зеркало из https://github.com/mozilla/gecko-dev.git
Add event listeners to "prevent" ContextMenu, Key, Mouse and MouseMotion events from being processed.
Bug 128449 r=dcone sr=attinasi a=asa
This commit is contained in:
rods%netscape.com
Родитель
d391f38ecb
Коммит
e3c71475b1
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@ -60,6 +60,7 @@ REQUIRES = xpcom \
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$(NULL)
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CPPSRCS = \
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nsPrintPreviewListener.cpp \
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nsCommentNode.cpp \
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nsContentIterator.cpp \
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nsContentList.cpp \
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@ -60,6 +60,7 @@ REQUIRES = xpcom \
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$(NULL)
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CPP_OBJS= \
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.\$(OBJDIR)\nsPrintPreviewListener.obj \
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.\$(OBJDIR)\nsPrintProgress.obj \
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.\$(OBJDIR)\nsPrintProgressParams.obj \
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.\$(OBJDIR)\nsStyleContext.obj \
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@ -131,6 +131,7 @@ static NS_DEFINE_IID(kPrinterEnumeratorCID, NS_PRINTER_ENUMERATOR_CID);
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// Printing Events
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#include "nsIEventQueue.h"
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#include "nsIEventQueueService.h"
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#include "nsPrintPreviewListener.h"
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// Printing
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#include "nsIWebBrowserPrint.h"
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@ -421,6 +422,7 @@ public:
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nsCOMPtr<nsIPrintSettings> mPrintSettings;
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nsCOMPtr<nsIPrintOptions> mPrintOptions;
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nsPrintPreviewListener* mPPEventListeners;
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#ifdef DEBUG_PRINTING
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FILE * mDebugFD;
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@ -589,6 +591,7 @@ private:
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void InstallNewPresentation();
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void ReturnToGalleyPresentation();
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void TurnScriptingOn(PRBool aDoTurnOn);
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void InstallPrintPreviewListener();
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#endif
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@ -810,7 +813,7 @@ PrintData::PrintData() :
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mIsAborted(PR_FALSE), mPreparingForPrint(PR_FALSE), mDocWasToBeDestroyed(PR_FALSE),
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mShrinkToFit(PR_FALSE), mPrintFrameType(nsIPrintSettings::kFramesAsIs),
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mNumPrintableDocs(0), mNumDocsPrinted(0), mNumPrintablePages(0), mNumPagesPrinted(0),
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mShrinkRatio(1.0), mOrigDCScale(1.0)
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mShrinkRatio(1.0), mOrigDCScale(1.0), mPPEventListeners(NULL)
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{
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#ifdef DEBUG_PRINTING
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mDebugFD = fopen("printing.log", "w");
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@ -819,6 +822,12 @@ PrintData::PrintData() :
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PrintData::~PrintData()
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{
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// remove the event listeners
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if (mPPEventListeners) {
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mPPEventListeners->RemoveListeners();
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NS_RELEASE(mPPEventListeners);
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}
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// Only Send an OnEndPrinting if we have started printing
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if (mOnStartSent) {
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OnEndPrinting();
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@ -3854,6 +3863,11 @@ DocumentViewerImpl::FindXMostFrameInList(nsIPresContext* aPresContext,
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rect.x += aX;
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rect.y += aY;
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nscoord xMost = rect.XMost();
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// make sure we have a reasonable value
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NS_ASSERTION(xMost < NS_UNCONSTRAINEDSIZE, "Some frame's size is bad.");
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if (xMost >= NS_UNCONSTRAINEDSIZE) {
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xMost = 0;
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}
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#ifdef DEBUG_PRINTING // keep this here but leave it turned off
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nsAutoString tmp;
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@ -5106,6 +5120,24 @@ DocumentViewerImpl::TurnScriptingOn(PRBool aDoTurnOn)
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scx->SetScriptsEnabled(aDoTurnOn, PR_TRUE);
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}
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//-------------------------------------------------------
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// Install our event listeners on the document to prevent
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// some events from being processed while in PrintPreview
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//
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// No return code - if this fails, there isn't much we can do
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void
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DocumentViewerImpl::InstallPrintPreviewListener()
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{
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if (!mPrt->mPPEventListeners) {
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nsCOMPtr<nsIDOMEventReceiver> evRec (do_QueryInterface(mDocument));
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mPrt->mPPEventListeners = new nsPrintPreviewListener(evRec);
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if (mPrt->mPPEventListeners) {
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mPrt->mPPEventListeners->AddListeners();
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}
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}
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}
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//----------------------------------------------------------------------
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static nsresult GetSeqFrameAndCountPages(PrintObject* aPO,
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nsIFrame*& aSeqFrame,
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@ -5391,6 +5423,8 @@ DocumentViewerImpl::InstallNewPresentation()
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}
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#endif
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InstallPrintPreviewListener();
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// Install the new Presentation
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mPresShell = prtObjToDisplay->mPresShell;
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mPresContext = prtObjToDisplay->mPresContext;
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@ -0,0 +1,188 @@
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/* -*- 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 Mozilla 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/MPL/
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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 the Mozilla browser.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications, Inc. Portions created by Netscape are
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* Copyright (C) 1999, Mozilla. All Rights Reserved.
