gecko-dev/editor/libeditor/SetDocTitleTxn.cpp
Ehsan Akhgari 22b7f33edd Bug 1042469 - Flatten editor/libeditor/base to editor/libeditor; r=poiru
--HG--
rename : editor/libeditor/base/ChangeAttributeTxn.cpp => editor/libeditor/ChangeAttributeTxn.cpp
rename : editor/libeditor/base/ChangeAttributeTxn.h => editor/libeditor/ChangeAttributeTxn.h
rename : editor/libeditor/base/ChangeCSSInlineStyleTxn.cpp => editor/libeditor/ChangeCSSInlineStyleTxn.cpp
rename : editor/libeditor/base/ChangeCSSInlineStyleTxn.h => editor/libeditor/ChangeCSSInlineStyleTxn.h
rename : editor/libeditor/base/CreateElementTxn.cpp => editor/libeditor/CreateElementTxn.cpp
rename : editor/libeditor/base/CreateElementTxn.h => editor/libeditor/CreateElementTxn.h
rename : editor/libeditor/base/DeleteNodeTxn.cpp => editor/libeditor/DeleteNodeTxn.cpp
rename : editor/libeditor/base/DeleteNodeTxn.h => editor/libeditor/DeleteNodeTxn.h
rename : editor/libeditor/base/DeleteRangeTxn.cpp => editor/libeditor/DeleteRangeTxn.cpp
rename : editor/libeditor/base/DeleteRangeTxn.h => editor/libeditor/DeleteRangeTxn.h
rename : editor/libeditor/base/DeleteTextTxn.cpp => editor/libeditor/DeleteTextTxn.cpp
rename : editor/libeditor/base/DeleteTextTxn.h => editor/libeditor/DeleteTextTxn.h
rename : editor/libeditor/base/EditActionListener.h => editor/libeditor/EditActionListener.h
rename : editor/libeditor/base/EditAggregateTxn.cpp => editor/libeditor/EditAggregateTxn.cpp
rename : editor/libeditor/base/EditAggregateTxn.h => editor/libeditor/EditAggregateTxn.h
rename : editor/libeditor/base/EditTxn.cpp => editor/libeditor/EditTxn.cpp
rename : editor/libeditor/base/EditTxn.h => editor/libeditor/EditTxn.h
rename : editor/libeditor/base/IMETextTxn.cpp => editor/libeditor/IMETextTxn.cpp
rename : editor/libeditor/base/IMETextTxn.h => editor/libeditor/IMETextTxn.h
rename : editor/libeditor/base/InsertElementTxn.cpp => editor/libeditor/InsertElementTxn.cpp
rename : editor/libeditor/base/InsertElementTxn.h => editor/libeditor/InsertElementTxn.h
rename : editor/libeditor/base/InsertTextTxn.cpp => editor/libeditor/InsertTextTxn.cpp
rename : editor/libeditor/base/InsertTextTxn.h => editor/libeditor/InsertTextTxn.h
rename : editor/libeditor/base/JoinElementTxn.cpp => editor/libeditor/JoinElementTxn.cpp
rename : editor/libeditor/base/JoinElementTxn.h => editor/libeditor/JoinElementTxn.h
rename : editor/libeditor/base/PlaceholderTxn.cpp => editor/libeditor/PlaceholderTxn.cpp
rename : editor/libeditor/base/PlaceholderTxn.h => editor/libeditor/PlaceholderTxn.h
rename : editor/libeditor/base/SetDocTitleTxn.cpp => editor/libeditor/SetDocTitleTxn.cpp
rename : editor/libeditor/base/SetDocTitleTxn.h => editor/libeditor/SetDocTitleTxn.h
rename : editor/libeditor/base/SplitElementTxn.cpp => editor/libeditor/SplitElementTxn.cpp
rename : editor/libeditor/base/SplitElementTxn.h => editor/libeditor/SplitElementTxn.h
rename : editor/libeditor/base/crashtests/336104.html => editor/libeditor/crashtests/336104.html
rename : editor/libeditor/base/crashtests/382527-1.html => editor/libeditor/crashtests/382527-1.html
rename : editor/libeditor/base/crashtests/402172-1.html => editor/libeditor/crashtests/402172-1.html
rename : editor/libeditor/base/crashtests/407079-1.html => editor/libeditor/crashtests/407079-1.html
rename : editor/libeditor/base/crashtests/407256-1.html => editor/libeditor/crashtests/407256-1.html
