michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: 
michael@0: #include "mozFlushType.h"
michael@0: #include "mozilla/Assertions.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsCRT.h"
michael@0: #include "nsDebug.h"
michael@0: #include "nsEditorCommands.h"
michael@0: #include "nsError.h"
michael@0: #include "nsIClipboard.h"
michael@0: #include "nsICommandParams.h"
michael@0: #include "nsID.h"
michael@0: #include "nsIDOMDocument.h"
michael@0: #include "nsIDocument.h"
michael@0: #include "nsIEditor.h"
michael@0: #include "nsIEditorMailSupport.h"
michael@0: #include "nsIPlaintextEditor.h"
michael@0: #include "nsISelection.h"
michael@0: #include "nsISelectionController.h"
michael@0: #include "nsITransferable.h"
michael@0: #include "nsString.h"
michael@0: #include "nsAString.h"
michael@0: 
michael@0: class nsISupports;
michael@0: 
michael@0: 
michael@0: #define STATE_ENABLED  "state_enabled"
michael@0: #define STATE_DATA "state_data"
michael@0: 
michael@0: 
michael@0: nsBaseEditorCommand::nsBaseEditorCommand()
michael@0: {
michael@0: }
michael@0: 
michael@0: NS_IMPL_ISUPPORTS(nsBaseEditorCommand, nsIControllerCommand)
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsUndoCommand::IsCommandEnabled(const char * aCommandName, 
michael@0:                                 nsISupports *aCommandRefCon, 
michael@0:                                 bool *outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:   {
michael@0:     bool isEnabled, isEditable = false;
michael@0:     nsresult rv = editor->GetIsSelectionEditable(&isEditable);
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0:     if (isEditable)
michael@0:       return editor->CanUndo(&isEnabled, outCmdEnabled);
michael@0:   }
michael@0: 
michael@0:   *outCmdEnabled = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsUndoCommand::DoCommand(const char *aCommandName, nsISupports *aCommandRefCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:     return editor->Undo(1);
michael@0:     
michael@0:   return NS_ERROR_FAILURE;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsUndoCommand::DoCommandParams(const char *aCommandName,
michael@0:                                nsICommandParams *aParams,
michael@0:                                nsISupports *aCommandRefCon)
michael@0: {
michael@0:   return DoCommand(aCommandName, aCommandRefCon);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsUndoCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                      nsICommandParams *aParams,
michael@0:                                      nsISupports *aCommandRefCon)
michael@0: {
michael@0:   bool canUndo;
michael@0:   IsCommandEnabled(aCommandName, aCommandRefCon, &canUndo);
michael@0:   return aParams->SetBooleanValue(STATE_ENABLED,canUndo);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsRedoCommand::IsCommandEnabled(const char * aCommandName,
michael@0:                                 nsISupports *aCommandRefCon,
michael@0:                                 bool *outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:   {
michael@0:     bool isEnabled, isEditable = false;
michael@0:     nsresult rv = editor->GetIsSelectionEditable(&isEditable);
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0:     if (isEditable)
michael@0:       return editor->CanRedo(&isEnabled, outCmdEnabled);
michael@0:   }
michael@0: 
michael@0:   *outCmdEnabled = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsRedoCommand::DoCommand(const char *aCommandName, nsISupports *aCommandRefCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:     return editor->Redo(1);
michael@0:     
michael@0:   return NS_ERROR_FAILURE;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsRedoCommand::DoCommandParams(const char *aCommandName,
michael@0:                                nsICommandParams *aParams,
michael@0:                                nsISupports *aCommandRefCon)
michael@0: {
michael@0:   return DoCommand(aCommandName, aCommandRefCon);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsRedoCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                      nsICommandParams *aParams,
michael@0:                                      nsISupports *aCommandRefCon)
michael@0: {
michael@0:   bool canUndo;
michael@0:   IsCommandEnabled(aCommandName, aCommandRefCon, &canUndo);
michael@0:   return aParams->SetBooleanValue(STATE_ENABLED,canUndo);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsClearUndoCommand::IsCommandEnabled(const char * aCommandName,
michael@0:                                      nsISupports *refCon, bool *outCmdEnabled)
michael@0: { 
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
michael@0:   if (editor)
michael@0:     return editor->GetIsSelectionEditable(outCmdEnabled);
michael@0: 
michael@0:   *outCmdEnabled = false;
michael@0:   return NS_OK;
michael@0: }
michael@0:   
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsClearUndoCommand::DoCommand(const char *aCommandName, nsISupports *refCon)
michael@0: { 
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
michael@0:   NS_ENSURE_TRUE(editor, NS_ERROR_NOT_IMPLEMENTED);
michael@0:   
michael@0:   editor->EnableUndo(false);  // Turning off undo clears undo/redo stacks.
