зеркало из https://github.com/mozilla/gecko-dev.git
1168 строки
30 KiB
C++
1168 строки
30 KiB
C++
/* -*- Mode: C++; tab-width: 4; 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.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications 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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* Pierre Phaneuf <pp@ludusdesign.com>
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*/
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#include "nsEditorEventListeners.h"
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#include "nsEditor.h"
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#include "nsVoidArray.h"
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#include "nsString.h"
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#include "nsIDOMEvent.h"
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#include "nsIDOMDocument.h"
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#include "nsIDocument.h"
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#include "nsIPresShell.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMSelection.h"
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#include "nsIDOMCharacterData.h"
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#include "nsIEditProperty.h"
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#include "nsISupportsArray.h"
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#include "nsIStringStream.h"
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#include "nsIDOMKeyEvent.h"
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#include "nsIDOMMouseEvent.h"
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#include "nsIDOMNSUIEvent.h"
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#include "nsIPrivateTextEvent.h"
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#include "nsIPrivateCompositionEvent.h"
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#include "nsIEditorMailSupport.h"
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#include "nsIDocumentEncoder.h"
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#include "nsIPrivateDOMEvent.h"
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#include "nsIPref.h"
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// for repainting hack only
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#include "nsIView.h"
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#include "nsIViewManager.h"
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// end repainting hack only
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// Drag & Drop, Clipboard
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#include "nsIServiceManager.h"
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#include "nsWidgetsCID.h"
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#include "nsIClipboard.h"
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#include "nsIDragService.h"
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#include "nsIDragSession.h"
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#include "nsITransferable.h"
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#include "nsIFormatConverter.h"
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#include "nsIContentIterator.h"
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#include "nsIContent.h"
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#include "nsISupportsPrimitives.h"
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#include "nsLayoutCID.h"
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// Drag & Drop, Clipboard Support
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static NS_DEFINE_IID(kCDataFlavorCID, NS_DATAFLAVOR_CID);
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static NS_DEFINE_IID(kContentIteratorCID, NS_CONTENTITERATOR_CID);
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static NS_DEFINE_IID(kCXIFConverterCID, NS_XIFFORMATCONVERTER_CID);
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static NS_DEFINE_CID(kPrefServiceCID, NS_PREF_CID);
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//#define DEBUG_IME
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static nsresult ScrollSelectionIntoView(nsIEditor *aEditor);
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/*
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* nsTextEditorKeyListener implementation
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*/
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NS_IMPL_ADDREF(nsTextEditorKeyListener)
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NS_IMPL_RELEASE(nsTextEditorKeyListener)
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nsTextEditorKeyListener::nsTextEditorKeyListener()
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{
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NS_INIT_REFCNT();
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}
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nsTextEditorKeyListener::~nsTextEditorKeyListener()
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{
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}
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nsresult
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nsTextEditorKeyListener::QueryInterface(REFNSIID aIID, void** aInstancePtr)
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{
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if (nsnull == aInstancePtr) {
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return NS_ERROR_NULL_POINTER;
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}
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if (aIID.Equals(NS_GET_IID(nsISupports))) {
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*aInstancePtr = (void*)(nsISupports*)this;
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NS_ADDREF_THIS();
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return NS_OK;
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}
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if (aIID.Equals(NS_GET_IID(nsIDOMEventListener))) {
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*aInstancePtr = (void*)(nsIDOMEventListener*)this;
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NS_ADDREF_THIS();
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return NS_OK;
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}
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if (aIID.Equals(NS_GET_IID(nsIDOMKeyListener))) {
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*aInstancePtr = (void*)(nsIDOMKeyListener*)this;
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NS_ADDREF_THIS();
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return NS_OK;
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}
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return NS_NOINTERFACE;
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}
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nsresult
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nsTextEditorKeyListener::HandleEvent(nsIDOMEvent* aEvent)
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{
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return NS_OK;
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}
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// individual key handlers return NS_OK to indicate NOT consumed
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// by default, an error is returned indicating event is consumed
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// joki is fixing this interface.
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nsresult
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nsTextEditorKeyListener::KeyDown(nsIDOMEvent* aKeyEvent)
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{
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return NS_OK;
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}
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nsresult
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nsTextEditorKeyListener::KeyUp(nsIDOMEvent* aKeyEvent)
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{
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return NS_OK;
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}
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nsresult
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nsTextEditorKeyListener::KeyPress(nsIDOMEvent* aKeyEvent)
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{
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nsCOMPtr<nsIDOMKeyEvent>keyEvent;
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keyEvent = do_QueryInterface(aKeyEvent);
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if (!keyEvent)
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{
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//non-key event passed to keydown. bad things.
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return NS_OK;
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}
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nsCOMPtr<nsIPrivateDOMEvent> privateEvent = do_QueryInterface(aKeyEvent);
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if(privateEvent)
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{
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PRBool dispatchStopped;
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privateEvent->IsDispatchStopped(&dispatchStopped);
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if(dispatchStopped)
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return NS_OK;
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}
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PRBool keyProcessed;
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// we should check a flag here to see if we should be using built-in key bindings
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// mEditor->GetFlags(&flags);
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// if (flags & ...)
