forked from mirrors/gecko-dev
4876 lines
155 KiB
C++
4876 lines
155 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/AsyncEventDispatcher.h"
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#include "mozilla/ContentEvents.h"
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#include "mozilla/DebugOnly.h"
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#include "mozilla/EventDispatcher.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/PathHelpers.h"
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#include "mozilla/MathAlgorithms.h"
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#include "mozilla/MouseEvents.h"
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#include "mozilla/Likely.h"
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#include "gfxUtils.h"
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#include "nsAlgorithm.h"
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#include "nsCOMPtr.h"
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#include "nsFontMetrics.h"
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#include "nsPresContext.h"
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#include "nsNameSpaceManager.h"
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#include "nsTreeBodyFrame.h"
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#include "nsTreeSelection.h"
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#include "nsTreeImageListener.h"
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#include "nsGkAtoms.h"
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#include "nsCSSAnonBoxes.h"
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#include "nsIContent.h"
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#include "nsStyleContext.h"
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#include "nsIBoxObject.h"
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#include "nsIDOMCustomEvent.h"
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#include "nsIDOMMouseEvent.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMNodeList.h"
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#include "nsIDOMDocument.h"
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#include "nsIDOMXULElement.h"
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#include "nsIDocument.h"
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#include "mozilla/css/StyleRule.h"
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#include "nsCSSRendering.h"
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#include "nsIXULTemplateBuilder.h"
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#include "nsXPIDLString.h"
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#include "nsContainerFrame.h"
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#include "nsView.h"
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#include "nsViewManager.h"
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#include "nsVariant.h"
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#include "nsWidgetsCID.h"
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#include "nsBoxFrame.h"
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#include "nsIURL.h"
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#include "nsBoxLayoutState.h"
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#include "nsTreeContentView.h"
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#include "nsTreeUtils.h"
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#include "nsITheme.h"
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#include "imgIRequest.h"
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#include "imgIContainer.h"
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#include "imgILoader.h"
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#include "mozilla/dom/NodeInfo.h"
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#include "nsContentUtils.h"
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#include "nsLayoutUtils.h"
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#include "nsIScrollableFrame.h"
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#include "nsDisplayList.h"
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#include "mozilla/dom/TreeBoxObject.h"
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#include "nsRenderingContext.h"
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#include "nsIScriptableRegion.h"
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#include <algorithm>
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#include "ScrollbarActivity.h"
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#include "../../editor/libeditor/nsTextEditRules.h"
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#ifdef ACCESSIBILITY
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#include "nsAccessibilityService.h"
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#include "nsIWritablePropertyBag2.h"
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#endif
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#include "nsBidiUtils.h"
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using namespace mozilla;
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using namespace mozilla::gfx;
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using namespace mozilla::image;
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using namespace mozilla::layout;
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// Function that cancels all the image requests in our cache.
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void
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nsTreeBodyFrame::CancelImageRequests()
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{
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for (auto iter = mImageCache.Iter(); !iter.Done(); iter.Next()) {
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// If our imgIRequest object was registered with the refresh driver
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// then we need to deregister it.
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nsTreeImageCacheEntry entry = iter.UserData();
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nsLayoutUtils::DeregisterImageRequest(PresContext(), entry.request,
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nullptr);
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entry.request->CancelAndForgetObserver(NS_BINDING_ABORTED);
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}
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}
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//
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// NS_NewTreeFrame
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//
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// Creates a new tree frame
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//
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nsIFrame*
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NS_NewTreeBodyFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
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{
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return new (aPresShell) nsTreeBodyFrame(aContext);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsTreeBodyFrame)
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NS_QUERYFRAME_HEAD(nsTreeBodyFrame)
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NS_QUERYFRAME_ENTRY(nsIScrollbarMediator)
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NS_QUERYFRAME_ENTRY(nsTreeBodyFrame)
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NS_QUERYFRAME_TAIL_INHERITING(nsLeafBoxFrame)
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// Constructor
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nsTreeBodyFrame::nsTreeBodyFrame(nsStyleContext* aContext)
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:nsLeafBoxFrame(aContext),
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mSlots(nullptr),
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mImageCache(),
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mTopRowIndex(0),
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mPageLength(0),
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mHorzPosition(0),
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mOriginalHorzWidth(-1),
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mHorzWidth(0),
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mAdjustWidth(0),
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mRowHeight(0),
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mIndentation(0),
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mStringWidth(-1),
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mUpdateBatchNest(0),
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mRowCount(0),
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mMouseOverRow(-1),
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mFocused(false),
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mHasFixedRowCount(false),
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mVerticalOverflow(false),
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mHorizontalOverflow(false),
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mReflowCallbackPosted(false),
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mCheckingOverflow(false)
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{
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mColumns = new nsTreeColumns(this);
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}
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// Destructor
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nsTreeBodyFrame::~nsTreeBodyFrame()
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{
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CancelImageRequests();
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DetachImageListeners();
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delete mSlots;
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}
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static void
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GetBorderPadding(nsStyleContext* aContext, nsMargin& aMargin)
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{
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aMargin.SizeTo(0, 0, 0, 0);
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if (!aContext->StylePadding()->GetPadding(aMargin)) {
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NS_NOTYETIMPLEMENTED("percentage padding");
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}
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aMargin += aContext->StyleBorder()->GetComputedBorder();
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}
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static void
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AdjustForBorderPadding(nsStyleContext* aContext, nsRect& aRect)
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{
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nsMargin borderPadding(0, 0, 0, 0);
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GetBorderPadding(aContext, borderPadding);
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aRect.Deflate(borderPadding);
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}
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void
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nsTreeBodyFrame::Init(nsIContent* aContent,
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nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow)
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{
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nsLeafBoxFrame::Init(aContent, aParent, aPrevInFlow);
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mIndentation = GetIndentation();
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mRowHeight = GetRowHeight();
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EnsureBoxObject();
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if (LookAndFeel::GetInt(LookAndFeel::eIntID_UseOverlayScrollbars) != 0) {
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mScrollbarActivity = new ScrollbarActivity(
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static_cast<nsIScrollbarMediator*>(this));
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}
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}
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nsSize
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nsTreeBodyFrame::GetMinSize(nsBoxLayoutState& aBoxLayoutState)
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{
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EnsureView();
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nsIContent* baseElement = GetBaseElement();
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nsSize min(0,0);
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int32_t desiredRows;
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if (MOZ_UNLIKELY(!baseElement)) {
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desiredRows = 0;
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}
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else if (baseElement->IsHTMLElement(nsGkAtoms::select)) {
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min.width = CalcMaxRowWidth();
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nsAutoString size;
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baseElement->GetAttr(kNameSpaceID_None, nsGkAtoms::size, size);
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if (!size.IsEmpty()) {
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nsresult err;
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desiredRows = size.ToInteger(&err);
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mHasFixedRowCount = true;
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mPageLength = desiredRows;
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}
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else {
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desiredRows = 1;
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}
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}
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else {
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// tree
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nsAutoString rows;
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baseElement->GetAttr(kNameSpaceID_None, nsGkAtoms::rows, rows);
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if (!rows.IsEmpty()) {
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nsresult err;
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desiredRows = rows.ToInteger(&err);
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mPageLength = desiredRows;
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}
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else {
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desiredRows = 0;
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}
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}
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min.height = mRowHeight * desiredRows;
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AddBorderAndPadding(min);
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bool widthSet, heightSet;
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nsIFrame::AddCSSMinSize(aBoxLayoutState, this, min, widthSet, heightSet);
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return min;
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}
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nscoord
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nsTreeBodyFrame::CalcMaxRowWidth()
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{
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if (mStringWidth != -1)
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return mStringWidth;
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if (!mView)
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return 0;
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nsStyleContext* rowContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreerow);
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nsMargin rowMargin(0,0,0,0);
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GetBorderPadding(rowContext, rowMargin);
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nscoord rowWidth;
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nsTreeColumn* col;
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nsRenderingContext rc(
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PresContext()->PresShell()->CreateReferenceRenderingContext());
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for (int32_t row = 0; row < mRowCount; ++row) {
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rowWidth = 0;
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for (col = mColumns->GetFirstColumn(); col; col = col->GetNext()) {
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nscoord desiredWidth, currentWidth;
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nsresult rv = GetCellWidth(row, col, &rc, desiredWidth, currentWidth);
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if (NS_FAILED(rv)) {
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NS_NOTREACHED("invalid column");
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continue;
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}
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rowWidth += desiredWidth;
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}
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if (rowWidth > mStringWidth)
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mStringWidth = rowWidth;
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}
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mStringWidth += rowMargin.left + rowMargin.right;
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return mStringWidth;
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}
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void
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nsTreeBodyFrame::DestroyFrom(nsIFrame* aDestructRoot)
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{
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if (mScrollbarActivity) {
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mScrollbarActivity->Destroy();
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mScrollbarActivity = nullptr;
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}
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mScrollEvent.Revoke();
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// Make sure we cancel any posted callbacks.
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if (mReflowCallbackPosted) {
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PresContext()->PresShell()->CancelReflowCallback(this);
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mReflowCallbackPosted = false;
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}
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if (mColumns)
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mColumns->SetTree(nullptr);
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// Save off our info into the box object.
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nsCOMPtr<nsPIBoxObject> box(do_QueryInterface(mTreeBoxObject));
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if (box) {
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if (mTopRowIndex > 0) {
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nsAutoString topRowStr; topRowStr.AssignLiteral("topRow");
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nsAutoString topRow;
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topRow.AppendInt(mTopRowIndex);
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box->SetProperty(topRowStr.get(), topRow.get());
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}
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// Always null out the cached tree body frame.
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box->ClearCachedValues();
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mTreeBoxObject = nullptr; // Drop our ref here.
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}
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if (mView) {
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nsCOMPtr<nsITreeSelection> sel;
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mView->GetSelection(getter_AddRefs(sel));
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if (sel)
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sel->SetTree(nullptr);
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mView->SetTree(nullptr);
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mView = nullptr;
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}
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nsLeafBoxFrame::DestroyFrom(aDestructRoot);
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}
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void
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nsTreeBodyFrame::EnsureBoxObject()
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{
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if (!mTreeBoxObject) {
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nsIContent* parent = GetBaseElement();
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if (parent) {
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nsIDocument* nsDoc = parent->GetComposedDoc();
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if (!nsDoc) // there may be no document, if we're called from Destroy()
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return;
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ErrorResult ignored;
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nsCOMPtr<nsIBoxObject> box =
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nsDoc->GetBoxObjectFor(parent->AsElement(), ignored);
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// Ensure that we got a native box object.
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nsCOMPtr<nsPIBoxObject> pBox = do_QueryInterface(box);
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if (pBox) {
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nsCOMPtr<nsITreeBoxObject> realTreeBoxObject = do_QueryInterface(pBox);
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if (realTreeBoxObject) {
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nsTreeBodyFrame* innerTreeBoxObject =
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static_cast<dom::TreeBoxObject*>(realTreeBoxObject.get())
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->GetCachedTreeBodyFrame();
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ENSURE_TRUE(!innerTreeBoxObject || innerTreeBoxObject == this);
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mTreeBoxObject = realTreeBoxObject;
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}
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}
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}
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}
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}
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void
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nsTreeBodyFrame::EnsureView()
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{
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if (!mView) {
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if (PresContext()->PresShell()->IsReflowLocked()) {
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if (!mReflowCallbackPosted) {
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mReflowCallbackPosted = true;
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PresContext()->PresShell()->PostReflowCallback(this);
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}
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return;
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}
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nsCOMPtr<nsIBoxObject> box = do_QueryInterface(mTreeBoxObject);
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if (box) {
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nsWeakFrame weakFrame(this);
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nsCOMPtr<nsITreeView> treeView;
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mTreeBoxObject->GetView(getter_AddRefs(treeView));
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if (treeView && weakFrame.IsAlive()) {
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nsXPIDLString rowStr;
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box->GetProperty(MOZ_UTF16("topRow"),
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getter_Copies(rowStr));
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nsAutoString rowStr2(rowStr);
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nsresult error;
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int32_t rowIndex = rowStr2.ToInteger(&error);
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// Set our view.
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SetView(treeView);
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ENSURE_TRUE(weakFrame.IsAlive());
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// Scroll to the given row.
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// XXX is this optimal if we haven't laid out yet?
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ScrollToRow(rowIndex);
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ENSURE_TRUE(weakFrame.IsAlive());
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// Clear out the property info for the top row, but we always keep the
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// view current.
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box->RemoveProperty(MOZ_UTF16("topRow"));
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}
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}
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}
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}
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void
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nsTreeBodyFrame::ManageReflowCallback(const nsRect& aRect, nscoord aHorzWidth)
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{
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if (!mReflowCallbackPosted &&
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(!aRect.IsEqualEdges(mRect) || mHorzWidth != aHorzWidth)) {
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PresContext()->PresShell()->PostReflowCallback(this);
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mReflowCallbackPosted = true;
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mOriginalHorzWidth = mHorzWidth;
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}
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else if (mReflowCallbackPosted &&
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mHorzWidth != aHorzWidth && mOriginalHorzWidth == aHorzWidth) {
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PresContext()->PresShell()->CancelReflowCallback(this);
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mReflowCallbackPosted = false;
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mOriginalHorzWidth = -1;
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}
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}
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void
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nsTreeBodyFrame::SetBounds(nsBoxLayoutState& aBoxLayoutState, const nsRect& aRect,
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bool aRemoveOverflowArea)
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{
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nscoord horzWidth = CalcHorzWidth(GetScrollParts());
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ManageReflowCallback(aRect, horzWidth);
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mHorzWidth = horzWidth;
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nsLeafBoxFrame::SetBounds(aBoxLayoutState, aRect, aRemoveOverflowArea);
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}
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bool
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nsTreeBodyFrame::ReflowFinished()
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{
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if (!mView) {
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nsWeakFrame weakFrame(this);
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EnsureView();
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NS_ENSURE_TRUE(weakFrame.IsAlive(), false);
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}
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if (mView) {
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CalcInnerBox();
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ScrollParts parts = GetScrollParts();
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mHorzWidth = CalcHorzWidth(parts);
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if (!mHasFixedRowCount) {
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mPageLength = mInnerBox.height / mRowHeight;
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}
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int32_t lastPageTopRow = std::max(0, mRowCount - mPageLength);
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if (mTopRowIndex > lastPageTopRow)
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ScrollToRowInternal(parts, lastPageTopRow);
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nsIContent *treeContent = GetBaseElement();
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if (treeContent &&
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treeContent->AttrValueIs(kNameSpaceID_None,
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nsGkAtoms::keepcurrentinview,
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nsGkAtoms::_true, eCaseMatters)) {
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// make sure that the current selected item is still
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// visible after the tree changes size.
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nsCOMPtr<nsITreeSelection> sel;
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mView->GetSelection(getter_AddRefs(sel));
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if (sel) {
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int32_t currentIndex;
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sel->GetCurrentIndex(¤tIndex);
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if (currentIndex != -1)
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EnsureRowIsVisibleInternal(parts, currentIndex);
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}
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}
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if (!FullScrollbarsUpdate(false)) {
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return false;
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}
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}
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mReflowCallbackPosted = false;
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return false;
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}
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void
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nsTreeBodyFrame::ReflowCallbackCanceled()
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{
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mReflowCallbackPosted = false;
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}
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nsresult
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nsTreeBodyFrame::GetView(nsITreeView * *aView)
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{
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*aView = nullptr;
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nsWeakFrame weakFrame(this);
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EnsureView();
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NS_ENSURE_STATE(weakFrame.IsAlive());
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NS_IF_ADDREF(*aView = mView);
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return NS_OK;
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}
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nsresult
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nsTreeBodyFrame::SetView(nsITreeView * aView)
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{
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// First clear out the old view.
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if (mView) {
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nsCOMPtr<nsITreeSelection> sel;
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mView->GetSelection(getter_AddRefs(sel));
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if (sel)
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sel->SetTree(nullptr);
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mView->SetTree(nullptr);
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// Only reset the top row index and delete the columns if we had an old non-null view.
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mTopRowIndex = 0;
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}
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// Tree, meet the view.
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mView = aView;
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// Changing the view causes us to refetch our data. This will
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// necessarily entail a full invalidation of the tree.
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Invalidate();
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nsIContent *treeContent = GetBaseElement();
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if (treeContent) {
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#ifdef ACCESSIBILITY
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nsAccessibilityService* accService = nsIPresShell::AccService();
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if (accService)
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accService->TreeViewChanged(PresContext()->GetPresShell(), treeContent, mView);
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#endif
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FireDOMEvent(NS_LITERAL_STRING("TreeViewChanged"), treeContent);
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}
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if (mView) {
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// Give the view a new empty selection object to play with, but only if it
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// doesn't have one already.
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nsCOMPtr<nsITreeSelection> sel;
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mView->GetSelection(getter_AddRefs(sel));
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if (sel) {
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sel->SetTree(mTreeBoxObject);
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}
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else {
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NS_NewTreeSelection(mTreeBoxObject, getter_AddRefs(sel));
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mView->SetSelection(sel);
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}
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// View, meet the tree.
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nsWeakFrame weakFrame(this);
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mView->SetTree(mTreeBoxObject);
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NS_ENSURE_STATE(weakFrame.IsAlive());
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mView->GetRowCount(&mRowCount);
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if (!PresContext()->PresShell()->IsReflowLocked()) {
|
|
// The scrollbar will need to be updated.
|
|
FullScrollbarsUpdate(false);
|
|
} else if (!mReflowCallbackPosted) {
|
|
mReflowCallbackPosted = true;
|
|
PresContext()->PresShell()->PostReflowCallback(this);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::SetFocused(bool aFocused)
|
|
{
|
|
if (mFocused != aFocused) {
|
|
mFocused = aFocused;
|
|
if (mView) {
|
|
nsCOMPtr<nsITreeSelection> sel;
|
|
mView->GetSelection(getter_AddRefs(sel));
|
|
if (sel)
|
|
sel->InvalidateSelection();
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::GetTreeBody(nsIDOMElement** aElement)
|
|
{
|
|
//NS_ASSERTION(mContent, "no content, see bug #104878");
|
|
if (!mContent)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
return mContent->QueryInterface(NS_GET_IID(nsIDOMElement), (void**)aElement);
|
|
}
|
|
|
|
int32_t
|
|
nsTreeBodyFrame::RowHeight() const
|
|
{
|
|
return nsPresContext::AppUnitsToIntCSSPixels(mRowHeight);
|
|
}
|
|
|
|
int32_t
|
|
nsTreeBodyFrame::RowWidth()
|
|
{
|
|
return nsPresContext::AppUnitsToIntCSSPixels(CalcHorzWidth(GetScrollParts()));
|
|
}
|
|
|
|
int32_t
|
|
nsTreeBodyFrame::GetHorizontalPosition() const
|
|
{
|
|
return nsPresContext::AppUnitsToIntCSSPixels(mHorzPosition);
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::GetSelectionRegion(nsIScriptableRegion **aRegion)
|
|
{
|
|
*aRegion = nullptr;
|
|
|
|
nsCOMPtr<nsITreeSelection> selection;
|
|
mView->GetSelection(getter_AddRefs(selection));
|
|
NS_ENSURE_TRUE(selection, NS_OK);
|
|
|
|
nsCOMPtr<nsIScriptableRegion> region = do_CreateInstance("@mozilla.org/gfx/region;1");
|
|
NS_ENSURE_TRUE(region, NS_ERROR_FAILURE);
|
|
region->Init();
|
|
|
|
RefPtr<nsPresContext> presContext = PresContext();
|
|
nsIntRect rect = mRect.ToOutsidePixels(presContext->AppUnitsPerCSSPixel());
|
|
|
|
nsIFrame* rootFrame = presContext->PresShell()->GetRootFrame();
|
|
nsPoint origin = GetOffsetTo(rootFrame);
|
|
|
|
// iterate through the visible rows and add the selected ones to the
|
|
// drag region
|
|
int32_t x = nsPresContext::AppUnitsToIntCSSPixels(origin.x);
|
|
int32_t y = nsPresContext::AppUnitsToIntCSSPixels(origin.y);
|
|
int32_t top = y;
|
|
int32_t end = LastVisibleRow();
|
|
int32_t rowHeight = nsPresContext::AppUnitsToIntCSSPixels(mRowHeight);
|
|
for (int32_t i = mTopRowIndex; i <= end; i++) {
|
|
bool isSelected;
|
|
selection->IsSelected(i, &isSelected);
|
|
if (isSelected)
|
|
region->UnionRect(x, y, rect.width, rowHeight);
|
|
y += rowHeight;
|
|
}
|
|
|
|
// clip to the tree boundary in case one row extends past it
|
|
region->IntersectRect(x, top, rect.width, rect.height);
|
|
|
|
region.forget(aRegion);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::Invalidate()
|
|
{
|
|
if (mUpdateBatchNest)
|
|
return NS_OK;
|
|
|
|
InvalidateFrame();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::InvalidateColumn(nsITreeColumn* aCol)
|
|
{
|
|
if (mUpdateBatchNest)
|
|
return NS_OK;
|
|
|
|
RefPtr<nsTreeColumn> col = GetColumnImpl(aCol);
|
|
if (!col)
|
|
return NS_ERROR_INVALID_ARG;
|
|
|
|
#ifdef ACCESSIBILITY
|
|
if (nsIPresShell::IsAccessibilityActive())
|
|
FireInvalidateEvent(-1, -1, aCol, aCol);
|
|
#endif
|
|
|
|
nsRect columnRect;
|
|
nsresult rv = col->GetRect(this, mInnerBox.y, mInnerBox.height, &columnRect);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// When false then column is out of view
|
|
if (OffsetForHorzScroll(columnRect, true))
|
|
InvalidateFrameWithRect(columnRect);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::InvalidateRow(int32_t aIndex)
|
|
{
|
|
if (mUpdateBatchNest)
|
|
return NS_OK;
|
|
|
|
#ifdef ACCESSIBILITY
|
|
if (nsIPresShell::IsAccessibilityActive())
|
|
FireInvalidateEvent(aIndex, aIndex, nullptr, nullptr);
|
|
#endif
|
|
|
|
aIndex -= mTopRowIndex;
|
|
if (aIndex < 0 || aIndex > mPageLength)
|
|
return NS_OK;
|
|
|
|
nsRect rowRect(mInnerBox.x, mInnerBox.y+mRowHeight*aIndex, mInnerBox.width, mRowHeight);
|
|
InvalidateFrameWithRect(rowRect);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::InvalidateCell(int32_t aIndex, nsITreeColumn* aCol)
|
|
{
|
|
if (mUpdateBatchNest)
|
|
return NS_OK;
|
|
|
|
#ifdef ACCESSIBILITY
|
|
if (nsIPresShell::IsAccessibilityActive())
|
|
FireInvalidateEvent(aIndex, aIndex, aCol, aCol);
|
|
#endif
|
|
|
|
aIndex -= mTopRowIndex;
|
|
if (aIndex < 0 || aIndex > mPageLength)
|
|
return NS_OK;
|
|
|
|
RefPtr<nsTreeColumn> col = GetColumnImpl(aCol);
|
|
if (!col)
|
|
return NS_ERROR_INVALID_ARG;
|
|
|
|
nsRect cellRect;
|
|
nsresult rv = col->GetRect(this, mInnerBox.y+mRowHeight*aIndex, mRowHeight,
|
|
&cellRect);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (OffsetForHorzScroll(cellRect, true))
|
|
InvalidateFrameWithRect(cellRect);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::InvalidateRange(int32_t aStart, int32_t aEnd)
|
|
{
|
|
if (mUpdateBatchNest)
|
|
return NS_OK;
|
|
|
|
if (aStart == aEnd)
|
|
return InvalidateRow(aStart);
|
|
|
|
int32_t last = LastVisibleRow();
|
|
if (aStart > aEnd || aEnd < mTopRowIndex || aStart > last)
|
|
return NS_OK;
|
|
|
|
if (aStart < mTopRowIndex)
|
|
aStart = mTopRowIndex;
|
|
|
|
if (aEnd > last)
|
|
aEnd = last;
|
|
|
|
#ifdef ACCESSIBILITY
|
|
if (nsIPresShell::IsAccessibilityActive()) {
|
|
int32_t end =
|
|
mRowCount > 0 ? ((mRowCount <= aEnd) ? mRowCount - 1 : aEnd) : 0;
|
|
FireInvalidateEvent(aStart, end, nullptr, nullptr);
|
|
}
|
|
#endif
|
|
|
|
nsRect rangeRect(mInnerBox.x, mInnerBox.y+mRowHeight*(aStart-mTopRowIndex), mInnerBox.width, mRowHeight*(aEnd-aStart+1));
|
|
InvalidateFrameWithRect(rangeRect);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::InvalidateColumnRange(int32_t aStart, int32_t aEnd, nsITreeColumn* aCol)
|
|
{
|
|
if (mUpdateBatchNest)
|
|
return NS_OK;
|
|
|
|
RefPtr<nsTreeColumn> col = GetColumnImpl(aCol);
|
|
if (!col)
|
|
return NS_ERROR_INVALID_ARG;
|
|
|
|
if (aStart == aEnd)
|
|
return InvalidateCell(aStart, col);
|
|
|
|
int32_t last = LastVisibleRow();
|
|
if (aStart > aEnd || aEnd < mTopRowIndex || aStart > last)
|
|
return NS_OK;
|
|
|
|
if (aStart < mTopRowIndex)
|
|
aStart = mTopRowIndex;
|
|
|
|
if (aEnd > last)
|
|
aEnd = last;
|
|
|
|
#ifdef ACCESSIBILITY
|
|
if (nsIPresShell::IsAccessibilityActive()) {
|
|
int32_t end =
|
|
mRowCount > 0 ? ((mRowCount <= aEnd) ? mRowCount - 1 : aEnd) : 0;
|
|
FireInvalidateEvent(aStart, end, aCol, aCol);
|
|
}
|
|
#endif
|
|
|
|
nsRect rangeRect;
|
|
nsresult rv = col->GetRect(this,
|
|
mInnerBox.y+mRowHeight*(aStart-mTopRowIndex),
|
|
mRowHeight*(aEnd-aStart+1),
|
|
&rangeRect);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
InvalidateFrameWithRect(rangeRect);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
static void
|
|
FindScrollParts(nsIFrame* aCurrFrame, nsTreeBodyFrame::ScrollParts* aResult)
|
|
{
|
|
if (!aResult->mColumnsScrollFrame) {
|
|
nsIScrollableFrame* f = do_QueryFrame(aCurrFrame);
|
|
if (f) {
|
|
aResult->mColumnsFrame = aCurrFrame;
|
|
aResult->mColumnsScrollFrame = f;
|
|
}
|
|
}
|
|
|
|
nsScrollbarFrame *sf = do_QueryFrame(aCurrFrame);
|
|
if (sf) {
|
|
if (!aCurrFrame->IsHorizontal()) {
|
|
if (!aResult->mVScrollbar) {
|
|
aResult->mVScrollbar = sf;
|
|
}
|
|
} else {
|
|
if (!aResult->mHScrollbar) {
|
|
aResult->mHScrollbar = sf;
|
|
}
|
|
}
|
|
// don't bother searching inside a scrollbar
|
|
return;
|
|
}
|
|
|
|
nsIFrame* child = aCurrFrame->GetFirstPrincipalChild();
|
|
while (child &&
|
|
!child->GetContent()->IsRootOfNativeAnonymousSubtree() &&
|
|
(!aResult->mVScrollbar || !aResult->mHScrollbar ||
|
|
!aResult->mColumnsScrollFrame)) {
|
|
FindScrollParts(child, aResult);
|
|
child = child->GetNextSibling();
|
|
}
|
|
}
|
|
|
|
nsTreeBodyFrame::ScrollParts nsTreeBodyFrame::GetScrollParts()
|
|
{
|
|
ScrollParts result = { nullptr, nullptr, nullptr, nullptr, nullptr, nullptr };
|
|
nsIContent* baseElement = GetBaseElement();
|
|
nsIFrame* treeFrame =
|
|
baseElement ? baseElement->GetPrimaryFrame() : nullptr;
|
|
if (treeFrame) {
|
|
// The way we do this, searching through the entire frame subtree, is pretty
|
|
// dumb! We should know where these frames are.