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*
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* Contributor(s):
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*
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*/
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#include "nsPrintPreviewListener.h"
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#include "nsIDOMKeyEvent.h"
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NS_IMPL_ADDREF(nsPrintPreviewListener)
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NS_IMPL_RELEASE(nsPrintPreviewListener)
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NS_INTERFACE_MAP_BEGIN(nsPrintPreviewListener)
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NS_INTERFACE_MAP_ENTRY(nsIDOMContextMenuListener)
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NS_INTERFACE_MAP_ENTRY(nsIDOMKeyListener)
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NS_INTERFACE_MAP_ENTRY(nsIDOMMouseListener)
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NS_INTERFACE_MAP_ENTRY(nsIDOMMouseMotionListener)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIDOMEventListener, nsIDOMContextMenuListener)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMContextMenuListener)
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NS_INTERFACE_MAP_END
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//
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// nsPrintPreviewListener ctor
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//
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nsPrintPreviewListener::nsPrintPreviewListener (nsIDOMEventReceiver* aEVRec)
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: mEventReceiver(aEVRec),
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mRegFlags(REG_NONE_LISTENER)
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{
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NS_INIT_REFCNT();
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NS_ADDREF_THIS();
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} // ctor
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//-------------------------------------------------------
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//
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// AddListeners
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//
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// Subscribe to the events that will allow us to track various events.
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//
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nsresult
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nsPrintPreviewListener::AddListeners()
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{
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if (mRegFlags != REG_NONE_LISTENER) return NS_ERROR_FAILURE;
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if (mEventReceiver) {
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nsIDOMContextMenuListener *pListener = NS_STATIC_CAST(nsIDOMContextMenuListener *, this);
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NS_ASSERTION(pListener, "Cast can't fail!");
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nsresult rv = mEventReceiver->AddEventListenerByIID(pListener, NS_GET_IID(nsIDOMContextMenuListener));
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NS_ENSURE_SUCCESS(rv, rv);
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mRegFlags |= REG_CONTEXTMENU_LISTENER;
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rv = mEventReceiver->AddEventListenerByIID(pListener, NS_GET_IID(nsIDOMKeyListener));
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NS_ENSURE_SUCCESS(rv, rv);
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mRegFlags |= REG_KEY_LISTENER;
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rv = mEventReceiver->AddEventListenerByIID(pListener, NS_GET_IID(nsIDOMMouseListener));
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NS_ENSURE_SUCCESS(rv, rv);
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mRegFlags |= REG_MOUSE_LISTENER;
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rv = mEventReceiver->AddEventListenerByIID(pListener, NS_GET_IID(nsIDOMMouseMotionListener));
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NS_ENSURE_SUCCESS(rv, rv);
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mRegFlags |= REG_MOUSEMOTION_LISTENER;
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}
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return NS_OK;
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}
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//-------------------------------------------------------
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//
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// RemoveListeners
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//
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// Unsubscribe from all the various events that we were listening to.
