/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: NPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Netscape 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/NPL/ * * 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 Communicator client 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 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 NPL, 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 NPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #ifndef nsListControlFrame_h___ #define nsListControlFrame_h___ #ifdef DEBUG_evaughan //#define DEBUG_rods #endif #ifdef DEBUG_rods //#define DO_REFLOW_DEBUG //#define DO_REFLOW_COUNTER //#define DO_UNCONSTRAINED_CHECK //#define DO_PIXELS #endif #include "nsScrollFrame.h" #include "nsIFormControlFrame.h" #include "nsIListControlFrame.h" #include "nsISelectControlFrame.h" #include "nsIDOMMouseListener.h" #include "nsIDOMMouseMotionListener.h" #include "nsIDOMKeyListener.h" #include "nsIPresState.h" #include "nsCWeakReference.h" #include "nsIContent.h" #include "nsIStatefulFrame.h" class nsIDOMHTMLSelectElement; class nsIDOMHTMLCollection; class nsIDOMHTMLOptionElement; class nsIComboboxControlFrame; class nsIViewManager; class nsIPresContext; class nsVoidArray; class nsIScrollableView; class nsIStatefulFrame; class nsListControlFrame; class nsSelectUpdateTimer; class nsVoidArray; #define NS_ILIST_EVENT_LISTENER_IID \ {/* 45BC6821-6EFB-11d4-B1EE-000064657374*/ \ 0x45bc6821, 0x6efb, 0x11d4, \ {0xb1, 0xee, 0x0, 0x0, 0x64, 0x65, 0x73, 0x74} } /****************************************************************************** * nsIListEventListener * Standard interface for event listeners that are attached to nsListControls ******************************************************************************/ class nsIListEventListener : public nsISupports { public: static const nsIID& GetIID() { static nsIID iid = NS_ILIST_EVENT_LISTENER_IID; return iid; } /** SetFrame sets the frame we send event messages to, when necessary * @param aFrame -- the frame, can be null, not ref counted (guaranteed to outlive us!) */ NS_IMETHOD SetFrame(nsListControlFrame *aFrame)=0; }; /****************************************************************************** * nsListEventListener * This class is responsible for propagating events to the nsListControlFrame * becuase it isn't ref-counted ******************************************************************************/ class nsListEventListener; // forward declaration for factory /* factory for ender key listener */ nsresult NS_NewListEventListener(nsIListEventListener ** aInstancePtrResult); class nsListEventListener : public nsIListEventListener, public nsIDOMKeyListener, public nsIDOMMouseListener, public nsIDOMMouseMotionListener { public: /** the default destructor */ virtual ~nsListEventListener(); /** interfaces for addref and release and queryinterface*/ NS_DECL_ISUPPORTS /** nsIDOMKeyListener interfaces * @see nsIDOMKeyListener */ NS_IMETHOD SetFrame(nsListControlFrame *aFrame); /** nsIDOMKeyListener interfaces * @see nsIDOMKeyListener */ NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent); NS_IMETHOD KeyDown(nsIDOMEvent* aKeyEvent); NS_IMETHOD KeyUp(nsIDOMEvent* aKeyEvent); NS_IMETHOD KeyPress(nsIDOMEvent* aKeyEvent); /* END interfaces from nsIDOMKeyListener*/ /** nsIDOMMouseListener interfaces * @see nsIDOMMouseListener */ NS_IMETHOD MouseDown(nsIDOMEvent* aMouseEvent); NS_IMETHOD MouseUp(nsIDOMEvent* aMouseEvent); NS_IMETHOD MouseClick(nsIDOMEvent* aMouseEvent); NS_IMETHOD MouseDblClick(nsIDOMEvent* aMouseEvent); NS_IMETHOD MouseOver(nsIDOMEvent* aMouseEvent); NS_IMETHOD MouseOut(nsIDOMEvent* aMouseEvent); /* END interfaces from nsIDOMMouseListener*/ //nsIDOMEventMotionListener /** nsIDOMEventMotionListener interfaces * @see nsIDOMEventMotionListener */ NS_IMETHOD MouseMove(nsIDOMEvent* aMouseEvent); NS_IMETHOD DragMove(nsIDOMEvent* aMouseEvent); /* END interfaces from nsIDOMMouseListener*/ friend nsresult NS_NewListEventListener(nsIListEventListener ** aInstancePtrResult); protected: /** the default constructor. Protected, use the factory to create an instance. * @see NS_NewEnderEventListener */ nsListEventListener(); protected: nsCWeakReference mFrame; nsCOMPtr mContent; // ref counted }; /** * Frame-based listbox. */ class nsListControlFrame : public nsScrollFrame, public nsIFormControlFrame, public nsIListControlFrame, public nsIDOMMouseListener, public nsIDOMMouseMotionListener, public nsIDOMKeyListener, public nsISelectControlFrame { public: friend nsresult NS_NewListControlFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame); friend class nsSelectUpdateTimer; // nsISupports NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr); // nsIFrame NS_IMETHOD HandleEvent(nsIPresContext* aPresContext, nsGUIEvent* aEvent, nsEventStatus* aEventStatus); NS_IMETHOD SetInitialChildList(nsIPresContext* aPresContext, nsIAtom* aListName, nsIFrame* aChildList); NS_IMETHOD Reflow(nsIPresContext* aCX, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsReflowStatus& aStatus); NS_IMETHOD Init(nsIPresContext* aPresContext, nsIContent* aContent, nsIFrame* aParent, nsIStyleContext* aContext, nsIFrame* aPrevInFlow); NS_IMETHOD DidReflow(nsIPresContext* aPresContext, const nsHTMLReflowState* aReflowState, nsDidReflowStatus aStatus); NS_IMETHOD MoveTo(nsIPresContext* aPresContext, nscoord aX, nscoord aY); NS_IMETHOD Destroy(nsIPresContext *aPresContext); NS_IMETHOD Paint(nsIPresContext* aPresContext, nsIRenderingContext& aRenderingContext, const nsRect& aDirtyRect, nsFramePaintLayer aWhichLayer, PRUint32 aFlags = 0); /** * Get the "type" of the frame * * @see nsLayoutAtoms::scrollFrame */ NS_IMETHOD GetFrameType(nsIAtom** aType) const; #ifdef DEBUG // nsIFrameDebug NS_IMETHOD GetFrameName(nsAString& aResult) const; #endif // nsIFormControlFrame NS_IMETHOD GetType(PRInt32* aType) const; NS_IMETHOD GetName(nsAString* aName); NS_IMETHOD SetProperty(nsIPresContext* aPresContext, nsIAtom* aName, const nsAReadableString& aValue); NS_IMETHOD GetProperty(nsIAtom* aName, nsAWritableString& aValue); NS_IMETHOD GetMultiple(PRBool* aResult, nsIDOMHTMLSelectElement* aSelect = nsnull); NS_IMETHOD GetFont(nsIPresContext* aPresContext, const nsFont*& aFont); NS_IMETHOD GetFormContent(nsIContent*& aContent) const; NS_IMETHOD OnContentReset(); virtual void SetFocus(PRBool aOn = PR_TRUE, PRBool aRepaint = PR_FALSE); virtual void ScrollIntoView(nsIPresContext* aPresContext); virtual void MouseClicked(nsIPresContext* aPresContext); virtual void SetFormFrame(nsFormFrame* aFrame); virtual nscoord GetVerticalInsidePadding(nsIPresContext* aPresContext, float