michael@0:   editor->EnableUndo(true);   // This re-enables undo/redo.
michael@0:   
michael@0:   return NS_OK;
michael@0: }
michael@0:                                   
michael@0: NS_IMETHODIMP                       
michael@0: nsClearUndoCommand::DoCommandParams(const char *aCommandName,
michael@0:                                     nsICommandParams *aParams,
michael@0:                                     nsISupports *refCon)
michael@0: {
michael@0:   return DoCommand(aCommandName, refCon);
michael@0: }
michael@0:                                                   
michael@0: NS_IMETHODIMP                                     
michael@0: nsClearUndoCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                           nsICommandParams *aParams,
michael@0:                                           nsISupports *refCon)
michael@0: { 
michael@0:   NS_ENSURE_ARG_POINTER(aParams);
michael@0:   
michael@0:   bool enabled;
michael@0:   nsresult rv = IsCommandEnabled(aCommandName, refCon, &enabled);
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0:    
michael@0:   return aParams->SetBooleanValue(STATE_ENABLED, enabled);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsCutCommand::IsCommandEnabled(const char * aCommandName,
michael@0:                                nsISupports *aCommandRefCon,
michael@0:                                bool *outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:   {
michael@0:     bool isEditable = false;
michael@0:     nsresult rv = editor->GetIsSelectionEditable(&isEditable);
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0:     if (isEditable)
michael@0:       return editor->CanCut(outCmdEnabled);
michael@0:   }
michael@0: 
michael@0:   *outCmdEnabled = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsCutCommand::DoCommand(const char *aCommandName, nsISupports *aCommandRefCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:     return editor->Cut();
michael@0:     
michael@0:   return NS_ERROR_FAILURE;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsCutCommand::DoCommandParams(const char *aCommandName,
michael@0:                               nsICommandParams *aParams,
michael@0:                               nsISupports *aCommandRefCon)
michael@0: {
michael@0:   return DoCommand(aCommandName, aCommandRefCon);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsCutCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                     nsICommandParams *aParams,
michael@0:                                     nsISupports *aCommandRefCon)
michael@0: {
michael@0:   bool canUndo;
michael@0:   IsCommandEnabled(aCommandName, aCommandRefCon, &canUndo);
michael@0:   return aParams->SetBooleanValue(STATE_ENABLED,canUndo);
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsCutOrDeleteCommand::IsCommandEnabled(const char * aCommandName,
michael@0:                                        nsISupports *aCommandRefCon,
michael@0:                                        bool *outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:     return editor->GetIsSelectionEditable(outCmdEnabled);
michael@0: 
michael@0:   *outCmdEnabled = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsCutOrDeleteCommand::DoCommand(const char *aCommandName,
michael@0:                                 nsISupports *aCommandRefCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:   {
michael@0:     nsCOMPtr<nsISelection> selection;
michael@0:     nsresult rv = editor->GetSelection(getter_AddRefs(selection));
michael@0:     if (NS_SUCCEEDED(rv) && selection && selection->Collapsed()) {
michael@0:       return editor->DeleteSelection(nsIEditor::eNext, nsIEditor::eStrip);
michael@0:     }
michael@0:     return editor->Cut();
michael@0:   }
michael@0:     
michael@0:   return NS_ERROR_FAILURE;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsCutOrDeleteCommand::DoCommandParams(const char *aCommandName,
michael@0:                                       nsICommandParams *aParams,
michael@0:                                       nsISupports *aCommandRefCon)
michael@0: {
michael@0:   return DoCommand(aCommandName, aCommandRefCon);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsCutOrDeleteCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                             nsICommandParams *aParams,
michael@0:                                             nsISupports *aCommandRefCon)
michael@0: {
michael@0:   bool canUndo;
michael@0:   IsCommandEnabled(aCommandName, aCommandRefCon, &canUndo);
michael@0:   return aParams->SetBooleanValue(STATE_ENABLED,canUndo);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsCopyCommand::IsCommandEnabled(const char * aCommandName,
michael@0:                                 nsISupports *aCommandRefCon,
michael@0:                                 bool *outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:     return editor->CanCopy(outCmdEnabled);
michael@0: 
michael@0:   *outCmdEnabled = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsCopyCommand::DoCommand(const char *aCommandName, nsISupports *aCommandRefCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:     return editor->Copy();
