mirror of
https://github.com/mozilla/gecko-dev.git
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99666eed8c
the printing of headers and footers. Printing of selection is implemented by the frames figuring out if they are in the selection and painting if they or not they they don't paint. This also only allows the printing of the first page of selections, alothough it is well documented where this is implemeted so it can be removed. Bugs 63426, 31218, 61075 r=dcone,kmcclusk,erik,buster sr=waterson
422 lines
16 KiB
C++
422 lines
16 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
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#ifndef nsListControlFrame_h___
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#define nsListControlFrame_h___
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#ifdef DEBUG_evaughan
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//#define DEBUG_rods
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#endif
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#ifdef DEBUG_rods
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#define DO_REFLOW_DEBUG
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#define DO_REFLOW_COUNTER
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//#define DO_UNCONSTRAINED_CHECK
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//#define DO_PIXELS
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#endif
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#include "nsScrollFrame.h"
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#include "nsIFormControlFrame.h"
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#include "nsIListControlFrame.h"
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#include "nsISelectControlFrame.h"
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#include "nsIDOMMouseListener.h"
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#include "nsIDOMMouseMotionListener.h"
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#include "nsIDOMKeyListener.h"
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#include "nsIStatefulFrame.h"
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#include "nsIPresState.h"
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#include "nsCWeakReference.h"
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#include "nsIContent.h"
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class nsIDOMHTMLSelectElement;
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class nsIDOMHTMLCollection;
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class nsIDOMHTMLOptionElement;
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class nsIComboboxControlFrame;
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class nsIViewManager;
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class nsIPresContext;
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class nsVoidArray;
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class nsIScrollableView;
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class nsListControlFrame;
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#define NS_ILIST_EVENT_LISTENER_IID \
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{/* 45BC6821-6EFB-11d4-B1EE-000064657374*/ \
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0x45bc6821, 0x6efb, 0x11d4, \
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{0xb1, 0xee, 0x0, 0x0, 0x64, 0x65, 0x73, 0x74} }
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/******************************************************************************
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* nsIListEventListener
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* Standard interface for event listeners that are attached to nsListControls
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******************************************************************************/
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class nsIListEventListener : public nsISupports
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{
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public:
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static const nsIID& GetIID() { static nsIID iid = NS_ILIST_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(nsListControlFrame *aFrame)=0;
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};
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/******************************************************************************
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* nsListEventListener
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* This class is responsible for propogating events to the nsListControlFrame
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* becuase it isn't ref-counted
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******************************************************************************/
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class nsListEventListener; // forward declaration for factory
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/* factory for ender key listener */
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nsresult NS_NewListEventListener(nsIListEventListener ** aInstancePtrResult);
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class nsListEventListener : public nsIListEventListener,
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public nsIDOMKeyListener,
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public nsIDOMMouseListener,
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public nsIDOMMouseMotionListener
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{
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public:
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/** the default destructor */
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virtual ~nsListEventListener();
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/** interfaces for addref and release and queryinterface*/
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NS_DECL_ISUPPORTS
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/** nsIDOMKeyListener interfaces
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* @see nsIDOMKeyListener
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*/
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NS_IMETHOD SetFrame(nsListControlFrame *aFrame);
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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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//nsIDOMEventMotionListener
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/** nsIDOMEventMotionListener interfaces
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* @see nsIDOMEventMotionListener
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*/
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virtual nsresult MouseMove(nsIDOMEvent* aMouseEvent);
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virtual nsresult DragMove(nsIDOMEvent* aMouseEvent);
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/* END interfaces from nsIDOMMouseListener*/
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friend nsresult NS_NewListEventListener(nsIListEventListener ** 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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nsListEventListener();
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protected:
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nsCWeakReference<nsListControlFrame> mFrame;
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nsCOMPtr<nsIContent> mContent; // ref counted
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};
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/**
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* Frame-based listbox.
