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	 dbf1103279
			
		
	
	
		dbf1103279
		
	
	
	
	
		
			
			nsClipboardCommand::IsCommandEnabled() accesses document without null-check. That must be the cause of the reported crash. This patch just adds the check. Differential Revision: https://phabricator.services.mozilla.com/D19594 --HG-- extra : moz-landing-system : lando
		
			
				
	
	
		
			1168 lines
		
	
	
	
		
			44 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			1168 lines
		
	
	
	
		
			44 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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| /* vim: set ts=8 sts=2 et sw=2 tw=80: */
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| /* This Source Code Form is subject to the terms of the Mozilla Public
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|  * License, v. 2.0. If a copy of the MPL was not distributed with this
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|  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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| 
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| #include "nsGlobalWindowCommands.h"
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| 
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| #include "nsIComponentManager.h"
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| #include "nsIInterfaceRequestor.h"
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| #include "nsIInterfaceRequestorUtils.h"
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| #include "nsCommandParams.h"
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| #include "nsCRT.h"
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| #include "nsString.h"
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| #include "mozilla/ArrayUtils.h"
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| #include "mozilla/Preferences.h"
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| 
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| #include "nsIControllerCommandTable.h"
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| #include "nsICommandParams.h"
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| 
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| #include "nsPIDOMWindow.h"
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| #include "nsIPresShell.h"
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| #include "nsIDocShell.h"
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| #include "nsISelectionController.h"
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| #include "nsIWebNavigation.h"
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| #include "nsIContentViewerEdit.h"
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| #include "nsIContentViewer.h"
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| #include "nsFocusManager.h"
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| #include "nsCopySupport.h"
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| #include "nsIClipboard.h"
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| #include "ContentEventHandler.h"
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| #include "nsContentUtils.h"
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| #include "mozilla/Attributes.h"
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| #include "mozilla/BasicEvents.h"
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| #include "mozilla/TextEvents.h"
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| #include "mozilla/dom/Selection.h"
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| #include "mozilla/layers/KeyboardMap.h"
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| 
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| using namespace mozilla;
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| using namespace mozilla::layers;
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| 
 | |
| constexpr const char *sSelectAllString = "cmd_selectAll";
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| constexpr const char *sSelectNoneString = "cmd_selectNone";
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| constexpr const char *sCopyImageLocationString = "cmd_copyImageLocation";
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| constexpr const char *sCopyImageContentsString = "cmd_copyImageContents";
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| constexpr const char *sCopyImageString = "cmd_copyImage";
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| 
 | |
| constexpr const char *sScrollTopString = "cmd_scrollTop";
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| constexpr const char *sScrollBottomString = "cmd_scrollBottom";
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| constexpr const char *sScrollPageUpString = "cmd_scrollPageUp";
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| constexpr const char *sScrollPageDownString = "cmd_scrollPageDown";
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| constexpr const char *sScrollLineUpString = "cmd_scrollLineUp";
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| constexpr const char *sScrollLineDownString = "cmd_scrollLineDown";
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| constexpr const char *sScrollLeftString = "cmd_scrollLeft";
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| constexpr const char *sScrollRightString = "cmd_scrollRight";
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| constexpr const char *sMoveTopString = "cmd_moveTop";
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| constexpr const char *sMoveBottomString = "cmd_moveBottom";
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| constexpr const char *sMovePageUpString = "cmd_movePageUp";
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| constexpr const char *sMovePageDownString = "cmd_movePageDown";
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| constexpr const char *sLinePreviousString = "cmd_linePrevious";
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| constexpr const char *sLineNextString = "cmd_lineNext";
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| constexpr const char *sCharPreviousString = "cmd_charPrevious";
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| constexpr const char *sCharNextString = "cmd_charNext";
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| 
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| // These are so the browser can use editor navigation key bindings
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| // helps with accessibility (boolean pref accessibility.browsewithcaret)
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| 
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| constexpr const char *sSelectCharPreviousString = "cmd_selectCharPrevious";
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| constexpr const char *sSelectCharNextString = "cmd_selectCharNext";
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| 
 | |
| constexpr const char *sWordPreviousString = "cmd_wordPrevious";
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| constexpr const char *sWordNextString = "cmd_wordNext";
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| constexpr const char *sSelectWordPreviousString = "cmd_selectWordPrevious";
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| constexpr const char *sSelectWordNextString = "cmd_selectWordNext";
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| 
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| constexpr const char *sBeginLineString = "cmd_beginLine";
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| constexpr const char *sEndLineString = "cmd_endLine";
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| constexpr const char *sSelectBeginLineString = "cmd_selectBeginLine";
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| constexpr const char *sSelectEndLineString = "cmd_selectEndLine";
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| 
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| constexpr const char *sSelectLinePreviousString = "cmd_selectLinePrevious";
