bd46e7911f
pres context git-svn-id: svn://10.0.0.236/trunk@51822 18797224-902f-48f8-a5cc-f745e15eee43
479 lines
19 KiB
C++
479 lines
19 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsGfxTextControlFrame_h___
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#define nsGfxTextControlFrame_h___
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#include "nsCOMPtr.h"
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#include "nsCWeakReference.h"
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#include "nsFormControlFrame.h"
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#include "nsTextControlFrame.h"
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#include "nsIDocumentLoaderObserver.h"
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#include "nsIEditor.h"
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#include "nsIDocumentObserver.h"
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#include "nsIDOMKeyListener.h"
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#include "nsIDOMMouseListener.h"
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#include "nsIDOMFocusListener.h"
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#include "nsIDOMSelectionListener.h"
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#include "nsIDOMDocument.h"
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#include "nsIPresContext.h"
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#include "nsIContent.h"
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#include "nsIDOMUIEvent.h"
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#include "nsHTMLValue.h"
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class nsIFrame;
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class nsIWebShell;
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class nsIDOMSelection;
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class nsGfxTextControlFrame;
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#define NS_IENDER_EVENT_LISTENER_IID \
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{/* e4bf05b0-457f-11d3-86ea-000064657374*/ \
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0xe4bf05b0, 0x457f, 0x11d3, \
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{0x86, 0xea, 0x0, 0x0, 0x64, 0x65, 0x73, 0x74} }
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/*******************************************************************************
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* EnderTempObserver XXX temporary until doc manager/loader is in place
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******************************************************************************/
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class EnderTempObserver : public nsIDocumentLoaderObserver
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{
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public:
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EnderTempObserver();
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virtual ~EnderTempObserver();
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NS_IMETHOD SetFrame(nsGfxTextControlFrame *aFrame);
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// nsISupports
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NS_DECL_ISUPPORTS
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// nsIDocumentLoaderObserver
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NS_IMETHOD OnStartDocumentLoad(nsIDocumentLoader* loader,
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nsIURI* aURL,
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const char* aCommand);
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NS_IMETHOD OnEndDocumentLoad(nsIDocumentLoader* loader,
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nsIChannel* channel,
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nsresult aStatus,
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nsIDocumentLoaderObserver * aObserver);
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NS_IMETHOD OnStartURLLoad(nsIDocumentLoader* loader,
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nsIChannel* channel,
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nsIContentViewer* aViewer);
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NS_IMETHOD OnProgressURLLoad(nsIDocumentLoader* loader,
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nsIChannel* channel,
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PRUint32 aProgress,
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PRUint32 aProgressMax);
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NS_IMETHOD OnStatusURLLoad(nsIDocumentLoader* loader,
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nsIChannel* channel,
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nsString& aMsg);
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NS_IMETHOD OnEndURLLoad(nsIDocumentLoader* loader,
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nsIChannel* channel,
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nsresult aStatus);
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NS_IMETHOD HandleUnknownContentType( nsIDocumentLoader* loader,
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nsIChannel* channel,
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const char *aContentType,
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const char *aCommand );
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protected:
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nsGfxTextControlFrame *mFrame; // not ref counted
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PRBool mFirstCall;
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};
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/*******************************************************************************
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* nsEnderDocumentObserver
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* This class responds to document changes
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******************************************************************************/
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class nsEnderDocumentObserver : public nsIDocumentObserver
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{
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public:
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nsEnderDocumentObserver();
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NS_IMETHOD SetFrame(nsGfxTextControlFrame *aFrame);
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virtual ~nsEnderDocumentObserver();
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// nsISupports
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NS_DECL_ISUPPORTS
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NS_IMETHOD BeginUpdate(nsIDocument *aDocument);
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NS_IMETHOD EndUpdate(nsIDocument *aDocument);
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NS_IMETHOD BeginLoad(nsIDocument *aDocument);
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NS_IMETHOD EndLoad(nsIDocument *aDocument);
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NS_IMETHOD BeginReflow(nsIDocument *aDocument, nsIPresShell* aShell);
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NS_IMETHOD EndReflow(nsIDocument *aDocument, nsIPresShell* aShell);
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NS_IMETHOD ContentChanged(nsIDocument *aDocument,
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nsIContent* aContent,
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nsISupports* aSubContent);
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NS_IMETHOD ContentStatesChanged(nsIDocument* aDocument,
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nsIContent* aContent1,
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nsIContent* aContent2);