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*/
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#define FIX_FOR_BUG_50376
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class nsListControlFrame : public nsScrollFrame,
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public nsIFormControlFrame,
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public nsIListControlFrame,
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public nsIDOMMouseListener,
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public nsIDOMMouseMotionListener,
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public nsIDOMKeyListener,
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public nsISelectControlFrame
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{
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public:
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friend nsresult NS_NewListControlFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame);
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// nsISupports
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NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
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// nsIFrame
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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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NS_IMETHOD SetInitialChildList(nsIPresContext* aPresContext,
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nsIAtom* aListName,
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nsIFrame* aChildList);
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NS_IMETHOD Reflow(nsIPresContext* aCX,
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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 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 DidReflow(nsIPresContext* aPresContext, nsDidReflowStatus aStatus);
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NS_IMETHOD MoveTo(nsIPresContext* aPresContext, nscoord aX, nscoord aY);
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NS_IMETHOD Destroy(nsIPresContext *aPresContext);
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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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// nsIFormControlFrame
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NS_IMETHOD GetType(PRInt32* aType) const;
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NS_IMETHOD GetName(nsString* aName);
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NS_IMETHOD SetProperty(nsIPresContext* aPresContext, nsIAtom* aName, const nsAReadableString& aValue);
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NS_IMETHOD GetProperty(nsIAtom* aName, nsAWritableString& aValue);
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NS_IMETHOD GetMultiple(PRBool* aResult, nsIDOMHTMLSelectElement* aSelect = nsnull);
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NS_IMETHOD GetFont(nsIPresContext* aPresContext,
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const nsFont*& aFont);
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NS_IMETHOD GetFormContent(nsIContent*& aContent) const;
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virtual void SetFocus(PRBool aOn = PR_TRUE, PRBool aRepaint = PR_FALSE);
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virtual void ScrollIntoView(nsIPresContext* aPresContext);
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virtual void MouseClicked(nsIPresContext* aPresContext);
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virtual void Reset(nsIPresContext* aPresContext);
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virtual PRBool IsSuccessful(nsIFormControlFrame* aSubmitter);
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virtual PRInt32 GetMaxNumValues();
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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 SetFormFrame(nsFormFrame* aFrame);
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virtual nscoord GetVerticalInsidePadding(nsIPresContext* aPresContext,
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float aPixToTwip,
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nscoord aInnerHeight) const;
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virtual nscoord GetHorizontalInsidePadding(nsIPresContext* aPresContext,
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float aPixToTwip,
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nscoord aInnerWidth,
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nscoord aCharWidth) const;
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virtual nsresult RequiresWidget(PRBool &aRequiresWidget);
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// nsHTMLContainerFrame
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virtual PRIntn GetSkipSides() const;
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// nsIListControlFrame
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NS_IMETHOD SetComboboxFrame(nsIFrame* aComboboxFrame);
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NS_IMETHOD GetSelectedIndex(PRInt32* aIndex);
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NS_IMETHOD GetSelectedItem(nsString & aStr);
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NS_IMETHOD CaptureMouseEvents(nsIPresContext* aPresContext, PRBool aGrabMouseEvents);
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NS_IMETHOD GetMaximumSize(nsSize &aSize);
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NS_IMETHOD SetSuggestedSize(nscoord aWidth, nscoord aHeight);
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NS_IMETHOD GetNumberOfOptions(PRInt32* aNumOptions);
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NS_IMETHOD SyncViewWithFrame(nsIPresContext* aPresContext);
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NS_IMETHOD AboutToDropDown();
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NS_IMETHOD AboutToRollup();
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NS_IMETHOD UpdateSelection(PRBool aDoDispatchEvent, PRBool aForceUpdate, nsIContent* aContent);
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NS_IMETHOD SetPresState(nsIPresState * aState) { mPresState = aState; return NS_OK;}
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NS_IMETHOD SetOverrideReflowOptimization(PRBool aValue) { mOverrideReflowOpt = aValue; return NS_OK; }
