зеркало из https://github.com/mozilla/gecko-dev.git
309 строки
11 KiB
C++
309 строки
11 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 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):
|
|
* Mats Palmgren <mats.palmgren@bredband.net>
|
|
*
|
|
* 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 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 "nsGfxScrollFrame.h"
|
|
#include "nsIFormControlFrame.h"
|
|
#include "nsIListControlFrame.h"
|
|
#include "nsISelectControlFrame.h"
|
|
#include "nsIDOMEventListener.h"
|
|
#include "nsIContent.h"
|
|
#include "nsAutoPtr.h"
|
|
|
|
class nsIDOMHTMLSelectElement;
|
|
class nsIDOMHTMLOptionsCollection;
|
|
class nsIDOMHTMLOptionElement;
|
|
class nsIComboboxControlFrame;
|
|
class nsIViewManager;
|
|
class nsPresContext;
|
|
class nsVoidArray;
|
|
class nsIScrollableView;
|
|
|
|
class nsVoidArray;
|
|
class nsListEventListener;
|
|
|
|
/**
|
|
* Frame-based listbox.
|
|
*/
|
|
|
|
class nsListControlFrame : public nsHTMLScrollFrame,
|
|
public nsIFormControlFrame,
|
|
public nsIListControlFrame,
|
|
public nsISelectControlFrame
|
|
{
|
|
public:
|
|
friend nsIFrame* NS_NewListControlFrame(nsIPresShell* aPresShell);
|
|
|
|
// nsISupports
|
|
NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
|
|
|
|
// nsIFrame
|
|
NS_IMETHOD HandleEvent(nsPresContext* aPresContext,
|
|
nsGUIEvent* aEvent,
|
|
nsEventStatus* aEventStatus);
|
|
|
|
NS_IMETHOD SetInitialChildList(nsPresContext* aPresContext,
|
|
nsIAtom* aListName,
|
|
nsIFrame* aChildList);
|
|
|
|
NS_IMETHOD Reflow(nsPresContext* aCX,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus);
|
|
|
|
NS_IMETHOD Init(nsPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParent,
|
|
nsStyleContext* aContext,
|
|
nsIFrame* aPrevInFlow);
|
|
|
|
NS_IMETHOD DidReflow(nsPresContext* aPresContext,
|
|
const nsHTMLReflowState* aReflowState,
|
|
nsDidReflowStatus aStatus);
|
|
NS_IMETHOD Destroy(nsPresContext *aPresContext);
|
|
|
|
NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aDirtyRect,
|
|
const nsDisplayListSet& aLists);
|
|
|
|
virtual nsIFrame* GetContentInsertionFrame();
|
|
|
|
/**
|
|
* Get the "type" of the frame
|
|
*
|
|
* @see nsLayoutAtoms::scrollFrame
|
|
*/
|
|
virtual nsIAtom* GetType() const;
|
|
|
|
#ifdef DEBUG
|
|
// nsIFrameDebug
|
|
NS_IMETHOD GetFrameName(nsAString& aResult) const;
|
|
#endif
|
|
|
|
// nsIFormControlFrame
|
|
virtual nsresult SetFormProperty(nsIAtom* aName, const nsAString& aValue);
|
|
virtual nsresult GetFormProperty(nsIAtom* aName, nsAString& aValue) const;
|
|
virtual void SetFocus(PRBool aOn = PR_TRUE, PRBool aRepaint = PR_FALSE);
|
|
|
|
virtual nsGfxScrollFrameInner::ScrollbarStyles GetScrollbarStyles() const;
|
|
|
|
// 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(nsPresContext* aPresContext, PRBool aGrabMouseEvents);
|
|
NS_IMETHOD GetMaximumSize(nsSize &aSize);
|
|
NS_IMETHOD GetNumberOfOptions(PRInt32* aNumOptions);
|
|
NS_IMETHOD SyncViewWithFrame();
|
|
NS_IMETHOD AboutToDropDown();
|
|
NS_IMETHOD AboutToRollup();
|
|
NS_IMETHOD UpdateSelection();
|
|
NS_IMETHOD SetOverrideReflowOptimization(PRBool aValue) { mOverrideReflowOpt = aValue; return NS_OK; }