aPixToTwip, nscoord aInnerHeight) const; virtual nscoord GetHorizontalInsidePadding(nsIPresContext* aPresContext, float aPixToTwip, nscoord aInnerWidth, nscoord aCharWidth) const; virtual nsresult RequiresWidget(PRBool &aRequiresWidget); // for accessibility purposes #ifdef ACCESSIBILITY NS_IMETHOD GetAccessible(nsIAccessible** aAccessible); #endif // nsHTMLContainerFrame virtual PRIntn GetSkipSides() const; // nsIListControlFrame NS_IMETHOD SetComboboxFrame(nsIFrame* aComboboxFrame); NS_IMETHOD GetSelectedIndex(PRInt32* aIndex); NS_IMETHOD GetOptionText(PRInt32 aIndex, nsAString & aStr); NS_IMETHOD CaptureMouseEvents(nsIPresContext* aPresContext, PRBool aGrabMouseEvents); NS_IMETHOD GetMaximumSize(nsSize &aSize); NS_IMETHOD SetSuggestedSize(nscoord aWidth, nscoord aHeight); NS_IMETHOD GetNumberOfOptions(PRInt32* aNumOptions); NS_IMETHOD SyncViewWithFrame(nsIPresContext* aPresContext); NS_IMETHOD AboutToDropDown(); NS_IMETHOD AboutToRollup(); NS_IMETHOD UpdateSelection(); NS_IMETHOD ComboboxUpdateSelection(PRBool aForceUpdate, PRBool aSendEvent); NS_IMETHOD SetOverrideReflowOptimization(PRBool aValue) { mOverrideReflowOpt = aValue; return NS_OK; } NS_IMETHOD GetOptionsContainer(nsIPresContext* aPresContext, nsIFrame** aFrame); // nsISelectControlFrame NS_IMETHOD AddOption(nsIPresContext* aPresContext, PRInt32 index); NS_IMETHOD RemoveOption(nsIPresContext* aPresContext, PRInt32 index); NS_IMETHOD GetOptionSelected(PRInt32 aIndex, PRBool* aValue); NS_IMETHOD DoneAddingContent(PRBool aIsDone); NS_IMETHOD OnOptionSelected(nsIPresContext* aPresContext, PRInt32 aIndex, PRBool aSelected); NS_IMETHOD GetDummyFrame(nsIFrame** aFrame); NS_IMETHOD SetDummyFrame(nsIFrame* aFrame); //nsIDOMEventListener NS_IMETHOD MouseDown(nsIDOMEvent* aMouseEvent); NS_IMETHOD MouseUp(nsIDOMEvent* aMouseEvent); NS_IMETHOD MouseClick(nsIDOMEvent* aMouseEvent) { return NS_OK; } NS_IMETHOD MouseDblClick(nsIDOMEvent* aMouseEvent) { return NS_OK; } NS_IMETHOD MouseOver(nsIDOMEvent* aMouseEvent) { return NS_OK; } NS_IMETHOD MouseOut(nsIDOMEvent* aMouseEvent) { return NS_OK; } NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent) { return NS_OK; } //nsIDOMEventMotionListener NS_IMETHOD MouseMove(nsIDOMEvent* aMouseEvent); NS_IMETHOD DragMove(nsIDOMEvent* aMouseEvent); //nsIDOMKeyListener NS_IMETHOD KeyDown(nsIDOMEvent* aKeyEvent); NS_IMETHOD KeyUp(nsIDOMEvent* aKeyEvent) { return NS_OK; } NS_IMETHOD KeyPress(nsIDOMEvent* aKeyEvent); //nsIStatefulFrame NS_IMETHOD SaveState(nsIPresContext* aPresContext, nsIPresState** aState); NS_IMETHOD RestoreState(nsIPresContext* aPresContext, nsIPresState* aState); // Static Methods static nsIDOMHTMLSelectElement* GetSelect(nsIContent * aContent); static nsIDOMHTMLCollection* GetOptions(nsIContent * aContent, nsIDOMHTMLSelectElement* aSelect = nsnull); static nsIDOMHTMLOptionElement* GetOption(nsIDOMHTMLCollection& aOptions, PRInt32 aIndex); static nsIContent* GetOptionAsContent(nsIDOMHTMLCollection* aCollection,PRInt32 aIndex); // Weak Reference nsCWeakReferent *WeakReferent() { return &mWeakReferent; } // Helper void SetPassId(PRInt16 aId) { mPassId = aId; } protected: nsresult IsOptionDisabled(PRInt32 anIndex, PRBool &aIsDisabled); nsresult ScrollToFrame(nsIContent * aOptElement); nsresult ScrollToIndex(PRInt32 anIndex); PRBool