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NS_IMETHOD AttributeChanged(nsIDocument *aDocument,
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nsIContent* aContent,
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PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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PRInt32 aHint);
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NS_IMETHOD ContentAppended(nsIDocument *aDocument,
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nsIContent* aContainer,
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PRInt32 aNewIndexInContainer);
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NS_IMETHOD ContentInserted(nsIDocument *aDocument,
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nsIContent* aContainer,
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nsIContent* aChild,
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PRInt32 aIndexInContainer);
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NS_IMETHOD ContentReplaced(nsIDocument *aDocument,
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nsIContent* aContainer,
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nsIContent* aOldChild,
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nsIContent* aNewChild,
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PRInt32 aIndexInContainer);
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NS_IMETHOD ContentRemoved(nsIDocument *aDocument,
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nsIContent* aContainer,
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nsIContent* aChild,
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PRInt32 aIndexInContainer);
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NS_IMETHOD StyleSheetAdded(nsIDocument *aDocument,
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nsIStyleSheet* aStyleSheet);
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NS_IMETHOD StyleSheetRemoved(nsIDocument *aDocument,
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nsIStyleSheet* aStyleSheet);
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NS_IMETHOD StyleSheetDisabledStateChanged(nsIDocument *aDocument,
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nsIStyleSheet* aStyleSheet,
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PRBool aDisabled);
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NS_IMETHOD StyleRuleChanged(nsIDocument *aDocument,
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nsIStyleSheet* aStyleSheet,
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nsIStyleRule* aStyleRule,
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PRInt32 aHint);
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NS_IMETHOD StyleRuleAdded(nsIDocument *aDocument,
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nsIStyleSheet* aStyleSheet,
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nsIStyleRule* aStyleRule);
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NS_IMETHOD StyleRuleRemoved(nsIDocument *aDocument,
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nsIStyleSheet* aStyleSheet,
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nsIStyleRule* aStyleRule);
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NS_IMETHOD DocumentWillBeDestroyed(nsIDocument *aDocument);
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protected:
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nsGfxTextControlFrame *mFrame; // not ref counted
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};
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/******************************************************************************
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* nsIEnderEventListener
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******************************************************************************/
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class nsIEnderEventListener : public nsISupports
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{
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public:
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static const nsIID& GetIID() { static nsIID iid = NS_IENDER_EVENT_LISTENER_IID; return iid; }
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/** SetFrame sets the frame we send event messages to, when necessary
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* @param aFrame -- the frame, can be null, not ref counted (guaranteed to outlive us!)
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*/
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NS_IMETHOD SetFrame(nsGfxTextControlFrame *aFrame)=0;
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/** set the pres context associated with this listener instance */
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NS_IMETHOD SetPresContext(nsIPresContext *aCx)=0;
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/** set the view associated with this listener instance */
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NS_IMETHOD SetView(nsIView *aView)=0;
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};
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/******************************************************************************
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* nsEnderEventListener
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******************************************************************************/
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class nsEnderEventListener; // forward declaration for factory
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/* factory for ender key listener */
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nsresult NS_NewEnderEventListener(nsIEnderEventListener ** aInstancePtrResult);
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class nsEnderEventListener : public nsIEnderEventListener,
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public nsIDOMKeyListener,
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public nsIDOMMouseListener,
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public nsIDOMFocusListener,
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public nsIDOMSelectionListener
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{
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public:
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/** the default destructor */
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virtual ~nsEnderEventListener();
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/** interfaces for addref and release and queryinterface*/
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NS_DECL_ISUPPORTS
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/** nsIEnderEventListener interfaces
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* @see nsIEnderEventListener
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*/
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NS_IMETHOD SetFrame(nsGfxTextControlFrame *aFrame);
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NS_IMETHOD SetPresContext(nsIPresContext *aCx) {mContext = do_QueryInterface(aCx); return NS_OK;}
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NS_IMETHOD SetView(nsIView *aView) {mView = aView; return NS_OK;} // views are not ref counted
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/** nsIDOMKeyListener interfaces
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* @see nsIDOMKeyListener
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*/
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virtual nsresult HandleEvent(nsIDOMEvent* aEvent);
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virtual nsresult KeyDown(nsIDOMEvent* aKeyEvent);
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virtual nsresult KeyUp(nsIDOMEvent* aKeyEvent);
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virtual nsresult KeyPress(nsIDOMEvent* aKeyEvent);
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/* END interfaces from nsIDOMKeyListener*/
