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09e49168a2
This reuses the newly introduced infrastructure to track painting, and avoids painting if rendering is suppressed (such as for view transitions and so on). Rendering suppression of an in-process iframe needs more work because right now we paint in-process iframes as part of the top document's display list. Remove some old paint invalidation printf-debugging, which I suspect nobody has used in years. Profiler markers are strictly better :) Differential Revision: https://phabricator.services.mozilla.com/D245063
848 lines
26 KiB
C++
848 lines
26 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "nsViewManager.h"
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#include "mozilla/MouseEvents.h"
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#include "mozilla/PresShell.h"
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#include "mozilla/PresShellInlines.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/ProfilerLabels.h"
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#include "mozilla/StartupTimeline.h"
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#include "mozilla/dom/Document.h"
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#include "nsGfxCIID.h"
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#include "nsView.h"
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#include "nsCOMPtr.h"
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#include "nsRegion.h"
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#include "nsCOMArray.h"
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#include "nsXULPopupManager.h"
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#include "nsPresContext.h"
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#include "nsRefreshDriver.h"
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#include "nsContentUtils.h" // for nsAutoScriptBlocker
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#include "nsLayoutUtils.h"
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#include "gfxPlatform.h"
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#include "WindowRenderer.h"
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/**
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XXX TODO XXX
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DeCOMify newly private methods
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Optimize view storage
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*/
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/**
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A note about platform assumptions:
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We assume that a widget is z-ordered on top of its parent.
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We do NOT assume anything about the relative z-ordering of sibling widgets.
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Even though we ask for a specific z-order, we don't assume that widget
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z-ordering actually works.
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*/
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using namespace mozilla;
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using namespace mozilla::layers;
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#define NSCOORD_NONE INT32_MIN
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#undef DEBUG_MOUSE_LOCATION
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uint32_t nsViewManager::gLastUserEventTime = 0;
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nsViewManager::nsViewManager()
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: mPresShell(nullptr),
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mDelayedResize(NSCOORD_NONE, NSCOORD_NONE),
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mRootView(nullptr),
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mRefreshDisableCount(0),
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mPainting(false),
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mRecursiveRefreshPending(false),
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mHasPendingWidgetGeometryChanges(false) {}
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nsViewManager::~nsViewManager() {
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if (mRootView) {
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// Destroy any remaining views
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mRootView->Destroy();
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mRootView = nullptr;
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}
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mRootViewManager = nullptr;
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MOZ_RELEASE_ASSERT(!mPresShell,
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"Releasing nsViewManager without having called Destroy on "
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"the PresShell!");
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}
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// We don't hold a reference to the presentation context because it
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// holds a reference to us.
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nsresult nsViewManager::Init(nsDeviceContext* aContext) {
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MOZ_ASSERT(nullptr != aContext, "null ptr");
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if (nullptr == aContext) {
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return NS_ERROR_NULL_POINTER;
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}
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if (nullptr != mContext) {
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return NS_ERROR_ALREADY_INITIALIZED;
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}
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mContext = aContext;
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return NS_OK;
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}
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nsView* nsViewManager::CreateView(const nsRect& aBounds, nsView* aParent,
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ViewVisibility aVisibilityFlag) {
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auto* v = new nsView(this, aVisibilityFlag);
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v->SetParent(aParent);
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v->SetPosition(aBounds.X(), aBounds.Y());
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nsRect dim(0, 0, aBounds.Width(), aBounds.Height());
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v->SetDimensions(dim, false);
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return v;
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}
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void nsViewManager::SetRootView(nsView* aView) {
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MOZ_ASSERT(!aView || aView->GetViewManager() == this,
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"Unexpected viewmanager on root view");
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// Do NOT destroy the current root view. It's the caller's responsibility
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// to destroy it
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mRootView = aView;
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if (mRootView) {
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nsView* parent = mRootView->GetParent();
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if (parent) {
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// Calling InsertChild on |parent| will InvalidateHierarchy() on us, so
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// no need to set mRootViewManager ourselves here.
