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Unified Diff: win8/metro_driver/ime/text_store.h

Issue 1815463002: Remove win8/metro_driver (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: . Created 4 years, 9 months ago
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Index: win8/metro_driver/ime/text_store.h
diff --git a/win8/metro_driver/ime/text_store.h b/win8/metro_driver/ime/text_store.h
deleted file mode 100644
index 123a8245d786f5891fb856d36f931c4b89826531..0000000000000000000000000000000000000000
--- a/win8/metro_driver/ime/text_store.h
+++ /dev/null
@@ -1,316 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef WIN8_METRO_DRIVER_IME_TEXT_STORE_H_
-#define WIN8_METRO_DRIVER_IME_TEXT_STORE_H_
-
-#include <atlbase.h>
-#include <atlcom.h>
-#include <initguid.h>
-#include <inputscope.h>
-#include <msctf.h>
-#include <stdint.h>
-
-#include <deque>
-#include <vector>
-
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/strings/string16.h"
-#include "base/win/scoped_comptr.h"
-#include "ui/metro_viewer/ime_types.h"
-
-namespace metro_driver {
-
-class TextStoreDelegate;
-
-// TextStore is used to interact with the input method via TSF manager.
-// TextStore have a string buffer which is manipulated by TSF manager through
-// ITextStoreACP interface methods such as SetText().
-// When the input method updates the composition, TextStore calls
-// TextInputClient::SetCompositionText(). And when the input method finishes the
-// composition, TextStore calls TextInputClient::InsertText() and clears the
-// buffer.
-//
-// How TextStore works:
-// - The user enters "a".
-// - The input method set composition as "a".
-// - TSF manager calls TextStore::RequestLock().
-// - TextStore callbacks ITextStoreACPSink::OnLockGranted().
-// - In OnLockGranted(), TSF manager calls
-// - TextStore::OnStartComposition()
-// - TextStore::SetText()
-// The string buffer is set as "a".
-// - TextStore::OnUpdateComposition()
-// - TextStore::OnEndEdit()
-// TextStore can get the composition information such as underlines.
-// - TextStore calls TextInputClient::SetCompositionText().
-// "a" is shown with an underline as composition string.
-// - The user enters <space>.
-// - The input method set composition as "A".
-// - TSF manager calls TextStore::RequestLock().
-// - TextStore callbacks ITextStoreACPSink::OnLockGranted().
-// - In OnLockGranted(), TSF manager calls
-// - TextStore::SetText()
-// The string buffer is set as "A".
-// - TextStore::OnUpdateComposition()
-// - TextStore::OnEndEdit()
-// - TextStore calls TextInputClient::SetCompositionText().
-// "A" is shown with an underline as composition string.
-// - The user enters <enter>.
-// - The input method commits "A".
-// - TSF manager calls TextStore::RequestLock().
-// - TextStore callbacks ITextStoreACPSink::OnLockGranted().
-// - In OnLockGranted(), TSF manager calls
-// - TextStore::OnEndComposition()
-// - TextStore::OnEndEdit()
-// TextStore knows "A" is committed.
-// - TextStore calls TextInputClient::InsertText().
-// "A" is shown as committed string.
-// - TextStore clears the string buffer.
-// - TextStore calls OnSelectionChange(), OnLayoutChange() and
-// OnTextChange() of ITextStoreACPSink to let TSF manager know that the
-// string buffer has been changed.
-//
-// About the locking scheme:
-// When TSF manager manipulates the string buffer it calls RequestLock() to get
-// the lock of the document. If TextStore can grant the lock request, it
-// callbacks ITextStoreACPSink::OnLockGranted().
-// RequestLock() is called from only one thread, but called recursively in
-// OnLockGranted() or OnSelectionChange() or OnLayoutChange() or OnTextChange().
-// If the document is locked and the lock request is asynchronous, TextStore
-// queues the request. The queued requests will be handled after the current
-// lock is removed.