|
|
FindScrollParts(treeFrame, &result);
|
|
if (result.mHScrollbar) {
|
|
result.mHScrollbar->SetScrollbarMediatorContent(GetContent());
|
|
nsIFrame* f = do_QueryFrame(result.mHScrollbar);
|
|
result.mHScrollbarContent = f->GetContent();
|
|
}
|
|
if (result.mVScrollbar) {
|
|
result.mVScrollbar->SetScrollbarMediatorContent(GetContent());
|
|
nsIFrame* f = do_QueryFrame(result.mVScrollbar);
|
|
result.mVScrollbarContent = f->GetContent();
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::UpdateScrollbars(const ScrollParts& aParts)
|
|
{
|
|
nscoord rowHeightAsPixels = nsPresContext::AppUnitsToIntCSSPixels(mRowHeight);
|
|
|
|
nsWeakFrame weakFrame(this);
|
|
|
|
if (aParts.mVScrollbar) {
|
|
nsAutoString curPos;
|
|
curPos.AppendInt(mTopRowIndex*rowHeightAsPixels);
|
|
aParts.mVScrollbarContent->
|
|
SetAttr(kNameSpaceID_None, nsGkAtoms::curpos, curPos, true);
|
|
// 'this' might be deleted here
|
|
}
|
|
|
|
if (weakFrame.IsAlive() && aParts.mHScrollbar) {
|
|
nsAutoString curPos;
|
|
curPos.AppendInt(mHorzPosition);
|
|
aParts.mHScrollbarContent->
|
|
SetAttr(kNameSpaceID_None, nsGkAtoms::curpos, curPos, true);
|
|
// 'this' might be deleted here
|
|
}
|
|
|
|
if (weakFrame.IsAlive() && mScrollbarActivity) {
|
|
mScrollbarActivity->ActivityOccurred();
|
|
}
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::CheckOverflow(const ScrollParts& aParts)
|
|
{
|
|
bool verticalOverflowChanged = false;
|
|
bool horizontalOverflowChanged = false;
|
|
|
|
if (!mVerticalOverflow && mRowCount > mPageLength) {
|
|
mVerticalOverflow = true;
|
|
verticalOverflowChanged = true;
|
|
}
|
|
else if (mVerticalOverflow && mRowCount <= mPageLength) {
|
|
mVerticalOverflow = false;
|
|
verticalOverflowChanged = true;
|
|
}
|
|
|
|
if (aParts.mColumnsFrame) {
|
|
nsRect bounds = aParts.mColumnsFrame->GetRect();
|
|
if (bounds.width != 0) {
|
|
/* Ignore overflows that are less than half a pixel. Yes these happen
|
|
all over the place when flex boxes are compressed real small.
|
|
Probably a result of a rounding errors somewhere in the layout code. */
|
|
bounds.width += nsPresContext::CSSPixelsToAppUnits(0.5f);
|
|
if (!mHorizontalOverflow && bounds.width < mHorzWidth) {
|
|
mHorizontalOverflow = true;
|
|
horizontalOverflowChanged = true;
|
|
} else if (mHorizontalOverflow && bounds.width >= mHorzWidth) {
|
|
mHorizontalOverflow = false;
|
|
horizontalOverflowChanged = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
nsWeakFrame weakFrame(this);
|
|
|
|
RefPtr<nsPresContext> presContext = PresContext();
|
|
nsCOMPtr<nsIPresShell> presShell = presContext->GetPresShell();
|
|
nsCOMPtr<nsIContent> content = mContent;
|
|
|
|
if (verticalOverflowChanged) {
|
|
InternalScrollPortEvent event(true,
|
|
mVerticalOverflow ? eScrollPortOverflow : eScrollPortUnderflow,
|
|
nullptr);
|
|
event.orient = InternalScrollPortEvent::vertical;
|
|
EventDispatcher::Dispatch(content, presContext, &event);
|
|
}
|
|
|
|
if (horizontalOverflowChanged) {
|
|
InternalScrollPortEvent event(true,
|
|
mHorizontalOverflow ? eScrollPortOverflow : eScrollPortUnderflow,
|
|
nullptr);
|
|
event.orient = InternalScrollPortEvent::horizontal;
|
|
EventDispatcher::Dispatch(content, presContext, &event);
|
|
}
|
|
|
|
// The synchronous event dispatch above can trigger reflow notifications.
|
|
// Flush those explicitly now, so that we can guard against potential infinite
|
|
// recursion. See bug 905909.
|
|
if (!weakFrame.IsAlive()) {
|
|
return;
|
|
}
|
|
NS_ASSERTION(!mCheckingOverflow, "mCheckingOverflow should not already be set");
|
|
// Don't use AutoRestore since we want to not touch mCheckingOverflow if we fail
|
|
// the weakFrame.IsAlive() check below
|
|
mCheckingOverflow = true;
|
|
presShell->FlushPendingNotifications(Flush_Layout);
|
|
if (!weakFrame.IsAlive()) {
|
|
return;
|
|
}
|
|
mCheckingOverflow = false;
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::InvalidateScrollbars(const ScrollParts& aParts, nsWeakFrame& aWeakColumnsFrame)
|
|
{
|
|
if (mUpdateBatchNest || !mView)
|
|
return;
|
|
nsWeakFrame weakFrame(this);
|
|
|
|
if (aParts.mVScrollbar) {
|
|
// Do Vertical Scrollbar
|
|
nsAutoString maxposStr;
|
|
|
|
nscoord rowHeightAsPixels = nsPresContext::AppUnitsToIntCSSPixels(mRowHeight);
|
|
|
|
int32_t size = rowHeightAsPixels * (mRowCount > mPageLength ? mRowCount - mPageLength : 0);
|
|
maxposStr.AppendInt(size);
|
|
aParts.mVScrollbarContent->
|
|
SetAttr(kNameSpaceID_None, nsGkAtoms::maxpos, maxposStr, true);
|
|
ENSURE_TRUE(weakFrame.IsAlive());
|
|
|
|
// Also set our page increment and decrement.
|
|
nscoord pageincrement = mPageLength*rowHeightAsPixels;
|
|
nsAutoString pageStr;
|
|
pageStr.AppendInt(pageincrement);
|
|
aParts.mVScrollbarContent->
|
|
SetAttr(kNameSpaceID_None, nsGkAtoms::pageincrement, pageStr, true);
|
|
ENSURE_TRUE(weakFrame.IsAlive());
|
|
}
|
|
|
|
if (aParts.mHScrollbar && aParts.mColumnsFrame && aWeakColumnsFrame.IsAlive()) {
|
|
// And now Horizontal scrollbar
|
|
nsRect bounds = aParts.mColumnsFrame->GetRect();
|
|
nsAutoString maxposStr;
|
|
|
|
maxposStr.AppendInt(mHorzWidth > bounds.width ? mHorzWidth - bounds.width : 0);
|
|
aParts.mHScrollbarContent->
|
|
SetAttr(kNameSpaceID_None, nsGkAtoms::maxpos, maxposStr, true);
|
|
ENSURE_TRUE(weakFrame.IsAlive());
|
|
|
|
nsAutoString pageStr;
|
|
pageStr.AppendInt(bounds.width);
|
|
aParts.mHScrollbarContent->
|
|
SetAttr(kNameSpaceID_None, nsGkAtoms::pageincrement, pageStr, true);
|
|
ENSURE_TRUE(weakFrame.IsAlive());
|
|
|
|
pageStr.Truncate();
|
|
pageStr.AppendInt(nsPresContext::CSSPixelsToAppUnits(16));
|
|
aParts.mHScrollbarContent->
|
|
SetAttr(kNameSpaceID_None, nsGkAtoms::increment, pageStr, true);
|
|
}
|
|
|
|
if (weakFrame.IsAlive() && mScrollbarActivity) {
|
|
mScrollbarActivity->ActivityOccurred();
|
|
}
|
|
}
|
|
|
|
// Takes client x/y in pixels, converts them to appunits, and converts into
|
|
// values relative to this nsTreeBodyFrame frame.
|
|
nsPoint
|
|
nsTreeBodyFrame::AdjustClientCoordsToBoxCoordSpace(int32_t aX, int32_t aY)
|
|
{
|
|
nsPoint point(nsPresContext::CSSPixelsToAppUnits(aX),
|
|
nsPresContext::CSSPixelsToAppUnits(aY));
|
|
|
|
nsPresContext* presContext = PresContext();
|
|
point -= GetOffsetTo(presContext->GetPresShell()->GetRootFrame());
|
|
|
|
// Adjust by the inner box coords, so that we're in the inner box's
|
|
// coordinate space.
|
|
point -= mInnerBox.TopLeft();
|
|
return point;
|
|
} // AdjustClientCoordsToBoxCoordSpace
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::GetRowAt(int32_t aX, int32_t aY, int32_t* _retval)
|
|
{
|
|
if (!mView)
|
|
return NS_OK;
|
|
|
|
nsPoint point = AdjustClientCoordsToBoxCoordSpace(aX, aY);
|
|
|
|
// Check if the coordinates are above our visible space.
|
|
if (point.y < 0) {
|
|
*_retval = -1;
|
|
return NS_OK;
|
|
}
|
|
|
|
*_retval = GetRowAt(point.x, point.y);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::GetCellAt(int32_t aX, int32_t aY, int32_t* aRow, nsITreeColumn** aCol,
|
|
nsACString& aChildElt)
|
|
{
|
|
if (!mView)
|
|
return NS_OK;
|
|
|
|
nsPoint point = AdjustClientCoordsToBoxCoordSpace(aX, aY);
|
|
|
|
// Check if the coordinates are above our visible space.
|
|
if (point.y < 0) {
|
|
*aRow = -1;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsTreeColumn* col;
|
|
nsIAtom* child;
|
|
GetCellAt(point.x, point.y, aRow, &col, &child);
|
|
|
|
if (col) {
|
|
NS_ADDREF(*aCol = col);
|
|
if (child == nsCSSAnonBoxes::moztreecell)
|
|
aChildElt.AssignLiteral("cell");
|
|
else if (child == nsCSSAnonBoxes::moztreetwisty)
|
|
aChildElt.AssignLiteral("twisty");
|
|
else if (child == nsCSSAnonBoxes::moztreeimage)
|
|
aChildElt.AssignLiteral("image");
|
|
else if (child == nsCSSAnonBoxes::moztreecelltext)
|
|
aChildElt.AssignLiteral("text");
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
//
|
|
// GetCoordsForCellItem
|
|
//
|
|
// Find the x/y location and width/height (all in PIXELS) of the given object
|
|
// in the given column.
|
|
//
|
|
// XXX IMPORTANT XXX:
|
|
// Hyatt says in the bug for this, that the following needs to be done:
|
|
// (1) You need to deal with overflow when computing cell rects. See other column
|
|
// iteration examples... if you don't deal with this, you'll mistakenly extend the
|
|
// cell into the scrollbar's rect.
|
|
//
|
|
// (2) You are adjusting the cell rect by the *row" border padding. That's
|
|
// wrong. You need to first adjust a row rect by its border/padding, and then the
|
|
// cell rect fits inside the adjusted row rect. It also can have border/padding
|
|
// as well as margins. The vertical direction isn't that important, but you need
|
|
// to get the horizontal direction right.
|
|
//
|
|
// (3) GetImageSize() does not include margins (but it does include border/padding).
|
|
// You need to make sure to add in the image's margins as well.
|
|
//
|
|
nsresult
|
|
nsTreeBodyFrame::GetCoordsForCellItem(int32_t aRow, nsITreeColumn* aCol, const nsACString& aElement,
|
|
int32_t *aX, int32_t *aY, int32_t *aWidth, int32_t *aHeight)
|
|
{
|
|
*aX = 0;
|
|
*aY = 0;
|
|
*aWidth = 0;
|
|
*aHeight = 0;
|
|
|
|
bool isRTL = StyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL;
|
|
nscoord currX = mInnerBox.x - mHorzPosition;
|
|
|
|
// The Rect for the requested item.
|
|
nsRect theRect;
|
|
|
|
nsPresContext* presContext = PresContext();
|
|
|
|
for (nsTreeColumn* currCol = mColumns->GetFirstColumn(); currCol; currCol = currCol->GetNext()) {
|
|
|
|
// The Rect for the current cell.
|
|
nscoord colWidth;
|
|
#ifdef DEBUG
|
|
nsresult rv =
|
|
#endif
|
|
currCol->GetWidthInTwips(this, &colWidth);
|
|
NS_ASSERTION(NS_SUCCEEDED(rv), "invalid column");
|
|
|
|
nsRect cellRect(currX, mInnerBox.y + mRowHeight * (aRow - mTopRowIndex),
|
|
colWidth, mRowHeight);
|
|
|
|
// Check the ID of the current column to see if it matches. If it doesn't
|
|
// increment the current X value and continue to the next column.
|
|
if (currCol != aCol) {
|
|
currX += cellRect.width;
|
|
continue;
|
|
}
|
|
// Now obtain the properties for our cell.
|
|
PrefillPropertyArray(aRow, currCol);
|
|
|
|
nsAutoString properties;
|
|
mView->GetCellProperties(aRow, currCol, properties);
|
|
nsTreeUtils::TokenizeProperties(properties, mScratchArray);
|
|
|
|
nsStyleContext* rowContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreerow);
|
|
|
|
// We don't want to consider any of the decorations that may be present
|
|
// on the current row, so we have to deflate the rect by the border and
|
|
// padding and offset its left and top coordinates appropriately.
|
|
AdjustForBorderPadding(rowContext, cellRect);
|
|
|
|
nsStyleContext* cellContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreecell);
|
|
|
|
NS_NAMED_LITERAL_CSTRING(cell, "cell");
|
|
if (currCol->IsCycler() || cell.Equals(aElement)) {
|
|
// If the current Column is a Cycler, then the Rect is just the cell - the margins.
|
|
// Similarly, if we're just being asked for the cell rect, provide it.
|
|
|
|
theRect = cellRect;
|
|
nsMargin cellMargin;
|
|
cellContext->StyleMargin()->GetMargin(cellMargin);
|
|
theRect.Deflate(cellMargin);
|
|
break;
|
|
}
|
|
|
|
// Since we're not looking for the cell, and since the cell isn't a cycler,
|
|
// we're looking for some subcomponent, and now we need to subtract the
|
|
// borders and padding of the cell from cellRect so this does not
|
|
// interfere with our computations.
|
|
AdjustForBorderPadding(cellContext, cellRect);
|
|
|
|
nsRenderingContext rc(
|
|
presContext->PresShell()->CreateReferenceRenderingContext());
|
|
|
|
// Now we'll start making our way across the cell, starting at the edge of
|
|
// the cell and proceeding until we hit the right edge. |cellX| is the
|
|
// working X value that we will increment as we crawl from left to right.
|
|
nscoord cellX = cellRect.x;
|
|
nscoord remainWidth = cellRect.width;
|
|
|
|
if (currCol->IsPrimary()) {
|
|
// If the current Column is a Primary, then we need to take into account the indentation
|
|
// and possibly a twisty.
|
|
|
|
// The amount of indentation is the indentation width (|mIndentation|) by the level.
|
|
int32_t level;
|
|
mView->GetLevel(aRow, &level);
|
|
if (!isRTL)
|
|
cellX += mIndentation * level;
|
|
remainWidth -= mIndentation * level;
|
|
|
|
// Find the twisty rect by computing its size.
|
|
nsRect imageRect;
|
|
nsRect twistyRect(cellRect);
|
|
nsStyleContext* twistyContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreetwisty);
|
|
GetTwistyRect(aRow, currCol, imageRect, twistyRect, presContext,
|
|
twistyContext);
|
|
|
|
if (NS_LITERAL_CSTRING("twisty").Equals(aElement)) {
|
|
// If we're looking for the twisty Rect, just return the size
|
|
theRect = twistyRect;
|
|
break;
|
|
}
|
|
|
|
// Now we need to add in the margins of the twisty element, so that we
|
|
// can find the offset of the next element in the cell.
|
|
nsMargin twistyMargin;
|
|
twistyContext->StyleMargin()->GetMargin(twistyMargin);
|
|
twistyRect.Inflate(twistyMargin);
|
|
|
|
// Adjust our working X value with the twisty width (image size, margins,
|
|
// borders, padding.
|
|
if (!isRTL)
|
|
cellX += twistyRect.width;
|
|
}
|
|
|
|
// Cell Image
|
|
nsStyleContext* imageContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreeimage);
|
|
|
|
nsRect imageSize = GetImageSize(aRow, currCol, false, imageContext);
|
|
if (NS_LITERAL_CSTRING("image").Equals(aElement)) {
|
|
theRect = imageSize;
|
|
theRect.x = cellX;
|
|
theRect.y = cellRect.y;
|
|
break;
|
|
}
|
|
|
|
// Add in the margins of the cell image.
|
|
nsMargin imageMargin;
|
|
imageContext->StyleMargin()->GetMargin(imageMargin);
|
|
imageSize.Inflate(imageMargin);
|
|
|
|
// Increment cellX by the image width
|
|
if (!isRTL)
|
|
cellX += imageSize.width;
|
|
|
|
// Cell Text
|
|
nsAutoString cellText;
|
|
mView->GetCellText(aRow, currCol, cellText);
|
|
// We're going to measure this text so we need to ensure bidi is enabled if
|
|
// necessary
|
|
CheckTextForBidi(cellText);
|
|
|
|
// Create a scratch rect to represent the text rectangle, with the current
|
|
// X and Y coords, and a guess at the width and height. The width is the
|
|
// remaining width we have left to traverse in the cell, which will be the
|
|
// widest possible value for the text rect, and the row height.
|
|
nsRect textRect(cellX, cellRect.y, remainWidth, cellRect.height);
|
|
|
|
// Measure the width of the text. If the width of the text is greater than
|
|
// the remaining width available, then we just assume that the text has
|
|
// been cropped and use the remaining rect as the text Rect. Otherwise,
|
|
// we add in borders and padding to the text dimension and give that back.
|
|
nsStyleContext* textContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreecelltext);
|
|
|
|
RefPtr<nsFontMetrics> fm;
|
|
nsLayoutUtils::GetFontMetricsForStyleContext(textContext,
|
|
getter_AddRefs(fm));
|
|
nscoord height = fm->MaxHeight();
|
|
|
|
nsMargin textMargin;
|
|
textContext->StyleMargin()->GetMargin(textMargin);
|
|
textRect.Deflate(textMargin);
|
|
|
|
// Center the text. XXX Obey vertical-align style prop?
|
|
if (height < textRect.height) {
|
|
textRect.y += (textRect.height - height) / 2;
|
|
textRect.height = height;
|
|
}
|
|
|
|
nsMargin bp(0,0,0,0);
|
|
GetBorderPadding(textContext, bp);
|
|
textRect.height += bp.top + bp.bottom;
|
|
|
|
AdjustForCellText(cellText, aRow, currCol, rc, *fm, textRect);
|
|
|
|
theRect = textRect;
|
|
}
|
|
|
|
if (isRTL)
|
|
theRect.x = mInnerBox.width - theRect.x - theRect.width;
|
|
|
|
*aX = nsPresContext::AppUnitsToIntCSSPixels(theRect.x);
|
|
*aY = nsPresContext::AppUnitsToIntCSSPixels(theRect.y);
|
|
*aWidth = nsPresContext::AppUnitsToIntCSSPixels(theRect.width);
|
|
*aHeight = nsPresContext::AppUnitsToIntCSSPixels(theRect.height);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
int32_t
|
|
nsTreeBodyFrame::GetRowAt(int32_t aX, int32_t aY)
|
|
{
|
|
// Now just mod by our total inner box height and add to our top row index.
|
|
int32_t row = (aY/mRowHeight)+mTopRowIndex;
|
|
|
|
// Check if the coordinates are below our visible space (or within our visible
|
|
// space but below any row).
|
|
if (row > mTopRowIndex + mPageLength || row >= mRowCount)
|
|
return -1;
|
|
|
|
return row;
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::CheckTextForBidi(nsAutoString& aText)
|
|
{
|
|
// We could check to see whether the prescontext already has bidi enabled,
|
|
// but usually it won't, so it's probably faster to avoid the call to
|
|
// GetPresContext() when it's not needed.