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parent->InsertChild(mRootView, nullptr);
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} else {
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InvalidateHierarchy();
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}
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}
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// Else don't touch mRootViewManager
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}
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void nsViewManager::GetWindowDimensions(nscoord* aWidth, nscoord* aHeight) {
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if (nullptr != mRootView) {
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if (mDelayedResize == nsSize(NSCOORD_NONE, NSCOORD_NONE)) {
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nsRect dim = mRootView->GetDimensions();
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*aWidth = dim.Width();
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*aHeight = dim.Height();
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} else {
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*aWidth = mDelayedResize.width;
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*aHeight = mDelayedResize.height;
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}
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} else {
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*aWidth = 0;
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*aHeight = 0;
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}
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}
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void nsViewManager::DoSetWindowDimensions(nscoord aWidth, nscoord aHeight) {
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nsRect oldDim = mRootView->GetDimensions();
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nsRect newDim(0, 0, aWidth, aHeight);
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// We care about resizes even when one dimension is already zero.
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if (oldDim.IsEqualEdges(newDim)) {
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return;
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}
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// Don't resize the widget. It is already being set elsewhere.
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mRootView->SetDimensions(newDim, true, false);
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if (RefPtr<PresShell> presShell = mPresShell) {
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presShell->ResizeReflow(aWidth, aHeight);
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}
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}
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bool nsViewManager::ShouldDelayResize() const {
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MOZ_ASSERT(mRootView);
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if (!mRootView->IsEffectivelyVisible() || !mPresShell ||
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!mPresShell->IsVisible()) {
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return true;
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}
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if (nsRefreshDriver* rd = mPresShell->GetRefreshDriver()) {
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if (rd->IsResizeSuppressed()) {
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return true;
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}
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}
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return false;
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}
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void nsViewManager::SetWindowDimensions(nscoord aWidth, nscoord aHeight,
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bool aDelayResize) {
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if (mRootView) {
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if (!ShouldDelayResize() && !aDelayResize) {
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if (mDelayedResize != nsSize(NSCOORD_NONE, NSCOORD_NONE) &&
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mDelayedResize != nsSize(aWidth, aHeight)) {
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// We have a delayed resize; that now obsolete size may already have
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// been flushed to the PresContext so we need to update the PresContext
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// with the new size because if the new size is exactly the same as the
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// root view's current size then DoSetWindowDimensions will not
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// request a resize reflow (which would correct it). See bug 617076.
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mDelayedResize = nsSize(aWidth, aHeight);
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FlushDelayedResize();
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}
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mDelayedResize.SizeTo(NSCOORD_NONE, NSCOORD_NONE);
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DoSetWindowDimensions(aWidth, aHeight);
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} else {
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mDelayedResize.SizeTo(aWidth, aHeight);
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if (mPresShell) {
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mPresShell->SetNeedStyleFlush();
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mPresShell->SetNeedLayoutFlush();
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}
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}
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}
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}
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void nsViewManager::FlushDelayedResize() {
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if (mDelayedResize != nsSize(NSCOORD_NONE, NSCOORD_NONE)) {
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DoSetWindowDimensions(mDelayedResize.width, mDelayedResize.height);
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mDelayedResize.SizeTo(NSCOORD_NONE, NSCOORD_NONE);
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}
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}
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// Convert aIn from being relative to and in appunits of aFromView, to being
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// relative to and in appunits of aToView.
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static nsRect ConvertRectBetweenViews(const nsRect& aIn, nsView* aFromView,
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nsView* aToView) {
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nsRect out = aIn;
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out.MoveBy(aFromView->GetOffsetTo(aToView));
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out = out.ScaleToOtherAppUnitsRoundOut(
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aFromView->GetViewManager()->AppUnitsPerDevPixel(),
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aToView->GetViewManager()->AppUnitsPerDevPixel());
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return out;
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}
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nsView* nsViewManager::GetDisplayRootFor(nsView* aView) {
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nsView* displayRoot = aView;
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for (;;) {
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nsView* displayParent = displayRoot->GetParent();
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if (!displayParent) {
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return displayRoot;
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}
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// Any popup view is a display root.