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NS_IMETHOD GetOptionsContainer(nsIPresContext* aPresContext, nsIFrame** aFrame);
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NS_IMETHOD SaveStateInternal(nsIPresContext* aPresContext, nsIPresState** aState);
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NS_IMETHOD RestoreStateInternal(nsIPresContext* aPresContext, nsIPresState* aState);
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// nsISelectControlFrame
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NS_IMETHOD AddOption(nsIPresContext* aPresContext, PRInt32 index);
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NS_IMETHOD RemoveOption(nsIPresContext* aPresContext, PRInt32 index);
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NS_IMETHOD SetOptionSelected(PRInt32 aIndex, PRBool aValue);
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NS_IMETHOD GetOptionSelected(PRInt32 aIndex, PRBool* aValue);
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NS_IMETHOD DoneAddingContent(PRBool aIsDone);
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NS_IMETHOD OptionDisabled(nsIContent * aContent);
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//nsIStatefulFrame
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NS_IMETHOD GetStateType(nsIPresContext* aPresContext, nsIStatefulFrame::StateType* aStateType);
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NS_IMETHOD SaveState(nsIPresContext* aPresContext, nsIPresState** aState);
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NS_IMETHOD RestoreState(nsIPresContext* aPresContext, nsIPresState* aState);
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//nsIDOMEventListener
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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) { return NS_OK; }
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virtual nsresult MouseDblClick(nsIDOMEvent* aMouseEvent) { return NS_OK; }
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virtual nsresult MouseOver(nsIDOMEvent* aMouseEvent) { return NS_OK; }
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virtual nsresult MouseOut(nsIDOMEvent* aMouseEvent) { return NS_OK; }
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virtual nsresult HandleEvent(nsIDOMEvent* aEvent) { return NS_OK; }
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//nsIDOMEventMotionListener
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virtual nsresult MouseMove(nsIDOMEvent* aMouseEvent);
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virtual nsresult DragMove(nsIDOMEvent* aMouseEvent);
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//nsIDOMKeyListener
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virtual nsresult KeyDown(nsIDOMEvent* aKeyEvent);
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virtual nsresult KeyUp(nsIDOMEvent* aKeyEvent) { return NS_OK; }
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virtual nsresult KeyPress(nsIDOMEvent* aKeyEvent);
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// Static Methods
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static nsIDOMHTMLSelectElement* GetSelect(nsIContent * aContent);
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static nsIDOMHTMLCollection* GetOptions(nsIContent * aContent, nsIDOMHTMLSelectElement* aSelect = nsnull);
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static nsIDOMHTMLOptionElement* GetOption(nsIDOMHTMLCollection& aOptions, PRInt32 aIndex);
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static nsIContent* GetOptionAsContent(nsIDOMHTMLCollection* aCollection,PRInt32 aIndex);
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static PRBool GetOptionValue(nsIDOMHTMLCollection& aCollecton, PRInt32 aIndex, nsString& aValue);
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// Weak Reference
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nsCWeakReferent *WeakReferent()
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{ return &mWeakReferent; }
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protected:
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NS_IMETHOD GetSelectedIndexFromDOM(PRInt32* aIndex); // from DOM
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NS_IMETHOD IsTargetOptionDisabled(PRBool &aIsDisabled);
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NS_IMETHOD IsOptionDisabled(PRInt32 anIndex, PRBool &aIsDisabled);
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nsresult ScrollToFrame(nsIContent * aOptElement);
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PRBool IsClickingInCombobox(nsIDOMEvent* aMouseEvent);
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void AdjustIndexForDisabledOpt(PRInt32 &anNewIndex, PRInt32 &anOldIndex,
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PRBool &aDoSetNewIndex, PRBool &aWasDisabled,
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PRInt32 aNumOptions, PRInt32 aDoAdjustInc, PRInt32 aDoAdjustIncNext);
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#ifdef FIX_FOR_BUG_50376
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// PresState Helper Methods
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nsresult GetPresStateAndValueArray(nsISupportsArray ** aSuppArray);
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nsresult SetOptionIntoPresState(nsISupportsArray * aSuppArray,
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PRInt32 aIndex,
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PRInt32 anItemNum);
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nsresult SetSelectionInPresState(PRInt32 aIndex, PRBool aValue);
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nsresult RemoveOptionFromPresState(nsISupportsArray * aSuppArray,
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PRInt32 aIndex);
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#endif
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nsListControlFrame();
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virtual ~nsListControlFrame();
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// nsScrollFrame overrides
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// Override the widget created for the list box so a Borderless top level widget is created
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// for drop-down lists.