|
|
if (HasRTLChars(aText)) {
|
|
PresContext()->SetBidiEnabled();
|
|
}
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::AdjustForCellText(nsAutoString& aText,
|
|
int32_t aRowIndex, nsTreeColumn* aColumn,
|
|
nsRenderingContext& aRenderingContext,
|
|
nsFontMetrics& aFontMetrics,
|
|
nsRect& aTextRect)
|
|
{
|
|
NS_PRECONDITION(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
nscoord maxWidth = aTextRect.width;
|
|
bool widthIsGreater = nsLayoutUtils::StringWidthIsGreaterThan(aText,
|
|
aFontMetrics,
|
|
aRenderingContext,
|
|
maxWidth);
|
|
|
|
if (aColumn->Overflow()) {
|
|
DebugOnly<nsresult> rv;
|
|
nsTreeColumn* nextColumn = aColumn->GetNext();
|
|
while (nextColumn && widthIsGreater) {
|
|
while (nextColumn) {
|
|
nscoord width;
|
|
rv = nextColumn->GetWidthInTwips(this, &width);
|
|
NS_ASSERTION(NS_SUCCEEDED(rv), "nextColumn is invalid");
|
|
|
|
if (width != 0)
|
|
break;
|
|
|
|
nextColumn = nextColumn->GetNext();
|
|
}
|
|
|
|
if (nextColumn) {
|
|
nsAutoString nextText;
|
|
mView->GetCellText(aRowIndex, nextColumn, nextText);
|
|
// We don't measure or draw this text so no need to check it for
|
|
// bidi-ness
|
|
|
|
if (nextText.Length() == 0) {
|
|
nscoord width;
|
|
rv = nextColumn->GetWidthInTwips(this, &width);
|
|
NS_ASSERTION(NS_SUCCEEDED(rv), "nextColumn is invalid");
|
|
|
|
maxWidth += width;
|
|
widthIsGreater = nsLayoutUtils::StringWidthIsGreaterThan(aText,
|
|
aFontMetrics,
|
|
aRenderingContext,
|
|
maxWidth);
|
|
|
|
nextColumn = nextColumn->GetNext();
|
|
}
|
|
else {
|
|
nextColumn = nullptr;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
nscoord width;
|
|
if (widthIsGreater) {
|
|
// See if the width is even smaller than the ellipsis
|
|
// If so, clear the text completely.
|
|
const nsDependentString& kEllipsis = nsContentUtils::GetLocalizedEllipsis();
|
|
aFontMetrics.SetTextRunRTL(false);
|
|
nscoord ellipsisWidth =
|
|
nsLayoutUtils::AppUnitWidthOfString(kEllipsis, aFontMetrics,
|
|
aRenderingContext);
|
|
|
|
width = maxWidth;
|
|
if (ellipsisWidth > width)
|
|
aText.SetLength(0);
|
|
else if (ellipsisWidth == width)
|
|
aText.Assign(kEllipsis);
|
|
else {
|
|
// We will be drawing an ellipsis, thank you very much.
|
|
// Subtract out the required width of the ellipsis.
|
|
// This is the total remaining width we have to play with.
|
|
width -= ellipsisWidth;
|
|
|
|
// Now we crop.
|
|
switch (aColumn->GetCropStyle()) {
|
|
default:
|
|
case 0: {
|
|
// Crop right.
|
|
nscoord cwidth;
|
|
nscoord twidth = 0;
|
|
uint32_t length = aText.Length();
|
|
uint32_t i;
|
|
for (i = 0; i < length; ++i) {
|
|
char16_t ch = aText[i];
|
|
// XXX this is horrible and doesn't handle clusters
|
|
cwidth = nsLayoutUtils::AppUnitWidthOfString(ch, aFontMetrics,
|
|
aRenderingContext);
|
|
if (twidth + cwidth > width)
|
|
break;
|
|
twidth += cwidth;
|
|
}
|
|
aText.Truncate(i);
|
|
aText.Append(kEllipsis);
|
|
}
|
|
break;
|
|
|
|
case 2: {
|
|
// Crop left.
|
|
nscoord cwidth;
|
|
nscoord twidth = 0;
|
|
int32_t length = aText.Length();
|
|
int32_t i;
|
|
for (i=length-1; i >= 0; --i) {
|
|
char16_t ch = aText[i];
|
|
cwidth = nsLayoutUtils::AppUnitWidthOfString(ch, aFontMetrics,
|
|
aRenderingContext);
|
|
if (twidth + cwidth > width)
|
|
break;
|
|
twidth += cwidth;
|
|
}
|
|
|
|
nsAutoString copy;
|
|
aText.Right(copy, length-1-i);
|
|
aText.Assign(kEllipsis);
|
|
aText += copy;
|
|
}
|
|
break;
|
|
|
|
case 1:
|
|
{
|
|
// Crop center.
|
|
nsAutoString leftStr, rightStr;
|
|
nscoord cwidth, twidth = 0;
|
|
int32_t length = aText.Length();
|
|
int32_t rightPos = length - 1;
|
|
for (int32_t leftPos = 0; leftPos < rightPos; ++leftPos) {
|
|
char16_t ch = aText[leftPos];
|
|
cwidth = nsLayoutUtils::AppUnitWidthOfString(ch, aFontMetrics,
|
|
aRenderingContext);
|
|
twidth += cwidth;
|
|
if (twidth > width)
|
|
break;
|
|
leftStr.Append(ch);
|
|
|
|
ch = aText[rightPos];
|
|
cwidth = nsLayoutUtils::AppUnitWidthOfString(ch, aFontMetrics,
|
|
aRenderingContext);
|
|
twidth += cwidth;
|
|
if (twidth > width)
|
|
break;
|
|
rightStr.Insert(ch, 0);
|
|
--rightPos;
|
|
}
|
|
aText = leftStr;
|
|
aText.Append(kEllipsis);
|
|
aText += rightStr;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
width = nsLayoutUtils::AppUnitWidthOfStringBidi(aText, this, aFontMetrics,
|
|
aRenderingContext);
|
|
|
|
switch (aColumn->GetTextAlignment()) {
|
|
case NS_STYLE_TEXT_ALIGN_RIGHT: {
|
|
aTextRect.x += aTextRect.width - width;
|
|
}
|
|
break;
|
|
case NS_STYLE_TEXT_ALIGN_CENTER: {
|
|
aTextRect.x += (aTextRect.width - width) / 2;
|
|
}
|
|
break;
|
|
}
|
|
|
|
aTextRect.width = width;
|
|
}
|
|
|
|
nsIAtom*
|
|
nsTreeBodyFrame::GetItemWithinCellAt(nscoord aX, const nsRect& aCellRect,
|
|
int32_t aRowIndex,
|
|
nsTreeColumn* aColumn)
|
|
{
|
|
NS_PRECONDITION(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
// Obtain the properties for our cell.
|
|
PrefillPropertyArray(aRowIndex, aColumn);
|
|
nsAutoString properties;
|
|
mView->GetCellProperties(aRowIndex, aColumn, properties);
|
|
nsTreeUtils::TokenizeProperties(properties, mScratchArray);
|
|
|
|
// Resolve style for the cell.
|
|
nsStyleContext* cellContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreecell);
|
|
|
|
// Obtain the margins for the cell and then deflate our rect by that
|
|
// amount. The cell is assumed to be contained within the deflated rect.
|
|
nsRect cellRect(aCellRect);
|
|
nsMargin cellMargin;
|
|
cellContext->StyleMargin()->GetMargin(cellMargin);
|
|
cellRect.Deflate(cellMargin);
|
|
|
|
// Adjust the rect for its border and padding.
|
|
AdjustForBorderPadding(cellContext, cellRect);
|
|
|
|
if (aX < cellRect.x || aX >= cellRect.x + cellRect.width) {
|
|
// The user clicked within the cell's margins/borders/padding. This constitutes a click on the cell.
|
|
return nsCSSAnonBoxes::moztreecell;
|
|
}
|
|
|
|
nscoord currX = cellRect.x;
|
|
nscoord remainingWidth = cellRect.width;
|
|
|
|
// Handle right alignment hit testing.
|
|
bool isRTL = StyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL;
|
|
|
|
nsPresContext* presContext = PresContext();
|
|
nsRenderingContext rc(
|
|
presContext->PresShell()->CreateReferenceRenderingContext());
|
|
|
|
if (aColumn->IsPrimary()) {
|
|
// If we're the primary column, we have indentation and a twisty.
|
|
int32_t level;
|
|
mView->GetLevel(aRowIndex, &level);
|
|
|
|
if (!isRTL)
|
|
currX += mIndentation*level;
|
|
remainingWidth -= mIndentation*level;
|
|
|
|
if ((isRTL && aX > currX + remainingWidth) ||
|
|
(!isRTL && aX < currX)) {
|
|
// The user clicked within the indentation.
|
|
return nsCSSAnonBoxes::moztreecell;
|
|
}
|
|
|
|
// Always leave space for the twisty.
|
|
nsRect twistyRect(currX, cellRect.y, remainingWidth, cellRect.height);
|
|
bool hasTwisty = false;
|
|
bool isContainer = false;
|
|
mView->IsContainer(aRowIndex, &isContainer);
|
|
if (isContainer) {
|
|
bool isContainerEmpty = false;
|
|
mView->IsContainerEmpty(aRowIndex, &isContainerEmpty);
|
|
if (!isContainerEmpty)
|
|
hasTwisty = true;
|
|
}
|
|
|
|
// Resolve style for the twisty.
|
|
nsStyleContext* twistyContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreetwisty);
|
|
|
|
nsRect imageSize;
|
|
GetTwistyRect(aRowIndex, aColumn, imageSize, twistyRect, presContext,
|
|
twistyContext);
|
|
|
|
// We will treat a click as hitting the twisty if it happens on the margins, borders, padding,
|
|
// or content of the twisty object. By allowing a "slop" into the margin, we make it a little
|
|
// bit easier for a user to hit the twisty. (We don't want to be too picky here.)
|
|
nsMargin twistyMargin;
|
|
twistyContext->StyleMargin()->GetMargin(twistyMargin);
|
|
twistyRect.Inflate(twistyMargin);
|
|
if (isRTL)
|
|
twistyRect.x = currX + remainingWidth - twistyRect.width;
|
|
|
|
// Now we test to see if aX is actually within the twistyRect. If it is, and if the item should
|
|
// have a twisty, then we return "twisty". If it is within the rect but we shouldn't have a twisty,
|
|
// then we return "cell".
|
|
if (aX >= twistyRect.x && aX < twistyRect.x + twistyRect.width) {
|
|
if (hasTwisty)
|
|
return nsCSSAnonBoxes::moztreetwisty;
|
|
else
|
|
return nsCSSAnonBoxes::moztreecell;
|
|
}
|
|
|
|
if (!isRTL)
|
|
currX += twistyRect.width;
|
|
remainingWidth -= twistyRect.width;
|
|
}
|
|
|
|
// Now test to see if the user hit the icon for the cell.
|
|
nsRect iconRect(currX, cellRect.y, remainingWidth, cellRect.height);
|
|
|
|
// Resolve style for the image.
|
|
nsStyleContext* imageContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreeimage);
|
|
|
|
nsRect iconSize = GetImageSize(aRowIndex, aColumn, false, imageContext);
|
|
nsMargin imageMargin;
|
|
imageContext->StyleMargin()->GetMargin(imageMargin);
|
|
iconSize.Inflate(imageMargin);
|
|
iconRect.width = iconSize.width;
|
|
if (isRTL)
|
|
iconRect.x = currX + remainingWidth - iconRect.width;
|
|
|
|
if (aX >= iconRect.x && aX < iconRect.x + iconRect.width) {
|
|
// The user clicked on the image.
|
|
return nsCSSAnonBoxes::moztreeimage;
|
|
}
|
|
|
|
if (!isRTL)
|
|
currX += iconRect.width;
|
|
remainingWidth -= iconRect.width;
|
|
|
|
nsAutoString cellText;
|
|
mView->GetCellText(aRowIndex, aColumn, cellText);
|
|
// We're going to measure this text so we need to ensure bidi is enabled if
|
|
// necessary
|
|
CheckTextForBidi(cellText);
|
|
|
|
nsRect textRect(currX, cellRect.y, remainingWidth, cellRect.height);
|
|
|
|
nsStyleContext* textContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreecelltext);
|
|
|
|
nsMargin textMargin;
|
|
textContext->StyleMargin()->GetMargin(textMargin);
|
|
textRect.Deflate(textMargin);
|
|
|
|
AdjustForBorderPadding(textContext, textRect);
|
|
|
|
RefPtr<nsFontMetrics> fm;
|
|
nsLayoutUtils::GetFontMetricsForStyleContext(textContext,
|
|
getter_AddRefs(fm));
|
|
AdjustForCellText(cellText, aRowIndex, aColumn, rc, *fm, textRect);
|
|
|
|
if (aX >= textRect.x && aX < textRect.x + textRect.width)
|
|
return nsCSSAnonBoxes::moztreecelltext;
|
|
else
|
|
return nsCSSAnonBoxes::moztreecell;
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::GetCellAt(nscoord aX, nscoord aY, int32_t* aRow,
|
|
nsTreeColumn** aCol, nsIAtom** aChildElt)
|
|
{
|
|
*aCol = nullptr;
|
|
*aChildElt = nullptr;
|
|
|
|
*aRow = GetRowAt(aX, aY);
|
|
if (*aRow < 0)
|
|
return;
|
|
|
|
// Determine the column hit.
|
|
for (nsTreeColumn* currCol = mColumns->GetFirstColumn(); currCol;
|
|
currCol = currCol->GetNext()) {
|
|
nsRect cellRect;
|
|
nsresult rv = currCol->GetRect(this,
|
|
mInnerBox.y +
|
|
mRowHeight * (*aRow - mTopRowIndex),
|
|
mRowHeight,
|
|
&cellRect);
|
|
if (NS_FAILED(rv)) {
|
|
NS_NOTREACHED("column has no frame");
|
|
continue;
|
|
}
|
|
|
|
if (!OffsetForHorzScroll(cellRect, false))
|
|
continue;
|
|
|
|
if (aX >= cellRect.x && aX < cellRect.x + cellRect.width) {
|
|
// We know the column hit now.
|
|
*aCol = currCol;
|
|
|
|
if (currCol->IsCycler())
|
|
// Cyclers contain only images. Fill this in immediately and return.
|
|
*aChildElt = nsCSSAnonBoxes::moztreeimage;
|
|
else
|
|
*aChildElt = GetItemWithinCellAt(aX, cellRect, *aRow, currCol);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::GetCellWidth(int32_t aRow, nsTreeColumn* aCol,
|
|
nsRenderingContext* aRenderingContext,
|
|
nscoord& aDesiredSize, nscoord& aCurrentSize)
|
|
{
|
|
NS_PRECONDITION(aCol, "aCol must not be null");
|
|
NS_PRECONDITION(aRenderingContext, "aRenderingContext must not be null");
|
|
|
|
// The rect for the current cell.
|
|
nscoord colWidth;
|
|
nsresult rv = aCol->GetWidthInTwips(this, &colWidth);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsRect cellRect(0, 0, colWidth, mRowHeight);
|
|
|
|
int32_t overflow = cellRect.x+cellRect.width-(mInnerBox.x+mInnerBox.width);
|
|
if (overflow > 0)
|
|
cellRect.width -= overflow;
|
|
|
|
// Adjust borders and padding for the cell.
|
|
nsStyleContext* cellContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreecell);
|
|
nsMargin bp(0,0,0,0);
|
|
GetBorderPadding(cellContext, bp);
|
|
|
|
aCurrentSize = cellRect.width;
|
|
aDesiredSize = bp.left + bp.right;
|
|
|
|
if (aCol->IsPrimary()) {
|
|
// If the current Column is a Primary, then we need to take into account
|
|
// the indentation and possibly a twisty.
|
|
|
|
// The amount of indentation is the indentation width (|mIndentation|) by the level.
|
|
int32_t level;
|
|
mView->GetLevel(aRow, &level);
|
|
aDesiredSize += mIndentation * level;
|
|
|
|
// Find the twisty rect by computing its size.
|
|
nsStyleContext* twistyContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreetwisty);
|
|
|
|
nsRect imageSize;
|
|
nsRect twistyRect(cellRect);
|
|
GetTwistyRect(aRow, aCol, imageSize, twistyRect, PresContext(),
|
|
twistyContext);
|
|
|
|
// Add in the margins of the twisty element.
|
|
nsMargin twistyMargin;
|
|
twistyContext->StyleMargin()->GetMargin(twistyMargin);
|
|
twistyRect.Inflate(twistyMargin);
|
|
|
|
aDesiredSize += twistyRect.width;
|
|
}
|
|
|
|
nsStyleContext* imageContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreeimage);
|
|
|
|
// Account for the width of the cell image.
|
|
nsRect imageSize = GetImageSize(aRow, aCol, false, imageContext);
|
|
// Add in the margins of the cell image.
|
|
nsMargin imageMargin;
|
|
imageContext->StyleMargin()->GetMargin(imageMargin);
|
|
imageSize.Inflate(imageMargin);
|
|
|
|
aDesiredSize += imageSize.width;
|
|
|
|
// Get the cell text.
|
|
nsAutoString cellText;
|
|
mView->GetCellText(aRow, aCol, cellText);
|
|
// We're going to measure this text so we need to ensure bidi is enabled if
|
|
// necessary
|
|
CheckTextForBidi(cellText);
|
|
|
|
nsStyleContext* textContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreecelltext);
|
|
|
|
// Get the borders and padding for the text.
|
|
GetBorderPadding(textContext, bp);
|
|
|
|
RefPtr<nsFontMetrics> fm;
|
|
nsLayoutUtils::GetFontMetricsForStyleContext(textContext,
|
|
getter_AddRefs(fm));
|
|
// Get the width of the text itself
|
|
nscoord width = nsLayoutUtils::AppUnitWidthOfStringBidi(cellText, this, *fm,
|
|
*aRenderingContext);
|
|
nscoord totalTextWidth = width + bp.left + bp.right;
|
|
aDesiredSize += totalTextWidth;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::IsCellCropped(int32_t aRow, nsITreeColumn* aCol, bool *_retval)
|
|
{
|
|
nscoord currentSize, desiredSize;
|
|
nsresult rv;
|
|
|
|
RefPtr<nsTreeColumn> col = GetColumnImpl(aCol);
|
|
if (!col)
|
|
return NS_ERROR_INVALID_ARG;
|
|
|
|
nsRenderingContext rc(
|
|
PresContext()->PresShell()->CreateReferenceRenderingContext());
|
|
|
|
rv = GetCellWidth(aRow, col, &rc, desiredSize, currentSize);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
*_retval = desiredSize > currentSize;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::MarkDirtyIfSelect()
|
|
{
|
|
nsIContent* baseElement = GetBaseElement();
|
|
|
|
if (baseElement && baseElement->IsHTMLElement(nsGkAtoms::select)) {
|
|
// If we are an intrinsically sized select widget, we may need to
|
|
// resize, if the widest item was removed or a new item was added.
|
|
// XXX optimize this more
|
|
|
|
mStringWidth = -1;
|
|
PresContext()->PresShell()->FrameNeedsReflow(this,
|
|
nsIPresShell::eTreeChange,
|
|
NS_FRAME_IS_DIRTY);
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::CreateTimer(const LookAndFeel::IntID aID,
|
|
nsTimerCallbackFunc aFunc, int32_t aType,
|
|
nsITimer** aTimer)
|
|
{
|
|
// Get the delay from the look and feel service.
|
|
int32_t delay = LookAndFeel::GetInt(aID, 0);
|
|
|
|
nsCOMPtr<nsITimer> timer;
|
|
|
|
// Create a new timer only if the delay is greater than zero.
|
|
// Zero value means that this feature is completely disabled.
|
|
if (delay > 0) {
|
|
timer = do_CreateInstance("@mozilla.org/timer;1");
|
|
if (timer)
|
|
timer->InitWithFuncCallback(aFunc, this, delay, aType);
|
|
}
|
|
|
|
NS_IF_ADDREF(*aTimer = timer);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::RowCountChanged(int32_t aIndex, int32_t aCount)
|
|
{
|
|
if (aCount == 0 || !mView)
|
|
return NS_OK; // Nothing to do.
|
|
|
|
#ifdef ACCESSIBILITY
|
|
if (nsIPresShell::IsAccessibilityActive())
|
|
FireRowCountChangedEvent(aIndex, aCount);
|
|
#endif
|
|
|
|
// Adjust our selection.
|
|
nsCOMPtr<nsITreeSelection> sel;
|
|
mView->GetSelection(getter_AddRefs(sel));
|
|
if (sel)
|
|
sel->AdjustSelection(aIndex, aCount);
|
|
|
|
if (mUpdateBatchNest)
|
|
return NS_OK;
|
|
|
|
mRowCount += aCount;
|
|
#ifdef DEBUG
|
|
int32_t rowCount = mRowCount;
|
|
mView->GetRowCount(&rowCount);
|
|
NS_ASSERTION(rowCount == mRowCount, "row count did not change by the amount suggested, check caller");
|
|
#endif
|
|
|
|
int32_t count = Abs(aCount);
|
|
int32_t last = LastVisibleRow();
|
|
if (aIndex >= mTopRowIndex && aIndex <= last)
|
|
InvalidateRange(aIndex, last);
|
|
|
|
ScrollParts parts = GetScrollParts();
|
|
|
|
if (mTopRowIndex == 0) {
|
|
// Just update the scrollbar and return.
|
|
if (FullScrollbarsUpdate(false)) {
|
|
MarkDirtyIfSelect();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
bool needsInvalidation = false;
|
|
// Adjust our top row index.
|
|
if (aCount > 0) {
|
|
if (mTopRowIndex > aIndex) {
|
|
// Rows came in above us. Augment the top row index.
|
|
mTopRowIndex += aCount;
|
|
}
|
|
}
|
|
else if (aCount < 0) {
|
|
if (mTopRowIndex > aIndex+count-1) {
|
|
// No need to invalidate. The remove happened
|
|
// completely above us (offscreen).
|
|
mTopRowIndex -= count;
|
|
}
|
|
else if (mTopRowIndex >= aIndex) {
|
|
// This is a full-blown invalidate.