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ProcessShortCutKeys(aKeyEvent, keyProcessed);
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if (PR_FALSE==keyProcessed)
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{
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PRUint32 keyCode;
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PRUint32 flags;
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keyEvent->GetKeyCode(&keyCode);
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// if we are readonly or disabled, then do nothing.
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if (NS_SUCCEEDED(mEditor->GetFlags(&flags)))
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{
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if (flags & nsIHTMLEditor::eEditorReadonlyMask ||
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flags & nsIHTMLEditor::eEditorDisabledMask)
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return NS_OK;
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}
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else
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return NS_ERROR_FAILURE; // Editor unable to handle this.
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nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(mEditor);
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if (!htmlEditor) return NS_ERROR_NO_INTERFACE;
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// if there is no charCode, then it's a key that doesn't map to a character,
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// so look for special keys using keyCode
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if (0 != keyCode)
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{
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switch (keyCode)
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{
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// we should be handling DOM_VK_META here too but it doesn't exist at the moment
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case nsIDOMKeyEvent::DOM_VK_SHIFT:
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case nsIDOMKeyEvent::DOM_VK_CONTROL:
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case nsIDOMKeyEvent::DOM_VK_ALT:
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aKeyEvent->PreventDefault(); // consumed
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return NS_OK;
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break;
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case nsIDOMKeyEvent::DOM_VK_BACK_SPACE:
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mEditor->DeleteSelection(nsIEditor::ePrevious);
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ScrollSelectionIntoView(mEditor);
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aKeyEvent->PreventDefault(); // consumed
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return NS_OK;
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break;
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case nsIDOMKeyEvent::DOM_VK_DELETE:
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mEditor->DeleteSelection(nsIEditor::eNext);
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ScrollSelectionIntoView(mEditor);
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aKeyEvent->PreventDefault(); // consumed
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return NS_OK;
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break;
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case nsIDOMKeyEvent::DOM_VK_TAB:
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if ((flags & nsIHTMLEditor::eEditorSingleLineMask))
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return NS_OK; // let it be used for focus switching
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// else we insert the tab straight through
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htmlEditor->EditorKeyPress(keyEvent);
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ScrollSelectionIntoView(mEditor);
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aKeyEvent->PreventDefault(); // consumed
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return NS_OK;
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case nsIDOMKeyEvent::DOM_VK_RETURN:
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case nsIDOMKeyEvent::DOM_VK_ENTER:
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if (!(flags & nsIHTMLEditor::eEditorSingleLineMask))
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{
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//htmlEditor->InsertBreak();
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htmlEditor->EditorKeyPress(keyEvent);
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ScrollSelectionIntoView(mEditor);
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aKeyEvent->PreventDefault(); // consumed
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}
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return NS_OK;
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}
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}
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if (NS_SUCCEEDED(htmlEditor->EditorKeyPress(keyEvent)))
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ScrollSelectionIntoView(mEditor);
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}
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else
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ScrollSelectionIntoView(mEditor);
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return NS_OK; // we don't PreventDefault() here or keybindings like control-x won't work
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}
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nsresult
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nsTextEditorKeyListener::ProcessShortCutKeys(nsIDOMEvent* aKeyEvent, PRBool& aProcessed)
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{
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aProcessed=PR_FALSE;
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#ifdef USE_OLD_OBSOLETE_HARDWIRED_SHORTCUT_KEYS
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PRUint32 charCode;
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nsCOMPtr<nsIDOMKeyEvent>keyEvent;
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keyEvent = do_QueryInterface(aKeyEvent);
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if (!keyEvent) {
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//non-key event passed in. bad things.