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/** nsIDOMMouseListener interfaces
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* @see nsIDOMMouseListener
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*/
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virtual nsresult MouseDown(nsIDOMEvent* aMouseEvent);
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virtual nsresult MouseUp(nsIDOMEvent* aMouseEvent);
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virtual nsresult MouseClick(nsIDOMEvent* aMouseEvent);
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virtual nsresult MouseDblClick(nsIDOMEvent* aMouseEvent);
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virtual nsresult MouseOver(nsIDOMEvent* aMouseEvent);
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virtual nsresult MouseOut(nsIDOMEvent* aMouseEvent);
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/* END interfaces from nsIDOMMouseListener*/
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/** nsIDOMFocusListener interfaces
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* used to propogate focus, blur, and change notifications
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* @see nsIDOMFocusListener
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*/
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virtual nsresult Focus(nsIDOMEvent* aEvent);
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virtual nsresult Blur (nsIDOMEvent* aEvent);
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/* END interfaces from nsIDOMFocusListener*/
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/** nsIDOMSelectionListener interfaces
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* @see nsIDOMSelectionListener
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*/
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NS_IMETHOD NotifySelectionChanged();
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/*END interfaces from nsIDOMSelectionListener*/
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friend nsresult NS_NewEnderEventListener(nsIEnderEventListener ** aInstancePtrResult);
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protected:
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/** the default constructor. Protected, use the factory to create an instance.
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* @see NS_NewEnderEventListener
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*/
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nsEnderEventListener();
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/** mouse event dispatch helper */
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nsresult DispatchMouseEvent(nsIDOMUIEvent *aEvent, PRInt32 aEventType);
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protected:
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nsCWeakReference<nsGfxTextControlFrame> mFrame;
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nsIView *mView; // not ref counted
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nsCOMPtr<nsIPresContext> mContext; // ref counted
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nsCOMPtr<nsIContent> mContent; // ref counted
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nsString mTextValue; // the value of the text field at focus
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// note nsGfxTextControlFrame is held as a weak ptr
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// because the frame can be deleted in the middle
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// of event processing. See the KeyUp handler
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// for places where this is a problem, and see
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// nsCWeakReference.h for notes on use.
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};
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/******************************************************************************
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* nsGfxTextControlFrame
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******************************************************************************/
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class nsGfxTextControlFrame : public nsTextControlFrame
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{
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private:
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typedef nsFormControlFrame Inherited;
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public:
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nsGfxTextControlFrame();
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virtual ~nsGfxTextControlFrame();
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/** nsIFrame override of Init.
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* all we do here is cache the pres context for later use
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*/
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NS_IMETHOD Init(nsIPresContext& aPresContext,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsIStyleContext* aContext,
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nsIFrame* aPrevInFlow);
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NS_IMETHOD List(nsIPresContext* aPresContext, FILE* out, PRInt32 aIndent) const;
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NS_IMETHOD InitTextControl();
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// nsIFormControlFrame
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NS_IMETHOD SetProperty(nsIPresContext* aPresContext, nsIAtom* aName, const nsString& aValue);
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NS_IMETHOD GetProperty(nsIAtom* aName, nsString& aValue);
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virtual void SetFocus(PRBool aOn = PR_TRUE, PRBool aRepaint = PR_FALSE);
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virtual nsWidgetInitData* GetWidgetInitData(nsIPresContext& aPresContext);
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NS_IMETHOD AttributeChanged(nsIPresContext* aPresContext,
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nsIContent* aChild,
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PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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PRInt32 aHint);
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virtual void PostCreateWidget(nsIPresContext* aPresContext,
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nscoord& aWidth,
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nscoord& aHeight);
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NS_IMETHOD GetText(nsString* aValue, PRBool aInitialValue);
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/**
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* Respond to a gui event
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* @see nsNativeFormControlFrame::HandleEvent
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*/
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NS_IMETHOD HandleEvent(nsIPresContext& aPresContext,
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nsGUIEvent* aEvent,
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nsEventStatus& aEventStatus);
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virtual void EnterPressed(nsIPresContext& aPresContext) ;
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virtual PRBool GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
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nsString* aValues, nsString* aNames);
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virtual void Reset();
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// override to interact with webshell
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NS_IMETHOD Reflow(nsIPresContext& aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus);