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virtual nsresult CreateScrollingViewWidget(nsIView* aView,const nsStylePosition* aPosition);
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virtual nsresult GetScrollingParentView(nsIPresContext* aPresContext,
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nsIFrame* aParent,
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nsIView** aParentView);
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PRInt32 GetNumberOfOptions();
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// Utility methods
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nsresult GetSizeAttribute(PRInt32 *aSize);
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PRInt32 GetNumberOfSelections();
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nsIContent* GetOptionFromContent(nsIContent *aContent);
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nsresult GetIndexFromDOMEvent(nsIDOMEvent* aMouseEvent, PRInt32& aOldIndex, PRInt32& aCurIndex);
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PRInt32 GetSelectedIndexFromContent(nsIContent *aContent);
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nsIContent* GetOptionContent(PRInt32 aIndex);
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PRBool IsContentSelected(nsIContent* aContent);
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PRBool IsContentSelectedByIndex(PRInt32 aIndex);
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void SetContentSelected(PRInt32 aIndex, PRBool aSelected);
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void GetViewOffset(nsIViewManager* aManager, nsIView* aView, nsPoint& aPoint);
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nsresult Deselect();
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nsIFrame *GetOptionFromChild(nsIFrame* aParentFrame);
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PRBool IsAncestor(nsIView* aAncestor, nsIView* aChild);
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nsIView* GetViewFor(nsIWidget* aWidget);
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PRBool IsInDropDownMode();
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PRBool IsOptionElement(nsIContent* aContent);
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PRBool IsOptionElementFrame(nsIFrame *aFrame);
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nsIFrame *GetSelectableFrame(nsIFrame *aFrame);
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void DisplaySelected(nsIContent* aContent);
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void DisplayDeselected(nsIContent* aContent);
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void ForceRedraw(nsIPresContext* aPresContext);
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PRBool IsOptionGroup(nsIFrame* aFrame);
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void SingleSelection();
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void MultipleSelection(PRBool aIsShift, PRBool aIsControl);
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void SelectIndex(PRInt32 aIndex);
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void ToggleSelected(PRInt32 aIndex);
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void ClearSelection();
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void ExtendedSelection(PRInt32 aStartIndex, PRInt32 aEndIndex, PRBool aDoInvert, PRBool aSetValue);
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void ResetSelectedItem();
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PRBool CheckIfAllFramesHere();
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PRBool HasSameContent(nsIFrame* aFrame1, nsIFrame* aFrame2);
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void HandleListSelection(nsIDOMEvent * aDOMEvent);
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PRInt32 GetSelectedIndexFromFrame(nsIFrame *aHitFrame);
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PRBool IsLeftButton(nsIDOMEvent* aMouseEvent);
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void GetScrollableView(nsIScrollableView*& aScrollableView);
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// onChange detection
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nsresult SelectionChanged(nsIContent* aContent);
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// Data Members
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nsFormFrame* mFormFrame;
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PRInt32 mSelectedIndex;
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PRInt32 mOldSelectedIndex;
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PRInt32 mSelectedIndexWhenPoppedDown;
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PRInt32 mStartExtendedIndex;
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PRInt32 mEndExtendedIndex;
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PRBool mIsInitializedFromContent;
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nsIComboboxControlFrame *mComboboxFrame;
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PRBool mButtonDown;
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nscoord mMaxWidth;
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nscoord mMaxHeight;
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PRBool mIsCapturingMouseEvents;
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PRInt32 mNumDisplayRows;
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nsVoidArray * mSelectionCache;
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PRInt32 mSelectionCacheLength;
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PRBool mIsAllContentHere;
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PRBool mIsAllFramesHere;
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PRBool mHasBeenInitialized;
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PRBool mOverrideReflowOpt;
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PRInt32 mDelayedIndexSetting;
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PRBool mDelayedValueSetting;
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nsIPresContext* mPresContext; // XXX: Remove the need to cache the pres context.
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nsCOMPtr<nsIPresState> mPresState; // Need cache state when list is null
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nsCOMPtr<nsIListEventListener> mEventListener; // ref counted
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nsCWeakReferent mWeakReferent; // so this obj can be used as a weak ptr
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// XXX temprary only until full system mouse capture works
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PRBool mIsScrollbarVisible;
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//Resize Reflow OpitmizationSize;
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nsSize mCacheSize;
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nsSize mCachedMaxElementSize;
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nsSize mCachedUnconstrainedSize;
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nsSize mCachedAvailableSize;
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#ifdef DO_REFLOW_COUNTER
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PRInt32 mReflowId;
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#endif
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private:
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NS_IMETHOD_(nsrefcnt) AddRef() { return NS_OK; }
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NS_IMETHOD_(nsrefcnt) Release() { return NS_OK; }
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};
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#endif /* nsListControlFrame_h___ */
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