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if (displayRoot->GetFrame() &&
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displayRoot->GetFrame()->IsMenuPopupFrame()) {
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return displayRoot;
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}
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displayRoot = displayParent;
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}
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}
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/**
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aRegion is given in device coordinates!!
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aContext may be null, in which case layers should be used for
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rendering.
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*/
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void nsViewManager::Refresh(nsView* aView,
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const LayoutDeviceIntRegion& aRegion) {
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NS_ASSERTION(aView->GetViewManager() == this, "wrong view manager");
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if (mPresShell && mPresShell->IsNeverPainting()) {
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return;
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}
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if (aRegion.IsEmpty()) {
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return;
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}
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nsIWidget* widget = aView->GetWidget();
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if (!widget) {
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return;
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}
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NS_ASSERTION(!IsPainting(), "recursive painting not permitted");
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if (IsPainting()) {
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RootViewManager()->mRecursiveRefreshPending = true;
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return;
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}
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{
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nsAutoScriptBlocker scriptBlocker;
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SetPainting(true);
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NS_ASSERTION(GetDisplayRootFor(aView) == aView,
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"Widgets that we paint must all be display roots");
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if (RefPtr<PresShell> presShell = mPresShell) {
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#ifdef MOZ_DUMP_PAINTING
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if (nsLayoutUtils::InvalidationDebuggingIsEnabled()) {
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printf_stderr("--COMPOSITE-- %p\n", presShell.get());
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}
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#endif
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WindowRenderer* renderer = widget->GetWindowRenderer();
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if (!renderer->NeedsWidgetInvalidation()) {
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renderer->FlushRendering(wr::RenderReasons::WIDGET);
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} else {
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presShell->SyncPaintFallback(aView);
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}
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#ifdef MOZ_DUMP_PAINTING
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if (nsLayoutUtils::InvalidationDebuggingIsEnabled()) {
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printf_stderr("--ENDCOMPOSITE--\n");
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}
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#endif
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mozilla::StartupTimeline::RecordOnce(
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mozilla::StartupTimeline::FIRST_PAINT);
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}
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SetPainting(false);
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}
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if (RootViewManager()->mRecursiveRefreshPending) {
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RootViewManager()->mRecursiveRefreshPending = false;
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InvalidateAllViews();
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}
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}
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void nsViewManager::ProcessPendingUpdatesForView(nsView* aView,
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bool aFlushDirtyRegion) {
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NS_ASSERTION(IsRootVM(), "Updates will be missed");
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if (!aView) {
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return;
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}
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RefPtr<PresShell> rootPresShell = mPresShell;
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AutoTArray<nsCOMPtr<nsIWidget>, 1> widgets;
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aView->GetViewManager()->ProcessPendingUpdatesRecurse(aView, widgets);
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for (uint32_t i = 0; i < widgets.Length(); ++i) {
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nsView* view = nsView::GetViewFor(widgets[i]);
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if (view) {
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if (view->mNeedsWindowPropertiesSync) {
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view->mNeedsWindowPropertiesSync = false;
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if (nsViewManager* vm = view->GetViewManager()) {
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if (PresShell* presShell = vm->GetPresShell()) {
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presShell->SyncWindowProperties(/* aSync */ true);
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}
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}
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}
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}
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view = nsView::GetViewFor(widgets[i]);
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if (view) {
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view->ResetWidgetBounds(false, true);
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}
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}
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if (rootPresShell->GetViewManager() != this) {
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return; // presentation might have been torn down
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}
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if (aFlushDirtyRegion) {
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nsAutoScriptBlocker scriptBlocker;
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SetPainting(true);
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for (uint32_t i = 0; i < widgets.Length(); ++i) {
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nsIWidget* widget = widgets[i];
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nsView* view = nsView::GetViewFor(widget);
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if (view) {
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RefPtr<nsViewManager> viewManager = view->GetViewManager();
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viewManager->ProcessPendingUpdatesPaint(MOZ_KnownLive(widget));
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}
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}
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SetPainting(false);
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}
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}
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void nsViewManager::ProcessPendingUpdatesRecurse(
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nsView* aView, AutoTArray<nsCOMPtr<nsIWidget>, 1>& aWidgets) {
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if (mPresShell && mPresShell->IsNeverPainting()) {
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return;
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}
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for (nsView* childView = aView->GetFirstChild(); childView;
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childView = childView->GetNextSibling()) {
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childView->GetViewManager()->ProcessPendingUpdatesRecurse(childView,
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aWidgets);
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}
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nsIWidget* widget = aView->GetWidget();
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if (widget) {
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aWidgets.AppendElement(widget);
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} else {
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FlushDirtyRegionToWidget(aView);
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}
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}
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void nsViewManager::ProcessPendingUpdatesPaint(nsIWidget* aWidget) {
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if (aWidget->NeedsPaint()) {
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// If an ancestor widget was hidden and then shown, we could
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// have a delayed resize to handle.