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NS_IMETHOD ReflowNavQuirks(nsIPresContext& aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus,
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nsMargin& aBorderPadding);
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NS_IMETHOD ReflowStandard(nsIPresContext& aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus,
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nsMargin& aBorderPadding);
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NS_IMETHOD Paint(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsFramePaintLayer aWhichLayer);
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virtual void PaintTextControlBackground(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsFramePaintLayer aWhichLayer);
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virtual void PaintTextControl(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect, nsString& aText,
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nsIStyleContext* aStyleContext,
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nsRect& aRect);
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// Utility methods to get and set current widget state
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void GetTextControlFrameState(nsString& aValue);
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void SetTextControlFrameState(const nsString& aValue);
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// this method is called to notify the frame that it has gained focus
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void NotifyFocus();
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NS_IMETHOD InstallEditor();
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virtual nsresult RequiresWidget(PRBool &aRequiresWidget);
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NS_IMETHOD InternalContentChanged();
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NS_IMETHOD DoesAttributeExist(nsIAtom *aAtt);
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void RemoveNewlines(nsString &aString);
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nsCWeakReferent *WeakReferent()
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{ return &mWeakReferent; }
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protected:
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PRInt32 CalculateSizeNavQuirks (nsIPresContext* aPresContext,
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nsIRenderingContext* aRendContext,
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nsIFormControlFrame* aFrame,
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const nsSize& aCSSSize,
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nsInputDimensionSpec& aSpec,
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nsSize& aDesiredSize,
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nsSize& aMinSize,
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PRBool& aWidthExplicit,
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PRBool& aHeightExplicit,
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nscoord& aRowHeight,
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nsMargin& aBorderPadding);
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PRInt32 CalculateSizeStandard (nsIPresContext* aPresContext,
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nsIRenderingContext* aRendContext,
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nsIFormControlFrame* aFrame,
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const nsSize& aCSSSize,
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nsInputDimensionSpec& aSpec,
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nsSize& aDesiredSize,
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nsSize& aMinSize,
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PRBool& aWidthExplicit,
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PRBool& aHeightExplicit,
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nscoord& aRowHeight,
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nsMargin& aBorderPadding);
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nsresult GetColRowSizeAttr(nsIFormControlFrame* aFrame,
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nsIAtom * aColSizeAttr,
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nsHTMLValue & aColSize,
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nsresult & aColStatus,
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nsIAtom * aRowSizeAttr,
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nsHTMLValue & aRowSize,
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nsresult & aRowStatus);
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NS_IMETHOD CreateWebShell(nsIPresContext& aPresContext,
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const nsSize& aSize);
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NS_IMETHOD InitializeTextControl(nsIPresShell *aPresShell, nsIDOMDocument *aDoc);
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NS_IMETHOD InstallEventListeners();
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NS_IMETHOD GetPresShellFor(nsIWebShell* aWebShell, nsIPresShell** aPresShell);
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NS_IMETHOD GetFirstNodeOfType(const nsString& aTag, nsIDOMDocument *aDOMDoc, nsIDOMNode **aBodyNode);
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NS_IMETHOD GetFirstFrameForType(const nsString& aTag, nsIPresShell *aPresShell, nsIDOMDocument *aDOMDoc, nsIFrame **aResult);
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NS_IMETHOD SelectAllTextContent(nsIDOMNode *aBodyNode, nsIDOMSelection *aSelection);
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PRBool IsSingleLineTextControl() const;
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PRBool IsPlainTextControl() const;
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PRBool IsPasswordTextControl() const;
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PRBool IsInitialized() const;
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PRInt32 GetWidthInCharacters() const;
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protected:
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nsIWebShell* mWebShell;
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PRBool mCreatingViewer;
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EnderTempObserver* mTempObserver;
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nsEnderDocumentObserver *mDocObserver;
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PRBool mNotifyOnInput; // init false,
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// when true this frame propogates notifications whenever the edited content is changed
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PRBool mIsProcessing;
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PRBool mNeedsStyleInit;
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nsIPresContext *mFramePresContext; // not ref counted
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nsString* mCachedState; // this is used for caching changed between frame creation
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// and full initialization
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nsCWeakReferent mWeakReferent; // so this obj can be used as a weak ptr
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// listeners
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nsCOMPtr<nsIEnderEventListener> mEventListener; // ref counted
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// editing state
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nsCOMPtr<nsIEditor> mEditor; // ref counted
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nsCOMPtr<nsIDOMDocument> mDoc; // ref counted
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};
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#endif
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