michael@0:     
michael@0:   return NS_ERROR_FAILURE;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsCopyCommand::DoCommandParams(const char *aCommandName,
michael@0:                                nsICommandParams *aParams,
michael@0:                                nsISupports *aCommandRefCon)
michael@0: {
michael@0:   return DoCommand(aCommandName, aCommandRefCon);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsCopyCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                      nsICommandParams *aParams,
michael@0:                                      nsISupports *aCommandRefCon)
michael@0: {
michael@0:   bool canUndo;
michael@0:   IsCommandEnabled(aCommandName, aCommandRefCon, &canUndo);
michael@0:   return aParams->SetBooleanValue(STATE_ENABLED,canUndo);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsCopyOrDeleteCommand::IsCommandEnabled(const char * aCommandName,
michael@0:                                         nsISupports *aCommandRefCon,
michael@0:                                         bool *outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:     return editor->GetIsSelectionEditable(outCmdEnabled);
michael@0: 
michael@0:   *outCmdEnabled = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsCopyOrDeleteCommand::DoCommand(const char *aCommandName,
michael@0:                                  nsISupports *aCommandRefCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:   {
michael@0:     nsCOMPtr<nsISelection> selection;
michael@0:     nsresult rv = editor->GetSelection(getter_AddRefs(selection));
michael@0:     if (NS_SUCCEEDED(rv) && selection && selection->Collapsed()) {
michael@0:       return editor->DeleteSelection(nsIEditor::eNextWord, nsIEditor::eStrip);
michael@0:     }
michael@0:     return editor->Copy();
michael@0:   }
michael@0:     
michael@0:   return NS_ERROR_FAILURE;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsCopyOrDeleteCommand::DoCommandParams(const char *aCommandName,
michael@0:                                        nsICommandParams *aParams,
michael@0:                                        nsISupports *aCommandRefCon)
michael@0: {
michael@0:   return DoCommand(aCommandName, aCommandRefCon);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsCopyOrDeleteCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                              nsICommandParams *aParams,
michael@0:                                              nsISupports *aCommandRefCon)
michael@0: {
michael@0:   bool canUndo;
michael@0:   IsCommandEnabled(aCommandName, aCommandRefCon, &canUndo);
michael@0:   return aParams->SetBooleanValue(STATE_ENABLED,canUndo);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsPasteCommand::IsCommandEnabled(const char *aCommandName,
michael@0:                                  nsISupports *aCommandRefCon,
michael@0:                                  bool *outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:   {
michael@0:     bool isEditable = false;
michael@0:     nsresult rv = editor->GetIsSelectionEditable(&isEditable);
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0:     if (isEditable)
michael@0:       return editor->CanPaste(nsIClipboard::kGlobalClipboard, outCmdEnabled);
michael@0:   }
michael@0: 
michael@0:   *outCmdEnabled = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsPasteCommand::DoCommand(const char *aCommandName, nsISupports *aCommandRefCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   NS_ENSURE_TRUE(editor, NS_ERROR_FAILURE);
michael@0:   
michael@0:   return editor->Paste(nsIClipboard::kGlobalClipboard);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsPasteCommand::DoCommandParams(const char *aCommandName,
michael@0:                                 nsICommandParams *aParams,
michael@0:                                 nsISupports *aCommandRefCon)
michael@0: {
michael@0:   return DoCommand(aCommandName, aCommandRefCon);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsPasteCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                       nsICommandParams *aParams,
michael@0:                                       nsISupports *aCommandRefCon)
michael@0: {
michael@0:   bool canUndo;
michael@0:   IsCommandEnabled(aCommandName, aCommandRefCon, &canUndo);
michael@0:   return aParams->SetBooleanValue(STATE_ENABLED,canUndo);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsPasteTransferableCommand::IsCommandEnabled(const char *aCommandName,
michael@0:                                              nsISupports *aCommandRefCon,
michael@0:                                              bool *outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:   {
michael@0:     bool isEditable = false;
michael@0:     nsresult rv = editor->GetIsSelectionEditable(&isEditable);
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0:     if (isEditable)
michael@0:       return editor->CanPasteTransferable(nullptr, outCmdEnabled);
michael@0:   }
michael@0: 