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//
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nsresult
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nsPrintPreviewListener::RemoveListeners()
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{
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if (mEventReceiver && mRegFlags != REG_NONE_LISTENER) {
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nsIDOMContextMenuListener *pListener = NS_STATIC_CAST(nsIDOMContextMenuListener *, this);
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NS_ASSERTION(pListener, "Cast can't fail!");
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// ignore return values, so we can try to unregister the other listeners
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if (mRegFlags & REG_CONTEXTMENU_LISTENER) {
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mEventReceiver->RemoveEventListenerByIID(pListener, NS_GET_IID(nsIDOMContextMenuListener));
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}
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if (mRegFlags & REG_KEY_LISTENER) {
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mEventReceiver->RemoveEventListenerByIID(pListener, NS_GET_IID(nsIDOMKeyListener));
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}
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if (mRegFlags & REG_MOUSE_LISTENER) {
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mEventReceiver->RemoveEventListenerByIID(pListener, NS_GET_IID(nsIDOMMouseListener));
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}
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if (mRegFlags & REG_MOUSEMOTION_LISTENER) {
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mEventReceiver->RemoveEventListenerByIID(pListener, NS_GET_IID(nsIDOMMouseMotionListener));
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}
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}
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return NS_OK;
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}
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//-------------------------------------------------------
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//
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// IsKeyOK
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//
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// Helper function to let certain key events thru
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//
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static PRBool IsKeyOK(nsIDOMEvent* aEvent)
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{
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const PRUint32 kOKKeyCodes[] = {nsIDOMKeyEvent::DOM_VK_PAGE_UP, nsIDOMKeyEvent::DOM_VK_PAGE_DOWN,
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nsIDOMKeyEvent::DOM_VK_UP, nsIDOMKeyEvent::DOM_VK_DOWN,
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nsIDOMKeyEvent::DOM_VK_HOME, nsIDOMKeyEvent::DOM_VK_END, 0};
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nsCOMPtr<nsIDOMKeyEvent> keyEvent(do_QueryInterface(aEvent));
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if (keyEvent) {
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PRBool b;
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keyEvent->GetAltKey(&b);
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if (b) return PR_FALSE;
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keyEvent->GetCtrlKey(&b);
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if (b) return PR_FALSE;
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keyEvent->GetShiftKey(&b);
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if (b) return PR_FALSE;
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PRUint32 keyCode;
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keyEvent->GetKeyCode(&keyCode);
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PRInt32 i = 0;
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while (kOKKeyCodes[i] != 0) {
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if (keyCode == kOKKeyCodes[i]) {
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return PR_TRUE;
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}
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i++;
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}
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}
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return PR_FALSE;
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}
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//-------------------------------------------------------
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//
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// KeyDown
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//
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NS_IMETHODIMP nsPrintPreviewListener::KeyDown(nsIDOMEvent* aKeyEvent)
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{
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if (!IsKeyOK(aKeyEvent)) {
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aKeyEvent->PreventDefault();
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}
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return NS_OK;
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}
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//-------------------------------------------------------
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//
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// KeyUp
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//
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NS_IMETHODIMP nsPrintPreviewListener::KeyUp(nsIDOMEvent* aKeyEvent)
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{
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if (!IsKeyOK(aKeyEvent)) {
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aKeyEvent->PreventDefault();
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}
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return NS_OK;
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}
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//-------------------------------------------------------
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//
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// KeyPress
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//
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NS_IMETHODIMP nsPrintPreviewListener::KeyPress(nsIDOMEvent* aKeyEvent)
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{
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if (!IsKeyOK(aKeyEvent)) {
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aKeyEvent->PreventDefault();
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}
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return NS_OK;
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}
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@ -0,0 +1,95 @@
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/* -*- 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 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 the Mozilla browser.
|
||||
*
|
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* The Initial Developer of the Original Code is Netscape
|
||||
* Communications, Inc. Portions created by Netscape are
|
||||
* Copyright (C) 1999, Mozilla. All Rights Reserved.
|
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*
|
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* Contributor(s):
|
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*
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*/
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#ifndef nsPrintPreviewListener_h__
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#define nsPrintPreviewListener_h__
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// Interfaces needed to be included
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#include "nsIDOMContextMenuListener.h"
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#include "nsIDOMKeyListener.h"
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#include "nsIDOMMouseListener.h"
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#include "nsIDOMMouseMotionListener.h"
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// Helper Classes
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#include "nsIDOMEventReceiver.h"
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#include "nsCOMPtr.h"
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#define REG_NONE_LISTENER 0x00
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#define REG_CONTEXTMENU_LISTENER 0x01
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#define REG_KEY_LISTENER 0x02
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#define REG_MOUSE_LISTENER 0x04
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#define REG_MOUSEMOTION_LISTENER 0x08
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//
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// class nsPrintPreviewListener
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//
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// The class that listens to the chrome events and tells the embedding
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// chrome to show context menus, as appropriate. Handles registering itself
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// with the DOM with AddChromeListeners() and removing itself with
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// RemoveChromeListeners().