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| constexpr const char *sSelectLineNextString = "cmd_selectLineNext";
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| 
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| constexpr const char *sSelectPageUpString = "cmd_selectPageUp";
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| constexpr const char *sSelectPageDownString = "cmd_selectPageDown";
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| 
 | |
| constexpr const char *sSelectTopString = "cmd_selectTop";
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| constexpr const char *sSelectBottomString = "cmd_selectBottom";
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| 
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| // Physical-direction movement and selection commands
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| constexpr const char *sMoveLeftString = "cmd_moveLeft";
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| constexpr const char *sMoveRightString = "cmd_moveRight";
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| constexpr const char *sMoveUpString = "cmd_moveUp";
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| constexpr const char *sMoveDownString = "cmd_moveDown";
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| constexpr const char *sMoveLeft2String = "cmd_moveLeft2";
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| constexpr const char *sMoveRight2String = "cmd_moveRight2";
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| constexpr const char *sMoveUp2String = "cmd_moveUp2";
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| constexpr const char *sMoveDown2String = "cmd_moveDown2";
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| 
 | |
| constexpr const char *sSelectLeftString = "cmd_selectLeft";
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| constexpr const char *sSelectRightString = "cmd_selectRight";
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| constexpr const char *sSelectUpString = "cmd_selectUp";
 | |
| constexpr const char *sSelectDownString = "cmd_selectDown";
 | |
| constexpr const char *sSelectLeft2String = "cmd_selectLeft2";
 | |
| constexpr const char *sSelectRight2String = "cmd_selectRight2";
 | |
| constexpr const char *sSelectUp2String = "cmd_selectUp2";
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| constexpr const char *sSelectDown2String = "cmd_selectDown2";
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| 
 | |
| #if 0
 | |
| #  pragma mark -
 | |
| #endif
 | |
| 
 | |
| // a base class for selection-related commands, for code sharing
 | |
| class nsSelectionCommandsBase : public nsIControllerCommand {
 | |
|  public:
 | |
|   NS_DECL_ISUPPORTS
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|   NS_IMETHOD IsCommandEnabled(const char *aCommandName,
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|                               nsISupports *aCommandContext,
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|                               bool *_retval) override;
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|   NS_IMETHOD GetCommandStateParams(const char *aCommandName,
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|                                    nsICommandParams *aParams,
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|                                    nsISupports *aCommandContext) override;
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|   NS_IMETHOD DoCommandParams(const char *aCommandName,
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|                              nsICommandParams *aParams,
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|                              nsISupports *aCommandContext) override;
 | |
| 
 | |
|  protected:
 | |
|   virtual ~nsSelectionCommandsBase() {}
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| 
 | |
|   static nsresult GetPresShellFromWindow(nsPIDOMWindowOuter *aWindow,
 | |
|                                          nsIPresShell **aPresShell);
 | |
|   static nsresult GetSelectionControllerFromWindow(
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|       nsPIDOMWindowOuter *aWindow, nsISelectionController **aSelCon);
 | |
| 
 | |
|   // no member variables, please, we're stateless!
 | |
| };
 | |
| 
 | |
| // this class implements commands whose behavior depends on the 'browse with
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| // caret' setting
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| class nsSelectMoveScrollCommand : public nsSelectionCommandsBase {
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|  public:
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|   NS_IMETHOD DoCommand(const char *aCommandName,
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|                        nsISupports *aCommandContext) override;
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| 
 | |
|   // no member variables, please, we're stateless!
 | |
| };
 | |
| 
 | |
| // this class implements physical-movement versions of the above
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| class nsPhysicalSelectMoveScrollCommand : public nsSelectionCommandsBase {
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|  public:
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|   NS_IMETHOD DoCommand(const char *aCommandName,
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|                        nsISupports *aCommandContext) override;
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| 
 | |
|   // no member variables, please, we're stateless!
 | |
| };
 | |
| 
 | |
| // this class implements other selection commands
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| class nsSelectCommand : public nsSelectionCommandsBase {
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|  public:
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|   NS_IMETHOD DoCommand(const char *aCommandName,
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|                        nsISupports *aCommandContext) override;
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| 
 | |
|   // no member variables, please, we're stateless!
 | |
| };
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| 
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| // this class implements physical-movement versions of selection commands
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| class nsPhysicalSelectCommand : public nsSelectionCommandsBase {
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|  public:
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|   NS_IMETHOD DoCommand(const char *aCommandName,
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|                        nsISupports *aCommandContext) override;
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| 
 | |
|   // no member variables, please, we're stateless!
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| };
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| 
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| #if 0
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| #  pragma mark -
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| #endif
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| 
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| NS_IMPL_ISUPPORTS(nsSelectionCommandsBase, nsIControllerCommand)
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| 
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| NS_IMETHODIMP
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| nsSelectionCommandsBase::IsCommandEnabled(const char *aCommandName,
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|                                           nsISupports *aCommandContext,
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|                                           bool *outCmdEnabled) {
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|   // XXX this needs fixing. e.g. you can't scroll up if you're already at the
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|   // top of the document.
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|   *outCmdEnabled = true;