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for (RefPtr<nsViewManager> vm = this; vm;
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vm = vm->mRootView->GetParent()
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? vm->mRootView->GetParent()->GetViewManager()
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: nullptr) {
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if (vm->mDelayedResize != nsSize(NSCOORD_NONE, NSCOORD_NONE) &&
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vm->mRootView->IsEffectivelyVisible() && vm->mPresShell &&
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vm->mPresShell->IsVisible()) {
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vm->FlushDelayedResize();
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}
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}
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nsView* view = nsView::GetViewFor(aWidget);
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if (!view) {
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NS_ERROR("FlushDelayedResize destroyed the nsView?");
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return;
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}
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nsIWidgetListener* previousListener =
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aWidget->GetPreviouslyAttachedWidgetListener();
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if (previousListener && previousListener != view &&
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view->IsPrimaryFramePaintSuppressed()) {
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return;
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}
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if (RefPtr<PresShell> presShell = mPresShell) {
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#ifdef MOZ_DUMP_PAINTING
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if (nsLayoutUtils::InvalidationDebuggingIsEnabled()) {
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printf_stderr(
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"---- PAINT START ----PresShell(%p), nsView(%p), nsIWidget(%p)\n",
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presShell.get(), view, aWidget);
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}
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#endif
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presShell->PaintAndRequestComposite(view, PaintFlags::None);
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view->SetForcedRepaint(false);
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#ifdef MOZ_DUMP_PAINTING
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if (nsLayoutUtils::InvalidationDebuggingIsEnabled()) {
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printf_stderr("---- PAINT END ----\n");
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}
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#endif
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}
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}
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FlushDirtyRegionToWidget(nsView::GetViewFor(aWidget));
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}
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void nsViewManager::FlushDirtyRegionToWidget(nsView* aView) {
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NS_ASSERTION(aView->GetViewManager() == this,
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"FlushDirtyRegionToWidget called on view we don't own");
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if (!aView->IsDirty()) {
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return;
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}
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const nsRect dirtyRegion = aView->GetDimensions();
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nsView* nearestViewWithWidget = aView;
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while (!nearestViewWithWidget->HasWidget() &&
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nearestViewWithWidget->GetParent()) {
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nearestViewWithWidget = nearestViewWithWidget->GetParent();
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}
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nsRect r = ConvertRectBetweenViews(dirtyRegion, aView, nearestViewWithWidget);
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nsViewManager* widgetVM = nearestViewWithWidget->GetViewManager();
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widgetVM->InvalidateWidgetArea(nearestViewWithWidget, r);
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aView->SetIsDirty(false);
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}
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void nsViewManager::PostPendingUpdate() {
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nsViewManager* rootVM = RootViewManager();
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rootVM->mHasPendingWidgetGeometryChanges = true;
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if (rootVM->mPresShell) {
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rootVM->mPresShell->SetNeedLayoutFlush();
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rootVM->mPresShell->SchedulePaint();
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}
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}
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/**
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* @param aDamagedRegion this region, relative to aWidgetView, is invalidated in
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* every widget child of aWidgetView, plus aWidgetView's own widget
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*/
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void nsViewManager::InvalidateWidgetArea(nsView* aWidgetView,
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const nsRegion& aDamagedRegion) {
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NS_ASSERTION(aWidgetView->GetViewManager() == this,
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"InvalidateWidgetArea called on view we don't own");
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nsIWidget* widget = aWidgetView->GetWidget();
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#if 0
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nsRect dbgBounds = aDamagedRegion.GetBounds();
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printf("InvalidateWidgetArea view:%X (%d) widget:%X region: %d, %d, %d, %d\n",
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aWidgetView, aWidgetView->IsAttachedToTopLevel(),
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widget, dbgBounds.x, dbgBounds.y, dbgBounds.width, dbgBounds.height);
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#endif
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// If the widget is hidden, it don't cover nothing
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if (widget && !widget->IsVisible()) {
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return;
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}
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if (!widget) {
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// The root view or a scrolling view might not have a widget
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// (for example, during printing). We get here when we scroll
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// during printing to show selected options in a listbox, for example.