michael@0:   *outCmdEnabled = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsPasteTransferableCommand::DoCommand(const char *aCommandName, nsISupports *aCommandRefCon)
michael@0: {
michael@0:   return NS_ERROR_FAILURE;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsPasteTransferableCommand::DoCommandParams(const char *aCommandName,
michael@0:                                             nsICommandParams *aParams,
michael@0:                                             nsISupports *aCommandRefCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   NS_ENSURE_TRUE(editor, NS_ERROR_FAILURE);
michael@0:   
michael@0:   nsCOMPtr<nsISupports> supports;
michael@0:   aParams->GetISupportsValue("transferable", getter_AddRefs(supports));
michael@0:   NS_ENSURE_TRUE(supports, NS_ERROR_FAILURE);
michael@0: 
michael@0:   nsCOMPtr<nsITransferable> trans = do_QueryInterface(supports);
michael@0:   NS_ENSURE_TRUE(trans, NS_ERROR_FAILURE);
michael@0: 
michael@0:   return editor->PasteTransferable(trans);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsPasteTransferableCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                                   nsICommandParams *aParams,
michael@0:                                                   nsISupports *aCommandRefCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   NS_ENSURE_TRUE(editor, NS_ERROR_FAILURE);
michael@0: 
michael@0:   nsCOMPtr<nsITransferable> trans;
michael@0: 
michael@0:   nsCOMPtr<nsISupports> supports;
michael@0:   aParams->GetISupportsValue("transferable", getter_AddRefs(supports));
michael@0:   if (supports) {
michael@0:     trans = do_QueryInterface(supports);
michael@0:     NS_ENSURE_TRUE(trans, NS_ERROR_FAILURE);
michael@0:   }
michael@0: 
michael@0:   bool canPaste;
michael@0:   nsresult rv = editor->CanPasteTransferable(trans, &canPaste);
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   return aParams->SetBooleanValue(STATE_ENABLED, canPaste);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSwitchTextDirectionCommand::IsCommandEnabled(const char *aCommandName,
michael@0:                                  nsISupports *aCommandRefCon,
michael@0:                                  bool *outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:     return editor->GetIsSelectionEditable(outCmdEnabled);
michael@0: 
michael@0:   *outCmdEnabled = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSwitchTextDirectionCommand::DoCommand(const char *aCommandName, nsISupports *aCommandRefCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   NS_ENSURE_TRUE(editor, NS_ERROR_FAILURE);
michael@0: 
michael@0:   return editor->SwitchTextDirection();
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsSwitchTextDirectionCommand::DoCommandParams(const char *aCommandName,
michael@0:                                 nsICommandParams *aParams,
michael@0:                                 nsISupports *aCommandRefCon)
michael@0: {
michael@0:   return DoCommand(aCommandName, aCommandRefCon);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsSwitchTextDirectionCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                       nsICommandParams *aParams,
michael@0:                                       nsISupports *aCommandRefCon)
michael@0: {
michael@0:   bool canSwitchTextDirection = true;
michael@0:   IsCommandEnabled(aCommandName, aCommandRefCon, &canSwitchTextDirection);
michael@0:   return aParams->SetBooleanValue(STATE_ENABLED, canSwitchTextDirection);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsDeleteCommand::IsCommandEnabled(const char* aCommandName,
michael@0:                                   nsISupports* aCommandRefCon,
michael@0:                                   bool* outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   *outCmdEnabled = false;
michael@0: 
michael@0:   NS_ENSURE_TRUE(editor, NS_OK);
michael@0: 
michael@0:   // We can generally delete whenever the selection is editable.  However,
michael@0:   // cmd_delete doesn't make sense if the selection is collapsed because it's
michael@0:   // directionless, which is the same condition under which we can't cut.
michael@0:   nsresult rv = editor->GetIsSelectionEditable(outCmdEnabled);
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   if (!nsCRT::strcmp("cmd_delete", aCommandName) && *outCmdEnabled) {
michael@0:     rv = editor->CanCut(outCmdEnabled);
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0:   }
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsDeleteCommand::DoCommand(const char* aCommandName,
michael@0:                            nsISupports* aCommandRefCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   NS_ENSURE_TRUE(editor, NS_ERROR_FAILURE);
michael@0: 
michael@0:   nsIEditor::EDirection deleteDir = nsIEditor::eNone;
michael@0: 
michael@0:   if (!nsCRT::strcmp("cmd_delete", aCommandName)) {
michael@0:     // Really this should probably be eNone, but it only makes a difference if
michael@0:     // the selection is collapsed, and then this command is disabled.  So let's
michael@0:     // keep it as it always was to avoid breaking things.
