TSFEmptyTextStore.h

Enable keyboard shortcuts

/* -*- 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 TSFEmptyTextStore_h

#define TSFEmptyTextStore_h

#include "nsIWidget.h"

#include "nsWindow.h"

#include "TSFTextStoreBase.h"

#include "TSFUtils.h"

#include "WinUtils.h"

#include "WritingModes.h"

#include "mozilla/Attributes.h"

#include "mozilla/Maybe.h"

#include "mozilla/RefPtr.h"

#include "mozilla/StaticPtr.h"

#include "mozilla/TextEventDispatcher.h"

#include "mozilla/TextEvents.h"

#include "mozilla/TextRange.h"

#include "mozilla/widget/IMEData.h"

#include <msctf.h>

#include <textstor.h>

struct ITfThreadMgr;

struct ITfDocumentMgr;

struct ITfDisplayAttributeMgr;

struct ITfCategoryMgr;

class nsWindow;

namespace mozilla::widget {

class TSFEmptyTextStore final : public TSFTextStoreBase {

  friend class TSFStaticSink;

 public: /*IUnknown*/

  STDMETHODIMP QueryInterface(REFIID, void**);

  NS_INLINE_DECL_IUNKNOWN_ADDREF_RELEASE(TSFEmptyTextStore);

 public: /*ITextStoreACP*/

  STDMETHODIMP QueryInsert(LONG, LONG, ULONG, LONG*, LONG*);

  STDMETHODIMP GetSelection(ULONG, ULONG, TS_SELECTION_ACP*, ULONG*);

  STDMETHODIMP SetSelection(ULONG, const TS_SELECTION_ACP*);

  STDMETHODIMP GetText(LONG, LONG, WCHAR*, ULONG, ULONG*, TS_RUNINFO*, ULONG,

                       ULONG*, LONG*);

  STDMETHODIMP SetText(DWORD, LONG, LONG, const WCHAR*, ULONG, TS_TEXTCHANGE*);

  STDMETHODIMP RequestSupportedAttrs(DWORD, ULONG, const TS_ATTRID*);

  STDMETHODIMP RequestAttrsAtPosition(LONG, ULONG, const TS_ATTRID*, DWORD);

  STDMETHODIMP RetrieveRequestedAttrs(ULONG, TS_ATTRVAL*, ULONG*);

  STDMETHODIMP GetEndACP(LONG*);

  STDMETHODIMP GetACPFromPoint(TsViewCookie, const POINT*, DWORD, LONG*);

  STDMETHODIMP GetTextExt(TsViewCookie, LONG, LONG, RECT*, BOOL*);

  STDMETHODIMP InsertTextAtSelection(DWORD, const WCHAR*, ULONG, LONG*, LONG*,

                                     TS_TEXTCHANGE*);

 public:

  [[nodiscard]] IMENotificationRequests GetIMENotificationRequests()

      const final;

  void Destroy() final;

  [[nodiscard]] static Result<RefPtr<TSFEmptyTextStore>, nsresult>

  CreateAndSetFocus(nsWindow* aFocusedWindow, const InputContext& aContext);

  nsresult SetFocusAndUpdateDocumentURLAndBrowsingMode(

      nsWindow* aFocusedWindow, const InputContext& aContext);

 protected:

  TSFEmptyTextStore();

  virtual ~TSFEmptyTextStore();

  bool Init(nsWindow* aWidget, const InputContext& aContext);

  void ReleaseTSFObjects();

  nsresult SetFocus(nsWindow* aFocusedWindow, const InputContext& aContext);

  // This is called immediately after a call of OnLockGranted() of mSink.

  // Note that mLock isn't cleared yet when this is called.

  void DidLockGranted() final {

    mDeferNotifyingTSF = mDeferNotifyingTSFUntilNextUpdate = false;

};

}  // namespace mozilla::widget

#endif  // #ifndef TSFEmptyTextStore_h