|
|
if (mTopRowIndex + mPageLength > mRowCount - 1) {
|
|
mTopRowIndex = std::max(0, mRowCount - 1 - mPageLength);
|
|
}
|
|
needsInvalidation = true;
|
|
}
|
|
}
|
|
|
|
if (FullScrollbarsUpdate(needsInvalidation)) {
|
|
MarkDirtyIfSelect();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::BeginUpdateBatch()
|
|
{
|
|
++mUpdateBatchNest;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::EndUpdateBatch()
|
|
{
|
|
NS_ASSERTION(mUpdateBatchNest > 0, "badly nested update batch");
|
|
|
|
if (--mUpdateBatchNest == 0) {
|
|
if (mView) {
|
|
Invalidate();
|
|
int32_t countBeforeUpdate = mRowCount;
|
|
mView->GetRowCount(&mRowCount);
|
|
if (countBeforeUpdate != mRowCount) {
|
|
if (mTopRowIndex + mPageLength > mRowCount - 1) {
|
|
mTopRowIndex = std::max(0, mRowCount - 1 - mPageLength);
|
|
}
|
|
FullScrollbarsUpdate(false);
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::PrefillPropertyArray(int32_t aRowIndex, nsTreeColumn* aCol)
|
|
{
|
|
NS_PRECONDITION(!aCol || aCol->GetFrame(), "invalid column passed");
|
|
mScratchArray.Clear();
|
|
|
|
// focus
|
|
if (mFocused)
|
|
mScratchArray.AppendElement(nsGkAtoms::focus);
|
|
|
|
// sort
|
|
bool sorted = false;
|
|
mView->IsSorted(&sorted);
|
|
if (sorted)
|
|
mScratchArray.AppendElement(nsGkAtoms::sorted);
|
|
|
|
// drag session
|
|
if (mSlots && mSlots->mIsDragging)
|
|
mScratchArray.AppendElement(nsGkAtoms::dragSession);
|
|
|
|
if (aRowIndex != -1) {
|
|
if (aRowIndex == mMouseOverRow)
|
|
mScratchArray.AppendElement(nsGkAtoms::hover);
|
|
|
|
nsCOMPtr<nsITreeSelection> selection;
|
|
mView->GetSelection(getter_AddRefs(selection));
|
|
|
|
if (selection) {
|
|
// selected
|
|
bool isSelected;
|
|
selection->IsSelected(aRowIndex, &isSelected);
|
|
if (isSelected)
|
|
mScratchArray.AppendElement(nsGkAtoms::selected);
|
|
|
|
// current
|
|
int32_t currentIndex;
|
|
selection->GetCurrentIndex(¤tIndex);
|
|
if (aRowIndex == currentIndex)
|
|
mScratchArray.AppendElement(nsGkAtoms::current);
|
|
|
|
// active
|
|
if (aCol) {
|
|
nsCOMPtr<nsITreeColumn> currentColumn;
|
|
selection->GetCurrentColumn(getter_AddRefs(currentColumn));
|
|
if (aCol == currentColumn)
|
|
mScratchArray.AppendElement(nsGkAtoms::active);
|
|
}
|
|
}
|
|
|
|
// container or leaf
|
|
bool isContainer = false;
|
|
mView->IsContainer(aRowIndex, &isContainer);
|
|
if (isContainer) {
|
|
mScratchArray.AppendElement(nsGkAtoms::container);
|
|
|
|
// open or closed
|
|
bool isOpen = false;
|
|
mView->IsContainerOpen(aRowIndex, &isOpen);
|
|
if (isOpen)
|
|
mScratchArray.AppendElement(nsGkAtoms::open);
|
|
else
|
|
mScratchArray.AppendElement(nsGkAtoms::closed);
|
|
}
|
|
else {
|
|
mScratchArray.AppendElement(nsGkAtoms::leaf);
|
|
}
|
|
|
|
// drop orientation
|
|
if (mSlots && mSlots->mDropAllowed && mSlots->mDropRow == aRowIndex) {
|
|
if (mSlots->mDropOrient == nsITreeView::DROP_BEFORE)
|
|
mScratchArray.AppendElement(nsGkAtoms::dropBefore);
|
|
else if (mSlots->mDropOrient == nsITreeView::DROP_ON)
|
|
mScratchArray.AppendElement(nsGkAtoms::dropOn);
|
|
else if (mSlots->mDropOrient == nsITreeView::DROP_AFTER)
|
|
mScratchArray.AppendElement(nsGkAtoms::dropAfter);
|
|
}
|
|
|
|
// odd or even
|
|
if (aRowIndex % 2)
|
|
mScratchArray.AppendElement(nsGkAtoms::odd);
|
|
else
|
|
mScratchArray.AppendElement(nsGkAtoms::even);
|
|
|
|
nsIContent* baseContent = GetBaseElement();
|
|
if (baseContent && baseContent->HasAttr(kNameSpaceID_None, nsGkAtoms::editing))
|
|
mScratchArray.AppendElement(nsGkAtoms::editing);
|
|
|
|
// multiple columns
|
|
if (mColumns->GetColumnAt(1))
|
|
mScratchArray.AppendElement(nsGkAtoms::multicol);
|
|
}
|
|
|
|
if (aCol) {
|
|
mScratchArray.AppendElement(aCol->GetAtom());
|
|
|
|
if (aCol->IsPrimary())
|
|
mScratchArray.AppendElement(nsGkAtoms::primary);
|
|
|
|
if (aCol->GetType() == nsITreeColumn::TYPE_CHECKBOX) {
|
|
mScratchArray.AppendElement(nsGkAtoms::checkbox);
|
|
|
|
if (aRowIndex != -1) {
|
|
nsAutoString value;
|
|
mView->GetCellValue(aRowIndex, aCol, value);
|
|
if (value.EqualsLiteral("true"))
|
|
mScratchArray.AppendElement(nsGkAtoms::checked);
|
|
}
|
|
}
|
|
else if (aCol->GetType() == nsITreeColumn::TYPE_PROGRESSMETER) {
|
|
mScratchArray.AppendElement(nsGkAtoms::progressmeter);
|
|
|
|
if (aRowIndex != -1) {
|
|
int32_t state;
|
|
mView->GetProgressMode(aRowIndex, aCol, &state);
|
|
if (state == nsITreeView::PROGRESS_NORMAL)
|
|
mScratchArray.AppendElement(nsGkAtoms::progressNormal);
|
|
else if (state == nsITreeView::PROGRESS_UNDETERMINED)
|
|
mScratchArray.AppendElement(nsGkAtoms::progressUndetermined);
|
|
}
|
|
}
|
|
|
|
// Read special properties from attributes on the column content node
|
|
if (aCol->mContent->AttrValueIs(kNameSpaceID_None,
|
|
nsGkAtoms::insertbefore,
|
|
nsGkAtoms::_true, eCaseMatters))
|
|
mScratchArray.AppendElement(nsGkAtoms::insertbefore);
|
|
if (aCol->mContent->AttrValueIs(kNameSpaceID_None,
|
|
nsGkAtoms::insertafter,
|
|
nsGkAtoms::_true, eCaseMatters))
|
|
mScratchArray.AppendElement(nsGkAtoms::insertafter);
|
|
}
|
|
}
|
|
|
|
nsITheme*
|
|
nsTreeBodyFrame::GetTwistyRect(int32_t aRowIndex,
|
|
nsTreeColumn* aColumn,
|
|
nsRect& aImageRect,
|
|
nsRect& aTwistyRect,
|
|
nsPresContext* aPresContext,
|
|
nsStyleContext* aTwistyContext)
|
|
{
|
|
// The twisty rect extends all the way to the end of the cell. This is incorrect. We need to
|
|
// determine the twisty rect's true width. This is done by examining the style context for
|
|
// a width first. If it has one, we use that. If it doesn't, we use the image's natural width.
|
|
// If the image hasn't loaded and if no width is specified, then we just bail. If there is
|
|
// a -moz-appearance involved, adjust the rect by the minimum widget size provided by
|
|
// the theme implementation.
|
|
aImageRect = GetImageSize(aRowIndex, aColumn, true, aTwistyContext);
|
|
if (aImageRect.height > aTwistyRect.height)
|
|
aImageRect.height = aTwistyRect.height;
|
|
if (aImageRect.width > aTwistyRect.width)
|
|
aImageRect.width = aTwistyRect.width;
|
|
else
|
|
aTwistyRect.width = aImageRect.width;
|
|
|
|
bool useTheme = false;
|
|
nsITheme *theme = nullptr;
|
|
const nsStyleDisplay* twistyDisplayData = aTwistyContext->StyleDisplay();
|
|
if (twistyDisplayData->mAppearance) {
|
|
theme = aPresContext->GetTheme();
|
|
if (theme && theme->ThemeSupportsWidget(aPresContext, nullptr, twistyDisplayData->mAppearance))
|
|
useTheme = true;
|
|
}
|
|
|
|
if (useTheme) {
|
|
LayoutDeviceIntSize minTwistySizePx;
|
|
bool canOverride = true;
|
|
theme->GetMinimumWidgetSize(aPresContext, this, twistyDisplayData->mAppearance,
|
|
&minTwistySizePx, &canOverride);
|
|
|
|
// GMWS() returns size in pixels, we need to convert it back to app units
|
|
nsSize minTwistySize;
|
|
minTwistySize.width = aPresContext->DevPixelsToAppUnits(minTwistySizePx.width);
|
|
minTwistySize.height = aPresContext->DevPixelsToAppUnits(minTwistySizePx.height);
|
|
|
|
if (aTwistyRect.width < minTwistySize.width || !canOverride)
|
|
aTwistyRect.width = minTwistySize.width;
|
|
}
|
|
|
|
return useTheme ? theme : nullptr;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::GetImage(int32_t aRowIndex, nsTreeColumn* aCol, bool aUseContext,
|
|
nsStyleContext* aStyleContext, bool& aAllowImageRegions, imgIContainer** aResult)
|
|
{
|
|
*aResult = nullptr;
|
|
|
|
nsAutoString imageSrc;
|
|
mView->GetImageSrc(aRowIndex, aCol, imageSrc);
|
|
RefPtr<imgRequestProxy> styleRequest;
|
|
if (!aUseContext && !imageSrc.IsEmpty()) {
|
|
aAllowImageRegions = false;
|
|
}
|
|
else {
|
|
// Obtain the URL from the style context.
|
|
aAllowImageRegions = true;
|
|
styleRequest = aStyleContext->StyleList()->GetListStyleImage();
|
|
if (!styleRequest)
|
|
return NS_OK;
|
|
nsCOMPtr<nsIURI> uri;
|
|
styleRequest->GetURI(getter_AddRefs(uri));
|
|
nsAutoCString spec;
|
|
uri->GetSpec(spec);
|
|
CopyUTF8toUTF16(spec, imageSrc);
|
|
}
|
|
|
|
// Look the image up in our cache.
|
|
nsTreeImageCacheEntry entry;
|
|
if (mImageCache.Get(imageSrc, &entry)) {
|
|
// Find out if the image has loaded.
|
|
uint32_t status;
|
|
imgIRequest *imgReq = entry.request;
|
|
imgReq->GetImageStatus(&status);
|
|
imgReq->GetImage(aResult); // We hand back the image here. The GetImage call addrefs *aResult.
|
|
bool animated = true; // Assuming animated is the safe option
|
|
|
|
// We can only call GetAnimated if we're decoded
|
|
if (*aResult && (status & imgIRequest::STATUS_DECODE_COMPLETE))
|
|
(*aResult)->GetAnimated(&animated);
|
|
|
|
if ((!(status & imgIRequest::STATUS_LOAD_COMPLETE)) || animated) {
|
|
// We either aren't done loading, or we're animating. Add our row as a listener for invalidations.
|
|
nsCOMPtr<imgINotificationObserver> obs;
|
|
imgReq->GetNotificationObserver(getter_AddRefs(obs));
|
|
|
|
if (obs) {
|
|
static_cast<nsTreeImageListener*> (obs.get())->AddCell(aRowIndex, aCol);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
if (!*aResult) {
|
|
// Create a new nsTreeImageListener object and pass it our row and column
|
|
// information.
|
|
nsTreeImageListener* listener = new nsTreeImageListener(this);
|
|
if (!listener)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
if (!mCreatedListeners.PutEntry(listener)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
listener->AddCell(aRowIndex, aCol);
|
|
nsCOMPtr<imgINotificationObserver> imgNotificationObserver = listener;
|
|
|
|
RefPtr<imgRequestProxy> imageRequest;
|
|
if (styleRequest) {
|
|
styleRequest->Clone(imgNotificationObserver, getter_AddRefs(imageRequest));
|
|
} else {
|
|
nsIDocument* doc = mContent->GetComposedDoc();
|
|
if (!doc)
|
|
// The page is currently being torn down. Why bother.
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsIURI> baseURI = mContent->GetBaseURI();
|
|
|
|
nsCOMPtr<nsIURI> srcURI;
|
|
nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(srcURI),
|
|
imageSrc,
|
|
doc,
|
|
baseURI);
|
|
if (!srcURI)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// XXXbz what's the origin principal for this stuff that comes from our
|
|
// view? I guess we should assume that it's the node's principal...
|
|
if (nsContentUtils::CanLoadImage(srcURI, mContent, doc,
|
|
mContent->NodePrincipal())) {
|
|
nsresult rv = nsContentUtils::LoadImage(srcURI,
|
|
doc,
|
|
mContent->NodePrincipal(),
|
|
doc->GetDocumentURI(),
|
|
doc->GetReferrerPolicy(),
|
|
imgNotificationObserver,
|
|
nsIRequest::LOAD_NORMAL,
|
|
EmptyString(),
|
|
getter_AddRefs(imageRequest));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
}
|
|
}
|
|
listener->UnsuppressInvalidation();
|
|
|
|
if (!imageRequest)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// We don't want discarding/decode-on-draw for xul images
|
|
imageRequest->StartDecoding();
|
|
imageRequest->LockImage();
|
|
|
|
// In a case it was already cached.
|
|
imageRequest->GetImage(aResult);
|
|
nsTreeImageCacheEntry cacheEntry(imageRequest, imgNotificationObserver);
|
|
mImageCache.Put(imageSrc, cacheEntry);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsRect nsTreeBodyFrame::GetImageSize(int32_t aRowIndex, nsTreeColumn* aCol, bool aUseContext,
|
|
nsStyleContext* aStyleContext)
|
|
{
|
|
// XXX We should respond to visibility rules for collapsed vs. hidden.
|
|
|
|
// This method returns the width of the twisty INCLUDING borders and padding.
|
|
// It first checks the style context for a width. If none is found, it tries to
|
|
// use the default image width for the twisty. If no image is found, it defaults
|
|
// to border+padding.
|
|
nsRect r(0,0,0,0);
|
|
nsMargin bp(0,0,0,0);
|
|
GetBorderPadding(aStyleContext, bp);
|
|
r.Inflate(bp);
|
|
|
|
// Now r contains our border+padding info. We now need to get our width and
|
|
// height.
|
|
bool needWidth = false;
|
|
bool needHeight = false;
|
|
|
|
// We have to load image even though we already have a size.
|
|
// Don't change this, otherwise things start to go crazy.
|
|
bool useImageRegion = true;
|
|
nsCOMPtr<imgIContainer> image;
|
|
GetImage(aRowIndex, aCol, aUseContext, aStyleContext, useImageRegion, getter_AddRefs(image));
|
|
|
|
const nsStylePosition* myPosition = aStyleContext->StylePosition();
|
|
const nsStyleList* myList = aStyleContext->StyleList();
|
|
|
|
if (useImageRegion) {
|
|
r.x += myList->mImageRegion.x;
|
|
r.y += myList->mImageRegion.y;
|
|
}
|
|
|
|
if (myPosition->mWidth.GetUnit() == eStyleUnit_Coord) {
|
|
int32_t val = myPosition->mWidth.GetCoordValue();
|
|
r.width += val;
|
|
}
|
|
else if (useImageRegion && myList->mImageRegion.width > 0)
|
|
r.width += myList->mImageRegion.width;
|
|
else
|
|
needWidth = true;
|
|
|
|
if (myPosition->mHeight.GetUnit() == eStyleUnit_Coord) {
|
|
int32_t val = myPosition->mHeight.GetCoordValue();
|
|
r.height += val;
|
|
}
|
|
else if (useImageRegion && myList->mImageRegion.height > 0)
|
|
r.height += myList->mImageRegion.height;
|
|
else
|
|
needHeight = true;
|
|
|
|
if (image) {
|
|
if (needWidth || needHeight) {
|
|
// Get the natural image size.
|
|
|
|
if (needWidth) {
|
|
// Get the size from the image.
|
|
nscoord width;
|
|
image->GetWidth(&width);
|
|
r.width += nsPresContext::CSSPixelsToAppUnits(width);
|
|
}
|
|
|
|
if (needHeight) {
|
|
nscoord height;
|
|
image->GetHeight(&height);
|
|
r.height += nsPresContext::CSSPixelsToAppUnits(height);
|
|
}
|
|
}
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
// GetImageDestSize returns the destination size of the image.
|
|
// The width and height do not include borders and padding.
|
|
// The width and height have not been adjusted to fit in the row height
|
|
// or cell width.
|
|
// The width and height reflect the destination size specified in CSS,
|
|
// or the image region specified in CSS, or the natural size of the
|
|
// image.
|
|
// If only the destination width has been specified in CSS, the height is
|
|
// calculated to maintain the aspect ratio of the image.
|
|
// If only the destination height has been specified in CSS, the width is
|
|
// calculated to maintain the aspect ratio of the image.
|
|
nsSize
|
|
nsTreeBodyFrame::GetImageDestSize(nsStyleContext* aStyleContext,
|
|
bool useImageRegion,
|
|
imgIContainer* image)
|
|
{
|
|
nsSize size(0,0);
|
|
|
|
// We need to get the width and height.
|
|
bool needWidth = false;
|
|
bool needHeight = false;
|
|
|
|
// Get the style position to see if the CSS has specified the
|
|
// destination width/height.
|
|
const nsStylePosition* myPosition = aStyleContext->StylePosition();
|
|
|
|
if (myPosition->mWidth.GetUnit() == eStyleUnit_Coord) {
|
|
// CSS has specified the destination width.
|
|
size.width = myPosition->mWidth.GetCoordValue();
|
|
}
|
|
else {
|
|
// We'll need to get the width of the image/region.
|
|
needWidth = true;
|
|
}
|
|
|
|
if (myPosition->mHeight.GetUnit() == eStyleUnit_Coord) {
|
|
// CSS has specified the destination height.
|
|
size.height = myPosition->mHeight.GetCoordValue();
|
|
}
|
|
else {
|
|
// We'll need to get the height of the image/region.
|
|
needHeight = true;
|
|
}
|
|
|
|
if (needWidth || needHeight) {
|
|
// We need to get the size of the image/region.
|
|
nsSize imageSize(0,0);
|
|
|
|
const nsStyleList* myList = aStyleContext->StyleList();
|
|
|
|
if (useImageRegion && myList->mImageRegion.width > 0) {
|
|
// CSS has specified an image region.
|
|
// Use the width of the image region.
|
|
imageSize.width = myList->mImageRegion.width;
|
|
}
|
|
else if (image) {
|
|
nscoord width;
|
|
image->GetWidth(&width);
|
|
imageSize.width = nsPresContext::CSSPixelsToAppUnits(width);
|
|
}
|
|
|
|
if (useImageRegion && myList->mImageRegion.height > 0) {
|
|
// CSS has specified an image region.
|
|
// Use the height of the image region.
|
|
imageSize.height = myList->mImageRegion.height;
|
|
}
|
|
else if (image) {
|
|
nscoord height;
|
|
image->GetHeight(&height);
|
|
imageSize.height = nsPresContext::CSSPixelsToAppUnits(height);
|
|
}
|
|
|
|
if (needWidth) {
|
|
if (!needHeight && imageSize.height != 0) {
|
|
// The CSS specified the destination height, but not the destination
|
|
// width. We need to calculate the width so that we maintain the
|
|
// image's aspect ratio.
|
|
size.width = imageSize.width * size.height / imageSize.height;
|
|
}
|
|
else {
|
|
size.width = imageSize.width;
|
|
}
|
|
}
|
|
|
|
if (needHeight) {
|
|
if (!needWidth && imageSize.width != 0) {
|
|
// The CSS specified the destination width, but not the destination
|
|
// height. We need to calculate the height so that we maintain the
|
|
// image's aspect ratio.
|
|
size.height = imageSize.height * size.width / imageSize.width;
|
|
}
|
|
else {
|
|
size.height = imageSize.height;
|
|
}
|
|
}
|
|
}
|
|
|
|
return size;
|
|
}
|
|
|
|
// GetImageSourceRect returns the source rectangle of the image to be
|
|
// displayed.
|
|
// The width and height reflect the image region specified in CSS, or
|
|
// the natural size of the image.
|
|
// The width and height do not include borders and padding.
|
|
// The width and height do not reflect the destination size specified
|
|
// in CSS.
|
|
nsRect
|
|
nsTreeBodyFrame::GetImageSourceRect(nsStyleContext* aStyleContext,
|
|
bool useImageRegion,
|
|
imgIContainer* image)
|
|
{
|
|
nsRect r(0,0,0,0);
|
|
|
|
const nsStyleList* myList = aStyleContext->StyleList();
|
|
|
|
if (useImageRegion &&
|
|
(myList->mImageRegion.width > 0 || myList->mImageRegion.height > 0)) {
|
|
// CSS has specified an image region.
|
|
r = myList->mImageRegion;
|
|
}
|
|
else if (image) {
|
|
// Use the actual image size.
|
|
nscoord coord;
|
|
image->GetWidth(&coord);
|
|
r.width = nsPresContext::CSSPixelsToAppUnits(coord);
|
|
image->GetHeight(&coord);
|
|
r.height = nsPresContext::CSSPixelsToAppUnits(coord);
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
int32_t nsTreeBodyFrame::GetRowHeight()
|
|
{
|
|
// Look up the correct height. It is equal to the specified height
|
|
// + the specified margins.
|
|
mScratchArray.Clear();
|
|
nsStyleContext* rowContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreerow);
|
|
if (rowContext) {
|
|
const nsStylePosition* myPosition = rowContext->StylePosition();
|
|
|
|
nscoord minHeight = 0;
|
|
if (myPosition->mMinHeight.GetUnit() == eStyleUnit_Coord)
|
|
minHeight = myPosition->mMinHeight.GetCoordValue();
|
|
|
|
nscoord height = 0;
|
|
if (myPosition->mHeight.GetUnit() == eStyleUnit_Coord)
|
|
height = myPosition->mHeight.GetCoordValue();
|
|
|
|
if (height < minHeight)
|
|
height = minHeight;
|
|
|
|
if (height > 0) {
|
|
height = nsPresContext::AppUnitsToIntCSSPixels(height);
|
|
height += height % 2;
|
|
height = nsPresContext::CSSPixelsToAppUnits(height);
|
|
|
|
// XXX Check box-sizing to determine if border/padding should augment the height
|
|
// Inflate the height by our margins.
|
|
nsRect rowRect(0,0,0,height);
|
|
nsMargin rowMargin;
|
|
rowContext->StyleMargin()->GetMargin(rowMargin);
|
|
rowRect.Inflate(rowMargin);
|
|
height = rowRect.height;
|
|
return height;
|
|
}
|
|
}
|
|
|
|
return nsPresContext::CSSPixelsToAppUnits(18); // As good a default as any.
|
|
}
|
|
|
|
int32_t nsTreeBodyFrame::GetIndentation()
|
|
{
|
|
// Look up the correct indentation. It is equal to the specified indentation width.
|
|
mScratchArray.Clear();
|
|
nsStyleContext* indentContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreeindentation);
|
|
if (indentContext) {
|
|
const nsStylePosition* myPosition = indentContext->StylePosition();
|
|
if (myPosition->mWidth.GetUnit() == eStyleUnit_Coord) {
|
|
nscoord val = myPosition->mWidth.GetCoordValue();
|
|
return val;
|
|
}
|
|
}
|
|
|
|
return nsPresContext::CSSPixelsToAppUnits(16); // As good a default as any.
|
|
}
|
|
|
|
void nsTreeBodyFrame::CalcInnerBox()
|
|
{
|
|
mInnerBox.SetRect(0, 0, mRect.width, mRect.height);
|
|
AdjustForBorderPadding(mStyleContext, mInnerBox);
|
|
}
|
|
|
|
nscoord
|
|
nsTreeBodyFrame::CalcHorzWidth(const ScrollParts& aParts)
|
|
{
|
|
// Compute the adjustment to the last column. This varies depending on the
|
|
// visibility of the columnpicker and the scrollbar.
|
|
if (aParts.mColumnsFrame)
|
|
mAdjustWidth = mRect.width - aParts.mColumnsFrame->GetRect().width;
|
|
else
|
|
mAdjustWidth = 0;
|
|
|
|
nscoord width = 0;
|
|
|
|
// We calculate this from the scrollable frame, so that it
|
|
// properly covers all contingencies of what could be
|
|
// scrollable (columns, body, etc...)
|
|
|
|
if (aParts.mColumnsScrollFrame) {
|
|
width = aParts.mColumnsScrollFrame->GetScrollRange().width +
|
|
aParts.mColumnsScrollFrame->GetScrollPortRect().width;
|
|
}
|
|
|
|
// If no horz scrolling periphery is present, then just return our width
|
|
if (width == 0)
|
|
width = mRect.width;
|
|
|
|
return width;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::GetCursor(const nsPoint& aPoint,
|
|
nsIFrame::Cursor& aCursor)
|
|
{
|
|
// Check the GetScriptHandlingObject so we don't end up running code when
|
|
// the document is a zombie.
|
|
bool dummy;
|
|
if (mView && GetContent()->GetComposedDoc()->GetScriptHandlingObject(dummy)) {
|
|
int32_t row;
|
|
nsTreeColumn* col;
|
|
nsIAtom* child;
|
|
GetCellAt(aPoint.x, aPoint.y, &row, &col, &child);
|
|
|
|
if (child) {
|
|
// Our scratch array is already prefilled.