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return NS_OK;
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}
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if (NS_SUCCEEDED(keyEvent->GetCharCode(&charCode)))
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{
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// Figure out the modifier key, different on every platform
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PRBool isOnlyPlatformModifierKey = PR_FALSE;
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PRBool isCtrlKey, isAltKey, isMetaKey, isShiftKey;
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if (NS_SUCCEEDED(keyEvent->GetAltKey(&isAltKey)) &&
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NS_SUCCEEDED(keyEvent->GetMetaKey(&isMetaKey)) &&
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NS_SUCCEEDED(keyEvent->GetShiftKey(&isShiftKey)) &&
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NS_SUCCEEDED(keyEvent->GetCtrlKey(&isCtrlKey)) )
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{
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#if defined(XP_MAC)
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isOnlyPlatformModifierKey = (isMetaKey &&
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!isShiftKey && !isCtrlKey && !isAltKey);
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#elif defined(XP_UNIX)
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isOnlyPlatformModifierKey = (isAltKey &&
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!isShiftKey && !isCtrlKey && !isMetaKey);
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#else /* Windows and default */
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isOnlyPlatformModifierKey = (isCtrlKey &&
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!isShiftKey && !isAltKey && !isMetaKey);
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#endif
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}
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if (PR_TRUE == isOnlyPlatformModifierKey)
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{
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// swallow all keys with only the platform modifier
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// even if we don't process them
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aProcessed = PR_TRUE;
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// A minimal set of fallback mappings in case
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// XUL keybindings are unavailable:
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switch (charCode)
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{
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// XXX: hard-coded select all
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case (PRUint32)('a'):
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if (mEditor)
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mEditor->SelectAll();
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break;
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// XXX: hard-coded cut
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case (PRUint32)('x'):
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if (mEditor)
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mEditor->Cut();
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break;
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// XXX: hard-coded copy
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case (PRUint32)('c'):
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if (mEditor)
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mEditor->Copy();
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break;
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// XXX: hard-coded paste
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case (PRUint32)('v'):
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if (mEditor)
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mEditor->Paste(nsIClipboard::kGlobalClipboard);
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break;
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// XXX: hard-coded undo
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case (PRUint32)('z'):
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if (mEditor)
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mEditor->Undo(1);
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break;
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// XXX: hard-coded redo
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case (PRUint32)('y'):
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if (mEditor)
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mEditor->Redo(1);
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break;
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}
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}
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}
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#endif
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return NS_OK;
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}
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nsresult
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ScrollSelectionIntoView(nsIEditor *aEditor)
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{
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if (! aEditor)
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return NS_ERROR_NULL_POINTER;
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nsCOMPtr<nsISelectionController> selCon;
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nsresult result = aEditor->GetSelectionController(getter_AddRefs(selCon));
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if (NS_FAILED(result) || ! selCon)
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return result ? result: NS_ERROR_FAILURE;
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return selCon->ScrollSelectionIntoView(nsISelectionController::SELECTION_NORMAL, nsISelectionController::SELECTION_FOCUS_REGION);
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}
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/*
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* nsTextEditorMouseListener implementation
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*/
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NS_IMPL_ADDREF(nsTextEditorMouseListener)
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NS_IMPL_RELEASE(nsTextEditorMouseListener)
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nsTextEditorMouseListener::nsTextEditorMouseListener()
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{
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NS_INIT_REFCNT();
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}
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nsTextEditorMouseListener::~nsTextEditorMouseListener()
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{
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}
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nsresult
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nsTextEditorMouseListener::QueryInterface(REFNSIID aIID, void** aInstancePtr)
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{
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if (nsnull == aInstancePtr) {
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return NS_ERROR_NULL_POINTER;
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}
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if (aIID.Equals(NS_GET_IID(nsISupports))) {
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*aInstancePtr = (void*)(nsISupports*)this;
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NS_ADDREF_THIS();
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return NS_OK;
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}
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if (aIID.Equals(NS_GET_IID(nsIDOMEventListener))) {
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*aInstancePtr = (void*)(nsIDOMEventListener*)this;
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NS_ADDREF_THIS();
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return NS_OK;
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}
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if (aIID.Equals(NS_GET_IID(nsIDOMMouseListener))) {
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*aInstancePtr = (void*)(nsIDOMMouseListener*)this;
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NS_ADDREF_THIS();
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return NS_OK;
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}
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return NS_NOINTERFACE;
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}
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nsresult
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nsTextEditorMouseListener::HandleEvent(nsIDOMEvent* aEvent)
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{
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return NS_OK;
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}
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// XXX: evil global functions, move them to proper support module
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nsresult
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IsNodeInSelection(nsIDOMNode *aInNode, nsIDOMSelection *aInSelection, PRBool &aOutIsInSel)
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{
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aOutIsInSel = PR_FALSE; // init out-param
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if (!aInNode || !aInSelection) { return NS_ERROR_NULL_POINTER; }
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nsCOMPtr<nsIContentIterator>iter;
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nsresult result = nsComponentManager::CreateInstance(kContentIteratorCID, nsnull,
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NS_GET_IID(nsIContentIterator),
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getter_AddRefs(iter));
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if (NS_FAILED(result)) { return result; }
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if (!iter) { return NS_ERROR_OUT_OF_MEMORY; }
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nsCOMPtr<nsIEnumerator> enumerator;
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result = aInSelection->GetEnumerator(getter_AddRefs(enumerator));
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if (NS_FAILED(result)) { return result; }
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if (!enumerator) { return NS_ERROR_OUT_OF_MEMORY; }
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for (enumerator->First(); NS_OK!=enumerator->IsDone(); enumerator->Next())
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{
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nsCOMPtr<nsISupports> currentItem;
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result = enumerator->CurrentItem(getter_AddRefs(currentItem));
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if ((NS_SUCCEEDED(result)) && (currentItem))
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{
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nsCOMPtr<nsIDOMRange> range( do_QueryInterface(currentItem) );
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iter->Init(range);
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nsCOMPtr<nsIContent> currentContent;
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iter->CurrentNode(getter_AddRefs(currentContent));
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while (NS_ENUMERATOR_FALSE == iter->IsDone())
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{
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nsCOMPtr<nsIDOMNode>currentNode = do_QueryInterface(currentContent);
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if (currentNode.get()==aInNode)
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{
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// if it's a start or end node, need to test whether the (x,y)
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// of the event falls within the selection
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// talk to Mike
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aOutIsInSel = PR_TRUE;
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return NS_OK;
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}
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/* do not check result here, and especially do not return the result code.
