forked from mirrors/gecko-dev
		
	
		
			
				
	
	
		
			151 lines
		
	
	
	
		
			5.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			151 lines
		
	
	
	
		
			5.1 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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| 
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| #include "nsImageFrame.h"
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| 
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| #include "mozilla/MouseEvents.h"
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| #include "mozilla/PresShell.h"
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| #include "nsIFormControlFrame.h"
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| #include "nsPresContext.h"
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| #include "nsGkAtoms.h"
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| #include "nsStyleConsts.h"
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| #include "nsLayoutUtils.h"
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| #include "nsIContent.h"
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| 
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| using namespace mozilla;
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| 
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| class nsImageControlFrame final : public nsImageFrame,
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|                                   public nsIFormControlFrame {
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|  public:
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|   explicit nsImageControlFrame(ComputedStyle* aStyle,
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|                                nsPresContext* aPresContext);
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|   ~nsImageControlFrame() final;
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| 
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|   void Init(nsIContent* aContent, nsContainerFrame* aParent,
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|             nsIFrame* aPrevInFlow) final;
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| 
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|   NS_DECL_QUERYFRAME
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|   NS_DECL_FRAMEARENA_HELPERS(nsImageControlFrame)
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| 
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|   void Reflow(nsPresContext*, ReflowOutput&, const ReflowInput&,
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|               nsReflowStatus&) final;
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| 
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|   nsresult HandleEvent(nsPresContext*, WidgetGUIEvent*, nsEventStatus*) final;
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| 
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| #ifdef ACCESSIBILITY
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|   mozilla::a11y::AccType AccessibleType() final;
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| #endif
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| 
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| #ifdef DEBUG_FRAME_DUMP
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|   nsresult GetFrameName(nsAString& aResult) const final {
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|     return MakeFrameName(u"ImageControl"_ns, aResult);
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|   }
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| #endif
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| 
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|   Maybe<Cursor> GetCursor(const nsPoint&) final;
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| 
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|   // nsIFormContromFrame
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|   void SetFocus(bool aOn, bool aRepaint) final;
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|   nsresult SetFormProperty(nsAtom* aName, const nsAString& aValue) final;
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| };
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| 
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| nsImageControlFrame::nsImageControlFrame(ComputedStyle* aStyle,
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|                                          nsPresContext* aPresContext)
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|     : nsImageFrame(aStyle, aPresContext, kClassID) {}
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| 
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| nsImageControlFrame::~nsImageControlFrame() = default;
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| 
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| nsIFrame* NS_NewImageControlFrame(PresShell* aPresShell,
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|                                   ComputedStyle* aStyle) {
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|   return new (aPresShell)
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|       nsImageControlFrame(aStyle, aPresShell->GetPresContext());
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| }
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| 
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| NS_IMPL_FRAMEARENA_HELPERS(nsImageControlFrame)
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| 
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| void nsImageControlFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
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|                                nsIFrame* aPrevInFlow) {
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|   nsImageFrame::Init(aContent, aParent, aPrevInFlow);
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| 
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|   if (aPrevInFlow) {
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|     return;
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|   }
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| 
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|   mContent->SetProperty(nsGkAtoms::imageClickedPoint, new nsIntPoint(0, 0),
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|                         nsINode::DeleteProperty<nsIntPoint>);
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| }
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| 
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| NS_QUERYFRAME_HEAD(nsImageControlFrame)
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|   NS_QUERYFRAME_ENTRY(nsIFormControlFrame)
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| NS_QUERYFRAME_TAIL_INHERITING(nsImageFrame)
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| 
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| #ifdef ACCESSIBILITY
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| a11y::AccType nsImageControlFrame::AccessibleType() {
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|   if (mContent->IsAnyOfHTMLElements(nsGkAtoms::button, nsGkAtoms::input)) {
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|     return a11y::eHTMLButtonType;
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|   }
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| 
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|   return a11y::eNoType;
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| }
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| #endif
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| 
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| void nsImageControlFrame::Reflow(nsPresContext* aPresContext,
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|                                  ReflowOutput& aDesiredSize,
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|                                  const ReflowInput& aReflowInput,
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|                                  nsReflowStatus& aStatus) {
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|   DO_GLOBAL_REFLOW_COUNT("nsImageControlFrame");
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|   DISPLAY_REFLOW(aPresContext, this, aReflowInput, aDesiredSize, aStatus);
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|   MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
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|   return nsImageFrame::Reflow(aPresContext, aDesiredSize, aReflowInput,
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|                               aStatus);
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| }
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| 
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| nsresult nsImageControlFrame::HandleEvent(nsPresContext* aPresContext,
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|                                           WidgetGUIEvent* aEvent,
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|                                           nsEventStatus* aEventStatus) {
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|   NS_ENSURE_ARG_POINTER(aEventStatus);
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| 
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|   // Don't do anything if the event has already been handled by someone
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|   if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
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|     return NS_OK;
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|   }
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| 
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|   if (IsContentDisabled()) {
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|     return nsIFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
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|   }
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| 
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|   *aEventStatus = nsEventStatus_eIgnore;
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| 
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|   if (aEvent->mMessage == eMouseUp &&
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|       aEvent->AsMouseEvent()->mButton == MouseButton::ePrimary) {
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|     // Store click point for HTMLInputElement::SubmitNamesValues
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|     // Do this on MouseUp because the specs don't say and that's what IE does
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|     nsIntPoint* lastClickPoint = static_cast<nsIntPoint*>(
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|         mContent->GetProperty(nsGkAtoms::imageClickedPoint));
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|     if (lastClickPoint) {
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|       // normally lastClickedPoint is not null, as it's allocated in Init()
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|       nsPoint pt = nsLayoutUtils::GetEventCoordinatesRelativeTo(
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|           aEvent, RelativeTo{this});
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|       TranslateEventCoords(pt, *lastClickPoint);
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|     }
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|   }
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|   return nsImageFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
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| }
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| 
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| void nsImageControlFrame::SetFocus(bool aOn, bool aRepaint) {}
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| 
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| Maybe<nsIFrame::Cursor> nsImageControlFrame::GetCursor(const nsPoint&) {
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|   StyleCursorKind kind = StyleUI()->mCursor.keyword;
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|   if (kind == StyleCursorKind::Auto) {
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|     kind = StyleCursorKind::Pointer;
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|   }
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|   return Some(Cursor{kind, AllowCustomCursorImage::Yes});
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| }
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| 
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| nsresult nsImageControlFrame::SetFormProperty(nsAtom* aName,
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|                                               const nsAString& aValue) {
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|   return NS_OK;
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| }
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