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return;
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}
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if (!aDamagedRegion.IsEmpty()) {
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for (auto iter = aDamagedRegion.RectIter(); !iter.Done(); iter.Next()) {
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LayoutDeviceIntRect bounds = ViewToWidget(aWidgetView, iter.Get());
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widget->Invalidate(bounds);
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}
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}
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}
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static bool ShouldIgnoreInvalidation(nsViewManager* aVM) {
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while (aVM) {
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PresShell* presShell = aVM->GetPresShell();
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if (!presShell || presShell->ShouldIgnoreInvalidation()) {
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return true;
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}
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nsView* view = aVM->GetRootView()->GetParent();
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aVM = view ? view->GetViewManager() : nullptr;
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}
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return false;
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}
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void nsViewManager::InvalidateView(nsView* aView) {
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// If painting is suppressed in the presshell or an ancestor drop all
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// invalidates, it will invalidate everything when it unsuppresses.
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if (ShouldIgnoreInvalidation(this)) {
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return;
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}
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NS_ASSERTION(aView->GetViewManager() == this,
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"InvalidateView called on view we don't own");
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if (aView->GetBounds().IsEmpty()) {
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return;
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}
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GetDisplayRootFor(aView)->SetIsDirty(true);
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}
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void nsViewManager::InvalidateAllViews() {
|
|
if (RootViewManager() != this) {
|
|
return RootViewManager()->InvalidateAllViews();
|
|
}
|
|
|
|
InvalidateViews(mRootView);
|
|
}
|
|
|
|
void nsViewManager::InvalidateViews(nsView* aView) {
|
|
// Invalidate this view.
|
|
InvalidateView(aView);
|
|
|
|
// Invalidate all children as well.
|
|
nsView* childView = aView->GetFirstChild();
|
|
while (nullptr != childView) {
|
|
childView->GetViewManager()->InvalidateViews(childView);
|
|
childView = childView->GetNextSibling();
|
|
}
|
|
}
|
|
|
|
void nsViewManager::WillPaintWindow(nsIWidget* aWidget) {
|
|
if (aWidget) {
|
|
nsView* view = nsView::GetViewFor(aWidget);
|
|
WindowRenderer* renderer = aWidget->GetWindowRenderer();
|
|
if (view &&
|
|
(view->ForcedRepaint() || !renderer->NeedsWidgetInvalidation())) {
|
|
ProcessPendingUpdates();
|
|
// Re-get the view pointer here since the ProcessPendingUpdates might have
|
|
// destroyed it during CallWillPaintOnObservers.
|
|
view = nsView::GetViewFor(aWidget);
|
|
if (view) {
|
|
view->SetForcedRepaint(false);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool nsViewManager::PaintWindow(nsIWidget* aWidget,
|
|
const LayoutDeviceIntRegion& aRegion) {
|
|
if (!aWidget || !mContext) return false;
|
|
|
|
NS_ASSERTION(
|
|
IsPaintingAllowed(),
|
|
"shouldn't be receiving paint events while painting is disallowed!");
|
|
|
|
// Get the view pointer here since NS_WILL_PAINT might have
|
|
// destroyed it during CallWillPaintOnObservers (bug 378273).