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* we rely on iter->IsDone to tell us when the iteration is complete
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*/
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iter->Next();
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iter->CurrentNode(getter_AddRefs(currentContent));
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}
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}
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}
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return NS_OK;
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}
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nsresult
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nsTextEditorMouseListener::MouseClick(nsIDOMEvent* aMouseEvent)
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{
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if (!aMouseEvent)
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return NS_OK; // NS_OK means "we didn't process the event". Go figure.
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nsCOMPtr<nsIDOMMouseEvent> mouseEvent ( do_QueryInterface(aMouseEvent) );
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if (!mouseEvent) {
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//non-ui event passed in. bad things.
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return NS_OK;
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}
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// If we got a mouse down inside the editing area, we should force the
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// IME to commit before we change the cursor position
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nsCOMPtr<nsIEditorIMESupport> imeEditor = do_QueryInterface(mEditor);
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if(imeEditor)
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imeEditor->ForceCompositionEnd();
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nsCOMPtr<nsIEditor> editor (do_QueryInterface(mEditor));
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if (!editor) { return NS_OK; }
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PRUint16 button = 0;
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mouseEvent->GetButton(&button);
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// middle-mouse click (paste);
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if (button == 2)
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{
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nsresult rv;
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NS_WITH_SERVICE(nsIPref, prefService, kPrefServiceCID, &rv);
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if (NS_SUCCEEDED(rv) && prefService)
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{
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PRBool doMiddleMousePaste = PR_FALSE;;
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rv = prefService->GetBoolPref("middlemouse.paste", &doMiddleMousePaste);
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if (NS_SUCCEEDED(rv) && doMiddleMousePaste)
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{
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// Set the selection to the point under the mouse cursor:
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nsCOMPtr<nsIDOMNSUIEvent> nsuiEvent (do_QueryInterface(aMouseEvent));
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if (!nsuiEvent)
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return NS_ERROR_NULL_POINTER;
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nsCOMPtr<nsIDOMNode> parent;
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if (!NS_SUCCEEDED(nsuiEvent->GetRangeParent(getter_AddRefs(parent))))
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return NS_ERROR_NULL_POINTER;
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PRInt32 offset = 0;
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if (!NS_SUCCEEDED(nsuiEvent->GetRangeOffset(&offset)))
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return NS_ERROR_NULL_POINTER;
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nsCOMPtr<nsIDOMSelection> selection;
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if (NS_SUCCEEDED(editor->GetSelection(getter_AddRefs(selection))))
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(void)selection->Collapse(parent, offset);
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// If the ctrl key is pressed, we'll do paste as quotation.
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// Would've used the alt key, but the kde wmgr treats alt-middle specially.
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nsCOMPtr<nsIEditorMailSupport> mailEditor;
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mouseEvent = do_QueryInterface(aMouseEvent);