|
|
nsStyleContext* childContext = GetPseudoStyleContext(child);
|
|
|
|
FillCursorInformationFromStyle(childContext->StyleUserInterface(),
|
|
aCursor);
|
|
if (aCursor.mCursor == NS_STYLE_CURSOR_AUTO)
|
|
aCursor.mCursor = NS_STYLE_CURSOR_DEFAULT;
|
|
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
return nsLeafBoxFrame::GetCursor(aPoint, aCursor);
|
|
}
|
|
|
|
static uint32_t GetDropEffect(WidgetGUIEvent* aEvent)
|
|
{
|
|
NS_ASSERTION(aEvent->mClass == eDragEventClass, "wrong event type");
|
|
WidgetDragEvent* dragEvent = aEvent->AsDragEvent();
|
|
nsContentUtils::SetDataTransferInEvent(dragEvent);
|
|
|
|
uint32_t action = 0;
|
|
if (dragEvent->dataTransfer)
|
|
dragEvent->dataTransfer->GetDropEffectInt(&action);
|
|
return action;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::HandleEvent(nsPresContext* aPresContext,
|
|
WidgetGUIEvent* aEvent,
|
|
nsEventStatus* aEventStatus)
|
|
{
|
|
if (aEvent->mMessage == eMouseOver || aEvent->mMessage == eMouseMove) {
|
|
nsPoint pt = nsLayoutUtils::GetEventCoordinatesRelativeTo(aEvent, this);
|
|
int32_t xTwips = pt.x - mInnerBox.x;
|
|
int32_t yTwips = pt.y - mInnerBox.y;
|
|
int32_t newrow = GetRowAt(xTwips, yTwips);
|
|
if (mMouseOverRow != newrow) {
|
|
// redraw the old and the new row
|
|
if (mMouseOverRow != -1)
|
|
InvalidateRow(mMouseOverRow);
|
|
mMouseOverRow = newrow;
|
|
if (mMouseOverRow != -1)
|
|
InvalidateRow(mMouseOverRow);
|
|
}
|
|
} else if (aEvent->mMessage == eMouseOut) {
|
|
if (mMouseOverRow != -1) {
|
|
InvalidateRow(mMouseOverRow);
|
|
mMouseOverRow = -1;
|
|
}
|
|
} else if (aEvent->mMessage == eDragEnter) {
|
|
if (!mSlots)
|
|
mSlots = new Slots();
|
|
|
|
// Cache several things we'll need throughout the course of our work. These
|
|
// will all get released on a drag exit.
|
|
|
|
if (mSlots->mTimer) {
|
|
mSlots->mTimer->Cancel();
|
|
mSlots->mTimer = nullptr;
|
|
}
|
|
|
|
// Cache the drag session.
|
|
mSlots->mIsDragging = true;
|
|
mSlots->mDropRow = -1;
|
|
mSlots->mDropOrient = -1;
|
|
mSlots->mDragAction = GetDropEffect(aEvent);
|
|
} else if (aEvent->mMessage == eDragOver) {
|
|
// The mouse is hovering over this tree. If we determine things are
|
|
// different from the last time, invalidate the drop feedback at the old
|
|
// position, query the view to see if the current location is droppable,
|
|
// and then invalidate the drop feedback at the new location if it is.
|
|
// The mouse may or may not have changed position from the last time
|
|
// we were called, so optimize out a lot of the extra notifications by
|
|
// checking if anything changed first. For drop feedback we use drop,
|
|
// dropBefore and dropAfter property.
|
|
|
|
if (!mView || !mSlots)
|
|
return NS_OK;
|
|
|
|
// Save last values, we will need them.
|
|
int32_t lastDropRow = mSlots->mDropRow;
|
|
int16_t lastDropOrient = mSlots->mDropOrient;
|
|
#ifndef XP_MACOSX
|
|
int16_t lastScrollLines = mSlots->mScrollLines;
|
|
#endif
|
|
|
|
// Find out the current drag action
|
|
uint32_t lastDragAction = mSlots->mDragAction;
|
|
mSlots->mDragAction = GetDropEffect(aEvent);
|
|
|
|
// Compute the row mouse is over and the above/below/on state.
|
|
// Below we'll use this to see if anything changed.
|
|
// Also check if we want to auto-scroll.
|
|
ComputeDropPosition(aEvent, &mSlots->mDropRow, &mSlots->mDropOrient, &mSlots->mScrollLines);
|
|
|
|
// While we're here, handle tracking of scrolling during a drag.
|
|
if (mSlots->mScrollLines) {
|
|
if (mSlots->mDropAllowed) {
|
|
// Invalidate primary cell at old location.
|
|
mSlots->mDropAllowed = false;
|
|
InvalidateDropFeedback(lastDropRow, lastDropOrient);
|
|
}
|
|
#ifdef XP_MACOSX
|
|
ScrollByLines(mSlots->mScrollLines);
|
|
#else
|
|
if (!lastScrollLines) {
|
|
// Cancel any previously initialized timer.
|
|
if (mSlots->mTimer) {
|
|
mSlots->mTimer->Cancel();
|
|
mSlots->mTimer = nullptr;
|
|
}
|
|
|
|
// Set a timer to trigger the tree scrolling.
|
|
CreateTimer(LookAndFeel::eIntID_TreeLazyScrollDelay,
|
|
LazyScrollCallback, nsITimer::TYPE_ONE_SHOT,
|
|
getter_AddRefs(mSlots->mTimer));
|
|
}
|
|
#endif
|
|
// Bail out to prevent spring loaded timer and feedback line settings.
|
|
return NS_OK;
|
|
}
|
|
|
|
// If changed from last time, invalidate primary cell at the old location and if allowed,
|
|
// invalidate primary cell at the new location. If nothing changed, just bail.
|
|
if (mSlots->mDropRow != lastDropRow ||
|
|
mSlots->mDropOrient != lastDropOrient ||
|
|
mSlots->mDragAction != lastDragAction) {
|
|
|
|
// Invalidate row at the old location.
|
|
if (mSlots->mDropAllowed) {
|
|
mSlots->mDropAllowed = false;
|
|
InvalidateDropFeedback(lastDropRow, lastDropOrient);
|
|
}
|
|
|
|
if (mSlots->mTimer) {
|
|
// Timer is active but for a different row than the current one, kill it.
|
|
mSlots->mTimer->Cancel();
|
|
mSlots->mTimer = nullptr;
|
|
}
|
|
|
|
if (mSlots->mDropRow >= 0) {
|
|
if (!mSlots->mTimer && mSlots->mDropOrient == nsITreeView::DROP_ON) {
|
|
// Either there wasn't a timer running or it was just killed above.
|
|
// If over a folder, start up a timer to open the folder.
|
|
bool isContainer = false;
|
|
mView->IsContainer(mSlots->mDropRow, &isContainer);
|
|
if (isContainer) {
|
|
bool isOpen = false;
|
|
mView->IsContainerOpen(mSlots->mDropRow, &isOpen);
|
|
if (!isOpen) {
|
|
// This node isn't expanded, set a timer to expand it.
|
|
CreateTimer(LookAndFeel::eIntID_TreeOpenDelay,
|
|
OpenCallback, nsITimer::TYPE_ONE_SHOT,
|
|
getter_AddRefs(mSlots->mTimer));
|
|
}
|
|
}
|
|
}
|
|
|
|
// The dataTransfer was initialized by the call to GetDropEffect above.
|
|
bool canDropAtNewLocation = false;
|
|
mView->CanDrop(mSlots->mDropRow, mSlots->mDropOrient,
|
|
aEvent->AsDragEvent()->dataTransfer,
|
|
&canDropAtNewLocation);
|
|
|
|
if (canDropAtNewLocation) {
|
|
// Invalidate row at the new location.
|
|
mSlots->mDropAllowed = canDropAtNewLocation;
|
|
InvalidateDropFeedback(mSlots->mDropRow, mSlots->mDropOrient);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Indicate that the drop is allowed by preventing the default behaviour.
|
|
if (mSlots->mDropAllowed)
|
|
*aEventStatus = nsEventStatus_eConsumeNoDefault;
|
|
} else if (aEvent->mMessage == eDrop) {
|
|
// this event was meant for another frame, so ignore it
|
|
if (!mSlots)
|
|
return NS_OK;
|
|
|
|
// Tell the view where the drop happened.
|
|
|
|
// Remove the drop folder and all its parents from the array.
|
|
int32_t parentIndex;
|
|
nsresult rv = mView->GetParentIndex(mSlots->mDropRow, &parentIndex);
|
|
while (NS_SUCCEEDED(rv) && parentIndex >= 0) {
|
|
mSlots->mArray.RemoveElement(parentIndex);
|
|
rv = mView->GetParentIndex(parentIndex, &parentIndex);
|
|
}
|
|
|
|
NS_ASSERTION(aEvent->mClass == eDragEventClass, "wrong event type");
|
|
WidgetDragEvent* dragEvent = aEvent->AsDragEvent();
|
|
nsContentUtils::SetDataTransferInEvent(dragEvent);
|
|
|
|
mView->Drop(mSlots->mDropRow, mSlots->mDropOrient, dragEvent->dataTransfer);
|
|
mSlots->mDropRow = -1;
|
|
mSlots->mDropOrient = -1;
|
|
mSlots->mIsDragging = false;
|
|
*aEventStatus = nsEventStatus_eConsumeNoDefault; // already handled the drop
|
|
} else if (aEvent->mMessage == eDragExit) {
|
|
// this event was meant for another frame, so ignore it
|
|
if (!mSlots)
|
|
return NS_OK;
|
|
|
|
// Clear out all our tracking vars.
|
|
|
|
if (mSlots->mDropAllowed) {
|
|
mSlots->mDropAllowed = false;
|
|
InvalidateDropFeedback(mSlots->mDropRow, mSlots->mDropOrient);
|
|
}
|
|
else
|
|
mSlots->mDropAllowed = false;
|
|
mSlots->mIsDragging = false;
|
|
mSlots->mScrollLines = 0;
|
|
// If a drop is occuring, the exit event will fire just before the drop
|
|
// event, so don't reset mDropRow or mDropOrient as these fields are used
|
|
// by the drop event.
|
|
if (mSlots->mTimer) {
|
|
mSlots->mTimer->Cancel();
|
|
mSlots->mTimer = nullptr;
|
|
}
|
|
|
|
if (!mSlots->mArray.IsEmpty()) {
|
|
// Close all spring loaded folders except the drop folder.
|
|
CreateTimer(LookAndFeel::eIntID_TreeCloseDelay,
|
|
CloseCallback, nsITimer::TYPE_ONE_SHOT,
|
|
getter_AddRefs(mSlots->mTimer));
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
class nsDisplayTreeBody final : public nsDisplayItem {
|
|
public:
|
|
nsDisplayTreeBody(nsDisplayListBuilder* aBuilder, nsFrame* aFrame) :
|
|
nsDisplayItem(aBuilder, aFrame),
|
|
mDisableSubpixelAA(false) {
|
|
MOZ_COUNT_CTOR(nsDisplayTreeBody);
|
|
}
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
virtual ~nsDisplayTreeBody() {
|
|
MOZ_COUNT_DTOR(nsDisplayTreeBody);
|
|
}
|
|
#endif
|
|
|
|
nsDisplayItemGeometry* AllocateGeometry(nsDisplayListBuilder* aBuilder) override
|
|
{
|
|
return new nsDisplayItemGenericImageGeometry(this, aBuilder);
|
|
}
|
|
|
|
void ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayItemGeometry* aGeometry,
|
|
nsRegion *aInvalidRegion) override
|
|
{
|
|
auto geometry =
|
|
static_cast<const nsDisplayItemGenericImageGeometry*>(aGeometry);
|
|
|
|
if (aBuilder->ShouldSyncDecodeImages() &&
|
|
geometry->ShouldInvalidateToSyncDecodeImages()) {
|
|
bool snap;
|
|
aInvalidRegion->Or(*aInvalidRegion, GetBounds(aBuilder, &snap));
|
|
}
|
|
|
|
nsDisplayItem::ComputeInvalidationRegion(aBuilder, aGeometry, aInvalidRegion);
|
|
}
|
|
|
|
virtual void Paint(nsDisplayListBuilder* aBuilder,
|
|
nsRenderingContext* aCtx) override
|
|
{
|
|
gfxContext* ctx = aCtx->ThebesContext();
|
|
gfxContextAutoDisableSubpixelAntialiasing disable(ctx, mDisableSubpixelAA);
|
|
|
|
DrawResult result = static_cast<nsTreeBodyFrame*>(mFrame)
|
|
->PaintTreeBody(*aCtx, mVisibleRect, ToReferenceFrame());
|
|
|
|
nsDisplayItemGenericImageGeometry::UpdateDrawResult(this, result);
|
|
}
|
|
|
|
NS_DISPLAY_DECL_NAME("XULTreeBody", TYPE_XUL_TREE_BODY)
|
|
|
|
virtual nsRect GetComponentAlphaBounds(nsDisplayListBuilder* aBuilder) override
|
|
{
|
|
bool snap;
|
|
return GetBounds(aBuilder, &snap);
|
|
}
|
|
virtual void DisableComponentAlpha() override {
|
|
mDisableSubpixelAA = true;
|
|
}
|
|
|
|
bool mDisableSubpixelAA;
|
|
};
|
|
|
|
// Painting routines
|
|
void
|
|
nsTreeBodyFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aDirtyRect,
|
|
const nsDisplayListSet& aLists)
|
|
{
|
|
// REVIEW: why did we paint if we were collapsed? that makes no sense!
|
|
if (!IsVisibleForPainting(aBuilder))
|
|
return; // We're invisible. Don't paint.
|
|
|
|
// Handles painting our background, border, and outline.
|
|
nsLeafBoxFrame::BuildDisplayList(aBuilder, aDirtyRect, aLists);
|
|
|
|
// Bail out now if there's no view or we can't run script because the
|
|
// document is a zombie
|
|
if (!mView || !GetContent ()->GetComposedDoc()->GetWindow())
|
|
return;
|
|
|
|
aLists.Content()->AppendNewToTop(new (aBuilder)
|
|
nsDisplayTreeBody(aBuilder, this));
|
|
}
|
|
|
|
DrawResult
|
|
nsTreeBodyFrame::PaintTreeBody(nsRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect, nsPoint aPt)
|
|
{
|
|
// Update our available height and our page count.
|
|
CalcInnerBox();
|
|
|
|
DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
|
|
gfxContext* gfx = aRenderingContext.ThebesContext();
|
|
|
|
gfx->Save();
|
|
gfx->Clip(NSRectToSnappedRect(mInnerBox + aPt,
|
|
PresContext()->AppUnitsPerDevPixel(),
|
|
*drawTarget));
|
|
int32_t oldPageCount = mPageLength;
|
|
if (!mHasFixedRowCount)
|
|
mPageLength = mInnerBox.height/mRowHeight;
|
|
|
|
if (oldPageCount != mPageLength || mHorzWidth != CalcHorzWidth(GetScrollParts())) {
|
|
// Schedule a ResizeReflow that will update our info properly.
|
|
PresContext()->PresShell()->
|
|
FrameNeedsReflow(this, nsIPresShell::eResize, NS_FRAME_IS_DIRTY);
|
|
}
|
|
#ifdef DEBUG
|
|
int32_t rowCount = mRowCount;
|
|
mView->GetRowCount(&rowCount);
|
|
NS_WARN_IF_FALSE(mRowCount == rowCount, "row count changed unexpectedly");
|
|
#endif
|
|
|
|
DrawResult result = DrawResult::SUCCESS;
|
|
|
|
// Loop through our columns and paint them (e.g., for sorting). This is only
|
|
// relevant when painting backgrounds, since columns contain no content. Content
|
|
// is contained in the rows.
|
|
for (nsTreeColumn* currCol = mColumns->GetFirstColumn(); currCol;
|
|
currCol = currCol->GetNext()) {
|
|
nsRect colRect;
|
|
nsresult rv = currCol->GetRect(this, mInnerBox.y, mInnerBox.height,
|
|
&colRect);
|
|
// Don't paint hidden columns.
|
|
if (NS_FAILED(rv) || colRect.width == 0) continue;
|
|
|
|
if (OffsetForHorzScroll(colRect, false)) {
|
|
nsRect dirtyRect;
|
|
colRect += aPt;
|
|
if (dirtyRect.IntersectRect(aDirtyRect, colRect)) {
|
|
result &=
|
|
PaintColumn(currCol, colRect, PresContext(), aRenderingContext, aDirtyRect);
|
|
}
|
|
}
|
|
}
|
|
// Loop through our on-screen rows.
|
|
for (int32_t i = mTopRowIndex; i < mRowCount && i <= mTopRowIndex+mPageLength; i++) {
|
|
nsRect rowRect(mInnerBox.x, mInnerBox.y+mRowHeight*(i-mTopRowIndex), mInnerBox.width, mRowHeight);
|
|
nsRect dirtyRect;
|
|
if (dirtyRect.IntersectRect(aDirtyRect, rowRect + aPt) &&
|
|
rowRect.y < (mInnerBox.y+mInnerBox.height)) {
|
|
result &=
|
|
PaintRow(i, rowRect + aPt, PresContext(), aRenderingContext, aDirtyRect, aPt);
|
|
}
|
|
}
|
|
|
|
if (mSlots && mSlots->mDropAllowed && (mSlots->mDropOrient == nsITreeView::DROP_BEFORE ||
|
|
mSlots->mDropOrient == nsITreeView::DROP_AFTER)) {
|
|
nscoord yPos = mInnerBox.y + mRowHeight * (mSlots->mDropRow - mTopRowIndex) - mRowHeight / 2;
|
|
nsRect feedbackRect(mInnerBox.x, yPos, mInnerBox.width, mRowHeight);
|
|
if (mSlots->mDropOrient == nsITreeView::DROP_AFTER)
|
|
feedbackRect.y += mRowHeight;
|
|
|
|
nsRect dirtyRect;
|
|
feedbackRect += aPt;
|
|
if (dirtyRect.IntersectRect(aDirtyRect, feedbackRect)) {
|
|
result &=
|
|
PaintDropFeedback(feedbackRect, PresContext(), aRenderingContext,
|
|
aDirtyRect, aPt);
|
|
}
|
|
}
|
|
gfx->Restore();
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
|
|
DrawResult
|
|
nsTreeBodyFrame::PaintColumn(nsTreeColumn* aColumn,
|
|
const nsRect& aColumnRect,
|
|
nsPresContext* aPresContext,
|
|
nsRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect)
|
|
{
|
|
NS_PRECONDITION(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
// Now obtain the properties for our cell.
|
|
PrefillPropertyArray(-1, aColumn);
|
|
nsAutoString properties;
|
|
mView->GetColumnProperties(aColumn, properties);
|
|
nsTreeUtils::TokenizeProperties(properties, mScratchArray);
|
|
|
|
// Resolve style for the column. It contains all the info we need to lay ourselves
|
|
// out and to paint.
|
|
nsStyleContext* colContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreecolumn);
|
|
|
|
// Obtain the margins for the cell and then deflate our rect by that
|
|
// amount. The cell is assumed to be contained within the deflated rect.
|
|
nsRect colRect(aColumnRect);
|
|
nsMargin colMargin;
|
|
colContext->StyleMargin()->GetMargin(colMargin);
|
|
colRect.Deflate(colMargin);
|
|
|
|
return PaintBackgroundLayer(colContext, aPresContext, aRenderingContext,
|
|
colRect, aDirtyRect);
|
|
}
|
|
|
|
DrawResult
|
|
nsTreeBodyFrame::PaintRow(int32_t aRowIndex,
|
|
const nsRect& aRowRect,
|
|
nsPresContext* aPresContext,
|
|
nsRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nsPoint aPt)
|
|
{
|
|
// We have been given a rect for our row. We treat this row like a full-blown
|
|
// frame, meaning that it can have borders, margins, padding, and a background.
|
|
|
|
// Without a view, we have no data. Check for this up front.
|
|
if (!mView) {
|
|
return DrawResult::SUCCESS;
|
|
}
|
|
|
|
nsresult rv;
|
|
|
|
// Now obtain the properties for our row.
|
|
// XXX Automatically fill in the following props: open, closed, container, leaf, selected, focused
|
|
PrefillPropertyArray(aRowIndex, nullptr);
|
|
|
|
nsAutoString properties;
|
|
mView->GetRowProperties(aRowIndex, properties);
|
|
nsTreeUtils::TokenizeProperties(properties, mScratchArray);
|
|
|
|
// Resolve style for the row. It contains all the info we need to lay ourselves
|
|
// out and to paint.
|
|
nsStyleContext* rowContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreerow);
|
|
|
|
// Obtain the margins for the row and then deflate our rect by that
|
|
// amount. The row is assumed to be contained within the deflated rect.
|
|
nsRect rowRect(aRowRect);
|
|
nsMargin rowMargin;
|
|
rowContext->StyleMargin()->GetMargin(rowMargin);
|
|
rowRect.Deflate(rowMargin);
|
|
|
|
DrawResult result = DrawResult::SUCCESS;
|
|
|
|
// Paint our borders and background for our row rect.
|
|
// If a -moz-appearance is provided, use theme drawing only if the current row
|
|
// is not selected (since we draw the selection as part of drawing the background).
|
|
bool useTheme = false;
|
|
nsITheme *theme = nullptr;
|
|
const nsStyleDisplay* displayData = rowContext->StyleDisplay();
|
|
if (displayData->mAppearance) {
|
|
theme = aPresContext->GetTheme();
|
|
if (theme && theme->ThemeSupportsWidget(aPresContext, nullptr, displayData->mAppearance))
|
|
useTheme = true;
|
|
}
|
|
bool isSelected = false;
|
|
nsCOMPtr<nsITreeSelection> selection;
|
|
mView->GetSelection(getter_AddRefs(selection));
|
|
if (selection)
|
|
selection->IsSelected(aRowIndex, &isSelected);
|
|
if (useTheme && !isSelected) {
|
|
nsRect dirty;
|
|
dirty.IntersectRect(rowRect, aDirtyRect);
|
|
theme->DrawWidgetBackground(&aRenderingContext, this,
|
|
displayData->mAppearance, rowRect, dirty);
|
|
} else {
|
|
result &= PaintBackgroundLayer(rowContext, aPresContext, aRenderingContext,
|
|
rowRect, aDirtyRect);
|
|
}
|
|
|
|
// Adjust the rect for its border and padding.
|
|
nsRect originalRowRect = rowRect;
|
|
AdjustForBorderPadding(rowContext, rowRect);
|
|
|
|
bool isSeparator = false;
|
|
mView->IsSeparator(aRowIndex, &isSeparator);
|
|
if (isSeparator) {
|
|
// The row is a separator.
|
|
|
|
nscoord primaryX = rowRect.x;
|
|
nsTreeColumn* primaryCol = mColumns->GetPrimaryColumn();
|
|
if (primaryCol) {
|
|
// Paint the primary cell.
|
|
nsRect cellRect;
|
|
rv = primaryCol->GetRect(this, rowRect.y, rowRect.height, &cellRect);
|
|
if (NS_FAILED(rv)) {
|
|
NS_NOTREACHED("primary column is invalid");
|
|
return result;
|
|
}
|
|
|
|
if (OffsetForHorzScroll(cellRect, false)) {
|
|
cellRect.x += aPt.x;
|
|
nsRect dirtyRect;
|
|
nsRect checkRect(cellRect.x, originalRowRect.y,
|
|
cellRect.width, originalRowRect.height);
|
|
if (dirtyRect.IntersectRect(aDirtyRect, checkRect)) {
|
|
result &= PaintCell(aRowIndex, primaryCol, cellRect, aPresContext,
|
|
aRenderingContext, aDirtyRect, primaryX, aPt);
|
|
}
|
|
}
|
|
|
|
// Paint the left side of the separator.
|
|
nscoord currX;
|
|
nsTreeColumn* previousCol = primaryCol->GetPrevious();
|
|
if (previousCol) {
|
|
nsRect prevColRect;
|
|
rv = previousCol->GetRect(this, 0, 0, &prevColRect);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
currX = (prevColRect.x - mHorzPosition) + prevColRect.width + aPt.x;
|
|
} else {
|
|
NS_NOTREACHED("The column before the primary column is invalid");
|
|
currX = rowRect.x;
|
|
}
|
|
} else {
|
|
currX = rowRect.x;
|
|
}
|
|
|
|
int32_t level;
|
|
mView->GetLevel(aRowIndex, &level);
|
|
if (level == 0)
|
|
currX += mIndentation;
|
|
|
|
if (currX > rowRect.x) {
|
|
nsRect separatorRect(rowRect);
|
|
separatorRect.width -= rowRect.x + rowRect.width - currX;
|
|
result &= PaintSeparator(aRowIndex, separatorRect, aPresContext,
|
|
aRenderingContext, aDirtyRect);
|
|
}
|
|
}
|
|
|
|
// Paint the right side (whole) separator.