michael@0:     deleteDir = nsIEditor::ePrevious;
michael@0:   } else if (!nsCRT::strcmp("cmd_deleteCharForward", aCommandName)) {
michael@0:     deleteDir = nsIEditor::eNext;
michael@0:   } else if (!nsCRT::strcmp("cmd_deleteCharBackward", aCommandName)) {
michael@0:     deleteDir = nsIEditor::ePrevious;
michael@0:   } else if (!nsCRT::strcmp("cmd_deleteWordBackward", aCommandName)) {
michael@0:     deleteDir = nsIEditor::ePreviousWord;
michael@0:   } else if (!nsCRT::strcmp("cmd_deleteWordForward", aCommandName)) {
michael@0:     deleteDir = nsIEditor::eNextWord;
michael@0:   } else if (!nsCRT::strcmp("cmd_deleteToBeginningOfLine", aCommandName)) {
michael@0:     deleteDir = nsIEditor::eToBeginningOfLine;
michael@0:   } else if (!nsCRT::strcmp("cmd_deleteToEndOfLine", aCommandName)) {
michael@0:     deleteDir = nsIEditor::eToEndOfLine;
michael@0:   } else {
michael@0:     MOZ_CRASH("Unrecognized nsDeleteCommand");
michael@0:   }
michael@0: 
michael@0:   return editor->DeleteSelection(deleteDir, nsIEditor::eStrip);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsDeleteCommand::DoCommandParams(const char *aCommandName,
michael@0:                                  nsICommandParams *aParams,
michael@0:                                  nsISupports *aCommandRefCon)
michael@0: {
michael@0:   return DoCommand(aCommandName, aCommandRefCon);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsDeleteCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                        nsICommandParams *aParams,
michael@0:                                        nsISupports *aCommandRefCon)
michael@0: {
michael@0:   bool canUndo;
michael@0:   IsCommandEnabled(aCommandName, aCommandRefCon, &canUndo);
michael@0:   return aParams->SetBooleanValue(STATE_ENABLED,canUndo);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSelectAllCommand::IsCommandEnabled(const char * aCommandName,
michael@0:                                      nsISupports *aCommandRefCon,
michael@0:                                      bool *outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0: 
michael@0:   nsresult rv = NS_OK;
michael@0:   // You can always select all, unless the selection is editable,
michael@0:   // and the editable region is empty!
michael@0:   *outCmdEnabled = true;
michael@0:   bool docIsEmpty;
michael@0: 
michael@0:   // you can select all if there is an editor which is non-empty
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor) {
michael@0:     rv = editor->GetDocumentIsEmpty(&docIsEmpty);
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0:     *outCmdEnabled = !docIsEmpty;
michael@0:   }
michael@0: 
michael@0:   return rv;
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSelectAllCommand::DoCommand(const char *aCommandName,
michael@0:                               nsISupports *aCommandRefCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:     return editor->SelectAll();
michael@0:     
michael@0:   return NS_ERROR_FAILURE;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsSelectAllCommand::DoCommandParams(const char *aCommandName,
michael@0:                                     nsICommandParams *aParams,
michael@0:                                     nsISupports *aCommandRefCon)
michael@0: {
michael@0:   return DoCommand(aCommandName, aCommandRefCon);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsSelectAllCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                           nsICommandParams *aParams,
michael@0:                                           nsISupports *aCommandRefCon)
michael@0: {
michael@0:   bool canUndo;
michael@0:   IsCommandEnabled(aCommandName, aCommandRefCon, &canUndo);
michael@0:   return aParams->SetBooleanValue(STATE_ENABLED,canUndo);
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSelectionMoveCommands::IsCommandEnabled(const char * aCommandName,
michael@0:                                           nsISupports *aCommandRefCon,
michael@0:                                           bool *outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   if (editor)
michael@0:     return editor->GetIsSelectionEditable(outCmdEnabled);
michael@0: 
michael@0:   *outCmdEnabled = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsSelectionMoveCommands::DoCommand(const char *aCommandName,
michael@0:                                    nsISupports *aCommandRefCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(aCommandRefCon);
michael@0:   NS_ENSURE_TRUE(editor, NS_ERROR_FAILURE);
michael@0: 
michael@0:   nsCOMPtr<nsIDOMDocument> domDoc;
michael@0:   editor->GetDocument(getter_AddRefs(domDoc));
michael@0:   nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc);
michael@0:   if (doc) {
michael@0:     // Most of the commands below (possibly all of them) need layout to
michael@0:     // be up to date.