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PRBool ctrlKey = PR_FALSE;
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mouseEvent->GetCtrlKey(&ctrlKey);
|
|
if (ctrlKey)
|
|
mailEditor = do_QueryInterface(mEditor);
|
|
|
|
if (mailEditor)
|
|
mailEditor->PasteAsQuotation(nsIClipboard::kSelectionClipboard);
|
|
else
|
|
editor->Paste(nsIClipboard::kSelectionClipboard);
|
|
|
|
// Prevent the event from bubbling up to be possibly handled
|
|
// again by the containing window:
|
|
mouseEvent->PreventBubble();
|
|
mouseEvent->PreventDefault();
|
|
|
|
// We processed the event, whether drop/paste succeeded or not
|
|
return NS_OK;
|
|
}
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTextEditorMouseListener::MouseDown(nsIDOMEvent* aMouseEvent)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTextEditorMouseListener::MouseUp(nsIDOMEvent* aMouseEvent)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsTextEditorMouseListener::MouseDblClick(nsIDOMEvent* aMouseEvent)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
nsresult
|
|
nsTextEditorMouseListener::MouseOver(nsIDOMEvent* aMouseEvent)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
nsresult
|
|
nsTextEditorMouseListener::MouseOut(nsIDOMEvent* aMouseEvent)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
/*
|
|
* nsTextEditorTextListener implementation
|
|
*/
|
|
|
|
NS_IMPL_ADDREF(nsTextEditorTextListener)
|
|
|
|
NS_IMPL_RELEASE(nsTextEditorTextListener)
|
|
|
|
|
|
nsTextEditorTextListener::nsTextEditorTextListener()
|
|
: mCommitText(PR_FALSE),
|
|
mInTransaction(PR_FALSE)
|
|
{
|
|
NS_INIT_REFCNT();
|
|
}
|
|
|
|
|
|
|
|
nsTextEditorTextListener::~nsTextEditorTextListener()
|
|
{
|
|
}
|
|
|
|
nsresult
|
|
nsTextEditorTextListener::QueryInterface(REFNSIID aIID, void** aInstancePtr)
|
|
{
|
|
if (nsnull == aInstancePtr) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
if (aIID.Equals(NS_GET_IID(nsISupports))) {
|
|
*aInstancePtr = (void*)(nsISupports*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
if (aIID.Equals(NS_GET_IID(nsIDOMEventListener))) {
|
|
*aInstancePtr = (void*)(nsIDOMEventListener*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
if (aIID.Equals(NS_GET_IID(nsIDOMTextListener))) {
|
|
*aInstancePtr = (void*)(nsIDOMTextListener*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
return NS_NOINTERFACE;
|
|
}
|
|
|
|
nsresult
|
|
nsTextEditorTextListener::HandleEvent(nsIDOMEvent* aEvent)
|
|
{
|
|
#ifdef DEBUG_IME
|
|
printf("nsTextEditorTextListener::HandleEvent\n");
|
|
#endif
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
nsresult
|
|
nsTextEditorTextListener::HandleText(nsIDOMEvent* aTextEvent)
|
|
{
|
|
#ifdef DEBUG_IME
|
|
printf("nsTextEditorTextListener::HandleText\n");
|
|
#endif
|
|
nsAutoString composedText;
|
|
nsresult result = NS_OK;
|
|
nsCOMPtr<nsIPrivateTextEvent> textEvent;
|
|
nsIPrivateTextRangeList *textRangeList;
|
|
nsTextEventReply *textEventReply;
|
|
|
|
textEvent = do_QueryInterface(aTextEvent);
|
|
if (!textEvent) {
|
|
//non-ui event passed in. bad things.
|
|
return NS_OK;
|
|
}
|
|
|
|
textEvent->GetText(composedText);
|
|
textEvent->GetInputRange(&textRangeList);
|
|
textEvent->GetEventReply(&textEventReply);
|
|
textRangeList->AddRef();
|
|
nsCOMPtr<nsIEditorIMESupport> imeEditor = do_QueryInterface(mEditor, &result);
|
|
if (imeEditor) {
|
|
result = imeEditor->SetCompositionString(composedText,textRangeList,textEventReply);
|
|
ScrollSelectionIntoView(mEditor);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* nsTextEditorDragListener implementation
|
|
*/
|
|
|
|
NS_IMPL_ADDREF(nsTextEditorDragListener)
|
|
|
|
NS_IMPL_RELEASE(nsTextEditorDragListener)
|
|
|
|
|
|
nsTextEditorDragListener::nsTextEditorDragListener()
|
|
{
|
|
NS_INIT_REFCNT();
|
|
}
|
|
|
|
nsTextEditorDragListener::~nsTextEditorDragListener()
|
|
{
|
|
}
|
|
|
|
nsresult
|
|
nsTextEditorDragListener::QueryInterface(REFNSIID aIID, void** aInstancePtr)
|
|
{
|
|
if (nsnull == aInstancePtr) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
if (aIID.Equals(NS_GET_IID(nsISupports))) {
|
|
*aInstancePtr = (void*)(nsISupports*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
if (aIID.Equals(NS_GET_IID(nsIDOMEventListener))) {
|
|
*aInstancePtr = (void*)(nsIDOMEventListener*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
if (aIID.Equals(NS_GET_IID(nsIDOMDragListener))) {
|
|
*aInstancePtr = (void*)(nsIDOMDragListener*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
return NS_NOINTERFACE;
|
|
}
|
|
|
|
|
|
|
|
nsresult
|
|
nsTextEditorDragListener::HandleEvent(nsIDOMEvent* aEvent)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsTextEditorDragListener::DragGesture(nsIDOMEvent* aDragEvent)
|
|
{
|
|
PRBool canDrag = PR_FALSE;
|
|
nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(mEditor);
|
|
if ( !htmlEditor )
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
// ...figure out if a drag should be started...