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|   return NS_OK;
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| }
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| 
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| NS_IMETHODIMP
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| nsSelectionCommandsBase::GetCommandStateParams(const char *aCommandName,
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|                                                nsICommandParams *aParams,
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|                                                nsISupports *aCommandContext) {
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|   // XXX we should probably return the enabled state
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|   return NS_ERROR_NOT_IMPLEMENTED;
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| }
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| 
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| NS_IMETHODIMP
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| nsSelectionCommandsBase::DoCommandParams(const char *aCommandName,
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|                                          nsICommandParams *aParams,
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|                                          nsISupports *aCommandContext) {
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|   return DoCommand(aCommandName, aCommandContext);
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| }
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| 
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| // protected methods
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| 
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| nsresult nsSelectionCommandsBase::GetPresShellFromWindow(
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|     nsPIDOMWindowOuter *aWindow, nsIPresShell **aPresShell) {
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|   *aPresShell = nullptr;
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|   NS_ENSURE_TRUE(aWindow, NS_ERROR_FAILURE);
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| 
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|   nsIDocShell *docShell = aWindow->GetDocShell();
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|   NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
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| 
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|   NS_IF_ADDREF(*aPresShell = docShell->GetPresShell());
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|   return NS_OK;
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| }
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| 
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| nsresult nsSelectionCommandsBase::GetSelectionControllerFromWindow(
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|     nsPIDOMWindowOuter *aWindow, nsISelectionController **aSelCon) {
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|   *aSelCon = nullptr;
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| 
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|   nsCOMPtr<nsIPresShell> presShell;
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|   GetPresShellFromWindow(aWindow, getter_AddRefs(presShell));
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|   if (presShell) return CallQueryInterface(presShell, aSelCon);
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| 
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|   return NS_ERROR_FAILURE;
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| }
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| 
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| #if 0
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| #  pragma mark -
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| #endif
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| 
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| // Helpers for nsSelectMoveScrollCommand and nsPhysicalSelectMoveScrollCommand
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| static void AdjustFocusAfterCaretMove(nsPIDOMWindowOuter *aWindow) {
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|   // adjust the focus to the new caret position
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|   nsIFocusManager *fm = nsFocusManager::GetFocusManager();
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|   if (fm) {
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|     RefPtr<dom::Element> result;
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|     fm->MoveFocus(aWindow, nullptr, nsIFocusManager::MOVEFOCUS_CARET,
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|                   nsIFocusManager::FLAG_NOSCROLL, getter_AddRefs(result));
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|   }
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| }
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| 
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| static bool IsCaretOnInWindow(nsPIDOMWindowOuter *aWindow,
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|                               nsISelectionController *aSelCont) {
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|   // We allow the caret to be moved with arrow keys on any window for which
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|   // the caret is enabled. In particular, this includes caret-browsing mode
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|   // in non-chrome documents.
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|   bool caretOn = false;
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|   aSelCont->GetCaretEnabled(&caretOn);
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|   if (!caretOn) {
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|     caretOn = Preferences::GetBool("accessibility.browsewithcaret");
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|     if (caretOn) {
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|       nsCOMPtr<nsIDocShell> docShell = aWindow->GetDocShell();
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|       if (docShell && docShell->ItemType() == nsIDocShellTreeItem::typeChrome) {
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|         caretOn = false;
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|       }
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|     }
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|   }
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|   return caretOn;
 | |
| }
 | |
| 
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| static constexpr struct BrowseCommand {
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|   const char *reverse, *forward;
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|   KeyboardScrollAction::KeyboardScrollActionType scrollAction;
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|   nsresult (NS_STDCALL nsISelectionController::*scroll)(bool);
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|   nsresult (NS_STDCALL nsISelectionController::*move)(bool, bool);
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| } browseCommands[] = {
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|     {sScrollTopString, sScrollBottomString,
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|      KeyboardScrollAction::eScrollComplete,
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|      &nsISelectionController::CompleteScroll},
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|     {sScrollPageUpString, sScrollPageDownString,
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|      KeyboardScrollAction::eScrollPage, &nsISelectionController::ScrollPage},
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|     {sScrollLineUpString, sScrollLineDownString,
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|      KeyboardScrollAction::eScrollLine, &nsISelectionController::ScrollLine},
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|     {sScrollLeftString, sScrollRightString,