|
|
nsView* view = nsView::GetViewFor(aWidget);
|
|
if (view && !aRegion.IsEmpty()) {
|
|
Refresh(view, aRegion);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void nsViewManager::DidPaintWindow() {
|
|
if (RefPtr<PresShell> presShell = mPresShell) {
|
|
presShell->DidPaintWindow();
|
|
}
|
|
}
|
|
|
|
void nsViewManager::DispatchEvent(WidgetGUIEvent* aEvent, nsView* aView,
|
|
nsEventStatus* aStatus) {
|
|
AUTO_PROFILER_LABEL("nsViewManager::DispatchEvent", OTHER);
|
|
|
|
WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent();
|
|
if ((mouseEvent &&
|
|
// Ignore mouse events that we synthesize.
|
|
mouseEvent->mReason == WidgetMouseEvent::eReal &&
|
|
// Ignore mouse exit and enter (we'll get moves if the user
|
|
// is really moving the mouse) since we get them when we
|
|
// create and destroy widgets.
|
|
mouseEvent->mMessage != eMouseExitFromWidget &&
|
|
mouseEvent->mMessage != eMouseEnterIntoWidget) ||
|
|
aEvent->HasKeyEventMessage() || aEvent->HasIMEEventMessage()) {
|
|
gLastUserEventTime = PR_IntervalToMicroseconds(PR_IntervalNow());
|
|
}
|
|
|
|
// Find the view whose coordinates system we're in.
|
|
nsView* view = aView;
|
|
bool dispatchUsingCoordinates = aEvent->IsUsingCoordinates();
|
|
if (dispatchUsingCoordinates) {
|
|
// Will dispatch using coordinates. Pretty bogus but it's consistent
|
|
// with what presshell does.
|
|
view = GetDisplayRootFor(view);
|
|
}
|
|
|
|
// If the view has no frame, look for a view that does.
|
|
nsIFrame* frame = view->GetFrame();
|
|
if (!frame && (dispatchUsingCoordinates || aEvent->HasKeyEventMessage() ||
|
|
aEvent->IsIMERelatedEvent())) {
|
|
while (view && !view->GetFrame()) {
|
|
view = view->GetParent();
|
|
}
|
|
|
|
if (view) {
|
|
frame = view->GetFrame();
|
|
}
|
|
}
|
|
|
|
if (nullptr != frame) {
|
|
// Hold a refcount to the presshell. The continued existence of the
|
|
// presshell will delay deletion of this view hierarchy should the event
|
|
// want to cause its destruction in, say, some JavaScript event handler.
|
|
if (RefPtr<PresShell> presShell = view->GetViewManager()->GetPresShell()) {
|
|
presShell->HandleEvent(frame, aEvent, false, aStatus);
|
|
return;
|
|
}
|
|
}
|
|
|
|
*aStatus = nsEventStatus_eIgnore;
|
|
}
|
|
|
|
void nsViewManager::InsertChild(nsView* aParent, nsView* aChild,
|
|
nsView* aSibling, bool aAfter) {
|
|
MOZ_ASSERT(nullptr != aParent, "null ptr");
|
|
MOZ_ASSERT(nullptr != aChild, "null ptr");
|
|
NS_ASSERTION(aSibling == nullptr || aSibling->GetParent() == aParent,
|
|
"tried to insert view with invalid sibling");
|
|
NS_ASSERTION(!IsViewInserted(aChild),
|
|
"tried to insert an already-inserted view");
|
|
|
|
if ((nullptr != aParent) && (nullptr != aChild)) {
|
|
// if aAfter is set, we will insert the child after 'prev' (i.e. after 'kid'
|
|
// in document order, otherwise after 'kid' (i.e. before 'kid' in document
|
|
// order).