michael@0:     doc->FlushPendingNotifications(Flush_Layout);
michael@0:   }
michael@0: 
michael@0:   nsCOMPtr<nsISelectionController> selCont;
michael@0:   nsresult rv = editor->GetSelectionController(getter_AddRefs(selCont)); 
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0:   NS_ENSURE_TRUE(selCont, NS_ERROR_FAILURE);
michael@0: 
michael@0:   // complete scroll commands
michael@0:   if (!nsCRT::strcmp(aCommandName,"cmd_scrollTop"))
michael@0:     return selCont->CompleteScroll(false);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_scrollBottom"))
michael@0:     return selCont->CompleteScroll(true);
michael@0: 
michael@0:   // complete move commands
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_moveTop"))
michael@0:     return selCont->CompleteMove(false, false);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_moveBottom"))
michael@0:     return selCont->CompleteMove(true, false);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_selectTop"))
michael@0:     return selCont->CompleteMove(false, true);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_selectBottom"))
michael@0:     return selCont->CompleteMove(true, true);
michael@0: 
michael@0:   // line move commands
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_lineNext"))
michael@0:     return selCont->LineMove(true, false);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_linePrevious"))
michael@0:     return selCont->LineMove(false, false);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_selectLineNext"))
michael@0:     return selCont->LineMove(true, true);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_selectLinePrevious"))
michael@0:     return selCont->LineMove(false, true);
michael@0: 
michael@0:   // character move commands
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_charPrevious"))
michael@0:     return selCont->CharacterMove(false, false);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_charNext"))
michael@0:     return selCont->CharacterMove(true, false);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_selectCharPrevious"))
michael@0:     return selCont->CharacterMove(false, true);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_selectCharNext"))
michael@0:     return selCont->CharacterMove(true, true);
michael@0: 
michael@0:   // intra line move commands
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_beginLine"))
michael@0:     return selCont->IntraLineMove(false, false);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_endLine"))
michael@0:     return selCont->IntraLineMove(true, false);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_selectBeginLine"))
michael@0:     return selCont->IntraLineMove(false, true);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_selectEndLine"))
michael@0:     return selCont->IntraLineMove(true, true);
michael@0:   
michael@0:   // word move commands
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_wordPrevious"))
michael@0:     return selCont->WordMove(false, false);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_wordNext"))
michael@0:     return selCont->WordMove(true, false);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_selectWordPrevious"))
michael@0:     return selCont->WordMove(false, true);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_selectWordNext"))
michael@0:     return selCont->WordMove(true, true);
michael@0:   
michael@0:   // scroll page commands
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_scrollPageUp"))
michael@0:     return selCont->ScrollPage(false);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_scrollPageDown"))
michael@0:     return selCont->ScrollPage(true);
michael@0:   
michael@0:   // scroll line commands
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_scrollLineUp"))
michael@0:     return selCont->ScrollLine(false);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_scrollLineDown"))
michael@0:     return selCont->ScrollLine(true);
michael@0:   
michael@0:   // page move commands
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_movePageUp"))
michael@0:     return selCont->PageMove(false, false);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_movePageDown"))
michael@0:     return selCont->PageMove(true, false);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_selectPageUp"))
michael@0:     return selCont->PageMove(false, true);
michael@0:   else if (!nsCRT::strcmp(aCommandName,"cmd_selectPageDown"))
michael@0:     return selCont->PageMove(true, true);
michael@0:     
michael@0:   return NS_ERROR_FAILURE;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsSelectionMoveCommands::DoCommandParams(const char *aCommandName,
michael@0:                                          nsICommandParams *aParams,
michael@0:                                          nsISupports *aCommandRefCon)
michael@0: {
michael@0:   return DoCommand(aCommandName, aCommandRefCon);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP 