|
|
nsRect separatorRect(rowRect);
|
|
if (primaryX > rowRect.x) {
|
|
separatorRect.width -= primaryX - rowRect.x;
|
|
separatorRect.x += primaryX - rowRect.x;
|
|
}
|
|
result &= PaintSeparator(aRowIndex, separatorRect, aPresContext,
|
|
aRenderingContext, aDirtyRect);
|
|
}
|
|
else {
|
|
// Now loop over our cells. Only paint a cell if it intersects with our dirty rect.
|
|
for (nsTreeColumn* currCol = mColumns->GetFirstColumn(); currCol;
|
|
currCol = currCol->GetNext()) {
|
|
nsRect cellRect;
|
|
rv = currCol->GetRect(this, rowRect.y, rowRect.height, &cellRect);
|
|
// Don't paint cells in hidden columns.
|
|
if (NS_FAILED(rv) || cellRect.width == 0)
|
|
continue;
|
|
|
|
if (OffsetForHorzScroll(cellRect, false)) {
|
|
cellRect.x += aPt.x;
|
|
|
|
// for primary columns, use the row's vertical size so that the
|
|
// lines get drawn properly
|
|
nsRect checkRect = cellRect;
|
|
if (currCol->IsPrimary())
|
|
checkRect = nsRect(cellRect.x, originalRowRect.y,
|
|
cellRect.width, originalRowRect.height);
|
|
|
|
nsRect dirtyRect;
|
|
nscoord dummy;
|
|
if (dirtyRect.IntersectRect(aDirtyRect, checkRect))
|
|
result &= PaintCell(aRowIndex, currCol, cellRect, aPresContext,
|
|
aRenderingContext, aDirtyRect, dummy, aPt);
|
|
}
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
DrawResult
|
|
nsTreeBodyFrame::PaintSeparator(int32_t aRowIndex,
|
|
const nsRect& aSeparatorRect,
|
|
nsPresContext* aPresContext,
|
|
nsRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect)
|
|
{
|
|
// Resolve style for the separator.
|
|
nsStyleContext* separatorContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreeseparator);
|
|
bool useTheme = false;
|
|
nsITheme *theme = nullptr;
|
|
const nsStyleDisplay* displayData = separatorContext->StyleDisplay();
|
|
if ( displayData->mAppearance ) {
|
|
theme = aPresContext->GetTheme();
|
|
if (theme && theme->ThemeSupportsWidget(aPresContext, nullptr, displayData->mAppearance))
|
|
useTheme = true;
|
|
}
|
|
|
|
DrawResult result = DrawResult::SUCCESS;
|
|
|
|
// use -moz-appearance if provided.
|
|
if (useTheme) {
|
|
nsRect dirty;
|
|
dirty.IntersectRect(aSeparatorRect, aDirtyRect);
|
|
theme->DrawWidgetBackground(&aRenderingContext, this,
|
|
displayData->mAppearance, aSeparatorRect, dirty);
|
|
}
|
|
else {
|
|
const nsStylePosition* stylePosition = separatorContext->StylePosition();
|
|
|
|
// Obtain the height for the separator or use the default value.
|
|
nscoord height;
|
|
if (stylePosition->mHeight.GetUnit() == eStyleUnit_Coord)
|
|
height = stylePosition->mHeight.GetCoordValue();
|
|
else {
|
|
// Use default height 2px.
|
|
height = nsPresContext::CSSPixelsToAppUnits(2);
|
|
}
|
|
|
|
// Obtain the margins for the separator and then deflate our rect by that
|
|
// amount. The separator is assumed to be contained within the deflated rect.
|
|
nsRect separatorRect(aSeparatorRect.x, aSeparatorRect.y, aSeparatorRect.width, height);
|
|
nsMargin separatorMargin;
|
|
separatorContext->StyleMargin()->GetMargin(separatorMargin);
|
|
separatorRect.Deflate(separatorMargin);
|
|
|
|
// Center the separator.
|
|
separatorRect.y += (aSeparatorRect.height - height) / 2;
|
|
|
|
result &= PaintBackgroundLayer(separatorContext, aPresContext,
|
|
aRenderingContext, separatorRect,
|
|
aDirtyRect);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
DrawResult
|
|
nsTreeBodyFrame::PaintCell(int32_t aRowIndex,
|
|
nsTreeColumn* aColumn,
|
|
const nsRect& aCellRect,
|
|
nsPresContext* aPresContext,
|
|
nsRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nscoord& aCurrX,
|
|
nsPoint aPt)
|
|
{
|
|
NS_PRECONDITION(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
// Now obtain the properties for our cell.
|
|
// XXX Automatically fill in the following props: open, closed, container, leaf, selected, focused, and the col ID.
|
|
PrefillPropertyArray(aRowIndex, aColumn);
|
|
nsAutoString properties;
|
|
mView->GetCellProperties(aRowIndex, aColumn, properties);
|
|
nsTreeUtils::TokenizeProperties(properties, mScratchArray);
|
|
|
|
// Resolve style for the cell. It contains all the info we need to lay ourselves
|
|
// out and to paint.
|
|
nsStyleContext* cellContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreecell);
|
|
|
|
bool isRTL = StyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL;
|
|
|
|
// Obtain the margins for the cell and then deflate our rect by that
|
|
// amount. The cell is assumed to be contained within the deflated rect.
|
|
nsRect cellRect(aCellRect);
|
|
nsMargin cellMargin;
|
|
cellContext->StyleMargin()->GetMargin(cellMargin);
|
|
cellRect.Deflate(cellMargin);
|
|
|
|
// Paint our borders and background for our row rect.
|
|
DrawResult result = PaintBackgroundLayer(cellContext, aPresContext,
|
|
aRenderingContext, cellRect,
|
|
aDirtyRect);
|
|
|
|
// Adjust the rect for its border and padding.
|
|
AdjustForBorderPadding(cellContext, cellRect);
|
|
|
|
nscoord currX = cellRect.x;
|
|
nscoord remainingWidth = cellRect.width;
|
|
|
|
// Now we paint the contents of the cells.
|
|
// Directionality of the tree determines the order in which we paint.
|
|
// NS_STYLE_DIRECTION_LTR means paint from left to right.
|
|
// NS_STYLE_DIRECTION_RTL means paint from right to left.
|
|
|
|
if (aColumn->IsPrimary()) {
|
|
// If we're the primary column, we need to indent and paint the twisty and any connecting lines
|
|
// between siblings.
|
|
|
|
int32_t level;
|
|
mView->GetLevel(aRowIndex, &level);
|
|
|
|
if (!isRTL)
|
|
currX += mIndentation * level;
|
|
remainingWidth -= mIndentation * level;
|
|
|
|
// Resolve the style to use for the connecting lines.
|
|
nsStyleContext* lineContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreeline);
|
|
|
|
if (mIndentation && level &&
|
|
lineContext->StyleVisibility()->IsVisibleOrCollapsed()) {
|
|
// Paint the thread lines.
|
|
|
|
// Get the size of the twisty. We don't want to paint the twisty
|
|
// before painting of connecting lines since it would paint lines over
|
|
// the twisty. But we need to leave a place for it.
|
|
nsStyleContext* twistyContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreetwisty);
|
|
|
|
nsRect imageSize;
|
|
nsRect twistyRect(aCellRect);
|
|
GetTwistyRect(aRowIndex, aColumn, imageSize, twistyRect, aPresContext,
|
|
twistyContext);
|
|
|
|
nsMargin twistyMargin;
|
|
twistyContext->StyleMargin()->GetMargin(twistyMargin);
|
|
twistyRect.Inflate(twistyMargin);
|
|
|
|
aRenderingContext.ThebesContext()->Save();
|
|
|
|
const nsStyleBorder* borderStyle = lineContext->StyleBorder();
|
|
nscolor color;
|
|
bool useForegroundColor;
|
|
borderStyle->GetBorderColor(NS_SIDE_LEFT, color, useForegroundColor);
|
|
if (useForegroundColor) {
|
|
// GetBorderColor didn't touch color, thus grab it from the treeline context
|
|
color = lineContext->StyleColor()->mColor;
|
|
}
|
|
ColorPattern colorPatt(ToDeviceColor(color));
|
|
|
|
uint8_t style;
|
|
style = borderStyle->GetBorderStyle(NS_SIDE_LEFT);
|
|
StrokeOptions strokeOptions;
|
|
nsLayoutUtils::InitDashPattern(strokeOptions, style);
|
|
|
|
nscoord srcX = currX + twistyRect.width - mIndentation / 2;
|
|
nscoord lineY = (aRowIndex - mTopRowIndex) * mRowHeight + aPt.y;
|
|
|
|
DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
|
|
nsPresContext* pc = PresContext();
|
|
|
|
// Don't paint off our cell.
|
|
if (srcX <= cellRect.x + cellRect.width) {
|
|
nscoord destX = currX + twistyRect.width;
|
|
if (destX > cellRect.x + cellRect.width)
|
|
destX = cellRect.x + cellRect.width;
|
|
if (isRTL) {
|
|
srcX = currX + remainingWidth - (srcX - cellRect.x);
|
|
destX = currX + remainingWidth - (destX - cellRect.x);
|
|
}
|
|
Point p1(pc->AppUnitsToGfxUnits(srcX),
|
|
pc->AppUnitsToGfxUnits(lineY + mRowHeight / 2));
|
|
Point p2(pc->AppUnitsToGfxUnits(destX),
|
|
pc->AppUnitsToGfxUnits(lineY + mRowHeight / 2));
|
|
SnapLineToDevicePixelsForStroking(p1, p2, *drawTarget,
|
|
strokeOptions.mLineWidth);
|
|
drawTarget->StrokeLine(p1, p2, colorPatt, strokeOptions);
|
|
}
|
|
|
|
int32_t currentParent = aRowIndex;
|
|
for (int32_t i = level; i > 0; i--) {
|
|
if (srcX <= cellRect.x + cellRect.width) {
|
|
// Paint full vertical line only if we have next sibling.
|
|
bool hasNextSibling;
|
|
mView->HasNextSibling(currentParent, aRowIndex, &hasNextSibling);
|
|
if (hasNextSibling || i == level) {
|
|
Point p1(pc->AppUnitsToGfxUnits(srcX),
|
|
pc->AppUnitsToGfxUnits(lineY));
|
|
Point p2;
|
|
p2.x = pc->AppUnitsToGfxUnits(srcX);
|
|
|
|
if (hasNextSibling)
|
|
p2.y = pc->AppUnitsToGfxUnits(lineY + mRowHeight);
|
|
else if (i == level)
|
|
p2.y = pc->AppUnitsToGfxUnits(lineY + mRowHeight / 2);
|
|
|
|
SnapLineToDevicePixelsForStroking(p1, p2, *drawTarget,
|
|
strokeOptions.mLineWidth);
|
|
drawTarget->StrokeLine(p1, p2, colorPatt, strokeOptions);
|
|
}
|
|
}
|
|
|
|
int32_t parent;
|
|
if (NS_FAILED(mView->GetParentIndex(currentParent, &parent)) || parent < 0)
|
|
break;
|
|
currentParent = parent;
|
|
srcX -= mIndentation;
|
|
}
|
|
|
|
aRenderingContext.ThebesContext()->Restore();
|
|
}
|
|
|
|
// Always leave space for the twisty.
|
|
nsRect twistyRect(currX, cellRect.y, remainingWidth, cellRect.height);
|
|
result &= PaintTwisty(aRowIndex, aColumn, twistyRect, aPresContext,
|
|
aRenderingContext, aDirtyRect, remainingWidth,
|
|
currX);
|
|
}
|
|
|
|
// Now paint the icon for our cell.
|
|
nsRect iconRect(currX, cellRect.y, remainingWidth, cellRect.height);
|
|
nsRect dirtyRect;
|
|
if (dirtyRect.IntersectRect(aDirtyRect, iconRect)) {
|
|
result &= PaintImage(aRowIndex, aColumn, iconRect, aPresContext,
|
|
aRenderingContext, aDirtyRect, remainingWidth,
|
|
currX);
|
|
}
|
|
|
|
// Now paint our element, but only if we aren't a cycler column.
|
|
// XXX until we have the ability to load images, allow the view to
|
|
// insert text into cycler columns...
|
|
if (!aColumn->IsCycler()) {
|
|
nsRect elementRect(currX, cellRect.y, remainingWidth, cellRect.height);
|
|
nsRect dirtyRect;
|
|
if (dirtyRect.IntersectRect(aDirtyRect, elementRect)) {
|
|
switch (aColumn->GetType()) {
|
|
case nsITreeColumn::TYPE_TEXT:
|
|
case nsITreeColumn::TYPE_PASSWORD:
|
|
PaintText(aRowIndex, aColumn, elementRect, aPresContext, aRenderingContext, aDirtyRect, currX);
|
|
break;
|
|
case nsITreeColumn::TYPE_CHECKBOX:
|
|
result &= PaintCheckbox(aRowIndex, aColumn, elementRect, aPresContext,
|
|
aRenderingContext, aDirtyRect);
|
|
break;
|
|
case nsITreeColumn::TYPE_PROGRESSMETER:
|
|
int32_t state;
|
|
mView->GetProgressMode(aRowIndex, aColumn, &state);
|
|
switch (state) {
|
|
case nsITreeView::PROGRESS_NORMAL:
|
|
case nsITreeView::PROGRESS_UNDETERMINED:
|
|
result &= PaintProgressMeter(aRowIndex, aColumn, elementRect,
|
|
aPresContext, aRenderingContext,
|
|
aDirtyRect);
|
|
break;
|
|
case nsITreeView::PROGRESS_NONE:
|
|
default:
|
|
PaintText(aRowIndex, aColumn, elementRect, aPresContext, aRenderingContext, aDirtyRect, currX);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
aCurrX = currX;
|
|
|
|
return result;
|
|
}
|
|
|
|
DrawResult
|
|
nsTreeBodyFrame::PaintTwisty(int32_t aRowIndex,
|
|
nsTreeColumn* aColumn,
|
|
const nsRect& aTwistyRect,
|
|
nsPresContext* aPresContext,
|
|
nsRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nscoord& aRemainingWidth,
|
|
nscoord& aCurrX)
|
|
{
|
|
NS_PRECONDITION(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
bool isRTL = StyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL;
|
|
nscoord rightEdge = aCurrX + aRemainingWidth;
|
|
// Paint the twisty, but only if we are a non-empty container.
|
|
bool shouldPaint = false;
|
|
bool isContainer = false;
|
|
mView->IsContainer(aRowIndex, &isContainer);
|
|
if (isContainer) {
|
|
bool isContainerEmpty = false;
|
|
mView->IsContainerEmpty(aRowIndex, &isContainerEmpty);
|
|
if (!isContainerEmpty)
|
|
shouldPaint = true;
|
|
}
|
|
|
|
// Resolve style for the twisty.
|
|
nsStyleContext* twistyContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreetwisty);
|
|
|
|
// Obtain the margins for the twisty and then deflate our rect by that
|
|
// amount. The twisty is assumed to be contained within the deflated rect.
|
|
nsRect twistyRect(aTwistyRect);
|
|
nsMargin twistyMargin;
|
|
twistyContext->StyleMargin()->GetMargin(twistyMargin);
|
|
twistyRect.Deflate(twistyMargin);
|
|
|
|
nsRect imageSize;
|
|
nsITheme* theme = GetTwistyRect(aRowIndex, aColumn, imageSize, twistyRect,
|
|
aPresContext, twistyContext);
|
|
|
|
// Subtract out the remaining width. This is done even when we don't actually paint a twisty in
|
|
// this cell, so that cells in different rows still line up.
|
|
nsRect copyRect(twistyRect);
|
|
copyRect.Inflate(twistyMargin);
|
|
aRemainingWidth -= copyRect.width;
|
|
if (!isRTL)
|
|
aCurrX += copyRect.width;
|
|
|
|
DrawResult result = DrawResult::SUCCESS;
|
|
|
|
if (shouldPaint) {
|
|
// Paint our borders and background for our image rect.
|
|
result &= PaintBackgroundLayer(twistyContext, aPresContext,
|
|
aRenderingContext, twistyRect,
|
|
aDirtyRect);
|
|
|
|
if (theme) {
|
|
if (isRTL)
|
|
twistyRect.x = rightEdge - twistyRect.width;
|
|
// yeah, I know it says we're drawing a background, but a twisty is really a fg
|
|
// object since it doesn't have anything that gecko would want to draw over it. Besides,
|
|
// we have to prevent imagelib from drawing it.
|
|
nsRect dirty;
|
|
dirty.IntersectRect(twistyRect, aDirtyRect);
|
|
theme->DrawWidgetBackground(&aRenderingContext, this,
|
|
twistyContext->StyleDisplay()->mAppearance, twistyRect, dirty);
|
|
}
|
|
else {
|
|
// Time to paint the twisty.
|
|
// Adjust the rect for its border and padding.
|
|
nsMargin bp(0,0,0,0);
|
|
GetBorderPadding(twistyContext, bp);
|
|
twistyRect.Deflate(bp);
|
|
if (isRTL)
|
|
twistyRect.x = rightEdge - twistyRect.width;
|
|
imageSize.Deflate(bp);
|
|
|
|
// Get the image for drawing.
|
|
nsCOMPtr<imgIContainer> image;
|
|
bool useImageRegion = true;
|
|
GetImage(aRowIndex, aColumn, true, twistyContext, useImageRegion, getter_AddRefs(image));
|
|
if (image) {
|
|
nsPoint pt = twistyRect.TopLeft();
|
|
|
|
// Center the image. XXX Obey vertical-align style prop?
|
|
if (imageSize.height < twistyRect.height) {
|
|
pt.y += (twistyRect.height - imageSize.height)/2;
|
|
}
|
|
|
|
// Paint the image.
|
|
result &=
|
|
nsLayoutUtils::DrawSingleUnscaledImage(
|
|
*aRenderingContext.ThebesContext(), aPresContext, image,
|
|
Filter::POINT, pt, &aDirtyRect,
|
|
imgIContainer::FLAG_NONE, &imageSize);
|
|
}
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
DrawResult
|
|
nsTreeBodyFrame::PaintImage(int32_t aRowIndex,
|
|
nsTreeColumn* aColumn,
|
|
const nsRect& aImageRect,
|
|
nsPresContext* aPresContext,
|
|
nsRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nscoord& aRemainingWidth,
|
|
nscoord& aCurrX)
|
|
{
|
|
NS_PRECONDITION(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
bool isRTL = StyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL;
|
|
nscoord rightEdge = aCurrX + aRemainingWidth;
|
|
// Resolve style for the image.
|
|
nsStyleContext* imageContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreeimage);
|
|
|
|
// Obtain opacity value for the image.
|
|
float opacity = imageContext->StyleDisplay()->mOpacity;
|
|
|
|
// Obtain the margins for the image and then deflate our rect by that
|
|
// amount. The image is assumed to be contained within the deflated rect.
|
|
nsRect imageRect(aImageRect);
|
|
nsMargin imageMargin;
|
|
imageContext->StyleMargin()->GetMargin(imageMargin);
|
|
imageRect.Deflate(imageMargin);
|
|
|
|
// Get the image.
|
|
bool useImageRegion = true;
|
|
nsCOMPtr<imgIContainer> image;
|
|
GetImage(aRowIndex, aColumn, false, imageContext, useImageRegion, getter_AddRefs(image));
|
|
|
|
// Get the image destination size.
|
|
nsSize imageDestSize = GetImageDestSize(imageContext, useImageRegion, image);
|
|
if (!imageDestSize.width || !imageDestSize.height) {
|
|
return DrawResult::SUCCESS;
|
|
}
|
|
|
|
// Get the borders and padding.
|
|
nsMargin bp(0,0,0,0);
|
|
GetBorderPadding(imageContext, bp);
|
|
|
|
// destRect will be passed as the aDestRect argument in the DrawImage method.
|
|
// Start with the imageDestSize width and height.
|
|
nsRect destRect(0, 0, imageDestSize.width, imageDestSize.height);
|
|
// Inflate destRect for borders and padding so that we can compare/adjust
|
|
// with respect to imageRect.
|
|
destRect.Inflate(bp);
|
|
|
|
// The destRect width and height have not been adjusted to fit within the
|
|
// cell width and height.
|
|
// We must adjust the width even if image is null, because the width is used
|
|
// to update the aRemainingWidth and aCurrX values.
|
|
// Since the height isn't used unless the image is not null, we will adjust
|
|
// the height inside the if (image) block below.
|
|
|
|
if (destRect.width > imageRect.width) {
|
|
// The destRect is too wide to fit within the cell width.
|
|
// Adjust destRect width to fit within the cell width.
|
|
destRect.width = imageRect.width;
|
|
}
|
|
else {
|
|
// The cell is wider than the destRect.
|
|
// In a cycler column, the image is centered horizontally.
|
|
if (!aColumn->IsCycler()) {
|
|
// If this column is not a cycler, we won't center the image horizontally.
|
|
// We adjust the imageRect width so that the image is placed at the start
|
|
// of the cell.
|
|
imageRect.width = destRect.width;
|
|
}
|
|
}
|
|
|
|
DrawResult result = DrawResult::SUCCESS;
|
|
|
|
if (image) {
|
|
if (isRTL)
|
|
imageRect.x = rightEdge - imageRect.width;
|
|
// Paint our borders and background for our image rect
|
|
result &= PaintBackgroundLayer(imageContext, aPresContext,
|
|
aRenderingContext, imageRect,
|
|
aDirtyRect);
|
|
|
|
// The destRect x and y have not been set yet. Let's do that now.
|
|
// Initially, we use the imageRect x and y.
|
|
destRect.x = imageRect.x;
|
|
destRect.y = imageRect.y;
|
|
|
|
if (destRect.width < imageRect.width) {
|
|
// The destRect width is smaller than the cell width.
|
|
// Center the image horizontally in the cell.
|
|
// Adjust the destRect x accordingly.
|
|
destRect.x += (imageRect.width - destRect.width)/2;
|
|
}
|
|
|
|
// Now it's time to adjust the destRect height to fit within the cell height.
|
|
if (destRect.height > imageRect.height) {
|
|
// The destRect height is larger than the cell height.
|
|
// Adjust destRect height to fit within the cell height.
|
|
destRect.height = imageRect.height;
|
|
}
|
|
else if (destRect.height < imageRect.height) {
|
|
// The destRect height is smaller than the cell height.
|
|
// Center the image vertically in the cell.
|
|
// Adjust the destRect y accordingly.
|
|
destRect.y += (imageRect.height - destRect.height)/2;
|
|
}
|
|
|
|
// It's almost time to paint the image.
|
|
// Deflate destRect for the border and padding.
|
|
destRect.Deflate(bp);
|
|
|
|
// Compute the area where our whole image would be mapped, to get the
|
|
// desired subregion onto our actual destRect:
|
|
nsRect wholeImageDest;
|
|
CSSIntSize rawImageCSSIntSize;
|
|
if (NS_SUCCEEDED(image->GetWidth(&rawImageCSSIntSize.width)) &&
|
|
NS_SUCCEEDED(image->GetHeight(&rawImageCSSIntSize.height))) {
|
|
// Get the image source rectangle - the rectangle containing the part of
|
|
// the image that we are going to display. sourceRect will be passed as
|
|
// the aSrcRect argument in the DrawImage method.
|
|
nsRect sourceRect = GetImageSourceRect(imageContext, useImageRegion, image);
|
|
|
|
// Let's say that the image is 100 pixels tall and that the CSS has
|
|
// specified that the destination height should be 50 pixels tall. Let's
|
|
// say that the cell height is only 20 pixels. So, in those 20 visible
|
|
// pixels, we want to see the top 20/50ths of the image. So, the
|
|
// sourceRect.height should be 100 * 20 / 50, which is 40 pixels.
|
|
// Essentially, we are scaling the image as dictated by the CSS
|
|
// destination height and width, and we are then clipping the scaled
|
|
// image by the cell width and height.