-// More information about document locks can be found here:
-// http://msdn.microsoft.com/en-us/library/ms538064
-//
-// More information about TSF can be found here:
-// http://msdn.microsoft.com/en-us/library/ms629032
-class ATL_NO_VTABLE TextStore
- : public CComObjectRootEx<CComMultiThreadModel>,
- public ITextStoreACP,
- public ITfContextOwnerCompositionSink,
- public ITfTextEditSink {
- public:
- virtual ~TextStore();
-
- BEGIN_COM_MAP(TextStore)
- COM_INTERFACE_ENTRY(ITextStoreACP)
- COM_INTERFACE_ENTRY(ITfContextOwnerCompositionSink)
- COM_INTERFACE_ENTRY(ITfTextEditSink)
- END_COM_MAP()
-
- // ITextStoreACP:
- STDMETHOD(AdviseSink)(REFIID iid, IUnknown* unknown, DWORD mask) override;
- STDMETHOD(FindNextAttrTransition)(LONG acp_start,
- LONG acp_halt,
- ULONG num_filter_attributes,
- const TS_ATTRID* filter_attributes,
- DWORD flags,
- LONG* acp_next,
- BOOL* found,
- LONG* found_offset) override;
- STDMETHOD(GetACPFromPoint)(TsViewCookie view_cookie,
- const POINT* point,
- DWORD flags,
- LONG* acp) override;
- STDMETHOD(GetActiveView)(TsViewCookie* view_cookie) override;
- STDMETHOD(GetEmbedded)(LONG acp_pos,
- REFGUID service,
- REFIID iid,
- IUnknown** unknown) override;
- STDMETHOD(GetEndACP)(LONG* acp) override;
- STDMETHOD(GetFormattedText)(LONG acp_start,
- LONG acp_end,
- IDataObject** data_object) override;
- STDMETHOD(GetScreenExt)(TsViewCookie view_cookie, RECT* rect) override;
- STDMETHOD(GetSelection)(ULONG selection_index,
- ULONG selection_buffer_size,
- TS_SELECTION_ACP* selection_buffer,
- ULONG* fetched_count) override;
- STDMETHOD(GetStatus)(TS_STATUS* pdcs) override;
- STDMETHOD(GetText)(LONG acp_start,
- LONG acp_end,
- wchar_t* text_buffer,
- ULONG text_buffer_size,
- ULONG* text_buffer_copied,
- TS_RUNINFO* run_info_buffer,
- ULONG run_info_buffer_size,
- ULONG* run_info_buffer_copied,
- LONG* next_acp) override;
- STDMETHOD(GetTextExt)(TsViewCookie view_cookie,
- LONG acp_start,
- LONG acp_end,
- RECT* rect,
- BOOL* clipped) override;
- STDMETHOD(GetWnd)(TsViewCookie view_cookie, HWND* window_handle) override;
- STDMETHOD(InsertEmbedded)(DWORD flags,
- LONG acp_start,
- LONG acp_end,
- IDataObject* data_object,
- TS_TEXTCHANGE* change) override;
- STDMETHOD(InsertEmbeddedAtSelection)(DWORD flags,
- IDataObject* data_object,
- LONG* acp_start,
- LONG* acp_end,
- TS_TEXTCHANGE* change) override;
- STDMETHOD(InsertTextAtSelection)(DWORD flags,
- const wchar_t* text_buffer,
- ULONG text_buffer_size,
- LONG* acp_start,
- LONG* acp_end,
- TS_TEXTCHANGE* text_change) override;
- STDMETHOD(QueryInsert)(LONG acp_test_start,
- LONG acp_test_end,
- ULONG text_size,
- LONG* acp_result_start,
- LONG* acp_result_end) override;
- STDMETHOD(QueryInsertEmbedded)(const GUID* service,
- const FORMATETC* format,
- BOOL* insertable) override;
- STDMETHOD(RequestAttrsAtPosition)(LONG acp_pos,
- ULONG attribute_buffer_size,
- const TS_ATTRID* attribute_buffer,
- DWORD flags) override;
- STDMETHOD(RequestAttrsTransitioningAtPosition)(
- LONG acp_pos,
- ULONG attribute_buffer_size,
- const TS_ATTRID* attribute_buffer,
- DWORD flags) override;
- STDMETHOD(RequestLock)(DWORD lock_flags, HRESULT* result) override;
- STDMETHOD(RequestSupportedAttrs)(DWORD flags,
- ULONG attribute_buffer_size,
- const TS_ATTRID* attribute_buffer) override;
- STDMETHOD(RetrieveRequestedAttrs)(ULONG attribute_buffer_size,
- TS_ATTRVAL* attribute_buffer,
- ULONG* attribute_buffer_copied) override;
- STDMETHOD(SetSelection)(ULONG selection_buffer_size,
- const TS_SELECTION_ACP* selection_buffer) override;
- STDMETHOD(SetText)(DWORD flags,
- LONG acp_start,
- LONG acp_end,
- const wchar_t* text_buffer,
- ULONG text_buffer_size,
- TS_TEXTCHANGE* text_change) override;
- STDMETHOD(UnadviseSink)(IUnknown* unknown) override;
-
- // ITfContextOwnerCompositionSink:
- STDMETHOD(OnStartComposition)(ITfCompositionView* composition_view,
- BOOL* ok) override;
- STDMETHOD(OnUpdateComposition)(ITfCompositionView* composition_view,
- ITfRange* range) override;
- STDMETHOD(OnEndComposition)(ITfCompositionView* composition_view) override;
-
- // ITfTextEditSink:
- STDMETHOD(OnEndEdit)(ITfContext* context, TfEditCookie read_only_edit_cookie,
- ITfEditRecord* edit_record) override;
-
- // Cancels the ongoing composition if exists.