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//
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class nsPrintPreviewListener : public nsIDOMContextMenuListener,
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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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NS_DECL_ISUPPORTS
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nsPrintPreviewListener(nsIDOMEventReceiver* aEVRec);
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// nsIDOMContextMenuListener
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NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent) { return NS_OK; }
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NS_IMETHOD ContextMenu (nsIDOMEvent* aEvent) { printf("preventing ContextMenu\n"); aEvent->PreventDefault(); return NS_OK; }
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// nsIDOMKeyListener
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NS_IMETHOD KeyDown(nsIDOMEvent* aKeyEvent);
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NS_IMETHOD KeyUp(nsIDOMEvent* aKeyEvent);
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NS_IMETHOD KeyPress(nsIDOMEvent* aKeyEvent);
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// nsIDOMMouseListener
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NS_IMETHOD MouseDown(nsIDOMEvent* aMouseEvent) { printf("preventing MouseDown\n"); aMouseEvent->StopPropagation();aMouseEvent->PreventDefault(); return NS_OK; }
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NS_IMETHOD MouseUp(nsIDOMEvent* aMouseEvent) { printf("preventing MouseUp\n"); aMouseEvent->StopPropagation();aMouseEvent->PreventDefault(); return NS_OK; }
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NS_IMETHOD MouseClick(nsIDOMEvent* aMouseEvent) { printf("preventing MouseClick\n"); aMouseEvent->StopPropagation();aMouseEvent->PreventDefault(); return NS_OK; }
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NS_IMETHOD MouseDblClick(nsIDOMEvent* aMouseEvent) { printf("preventing MouseDblClick\n"); aMouseEvent->StopPropagation();aMouseEvent->PreventDefault(); return NS_OK; }
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NS_IMETHOD MouseOver(nsIDOMEvent* aMouseEvent) { printf("preventing MouseOver\n"); aMouseEvent->StopPropagation();aMouseEvent->PreventDefault(); return NS_OK; }
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NS_IMETHOD MouseOut(nsIDOMEvent* aMouseEvent) { printf("preventing MouseOut\n"); aMouseEvent->StopPropagation();aMouseEvent->PreventDefault(); return NS_OK; }
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// nsIDOMMouseMotionListener
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NS_IMETHOD DragMove(nsIDOMEvent* aMouseEvent) { return NS_OK; };
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NS_IMETHOD MouseMove(nsIDOMEvent* aMouseEvent) { aMouseEvent->PreventDefault(); return NS_OK; }
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// Add/remove the relevant listeners, based on what interfaces
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// the embedding chrome implements.
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nsresult AddListeners();
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nsresult RemoveListeners();
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private:
|
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|
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nsCOMPtr<nsIDOMEventReceiver> mEventReceiver;
|
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PRInt8 mRegFlags;
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|
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}; // class nsPrintPreviewListener
|
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|
||||
|
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|
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#endif /* nsPrintPreviewListener_h__ */
|
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|
|
@ -1603,6 +1603,13 @@
|
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<FILEKIND>Text</FILEKIND>
|
||||
<FILEFLAGS>Debug</FILEFLAGS>
|
||||
</FILE>
|
||||
<FILE>
|
||||
<PATHTYPE>Name</PATHTYPE>
|
||||
<PATH>nsPrintPreviewListener.cpp</PATH>
|
||||
<PATHFORMAT>MacOS</PATHFORMAT>
|
||||
<FILEKIND>Text</FILEKIND>
|
||||
<FILEFLAGS>Debug</FILEFLAGS>
|
||||
</FILE>
|
||||
<FILE>
|
||||
<PATHTYPE>Name</PATHTYPE>
|
||||
<PATH>nsPrintProgress.cpp</PATH>
|
||||
|
|
@ -2938,6 +2945,11 @@
|
|||
<PATH>nsDocumentViewer.cpp</PATH>
|
||||
<PATHFORMAT>MacOS</PATHFORMAT>
|
||||
</FILEREF>
|
||||
<FILEREF>
|
||||
<PATHTYPE>Name</PATHTYPE>
|
||||
<PATH>nsPrintPreviewListener.cpp</PATH>
|
||||
<PATHFORMAT>MacOS</PATHFORMAT>
|
||||
</FILEREF>
|
||||
<FILEREF>
|
||||
<PATHTYPE>Name</PATHTYPE>
|
||||
<PATH>nsPrintProgress.cpp</PATH>
