gecko/layout/forms/nsFileControlFrame.h
2012-07-30 17:20:58 +03:00

195 lines
5.0 KiB
C++

/* -*- 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/. */
#ifndef nsFileControlFrame_h___
#define nsFileControlFrame_h___
#include "nsBlockFrame.h"
#include "nsIFormControlFrame.h"
#include "nsIDOMEventListener.h"
#include "nsIAnonymousContentCreator.h"
#include "nsICapturePicker.h"
#include "nsCOMPtr.h"
class nsTextControlFrame;
class nsIDOMDragEvent;
class nsFileControlFrame : public nsBlockFrame,
public nsIFormControlFrame,
public nsIAnonymousContentCreator
{
public:
nsFileControlFrame(nsStyleContext* aContext);
NS_IMETHOD Init(nsIContent* aContent,
nsIFrame* aParent,
nsIFrame* aPrevInFlow);
NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists);
NS_DECL_QUERYFRAME
NS_DECL_FRAMEARENA_HELPERS
// nsIFormControlFrame
virtual nsresult SetFormProperty(nsIAtom* aName, const nsAString& aValue);
virtual nsresult GetFormProperty(nsIAtom* aName, nsAString& aValue) const;
virtual void SetFocus(bool aOn, bool aRepaint);
virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext);
virtual void DestroyFrom(nsIFrame* aDestructRoot);
#ifdef DEBUG
NS_IMETHOD GetFrameName(nsAString& aResult) const;
#endif
NS_IMETHOD AttributeChanged(PRInt32 aNameSpaceID,
nsIAtom* aAttribute,
PRInt32 aModType);
virtual void ContentStatesChanged(nsEventStates aStates);
virtual bool IsLeaf() const;
// nsIAnonymousContentCreator
virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements);
virtual void AppendAnonymousContentTo(nsBaseContentList& aElements,
PRUint32 aFilter);
#ifdef ACCESSIBILITY
virtual already_AddRefed<Accessible> CreateAccessible();
#endif
typedef bool (*AcceptAttrCallback)(const nsAString&, void*);
protected:
struct CaptureCallbackData {
nsICapturePicker* picker;
PRUint32 mode;
};
PRUint32 GetCaptureMode(const CaptureCallbackData& aData);
class MouseListener;
friend class MouseListener;
class MouseListener : public nsIDOMEventListener {
public:
NS_DECL_ISUPPORTS
MouseListener(nsFileControlFrame* aFrame)
: mFrame(aFrame)
{}
virtual ~MouseListener() {}
void ForgetFrame() {
mFrame = nullptr;
}
protected:
nsFileControlFrame* mFrame;
};
class SyncDisabledStateEvent;
friend class SyncDisabledStateEvent;
class SyncDisabledStateEvent : public nsRunnable
{
public:
SyncDisabledStateEvent(nsFileControlFrame* aFrame)
: mFrame(aFrame)
{}
NS_IMETHOD Run() {
nsFileControlFrame* frame = static_cast<nsFileControlFrame*>(mFrame.GetFrame());
NS_ENSURE_STATE(frame);
frame->SyncDisabledState();
return NS_OK;
}
private:
nsWeakFrame mFrame;
};
class CaptureMouseListener: public MouseListener {
public:
CaptureMouseListener(nsFileControlFrame* aFrame)
: MouseListener(aFrame)
, mMode(0)
{}
NS_DECL_NSIDOMEVENTLISTENER
PRUint32 mMode;
};
class BrowseMouseListener: public MouseListener {
public:
BrowseMouseListener(nsFileControlFrame* aFrame)
: MouseListener(aFrame)
{}
NS_DECL_NSIDOMEVENTLISTENER
static bool IsValidDropData(nsIDOMDragEvent* aEvent);
};
virtual bool IsFrameOfType(PRUint32 aFlags) const
{
return nsBlockFrame::IsFrameOfType(aFlags &
~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
}
virtual PRIntn GetSkipSides() const;
/**
* The text box input.
* @see nsFileControlFrame::CreateAnonymousContent
*/
nsCOMPtr<nsIContent> mTextContent;
/**
* The browse button input.
* @see nsFileControlFrame::CreateAnonymousContent
*/
nsCOMPtr<nsIContent> mBrowse;
/**
* The capture button input.
* @see nsFileControlFrame::CreateAnonymousContent
*/
nsCOMPtr<nsIContent> mCapture;
/**
* Our mouse listener. This makes sure we don't get used after destruction.
*/
nsRefPtr<BrowseMouseListener> mMouseListener;
nsRefPtr<CaptureMouseListener> mCaptureMouseListener;
protected:
/**
* @return the text control frame, or null if not found
*/
nsTextControlFrame* GetTextControlFrame();
/**
* Copy an attribute from file content to text and button content.
* @param aNameSpaceID namespace of attr
* @param aAttribute attribute atom
* @param aWhichControls which controls to apply to (SYNC_TEXT or SYNC_FILE)
*/
void SyncAttr(PRInt32 aNameSpaceID, nsIAtom* aAttribute,
PRInt32 aWhichControls);
/**
* Sync the disabled state of the content with anonymous children.
*/
void SyncDisabledState();
};
#endif