pjs/editor/libeditor/base/nsEditorCommands.cpp

369 строки
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C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
*/
#include "nsCRT.h"
#include "nsIEditor.h"
#include "nsIEditorMailSupport.h"
#include "nsISelectionController.h"
#include "nsIPresShell.h"
#include "nsIClipboard.h"
#include "nsEditorCommands.h"
nsBaseCommand::nsBaseCommand()
{
NS_INIT_REFCNT();
}
NS_IMPL_ISUPPORTS(nsBaseCommand, NS_GET_IID(nsIControllerCommand));
#ifdef XP_MAC
#pragma mark -
#endif
NS_IMETHODIMP
nsUndoCommand::IsCommandEnabled(const PRUnichar *aCommand, nsISupports * refCon, PRBool *outCmdEnabled)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
*outCmdEnabled = PR_FALSE;
if (aEditor)
{
PRBool isEnabled;
return aEditor->CanUndo(isEnabled, *outCmdEnabled);
}
return NS_OK;
}
NS_IMETHODIMP
nsUndoCommand::DoCommand(const PRUnichar *aCommand, nsISupports * refCon)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
if (aEditor)
return aEditor->Undo(1);
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsRedoCommand::IsCommandEnabled(const PRUnichar *aCommand, nsISupports * refCon, PRBool *outCmdEnabled)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
*outCmdEnabled = PR_FALSE;
if (aEditor)
{
PRBool isEnabled;
return aEditor->CanRedo(isEnabled, *outCmdEnabled);
}
return NS_OK;
}
NS_IMETHODIMP
nsRedoCommand::DoCommand(const PRUnichar *aCommand, nsISupports * refCon)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
if (aEditor)
return aEditor->Redo(1);
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsCutCommand::IsCommandEnabled(const PRUnichar *aCommand, nsISupports * refCon, PRBool *outCmdEnabled)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
*outCmdEnabled = PR_FALSE;
if (aEditor)
return aEditor->CanCut(*outCmdEnabled);
return NS_OK;
}
NS_IMETHODIMP
nsCutCommand::DoCommand(const PRUnichar *aCommand, nsISupports * refCon)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
if (aEditor)
return aEditor->Cut();
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsCopyCommand::IsCommandEnabled(const PRUnichar *aCommand, nsISupports * refCon, PRBool *outCmdEnabled)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
*outCmdEnabled = PR_FALSE;
if (aEditor)
return aEditor->CanCopy(*outCmdEnabled);
return NS_OK;
}
NS_IMETHODIMP
nsCopyCommand::DoCommand(const PRUnichar *aCommand, nsISupports * refCon)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
if (aEditor)
return aEditor->Copy();
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsPasteCommand::IsCommandEnabled(const PRUnichar *aCommand, nsISupports * refCon, PRBool *outCmdEnabled)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
*outCmdEnabled = PR_FALSE;
if (aEditor)
return aEditor->CanPaste(nsIClipboard::kGlobalClipboard, *outCmdEnabled);
return NS_OK;
}
NS_IMETHODIMP
nsPasteCommand::DoCommand(const PRUnichar *aCommand, nsISupports * refCon)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
if (!aEditor)
return NS_ERROR_FAILURE;
nsresult rv = NS_OK;
nsAutoString cmdString(aCommand);
if (cmdString.EqualsWithConversion("cmd_paste"))
rv = aEditor->Paste(nsIClipboard::kGlobalClipboard);
else if (cmdString.EqualsWithConversion("cmd_pasteQuote"))
{
nsCOMPtr<nsIEditorMailSupport> mailEditor = do_QueryInterface(aEditor, &rv);
if (mailEditor)
rv = mailEditor->PasteAsQuotation(nsIClipboard::kGlobalClipboard);