IsClickingInCombobox(nsIDOMEvent* aMouseEvent); void AdjustIndexForDisabledOpt(PRInt32 aStartIndex, PRInt32 &anNewIndex, PRInt32 aNumOptions, PRInt32 aDoAdjustInc, PRInt32 aDoAdjustIncNext); virtual void ResetList(nsIPresContext* aPresContext, nsVoidArray * aInxList = nsnull); nsListControlFrame(); virtual ~nsListControlFrame(); // nsScrollFrame overrides // Override the widget created for the list box so a Borderless top level // widget is created for drop-down lists. virtual nsresult CreateScrollingViewWidget(nsIView* aView, const nsStyleDisplay* aDisplay); virtual nsresult GetScrollingParentView(nsIPresContext* aPresContext, nsIFrame* aParent, nsIView** aParentView); // Utility methods nsresult GetSizeAttribute(PRInt32 *aSize); nsIContent* GetOptionFromContent(nsIContent *aContent); nsresult GetIndexFromDOMEvent(nsIDOMEvent* aMouseEvent, PRInt32& aCurIndex); nsIContent* GetOptionContent(PRInt32 aIndex); PRBool IsContentSelected(nsIContent* aContent); PRBool IsContentSelectedByIndex(PRInt32 aIndex); void GetViewOffset(nsIViewManager* aManager, nsIView* aView, nsPoint& aPoint); PRBool IsInDropDownMode(); PRBool IsOptionElement(nsIContent* aContent); void SingleSelection(PRInt32 aSelectedIndex, PRBool aDoToggle); void ExtendedSelection(PRInt32 aStartIndex, PRInt32 aEndIndex, PRBool aClearAll); void PerformSelection(PRInt32 aSelectedIndex, PRBool aIsShift, PRBool aIsControl); void ResetSelectedItem(); PRBool CheckIfAllFramesHere(); PRInt32 GetIndexFromContent(nsIContent *aContent); void HandleListSelection(nsIDOMEvent * aDOMEvent, PRInt32 selectedIndex); PRBool IsLeftButton(nsIDOMEvent* aMouseEvent); nsresult SetOptionsSelectedFromFrame(PRInt32 aStartIndex, PRInt32 aEndIndex, PRBool aValue, PRBool aClearAll); nsresult ToggleOptionSelectedFromFrame(PRInt32 aIndex); void GetScrollableView(nsIScrollableView*& aScrollableView); // Timer Methods nsresult StartUpdateTimer(nsIPresContext * aPresContext); void StopUpdateTimer(); void ItemsHaveBeenRemoved(nsIPresContext * aPresContext); // onChange detection nsresult SelectionChanged(); // Data Members nsFormFrame* mFormFrame; PRInt32 mStartSelectionIndex; PRInt32 mEndSelectionIndex; PRBool mChangesNotNotified; PRInt32 mSelectedIndexWhenPoppedDown; nsIComboboxControlFrame *mComboboxFrame; PRPackedBool mButtonDown; nscoord mMaxWidth; nscoord mMaxHeight; PRPackedBool mIsCapturingMouseEvents; PRInt32 mNumDisplayRows; PRBool mIsAllContentHere; PRPackedBool mIsAllFramesHere; PRPackedBool mHasBeenInitialized; PRPackedBool mDoneWithInitialReflow; PRPackedBool mOverrideReflowOpt; nsIPresContext* mPresContext; // XXX: Remove the need to cache the pres context. nsCOMPtr mEventListener; // ref counted nsCWeakReferent mWeakReferent; // so this obj can be used as a weak ptr // XXX temprary only until full system mouse capture works PRPackedBool mIsScrollbarVisible; PRInt16 mPassId; nsSize mCachedDesiredMaxSize; // Update timer nsSelectUpdateTimer * mUpdateTimer; nsIFrame* mDummyFrame; //Resize Reflow OpitmizationSize; nsSize mCacheSize; nsSize mCachedMaxElementSize; nsSize mCachedUnconstrainedSize; nsSize mCachedAvailableSize; #ifdef DO_REFLOW_COUNTER PRInt32 mReflowId; #endif private: NS_IMETHOD_(nsrefcnt) AddRef() { return NS_OK; } NS_IMETHOD_(nsrefcnt) Release() { return NS_OK; } }; #endif /* nsListControlFrame_h___ */