|
|
NS_IMETHOD FireOnChange();
|
|
NS_IMETHOD ComboboxFinish(PRInt32 aIndex);
|
|
virtual void OnContentReset();
|
|
|
|
// nsISelectControlFrame
|
|
NS_IMETHOD AddOption(nsPresContext* aPresContext, PRInt32 index);
|
|
NS_IMETHOD RemoveOption(nsPresContext* aPresContext, PRInt32 index);
|
|
NS_IMETHOD GetOptionSelected(PRInt32 aIndex, PRBool* aValue);
|
|
NS_IMETHOD DoneAddingChildren(PRBool aIsDone);
|
|
NS_IMETHOD OnOptionSelected(nsPresContext* aPresContext,
|
|
PRInt32 aIndex,
|
|
PRBool aSelected);
|
|
NS_IMETHOD OnSetSelectedIndex(PRInt32 aOldIndex, PRInt32 aNewIndex);
|
|
|
|
// mouse event listeners
|
|
nsresult MouseDown(nsIDOMEvent* aMouseEvent);
|
|
nsresult MouseUp(nsIDOMEvent* aMouseEvent);
|
|
|
|
// mouse motion listeners
|
|
nsresult MouseMove(nsIDOMEvent* aMouseEvent);
|
|
nsresult DragMove(nsIDOMEvent* aMouseEvent);
|
|
|
|
// key listeners
|
|
nsresult KeyPress(nsIDOMEvent* aKeyEvent);
|
|
|
|
// Static Methods
|
|
static already_AddRefed<nsIDOMHTMLOptionsCollection>
|
|
GetOptions(nsIContent * aContent);
|
|
static already_AddRefed<nsIDOMHTMLOptionElement>
|
|
GetOption(nsIDOMHTMLOptionsCollection* aOptions, PRInt32 aIndex);
|
|
static already_AddRefed<nsIContent>
|
|
GetOptionAsContent(nsIDOMHTMLOptionsCollection* aCollection,PRInt32 aIndex);
|
|
|
|
static void ComboboxFocusSet();
|
|
|
|
// Helper
|
|
void SetPassId(PRInt16 aId) { mPassId = aId; }
|
|
|
|
PRBool IsFocused() { return this == mFocused; }
|
|
void PaintFocus(nsIRenderingContext& aRC, nsPoint aPt);
|
|
|
|
#ifdef ACCESSIBILITY
|
|
void FireMenuItemActiveEvent(); // Inform assistive tech what got focused
|
|
#endif
|
|
|
|
protected:
|
|
PRBool GetMultiple(nsIDOMHTMLSelectElement* aSelect = nsnull) const;
|
|
void DropDownToggleKey(nsIDOMEvent* aKeyEvent);
|
|
nsresult IsOptionDisabled(PRInt32 anIndex, PRBool &aIsDisabled);
|
|
nsresult ScrollToFrame(nsIContent * aOptElement);
|
|
nsresult ScrollToIndex(PRInt32 anIndex);
|
|
PRBool IgnoreMouseEventForSelection(nsIDOMEvent* aEvent);
|
|
void UpdateInListState(nsIDOMEvent* aEvent);
|
|
void AdjustIndexForDisabledOpt(PRInt32 aStartIndex, PRInt32 &anNewIndex,
|
|
PRInt32 aNumOptions, PRInt32 aDoAdjustInc, PRInt32 aDoAdjustIncNext);
|
|
virtual void ResetList(PRBool aAllowScrolling);
|
|
|
|
nsListControlFrame(nsIPresShell* aShell, nsIDocument* aDocument);
|
|
virtual ~nsListControlFrame();
|
|
|
|
// Utility methods
|
|
nsresult GetSizeAttribute(PRInt32 *aSize);
|
|
nsIContent* GetOptionFromContent(nsIContent *aContent);
|
|
nsresult GetIndexFromDOMEvent(nsIDOMEvent* aMouseEvent, PRInt32& aCurIndex);
|
|
already_AddRefed<nsIContent> GetOptionContent(PRInt32 aIndex) const;
|
|
PRBool IsContentSelected(nsIContent* aContent) const;
|
|
PRBool IsContentSelectedByIndex(PRInt32 aIndex) const;
|
|
PRBool IsOptionElement(nsIContent* aContent);
|
|
PRBool CheckIfAllFramesHere();
|
|
PRInt32 GetIndexFromContent(nsIContent *aContent);
|
|
PRBool IsLeftButton(nsIDOMEvent* aMouseEvent);
|
|
|
|
// aNumOptions is the number of options we have; if we have none,
|
|
// we'll just guess at a row height based on our own style.