}
return rv;
}
NS_IMETHODIMP
nsDeleteCommand::IsCommandEnabled(const PRUnichar *aCommand, nsISupports * refCon, PRBool *outCmdEnabled)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
*outCmdEnabled = PR_FALSE;
// we can delete when we can cut
if (!aEditor)
return NS_OK;
nsresult rv = NS_OK;
nsAutoString cmdString(aCommand);
if (cmdString.EqualsWithConversion("cmd_delete"))
rv = aEditor->CanCut(*outCmdEnabled);
else if (cmdString.EqualsWithConversion("cmd_deleteCharBackward"))
*outCmdEnabled = PR_TRUE;
else if (cmdString.EqualsWithConversion("cmd_deleteCharForward"))
*outCmdEnabled = PR_TRUE;
else if (cmdString.EqualsWithConversion("cmd_deleteWordBackward"))
*outCmdEnabled = PR_TRUE;
else if (cmdString.EqualsWithConversion("cmd_deleteWordForward"))
*outCmdEnabled = PR_TRUE;
else if (cmdString.EqualsWithConversion("cmd_deleteToBeginningOfLine"))
*outCmdEnabled = PR_TRUE;
else if (cmdString.EqualsWithConversion("cmd_deleteToEndOfLine"))
*outCmdEnabled = PR_TRUE;
return rv;
}
NS_IMETHODIMP
nsDeleteCommand::DoCommand(const PRUnichar *aCommand, nsISupports * refCon)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
if (!aEditor)
return NS_ERROR_FAILURE;
nsAutoString cmdString(aCommand);
nsIEditor::EDirection deleteDir = nsIEditor::eNone;
if (cmdString.EqualsWithConversion("cmd_delete"))
deleteDir = nsIEditor::ePrevious;
else if (cmdString.EqualsWithConversion("cmd_deleteCharBackward"))
deleteDir = nsIEditor::ePrevious;
else if (cmdString.EqualsWithConversion("cmd_deleteCharForward"))
deleteDir = nsIEditor::eNext;
else if (cmdString.EqualsWithConversion("cmd_deleteWordBackward"))
deleteDir = nsIEditor::ePreviousWord;
else if (cmdString.EqualsWithConversion("cmd_deleteWordForward"))
deleteDir = nsIEditor::eNextWord;
else if (cmdString.EqualsWithConversion("cmd_deleteToBeginningOfLine"))
deleteDir = nsIEditor::eToBeginningOfLine;
else if (cmdString.EqualsWithConversion("cmd_deleteToEndOfLine"))
deleteDir = nsIEditor::eToEndOfLine;
return aEditor->DeleteSelection(deleteDir);
}
NS_IMETHODIMP
nsSelectAllCommand::IsCommandEnabled(const PRUnichar *aCommand, nsISupports * refCon, PRBool *outCmdEnabled)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
*outCmdEnabled = PR_FALSE;
if (aEditor)
*outCmdEnabled = PR_TRUE; // you can always select all
return NS_OK;
}
NS_IMETHODIMP
nsSelectAllCommand::DoCommand(const PRUnichar *aCommand, nsISupports * refCon)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
if (aEditor)
return aEditor->SelectAll();
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsSelectionMoveCommands::IsCommandEnabled(const PRUnichar *aCommand, nsISupports * refCon, PRBool *outCmdEnabled)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
*outCmdEnabled = PR_FALSE;
if (!aEditor)
return NS_ERROR_FAILURE;
*outCmdEnabled = PR_TRUE;
return NS_OK;
}
NS_IMETHODIMP
nsSelectionMoveCommands::DoCommand(const PRUnichar *aCommand, nsISupports * refCon)
{
nsCOMPtr<nsIEditor> aEditor = do_QueryInterface(refCon);
if (!aEditor)
return NS_ERROR_FAILURE;
nsresult rv;
nsCOMPtr<nsISelectionController> selCont;
rv = aEditor->GetSelectionController(getter_AddRefs(selCont));
if (NS_FAILED(rv) || !selCont)
return rv?rv:NS_ERROR_FAILURE;
nsAutoString cmdString(aCommand);
// complete scroll commands
if (cmdString.EqualsWithConversion("cmd_scrollTop"))