rename : editor/libeditor/base/crashtests/430624-1.html => editor/libeditor/crashtests/430624-1.html
rename : editor/libeditor/base/crashtests/459613-iframe.html => editor/libeditor/crashtests/459613-iframe.html
rename : editor/libeditor/base/crashtests/459613.html => editor/libeditor/crashtests/459613.html
rename : editor/libeditor/base/crashtests/475132-1.xhtml => editor/libeditor/crashtests/475132-1.xhtml
rename : editor/libeditor/base/crashtests/633709.xhtml => editor/libeditor/crashtests/633709.xhtml
rename : editor/libeditor/base/crashtests/636074-1.html => editor/libeditor/crashtests/636074-1.html
rename : editor/libeditor/base/crashtests/713427-1.html => editor/libeditor/crashtests/713427-1.html
rename : editor/libeditor/base/crashtests/713427-2.xhtml => editor/libeditor/crashtests/713427-2.xhtml
rename : editor/libeditor/base/crashtests/762183.html => editor/libeditor/crashtests/762183.html
rename : editor/libeditor/base/crashtests/766360.html => editor/libeditor/crashtests/766360.html
rename : editor/libeditor/base/crashtests/766413.html => editor/libeditor/crashtests/766413.html
rename : editor/libeditor/base/crashtests/766845.xhtml => editor/libeditor/crashtests/766845.xhtml
rename : editor/libeditor/base/crashtests/768765.html => editor/libeditor/crashtests/768765.html
rename : editor/libeditor/base/crashtests/771749.html => editor/libeditor/crashtests/771749.html
rename : editor/libeditor/base/crashtests/772282.html => editor/libeditor/crashtests/772282.html
rename : editor/libeditor/base/crashtests/776323.html => editor/libeditor/crashtests/776323.html
rename : editor/libeditor/base/crashtests/crashtests.list => editor/libeditor/crashtests/crashtests.list
rename : editor/libeditor/base/nsEditProperty.h => editor/libeditor/nsEditProperty.h
rename : editor/libeditor/base/nsEditPropertyAtomList.h => editor/libeditor/nsEditPropertyAtomList.h
rename : editor/libeditor/base/nsEditRules.h => editor/libeditor/nsEditRules.h
rename : editor/libeditor/base/nsEditor.cpp => editor/libeditor/nsEditor.cpp
rename : editor/libeditor/base/nsEditor.h => editor/libeditor/nsEditor.h
rename : editor/libeditor/base/nsEditorCommands.cpp => editor/libeditor/nsEditorCommands.cpp
rename : editor/libeditor/base/nsEditorCommands.h => editor/libeditor/nsEditorCommands.h
rename : editor/libeditor/base/nsEditorController.cpp => editor/libeditor/nsEditorController.cpp
rename : editor/libeditor/base/nsEditorController.h => editor/libeditor/nsEditorController.h
rename : editor/libeditor/base/nsEditorEventListener.cpp => editor/libeditor/nsEditorEventListener.cpp
rename : editor/libeditor/base/nsEditorEventListener.h => editor/libeditor/nsEditorEventListener.h
rename : editor/libeditor/base/nsEditorUtils.cpp => editor/libeditor/nsEditorUtils.cpp
rename : editor/libeditor/base/nsEditorUtils.h => editor/libeditor/nsEditorUtils.h
rename : editor/libeditor/base/nsIAbsorbingTransaction.h => editor/libeditor/nsIAbsorbingTransaction.h
rename : editor/libeditor/base/nsSelectionState.cpp => editor/libeditor/nsSelectionState.cpp
rename : editor/libeditor/base/nsSelectionState.h => editor/libeditor/nsSelectionState.h
rename : editor/libeditor/base/nsStyleSheetTxns.cpp => editor/libeditor/nsStyleSheetTxns.cpp
rename : editor/libeditor/base/nsStyleSheetTxns.h => editor/libeditor/nsStyleSheetTxns.h
