gecko-dev/editor/libeditor/TextEditRulesBidi.cpp

101 строка
3.0 KiB
C++
Исходник Обычный вид История

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2012-05-21 15:12:37 +04:00
/* 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/TextEditRules.h"
#include "mozilla/TextEditor.h"
#include "mozilla/dom/Selection.h"
#include "nsCOMPtr.h"
#include "nsDebug.h"
#include "nsError.h"
#include "nsFrameSelection.h"
#include "nsIContent.h"
#include "nsIDOMNode.h"
#include "nsIEditor.h"
#include "nsIPresShell.h"
#include "nsISupportsImpl.h"
#include "nsPresContext.h"
#include "nscore.h"
namespace mozilla {
using namespace dom;
// Test for distance between caret and text that will be deleted
nsresult
TextEditRules::CheckBidiLevelForDeletion(Selection* aSelection,
nsIDOMNode* aSelNode,
int32_t aSelOffset,
nsIEditor::EDirection aAction,
bool* aCancel)
{
NS_ENSURE_ARG_POINTER(aCancel);
*aCancel = false;
nsCOMPtr<nsIPresShell> shell = mTextEditor->GetPresShell();
NS_ENSURE_TRUE(shell, NS_ERROR_NOT_INITIALIZED);
nsPresContext *context = shell->GetPresContext();
NS_ENSURE_TRUE(context, NS_ERROR_NULL_POINTER);
if (!context->BidiEnabled()) {
return NS_OK;
}
nsCOMPtr<nsIContent> content = do_QueryInterface(aSelNode);
NS_ENSURE_TRUE(content, NS_ERROR_NULL_POINTER);
nsBidiLevel levelBefore;
nsBidiLevel levelAfter;
Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat The bulk of this commit was generated with a script, executed at the top level of a typical source code checkout. The only non-machine-generated part was modifying MFBT's moz.build to reflect the new naming. CLOSED TREE makes big refactorings like this a piece of cake. # The main substitution. find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ xargs perl -p -i -e ' s/nsRefPtr\.h/RefPtr\.h/g; # handle includes s/nsRefPtr ?</RefPtr</g; # handle declarations and variables ' # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h. perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h # Handle nsRefPtr.h itself, a couple places that define constructors # from nsRefPtr, and code generators specially. We do this here, rather # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename # things like nsRefPtrHashtable. perl -p -i -e 's/nsRefPtr/RefPtr/g' \ mfbt/nsRefPtr.h \ xpcom/glue/nsCOMPtr.h \ xpcom/base/OwningNonNull.h \ ipc/ipdl/ipdl/lower.py \ ipc/ipdl/ipdl/builtin.py \ dom/bindings/Codegen.py \ python/lldbutils/lldbutils/utils.py # In our indiscriminate substitution above, we renamed # nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up. find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \ xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g' if [ -d .git ]; then git mv mfbt/nsRefPtr.h mfbt/RefPtr.h else hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h fi --HG-- rename : mfbt/nsRefPtr.h => mfbt/RefPtr.h
2015-10-18 08:24:48 +03:00
RefPtr<nsFrameSelection> frameSelection =
aSelection->AsSelection()->GetFrameSelection();
NS_ENSURE_TRUE(frameSelection, NS_ERROR_NULL_POINTER);
nsPrevNextBidiLevels levels = frameSelection->
GetPrevNextBidiLevels(content, aSelOffset, true);
levelBefore = levels.mLevelBefore;
levelAfter = levels.mLevelAfter;
nsBidiLevel currentCaretLevel = frameSelection->GetCaretBidiLevel();
nsBidiLevel levelOfDeletion;
levelOfDeletion =
(nsIEditor::eNext==aAction || nsIEditor::eNextWord==aAction) ?
levelAfter : levelBefore;
if (currentCaretLevel == levelOfDeletion) {
return NS_OK; // perform the deletion
}
if (!mDeleteBidiImmediately && levelBefore != levelAfter) {
*aCancel = true;
}
// Set the bidi level of the caret to that of the
// character that will be (or would have been) deleted
frameSelection->SetCaretBidiLevel(levelOfDeletion);
return NS_OK;
}
void
TextEditRules::UndefineCaretBidiLevel(Selection* aSelection)
{
/**
* After inserting text the caret Bidi level must be set to the level of the
* inserted text.This is difficult, because we cannot know what the level is
* until after the Bidi algorithm is applied to the whole paragraph.
*
* So we set the caret Bidi level to UNDEFINED here, and the caret code will
* set it correctly later
*/
Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat The bulk of this commit was generated with a script, executed at the top level of a typical source code checkout. The only non-machine-generated part was modifying MFBT's moz.build to reflect the new naming. CLOSED TREE makes big refactorings like this a piece of cake. # The main substitution. find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ xargs perl -p -i -e ' s/nsRefPtr\.h/RefPtr\.h/g; # handle includes s/nsRefPtr ?</RefPtr</g; # handle declarations and variables ' # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h. perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h # Handle nsRefPtr.h itself, a couple places that define constructors # from nsRefPtr, and code generators specially. We do this here, rather # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename # things like nsRefPtrHashtable. perl -p -i -e 's/nsRefPtr/RefPtr/g' \ mfbt/nsRefPtr.h \ xpcom/glue/nsCOMPtr.h \ xpcom/base/OwningNonNull.h \ ipc/ipdl/ipdl/lower.py \ ipc/ipdl/ipdl/builtin.py \ dom/bindings/Codegen.py \ python/lldbutils/lldbutils/utils.py # In our indiscriminate substitution above, we renamed # nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up. find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \ xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g' if [ -d .git ]; then git mv mfbt/nsRefPtr.h mfbt/RefPtr.h else hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h fi --HG-- rename : mfbt/nsRefPtr.h => mfbt/RefPtr.h
2015-10-18 08:24:48 +03:00
RefPtr<nsFrameSelection> frameSelection = aSelection->GetFrameSelection();
if (frameSelection) {
frameSelection->UndefineCaretBidiLevel();
}
}
} // namespace mozilla