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|      KeyboardScrollAction::eScrollCharacter,
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|      &nsISelectionController::ScrollCharacter},
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|     {sMoveTopString, sMoveBottomString, KeyboardScrollAction::eScrollComplete,
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|      &nsISelectionController::CompleteScroll,
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|      &nsISelectionController::CompleteMove},
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|     {sMovePageUpString, sMovePageDownString, KeyboardScrollAction::eScrollPage,
 | |
|      &nsISelectionController::ScrollPage, &nsISelectionController::PageMove},
 | |
|     {sLinePreviousString, sLineNextString, KeyboardScrollAction::eScrollLine,
 | |
|      &nsISelectionController::ScrollLine, &nsISelectionController::LineMove},
 | |
|     {sWordPreviousString, sWordNextString,
 | |
|      KeyboardScrollAction::eScrollCharacter,
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|      &nsISelectionController::ScrollCharacter,
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|      &nsISelectionController::WordMove},
 | |
|     {sCharPreviousString, sCharNextString,
 | |
|      KeyboardScrollAction::eScrollCharacter,
 | |
|      &nsISelectionController::ScrollCharacter,
 | |
|      &nsISelectionController::CharacterMove},
 | |
|     {sBeginLineString, sEndLineString, KeyboardScrollAction::eScrollComplete,
 | |
|      &nsISelectionController::CompleteScroll,
 | |
|      &nsISelectionController::IntraLineMove}};
 | |
| 
 | |
| nsresult nsSelectMoveScrollCommand::DoCommand(const char *aCommandName,
 | |
|                                               nsISupports *aCommandContext) {
 | |
|   nsCOMPtr<nsPIDOMWindowOuter> piWindow(do_QueryInterface(aCommandContext));
 | |
|   nsCOMPtr<nsISelectionController> selCont;
 | |
|   GetSelectionControllerFromWindow(piWindow, getter_AddRefs(selCont));
 | |
|   NS_ENSURE_TRUE(selCont, NS_ERROR_NOT_INITIALIZED);
 | |
| 
 | |
|   bool caretOn = IsCaretOnInWindow(piWindow, selCont);
 | |
| 
 | |
|   for (size_t i = 0; i < ArrayLength(browseCommands); i++) {
 | |
|     bool forward = !strcmp(aCommandName, browseCommands[i].forward);
 | |
|     if (forward || !strcmp(aCommandName, browseCommands[i].reverse)) {
 | |
|       if (caretOn && browseCommands[i].move &&
 | |
|           NS_SUCCEEDED((selCont->*(browseCommands[i].move))(forward, false))) {
 | |
|         AdjustFocusAfterCaretMove(piWindow);
 | |
|         return NS_OK;
 | |
|       }
 | |
|       return (selCont->*(browseCommands[i].scroll))(forward);
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   return NS_ERROR_NOT_IMPLEMENTED;
 | |
| }
 | |
| 
 | |
| // XXX It's not clear to me yet how we should handle the "scroll" option
 | |
| // for these commands; for now, I'm mapping them back to ScrollCharacter,
 | |
| // ScrollLine, etc., as if for horizontal-mode content, but this may need
 | |
| // to be reconsidered once we have more experience with vertical content.
 | |
| static const struct PhysicalBrowseCommand {
 | |
|   const char *command;
 | |
|   int16_t direction, amount;
 | |
|   KeyboardScrollAction::KeyboardScrollActionType scrollAction;
 | |
|   nsresult (NS_STDCALL nsISelectionController::*scroll)(bool);
 | |
| } physicalBrowseCommands[] = {
 | |
|     {sMoveLeftString, nsISelectionController::MOVE_LEFT, 0,
 | |
|      KeyboardScrollAction::eScrollCharacter,
 | |
|      &nsISelectionController::ScrollCharacter},
 | |
|     {sMoveRightString, nsISelectionController::MOVE_RIGHT, 0,
 | |
|      KeyboardScrollAction::eScrollCharacter,
 | |
|      &nsISelectionController::ScrollCharacter},
 | |
|     {sMoveUpString, nsISelectionController::MOVE_UP, 0,
 | |
|      KeyboardScrollAction::eScrollLine, &nsISelectionController::ScrollLine},
 | |
|     {sMoveDownString, nsISelectionController::MOVE_DOWN, 0,
 | |
|      KeyboardScrollAction::eScrollLine, &nsISelectionController::ScrollLine},
 | |
|     {sMoveLeft2String, nsISelectionController::MOVE_LEFT, 1,
 | |
|      KeyboardScrollAction::eScrollCharacter,
 | |
|      &nsISelectionController::ScrollCharacter},
 | |
|     {sMoveRight2String, nsISelectionController::MOVE_RIGHT, 1,
 | |
|      KeyboardScrollAction::eScrollCharacter,
 | |
|      &nsISelectionController::ScrollCharacter},
 | |
|     {sMoveUp2String, nsISelectionController::MOVE_UP, 1,
 | |
|      KeyboardScrollAction::eScrollComplete,
 | |
|      &nsISelectionController::CompleteScroll},
 | |
|     {sMoveDown2String, nsISelectionController::MOVE_DOWN, 1,
 | |
|      KeyboardScrollAction::eScrollComplete,
 | |
|      &nsISelectionController::CompleteScroll},
 | |
| };
 | |
| 
 | |
| nsresult nsPhysicalSelectMoveScrollCommand::DoCommand(
 | |
|     const char *aCommandName, nsISupports *aCommandContext) {
 | |
|   nsCOMPtr<nsPIDOMWindowOuter> piWindow(do_QueryInterface(aCommandContext));
 | |
|   nsCOMPtr<nsISelectionController> selCont;
 | |
|   GetSelectionControllerFromWindow(piWindow, getter_AddRefs(selCont));
 | |
|   NS_ENSURE_TRUE(selCont, NS_ERROR_NOT_INITIALIZED);
 | |
| 
 | |
|   bool caretOn = IsCaretOnInWindow(piWindow, selCont);
 | |
| 
 | |
|   for (size_t i = 0; i < ArrayLength(physicalBrowseCommands); i++) {
 | |
|     const PhysicalBrowseCommand &cmd = physicalBrowseCommands[i];
 | |
|     if (!strcmp(aCommandName, cmd.command)) {
 | |
|       int16_t dir = cmd.direction;
 | |
|       if (caretOn &&
 | |
|           NS_SUCCEEDED(selCont->PhysicalMove(dir, cmd.amount, false))) {
 | |
|         AdjustFocusAfterCaretMove(piWindow);
 | |
|         return NS_OK;
 | |
|       }
 | |
| 
 | |
|       bool forward = (dir == nsISelectionController::MOVE_RIGHT ||
 | |
|                       dir == nsISelectionController::MOVE_DOWN);
 | |
|       return (selCont->*(cmd.scroll))(forward);
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   return NS_ERROR_NOT_IMPLEMENTED;
 | |
| }
 | |
| 
 | |
| #if 0
 | |
| #  pragma mark -
 | |
| #endif
 | |
| 
 | |
| static const struct SelectCommand {
 | |
|   const char *reverse, *forward;
 | |
|   nsresult (NS_STDCALL nsISelectionController::*select)(bool, bool);
 | |
| } selectCommands[] = {{sSelectCharPreviousString, sSelectCharNextString,
 | |
|                        &nsISelectionController::CharacterMove},
 | |
|                       {sSelectWordPreviousString, sSelectWordNextString,
 | |
|                        &nsISelectionController::WordMove},
 | |
|                       {sSelectBeginLineString, sSelectEndLineString,
 | |
|                        &nsISelectionController::IntraLineMove},
 | |
|                       {sSelectLinePreviousString, sSelectLineNextString,
 | |
|                        &nsISelectionController::LineMove},
 | |
|                       {sSelectPageUpString, sSelectPageDownString,
 | |
|                        &nsISelectionController::PageMove},
 | |
|                       {sSelectTopString, sSelectBottomString,
 | |
|                        &nsISelectionController::CompleteMove}};
 | |
| 
 | |
| nsresult nsSelectCommand::DoCommand(const char *aCommandName,
 | |
|                                     nsISupports *aCommandContext) {
 | |
|   nsCOMPtr<nsPIDOMWindowOuter> piWindow(do_QueryInterface(aCommandContext));
 | |
|   nsCOMPtr<nsISelectionController> selCont;
 | |
|   GetSelectionControllerFromWindow(piWindow, getter_AddRefs(selCont));
 | |
|   NS_ENSURE_TRUE(selCont, NS_ERROR_NOT_INITIALIZED);
 | |
| 
 | |
|   // These commands are so the browser can use caret navigation key bindings -
 | |
|   // Helps with accessibility - aaronl@netscape.com
 | |
|   for (size_t i = 0; i < ArrayLength(selectCommands); i++) {
 | |
|     bool forward = !strcmp(aCommandName, selectCommands[i].forward);
 | |
|     if (forward || !strcmp(aCommandName, selectCommands[i].reverse)) {
 | |
|       return (selCont->*(selectCommands[i].select))(forward, true);
 | |
|     }
 | |
|   }
 | |
|   return NS_ERROR_NOT_IMPLEMENTED;
 | |
| }
 | |
| 
 | |
| #if 0
 | |
| #  pragma mark -
 | |
| #endif
 | |
| 
 | |
| static const struct PhysicalSelectCommand {
 | |
|   const char *command;
 | |
|   int16_t direction, amount;
