gecko-dev/editor/libeditor/nsEditorUtils.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

227 lines
6.1 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 "mozilla/dom/Selection.h"
#include "nsCOMArray.h"
#include "nsComponentManagerUtils.h"
#include "nsEditorUtils.h"
#include "nsError.h"
#include "nsIClipboardDragDropHookList.h"
// hooks
#include "nsIClipboardDragDropHooks.h"
#include "nsIContent.h"
#include "nsIContentIterator.h"
#include "nsIDOMDocument.h"
#include "nsIDocShell.h"
#include "nsIDocument.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsINode.h"
#include "nsISimpleEnumerator.h"
class nsIDOMRange;
class nsISupports;
using namespace mozilla;
using namespace mozilla::dom;
/******************************************************************************
* nsAutoSelectionReset
*****************************************************************************/
nsAutoSelectionReset::nsAutoSelectionReset(Selection* aSel, nsEditor* aEd)
: mSel(nullptr), mEd(nullptr)
{
if (!aSel || !aEd) return; // not much we can do, bail.
if (aEd->ArePreservingSelection()) return; // we already have initted mSavedSel, so this must be nested call.
mSel = aSel;
mEd = aEd;
if (mSel)
{
mEd->PreserveSelectionAcrossActions(mSel);
}
}
nsAutoSelectionReset::~nsAutoSelectionReset()
{
NS_ASSERTION(!mSel || mEd, "mEd should be non-null when mSel is");
if (mSel && mEd->ArePreservingSelection()) // mSel will be null if this was nested call
{
mEd->RestorePreservedSelection(mSel);
}
}
void
nsAutoSelectionReset::Abort()
{
NS_ASSERTION(!mSel || mEd, "mEd should be non-null when mSel is");
if (mSel)
mEd->StopPreservingSelection();
}
/******************************************************************************
* some helper classes for iterating the dom tree
*****************************************************************************/
nsDOMIterator::nsDOMIterator() :
mIter(nullptr)
{
}
nsDOMIterator::~nsDOMIterator()
{
}
nsresult
nsDOMIterator::Init(nsIDOMRange* aRange)
{
nsresult res;
mIter = do_CreateInstance("@mozilla.org/content/post-content-iterator;1", &res);
NS_ENSURE_SUCCESS(res, res);
NS_ENSURE_TRUE(mIter, NS_ERROR_FAILURE);
return mIter->Init(aRange);
}
nsresult
nsDOMIterator::Init(nsIDOMNode* aNode)
{
nsresult res;
mIter = do_CreateInstance("@mozilla.org/content/post-content-iterator;1", &res);
NS_ENSURE_SUCCESS(res, res);
NS_ENSURE_TRUE(mIter, NS_ERROR_FAILURE);
nsCOMPtr<nsIContent> content = do_QueryInterface(aNode);
return mIter->Init(content);
}
nsresult
nsDOMIterator::AppendList(nsBoolDomIterFunctor& functor,
nsCOMArray<nsIDOMNode>& arrayOfNodes) const
{
nsCOMPtr<nsIDOMNode> node;
// iterate through dom and build list
while (!mIter->IsDone())
{
node = do_QueryInterface(mIter->GetCurrentNode());
NS_ENSURE_TRUE(node, NS_ERROR_NULL_POINTER);
if (functor(node))
{
arrayOfNodes.AppendObject(node);
}
mIter->Next();
}
return NS_OK;
}
nsDOMSubtreeIterator::nsDOMSubtreeIterator()
{
}
nsDOMSubtreeIterator::~nsDOMSubtreeIterator()
{
}
nsresult
nsDOMSubtreeIterator::Init(nsIDOMRange* aRange)
{
nsresult res;
mIter = do_CreateInstance("@mozilla.org/content/subtree-content-iterator;1", &res);
NS_ENSURE_SUCCESS(res, res);
NS_ENSURE_TRUE(mIter, NS_ERROR_FAILURE);
return mIter->Init(aRange);
}
/******************************************************************************
* some general purpose editor utils
*****************************************************************************/
bool
nsEditorUtils::IsDescendantOf(nsINode* aNode, nsINode* aParent, int32_t* aOffset)
{
MOZ_ASSERT(aNode && aParent);
if (aNode == aParent) {
return false;
}
for (nsCOMPtr<nsINode> node = aNode; node; node = node->GetParentNode()) {
if (node->GetParentNode() == aParent) {
if (aOffset) {
*aOffset = aParent->IndexOf(node);
}
return true;
}
}
return false;
}
bool
nsEditorUtils::IsDescendantOf(nsIDOMNode* aNode, nsIDOMNode* aParent, int32_t* aOffset)
{
nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
nsCOMPtr<nsINode> parent = do_QueryInterface(aParent);
NS_ENSURE_TRUE(node && parent, false);
return IsDescendantOf(node, parent, aOffset);
}
bool
nsEditorUtils::IsLeafNode(nsIDOMNode *aNode)
{
bool hasChildren = false;
if (aNode)
aNode->HasChildNodes(&hasChildren);
return !hasChildren;
}
/******************************************************************************
* utility methods for drag/drop/copy/paste hooks
*****************************************************************************/
nsresult
nsEditorHookUtils::GetHookEnumeratorFromDocument(nsIDOMDocument *aDoc,
nsISimpleEnumerator **aResult)
{
nsCOMPtr<nsIDocument> doc = do_QueryInterface(aDoc);
NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
nsCOMPtr<nsIDocShell> docShell = doc->GetDocShell();
nsCOMPtr<nsIClipboardDragDropHookList> hookObj = do_GetInterface(docShell);
NS_ENSURE_TRUE(hookObj, NS_ERROR_FAILURE);
return hookObj->GetHookEnumerator(aResult);
}
bool
nsEditorHookUtils::DoInsertionHook(nsIDOMDocument *aDoc, nsIDOMEvent *aDropEvent,
nsITransferable *aTrans)
{
nsCOMPtr<nsISimpleEnumerator> enumerator;
GetHookEnumeratorFromDocument(aDoc, getter_AddRefs(enumerator));
NS_ENSURE_TRUE(enumerator, true);
bool hasMoreHooks = false;
while (NS_SUCCEEDED(enumerator->HasMoreElements(&hasMoreHooks)) && hasMoreHooks)
{
nsCOMPtr<nsISupports> isupp;
if (NS_FAILED(enumerator->GetNext(getter_AddRefs(isupp))))
break;
nsCOMPtr<nsIClipboardDragDropHooks> override = do_QueryInterface(isupp);
if (override)
{
bool doInsert = true;
#ifdef DEBUG
nsresult hookResult =
#endif
override->OnPasteOrDrop(aDropEvent, aTrans, &doInsert);
NS_ASSERTION(NS_SUCCEEDED(hookResult), "hook failure in OnPasteOrDrop");
NS_ENSURE_TRUE(doInsert, false);
}
}
return true;
}