rename : editor/libeditor/base/tests/chrome.ini => editor/libeditor/tests/chrome.ini
rename : editor/libeditor/base/tests/file_bug586662.html => editor/libeditor/tests/file_bug586662.html
rename : editor/libeditor/base/tests/mochitest.ini => editor/libeditor/tests/mochitest.ini
rename : editor/libeditor/base/tests/moz.build => editor/libeditor/tests/moz.build
rename : editor/libeditor/base/tests/test_bug408231.html => editor/libeditor/tests/test_bug408231.html
rename : editor/libeditor/base/tests/test_bug46555.html => editor/libeditor/tests/test_bug46555.html
rename : editor/libeditor/base/tests/test_bug502673.html => editor/libeditor/tests/test_bug502673.html
rename : editor/libeditor/base/tests/test_bug514156.html => editor/libeditor/tests/test_bug514156.html
rename : editor/libeditor/base/tests/test_bug567213.html => editor/libeditor/tests/test_bug567213.html
rename : editor/libeditor/base/tests/test_bug586662.html => editor/libeditor/tests/test_bug586662.html
rename : editor/libeditor/base/tests/test_bug599983.html => editor/libeditor/tests/test_bug599983.html
rename : editor/libeditor/base/tests/test_bug599983.xul => editor/libeditor/tests/test_bug599983.xul
rename : editor/libeditor/base/tests/test_bug646194.xul => editor/libeditor/tests/test_bug646194.xul
rename : editor/libeditor/base/tests/test_bug742261.html => editor/libeditor/tests/test_bug742261.html
rename : editor/libeditor/base/tests/test_bug773262.html => editor/libeditor/tests/test_bug773262.html
rename : editor/libeditor/base/tests/test_bug795785.html => editor/libeditor/tests/test_bug795785.html
rename : editor/libeditor/base/tests/test_composition_event_created_in_chrome.html => editor/libeditor/tests/test_composition_event_created_in_chrome.html
rename : editor/libeditor/base/tests/test_dragdrop.html => editor/libeditor/tests/test_dragdrop.html
rename : editor/libeditor/base/tests/test_selection_move_commands.xul => editor/libeditor/tests/test_selection_move_commands.xul
2014-08-15 10:03:48 -04:00

183 lines
5.5 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "SetDocTitleTxn.h"
#include "mozilla/dom/Element.h" // for Element
#include "nsAString.h"
#include "nsCOMPtr.h" // for nsCOMPtr, getter_AddRefs, etc
#include "nsDebug.h" // for NS_ENSURE_SUCCESS, etc
#include "nsError.h" // for NS_OK, NS_ERROR_FAILURE, etc
#include "nsIDOMCharacterData.h" // for nsIDOMCharacterData
#include "nsIDOMDocument.h" // for nsIDOMDocument
#include "nsIDOMElement.h" // for nsIDOMElement
#include "nsIDOMNode.h" // for nsIDOMNode
#include "nsIDOMNodeList.h" // for nsIDOMNodeList
#include "nsIDOMText.h" // for nsIDOMText
#include "nsIDocument.h" // for nsIDocument
#include "nsIEditor.h" // for nsIEditor
#include "nsIHTMLEditor.h" // for nsIHTMLEditor
#include "nsLiteralString.h" // for NS_LITERAL_STRING
using namespace mozilla;
// note that aEditor is not refcounted
SetDocTitleTxn::SetDocTitleTxn()
: EditTxn()
, mIsTransient(false)
{
}
NS_IMETHODIMP SetDocTitleTxn::Init(nsIHTMLEditor *aEditor,
const nsAString *aValue)
{
NS_ASSERTION(aEditor && aValue, "null args");
if (!aEditor || !aValue) { return NS_ERROR_NULL_POINTER; }
mEditor = aEditor;
mValue = *aValue;
return NS_OK;
}
NS_IMETHODIMP SetDocTitleTxn::DoTransaction(void)
{
return SetDomTitle(mValue);
}
NS_IMETHODIMP SetDocTitleTxn::UndoTransaction(void)
{
// No extra work required; the DOM changes alone are enough
return NS_OK;
}
