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/*
* Copyright (C) 2005, 2006, 2007, 2013 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 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 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 "AXObjectCache.h"
#include "CompositeEditCommand.h"
#include "Document.h"
#include "Editor.h"
#include "Element.h"
#include "EventNames.h"
#include "Frame.h"
#include "NodeTraversal.h"
#include "htmlediting.h"
namespace WebCore {
EditCommand::EditCommand(Document& document, EditAction editingAction)
: m_document(document)
, m_editingAction(editingAction)
{
ASSERT(document.frame());
setStartingSelection(m_document->frame()->selection().selection());
setEndingSelection(m_startingSelection);
}
EditCommand::EditCommand(Document& document, const VisibleSelection& startingSelection, const VisibleSelection& endingSelection)
: m_document(document)
{
ASSERT(document.frame());
setStartingSelection(startingSelection);
setEndingSelection(endingSelection);
}
EditCommand::~EditCommand()
{
}
Frame& EditCommand::frame()
{
ASSERT(document().frame());
return *document().frame();
}
EditAction EditCommand::editingAction() const
{
return m_editingAction;
}
static inline EditCommandComposition* compositionIfPossible(EditCommand* command)
{
if (!command->isCompositeEditCommand())
return 0;
return toCompositeEditCommand(command)->composition();
}
void EditCommand::setStartingSelection(const VisibleSelection& s)
{
for (EditCommand* cmd = this; ; cmd = cmd->m_parent) {
if (EditCommandComposition* composition = compositionIfPossible(cmd)) {
ASSERT(cmd->isTopLevelCommand());
composition->setStartingSelection(s);
}
cmd->m_startingSelection = s;
if (!cmd->m_parent || cmd->m_parent->isFirstCommand(cmd))
break;
}
}
void EditCommand::setEndingSelection(const VisibleSelection &s)
{
for (EditCommand* cmd = this; cmd; cmd = cmd->m_parent) {
if (EditCommandComposition* composition = compositionIfPossible(cmd)) {
ASSERT(cmd->isTopLevelCommand());
composition->setEndingSelection(s);
}
cmd->m_endingSelection = s;
}
}
void EditCommand::setParent(CompositeEditCommand* parent)
{
ASSERT((parent && !m_parent) || (!parent && m_parent));
ASSERT(!parent || !isCompositeEditCommand() || !toCompositeEditCommand(this)->composition());
m_parent = parent;
if (parent) {
m_startingSelection = parent->m_endingSelection;
m_endingSelection = parent->m_endingSelection;
}
}
AXTextEditType EditCommand::applyEditType() const
{
switch (editingAction()) {
case EditActionCut:
return AXTextEditTypeCut;
case EditActionDelete:
return AXTextEditTypeDelete;
case EditActionDictation:
return AXTextEditTypeDictation;
case EditActionInsert:
return AXTextEditTypeInsert;
case EditActionPaste:
return AXTextEditTypePaste;
case EditActionTyping:
return AXTextEditTypeTyping;
case EditActionSetColor:
case EditActionSetBackgroundColor:
case EditActionTurnOffKerning:
case EditActionTightenKerning:
case EditActionLoosenKerning:
case EditActionUseStandardKerning:
case EditActionTurnOffLigatures:
case EditActionUseStandardLigatures:
case EditActionUseAllLigatures:
case EditActionRaiseBaseline:
case EditActionLowerBaseline:
case EditActionSetTraditionalCharacterShape:
case EditActionSetFont:
case EditActionChangeAttributes:
case EditActionAlignLeft:
case EditActionAlignRight:
case EditActionCenter:
case EditActionJustify:
case EditActionSetWritingDirection:
case EditActionSubscript:
case EditActionSuperscript:
case EditActionUnderline:
case EditActionOutline:
case EditActionUnscript:
case EditActionBold:
case EditActionItalics:
case EditActionFormatBlock:
case EditActionIndent:
case EditActionOutdent:
return AXTextEditTypeAttributesChange;
// Include default case for unhandled EditAction cases.
default:
break;
}
return AXTextEditTypeUnknown;
}
AXTextEditType EditCommand::unapplyEditType() const
{
switch (applyEditType()) {
case AXTextEditTypeUnknown:
return AXTextEditTypeUnknown;
case AXTextEditTypeDelete:
case AXTextEditTypeCut:
return AXTextEditTypeInsert;
case AXTextEditTypeInsert:
case AXTextEditTypeTyping:
case AXTextEditTypeDictation:
case AXTextEditTypePaste:
return AXTextEditTypeDelete;
case AXTextEditTypeAttributesChange:
return AXTextEditTypeAttributesChange;
}
return AXTextEditTypeUnknown;
}
bool EditCommand::shouldPostAccessibilityNotification() const
{
return AXObjectCache::accessibilityEnabled() && editingAction() != EditActionUnspecified;
}
SimpleEditCommand::SimpleEditCommand(Document& document, EditAction editingAction)
: EditCommand(document, editingAction)
{
}
void SimpleEditCommand::doReapply()
{
doApply();
}
#ifndef NDEBUG
void SimpleEditCommand::addNodeAndDescendants(Node* startNode, HashSet<Node*>& nodes)
{
for (Node* node = startNode; node; node = NodeTraversal::next(*node, startNode))
nodes.add(node);
}
#endif
void SimpleEditCommand::notifyAccessibilityForTextChange(Node* node, AXTextEditType type, const String& text, const VisiblePosition& position)
{
if (!AXObjectCache::accessibilityEnabled())
return;
AXObjectCache* cache = document().existingAXObjectCache();
if (!cache)
return;
cache->postTextStateChangeNotification(node, type, text, position);
}
} // namespace WebCore
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