gecko-dev/layout/generic/nsObjectFrame.h

223 lines
7.7 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsObjectFrame_h___
#define nsObjectFrame_h___
#include "nsHTMLParts.h"
#include "nsHTMLContainerFrame.h"
#include "nsPresContext.h"
#include "nsIPresShell.h"
#include "nsIPluginHost.h"
#include "nsplugin.h"
#include "nsIWidget.h"
#include "nsIObjectFrame.h"
#ifdef ACCESSIBILITY
class nsIAccessible;
#endif
class nsPluginInstanceOwner;
#define nsObjectFrameSuper nsHTMLContainerFrame
class nsObjectFrame : public nsObjectFrameSuper, public nsIObjectFrame {
public:
// nsISupports
NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
NS_IMETHOD SetInitialChildList(nsPresContext* aPresContext,
nsIAtom* aListName,
nsIFrame* aChildList);
NS_IMETHOD Init(nsPresContext* aPresContext,
nsIContent* aContent,
nsIFrame* aParent,
nsStyleContext* aContext,
nsIFrame* aPrevInFlow);
NS_IMETHOD Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
NS_IMETHOD DidReflow(nsPresContext* aPresContext,
const nsHTMLReflowState* aReflowState,
nsDidReflowStatus aStatus);
NS_IMETHOD Paint(nsPresContext* aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsFramePaintLayer aWhichLayer,
PRUint32 aFlags = 0);
NS_IMETHOD HandleEvent(nsPresContext* aPresContext,
nsGUIEvent* aEvent,
nsEventStatus* aEventStatus);
virtual nsIAtom* GetType() const;
virtual PRBool SupportsVisibilityHidden() { return PR_FALSE; }
virtual PRBool NeedsView() { return PR_TRUE; }
virtual nsresult CreateWidgetForView(nsIView* aView);
#ifdef DEBUG
NS_IMETHOD GetFrameName(nsAString& aResult) const;
#endif
NS_IMETHOD Destroy(nsPresContext* aPresContext);
NS_IMETHOD GetPluginInstance(nsIPluginInstance*& aPluginInstance);
/* fail on any requests to get a cursor from us because plugins set their own! see bug 118877 */
NS_IMETHOD GetCursor(const nsPoint& aPoint, nsIFrame::Cursor& aCursor)
{
return NS_ERROR_NOT_IMPLEMENTED;
};
//i18n helper
nsresult MakeAbsoluteURL(nsIURI* *aFullURI, nsString aSrc,
nsIURI* aBaseURI);
// accessibility support
#ifdef ACCESSIBILITY
NS_IMETHOD GetAccessible(nsIAccessible** aAccessible);
#ifdef XP_WIN
NS_IMETHOD GetPluginPort(HWND *aPort);
#endif
#endif
//local methods
nsresult CreateWidget(nscoord aWidth, nscoord aHeight, PRBool aViewOnly);
nsIURI* GetFullURL()
{
return mFullURL;
}
/**
* Get the MIME type used for rendering content for this frame.
* This may get the type via the URL's extension.
*/
NS_HIDDEN_(nsresult) GetMIMEType(nsACString& aType);
// for a given aRoot, this walks the frame tree looking for the next outFrame
static nsIObjectFrame* GetNextObjectFrame(nsPresContext* aPresContext,
nsIFrame* aRoot);
void FixUpURLS(const nsString &name, nsAString &value);
void PluginNotAvailable(const char *aMimeType);
// Returns true if this object frame links to content that we have
// no enabled plugin for, that means not even the default plugin.
PRBool IsBroken() const
{
return mIsBrokenPlugin;
}
virtual PRBool IsContainingBlock() const
{
// Broken plugins are containing blocks.
return IsBroken();
}
protected:
// nsISupports
NS_IMETHOD_(nsrefcnt) AddRef(void);
NS_IMETHOD_(nsrefcnt) Release(void);
virtual ~nsObjectFrame();
virtual PRIntn GetSkipSides() const;
// NOTE: This frame class does not inherit from |nsLeafFrame|, so
// this is not a virtual method implementation.
void GetDesiredSize(nsPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredSize);
nsresult InstantiateWidget(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aMetrics,
const nsHTMLReflowState& aReflowState,
nsCID aWidgetCID);
nsresult InstantiatePlugin(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aMetrics,
const nsHTMLReflowState& aReflowState,
nsIPluginHost* aPluginHost,
const char* aMimetype,
nsIURI* aURL);
nsresult ReinstantiatePlugin(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aMetrics,
const nsHTMLReflowState& aReflowState);
nsresult HandleChild(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aMetrics,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus,
nsIFrame* child);
PRBool IsFocusable(PRInt32 *aTabIndex = nsnull, PRBool aWithMouse = PR_FALSE);
// check attributes and optionally CSS to see if we should display anything
PRBool IsHidden(PRBool aCheckVisibilityStyle = PR_TRUE) const;
void NotifyContentObjectWrapper();
nsPoint GetWindowOriginInPixels(PRBool aWindowless);
void CreateDefaultFrames(nsPresContext *aPresContext,
nsHTMLReflowMetrics& aMetrics,
const nsHTMLReflowState& aReflowState);
friend class nsPluginInstanceOwner;
private:
nsPluginInstanceOwner *mInstanceOwner;
nsCOMPtr<nsIURI> mFullURL;
nsIFrame *mFirstChild;
nsCOMPtr<nsIWidget> mWidget;
nsRect mWindowlessRect;
#ifdef DEBUG
// For assertions that make it easier to determine if a crash is due
// to the underlying problem described in bug 136927.
PRBool mInstantiating;
#endif
PRPackedBool mIsBrokenPlugin;
};
#endif /* nsObjectFrame_h___ */