michael@0: nsSelectionMoveCommands::GetCommandStateParams(const char *aCommandName,
michael@0:                                                nsICommandParams *aParams,
michael@0:                                                nsISupports *aCommandRefCon)
michael@0: {
michael@0:   bool canUndo;
michael@0:   IsCommandEnabled(aCommandName, aCommandRefCon, &canUndo);
michael@0:   return aParams->SetBooleanValue(STATE_ENABLED,canUndo);
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsInsertPlaintextCommand::IsCommandEnabled(const char * aCommandName,
michael@0:                                            nsISupports *refCon, 
michael@0:                                            bool *outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
michael@0:   if (editor)
michael@0:     return editor->GetIsSelectionEditable(outCmdEnabled);
michael@0: 
michael@0:   *outCmdEnabled = false;
michael@0:   return NS_ERROR_NOT_IMPLEMENTED;
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsInsertPlaintextCommand::DoCommand(const char *aCommandName,
michael@0:                                     nsISupports *refCon)
michael@0: {
michael@0:   return NS_ERROR_NOT_IMPLEMENTED;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsInsertPlaintextCommand::DoCommandParams(const char *aCommandName,
michael@0:                                           nsICommandParams *aParams,
michael@0:                                           nsISupports *refCon)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aParams);
michael@0: 
michael@0:   nsCOMPtr<nsIPlaintextEditor> editor = do_QueryInterface(refCon);
michael@0:   NS_ENSURE_TRUE(editor, NS_ERROR_NOT_IMPLEMENTED);
michael@0: 
michael@0:   // Get text to insert from command params
michael@0:   nsAutoString text;
michael@0:   nsresult rv = aParams->GetStringValue(STATE_DATA, text);
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   if (!text.IsEmpty())
michael@0:     return editor->InsertText(text);
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsInsertPlaintextCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                                 nsICommandParams *aParams,
michael@0:                                                 nsISupports *refCon)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aParams);
michael@0: 
michael@0:   bool outCmdEnabled = false;
michael@0:   IsCommandEnabled(aCommandName, refCon, &outCmdEnabled);
michael@0:   return aParams->SetBooleanValue(STATE_ENABLED, outCmdEnabled);
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsPasteQuotationCommand::IsCommandEnabled(const char * aCommandName,
michael@0:                                           nsISupports *refCon,
michael@0:                                           bool *outCmdEnabled)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(outCmdEnabled);
michael@0: 
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
michael@0:   nsCOMPtr<nsIEditorMailSupport>  mailEditor = do_QueryInterface(refCon);
michael@0:   if (editor && mailEditor) {
michael@0:     uint32_t flags;
michael@0:     editor->GetFlags(&flags);
michael@0:     if (!(flags & nsIPlaintextEditor::eEditorSingleLineMask))
michael@0:       return editor->CanPaste(nsIClipboard::kGlobalClipboard, outCmdEnabled);
michael@0:   }
michael@0: 
michael@0:   *outCmdEnabled = false;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsPasteQuotationCommand::DoCommand(const char *aCommandName,
michael@0:                                    nsISupports *refCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditorMailSupport>  mailEditor = do_QueryInterface(refCon);
michael@0:   if (mailEditor)
michael@0:     return mailEditor->PasteAsQuotation(nsIClipboard::kGlobalClipboard);
michael@0: 
michael@0:   return NS_ERROR_NOT_IMPLEMENTED;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsPasteQuotationCommand::DoCommandParams(const char *aCommandName,
michael@0:                                          nsICommandParams *aParams,
michael@0:                                          nsISupports *refCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditorMailSupport>  mailEditor = do_QueryInterface(refCon);
michael@0:   if (mailEditor)
michael@0:     return mailEditor->PasteAsQuotation(nsIClipboard::kGlobalClipboard);
michael@0: 
michael@0:   return NS_ERROR_NOT_IMPLEMENTED;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsPasteQuotationCommand::GetCommandStateParams(const char *aCommandName,
michael@0:                                                nsICommandParams *aParams,
michael@0:                                                nsISupports *refCon)
michael@0: {
michael@0:   nsCOMPtr<nsIEditor> editor = do_QueryInterface(refCon);
michael@0:   if (editor)
michael@0:   {
michael@0:     bool enabled = false;
michael@0:     editor->CanPaste(nsIClipboard::kGlobalClipboard, &enabled);
michael@0:     aParams->SetBooleanValue(STATE_ENABLED, enabled);
michael@0:   }
michael@0:  
michael@0:   return NS_OK;
michael@0: }
michael@0: