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/*
* Copyright (C) 2005, 2006, 2007 Apple, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "EditCommand.h"
#include "CompositeEditCommand.h"
#include "DeleteButtonController.h"
#include "Document.h"
#include "Editor.h"
#include "Element.h"
#include "EventNames.h"
#include "Frame.h"
#include "ScopedEventQueue.h"
#include "SelectionController.h"
#include "VisiblePosition.h"
#include "htmlediting.h"
namespace WebCore {
EditCommand::EditCommand(Document* document)
: m_document(document)
, m_parent(0)
{
ASSERT(m_document);
ASSERT(m_document->frame());
setStartingSelection(avoidIntersectionWithNode(m_document->frame()->selection()->selection(), m_document->frame()->editor()->deleteButtonController()->containerElement()));
setEndingSelection(m_startingSelection);
}
EditCommand::~EditCommand()
{
}
void EditCommand::apply()
{
ASSERT(m_document);
ASSERT(m_document->frame());
Frame* frame = m_document->frame();
if (isTopLevelCommand()) {
if (!endingSelection().isContentRichlyEditable()) {
switch (editingAction()) {
case EditActionTyping:
case EditActionPaste:
case EditActionDrag:
case EditActionSetWritingDirection:
case EditActionCut:
case EditActionUnspecified:
break;
default:
ASSERT_NOT_REACHED();
return;
}
}
}
// Changes to the document may have been made since the last editing operation that
// require a layout, as in <rdar://problem/5658603>. Low level operations, like
// RemoveNodeCommand, don't require a layout because the high level operations that
// use them perform one if one is necessary (like for the creation of VisiblePositions).
if (isTopLevelCommand())
updateLayout();
{
EventQueueScope scope;
DeleteButtonController* deleteButtonController = frame->editor()->deleteButtonController();
deleteButtonController->disable();
doApply();
deleteButtonController->enable();
}
if (isTopLevelCommand()) {
// Only need to call appliedEditing for top-level commands, and TypingCommands do it on their
// own (see TypingCommand::typingAddedToOpenCommand).
if (!isTypingCommand())
frame->editor()->appliedEditing(this);
}
setShouldRetainAutocorrectionIndicator(false);
}
void EditCommand::unapply()
{
ASSERT(m_document);
ASSERT(m_document->frame());
Frame* frame = m_document->frame();
// Changes to the document may have been made since the last editing operation that
// require a layout, as in <rdar://problem/5658603>. Low level operations, like
// RemoveNodeCommand, don't require a layout because the high level operations that
// use them perform one if one is necessary (like for the creation of VisiblePositions).
if (isTopLevelCommand())
updateLayout();
DeleteButtonController* deleteButtonController = frame->editor()->deleteButtonController();
deleteButtonController->disable();
doUnapply();
deleteButtonController->enable();
if (isTopLevelCommand())
frame->editor()->unappliedEditing(this);
}
void EditCommand::reapply()
{
ASSERT(m_document);
ASSERT(m_document->frame());
Frame* frame = m_document->frame();
// Changes to the document may have been made since the last editing operation that
// require a layout, as in <rdar://problem/5658603>. Low level operations, like
// RemoveNodeCommand, don't require a layout because the high level operations that
// use them perform one if one is necessary (like for the creation of VisiblePositions).
if (isTopLevelCommand())
updateLayout();
DeleteButtonController* deleteButtonController = frame->editor()->deleteButtonController();
deleteButtonController->disable();
doReapply();
deleteButtonController->enable();
if (isTopLevelCommand())
frame->editor()->reappliedEditing(this);
}
void EditCommand::doReapply()
{
doApply();
}
EditAction EditCommand::editingAction() const
{
return EditActionUnspecified;
}
void EditCommand::setStartingSelection(const VisibleSelection& s)
{
Element* root = s.rootEditableElement();
for (EditCommand* cmd = this; ; cmd = cmd->m_parent) {
cmd->m_startingSelection = s;
cmd->m_startingRootEditableElement = root;
if (!cmd->m_parent || cmd->m_parent->isFirstCommand(cmd))
break;
}
}
void EditCommand::setEndingSelection(const VisibleSelection &s)
{
Element* root = s.rootEditableElement();
for (EditCommand* cmd = this; cmd; cmd = cmd->m_parent) {
cmd->m_endingSelection = s;
cmd->m_endingRootEditableElement = root;
}
}
bool EditCommand::preservesTypingStyle() const
{
return false;
}
bool EditCommand::isInsertTextCommand() const
{
return false;
}
bool EditCommand::isTypingCommand() const
{
return false;
}
bool EditCommand::shouldRetainAutocorrectionIndicator() const
{
return false;
}
void EditCommand::setShouldRetainAutocorrectionIndicator(bool)
{
}
void EditCommand::updateLayout() const
{
document()->updateLayoutIgnorePendingStylesheets();
}
void EditCommand::setParent(CompositeEditCommand* parent)
{
ASSERT(parent);
ASSERT(!m_parent);
m_parent = parent;
m_startingSelection = parent->m_endingSelection;
m_endingSelection = parent->m_endingSelection;
m_startingRootEditableElement = parent->m_endingRootEditableElement;
m_endingRootEditableElement = parent->m_endingRootEditableElement;
}
void applyCommand(PassRefPtr<EditCommand> command)
{
command->apply();
}
} // namespace WebCore