- bool CancelComposition();
-
- // Confirms the ongoing composition if exists.
- bool ConfirmComposition();
-
- // Sends OnLayoutChange() via |text_store_acp_sink_|.
- void SendOnLayoutChange();
-
- // Creates an instance of TextStore. Returns NULL if fails.
- static scoped_refptr<TextStore> Create(
- HWND window_handle,
- const std::vector<InputScope>& input_scopes,
- TextStoreDelegate* delegate);
-
- private:
- friend CComObject<TextStore>;
- TextStore();
-
- void Initialize(HWND window_handle,
- ITfCategoryMgr* category_manager,
- ITfDisplayAttributeMgr* display_attribute_manager,
- ITfInputScope* input_scope,
- TextStoreDelegate* delegate);
-
- // Checks if the document has a read-only lock.
- bool HasReadLock() const;
-
- // Checks if the document has a read and write lock.
- bool HasReadWriteLock() const;
-
- // Gets the display attribute structure.
- bool GetDisplayAttribute(TfGuidAtom guid_atom,
- TF_DISPLAYATTRIBUTE* attribute);
-
- // Gets the committed string size and underline information of the context.
- bool GetCompositionStatus(
- ITfContext* context,
- const TfEditCookie read_only_edit_cookie,
- uint32_t* committed_size,
- std::vector<metro_viewer::UnderlineInfo>* undelines);
-
- // A pointer of ITextStoreACPSink, this instance is given in AdviseSink.
- base::win::ScopedComPtr<ITextStoreACPSink> text_store_acp_sink_;
-
- // The current mask of |text_store_acp_sink_|.
- DWORD text_store_acp_sink_mask_;
-
- // HWND of the attached window.
- HWND window_handle_;
-
- // |string_buffer_| contains committed string and composition string.
- // Example: "aoi" is committed, and "umi" is under composition.
- // |string_buffer_|: "aoiumi"
- // |committed_size_|: 3
- base::string16 string_buffer_;
- uint32_t committed_size_;
-
- // |selection_start_| and |selection_end_| indicates the selection range.
- // Example: "iue" is selected
- // |string_buffer_|: "aiueo"
- // |selection_start_|: 1
- // |selection_end_|: 4
- uint32_t selection_start_;
- uint32_t selection_end_;
-
- // |start_offset| and |end_offset| of |composition_undelines_| indicates
- // the offsets in |string_buffer_|.
- // Example: "aoi" is committed. There are two underlines in "umi" and "no".
- // |string_buffer_|: "aoiumino"
- // |committed_size_|: 3
- // underlines_[0].start_offset: 3
- // underlines_[0].end_offset: 6
- // underlines_[1].start_offset: 6
- // underlines_[1].end_offset: 8
- std::vector<metro_viewer::UnderlineInfo> underlines_;
-
- // |edit_flag_| indicates that the status is edited during
- // ITextStoreACPSink::OnLockGranted().
- bool edit_flag_;
-
- // The type of current lock.
- // 0: No lock.
- // TS_LF_READ: read-only lock.
- // TS_LF_READWRITE: read/write lock.
- DWORD current_lock_type_;
-
- // Queue of the lock request used in RequestLock().
- std::deque<DWORD> lock_queue_;
-
- // Category manager and Display attribute manager are used to obtain the
- // attributes of the composition string.
- base::win::ScopedComPtr<ITfCategoryMgr> category_manager_;
- base::win::ScopedComPtr<ITfDisplayAttributeMgr> display_attribute_manager_;
-
- // Represents the context information of this text.
- base::win::ScopedComPtr<ITfInputScope> input_scope_;
-
- // The delegate attached to this text store.
- TextStoreDelegate* delegate_;
-
- DISALLOW_COPY_AND_ASSIGN(TextStore);
-};
-
-} // namespace metro_driver
-
-#endif // WIN8_METRO_DRIVER_IME_TEXT_STORE_H_
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