return selCont->CompleteScroll(PR_FALSE);
else if (cmdString.EqualsWithConversion("cmd_scrollBottom"))
return selCont->CompleteScroll(PR_TRUE);
// complete move commands
else if (cmdString.EqualsWithConversion("cmd_moveTop"))
return selCont->CompleteMove(PR_FALSE, PR_FALSE);
else if (cmdString.EqualsWithConversion("cmd_moveBottom"))
return selCont->CompleteMove(PR_TRUE, PR_FALSE);
else if (cmdString.EqualsWithConversion("cmd_selectTop"))
return selCont->CompleteMove(PR_FALSE, PR_TRUE);
else if (cmdString.EqualsWithConversion("cmd_selectBottom"))
return selCont->CompleteMove(PR_TRUE, PR_TRUE);
// line move commands
else if (cmdString.EqualsWithConversion("cmd_lineNext"))
return selCont->LineMove(PR_TRUE, PR_FALSE);
else if (cmdString.EqualsWithConversion("cmd_linePrevious"))
return selCont->LineMove(PR_FALSE, PR_FALSE);
else if (cmdString.EqualsWithConversion("cmd_selectLineNext"))
return selCont->LineMove(PR_TRUE, PR_TRUE);
else if (cmdString.EqualsWithConversion("cmd_selectLinePrevious"))
return selCont->LineMove(PR_FALSE, PR_TRUE);
// character move commands
else if (cmdString.EqualsWithConversion("cmd_charPrevious"))
return selCont->CharacterMove(PR_FALSE, PR_FALSE);
else if (cmdString.EqualsWithConversion("cmd_charNext"))
return selCont->CharacterMove(PR_TRUE, PR_FALSE);
else if (cmdString.EqualsWithConversion("cmd_selectCharPrevious"))
return selCont->CharacterMove(PR_FALSE, PR_TRUE);
else if (cmdString.EqualsWithConversion("cmd_selectCharNext"))
return selCont->CharacterMove(PR_TRUE, PR_TRUE);
// intra line move commands
else if (cmdString.EqualsWithConversion("cmd_beginLine"))
return selCont->IntraLineMove(PR_FALSE, PR_FALSE);
else if (cmdString.EqualsWithConversion("cmd_endLine"))
return selCont->IntraLineMove(PR_TRUE, PR_FALSE);
else if (cmdString.EqualsWithConversion("cmd_selectBeginLine"))
return selCont->IntraLineMove(PR_FALSE, PR_TRUE);
else if (cmdString.EqualsWithConversion("cmd_selectEndLine"))
return selCont->IntraLineMove(PR_TRUE, PR_TRUE);
// word move commands
else if (cmdString.EqualsWithConversion("cmd_wordPrevious"))
return selCont->WordMove(PR_FALSE, PR_FALSE);
else if (cmdString.EqualsWithConversion("cmd_wordNext"))
return selCont->WordMove(PR_TRUE, PR_FALSE);
else if (cmdString.EqualsWithConversion("cmd_selectWordPrevious"))
return selCont->WordMove(PR_FALSE, PR_TRUE);
else if (cmdString.EqualsWithConversion("cmd_selectWordNext"))
return selCont->WordMove(PR_TRUE, PR_TRUE);
// scroll page commands
else if (cmdString.EqualsWithConversion("cmd_scrollPageUp"))
return selCont->ScrollPage(PR_FALSE);
else if (cmdString.EqualsWithConversion("cmd_scrollPageDown"))
return selCont->ScrollPage(PR_TRUE);
// scroll line commands
else if (cmdString.EqualsWithConversion("cmd_scrollLineUp"))
return selCont->ScrollLine(PR_FALSE);
else if (cmdString.EqualsWithConversion("cmd_scrollLineDown"))
return selCont->ScrollLine(PR_TRUE);
// page move commands
else if (cmdString.EqualsWithConversion("cmd_scrollPageUp"))
return selCont->PageMove(PR_FALSE, PR_FALSE);
else if (cmdString.EqualsWithConversion("cmd_scrollPageDown"))
return selCont->PageMove(PR_TRUE, PR_FALSE);
else if (cmdString.EqualsWithConversion("cmd_selectPageUp"))
return selCont->PageMove(PR_FALSE, PR_TRUE);
else if (cmdString.EqualsWithConversion("cmd_selectPageDown"))
return selCont->PageMove(PR_TRUE, PR_TRUE);
return NS_ERROR_FAILURE;
}