|
||||
|
|
@ -5080,6 +5092,13 @@
|
|||
<FILEKIND>Text</FILEKIND>
|
||||
<FILEFLAGS>Debug</FILEFLAGS>
|
||||
</FILE>
|
||||
<FILE>
|
||||
<PATHTYPE>Name</PATHTYPE>
|
||||
<PATH>nsPrintPreviewListener.cpp</PATH>
|
||||
<PATHFORMAT>MacOS</PATHFORMAT>
|
||||
<FILEKIND>Text</FILEKIND>
|
||||
<FILEFLAGS>Debug</FILEFLAGS>
|
||||
</FILE>
|
||||
<FILE>
|
||||
<PATHTYPE>Name</PATHTYPE>
|
||||
<PATH>nsPrintProgress.cpp</PATH>
|
||||
|
|
@ -6415,6 +6434,11 @@
|
|||
<PATH>nsDocumentViewer.cpp</PATH>
|
||||
<PATHFORMAT>MacOS</PATHFORMAT>
|
||||
</FILEREF>
|
||||
<FILEREF>
|
||||
<PATHTYPE>Name</PATHTYPE>
|
||||
<PATH>nsPrintPreviewListener.cpp</PATH>
|
||||
<PATHFORMAT>MacOS</PATHFORMAT>
|
||||
</FILEREF>
|
||||
<FILEREF>
|
||||
<PATHTYPE>Name</PATHTYPE>
|
||||
<PATH>nsPrintProgress.cpp</PATH>
|
||||
|
|
@ -7070,6 +7094,12 @@
|
|||
<PATH>nsDocumentViewer.cpp</PATH>
|
||||
<PATHFORMAT>MacOS</PATHFORMAT>
|
||||
</FILEREF>
|
||||
<FILEREF>
|
||||
<TARGETNAME>content.shlb</TARGETNAME>
|
||||
<PATHTYPE>Name</PATHTYPE>
|
||||
<PATH>nsPrintPreviewListener.cpp</PATH>
|
||||
<PATHFORMAT>MacOS</PATHFORMAT>
|
||||
</FILEREF>
|
||||
<FILEREF>
|
||||
<TARGETNAME>content.shlb</TARGETNAME>
|
||||
<PATHTYPE>Name</PATHTYPE>
|
||||
|
|
|
|||
|
|
@ -131,6 +131,7 @@ static NS_DEFINE_IID(kPrinterEnumeratorCID, NS_PRINTER_ENUMERATOR_CID);
|
|||
// Printing Events
|
||||
#include "nsIEventQueue.h"
|
||||
#include "nsIEventQueueService.h"
|
||||
#include "nsPrintPreviewListener.h"
|
||||
|
||||
// Printing
|
||||
#include "nsIWebBrowserPrint.h"
|
||||
|
|
@ -421,6 +422,7 @@ public:
|
|||
|
||||
nsCOMPtr<nsIPrintSettings> mPrintSettings;
|
||||
nsCOMPtr<nsIPrintOptions> mPrintOptions;
|
||||
nsPrintPreviewListener* mPPEventListeners;
|
||||
|
||||
#ifdef DEBUG_PRINTING
|
||||
FILE * mDebugFD;
|
||||
|
|
@ -589,6 +591,7 @@ private:
|
|||
void InstallNewPresentation();
|
||||
void ReturnToGalleyPresentation();
|
||||
void TurnScriptingOn(PRBool aDoTurnOn);
|
||||
void InstallPrintPreviewListener();
|
||||
#endif
|
||||
|
||||
|
||||
|
|
@ -810,7 +813,7 @@ PrintData::PrintData() :
|
|||
mIsAborted(PR_FALSE), mPreparingForPrint(PR_FALSE), mDocWasToBeDestroyed(PR_FALSE),
|
||||
mShrinkToFit(PR_FALSE), mPrintFrameType(nsIPrintSettings::kFramesAsIs),
|
||||
mNumPrintableDocs(0), mNumDocsPrinted(0), mNumPrintablePages(0), mNumPagesPrinted(0),
|
||||
mShrinkRatio(1.0), mOrigDCScale(1.0)
|
||||
mShrinkRatio(1.0), mOrigDCScale(1.0), mPPEventListeners(NULL)
|
||||
{
|
||||
#ifdef DEBUG_PRINTING
|
||||
mDebugFD = fopen("printing.log", "w");
|
||||
|
|
@ -819,6 +822,12 @@ PrintData::PrintData() :
|
|||
|
||||
PrintData::~PrintData()
|
||||
{
|
||||
// remove the event listeners
|
||||
if (mPPEventListeners) {
|
||||
mPPEventListeners->RemoveListeners();
|
||||
NS_RELEASE(mPPEventListeners);
|
||||
}
|
||||
|
||||
// Only Send an OnEndPrinting if we have started printing
|
||||
if (mOnStartSent) {
|
||||
OnEndPrinting();
|
||||
|
|
@ -3854,6 +3863,11 @@ DocumentViewerImpl::FindXMostFrameInList(nsIPresContext* aPresContext,
|
|||
rect.x += aX;
|
||||
rect.y += aY;
|
||||
nscoord xMost = rect.XMost();
|
||||
// make sure we have a reasonable value
|
||||
NS_ASSERTION(xMost < NS_UNCONSTRAINEDSIZE, "Some frame's size is bad.");
|
||||
if (xMost >= NS_UNCONSTRAINEDSIZE) {
|
||||
xMost = 0;
|
||||
}
|
||||
|
||||
#ifdef DEBUG_PRINTING // keep this here but leave it turned off
|
||||
nsAutoString tmp;
|
||||
|
|
@ -5106,6 +5120,24 @@ DocumentViewerImpl::TurnScriptingOn(PRBool aDoTurnOn)
|
|||
scx->SetScriptsEnabled(aDoTurnOn, PR_TRUE);
|
||||
}
|
||||
|
||||
//-------------------------------------------------------
|
||||
// Install our event listeners on the document to prevent
|
||||
// some events from being processed while in PrintPreview
|
||||
//
|
||||
// No return code - if this fails, there isn't much we can do
|
||||
void
|
||||
DocumentViewerImpl::InstallPrintPreviewListener()
|
||||
{
|
||||
if (!mPrt->mPPEventListeners) {
|
||||
nsCOMPtr<nsIDOMEventReceiver> evRec (do_QueryInterface(mDocument));
|
||||
mPrt->mPPEventListeners = new nsPrintPreviewListener(evRec);
|
||||
|
||||
if (mPrt->mPPEventListeners) {
|
||||
mPrt->mPPEventListeners->AddListeners();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------
|
||||
static nsresult GetSeqFrameAndCountPages(PrintObject* aPO,
|
||||
nsIFrame*& aSeqFrame,
|
||||
|
|
@ -5391,6 +5423,8 @@ DocumentViewerImpl::InstallNewPresentation()
|
|||
}
|
||||
#endif
|
||||
|
||||
InstallPrintPreviewListener();
|
||||
|
||||
// Install the new Presentation
|
||||
mPresShell = prtObjToDisplay->mPresShell;
|
||||
mPresContext = prtObjToDisplay->mPresContext;
|
||||
|
|
|
|||
|
|
@ -0,0 +1,188 @@
|
|||
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
||||
*
|
||||
* 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 the Mozilla browser.