|
|
nsSize rawImageSize(CSSPixel::ToAppUnits(rawImageCSSIntSize));
|
|
wholeImageDest =
|
|
nsLayoutUtils::GetWholeImageDestination(rawImageSize, sourceRect,
|
|
nsRect(destRect.TopLeft(),
|
|
imageDestSize));
|
|
} else {
|
|
// GetWidth/GetHeight failed, so we can't easily map a subregion of the
|
|
// source image onto the destination area. So, just draw the whole image.
|
|
wholeImageDest = destRect;
|
|
}
|
|
|
|
gfxContext* ctx = aRenderingContext.ThebesContext();
|
|
if (opacity != 1.0f) {
|
|
ctx->PushGroupForBlendBack(gfxContentType::COLOR_ALPHA, opacity);
|
|
}
|
|
|
|
result &=
|
|
nsLayoutUtils::DrawImage(*ctx, aPresContext, image,
|
|
nsLayoutUtils::GetGraphicsFilterForFrame(this),
|
|
wholeImageDest, destRect, destRect.TopLeft(), aDirtyRect,
|
|
imgIContainer::FLAG_NONE);
|
|
|
|
if (opacity != 1.0f) {
|
|
ctx->PopGroupAndBlend();
|
|
}
|
|
}
|
|
|
|
// Update the aRemainingWidth and aCurrX values.
|
|
imageRect.Inflate(imageMargin);
|
|
aRemainingWidth -= imageRect.width;
|
|
if (!isRTL) {
|
|
aCurrX += imageRect.width;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::PaintText(int32_t aRowIndex,
|
|
nsTreeColumn* aColumn,
|
|
const nsRect& aTextRect,
|
|
nsPresContext* aPresContext,
|
|
nsRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nscoord& aCurrX)
|
|
{
|
|
NS_PRECONDITION(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
bool isRTL = StyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL;
|
|
|
|
// Now obtain the text for our cell.
|
|
nsAutoString text;
|
|
mView->GetCellText(aRowIndex, aColumn, text);
|
|
|
|
if (aColumn->Type() == nsITreeColumn::TYPE_PASSWORD) {
|
|
nsTextEditRules::FillBufWithPWChars(&text, text.Length());
|
|
}
|
|
|
|
// We're going to paint this text so we need to ensure bidi is enabled if
|
|
// necessary
|
|
CheckTextForBidi(text);
|
|
|
|
if (text.Length() == 0)
|
|
return; // Don't paint an empty string. XXX What about background/borders? Still paint?
|
|
|
|
int32_t appUnitsPerDevPixel = PresContext()->AppUnitsPerDevPixel();
|
|
DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
|
|
|
|
// Resolve style for the text. It contains all the info we need to lay ourselves
|
|
// out and to paint.
|
|
nsStyleContext* textContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreecelltext);
|
|
|
|
// Obtain opacity value for the image.
|
|
float opacity = textContext->StyleDisplay()->mOpacity;
|
|
|
|
// Obtain the margins for the text and then deflate our rect by that
|
|
// amount. The text is assumed to be contained within the deflated rect.
|
|
nsRect textRect(aTextRect);
|
|
nsMargin textMargin;
|
|
textContext->StyleMargin()->GetMargin(textMargin);
|
|
textRect.Deflate(textMargin);
|
|
|
|
// Adjust the rect for its border and padding.
|
|
nsMargin bp(0,0,0,0);
|
|
GetBorderPadding(textContext, bp);
|
|
textRect.Deflate(bp);
|
|
|
|
// Compute our text size.
|
|
RefPtr<nsFontMetrics> fontMet;
|
|
nsLayoutUtils::GetFontMetricsForStyleContext(textContext,
|
|
getter_AddRefs(fontMet));
|
|
|
|
nscoord height = fontMet->MaxHeight();
|
|
nscoord baseline = fontMet->MaxAscent();
|
|
|
|
// Center the text. XXX Obey vertical-align style prop?
|
|
if (height < textRect.height) {
|
|
textRect.y += (textRect.height - height)/2;
|
|
textRect.height = height;
|
|
}
|
|
|
|
// Set our font.
|
|
AdjustForCellText(text, aRowIndex, aColumn, aRenderingContext, *fontMet, textRect);
|
|
textRect.Inflate(bp);
|
|
|
|
// Subtract out the remaining width.
|
|
if (!isRTL)
|
|
aCurrX += textRect.width + textMargin.LeftRight();
|
|
|
|
PaintBackgroundLayer(textContext, aPresContext, aRenderingContext, textRect, aDirtyRect);
|
|
|
|
// Time to paint our text.
|
|
textRect.Deflate(bp);
|
|
|
|
// Set our color.
|
|
ColorPattern color(ToDeviceColor(textContext->StyleColor()->mColor));
|
|
|
|
// Draw decorations.
|
|
uint8_t decorations = textContext->StyleTextReset()->mTextDecorationLine;
|
|
|
|
nscoord offset;
|
|
nscoord size;
|
|
if (decorations & (NS_FONT_DECORATION_OVERLINE | NS_FONT_DECORATION_UNDERLINE)) {
|
|
fontMet->GetUnderline(offset, size);
|
|
if (decorations & NS_FONT_DECORATION_OVERLINE) {
|
|
nsRect r(textRect.x, textRect.y, textRect.width, size);
|
|
Rect devPxRect =
|
|
NSRectToSnappedRect(r, appUnitsPerDevPixel, *drawTarget);
|
|
drawTarget->FillRect(devPxRect, color);
|
|
}
|
|
if (decorations & NS_FONT_DECORATION_UNDERLINE) {
|
|
nsRect r(textRect.x, textRect.y + baseline - offset,
|
|
textRect.width, size);
|
|
Rect devPxRect =
|
|
NSRectToSnappedRect(r, appUnitsPerDevPixel, *drawTarget);
|
|
drawTarget->FillRect(devPxRect, color);
|
|
}
|
|
}
|
|
if (decorations & NS_FONT_DECORATION_LINE_THROUGH) {
|
|
fontMet->GetStrikeout(offset, size);
|
|
nsRect r(textRect.x, textRect.y + baseline - offset, textRect.width, size);
|
|
Rect devPxRect =
|
|
NSRectToSnappedRect(r, appUnitsPerDevPixel, *drawTarget);
|
|
drawTarget->FillRect(devPxRect, color);
|
|
}
|
|
nsStyleContext* cellContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreecell);
|
|
|
|
gfxContext* ctx = aRenderingContext.ThebesContext();
|
|
if (opacity != 1.0f) {
|
|
ctx->PushGroupForBlendBack(gfxContentType::COLOR_ALPHA, opacity);
|
|
}
|
|
|
|
ctx->SetColor(Color::FromABGR(textContext->StyleColor()->mColor));
|
|
nsLayoutUtils::DrawString(this, *fontMet, &aRenderingContext, text.get(),
|
|
text.Length(),
|
|
textRect.TopLeft() + nsPoint(0, baseline),
|
|
cellContext);
|
|
|
|
if (opacity != 1.0f) {
|
|
ctx->PopGroupAndBlend();
|
|
}
|
|
|
|
}
|
|
|
|
DrawResult
|
|
nsTreeBodyFrame::PaintCheckbox(int32_t aRowIndex,
|
|
nsTreeColumn* aColumn,
|
|
const nsRect& aCheckboxRect,
|
|
nsPresContext* aPresContext,
|
|
nsRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect)
|
|
{
|
|
NS_PRECONDITION(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
// Resolve style for the checkbox.
|
|
nsStyleContext* checkboxContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreecheckbox);
|
|
|
|
nscoord rightEdge = aCheckboxRect.XMost();
|
|
|
|
// Obtain the margins for the checkbox and then deflate our rect by that
|
|
// amount. The checkbox is assumed to be contained within the deflated rect.
|
|
nsRect checkboxRect(aCheckboxRect);
|
|
nsMargin checkboxMargin;
|
|
checkboxContext->StyleMargin()->GetMargin(checkboxMargin);
|
|
checkboxRect.Deflate(checkboxMargin);
|
|
|
|
nsRect imageSize = GetImageSize(aRowIndex, aColumn, true, checkboxContext);
|
|
|
|
if (imageSize.height > checkboxRect.height)
|
|
imageSize.height = checkboxRect.height;
|
|
if (imageSize.width > checkboxRect.width)
|
|
imageSize.width = checkboxRect.width;
|
|
|
|
if (StyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL)
|
|
checkboxRect.x = rightEdge - checkboxRect.width;
|
|
|
|
// Paint our borders and background for our image rect.
|
|
DrawResult result = PaintBackgroundLayer(checkboxContext, aPresContext,
|
|
aRenderingContext, checkboxRect,
|
|
aDirtyRect);
|
|
|
|
// Time to paint the checkbox.
|
|
// Adjust the rect for its border and padding.
|
|
nsMargin bp(0,0,0,0);
|
|
GetBorderPadding(checkboxContext, bp);
|
|
checkboxRect.Deflate(bp);
|
|
|
|
// Get the image for drawing.
|
|
nsCOMPtr<imgIContainer> image;
|
|
bool useImageRegion = true;
|
|
GetImage(aRowIndex, aColumn, true, checkboxContext, useImageRegion, getter_AddRefs(image));
|
|
if (image) {
|
|
nsPoint pt = checkboxRect.TopLeft();
|
|
|
|
if (imageSize.height < checkboxRect.height) {
|
|
pt.y += (checkboxRect.height - imageSize.height)/2;
|
|
}
|
|
|
|
if (imageSize.width < checkboxRect.width) {
|
|
pt.x += (checkboxRect.width - imageSize.width)/2;
|
|
}
|
|
|
|
// Paint the image.
|
|
result &=
|
|
nsLayoutUtils::DrawSingleUnscaledImage(*aRenderingContext.ThebesContext(),
|
|
aPresContext,
|
|
image, Filter::POINT, pt, &aDirtyRect,
|
|
imgIContainer::FLAG_NONE, &imageSize);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
DrawResult
|
|
nsTreeBodyFrame::PaintProgressMeter(int32_t aRowIndex,
|
|
nsTreeColumn* aColumn,
|
|
const nsRect& aProgressMeterRect,
|
|
nsPresContext* aPresContext,
|
|
nsRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect)
|
|
{
|
|
NS_PRECONDITION(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
// Resolve style for the progress meter. It contains all the info we need
|
|
// to lay ourselves out and to paint.
|
|
nsStyleContext* meterContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreeprogressmeter);
|
|
|
|
// Obtain the margins for the progress meter and then deflate our rect by that
|
|
// amount. The progress meter is assumed to be contained within the deflated
|
|
// rect.
|
|
nsRect meterRect(aProgressMeterRect);
|
|
nsMargin meterMargin;
|
|
meterContext->StyleMargin()->GetMargin(meterMargin);
|
|
meterRect.Deflate(meterMargin);
|
|
|
|
// Paint our borders and background for our progress meter rect.
|
|
DrawResult result = PaintBackgroundLayer(meterContext, aPresContext,
|
|
aRenderingContext, meterRect,
|
|
aDirtyRect);
|
|
|
|
// Time to paint our progress.
|
|
int32_t state;
|
|
mView->GetProgressMode(aRowIndex, aColumn, &state);
|
|
if (state == nsITreeView::PROGRESS_NORMAL) {
|
|
// Adjust the rect for its border and padding.
|
|
AdjustForBorderPadding(meterContext, meterRect);
|
|
|
|
// Now obtain the value for our cell.
|
|
nsAutoString value;
|
|
mView->GetCellValue(aRowIndex, aColumn, value);
|
|
|
|
nsresult rv;
|
|
int32_t intValue = value.ToInteger(&rv);
|
|
if (intValue < 0)
|
|
intValue = 0;
|
|
else if (intValue > 100)
|
|
intValue = 100;
|
|
|
|
nscoord meterWidth = NSToCoordRound((float)intValue / 100 * meterRect.width);
|
|
if (StyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL)
|
|
meterRect.x += meterRect.width - meterWidth; // right align
|
|
meterRect.width = meterWidth;
|
|
bool useImageRegion = true;
|
|
nsCOMPtr<imgIContainer> image;
|
|
GetImage(aRowIndex, aColumn, true, meterContext, useImageRegion, getter_AddRefs(image));
|
|
if (image) {
|
|
int32_t width, height;
|
|
image->GetWidth(&width);
|
|
image->GetHeight(&height);
|
|
nsSize size(width*nsDeviceContext::AppUnitsPerCSSPixel(),
|
|
height*nsDeviceContext::AppUnitsPerCSSPixel());
|
|
result &=
|
|
nsLayoutUtils::DrawImage(*aRenderingContext.ThebesContext(),
|
|
aPresContext, image,
|
|
nsLayoutUtils::GetGraphicsFilterForFrame(this),
|
|
nsRect(meterRect.TopLeft(), size), meterRect, meterRect.TopLeft(),
|
|
aDirtyRect, imgIContainer::FLAG_NONE);
|
|
} else {
|
|
DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
|
|
int32_t appUnitsPerDevPixel = PresContext()->AppUnitsPerDevPixel();
|
|
Rect rect =
|
|
NSRectToSnappedRect(meterRect, appUnitsPerDevPixel, *drawTarget);
|
|
ColorPattern color(ToDeviceColor(meterContext->StyleColor()->mColor));
|
|
drawTarget->FillRect(rect, color);
|
|
}
|
|
}
|
|
else if (state == nsITreeView::PROGRESS_UNDETERMINED) {
|
|
// Adjust the rect for its border and padding.
|
|
AdjustForBorderPadding(meterContext, meterRect);
|
|
|
|
bool useImageRegion = true;
|
|
nsCOMPtr<imgIContainer> image;
|
|
GetImage(aRowIndex, aColumn, true, meterContext, useImageRegion, getter_AddRefs(image));
|
|
if (image) {
|
|
int32_t width, height;
|
|
image->GetWidth(&width);
|
|
image->GetHeight(&height);
|
|
nsSize size(width*nsDeviceContext::AppUnitsPerCSSPixel(),
|
|
height*nsDeviceContext::AppUnitsPerCSSPixel());
|
|
result &=
|
|
nsLayoutUtils::DrawImage(*aRenderingContext.ThebesContext(),
|
|
aPresContext, image,
|
|
nsLayoutUtils::GetGraphicsFilterForFrame(this),
|
|
nsRect(meterRect.TopLeft(), size), meterRect, meterRect.TopLeft(),
|
|
aDirtyRect, imgIContainer::FLAG_NONE);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
DrawResult
|
|
nsTreeBodyFrame::PaintDropFeedback(const nsRect& aDropFeedbackRect,
|
|
nsPresContext* aPresContext,
|
|
nsRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nsPoint aPt)
|
|
{
|
|
// Paint the drop feedback in between rows.
|
|
|
|
nscoord currX;
|
|
|
|
// Adjust for the primary cell.
|
|
nsTreeColumn* primaryCol = mColumns->GetPrimaryColumn();
|
|
|
|
if (primaryCol) {
|
|
#ifdef DEBUG
|
|
nsresult rv =
|
|
#endif
|
|
primaryCol->GetXInTwips(this, &currX);
|
|
NS_ASSERTION(NS_SUCCEEDED(rv), "primary column is invalid?");
|
|
|
|
currX += aPt.x - mHorzPosition;
|
|
} else {
|
|
currX = aDropFeedbackRect.x;
|
|
}
|
|
|
|
PrefillPropertyArray(mSlots->mDropRow, primaryCol);
|
|
|
|
// Resolve the style to use for the drop feedback.
|
|
nsStyleContext* feedbackContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreedropfeedback);
|
|
|
|
DrawResult result = DrawResult::SUCCESS;
|
|
|
|
// Paint only if it is visible.
|
|
if (feedbackContext->StyleVisibility()->IsVisibleOrCollapsed()) {
|
|
int32_t level;
|
|
mView->GetLevel(mSlots->mDropRow, &level);
|
|
|
|
// If our previous or next row has greater level use that for
|
|
// correct visual indentation.
|
|
if (mSlots->mDropOrient == nsITreeView::DROP_BEFORE) {
|
|
if (mSlots->mDropRow > 0) {
|
|
int32_t previousLevel;
|
|
mView->GetLevel(mSlots->mDropRow - 1, &previousLevel);
|
|
if (previousLevel > level)
|
|
level = previousLevel;
|
|
}
|
|
}
|
|
else {
|
|
if (mSlots->mDropRow < mRowCount - 1) {
|
|
int32_t nextLevel;
|
|
mView->GetLevel(mSlots->mDropRow + 1, &nextLevel);
|
|
if (nextLevel > level)
|
|
level = nextLevel;
|
|
}
|
|
}
|
|
|
|
currX += mIndentation * level;
|
|
|
|
if (primaryCol){
|
|
nsStyleContext* twistyContext = GetPseudoStyleContext(nsCSSAnonBoxes::moztreetwisty);
|
|
nsRect imageSize;
|
|
nsRect twistyRect;
|
|
GetTwistyRect(mSlots->mDropRow, primaryCol, imageSize, twistyRect,
|
|
aPresContext, twistyContext);
|
|
nsMargin twistyMargin;
|
|
twistyContext->StyleMargin()->GetMargin(twistyMargin);
|
|
twistyRect.Inflate(twistyMargin);
|
|
currX += twistyRect.width;
|
|
}
|
|
|
|
const nsStylePosition* stylePosition = feedbackContext->StylePosition();
|
|
|
|
// Obtain the width for the drop feedback or use default value.
|
|
nscoord width;
|
|
if (stylePosition->mWidth.GetUnit() == eStyleUnit_Coord)
|
|
width = stylePosition->mWidth.GetCoordValue();
|
|
else {
|
|
// Use default width 50px.
|
|
width = nsPresContext::CSSPixelsToAppUnits(50);
|
|
}
|
|
|
|
// Obtain the height for the drop feedback or use default value.
|
|
nscoord height;
|
|
if (stylePosition->mHeight.GetUnit() == eStyleUnit_Coord)
|
|
height = stylePosition->mHeight.GetCoordValue();
|
|
else {
|
|
// Use default height 2px.
|
|
height = nsPresContext::CSSPixelsToAppUnits(2);
|
|
}
|
|
|
|
// Obtain the margins for the drop feedback and then deflate our rect
|
|
// by that amount.
|
|
nsRect feedbackRect(currX, aDropFeedbackRect.y, width, height);
|
|
nsMargin margin;
|
|
feedbackContext->StyleMargin()->GetMargin(margin);
|
|
feedbackRect.Deflate(margin);
|
|
|
|
feedbackRect.y += (aDropFeedbackRect.height - height) / 2;
|
|
|
|
// Finally paint the drop feedback.
|
|
result &= PaintBackgroundLayer(feedbackContext, aPresContext,
|
|
aRenderingContext, feedbackRect,
|
|
aDirtyRect);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
DrawResult
|
|
nsTreeBodyFrame::PaintBackgroundLayer(nsStyleContext* aStyleContext,
|
|
nsPresContext* aPresContext,
|
|
nsRenderingContext& aRenderingContext,
|
|
const nsRect& aRect,
|
|
const nsRect& aDirtyRect)
|
|
{
|
|
const nsStyleBorder* myBorder = aStyleContext->StyleBorder();
|
|
|
|
DrawResult result =
|
|
nsCSSRendering::PaintBackgroundWithSC(aPresContext, aRenderingContext,
|
|
this, aDirtyRect, aRect,
|
|
aStyleContext, *myBorder,
|
|
nsCSSRendering::PAINTBG_SYNC_DECODE_IMAGES);
|
|
|
|
result &=
|
|
nsCSSRendering::PaintBorderWithStyleBorder(aPresContext, aRenderingContext,
|
|
this, aDirtyRect, aRect,
|
|
*myBorder, mStyleContext,
|
|
PaintBorderFlags::SYNC_DECODE_IMAGES);
|
|
|
|
nsCSSRendering::PaintOutline(aPresContext, aRenderingContext, this,
|
|
aDirtyRect, aRect, aStyleContext);
|
|
|
|
return result;
|
|
}
|
|
|
|
// Scrolling
|
|
nsresult
|
|
nsTreeBodyFrame::EnsureRowIsVisible(int32_t aRow)
|
|
{
|
|
ScrollParts parts = GetScrollParts();
|
|
nsresult rv = EnsureRowIsVisibleInternal(parts, aRow);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
UpdateScrollbars(parts);
|
|
return rv;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::EnsureRowIsVisibleInternal(const ScrollParts& aParts, int32_t aRow)
|
|
{
|
|
if (!mView || !mPageLength)
|
|
return NS_OK;
|
|
|
|
if (mTopRowIndex <= aRow && mTopRowIndex+mPageLength > aRow)
|
|
return NS_OK;
|
|
|
|
if (aRow < mTopRowIndex)
|
|
ScrollToRowInternal(aParts, aRow);
|
|
else {
|
|
// Bring it just on-screen.
|
|
int32_t distance = aRow - (mTopRowIndex+mPageLength)+1;
|
|
ScrollToRowInternal(aParts, mTopRowIndex+distance);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::EnsureCellIsVisible(int32_t aRow, nsITreeColumn* aCol)
|
|
{
|
|
RefPtr<nsTreeColumn> col = GetColumnImpl(aCol);
|
|
if (!col)
|
|
return NS_ERROR_INVALID_ARG;
|
|
|
|
ScrollParts parts = GetScrollParts();
|
|
|
|
nscoord result = -1;
|
|
nsresult rv;
|
|
|
|
nscoord columnPos;
|
|
rv = col->GetXInTwips(this, &columnPos);
|
|
if(NS_FAILED(rv)) return rv;
|
|
|
|
nscoord columnWidth;
|
|
rv = col->GetWidthInTwips(this, &columnWidth);
|
|
if(NS_FAILED(rv)) return rv;
|
|
|
|
// If the start of the column is before the
|
|
// start of the horizontal view, then scroll
|
|
if (columnPos < mHorzPosition)
|
|
result = columnPos;
|
|
// If the end of the column is past the end of
|
|
// the horizontal view, then scroll
|
|
else if ((columnPos + columnWidth) > (mHorzPosition + mInnerBox.width))
|
|
result = ((columnPos + columnWidth) - (mHorzPosition + mInnerBox.width)) + mHorzPosition;
|
|
|
|
if (result != -1) {
|
|
rv = ScrollHorzInternal(parts, result);
|
|
if(NS_FAILED(rv)) return rv;
|
|
}
|
|
|
|
rv = EnsureRowIsVisibleInternal(parts, aRow);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
UpdateScrollbars(parts);
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::ScrollToCell(int32_t aRow, nsITreeColumn* aCol)
|
|
{
|
|
ScrollParts parts = GetScrollParts();
|
|
nsresult rv = ScrollToRowInternal(parts, aRow);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = ScrollToColumnInternal(parts, aCol);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
UpdateScrollbars(parts);
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::ScrollToColumn(nsITreeColumn* aCol)
|
|
{
|
|
ScrollParts parts = GetScrollParts();
|
|
nsresult rv = ScrollToColumnInternal(parts, aCol);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
UpdateScrollbars(parts);
|
|
return rv;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::ScrollToColumnInternal(const ScrollParts& aParts,
|
|
nsITreeColumn* aCol)
|
|
{
|
|
RefPtr<nsTreeColumn> col = GetColumnImpl(aCol);
|
|
if (!col)
|
|
return NS_ERROR_INVALID_ARG;
|
|
|
|
nscoord x;
|
|
nsresult rv = col->GetXInTwips(this, &x);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
return ScrollHorzInternal(aParts, x);
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::ScrollToHorizontalPosition(int32_t aHorizontalPosition)
|
|
{
|
|
ScrollParts parts = GetScrollParts();
|
|
int32_t position = nsPresContext::CSSPixelsToAppUnits(aHorizontalPosition);
|
|
nsresult rv = ScrollHorzInternal(parts, position);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
UpdateScrollbars(parts);
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::ScrollToRow(int32_t aRow)
|
|
{
|
|
ScrollParts parts = GetScrollParts();
|
|
ScrollToRowInternal(parts, aRow);
|
|
UpdateScrollbars(parts);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::ScrollToRowInternal(const ScrollParts& aParts, int32_t aRow)
|
|
{
|
|
ScrollInternal(aParts, aRow);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::ScrollByLines(int32_t aNumLines)
|
|
{
|
|
if (!mView) {
|
|
return NS_OK;
|
|
}
|
|
int32_t newIndex = mTopRowIndex + aNumLines;
|
|
ScrollToRow(newIndex);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::ScrollByPages(int32_t aNumPages)
|
|
{
|
|
if (!mView) {
|
|
return NS_OK;
|
|
}
|
|
int32_t newIndex = mTopRowIndex + aNumPages * mPageLength;
|
|
ScrollToRow(newIndex);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::ScrollInternal(const ScrollParts& aParts, int32_t aRow)
|
|
{
|
|
if (!mView) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// Note that we may be "over scrolled" at this point; that is the
|
|
// current mTopRowIndex may be larger than mRowCount - mPageLength.