|
|
nsresult rv = htmlEditor->CanDrag(aDragEvent, canDrag);
|
|
if ( NS_SUCCEEDED(rv) && canDrag )
|
|
rv = htmlEditor->DoDrag(aDragEvent);
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsTextEditorDragListener::DragEnter(nsIDOMEvent* aDragEvent)
|
|
{
|
|
return DragOver(aDragEvent);
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsTextEditorDragListener::DragOver(nsIDOMEvent* aDragEvent)
|
|
{
|
|
nsresult rv;
|
|
NS_WITH_SERVICE ( nsIDragService, dragService, "component://netscape/widget/dragservice", &rv );
|
|
if ( NS_SUCCEEDED(rv) ) {
|
|
nsCOMPtr<nsIDragSession> dragSession(do_QueryInterface(dragService));
|
|
if ( dragSession ) {
|
|
PRUint32 flags;
|
|
if (NS_SUCCEEDED(mEditor->GetFlags(&flags))) {
|
|
if ((flags & nsIHTMLEditor::eEditorDisabledMask) ||
|
|
(flags & nsIHTMLEditor::eEditorReadonlyMask)) {
|
|
dragSession->SetCanDrop(PR_FALSE);
|
|
return NS_OK;
|
|
}
|
|
}
|
|
PRBool flavorSupported = PR_FALSE;
|
|
dragSession->IsDataFlavorSupported(kUnicodeMime, &flavorSupported);
|
|
if ( !flavorSupported )
|
|
dragSession->IsDataFlavorSupported(kHTMLMime, &flavorSupported);
|
|
if ( !flavorSupported )
|
|
dragSession->IsDataFlavorSupported(kFileMime, &flavorSupported);
|
|
if ( !flavorSupported )
|
|
dragSession->IsDataFlavorSupported(kJPEGImageMime, &flavorSupported);
|
|
if ( flavorSupported )
|
|
dragSession->SetCanDrop(PR_TRUE);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsTextEditorDragListener::DragExit(nsIDOMEvent* aDragEvent)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
nsresult
|
|
nsTextEditorDragListener::DragDrop(nsIDOMEvent* aMouseEvent)
|
|
{
|
|
nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(mEditor);
|
|
if ( htmlEditor )
|
|
{
|
|
nsresult rv;
|
|
NS_WITH_SERVICE(nsIDragService, dragService, "component://netscape/widget/dragservice", &rv);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
nsCOMPtr<nsIDragSession> dragSession(do_QueryInterface(dragService));
|
|
if (dragSession)
|
|
{
|
|
PRBool flavorSupported = PR_FALSE;
|
|
dragSession->IsDataFlavorSupported(kUnicodeMime, &flavorSupported);
|
|
if ( !flavorSupported )
|
|
dragSession->IsDataFlavorSupported(kHTMLMime, &flavorSupported);
|
|
if ( !flavorSupported )
|
|
dragSession->IsDataFlavorSupported(kFileMime, &flavorSupported);
|
|
if ( !flavorSupported )
|
|
dragSession->IsDataFlavorSupported(kJPEGImageMime, &flavorSupported);
|
|
if (! flavorSupported )
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
//some day we want to use another way to stop this from bubbling.
|
|
aMouseEvent->PreventBubble();
|
|
aMouseEvent->PreventDefault();
|
|
|
|
return htmlEditor->InsertFromDrop(aMouseEvent);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
nsTextEditorCompositionListener::nsTextEditorCompositionListener()
|
|
{
|
|
NS_INIT_REFCNT();
|
|
}
|
|
|
|
nsTextEditorCompositionListener::~nsTextEditorCompositionListener()
|
|
{
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsTextEditorCompositionListener::QueryInterface(REFNSIID aIID, void** aInstancePtr)
|
|
{
|
|
if (nsnull == aInstancePtr) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
if (aIID.Equals(NS_GET_IID(nsISupports))) {
|
|
*aInstancePtr = (void*)(nsISupports*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
if (aIID.Equals(NS_GET_IID(nsIDOMEventListener))) {
|
|
*aInstancePtr = (void*)(nsIDOMEventListener*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
if (aIID.Equals(NS_GET_IID(nsIDOMCompositionListener))) {
|
|
*aInstancePtr = (void*)(nsIDOMCompositionListener*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
return NS_NOINTERFACE;
|
|
}
|
|
|
|
NS_IMPL_ADDREF(nsTextEditorCompositionListener)
|
|
|
|
NS_IMPL_RELEASE(nsTextEditorCompositionListener)
|
|
|
|
nsresult
|
|
nsTextEditorCompositionListener::HandleEvent(nsIDOMEvent* aEvent)
|
|
{
|
|
#ifdef DEBUG_IME
|
|
printf("nsTextEditorCompositionListener::HandleEvent\n");
|
|
#endif
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsTextEditorCompositionListener::SetEditor(nsIEditor *aEditor)
|
|
{
|
|
nsCOMPtr<nsIEditorIMESupport> imeEditor = do_QueryInterface(aEditor);
|
|
if (!imeEditor) return; // should return an error here!
|
|
|
|
// note that we don't hold an extra reference here.