|
||||
*
|
||||
* The Initial Developer of the Original Code is Netscape
|
||||
* Communications, Inc. Portions created by Netscape are
|
||||
* Copyright (C) 1999, Mozilla. All Rights Reserved.
|
||||
*
|
||||
* Contributor(s):
|
||||
*
|
||||
*/
|
||||
|
||||
#include "nsPrintPreviewListener.h"
|
||||
#include "nsIDOMKeyEvent.h"
|
||||
|
||||
NS_IMPL_ADDREF(nsPrintPreviewListener)
|
||||
NS_IMPL_RELEASE(nsPrintPreviewListener)
|
||||
|
||||
NS_INTERFACE_MAP_BEGIN(nsPrintPreviewListener)
|
||||
NS_INTERFACE_MAP_ENTRY(nsIDOMContextMenuListener)
|
||||
NS_INTERFACE_MAP_ENTRY(nsIDOMKeyListener)
|
||||
NS_INTERFACE_MAP_ENTRY(nsIDOMMouseListener)
|
||||
NS_INTERFACE_MAP_ENTRY(nsIDOMMouseMotionListener)
|
||||
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIDOMEventListener, nsIDOMContextMenuListener)
|
||||
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMContextMenuListener)
|
||||
NS_INTERFACE_MAP_END
|
||||
|
||||
|
||||
//
|
||||
// nsPrintPreviewListener ctor
|
||||
//
|
||||
nsPrintPreviewListener::nsPrintPreviewListener (nsIDOMEventReceiver* aEVRec)
|
||||
: mEventReceiver(aEVRec),
|
||||
mRegFlags(REG_NONE_LISTENER)
|
||||
{
|
||||
NS_INIT_REFCNT();
|
||||
NS_ADDREF_THIS();
|
||||
} // ctor
|
||||
|
||||
|
||||
//-------------------------------------------------------
|
||||
//
|
||||
// AddListeners
|
||||
//
|
||||
// Subscribe to the events that will allow us to track various events.
|
||||
//
|
||||
nsresult
|
||||
nsPrintPreviewListener::AddListeners()
|
||||
{
|
||||
if (mRegFlags != REG_NONE_LISTENER) return NS_ERROR_FAILURE;
|
||||
|
||||
if (mEventReceiver) {
|
||||
nsIDOMContextMenuListener *pListener = NS_STATIC_CAST(nsIDOMContextMenuListener *, this);
|
||||
NS_ASSERTION(pListener, "Cast can't fail!");
|
||||
|
||||
nsresult rv = mEventReceiver->AddEventListenerByIID(pListener, NS_GET_IID(nsIDOMContextMenuListener));
|
||||
NS_ENSURE_SUCCESS(rv, rv);
|
||||
mRegFlags |= REG_CONTEXTMENU_LISTENER;
|
||||
|
||||
rv = mEventReceiver->AddEventListenerByIID(pListener, NS_GET_IID(nsIDOMKeyListener));
|
||||
NS_ENSURE_SUCCESS(rv, rv);
|
||||
mRegFlags |= REG_KEY_LISTENER;
|
||||
|
||||
rv = mEventReceiver->AddEventListenerByIID(pListener, NS_GET_IID(nsIDOMMouseListener));
|
||||
NS_ENSURE_SUCCESS(rv, rv);
|
||||
mRegFlags |= REG_MOUSE_LISTENER;
|
||||
|
||||
rv = mEventReceiver->AddEventListenerByIID(pListener, NS_GET_IID(nsIDOMMouseMotionListener));
|
||||
NS_ENSURE_SUCCESS(rv, rv);
|
||||
mRegFlags |= REG_MOUSEMOTION_LISTENER;
|
||||
}
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------------
|
||||
//
|
||||
// RemoveListeners
|
||||
//
|
||||
// Unsubscribe from all the various events that we were listening to.
