зеркало из https://github.com/mozilla/gecko-dev.git
105 строки
3.3 KiB
C++
105 строки
3.3 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/. */
|
|
|
|
#ifndef CompositionTransaction_h
|
|
#define CompositionTransaction_h
|
|
|
|
#include "mozilla/EditTransactionBase.h" // base class
|
|
#include "nsCycleCollectionParticipant.h" // various macros
|
|
#include "nsString.h" // mStringToInsert
|
|
|
|
#define NS_IMETEXTTXN_IID \
|
|
{ 0xb391355d, 0x346c, 0x43d1, \
|
|
{ 0x85, 0xed, 0x9e, 0x65, 0xbe, 0xe7, 0x7e, 0x48 } }
|
|
|
|
namespace mozilla {
|
|
|
|
class EditorBase;
|
|
class RangeUpdater;
|
|
class TextRangeArray;
|
|
|
|
namespace dom {
|
|
class Text;
|
|
} // namespace dom
|
|
|
|
/**
|
|
* CompositionTransaction stores all edit for a composition, i.e.,
|
|
* from compositionstart event to compositionend event. E.g., inserting a
|
|
* composition string, modifying the composition string or its IME selection
|
|
* ranges and commit or cancel the composition.
|
|
*/
|
|
class CompositionTransaction final : public EditTransactionBase
|
|
{
|
|
public:
|
|
NS_DECLARE_STATIC_IID_ACCESSOR(NS_IMETEXTTXN_IID)
|
|
|
|
/**
|
|
* @param aTextNode The start node of text content.
|
|
* @param aOffset The location in aTextNode to do the insertion.
|
|
* @param aReplaceLength The length of text to replace. 0 means not
|
|
* replacing existing text.
|
|
* @param aTextRangeArray Clauses and/or caret information. This may be
|
|
* null.
|
|
* @param aString The new text to insert.
|
|
* @param aEditorBase Used to get and set the selection.
|
|
* @param aRangeUpdater The range updater
|
|
*/
|
|
CompositionTransaction(dom::Text& aTextNode,
|
|
uint32_t aOffset, uint32_t aReplaceLength,
|
|
TextRangeArray* aTextRangeArray,
|
|
const nsAString& aString,
|
|
EditorBase& aEditorBase,
|
|
RangeUpdater* aRangeUpdater);
|
|
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(CompositionTransaction,
|
|
EditTransactionBase)
|
|
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
NS_DECL_EDITTRANSACTIONBASE
|
|
|
|
NS_IMETHOD Merge(nsITransaction* aTransaction, bool* aDidMerge) override;
|
|
|
|
void MarkFixed();
|
|
|
|
static nsresult SetIMESelection(EditorBase& aEditorBase,
|
|
dom::Text* aTextNode,
|
|
uint32_t aOffsetInNode,
|
|
uint32_t aLengthOfCompositionString,
|
|
const TextRangeArray* aRanges);
|
|
|
|
private:
|
|
~CompositionTransaction();
|
|
|
|
nsresult SetSelectionForRanges();
|
|
|
|
// The text element to operate upon.
|
|
RefPtr<dom::Text> mTextNode;
|
|
|
|
// The offsets into mTextNode where the insertion should be placed.
|
|
uint32_t mOffset;
|
|
|
|
uint32_t mReplaceLength;
|
|
|
|
// The range list.
|
|
RefPtr<TextRangeArray> mRanges;
|
|
|
|
// The text to insert into mTextNode at mOffset.
|
|
nsString mStringToInsert;
|
|
|
|
// The editor, which is used to get the selection controller.
|
|
EditorBase& mEditorBase;
|
|
|
|
RangeUpdater* mRangeUpdater;
|
|
|
|
bool mFixed;
|
|
};
|
|
|
|
NS_DEFINE_STATIC_IID_ACCESSOR(CompositionTransaction, NS_IMETEXTTXN_IID)
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif // #ifndef CompositionTransaction_h
|