|
|
|
|
if (nullptr == aSibling) {
|
|
if (aAfter) {
|
|
// insert at end of document order, i.e., before first view
|
|
// this is the common case, by far
|
|
aParent->InsertChild(aChild, nullptr);
|
|
} else {
|
|
// insert at beginning of document order, i.e., after last view
|
|
nsView* kid = aParent->GetFirstChild();
|
|
nsView* prev = nullptr;
|
|
while (kid) {
|
|
prev = kid;
|
|
kid = kid->GetNextSibling();
|
|
}
|
|
// prev is last view or null if there are no children
|
|
aParent->InsertChild(aChild, prev);
|
|
}
|
|
} else {
|
|
nsView* kid = aParent->GetFirstChild();
|
|
nsView* prev = nullptr;
|
|
while (kid && aSibling != kid) {
|
|
// get the next sibling view
|
|
prev = kid;
|
|
kid = kid->GetNextSibling();
|
|
}
|
|
NS_ASSERTION(kid != nullptr, "couldn't find sibling in child list");
|
|
if (aAfter) {
|
|
// insert after 'kid' in document order, i.e. before in view order
|
|
aParent->InsertChild(aChild, prev);
|
|
} else {
|
|
// insert before 'kid' in document order, i.e. after in view order
|
|
aParent->InsertChild(aChild, kid);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void nsViewManager::RemoveChild(nsView* aChild) {
|
|
NS_ASSERTION(aChild, "aChild must not be null");
|
|
|
|
nsView* parent = aChild->GetParent();
|
|
|
|
if (nullptr != parent) {
|
|
NS_ASSERTION(
|
|
aChild->GetViewManager() == this || parent->GetViewManager() == this,
|
|
"wrong view manager");
|
|
parent->RemoveChild(aChild);
|
|
}
|
|
}
|
|
|
|
void nsViewManager::MoveViewTo(nsView* aView, nscoord aX, nscoord aY) {
|
|
NS_ASSERTION(aView->GetViewManager() == this, "wrong view manager");
|
|
aView->SetPosition(aX, aY);
|
|
}
|
|
|
|
void nsViewManager::ResizeView(nsView* aView, const nsRect& aRect) {
|
|
NS_ASSERTION(aView->GetViewManager() == this, "wrong view manager");
|
|
|
|
nsRect oldDimensions = aView->GetDimensions();
|
|
if (!oldDimensions.IsEqualEdges(aRect)) {
|
|
aView->SetDimensions(aRect, true);
|
|
}
|
|
|
|
// Note that if layout resizes the view and the view has a custom clip
|
|
// region set, then we expect layout to update the clip region too. Thus
|
|
// in the case where mClipRect has been optimized away to just be a null
|
|
// pointer, and this resize is implicitly changing the clip rect, it's OK
|
|
// because layout will change it back again if necessary.
|
|
}
|
|
|
|
void nsViewManager::SetViewVisibility(nsView* aView, ViewVisibility aVisible) {
|
|
NS_ASSERTION(aView->GetViewManager() == this, "wrong view manager");
|
|
|
|
if (aVisible != aView->GetVisibility()) {
|
|
aView->SetVisibility(aVisible);
|
|
}
|
|
}
|
|
|
|
bool nsViewManager::IsViewInserted(nsView* aView) {
|
|
if (mRootView == aView) {
|
|
return true;
|
|
}
|
|
if (aView->GetParent() == nullptr) {
|
|
return false;
|
|
}
|
|
nsView* view = aView->GetParent()->GetFirstChild();
|
|
while (view != nullptr) {
|
|
if (view == aView) {
|
|
return true;
|
|
}
|
|
view = view->GetNextSibling();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
nsViewManager* nsViewManager::IncrementDisableRefreshCount() {
|
|
if (!IsRootVM()) {
|
|
return RootViewManager()->IncrementDisableRefreshCount();
|
|
}
|
|
|
|
++mRefreshDisableCount;
|
|
|
|
return this;
|
|
}
|
|
|
|
void nsViewManager::DecrementDisableRefreshCount() {
|
|
NS_ASSERTION(IsRootVM(), "Should only be called on root");
|
|
--mRefreshDisableCount;
|
|
NS_ASSERTION(mRefreshDisableCount >= 0, "Invalid refresh disable count!");
|
|
}
|
|
|
|
nsIWidget* nsViewManager::GetRootWidget() const {
|
|
if (!mRootView) {
|
|
return nullptr;
|
|
}
|
|
if (mRootView->HasWidget()) {
|
|
return mRootView->GetWidget();
|
|
}
|
|
if (mRootView->GetParent()) {
|
|
return mRootView->GetParent()->GetViewManager()->GetRootWidget();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
LayoutDeviceIntRect nsViewManager::ViewToWidget(nsView* aView,
|
|
const nsRect& aRect) const {
|
|
NS_ASSERTION(aView->GetViewManager() == this, "wrong view manager");
|
|
|
|
// account for the view's origin not lining up with the widget's
|
|
nsRect rect = aRect + aView->ViewToWidgetOffset();
|
|
|
|
// finally, convert to device coordinates.