|
|
mEditor = imeEditor;
|
|
}
|
|
|
|
nsresult
|
|
nsTextEditorCompositionListener::HandleStartComposition(nsIDOMEvent* aCompositionEvent)
|
|
{
|
|
#ifdef DEBUG_IME
|
|
printf("nsTextEditorCompositionListener::HandleStartComposition\n");
|
|
#endif
|
|
nsCOMPtr<nsIPrivateCompositionEvent> pCompositionEvent = do_QueryInterface(aCompositionEvent);
|
|
nsTextEventReply* eventReply;
|
|
|
|
if (!pCompositionEvent) return NS_ERROR_FAILURE;
|
|
|
|
nsresult rv = pCompositionEvent->GetCompositionReply(&eventReply);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
return mEditor->BeginComposition(eventReply);
|
|
}
|
|
nsresult
|
|
nsTextEditorCompositionListener::HandleQueryComposition(nsIDOMEvent* aCompositionEvent)
|
|
{
|
|
#ifdef DEBUG_IME
|
|
printf("nsTextEditorCompositionListener::HandleQueryComposition\n");
|
|
#endif
|
|
nsCOMPtr<nsIPrivateCompositionEvent> pCompositionEvent = do_QueryInterface(aCompositionEvent);
|
|
nsTextEventReply* eventReply;
|
|
|
|
if (!pCompositionEvent) return NS_ERROR_FAILURE;
|
|
|
|
nsresult rv = pCompositionEvent->GetCompositionReply(&eventReply);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
return mEditor->QueryComposition(eventReply);
|
|
}
|
|
|
|
nsresult
|
|
nsTextEditorCompositionListener::HandleEndComposition(nsIDOMEvent* aCompositionEvent)
|
|
{
|
|
#ifdef DEBUG_IME
|
|
printf("nsTextEditorCompositionListener::HandleEndComposition\n");
|
|
#endif
|
|
return mEditor->EndComposition();
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Factory functions
|
|
*/
|
|
|
|
|
|
|
|
nsresult
|
|
NS_NewEditorKeyListener(nsIDOMEventListener ** aInstancePtrResult,
|
|
nsIEditor *aEditor)
|
|
{
|
|
nsTextEditorKeyListener* it = new nsTextEditorKeyListener();
|
|
if (nsnull == it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
it->SetEditor(aEditor);
|
|
|
|
return it->QueryInterface(NS_GET_IID(nsIDOMEventListener), (void **) aInstancePtrResult);
|
|
}
|
|
|
|
|
|
|
|
nsresult
|
|
NS_NewEditorMouseListener(nsIDOMEventListener ** aInstancePtrResult,
|
|
nsIEditor *aEditor)
|
|
{
|
|
nsTextEditorMouseListener* it = new nsTextEditorMouseListener();
|
|
if (nsnull == it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
it->SetEditor(aEditor);
|
|
|
|
return it->QueryInterface(NS_GET_IID(nsIDOMEventListener), (void **) aInstancePtrResult);
|
|
}
|
|
|
|
|
|
nsresult
|
|
NS_NewEditorTextListener(nsIDOMEventListener** aInstancePtrResult, nsIEditor* aEditor)
|
|
{
|
|
nsTextEditorTextListener* it = new nsTextEditorTextListener();
|
|
if (nsnull==it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
it->SetEditor(aEditor);
|
|
|
|
return it->QueryInterface(NS_GET_IID(nsIDOMEventListener), (void **) aInstancePtrResult);
|
|
}
|
|
|
|
|
|
|
|
nsresult
|
|
NS_NewEditorDragListener(nsIDOMEventListener ** aInstancePtrResult,
|
|
nsIEditor *aEditor)
|
|
{
|
|
nsTextEditorDragListener* it = new nsTextEditorDragListener();
|
|
if (nsnull == it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
it->SetEditor(aEditor);
|
|
|
|
return it->QueryInterface(NS_GET_IID(nsIDOMEventListener), (void **) aInstancePtrResult);
|
|
}
|
|
|
|
nsresult
|
|
NS_NewEditorCompositionListener(nsIDOMEventListener** aInstancePtrResult, nsIEditor* aEditor)
|
|
{
|
|
nsTextEditorCompositionListener* it = new nsTextEditorCompositionListener();
|
|
if (nsnull==it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
it->SetEditor(aEditor);
|
|
return it->QueryInterface(NS_GET_IID(nsIDOMEventListener), (void **) aInstancePtrResult);
|
|
}
|
|
|
|
nsresult
|
|
NS_NewEditorFocusListener(nsIDOMEventListener ** aInstancePtrResult,
|
|
nsIEditor *aEditor)
|
|
{
|
|
nsTextEditorFocusListener* it = new nsTextEditorFocusListener();
|
|
if (nsnull == it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
it->SetEditor(aEditor);
|
|
return it->QueryInterface(NS_GET_IID(nsIDOMEventListener), (void **) aInstancePtrResult);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* nsTextEditorFocusListener implementation
