diff options
Diffstat (limited to 'layout/forms/nsImageControlFrame.cpp')
| -rw-r--r-- | layout/forms/nsImageControlFrame.cpp | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/layout/forms/nsImageControlFrame.cpp b/layout/forms/nsImageControlFrame.cpp new file mode 100644 index 000000000..212fa9356 --- /dev/null +++ b/layout/forms/nsImageControlFrame.cpp @@ -0,0 +1,206 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "nsImageFrame.h" +#include "nsIFormControlFrame.h" +#include "nsPresContext.h" +#include "nsGkAtoms.h" +#include "nsStyleConsts.h" +#include "nsFormControlFrame.h" +#include "nsLayoutUtils.h" +#include "mozilla/MouseEvents.h" +#include "nsIContent.h" + +using namespace mozilla; + +class nsImageControlFrame : public nsImageFrame, + public nsIFormControlFrame +{ +public: + explicit nsImageControlFrame(nsStyleContext* aContext); + ~nsImageControlFrame(); + + virtual void DestroyFrom(nsIFrame* aDestructRoot) override; + virtual void Init(nsIContent* aContent, + nsContainerFrame* aParent, + nsIFrame* aPrevInFlow) override; + + NS_DECL_QUERYFRAME + NS_DECL_FRAMEARENA_HELPERS + + virtual void Reflow(nsPresContext* aPresContext, + ReflowOutput& aDesiredSize, + const ReflowInput& aReflowInput, + nsReflowStatus& aStatus) override; + + virtual nsresult HandleEvent(nsPresContext* aPresContext, + WidgetGUIEvent* aEvent, + nsEventStatus* aEventStatus) override; + + virtual nsIAtom* GetType() const override; + +#ifdef ACCESSIBILITY + virtual mozilla::a11y::AccType AccessibleType() override; +#endif + +#ifdef DEBUG_FRAME_DUMP + virtual nsresult GetFrameName(nsAString& aResult) const override { + return MakeFrameName(NS_LITERAL_STRING("ImageControl"), aResult); + } +#endif + + virtual nsresult GetCursor(const nsPoint& aPoint, + nsIFrame::Cursor& aCursor) override; + // nsIFormContromFrame + virtual void SetFocus(bool aOn, bool aRepaint) override; + virtual nsresult SetFormProperty(nsIAtom* aName, + const nsAString& aValue) override; +}; + + +nsImageControlFrame::nsImageControlFrame(nsStyleContext* aContext) + : nsImageFrame(aContext) +{ +} + +nsImageControlFrame::~nsImageControlFrame() +{ +} + +void +nsImageControlFrame::DestroyFrom(nsIFrame* aDestructRoot) +{ + if (!GetPrevInFlow()) { + nsFormControlFrame::RegUnRegAccessKey(this, false); + } + nsImageFrame::DestroyFrom(aDestructRoot); +} + +nsIFrame* +NS_NewImageControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext) +{ + return new (aPresShell) nsImageControlFrame(aContext); +} + +NS_IMPL_FRAMEARENA_HELPERS(nsImageControlFrame) + +void +nsImageControlFrame::Init(nsIContent* aContent, + nsContainerFrame* aParent, + nsIFrame* aPrevInFlow) +{ + nsImageFrame::Init(aContent, aParent, aPrevInFlow); + + if (aPrevInFlow) { + return; + } + + mContent->SetProperty(nsGkAtoms::imageClickedPoint, + new nsIntPoint(0, 0), + nsINode::DeleteProperty<nsIntPoint>); +} + +NS_QUERYFRAME_HEAD(nsImageControlFrame) + NS_QUERYFRAME_ENTRY(nsIFormControlFrame) +NS_QUERYFRAME_TAIL_INHERITING(nsImageFrame) + +#ifdef ACCESSIBILITY +a11y::AccType +nsImageControlFrame::AccessibleType() +{ + if (mContent->IsAnyOfHTMLElements(nsGkAtoms::button, nsGkAtoms::input)) { + return a11y::eHTMLButtonType; + } + + return a11y::eNoType; +} +#endif + +nsIAtom* +nsImageControlFrame::GetType() const +{ + return nsGkAtoms::imageControlFrame; +} + +void +nsImageControlFrame::Reflow(nsPresContext* aPresContext, + ReflowOutput& aDesiredSize, + const ReflowInput& aReflowInput, + nsReflowStatus& aStatus) +{ + DO_GLOBAL_REFLOW_COUNT("nsImageControlFrame"); + DISPLAY_REFLOW(aPresContext, this, aReflowInput, aDesiredSize, aStatus); + if (!GetPrevInFlow() && (mState & NS_FRAME_FIRST_REFLOW)) { + nsFormControlFrame::RegUnRegAccessKey(this, true); + } + return nsImageFrame::Reflow(aPresContext, aDesiredSize, aReflowInput, aStatus); +} + +nsresult +nsImageControlFrame::HandleEvent(nsPresContext* aPresContext, + WidgetGUIEvent* aEvent, + nsEventStatus* aEventStatus) +{ + NS_ENSURE_ARG_POINTER(aEventStatus); + + // Don't do anything if the event has already been handled by someone + if (nsEventStatus_eConsumeNoDefault == *aEventStatus) { + return NS_OK; + } + + // do we have user-input style? + const nsStyleUserInterface* uiStyle = StyleUserInterface(); + if (uiStyle->mUserInput == StyleUserInput::None || + uiStyle->mUserInput == StyleUserInput::Disabled) { + return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus); + } + if (mContent->HasAttr(kNameSpaceID_None, nsGkAtoms::disabled)) { // XXX cache disabled + return NS_OK; + } + + *aEventStatus = nsEventStatus_eIgnore; + + if (aEvent->mMessage == eMouseUp && + aEvent->AsMouseEvent()->button == WidgetMouseEvent::eLeftButton) { + // Store click point for HTMLInputElement::SubmitNamesValues + // Do this on MouseUp because the specs don't say and that's what IE does + nsIntPoint* lastClickPoint = + static_cast<nsIntPoint*> + (mContent->GetProperty(nsGkAtoms::imageClickedPoint)); + if (lastClickPoint) { + // normally lastClickedPoint is not null, as it's allocated in Init() + nsPoint pt = nsLayoutUtils::GetEventCoordinatesRelativeTo(aEvent, this); + TranslateEventCoords(pt, *lastClickPoint); + } + } + return nsImageFrame::HandleEvent(aPresContext, aEvent, aEventStatus); +} + +void +nsImageControlFrame::SetFocus(bool aOn, bool aRepaint) +{ +} + +nsresult +nsImageControlFrame::GetCursor(const nsPoint& aPoint, + nsIFrame::Cursor& aCursor) +{ + // Use style defined cursor if one is provided, otherwise when + // the cursor style is "auto" we use the pointer cursor. + FillCursorInformationFromStyle(StyleUserInterface(), aCursor); + + if (NS_STYLE_CURSOR_AUTO == aCursor.mCursor) { + aCursor.mCursor = NS_STYLE_CURSOR_POINTER; + } + + return NS_OK; +} + +nsresult +nsImageControlFrame::SetFormProperty(nsIAtom* aName, + const nsAString& aValue) +{ + return NS_OK; +} |