зеркало из https://github.com/mozilla/gecko-dev.git
121 строка
4.4 KiB
C++
121 строка
4.4 KiB
C++
|
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* 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.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
|
|
|
|
#include "nsCoord.h"
|
|
#include "nsISelectionListener.h"
|
|
#include "nsIRenderingContext.h"
|
|
#include "nsITimer.h"
|
|
#include "nsICaret.h"
|
|
#include "nsWeakPtr.h"
|
|
#ifdef IBMBIDI
|
|
#include "nsIBidiKeyboard.h"
|
|
#endif
|
|
|
|
class nsIView;
|
|
|
|
class nsISelectionController;
|
|
|
|
// {E14B66F6-BFC5-11d2-B57E-00105AA83B2F}
|
|
#define NS_CARET_CID \
|
|
{ 0xe14b66f6, 0xbfc5, 0x11d2, { 0xb5, 0x7e, 0x0, 0x10, 0x5a, 0xa8, 0x3b, 0x2f } };
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
class nsCaret : public nsICaret,
|
|
public nsISelectionListener
|
|
{
|
|
public:
|
|
|
|
nsCaret();
|
|
virtual ~nsCaret();
|
|
|
|
NS_DECL_ISUPPORTS
|
|
|
|
public:
|
|
|
|
// nsICaret interface
|
|
NS_IMETHOD Init(nsIPresShell *inPresShell);
|
|
|
|
NS_IMETHOD SetCaretDOMSelection(nsISelection *inDOMSel);
|
|
NS_IMETHOD GetCaretVisible(PRBool *outMakeVisible);
|
|
NS_IMETHOD SetCaretVisible(PRBool intMakeVisible);
|
|
NS_IMETHOD SetCaretReadOnly(PRBool inMakeReadonly);
|
|
NS_IMETHOD GetCaretCoordinates(EViewCoordinates aRelativeToType, nsISelection *inDOMSel, nsRect* outCoordinates, PRBool* outIsCollapsed);
|
|
NS_IMETHOD ClearFrameRefs(nsIFrame* aFrame);
|
|
NS_IMETHOD EraseCaret();
|
|
|
|
NS_IMETHOD SetCaretWidth(nscoord aPixels);
|
|
NS_IMETHOD SetVisibilityDuringSelection(PRBool aVisibility);
|
|
|
|
//nsISelectionListener interface
|
|
NS_IMETHOD NotifySelectionChanged(nsIDOMDocument *aDoc, nsISelection *aSel, short aReason);
|
|
|
|
static void CaretBlinkCallback(nsITimer *aTimer, void *aClosure);
|
|
|
|
protected:
|
|
|
|
void KillTimer();
|
|
nsresult PrimeTimer();
|
|
|
|
nsresult StartBlinking();
|
|
nsresult StopBlinking();
|
|
|
|
void GetViewForRendering(nsIFrame *caretFrame, EViewCoordinates coordType, nsPoint &viewOffset, nsRect& outClipRect, nsIView* &outView);
|
|
PRBool SetupDrawingFrameAndOffset();
|
|
PRBool MustDrawCaret();
|
|
void DrawCaret();
|
|
void ToggleDrawnStatus() { mDrawn = !mDrawn; }
|
|
|
|
protected:
|
|
|
|
nsWeakPtr mPresShell;
|
|
nsWeakPtr mDomSelectionWeak;
|
|
|
|
nsCOMPtr<nsITimer> mBlinkTimer;
|
|
nsCOMPtr<nsIRenderingContext> mRendContext;
|
|
|
|
PRUint32 mBlinkRate; // time for one cyle (off then on), in milliseconds
|
|
|
|
nscoord mCaretTwipsWidth; // caret width in twips
|
|
nscoord mCaretPixelsWidth; // caret width in pixels
|
|
|
|
PRPackedBool mVisible; // is the caret blinking
|
|
PRPackedBool mDrawn; // this should be mutable
|
|
PRPackedBool mReadOnly; // it the caret in readonly state (draws differently)
|
|
PRPackedBool mShowDuringSelection; // show when text is selected
|
|
|
|
nsRect mCaretRect; // the last caret rect
|
|
nsIFrame* mLastCaretFrame; // store the frame the caret was last drawn in.
|
|
nsIView* mLastCaretView; // last view that we used for drawing. Cached so we can tell when we need to make a new RC
|
|
PRInt32 mLastContentOffset;
|
|
#ifdef IBMBIDI
|
|
//---------------------------------------IBMBIDI----------------------------------------------
|
|
nsRect mHookRect; // directional hook on the caret
|
|
nsCOMPtr<nsIBidiKeyboard> mBidiKeyboard; // Bidi keyboard object to set and query keyboard language
|
|
PRPackedBool mKeyboardRTL; // is the keyboard language right-to-left
|
|
//-------------------------------------END OF IBM BIDI----------------------------------------
|
|
#endif
|
|
};
|
|
|