|
||||
//
|
||||
nsresult
|
||||
nsPrintPreviewListener::RemoveListeners()
|
||||
{
|
||||
if (mEventReceiver && mRegFlags != REG_NONE_LISTENER) {
|
||||
nsIDOMContextMenuListener *pListener = NS_STATIC_CAST(nsIDOMContextMenuListener *, this);
|
||||
NS_ASSERTION(pListener, "Cast can't fail!");
|
||||
|
||||
// ignore return values, so we can try to unregister the other listeners
|
||||
if (mRegFlags & REG_CONTEXTMENU_LISTENER) {
|
||||
mEventReceiver->RemoveEventListenerByIID(pListener, NS_GET_IID(nsIDOMContextMenuListener));
|
||||
}
|
||||
if (mRegFlags & REG_KEY_LISTENER) {
|
||||
mEventReceiver->RemoveEventListenerByIID(pListener, NS_GET_IID(nsIDOMKeyListener));
|
||||
}
|
||||
if (mRegFlags & REG_MOUSE_LISTENER) {
|
||||
mEventReceiver->RemoveEventListenerByIID(pListener, NS_GET_IID(nsIDOMMouseListener));
|
||||
}
|
||||
if (mRegFlags & REG_MOUSEMOTION_LISTENER) {
|
||||
mEventReceiver->RemoveEventListenerByIID(pListener, NS_GET_IID(nsIDOMMouseMotionListener));
|
||||
}
|
||||
}
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------
|
||||
//
|
||||
// IsKeyOK
|
||||
//
|
||||
// Helper function to let certain key events thru
|
||||
//
|
||||
static PRBool IsKeyOK(nsIDOMEvent* aEvent)
|
||||
{
|
||||
const PRUint32 kOKKeyCodes[] = {nsIDOMKeyEvent::DOM_VK_PAGE_UP, nsIDOMKeyEvent::DOM_VK_PAGE_DOWN,
|
||||
nsIDOMKeyEvent::DOM_VK_UP, nsIDOMKeyEvent::DOM_VK_DOWN,
|
||||
nsIDOMKeyEvent::DOM_VK_HOME, nsIDOMKeyEvent::DOM_VK_END, 0};
|
||||
|
||||
nsCOMPtr<nsIDOMKeyEvent> keyEvent(do_QueryInterface(aEvent));
|
||||
if (keyEvent) {
|
||||
PRBool b;
|
||||
keyEvent->GetAltKey(&b);
|
||||
if (b) return PR_FALSE;
|
||||
keyEvent->GetCtrlKey(&b);
|
||||
if (b) return PR_FALSE;
|
||||
keyEvent->GetShiftKey(&b);
|
||||
if (b) return PR_FALSE;
|
||||
|
||||
PRUint32 keyCode;
|
||||
keyEvent->GetKeyCode(&keyCode);
|
||||
PRInt32 i = 0;
|
||||
while (kOKKeyCodes[i] != 0) {
|
||||
if (keyCode == kOKKeyCodes[i]) {
|
||||
return PR_TRUE;
|
||||
}
|
||||
i++;
|
||||
}
|
||||
}
|
||||
return PR_FALSE;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------
|
||||
//
|
||||
// KeyDown
|
||||
//
|
||||
NS_IMETHODIMP nsPrintPreviewListener::KeyDown(nsIDOMEvent* aKeyEvent)
|
||||
{
|
||||
if (!IsKeyOK(aKeyEvent)) {
|
||||
aKeyEvent->PreventDefault();
|
||||
}
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------
|
||||
//
|
||||
// KeyUp
|
||||
//
|
||||
NS_IMETHODIMP nsPrintPreviewListener::KeyUp(nsIDOMEvent* aKeyEvent)
|
||||
{
|
||||
if (!IsKeyOK(aKeyEvent)) {
|
||||
aKeyEvent->PreventDefault();
|
||||
}
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
//-------------------------------------------------------
|
||||
//
|
||||
// KeyPress
|
||||
//
|
||||
NS_IMETHODIMP nsPrintPreviewListener::KeyPress(nsIDOMEvent* aKeyEvent)
|
||||
{
|
||||
if (!IsKeyOK(aKeyEvent)) {
|
||||
aKeyEvent->PreventDefault();
|
||||
}
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,95 @@
|
|||
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
||||
*
|
||||
* 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 the Mozilla browser.
|
||||
*
|
||||
* The Initial Developer of the Original Code is Netscape
|
||||
* Communications, Inc. Portions created by Netscape are
|
||||
* Copyright (C) 1999, Mozilla. All Rights Reserved.