|
|
// This can happen when items are removed for example. (bug 1085050)
|
|
|
|
int32_t maxTopRowIndex = std::max(0, mRowCount - mPageLength);
|
|
aRow = mozilla::clamped(aRow, 0, maxTopRowIndex);
|
|
if (aRow == mTopRowIndex) {
|
|
return NS_OK;
|
|
}
|
|
mTopRowIndex = aRow;
|
|
Invalidate();
|
|
PostScrollEvent();
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::ScrollHorzInternal(const ScrollParts& aParts, int32_t aPosition)
|
|
{
|
|
if (!mView || !aParts.mColumnsScrollFrame || !aParts.mHScrollbar)
|
|
return NS_OK;
|
|
|
|
if (aPosition == mHorzPosition)
|
|
return NS_OK;
|
|
|
|
if (aPosition < 0 || aPosition > mHorzWidth)
|
|
return NS_OK;
|
|
|
|
nsRect bounds = aParts.mColumnsFrame->GetRect();
|
|
if (aPosition > (mHorzWidth - bounds.width))
|
|
aPosition = mHorzWidth - bounds.width;
|
|
|
|
mHorzPosition = aPosition;
|
|
|
|
Invalidate();
|
|
|
|
// Update the column scroll view
|
|
nsWeakFrame weakFrame(this);
|
|
aParts.mColumnsScrollFrame->ScrollTo(nsPoint(mHorzPosition, 0),
|
|
nsIScrollableFrame::INSTANT);
|
|
if (!weakFrame.IsAlive()) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// And fire off an event about it all
|
|
PostScrollEvent();
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::ScrollByPage(nsScrollbarFrame* aScrollbar, int32_t aDirection,
|
|
nsIScrollbarMediator::ScrollSnapMode aSnap)
|
|
{
|
|
// CSS Scroll Snapping is not enabled for XUL, aSnap is ignored
|
|
MOZ_ASSERT(aScrollbar != nullptr);
|
|
ScrollByPages(aDirection);
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::ScrollByWhole(nsScrollbarFrame* aScrollbar, int32_t aDirection,
|
|
nsIScrollbarMediator::ScrollSnapMode aSnap)
|
|
{
|
|
// CSS Scroll Snapping is not enabled for XUL, aSnap is ignored
|
|
MOZ_ASSERT(aScrollbar != nullptr);
|
|
int32_t newIndex = aDirection < 0 ? 0 : mTopRowIndex;
|
|
ScrollToRow(newIndex);
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::ScrollByLine(nsScrollbarFrame* aScrollbar, int32_t aDirection,
|
|
nsIScrollbarMediator::ScrollSnapMode aSnap)
|
|
{
|
|
// CSS Scroll Snapping is not enabled for XUL, aSnap is ignored
|
|
MOZ_ASSERT(aScrollbar != nullptr);
|
|
ScrollByLines(aDirection);
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::RepeatButtonScroll(nsScrollbarFrame* aScrollbar)
|
|
{
|
|
ScrollParts parts = GetScrollParts();
|
|
int32_t increment = aScrollbar->GetIncrement();
|
|
int32_t direction = 0;
|
|
if (increment < 0) {
|
|
direction = -1;
|
|
} else if (increment > 0) {
|
|
direction = 1;
|
|
}
|
|
bool isHorizontal = aScrollbar->IsHorizontal();
|
|
|
|
nsWeakFrame weakFrame(this);
|
|
if (isHorizontal) {
|
|
int32_t curpos = aScrollbar->MoveToNewPosition();
|
|
if (weakFrame.IsAlive()) {
|
|
ScrollHorzInternal(parts, curpos);
|
|
}
|
|
} else {
|
|
ScrollToRowInternal(parts, mTopRowIndex+direction);
|
|
}
|
|
|
|
if (weakFrame.IsAlive() && mScrollbarActivity) {
|
|
mScrollbarActivity->ActivityOccurred();
|
|
}
|
|
if (weakFrame.IsAlive()) {
|
|
UpdateScrollbars(parts);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::ThumbMoved(nsScrollbarFrame* aScrollbar,
|
|
nscoord aOldPos,
|
|
nscoord aNewPos)
|
|
{
|
|
ScrollParts parts = GetScrollParts();
|
|
|
|
if (aOldPos == aNewPos)
|
|
return;
|
|
|
|
nsWeakFrame weakFrame(this);
|
|
|
|
// Vertical Scrollbar
|
|
if (parts.mVScrollbar == aScrollbar) {
|
|
nscoord rh = nsPresContext::AppUnitsToIntCSSPixels(mRowHeight);
|
|
nscoord newIndex = nsPresContext::AppUnitsToIntCSSPixels(aNewPos);
|
|
nscoord newrow = newIndex/rh;
|
|
ScrollInternal(parts, newrow);
|
|
// Horizontal Scrollbar
|
|
} else if (parts.mHScrollbar == aScrollbar) {
|
|
int32_t newIndex = nsPresContext::AppUnitsToIntCSSPixels(aNewPos);
|
|
ScrollHorzInternal(parts, newIndex);
|
|
}
|
|
if (weakFrame.IsAlive()) {
|
|
UpdateScrollbars(parts);
|
|
}
|
|
}
|
|
|
|
// The style cache.
|
|
nsStyleContext*
|
|
nsTreeBodyFrame::GetPseudoStyleContext(nsIAtom* aPseudoElement)
|
|
{
|
|
return mStyleCache.GetStyleContext(this, PresContext(), mContent,
|
|
mStyleContext, aPseudoElement,
|
|
mScratchArray);
|
|
}
|
|
|
|
// Our comparator for resolving our complex pseudos
|
|
bool
|
|
nsTreeBodyFrame::PseudoMatches(nsCSSSelector* aSelector)
|
|
{
|
|
// Iterate the class list. For each item in the list, see if
|
|
// it is contained in our scratch array. If we have a miss, then
|
|
// we aren't a match. If all items in the class list are
|
|
// present in the scratch array, then we have a match.
|
|
nsAtomList* curr = aSelector->mClassList;
|
|
while (curr) {
|
|
if (!mScratchArray.Contains(curr->mAtom))
|
|
return false;
|
|
curr = curr->mNext;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
nsIContent*
|
|
nsTreeBodyFrame::GetBaseElement()
|
|
{
|
|
nsIFrame* parent = GetParent();
|
|
while (parent) {
|
|
nsIContent* content = parent->GetContent();
|
|
if (content) {
|
|
dom::NodeInfo* ni = content->NodeInfo();
|
|
|
|
if (ni->Equals(nsGkAtoms::tree, kNameSpaceID_XUL) ||
|
|
(ni->Equals(nsGkAtoms::select) &&
|
|
content->IsHTMLElement()))
|
|
return content;
|
|
}
|
|
|
|
parent = parent->GetParent();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::ClearStyleAndImageCaches()
|
|
{
|
|
mStyleCache.Clear();
|
|
CancelImageRequests();
|
|
mImageCache.Clear();
|
|
return NS_OK;
|
|
}
|
|
|
|
/* virtual */ void
|
|
nsTreeBodyFrame::DidSetStyleContext(nsStyleContext* aOldStyleContext)
|
|
{
|
|
nsLeafBoxFrame::DidSetStyleContext(aOldStyleContext);
|
|
|
|
// Clear the style cache; the pointers are no longer even valid
|
|
mStyleCache.Clear();
|
|
// XXX The following is hacky, but it's not incorrect,
|
|
// and appears to fix a few bugs with style changes, like text zoom and
|
|
// dpi changes
|
|
mIndentation = GetIndentation();
|
|
mRowHeight = GetRowHeight();
|
|
mStringWidth = -1;
|
|
}
|
|
|
|
bool
|
|
nsTreeBodyFrame::OffsetForHorzScroll(nsRect& rect, bool clip)
|
|
{
|
|
rect.x -= mHorzPosition;
|
|
|
|
// Scrolled out before
|
|
if (rect.XMost() <= mInnerBox.x)
|
|
return false;
|
|
|
|
// Scrolled out after
|
|
if (rect.x > mInnerBox.XMost())
|
|
return false;
|
|
|
|
if (clip) {
|
|
nscoord leftEdge = std::max(rect.x, mInnerBox.x);
|
|
nscoord rightEdge = std::min(rect.XMost(), mInnerBox.XMost());
|
|
rect.x = leftEdge;
|
|
rect.width = rightEdge - leftEdge;
|
|
|
|
// Should have returned false above
|
|
NS_ASSERTION(rect.width >= 0, "horz scroll code out of sync");
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
nsTreeBodyFrame::CanAutoScroll(int32_t aRowIndex)
|
|
{
|
|
// Check first for partially visible last row.
|
|
if (aRowIndex == mRowCount - 1) {
|
|
nscoord y = mInnerBox.y + (aRowIndex - mTopRowIndex) * mRowHeight;
|
|
if (y < mInnerBox.height && y + mRowHeight > mInnerBox.height)
|
|
return true;
|
|
}
|
|
|
|
if (aRowIndex > 0 && aRowIndex < mRowCount - 1)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
// Given a dom event, figure out which row in the tree the mouse is over,
|
|
// if we should drop before/after/on that row or we should auto-scroll.
|
|
// Doesn't query the content about if the drag is allowable, that's done elsewhere.
|
|
//
|
|
// For containers, we break up the vertical space of the row as follows: if in
|
|
// the topmost 25%, the drop is _before_ the row the mouse is over; if in the
|
|
// last 25%, _after_; in the middle 50%, we consider it a drop _on_ the container.
|
|
//
|
|
// For non-containers, if the mouse is in the top 50% of the row, the drop is
|
|
// _before_ and the bottom 50% _after_
|
|
void
|
|
nsTreeBodyFrame::ComputeDropPosition(WidgetGUIEvent* aEvent,
|
|
int32_t* aRow,
|
|
int16_t* aOrient,
|
|
int16_t* aScrollLines)
|
|
{
|
|
*aOrient = -1;
|
|
*aScrollLines = 0;
|
|
|
|
// Convert the event's point to our coordinates. We want it in
|
|
// the coordinates of our inner box's coordinates.
|
|
nsPoint pt = nsLayoutUtils::GetEventCoordinatesRelativeTo(aEvent, this);
|
|
int32_t xTwips = pt.x - mInnerBox.x;
|
|
int32_t yTwips = pt.y - mInnerBox.y;
|
|
|
|
*aRow = GetRowAt(xTwips, yTwips);
|
|
if (*aRow >=0) {
|
|
// Compute the top/bottom of the row in question.
|
|
int32_t yOffset = yTwips - mRowHeight * (*aRow - mTopRowIndex);
|
|
|
|
bool isContainer = false;
|
|
mView->IsContainer (*aRow, &isContainer);
|
|
if (isContainer) {
|
|
// for a container, use a 25%/50%/25% breakdown
|
|
if (yOffset < mRowHeight / 4)
|
|
*aOrient = nsITreeView::DROP_BEFORE;
|
|
else if (yOffset > mRowHeight - (mRowHeight / 4))
|
|
*aOrient = nsITreeView::DROP_AFTER;
|
|
else
|
|
*aOrient = nsITreeView::DROP_ON;
|
|
}
|
|
else {
|
|
// for a non-container use a 50%/50% breakdown
|
|
if (yOffset < mRowHeight / 2)
|
|
*aOrient = nsITreeView::DROP_BEFORE;
|
|
else
|
|
*aOrient = nsITreeView::DROP_AFTER;
|
|
}
|
|
}
|
|
|
|
if (CanAutoScroll(*aRow)) {
|
|
// Get the max value from the look and feel service.
|
|
int32_t scrollLinesMax =
|
|
LookAndFeel::GetInt(LookAndFeel::eIntID_TreeScrollLinesMax, 0);
|
|
scrollLinesMax--;
|
|
if (scrollLinesMax < 0)
|
|
scrollLinesMax = 0;
|
|
|
|
// Determine if we're w/in a margin of the top/bottom of the tree during a drag.
|
|
// This will ultimately cause us to scroll, but that's done elsewhere.
|
|
nscoord height = (3 * mRowHeight) / 4;
|
|
if (yTwips < height) {
|
|
// scroll up
|
|
*aScrollLines = NSToIntRound(-scrollLinesMax * (1 - (float)yTwips / height) - 1);
|
|
}
|
|
else if (yTwips > mRect.height - height) {
|
|
// scroll down
|
|
*aScrollLines = NSToIntRound(scrollLinesMax * (1 - (float)(mRect.height - yTwips) / height) + 1);
|
|
}
|
|
}
|
|
} // ComputeDropPosition
|
|
|
|
void
|
|
nsTreeBodyFrame::OpenCallback(nsITimer *aTimer, void *aClosure)
|
|
{
|
|
nsTreeBodyFrame* self = static_cast<nsTreeBodyFrame*>(aClosure);
|
|
if (self) {
|
|
aTimer->Cancel();
|
|
self->mSlots->mTimer = nullptr;
|
|
|
|
if (self->mSlots->mDropRow >= 0) {
|
|
self->mSlots->mArray.AppendElement(self->mSlots->mDropRow);
|
|
self->mView->ToggleOpenState(self->mSlots->mDropRow);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::CloseCallback(nsITimer *aTimer, void *aClosure)
|
|
{
|
|
nsTreeBodyFrame* self = static_cast<nsTreeBodyFrame*>(aClosure);
|
|
if (self) {
|
|
aTimer->Cancel();
|
|
self->mSlots->mTimer = nullptr;
|
|
|
|
for (uint32_t i = self->mSlots->mArray.Length(); i--; ) {
|
|
if (self->mView)
|
|
self->mView->ToggleOpenState(self->mSlots->mArray[i]);
|
|
}
|
|
self->mSlots->mArray.Clear();
|
|
}
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::LazyScrollCallback(nsITimer *aTimer, void *aClosure)
|
|
{
|
|
nsTreeBodyFrame* self = static_cast<nsTreeBodyFrame*>(aClosure);
|
|
if (self) {
|
|
aTimer->Cancel();
|
|
self->mSlots->mTimer = nullptr;
|
|
|
|
if (self->mView) {
|
|
// Set a new timer to scroll the tree repeatedly.
|
|
self->CreateTimer(LookAndFeel::eIntID_TreeScrollDelay,
|
|
ScrollCallback, nsITimer::TYPE_REPEATING_SLACK,
|
|
getter_AddRefs(self->mSlots->mTimer));
|
|
self->ScrollByLines(self->mSlots->mScrollLines);
|
|
// ScrollByLines may have deleted |self|.
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::ScrollCallback(nsITimer *aTimer, void *aClosure)
|
|
{
|
|
nsTreeBodyFrame* self = static_cast<nsTreeBodyFrame*>(aClosure);
|
|
if (self) {
|
|
// Don't scroll if we are already at the top or bottom of the view.
|
|
if (self->mView && self->CanAutoScroll(self->mSlots->mDropRow)) {
|
|
self->ScrollByLines(self->mSlots->mScrollLines);
|
|
}
|
|
else {
|
|
aTimer->Cancel();
|
|
self->mSlots->mTimer = nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTreeBodyFrame::ScrollEvent::Run()
|
|
{
|
|
if (mInner) {
|
|
mInner->FireScrollEvent();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
void
|
|
nsTreeBodyFrame::FireScrollEvent()
|
|
{
|
|
mScrollEvent.Forget();
|
|
WidgetGUIEvent event(true, eScroll, nullptr);
|
|
// scroll events fired at elements don't bubble
|
|
event.mFlags.mBubbles = false;
|
|
EventDispatcher::Dispatch(GetContent(), PresContext(), &event);
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::PostScrollEvent()
|
|
{
|
|
if (mScrollEvent.IsPending())
|
|
return;
|
|
|
|
RefPtr<ScrollEvent> ev = new ScrollEvent(this);
|
|
if (NS_FAILED(NS_DispatchToCurrentThread(ev))) {
|
|
NS_WARNING("failed to dispatch ScrollEvent");
|
|
} else {
|
|
mScrollEvent = ev;
|
|
}
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::ScrollbarActivityStarted() const
|
|
{
|
|
if (mScrollbarActivity) {
|
|
mScrollbarActivity->ActivityStarted();
|
|
}
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::ScrollbarActivityStopped() const
|
|
{
|
|
if (mScrollbarActivity) {
|
|
mScrollbarActivity->ActivityStopped();
|
|
}
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::DetachImageListeners()
|
|
{
|
|
mCreatedListeners.Clear();
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::RemoveTreeImageListener(nsTreeImageListener* aListener)
|
|
{
|
|
if (aListener) {
|
|
mCreatedListeners.RemoveEntry(aListener);
|
|
}
|
|
}
|
|
|
|
#ifdef ACCESSIBILITY
|
|
void
|
|
nsTreeBodyFrame::FireRowCountChangedEvent(int32_t aIndex, int32_t aCount)
|
|
{
|
|
nsCOMPtr<nsIContent> content(GetBaseElement());
|
|
if (!content)
|
|
return;
|
|
|
|
nsCOMPtr<nsIDOMDocument> domDoc = do_QueryInterface(content->OwnerDoc());
|
|
if (!domDoc)
|
|
return;
|
|
|
|
nsCOMPtr<nsIDOMEvent> event;
|
|
domDoc->CreateEvent(NS_LITERAL_STRING("customevent"),
|
|
getter_AddRefs(event));
|
|
|
|
nsCOMPtr<nsIDOMCustomEvent> treeEvent(do_QueryInterface(event));
|
|
if (!treeEvent)
|
|
return;
|
|
|
|
nsCOMPtr<nsIWritablePropertyBag2> propBag(
|
|
do_CreateInstance("@mozilla.org/hash-property-bag;1"));
|
|
if (!propBag)
|
|
return;
|
|
|
|
// Set 'index' data - the row index rows are changed from.
|
|
propBag->SetPropertyAsInt32(NS_LITERAL_STRING("index"), aIndex);
|
|
|
|
// Set 'count' data - the number of changed rows.
|
|
propBag->SetPropertyAsInt32(NS_LITERAL_STRING("count"), aCount);
|
|
|
|
RefPtr<nsVariant> detailVariant(new nsVariant());
|
|
|
|
detailVariant->SetAsISupports(propBag);
|
|
treeEvent->InitCustomEvent(NS_LITERAL_STRING("TreeRowCountChanged"),
|
|
true, false, detailVariant);
|
|
|
|
event->SetTrusted(true);
|
|
|
|
RefPtr<AsyncEventDispatcher> asyncDispatcher =
|
|
new AsyncEventDispatcher(content, event);
|
|
asyncDispatcher->PostDOMEvent();
|
|
}
|
|
|
|
void
|
|
nsTreeBodyFrame::FireInvalidateEvent(int32_t aStartRowIdx, int32_t aEndRowIdx,
|
|
nsITreeColumn *aStartCol,
|
|
nsITreeColumn *aEndCol)
|
|
{
|
|
nsCOMPtr<nsIContent> content(GetBaseElement());
|
|
if (!content)
|
|
return;
|
|
|
|
nsCOMPtr<nsIDOMDocument> domDoc = do_QueryInterface(content->OwnerDoc());
|
|
if (!domDoc)
|
|
return;
|
|
|
|
nsCOMPtr<nsIDOMEvent> event;
|
|
domDoc->CreateEvent(NS_LITERAL_STRING("customevent"),
|
|
getter_AddRefs(event));
|
|
|
|
nsCOMPtr<nsIDOMCustomEvent> treeEvent(do_QueryInterface(event));
|
|
if (!treeEvent)
|
|
return;
|
|
|
|
nsCOMPtr<nsIWritablePropertyBag2> propBag(
|
|
do_CreateInstance("@mozilla.org/hash-property-bag;1"));
|
|
if (!propBag)
|
|
return;
|
|
|
|
if (aStartRowIdx != -1 && aEndRowIdx != -1) {
|
|
// Set 'startrow' data - the start index of invalidated rows.
|
|
propBag->SetPropertyAsInt32(NS_LITERAL_STRING("startrow"),
|
|
aStartRowIdx);
|
|
|
|
// Set 'endrow' data - the end index of invalidated rows.
|
|
propBag->SetPropertyAsInt32(NS_LITERAL_STRING("endrow"),
|
|
aEndRowIdx);
|
|
}
|
|
|
|
if (aStartCol && aEndCol) {
|
|
// Set 'startcolumn' data - the start index of invalidated rows.
|
|
int32_t startColIdx = 0;
|
|
nsresult rv = aStartCol->GetIndex(&startColIdx);
|
|
if (NS_FAILED(rv))
|
|
return;
|
|
|
|
propBag->SetPropertyAsInt32(NS_LITERAL_STRING("startcolumn"),
|
|
startColIdx);
|
|
|
|
// Set 'endcolumn' data - the start index of invalidated rows.
|
|
int32_t endColIdx = 0;
|
|
rv = aEndCol->GetIndex(&endColIdx);
|
|
if (NS_FAILED(rv))
|
|
return;
|
|
|
|
propBag->SetPropertyAsInt32(NS_LITERAL_STRING("endcolumn"),
|
|
endColIdx);
|
|
}
|
|
|
|
RefPtr<nsVariant> detailVariant(new nsVariant());
|
|
|
|
detailVariant->SetAsISupports(propBag);
|
|
treeEvent->InitCustomEvent(NS_LITERAL_STRING("TreeInvalidated"),
|
|
true, false, detailVariant);
|
|
|
|
event->SetTrusted(true);
|
|
|
|
RefPtr<AsyncEventDispatcher> asyncDispatcher =
|
|
new AsyncEventDispatcher(content, event);
|
|
asyncDispatcher->PostDOMEvent();
|
|
}
|
|
#endif
|
|
|
|
class nsOverflowChecker : public nsRunnable
|
|
{
|
|
public:
|
|
explicit nsOverflowChecker(nsTreeBodyFrame* aFrame) : mFrame(aFrame) {}
|
|
NS_IMETHOD Run() override
|
|
{
|
|
if (mFrame.IsAlive()) {
|
|
nsTreeBodyFrame* tree = static_cast<nsTreeBodyFrame*>(mFrame.GetFrame());
|
|
nsTreeBodyFrame::ScrollParts parts = tree->GetScrollParts();
|
|
tree->CheckOverflow(parts);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
private:
|
|
nsWeakFrame mFrame;
|
|
};
|
|
|
|
bool
|
|
nsTreeBodyFrame::FullScrollbarsUpdate(bool aNeedsFullInvalidation)
|
|
{
|
|
ScrollParts parts = GetScrollParts();
|
|
nsWeakFrame weakFrame(this);
|
|
nsWeakFrame weakColumnsFrame(parts.mColumnsFrame);
|
|
UpdateScrollbars(parts);
|
|
NS_ENSURE_TRUE(weakFrame.IsAlive(), false);
|
|
if (aNeedsFullInvalidation) {
|
|
Invalidate();
|
|
}
|
|
InvalidateScrollbars(parts, weakColumnsFrame);
|
|
NS_ENSURE_TRUE(weakFrame.IsAlive(), false);
|
|
|
|
// Overflow checking dispatches synchronous events, which can cause infinite
|
|
// recursion during reflow. Do the first overflow check synchronously, but
|
|
// force any nested checks to round-trip through the event loop. See bug
|
|
// 905909.
|
|
RefPtr<nsOverflowChecker> checker = new nsOverflowChecker(this);
|
|
if (!mCheckingOverflow) {
|
|
nsContentUtils::AddScriptRunner(checker);
|
|
} else {
|
|
NS_DispatchToCurrentThread(checker);
|
|
}
|
|
return weakFrame.IsAlive();
|
|
}
|
|
|
|
nsresult
|
|
nsTreeBodyFrame::OnImageIsAnimated(imgIRequest* aRequest)
|
|
{
|
|
nsLayoutUtils::RegisterImageRequest(PresContext(),
|
|
aRequest, nullptr);
|
|
|
|
return NS_OK;
|
|
}
|