 | |
| } physicalSelectCommands[] = {
 | |
|     {sSelectLeftString, nsISelectionController::MOVE_LEFT, 0},
 | |
|     {sSelectRightString, nsISelectionController::MOVE_RIGHT, 0},
 | |
|     {sSelectUpString, nsISelectionController::MOVE_UP, 0},
 | |
|     {sSelectDownString, nsISelectionController::MOVE_DOWN, 0},
 | |
|     {sSelectLeft2String, nsISelectionController::MOVE_LEFT, 1},
 | |
|     {sSelectRight2String, nsISelectionController::MOVE_RIGHT, 1},
 | |
|     {sSelectUp2String, nsISelectionController::MOVE_UP, 1},
 | |
|     {sSelectDown2String, nsISelectionController::MOVE_DOWN, 1}};
 | |
| 
 | |
| nsresult nsPhysicalSelectCommand::DoCommand(const char *aCommandName,
 | |
|                                             nsISupports *aCommandContext) {
 | |
|   nsCOMPtr<nsPIDOMWindowOuter> piWindow(do_QueryInterface(aCommandContext));
 | |
|   nsCOMPtr<nsISelectionController> selCont;
 | |
|   GetSelectionControllerFromWindow(piWindow, getter_AddRefs(selCont));
 | |
|   NS_ENSURE_TRUE(selCont, NS_ERROR_NOT_INITIALIZED);
 | |
| 
 | |
|   for (size_t i = 0; i < ArrayLength(physicalSelectCommands); i++) {
 | |
|     if (!strcmp(aCommandName, physicalSelectCommands[i].command)) {
 | |
|       return selCont->PhysicalMove(physicalSelectCommands[i].direction,
 | |
|                                    physicalSelectCommands[i].amount, true);
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   return NS_ERROR_NOT_IMPLEMENTED;
 | |
| }
 | |
| 
 | |
| #if 0
 | |
| #  pragma mark -
 | |
| #endif
 | |
| 
 | |
| class nsClipboardCommand final : public nsIControllerCommand {
 | |
|   ~nsClipboardCommand() {}
 | |
| 
 | |
|  public:
 | |
|   NS_DECL_ISUPPORTS
 | |
|   NS_DECL_NSICONTROLLERCOMMAND
 | |
| };
 | |
| 
 | |
| NS_IMPL_ISUPPORTS(nsClipboardCommand, nsIControllerCommand)
 | |
| 
 | |
| nsresult nsClipboardCommand::IsCommandEnabled(const char *aCommandName,
 | |
|                                               nsISupports *aContext,
 | |
|                                               bool *outCmdEnabled) {
 | |
|   NS_ENSURE_ARG_POINTER(outCmdEnabled);
 | |
|   *outCmdEnabled = false;
 | |
| 
 | |
|   if (strcmp(aCommandName, "cmd_copy") &&
 | |
|       strcmp(aCommandName, "cmd_copyAndCollapseToEnd") &&
 | |
|       strcmp(aCommandName, "cmd_cut") && strcmp(aCommandName, "cmd_paste")) {
 | |
|     return NS_OK;
 | |
|   }
 | |
| 
 | |
|   nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryInterface(aContext);
 | |
|   NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
 | |
|   RefPtr<Document> doc = window->GetExtantDoc();
 | |
|   NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
 | |
| 
 | |
|   if (doc->IsHTMLOrXHTML()) {
 | |
|     // In HTML and XHTML documents, we always want the cut, copy and paste
 | |
|     // commands to be enabled.
 | |
|     *outCmdEnabled = true;
 | |
|   } else {
 | |
|     // Cut isn't enabled in xul documents which use nsClipboardCommand
 | |
|     if (strcmp(aCommandName, "cmd_copy") == 0 ||
 | |
|         strcmp(aCommandName, "cmd_copyAndCollapseToEnd") == 0) {
 | |
|       *outCmdEnabled = nsCopySupport::CanCopy(doc);
 | |
|     }
 | |
|   }
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| nsresult nsClipboardCommand::DoCommand(const char *aCommandName,
 | |
|                                        nsISupports *aContext) {
 | |
|   if (strcmp(aCommandName, "cmd_cut") && strcmp(aCommandName, "cmd_copy") &&
 | |
|       strcmp(aCommandName, "cmd_copyAndCollapseToEnd") &&
 | |
|       strcmp(aCommandName, "cmd_paste"))
 | |
|     return NS_OK;
 | |
| 
 | |
|   nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryInterface(aContext);
 | |
|   NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
 | |
| 
 | |
|   nsIDocShell *docShell = window->GetDocShell();
 | |
|   NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
 | |
| 
 | |
|   nsCOMPtr<nsIPresShell> presShell = docShell->GetPresShell();
 | |
|   NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
 | |
| 
 | |
|   EventMessage eventMessage = eCopy;
 | |
|   if (strcmp(aCommandName, "cmd_cut") == 0) {
 | |
|     eventMessage = eCut;
 | |
|   } else if (strcmp(aCommandName, "cmd_paste") == 0) {
 | |
|     eventMessage = ePaste;
 | |
|   }
 | |
| 
 | |
|   bool actionTaken = false;
 | |
|   bool notCancelled = nsCopySupport::FireClipboardEvent(
 | |
|       eventMessage, nsIClipboard::kGlobalClipboard, presShell, nullptr,
 | |
|       &actionTaken);
 | |
| 
 | |
|   if (notCancelled && !strcmp(aCommandName, "cmd_copyAndCollapseToEnd")) {
 | |
|     dom::Selection *sel =
 | |
|         presShell->GetCurrentSelection(SelectionType::eNormal);
 | |
|     NS_ENSURE_TRUE(sel, NS_ERROR_FAILURE);
 | |
|     sel->CollapseToEnd(IgnoreErrors());
 | |
|   }
 | |
| 
 | |
|   return actionTaken ? NS_OK : NS_SUCCESS_DOM_NO_OPERATION;
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsClipboardCommand::GetCommandStateParams(const char *aCommandName,
 | |
|                                           nsICommandParams *aParams,
 | |
|                                           nsISupports *aCommandContext) {
 | |
|   return NS_ERROR_NOT_IMPLEMENTED;
 | |
| }
 | |
| 
 | |
| nsresult nsClipboardCommand::DoCommandParams(const char *aCommandName,
 | |
|                                              nsICommandParams *aParams,
 | |
|                                              nsISupports *aContext) {
 | |
|   return DoCommand(aCommandName, aContext);
 | |
| }
 | |
| 
 | |
| #if 0
 | |
| #  pragma mark -
 | |
| #endif
 | |
| 
 | |
| class nsSelectionCommand : public nsIControllerCommand {
 | |
|  public:
 | |
|   NS_DECL_ISUPPORTS
 | |
|   NS_DECL_NSICONTROLLERCOMMAND
 | |
| 
 | |
|  protected:
 | |
|   virtual ~nsSelectionCommand() {}
 | |
| 
 | |
|   virtual nsresult IsClipboardCommandEnabled(const char *aCommandName,
 | |
|                                              nsIContentViewerEdit *aEdit,
 | |
|                                              bool *outCmdEnabled) = 0;
 | |
|   virtual nsresult DoClipboardCommand(const char *aCommandName,
 | |
|                                       nsIContentViewerEdit *aEdit,
 | |
|                                       nsICommandParams *aParams) = 0;
 | |
| 
 | |
|   static nsresult GetContentViewerEditFromContext(
 | |
|       nsISupports *aContext, nsIContentViewerEdit **aEditInterface);
 | |
| 
 | |
|   // no member variables, please, we're stateless!
 | |
| };
 | |
| 
 | |
| NS_IMPL_ISUPPORTS(nsSelectionCommand, nsIControllerCommand)
 | |
| 
 | |
| /*---------------------------------------------------------------------------
 | |
| 
 | |
|   nsSelectionCommand
 | |
| 
 | |
| ----------------------------------------------------------------------------*/
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsSelectionCommand::IsCommandEnabled(const char *aCommandName,
 | |
|                                      nsISupports *aCommandContext,
 | |
|                                      bool *outCmdEnabled) {
 | |
|   NS_ENSURE_ARG_POINTER(outCmdEnabled);
 | |
|   *outCmdEnabled = false;
 | |
| 
 | |
|   nsCOMPtr<nsIContentViewerEdit> contentEdit;
 | |
|   GetContentViewerEditFromContext(aCommandContext, getter_AddRefs(contentEdit));
 | |
|   NS_ENSURE_TRUE(contentEdit, NS_ERROR_NOT_INITIALIZED);
 | |
| 
 | |
|   return IsClipboardCommandEnabled(aCommandName, contentEdit, outCmdEnabled);
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsSelectionCommand::DoCommand(const char *aCommandName,
 | |
|                               nsISupports *aCommandContext) {
 | |
|   nsCOMPtr<nsIContentViewerEdit> contentEdit;
 | |
|   GetContentViewerEditFromContext(aCommandContext, getter_AddRefs(contentEdit));
 | |
|   NS_ENSURE_TRUE(contentEdit, NS_ERROR_NOT_INITIALIZED);
 | |
| 
 | |
|   return DoClipboardCommand(aCommandName, contentEdit, nullptr);
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsSelectionCommand::GetCommandStateParams(const char *aCommandName,
 | |
|                                           nsICommandParams *aParams,
 | |
|                                           nsISupports *aCommandContext) {
 | |
|   return NS_ERROR_NOT_IMPLEMENTED;
