зеркало из https://github.com/mozilla/gecko-dev.git
158 строки
4.3 KiB
C++
158 строки
4.3 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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#ifndef nsFileControlFrame_h___
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#define nsFileControlFrame_h___
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#include "mozilla/Attributes.h"
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#include "nsBlockFrame.h"
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#include "nsIFormControlFrame.h"
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#include "nsIDOMEventListener.h"
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#include "nsIAnonymousContentCreator.h"
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#include "nsCOMPtr.h"
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class nsTextControlFrame;
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class nsIDOMDragEvent;
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class nsFileControlFrame : public nsBlockFrame,
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public nsIFormControlFrame,
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public nsIAnonymousContentCreator
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{
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public:
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nsFileControlFrame(nsStyleContext* aContext);
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virtual void Init(nsIContent* aContent,
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nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) MOZ_OVERRIDE;
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists) MOZ_OVERRIDE;
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS
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// nsIFormControlFrame
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virtual nsresult SetFormProperty(nsIAtom* aName, const nsAString& aValue) MOZ_OVERRIDE;
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virtual void SetFocus(bool aOn, bool aRepaint) MOZ_OVERRIDE;
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virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
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virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
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#ifdef DEBUG_FRAME_DUMP
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virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
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#endif
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virtual nsresult AttributeChanged(int32_t aNameSpaceID,
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nsIAtom* aAttribute,
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int32_t aModType) MOZ_OVERRIDE;
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virtual void ContentStatesChanged(mozilla::EventStates aStates) MOZ_OVERRIDE;
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virtual bool IsLeaf() const MOZ_OVERRIDE
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{
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return true;
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}
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// nsIAnonymousContentCreator
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virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) MOZ_OVERRIDE;
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virtual void AppendAnonymousContentTo(nsBaseContentList& aElements,
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uint32_t aFilter) MOZ_OVERRIDE;
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#ifdef ACCESSIBILITY
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virtual mozilla::a11y::AccType AccessibleType() MOZ_OVERRIDE;
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#endif
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typedef bool (*AcceptAttrCallback)(const nsAString&, void*);
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protected:
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class MouseListener;
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friend class MouseListener;
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class MouseListener : public nsIDOMEventListener {
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public:
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NS_DECL_ISUPPORTS
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MouseListener(nsFileControlFrame* aFrame)
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: mFrame(aFrame)
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{}
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virtual ~MouseListener() {}
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void ForgetFrame() {
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mFrame = nullptr;
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}
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protected:
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nsFileControlFrame* mFrame;
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};
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class SyncDisabledStateEvent;
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friend class SyncDisabledStateEvent;
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class SyncDisabledStateEvent : public nsRunnable
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{
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public:
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SyncDisabledStateEvent(nsFileControlFrame* aFrame)
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: mFrame(aFrame)
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{}
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NS_IMETHOD Run() MOZ_OVERRIDE {
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nsFileControlFrame* frame = static_cast<nsFileControlFrame*>(mFrame.GetFrame());
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NS_ENSURE_STATE(frame);
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frame->SyncDisabledState();
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return NS_OK;
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}
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private:
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nsWeakFrame mFrame;
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};
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class DnDListener: public MouseListener {
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public:
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DnDListener(nsFileControlFrame* aFrame)
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: MouseListener(aFrame)
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{}
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NS_DECL_NSIDOMEVENTLISTENER
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static bool IsValidDropData(nsIDOMDragEvent* aEvent);
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};
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virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
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{
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return nsBlockFrame::IsFrameOfType(aFlags &
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~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
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}
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/**
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* The text box input.
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* @see nsFileControlFrame::CreateAnonymousContent
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*/
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nsCOMPtr<nsIContent> mTextContent;
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/**
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* The browse button input.
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* @see nsFileControlFrame::CreateAnonymousContent
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*/
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nsCOMPtr<nsIContent> mBrowse;
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/**
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* Drag and drop mouse listener.
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* This makes sure we don't get used after destruction.
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*/
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nsRefPtr<DnDListener> mMouseListener;
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protected:
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/**
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* Sync the disabled state of the content with anonymous children.
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*/
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void SyncDisabledState();
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/**
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* Updates the displayed value by using aValue.
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*/
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void UpdateDisplayedValue(const nsAString& aValue, bool aNotify);
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};
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#endif // nsFileControlFrame_h___
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