|
|
return LayoutDeviceIntRect::FromUnknownRect(
|
|
rect.ToOutsidePixels(AppUnitsPerDevPixel()));
|
|
}
|
|
|
|
void nsViewManager::IsPainting(bool& aIsPainting) {
|
|
aIsPainting = IsPainting();
|
|
}
|
|
|
|
void nsViewManager::ProcessPendingUpdates() {
|
|
if (!IsRootVM()) {
|
|
RefPtr<nsViewManager> rootViewManager = RootViewManager();
|
|
rootViewManager->ProcessPendingUpdates();
|
|
return;
|
|
}
|
|
|
|
// Flush things like reflows by calling WillPaint on observer presShells.
|
|
if (mPresShell) {
|
|
RefPtr<nsViewManager> strongThis(this);
|
|
CallWillPaintOnObservers();
|
|
|
|
ProcessPendingUpdatesForView(mRootView, true);
|
|
}
|
|
}
|
|
|
|
void nsViewManager::UpdateWidgetGeometry() {
|
|
if (!IsRootVM()) {
|
|
RefPtr<nsViewManager> rootViewManager = RootViewManager();
|
|
rootViewManager->UpdateWidgetGeometry();
|
|
return;
|
|
}
|
|
|
|
if (mHasPendingWidgetGeometryChanges) {
|
|
mHasPendingWidgetGeometryChanges = false;
|
|
ProcessPendingUpdatesForView(mRootView, false);
|
|
}
|
|
}
|
|
|
|
/* static */ void nsViewManager::CollectVMsForWillPaint(
|
|
nsView* aView, nsViewManager* aParentVM,
|
|
nsTArray<RefPtr<nsViewManager>>& aVMs) {
|
|
nsViewManager* vm = aView->GetViewManager();
|
|
if (vm != aParentVM) {
|
|
aVMs.AppendElement(vm);
|
|
}
|
|
|
|
for (nsView* child = aView->GetFirstChild(); child;
|
|
child = child->GetNextSibling()) {
|
|
CollectVMsForWillPaint(child, vm, aVMs);
|
|
}
|
|
}
|
|
|
|
void nsViewManager::CallWillPaintOnObservers() {
|
|
MOZ_ASSERT(IsRootVM(), "Must be root VM for this to be called!");
|
|
|
|
if (!mRootView) {
|
|
return;
|
|
}
|
|
|
|
AutoTArray<RefPtr<nsViewManager>, 2> VMs;
|
|
CollectVMsForWillPaint(mRootView, nullptr, VMs);
|
|
for (const auto& vm : VMs) {
|
|
if (vm->GetRootView() && vm->GetRootView()->IsEffectivelyVisible()) {
|
|
if (RefPtr<PresShell> presShell = vm->GetPresShell()) {
|
|
presShell->WillPaint();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void nsViewManager::GetLastUserEventTime(uint32_t& aTime) {
|
|
aTime = gLastUserEventTime;
|
|
}
|
|
|
|
void nsViewManager::InvalidateHierarchy() {
|
|
if (mRootView) {
|
|
mRootViewManager = nullptr;
|
|
nsView* parent = mRootView->GetParent();
|
|
if (parent) {
|
|
mRootViewManager = parent->GetViewManager()->RootViewManager();
|
|
NS_ASSERTION(mRootViewManager != this,
|
|
"Root view had a parent, but it has the same view manager");
|
|
}
|
|
// else, we are implicitly our own root view manager.
|
|
}
|
|
}
|