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsSelectionCommand::DoCommandParams(const char *aCommandName,
 | |
|                                     nsICommandParams *aParams,
 | |
|                                     nsISupports *aCommandContext) {
 | |
|   nsCOMPtr<nsIContentViewerEdit> contentEdit;
 | |
|   GetContentViewerEditFromContext(aCommandContext, getter_AddRefs(contentEdit));
 | |
|   NS_ENSURE_TRUE(contentEdit, NS_ERROR_NOT_INITIALIZED);
 | |
| 
 | |
|   return DoClipboardCommand(aCommandName, contentEdit, aParams);
 | |
| }
 | |
| 
 | |
| nsresult nsSelectionCommand::GetContentViewerEditFromContext(
 | |
|     nsISupports *aContext, nsIContentViewerEdit **aEditInterface) {
 | |
|   NS_ENSURE_ARG(aEditInterface);
 | |
|   *aEditInterface = nullptr;
 | |
| 
 | |
|   nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryInterface(aContext);
 | |
|   NS_ENSURE_TRUE(window, NS_ERROR_INVALID_ARG);
 | |
| 
 | |
|   nsIDocShell *docShell = window->GetDocShell();
 | |
|   NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
 | |
| 
 | |
|   nsCOMPtr<nsIContentViewer> viewer;
 | |
|   docShell->GetContentViewer(getter_AddRefs(viewer));
 | |
|   nsCOMPtr<nsIContentViewerEdit> edit(do_QueryInterface(viewer));
 | |
|   NS_ENSURE_TRUE(edit, NS_ERROR_FAILURE);
 | |
| 
 | |
|   edit.forget(aEditInterface);
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| #if 0
 | |
| #  pragma mark -
 | |
| #endif
 | |
| 
 | |
| #define NS_DECL_CLIPBOARD_COMMAND(_cmd)                                       \
 | |
|   class _cmd : public nsSelectionCommand {                                    \
 | |
|    protected:                                                                 \
 | |
|     virtual nsresult IsClipboardCommandEnabled(const char *aCommandName,      \
 | |
|                                                nsIContentViewerEdit *aEdit,   \
 | |
|                                                bool *outCmdEnabled) override; \
 | |
|     virtual nsresult DoClipboardCommand(const char *aCommandName,             \
 | |
|                                         nsIContentViewerEdit *aEdit,          \
 | |
|                                         nsICommandParams *aParams) override;  \
 | |
|     /* no member variables, please, we're stateless! */                       \
 | |
|   };
 | |
| 
 | |
| NS_DECL_CLIPBOARD_COMMAND(nsClipboardCopyLinkCommand)
 | |
| NS_DECL_CLIPBOARD_COMMAND(nsClipboardImageCommands)
 | |
| NS_DECL_CLIPBOARD_COMMAND(nsClipboardSelectAllNoneCommands)
 | |
| NS_DECL_CLIPBOARD_COMMAND(nsClipboardGetContentsCommand)
 | |
| 
 | |
| nsresult nsClipboardCopyLinkCommand::IsClipboardCommandEnabled(
 | |
|     const char *aCommandName, nsIContentViewerEdit *aEdit,
 | |
|     bool *outCmdEnabled) {
 | |
|   return aEdit->GetInLink(outCmdEnabled);
 | |
| }
 | |
| 
 | |
| nsresult nsClipboardCopyLinkCommand::DoClipboardCommand(
 | |
|     const char *aCommandName, nsIContentViewerEdit *aEdit,
 | |
|     nsICommandParams *aParams) {
 | |
|   return aEdit->CopyLinkLocation();
 | |
| }
 | |
| 
 | |
| #if 0
 | |
| #  pragma mark -
 | |
| #endif
 | |
| 
 | |
| nsresult nsClipboardImageCommands::IsClipboardCommandEnabled(
 | |
|     const char *aCommandName, nsIContentViewerEdit *aEdit,
 | |
|     bool *outCmdEnabled) {
 | |
|   return aEdit->GetInImage(outCmdEnabled);
 | |
| }
 | |
| 
 | |
| nsresult nsClipboardImageCommands::DoClipboardCommand(
 | |
|     const char *aCommandName, nsIContentViewerEdit *aEdit,
 | |
|     nsICommandParams *aParams) {
 | |
|   if (!nsCRT::strcmp(sCopyImageLocationString, aCommandName))
 | |
|     return aEdit->CopyImage(nsIContentViewerEdit::COPY_IMAGE_TEXT);
 | |
|   if (!nsCRT::strcmp(sCopyImageContentsString, aCommandName))
 | |
|     return aEdit->CopyImage(nsIContentViewerEdit::COPY_IMAGE_DATA);
 | |
|   int32_t copyFlags = nsIContentViewerEdit::COPY_IMAGE_DATA |
 | |
|                       nsIContentViewerEdit::COPY_IMAGE_HTML;
 | |
|   if (aParams) {
 | |
|     copyFlags = aParams->AsCommandParams()->GetInt("imageCopy");
 | |
|   }
 | |
|   return aEdit->CopyImage(copyFlags);
 | |
| }
 | |
| 
 | |
| #if 0
 | |
| #  pragma mark -
 | |
| #endif
 | |
| 
 | |
| nsresult nsClipboardSelectAllNoneCommands::IsClipboardCommandEnabled(
 | |
|     const char *aCommandName, nsIContentViewerEdit *aEdit,
 | |
|     bool *outCmdEnabled) {
 | |
|   *outCmdEnabled = true;
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| nsresult nsClipboardSelectAllNoneCommands::DoClipboardCommand(
 | |
|     const char *aCommandName, nsIContentViewerEdit *aEdit,
 | |
|     nsICommandParams *aParams) {
 | |
|   if (!nsCRT::strcmp(sSelectAllString, aCommandName)) return aEdit->SelectAll();
 | |
| 
 | |
|   return aEdit->ClearSelection();
 | |
| }
 | |
| 
 | |
| #if 0
 | |
| #  pragma mark -
 | |
| #endif
 | |
| 
 | |
| nsresult nsClipboardGetContentsCommand::IsClipboardCommandEnabled(
 | |
|     const char *aCommandName, nsIContentViewerEdit *aEdit,
 | |
|     bool *outCmdEnabled) {
 | |
|   return aEdit->GetCanGetContents(outCmdEnabled);
 | |
| }
 | |
| 
 | |
| nsresult nsClipboardGetContentsCommand::DoClipboardCommand(
 | |
|     const char *aCommandName, nsIContentViewerEdit *aEdit,
 | |
|     nsICommandParams *aParams) {
 | |
|   NS_ENSURE_ARG(aParams);
 | |
| 
 | |
|   nsCommandParams *params = aParams->AsCommandParams();
 | |
| 
 | |
|   nsAutoCString mimeType("text/plain");
 | |
| 
 | |
|   nsAutoCString format;
 | |
|   if (NS_SUCCEEDED(params->GetCString("format", format))) {
 | |
|     mimeType.Assign(format);
 | |
|   }
 | |
| 
 | |
|   nsAutoString contents;
 | |
|   nsresult rv = aEdit->GetContents(mimeType.get(),
 | |
|                                    params->GetBool("selection_only"), contents);
 | |
|   if (NS_FAILED(rv)) {
 | |
|     return rv;
 | |
|   }
 | |
|   return params->SetString("result", contents);
 | |
| }
 | |
| 
 | |
| #if 0  // Remove unless needed again, bug 204777
 | |
| class nsWebNavigationBaseCommand : public nsIControllerCommand
 | |
| {
 | |
| public:
 | |
|   virtual ~nsWebNavigationBaseCommand() {}
 | |
| 
 | |
|   NS_DECL_ISUPPORTS
 | |
|   NS_DECL_NSICONTROLLERCOMMAND
 | |
| 
 | |
| protected:
 | |
| 
 | |
|   virtual nsresult    IsWebNavCommandEnabled(const char * aCommandName, nsIWebNavigation* aWebNavigation, bool *outCmdEnabled) = 0;
 | |
|   virtual nsresult    DoWebNavCommand(const char *aCommandName, nsIWebNavigation* aWebNavigation) = 0;
 | |
| 
 | |
|   static nsresult     GetWebNavigationFromContext(nsISupports *aContext, nsIWebNavigation **aWebNavigation);
 | |
| 
 | |
|   // no member variables, please, we're stateless!
 | |
| };
 | |
| 
 | |
| class nsGoForwardCommand : public nsWebNavigationBaseCommand
 | |
| {
 | |
| protected:
 | |
| 
 | |
|   virtual nsresult    IsWebNavCommandEnabled(const char * aCommandName, nsIWebNavigation* aWebNavigation, bool *outCmdEnabled);
 | |
|   virtual nsresult    DoWebNavCommand(const char *aCommandName, nsIWebNavigation* aWebNavigation);
 | |
|   // no member variables, please, we're stateless!
 | |
| };
 | |
| 
 | |
| class nsGoBackCommand : public nsWebNavigationBaseCommand
 | |
| {
 | |
| protected:
 | |
| 
 | |
|   virtual nsresult    IsWebNavCommandEnabled(const char * aCommandName, nsIWebNavigation* aWebNavigation, bool *outCmdEnabled);
 | |
|   virtual nsresult    DoWebNavCommand(const char *aCommandName, nsIWebNavigation* aWebNavigation);
 | |
|   // no member variables, please, we're stateless!
 | |
| };
 | |
| 
 | |
| /*---------------------------------------------------------------------------
 | |
| 
 | |
|   nsWebNavigationCommands
 | |
|      no params
 | |
| ----------------------------------------------------------------------------*/
 | |
| 
 | |
| NS_IMPL_ISUPPORTS(nsWebNavigationBaseCommand, nsIControllerCommand)
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsWebNavigationBaseCommand::IsCommandEnabled(const char * aCommandName,
 | |
|                                           nsISupports *aCommandContext,
 | |
|                                           bool *outCmdEnabled)
 | |
| {
 | |
|   NS_ENSURE_ARG_POINTER(outCmdEnabled);
 | |
|   *outCmdEnabled = false;
 | |
| 
 | |
|   nsCOMPtr<nsIWebNavigation> webNav;
 | |