NS_IMETHODIMP SetDocTitleTxn::RedoTransaction(void)
{
// No extra work required; the DOM changes alone are enough
return NS_OK;
}
nsresult SetDocTitleTxn::SetDomTitle(const nsAString& aTitle)
{
nsCOMPtr<nsIEditor> editor = do_QueryInterface(mEditor);
NS_ENSURE_TRUE(editor, NS_ERROR_FAILURE);
nsCOMPtr<nsIDOMDocument> domDoc;
nsresult res = editor->GetDocument(getter_AddRefs(domDoc));
NS_ENSURE_TRUE(domDoc, NS_ERROR_FAILURE);
nsCOMPtr<nsIDOMNodeList> titleList;
res = domDoc->GetElementsByTagName(NS_LITERAL_STRING("title"), getter_AddRefs(titleList));
NS_ENSURE_SUCCESS(res, res);
// First assume we will NOT really do anything
// (transaction will not be pushed on stack)
mIsTransient = true;
nsCOMPtr<nsIDOMNode>titleNode;
if(titleList)
{
res = titleList->Item(0, getter_AddRefs(titleNode));
NS_ENSURE_SUCCESS(res, res);
if (titleNode)
{
// Delete existing child textnode of title node
// (Note: all contents under a TITLE node are always in a single text node)
nsCOMPtr<nsIDOMNode> child;
res = titleNode->GetFirstChild(getter_AddRefs(child));
if(NS_FAILED(res)) return res;
if(child)
{
// Save current text as the undo value
nsCOMPtr<nsIDOMCharacterData> textNode = do_QueryInterface(child);
if(textNode)
{
textNode->GetData(mUndoValue);
// If title text is identical to what already exists,
// quit now (mIsTransient is now TRUE)
if (mUndoValue == aTitle)
return NS_OK;
}
res = editor->DeleteNode(child);
if(NS_FAILED(res)) return res;
}
}
}
// We didn't return above, thus we really will be changing the title
mIsTransient = false;
// Get the <HEAD> node, create a <TITLE> and insert it under the HEAD
nsCOMPtr<nsIDocument> document = do_QueryInterface(domDoc);
NS_ENSURE_STATE(document);
dom::Element* head = document->GetHeadElement();
NS_ENSURE_STATE(head);
bool newTitleNode = false;
uint32_t newTitleIndex = 0;
if (!titleNode)
{
// Didn't find one above: Create a new one
nsCOMPtr<nsIDOMElement>titleElement;
res = domDoc->CreateElement(NS_LITERAL_STRING("title"), getter_AddRefs(titleElement));
NS_ENSURE_SUCCESS(res, res);
NS_ENSURE_TRUE(titleElement, NS_ERROR_FAILURE);
titleNode = do_QueryInterface(titleElement);
newTitleNode = true;
// Get index so we append new title node after all existing HEAD children.
newTitleIndex = head->GetChildCount();
}
// Append a text node under the TITLE
// only if the title text isn't empty
if (titleNode && !aTitle.IsEmpty())
{
nsCOMPtr<nsIDOMText> textNode;
res = domDoc->CreateTextNode(aTitle, getter_AddRefs(textNode));
NS_ENSURE_SUCCESS(res, res);
nsCOMPtr<nsIDOMNode> newNode = do_QueryInterface(textNode);
NS_ENSURE_TRUE(newNode, NS_ERROR_FAILURE);
if (newTitleNode)
{
// Not undoable: We will insert newTitleNode below
nsCOMPtr<nsIDOMNode> resultNode;
res = titleNode->AppendChild(newNode, getter_AddRefs(resultNode));
}
else
{
// This is an undoable transaction
res = editor->InsertNode(newNode, titleNode, 0);
}
NS_ENSURE_SUCCESS(res, res);
}
if (newTitleNode)
{
// Undoable transaction to insert title+text together
res = editor->InsertNode(titleNode, head->AsDOMNode(), newTitleIndex);
}
return res;
}
NS_IMETHODIMP SetDocTitleTxn::GetTxnDescription(nsAString& aString)
{
aString.AssignLiteral("SetDocTitleTxn: ");
aString += mValue;
return NS_OK;
}
NS_IMETHODIMP SetDocTitleTxn::GetIsTransient(bool *aIsTransient)
{
NS_ENSURE_TRUE(aIsTransient, NS_ERROR_NULL_POINTER);
*aIsTransient = mIsTransient;
return NS_OK;
}