|
|
*/
|
|
|
|
NS_IMPL_ADDREF(nsTextEditorFocusListener)
|
|
|
|
NS_IMPL_RELEASE(nsTextEditorFocusListener)
|
|
|
|
|
|
nsTextEditorFocusListener::nsTextEditorFocusListener()
|
|
{
|
|
NS_INIT_REFCNT();
|
|
}
|
|
|
|
nsTextEditorFocusListener::~nsTextEditorFocusListener()
|
|
{
|
|
}
|
|
|
|
nsresult
|
|
nsTextEditorFocusListener::QueryInterface(REFNSIID aIID, void** aInstancePtr)
|
|
{
|
|
if (nsnull == aInstancePtr) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
static NS_DEFINE_IID(kIDOMFocusListenerIID, NS_IDOMFOCUSLISTENER_IID);
|
|
static NS_DEFINE_IID(kIDOMEventListenerIID, NS_IDOMEVENTLISTENER_IID);
|
|
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
|
|
if (aIID.Equals(kISupportsIID)) {
|
|
*aInstancePtr = (void*)(nsISupports*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
if (aIID.Equals(kIDOMEventListenerIID)) {
|
|
*aInstancePtr = (void*)(nsIDOMEventListener*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
if (aIID.Equals(kIDOMFocusListenerIID)) {
|
|
*aInstancePtr = (void*)(nsIDOMFocusListener*)this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
return NS_NOINTERFACE;
|
|
}
|
|
|
|
nsresult
|
|
nsTextEditorFocusListener::HandleEvent(nsIDOMEvent* aEvent)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTextEditorFocusListener::Focus(nsIDOMEvent* aEvent)
|
|
{
|
|
// turn on selection and caret
|
|
if (mEditor)
|
|
{
|
|
PRUint32 flags;
|
|
aEvent->PreventBubble();
|
|
mEditor->GetFlags(&flags);
|
|
if (! (flags & nsIHTMLEditor::eEditorDisabledMask))
|
|
{ // only enable caret and selection if the editor is not disabled
|
|
nsCOMPtr<nsIEditor>editor = do_QueryInterface(mEditor);
|
|
if (editor)
|
|
{
|
|
nsCOMPtr<nsISelectionController>selCon;
|
|
editor->GetSelectionController(getter_AddRefs(selCon));
|
|
if (selCon)
|
|
{
|
|
if (! (flags & nsIHTMLEditor::eEditorReadonlyMask))
|
|
{ // only enable caret if the editor is not readonly
|
|
selCon->SetCaretEnabled(PR_TRUE);
|
|
}
|
|
|
|
selCon->SetDisplaySelection(nsISelectionController::SELECTION_ON);
|
|
#ifdef USE_HACK_REPAINT
|
|
// begin hack repaint
|
|
nsCOMPtr<nsIViewManager> viewmgr;
|
|
ps->GetViewManager(getter_AddRefs(viewmgr));
|
|
if (viewmgr) {
|
|
nsIView* view;
|
|
viewmgr->GetRootView(view); // views are not refCounted
|
|
if (view) {
|
|
viewmgr->UpdateView(view,NS_VMREFRESH_IMMEDIATE);
|
|
}
|
|
}
|
|
// end hack repaint
|
|
#else
|
|
selCon->RepaintSelection(nsISelectionController::SELECTION_NORMAL);
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTextEditorFocusListener::Blur(nsIDOMEvent* aEvent)
|
|
{
|
|
// turn off selection and caret
|
|
if (mEditor)
|
|
{
|
|
PRUint32 flags;
|
|
aEvent->PreventBubble();
|
|
mEditor->GetFlags(&flags);
|
|
nsCOMPtr<nsIEditor>editor = do_QueryInterface(mEditor);
|
|
if (editor)
|
|
{
|
|
nsCOMPtr<nsISelectionController>selCon;
|
|
editor->GetSelectionController(getter_AddRefs(selCon));
|
|
if (selCon)
|
|
{
|
|
selCon->SetCaretEnabled(PR_FALSE);
|
|
if((flags & nsIHTMLEditor::eEditorSingleLineMask) ||
|
|
(flags & nsIHTMLEditor::eEditorPlaintextMask) ||
|
|
(flags & nsIHTMLEditor::eEditorPasswordMask) ||
|
|
(flags & nsIHTMLEditor::eEditorReadonlyMask) ||
|
|
(flags & nsIHTMLEditor::eEditorDisabledMask) ||
|
|
(flags & nsIHTMLEditor::eEditorFilterInputMask))
|
|
{
|
|
selCon->SetDisplaySelection(nsISelectionController::SELECTION_HIDDEN);//hide but do NOT turn off
|
|
}
|
|
else
|
|
{
|
|
selCon->SetDisplaySelection(nsISelectionController::SELECTION_DISABLED);
|
|
}
|
|
|
|
#ifdef USE_HACK_REPAINT
|
|
// begin hack repaint
|
|
nsCOMPtr<nsIViewManager> viewmgr;
|
|
ps->GetViewManager(getter_AddRefs(viewmgr));
|
|
if (viewmgr)
|
|
{
|
|
nsIView* view;
|
|
viewmgr->GetRootView(view); // views are not refCounted
|
|
if (view) {
|
|
viewmgr->UpdateView(view,NS_VMREFRESH_IMMEDIATE);
|
|
}
|
|
}
|
|
// end hack repaint
|
|
#else
|
|
selCon->RepaintSelection(nsISelectionController::SELECTION_NORMAL);
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|