|   GetWebNavigationFromContext(aCommandContext, getter_AddRefs(webNav));
 | |
|   NS_ENSURE_TRUE(webNav, NS_ERROR_INVALID_ARG);
 | |
| 
 | |
|   return IsCommandEnabled(aCommandName, webNav, outCmdEnabled);
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsWebNavigationBaseCommand::GetCommandStateParams(const char *aCommandName,
 | |
|                                             nsICommandParams *aParams, nsISupports *aCommandContext)
 | |
| {
 | |
|   // XXX we should probably return the enabled state
 | |
|   return NS_ERROR_NOT_IMPLEMENTED;
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsWebNavigationBaseCommand::DoCommand(const char *aCommandName,
 | |
|                                    nsISupports *aCommandContext)
 | |
| {
 | |
|   nsCOMPtr<nsIWebNavigation> webNav;
 | |
|   GetWebNavigationFromContext(aCommandContext, getter_AddRefs(webNav));
 | |
|   NS_ENSURE_TRUE(webNav, NS_ERROR_INVALID_ARG);
 | |
| 
 | |
|   return DoWebNavCommand(aCommandName, webNav);
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsWebNavigationBaseCommand::DoCommandParams(const char *aCommandName,
 | |
|                                        nsICommandParams *aParams, nsISupports *aCommandContext)
 | |
| {
 | |
|   return DoCommand(aCommandName, aCommandContext);
 | |
| }
 | |
| 
 | |
| nsresult
 | |
| nsWebNavigationBaseCommand::GetWebNavigationFromContext(nsISupports *aContext, nsIWebNavigation **aWebNavigation)
 | |
| {
 | |
|   nsCOMPtr<nsIInterfaceRequestor> windowReq = do_QueryInterface(aContext);
 | |
|   CallGetInterface(windowReq.get(), aWebNavigation);
 | |
|   return (*aWebNavigation) ? NS_OK : NS_ERROR_FAILURE;
 | |
| }
 | |
| 
 | |
| nsresult
 | |
| nsGoForwardCommand::IsWebNavCommandEnabled(const char * aCommandName, nsIWebNavigation* aWebNavigation, bool *outCmdEnabled)
 | |
| {
 | |
|   return aWebNavigation->GetCanGoForward(outCmdEnabled);
 | |
| }
 | |
| 
 | |
| nsresult
 | |
| nsGoForwardCommand::DoWebNavCommand(const char *aCommandName, nsIWebNavigation* aWebNavigation)
 | |
| {
 | |
|   return aWebNavigation->GoForward();
 | |
| }
 | |
| 
 | |
| nsresult
 | |
| nsGoBackCommand::IsWebNavCommandEnabled(const char * aCommandName, nsIWebNavigation* aWebNavigation, bool *outCmdEnabled)
 | |
| {
 | |
|   return aWebNavigation->GetCanGoBack(outCmdEnabled);
 | |
| }
 | |
| 
 | |
| nsresult
 | |
| nsGoBackCommand::DoWebNavCommand(const char *aCommandName, nsIWebNavigation* aWebNavigation)
 | |
| {
 | |
|   return aWebNavigation->GoBack();
 | |
| }
 | |
| #endif
 | |
| 
 | |
| class nsLookUpDictionaryCommand final : public nsIControllerCommand {
 | |
|  public:
 | |
|   NS_DECL_ISUPPORTS
 | |
|   NS_DECL_NSICONTROLLERCOMMAND
 | |
| 
 | |
|  private:
 | |
|   virtual ~nsLookUpDictionaryCommand() {}
 | |
| };
 | |
| 
 | |
| NS_IMPL_ISUPPORTS(nsLookUpDictionaryCommand, nsIControllerCommand)
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsLookUpDictionaryCommand::IsCommandEnabled(const char *aCommandName,
 | |
|                                             nsISupports *aCommandContext,
 | |
|                                             bool *aRetval) {
 | |
|   *aRetval = true;
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsLookUpDictionaryCommand::GetCommandStateParams(const char *aCommandName,
 | |
|                                                  nsICommandParams *aParams,
 | |
|                                                  nsISupports *aCommandContext) {
 | |
|   return NS_ERROR_NOT_IMPLEMENTED;
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsLookUpDictionaryCommand::DoCommand(const char *aCommandName,
 | |
|                                      nsISupports *aCommandContext) {
 | |
|   return NS_ERROR_NOT_IMPLEMENTED;
 | |
| }
 | |
| 
 | |
| NS_IMETHODIMP
 | |
| nsLookUpDictionaryCommand::DoCommandParams(const char *aCommandName,
 | |
|                                            nsICommandParams *aParams,
 | |
|                                            nsISupports *aCommandContext) {
 | |
|   if (NS_WARN_IF(!nsContentUtils::IsSafeToRunScript())) {
 | |
|     return NS_ERROR_NOT_AVAILABLE;
 | |
|   }
 | |
| 
 | |
|   nsCommandParams *params = aParams->AsCommandParams();
 | |
| 
 | |
|   ErrorResult error;
 | |
|   int32_t x = params->GetInt("x", error);
 | |
|   if (NS_WARN_IF(error.Failed())) {
 | |
|     return error.StealNSResult();
 | |
|   }
 | |
|   int32_t y = params->GetInt("y", error);
 | |
|   if (NS_WARN_IF(error.Failed())) {
 | |
|     return error.StealNSResult();
 | |
|   }
 | |
| 
 | |
|   LayoutDeviceIntPoint point(x, y);
 | |
| 
 | |
|   nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryInterface(aCommandContext);
 | |
|   if (NS_WARN_IF(!window)) {
 | |
|     return NS_ERROR_FAILURE;
 | |
|   }
 | |
| 
 | |
|   nsIDocShell *docShell = window->GetDocShell();
 | |
|   if (NS_WARN_IF(!docShell)) {
 | |
|     return NS_ERROR_FAILURE;
 | |
|   }
 | |
| 
 | |
|   nsCOMPtr<nsIPresShell> presShell = docShell->GetPresShell();
 | |
|   if (NS_WARN_IF(!presShell)) {
 | |
|     return NS_ERROR_FAILURE;
 | |
|   }
 | |
| 
 | |
|   nsPresContext *presContext = presShell->GetPresContext();
 | |
|   if (NS_WARN_IF(!presContext)) {
 | |
|     return NS_ERROR_FAILURE;
 | |
|   }
 | |
| 
 | |
|   nsCOMPtr<nsIWidget> widget = presContext->GetRootWidget();
 | |
|   if (NS_WARN_IF(!widget)) {
 | |
|     return NS_ERROR_FAILURE;
 | |
|   }
 | |
| 
 | |
|   WidgetQueryContentEvent charAt(true, eQueryCharacterAtPoint, widget);
 | |
|   charAt.mRefPoint.x = x;
 | |
|   charAt.mRefPoint.y = y;
 | |
|   ContentEventHandler handler(presContext);
 | |
|   handler.OnQueryCharacterAtPoint(&charAt);
 | |
| 
 | |
|   if (NS_WARN_IF(!charAt.mSucceeded) ||
 | |
|       charAt.mReply.mOffset == WidgetQueryContentEvent::NOT_FOUND) {
 | |
|     return NS_ERROR_FAILURE;
 | |
|   }
 | |
| 
 | |
|   WidgetQueryContentEvent textContent(true, eQueryTextContent, widget);
 | |
|   // OSX 10.7 queries 50 characters before/after current point.  So we fetch
 | |
|   // same length.
 | |
|   uint32_t offset = charAt.mReply.mOffset;
 | |
|   if (offset > 50) {
 | |
|     offset -= 50;
 | |
|   } else {
 | |
|     offset = 0;
 | |
|   }
 | |
|   textContent.InitForQueryTextContent(offset, 100);
 | |
|   handler.OnQueryTextContent(&textContent);
 | |
|   if (NS_WARN_IF(!textContent.mSucceeded ||
 | |
|                  textContent.mReply.mString.IsEmpty())) {
 | |
|     return NS_ERROR_FAILURE;
 | |
|   }
 | |
| 
 | |
|   // XXX nsIWordBreaker doesn't use contextual breaker.
 | |
|   // If OS provides it, widget should use it if contextual breaker is needed.
 | |
|   RefPtr<mozilla::intl::WordBreaker> wordBreaker =
 | |
|       nsContentUtils::WordBreaker();
 | |
|   if (NS_WARN_IF(!wordBreaker)) {
 | |
|     return NS_ERROR_FAILURE;
 | |
|   }
 | |
| 
 | |
|   mozilla::intl::WordRange range = wordBreaker->FindWord(
 | |
|       textContent.mReply.mString.get(), textContent.mReply.mString.Length(),
 | |
|       charAt.mReply.mOffset - offset);
 | |
|   if (range.mEnd == range.mBegin) {
 | |
|     return NS_ERROR_FAILURE;
 | |
|   }
 | |
|   range.mBegin += offset;
 | |
|   range.mEnd += offset;
 | |
| 
 | |
|   WidgetQueryContentEvent lookUpContent(true, eQueryTextContent, widget);
 | |
|   lookUpContent.InitForQueryTextContent(range.mBegin,
 | |
|                                         range.mEnd - range.mBegin);
 | |
|   lookUpContent.RequestFontRanges();
 | |
|   handler.OnQueryTextContent(&lookUpContent);
 | |
|   if (NS_WARN_IF(!lookUpContent.mSucceeded ||
 | |
|                  lookUpContent.mReply.mString.IsEmpty())) {
 | |
|     return NS_ERROR_FAILURE;
 | |
|   }
 | |
| 
 | |
|   WidgetQueryContentEvent charRect(true, eQueryTextRect, widget);
 | |
|   charRect.InitForQueryTextRect(range.mBegin, range.mEnd - range.mBegin);
 | |
|   handler.OnQueryTextRect(&charRect);
 | |
|   if (NS_WARN_IF(!charRect.mSucceeded)) {
 | |
|     return NS_ERROR_FAILURE;
 | |
|   }
 | |
| 
 | |
|   widget->LookUpDictionary(lookUpContent.mReply.mString,
 | |
|                            lookUpContent.mReply.mFontRanges,
 | |
|                            charRect.mReply.mWritingMode.IsVertical(),
 | |
|                            charRect.mReply.mRect.TopLeft());
 | |
| 
 | |