|
|
nscoord CalcFallbackRowHeight(PRInt32 aNumOptions);
|
|
|
|
// Dropped down stuff
|
|
void SetComboboxItem(PRInt32 aIndex);
|
|
PRBool IsInDropDownMode() const;
|
|
|
|
// Selection
|
|
PRBool SetOptionsSelectedFromFrame(PRInt32 aStartIndex,
|
|
PRInt32 aEndIndex,
|
|
PRBool aValue,
|
|
PRBool aClearAll);
|
|
PRBool ToggleOptionSelectedFromFrame(PRInt32 aIndex);
|
|
PRBool SingleSelection(PRInt32 aClickedIndex, PRBool aDoToggle);
|
|
PRBool ExtendedSelection(PRInt32 aStartIndex, PRInt32 aEndIndex,
|
|
PRBool aClearAll);
|
|
PRBool PerformSelection(PRInt32 aClickedIndex, PRBool aIsShift,
|
|
PRBool aIsControl);
|
|
PRBool HandleListSelection(nsIDOMEvent * aDOMEvent, PRInt32 selectedIndex);
|
|
void InitSelectionRange(PRInt32 aClickedIndex);
|
|
|
|
nsIFrame* GetOptionsContainer() {
|
|
return GetScrolledFrame();
|
|
}
|
|
|
|
// Data Members
|
|
PRInt32 mStartSelectionIndex;
|
|
PRInt32 mEndSelectionIndex;
|
|
|
|
nsIComboboxControlFrame *mComboboxFrame;
|
|
nscoord mMaxWidth;
|
|
nscoord mMaxHeight;
|
|
PRInt32 mNumDisplayRows;
|
|
PRPackedBool mChangesSinceDragStart:1;
|
|
PRPackedBool mButtonDown:1;
|
|
// Has the user selected a visible item since we showed the
|
|
// dropdown?
|
|
PRPackedBool mItemSelectionStarted:1;
|
|
|
|
PRPackedBool mIsAllContentHere:1;
|
|
PRPackedBool mIsAllFramesHere:1;
|
|
PRPackedBool mHasBeenInitialized:1;
|
|
PRPackedBool mNeedToReset:1;
|
|
PRPackedBool mPostChildrenLoadedReset:1;
|
|
|
|
PRPackedBool mOverrideReflowOpt:1;
|
|
|
|
//bool value for multiple discontiguous selection
|
|
PRPackedBool mControlSelectMode:1;
|
|
|
|
PRInt16 mPassId;
|
|
nscoord mCachedDesiredMEW;
|
|
|
|
nsRefPtr<nsListEventListener> mEventListener;
|
|
|
|
//Resize Reflow OpitmizationSize;
|
|
nsSize mCacheSize;
|
|
nscoord mCachedAscent;
|
|
nscoord mCachedMaxElementWidth;
|
|
nsSize mCachedUnconstrainedSize;
|
|
nsSize mCachedAvailableSize;
|
|
|
|
static nsListControlFrame * mFocused;
|
|
|
|
#ifdef DO_REFLOW_COUNTER
|
|
PRInt32 mReflowId;
|
|
#endif
|
|
|
|
private:
|
|
NS_IMETHOD_(nsrefcnt) AddRef() { return NS_OK; }
|
|
NS_IMETHOD_(nsrefcnt) Release() { return NS_OK; }
|
|
|
|
// for incremental typing navigation
|
|
static nsAString& GetIncrementalString ();
|
|
static DOMTimeStamp gLastKeyTime;
|
|
};
|
|
|
|
#endif /* nsListControlFrame_h___ */
|
|
|