|
||||
*
|
||||
* Contributor(s):
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef nsPrintPreviewListener_h__
|
||||
#define nsPrintPreviewListener_h__
|
||||
|
||||
// Interfaces needed to be included
|
||||
#include "nsIDOMContextMenuListener.h"
|
||||
#include "nsIDOMKeyListener.h"
|
||||
#include "nsIDOMMouseListener.h"
|
||||
#include "nsIDOMMouseMotionListener.h"
|
||||
// Helper Classes
|
||||
#include "nsIDOMEventReceiver.h"
|
||||
#include "nsCOMPtr.h"
|
||||
|
||||
#define REG_NONE_LISTENER 0x00
|
||||
#define REG_CONTEXTMENU_LISTENER 0x01
|
||||
#define REG_KEY_LISTENER 0x02
|
||||
#define REG_MOUSE_LISTENER 0x04
|
||||
#define REG_MOUSEMOTION_LISTENER 0x08
|
||||
|
||||
//
|
||||
// class nsPrintPreviewListener
|
||||
//
|
||||
// The class that listens to the chrome events and tells the embedding
|
||||
// chrome to show context menus, as appropriate. Handles registering itself
|
||||
// with the DOM with AddChromeListeners() and removing itself with
|
||||
// RemoveChromeListeners().
|
||||
//
|
||||
class nsPrintPreviewListener : public nsIDOMContextMenuListener,
|
||||
public nsIDOMKeyListener,
|
||||
public nsIDOMMouseListener,
|
||||
public nsIDOMMouseMotionListener
|
||||
|
||||
{
|
||||
public:
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
nsPrintPreviewListener(nsIDOMEventReceiver* aEVRec);
|
||||
|
||||
// nsIDOMContextMenuListener
|
||||
NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent) { return NS_OK; }
|
||||
NS_IMETHOD ContextMenu (nsIDOMEvent* aEvent) { printf("preventing ContextMenu\n"); aEvent->PreventDefault(); return NS_OK; }
|
||||
|
||||
// nsIDOMKeyListener
|
||||
NS_IMETHOD KeyDown(nsIDOMEvent* aKeyEvent);
|
||||
NS_IMETHOD KeyUp(nsIDOMEvent* aKeyEvent);
|
||||
NS_IMETHOD KeyPress(nsIDOMEvent* aKeyEvent);
|
||||
|
||||
// nsIDOMMouseListener
|
||||
NS_IMETHOD MouseDown(nsIDOMEvent* aMouseEvent) { printf("preventing MouseDown\n"); aMouseEvent->StopPropagation();aMouseEvent->PreventDefault(); return NS_OK; }
|
||||
NS_IMETHOD MouseUp(nsIDOMEvent* aMouseEvent) { printf("preventing MouseUp\n"); aMouseEvent->StopPropagation();aMouseEvent->PreventDefault(); return NS_OK; }
|
||||
NS_IMETHOD MouseClick(nsIDOMEvent* aMouseEvent) { printf("preventing MouseClick\n"); aMouseEvent->StopPropagation();aMouseEvent->PreventDefault(); return NS_OK; }
|
||||
NS_IMETHOD MouseDblClick(nsIDOMEvent* aMouseEvent) { printf("preventing MouseDblClick\n"); aMouseEvent->StopPropagation();aMouseEvent->PreventDefault(); return NS_OK; }
|
||||
NS_IMETHOD MouseOver(nsIDOMEvent* aMouseEvent) { printf("preventing MouseOver\n"); aMouseEvent->StopPropagation();aMouseEvent->PreventDefault(); return NS_OK; }
|
||||
NS_IMETHOD MouseOut(nsIDOMEvent* aMouseEvent) { printf("preventing MouseOut\n"); aMouseEvent->StopPropagation();aMouseEvent->PreventDefault(); return NS_OK; }
|
||||
|
||||
// nsIDOMMouseMotionListener
|
||||
NS_IMETHOD DragMove(nsIDOMEvent* aMouseEvent) { return NS_OK; };
|
||||
NS_IMETHOD MouseMove(nsIDOMEvent* aMouseEvent) { aMouseEvent->PreventDefault(); return NS_OK; }
|
||||
|
||||
// Add/remove the relevant listeners, based on what interfaces
|
||||
// the embedding chrome implements.
|
||||
nsresult AddListeners();
|
||||
nsresult RemoveListeners();
|
||||
|
||||
private:
|
||||
|
||||
nsCOMPtr<nsIDOMEventReceiver> mEventReceiver;
|
||||
PRInt8 mRegFlags;
|
||||
|
||||
}; // class nsPrintPreviewListener
|
||||
|
||||
|
||||
|
||||
#endif /* nsPrintPreviewListener_h__ */
|
||||
Загрузка…
Ссылка в новой задаче