|   return NS_OK;
 | |
| }
 | |
| 
 | |
| /*---------------------------------------------------------------------------
 | |
| 
 | |
|   RegisterWindowCommands
 | |
| 
 | |
| ----------------------------------------------------------------------------*/
 | |
| 
 | |
| #define NS_REGISTER_ONE_COMMAND(_cmdClass, _cmdName)            \
 | |
|   {                                                             \
 | |
|     _cmdClass *theCmd = new _cmdClass();                        \
 | |
|     rv = inCommandTable->RegisterCommand(                       \
 | |
|         _cmdName, static_cast<nsIControllerCommand *>(theCmd)); \
 | |
|   }
 | |
| 
 | |
| #define NS_REGISTER_FIRST_COMMAND(_cmdClass, _cmdName) \
 | |
|   {                                                    \
 | |
|     _cmdClass *theCmd = new _cmdClass();               \
 | |
|     rv = inCommandTable->RegisterCommand(              \
 | |
|         _cmdName, static_cast<nsIControllerCommand *>(theCmd));
 | |
| 
 | |
| #define NS_REGISTER_NEXT_COMMAND(_cmdClass, _cmdName) \
 | |
|   rv = inCommandTable->RegisterCommand(               \
 | |
|       _cmdName, static_cast<nsIControllerCommand *>(theCmd));
 | |
| 
 | |
| #define NS_REGISTER_LAST_COMMAND(_cmdClass, _cmdName)         \
 | |
|   rv = inCommandTable->RegisterCommand(                       \
 | |
|       _cmdName, static_cast<nsIControllerCommand *>(theCmd)); \
 | |
|   }
 | |
| 
 | |
| // static
 | |
| nsresult nsWindowCommandRegistration::RegisterWindowCommands(
 | |
|     nsIControllerCommandTable *inCommandTable) {
 | |
|   nsresult rv;
 | |
| 
 | |
|   // XXX rework the macros to use a loop is possible, reducing code size
 | |
| 
 | |
|   // this set of commands is affected by the 'browse with caret' setting
 | |
|   NS_REGISTER_FIRST_COMMAND(nsSelectMoveScrollCommand, sScrollTopString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sScrollBottomString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sScrollPageUpString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sScrollPageDownString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sScrollLineUpString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sScrollLineDownString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sScrollLeftString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sScrollRightString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sMoveTopString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sMoveBottomString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sWordPreviousString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sWordNextString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sBeginLineString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sEndLineString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sMovePageUpString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sMovePageDownString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sLinePreviousString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sLineNextString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectMoveScrollCommand, sCharPreviousString);
 | |
|   NS_REGISTER_LAST_COMMAND(nsSelectMoveScrollCommand, sCharNextString);
 | |
| 
 | |
|   NS_REGISTER_FIRST_COMMAND(nsPhysicalSelectMoveScrollCommand, sMoveLeftString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectMoveScrollCommand, sMoveRightString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectMoveScrollCommand, sMoveUpString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectMoveScrollCommand, sMoveDownString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectMoveScrollCommand, sMoveLeft2String);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectMoveScrollCommand,
 | |
|                            sMoveRight2String);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectMoveScrollCommand, sMoveUp2String);
 | |
|   NS_REGISTER_LAST_COMMAND(nsPhysicalSelectMoveScrollCommand, sMoveDown2String);
 | |
| 
 | |
|   NS_REGISTER_FIRST_COMMAND(nsSelectCommand, sSelectCharPreviousString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectCharNextString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectWordPreviousString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectWordNextString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectBeginLineString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectEndLineString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectLinePreviousString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectLineNextString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectPageUpString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectPageDownString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsSelectCommand, sSelectTopString);
 | |
|   NS_REGISTER_LAST_COMMAND(nsSelectCommand, sSelectBottomString);
 | |
| 
 | |
|   NS_REGISTER_FIRST_COMMAND(nsPhysicalSelectCommand, sSelectLeftString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectCommand, sSelectRightString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectCommand, sSelectUpString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectCommand, sSelectDownString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectCommand, sSelectLeft2String);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectCommand, sSelectRight2String);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsPhysicalSelectCommand, sSelectUp2String);
 | |
|   NS_REGISTER_LAST_COMMAND(nsPhysicalSelectCommand, sSelectDown2String);
 | |
| 
 | |
|   NS_REGISTER_ONE_COMMAND(nsClipboardCommand, "cmd_cut");
 | |
|   NS_REGISTER_ONE_COMMAND(nsClipboardCommand, "cmd_copy");
 | |
|   NS_REGISTER_ONE_COMMAND(nsClipboardCommand, "cmd_copyAndCollapseToEnd");
 | |
|   NS_REGISTER_ONE_COMMAND(nsClipboardCommand, "cmd_paste");
 | |
|   NS_REGISTER_ONE_COMMAND(nsClipboardCopyLinkCommand, "cmd_copyLink");
 | |
|   NS_REGISTER_FIRST_COMMAND(nsClipboardImageCommands, sCopyImageLocationString);
 | |
|   NS_REGISTER_NEXT_COMMAND(nsClipboardImageCommands, sCopyImageContentsString);
 | |
|   NS_REGISTER_LAST_COMMAND(nsClipboardImageCommands, sCopyImageString);
 | |
|   NS_REGISTER_FIRST_COMMAND(nsClipboardSelectAllNoneCommands, sSelectAllString);
 | |
|   NS_REGISTER_LAST_COMMAND(nsClipboardSelectAllNoneCommands, sSelectNoneString);
 | |
| 
 | |
|   NS_REGISTER_ONE_COMMAND(nsClipboardGetContentsCommand, "cmd_getContents");
 | |
| 
 | |
| #if 0  // Remove unless needed again, bug 204777
 | |
|   NS_REGISTER_ONE_COMMAND(nsGoBackCommand, "cmd_browserBack");
 | |
|   NS_REGISTER_ONE_COMMAND(nsGoForwardCommand, "cmd_browserForward");
 | |
| #endif
 | |
| 
 | |
|   NS_REGISTER_ONE_COMMAND(nsLookUpDictionaryCommand, "cmd_lookUpDictionary");
 | |
| 
 | |
|   return rv;
 | |
| }
 | |
| 
 | |
| /* static */ bool nsGlobalWindowCommands::FindScrollCommand(
 | |
|     const char *aCommandName, KeyboardScrollAction *aOutAction) {
 | |
|   // Search for a keyboard scroll action to do for this command in
 | |
|   // browseCommands and physicalBrowseCommands. Each command exists in only one
 | |
|   // of them, so the order we examine browseCommands and physicalBrowseCommands
 | |
|   // doesn't matter.
 | |
| 
 | |
|   for (size_t i = 0; i < ArrayLength(browseCommands); i++) {
 | |
|     const BrowseCommand &cmd = browseCommands[i];
 | |
|     bool forward = !strcmp(aCommandName, cmd.forward);
 | |
|     bool reverse = !strcmp(aCommandName, cmd.reverse);
 | |
|     if (forward || reverse) {
 | |
|       *aOutAction = KeyboardScrollAction(cmd.scrollAction, forward);
 | |
|       return true;
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   for (size_t i = 0; i < ArrayLength(physicalBrowseCommands); i++) {
 | |
|     const PhysicalBrowseCommand &cmd = physicalBrowseCommands[i];
 | |
|     if (!strcmp(aCommandName, cmd.command)) {
 | |
|       int16_t dir = cmd.direction;
 | |
|       bool forward = (dir == nsISelectionController::MOVE_RIGHT ||
 | |
|                       dir == nsISelectionController::MOVE_DOWN);
 | |
| 
 | |
|       *aOutAction = KeyboardScrollAction(cmd.scrollAction, forward);
 | |
|       return true;
 | |
|     }
 | |
|   }
 | |
| 
 | |
|   return false;
 | |
| }
 |