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Unified Diff: ui/base/ime/win/tsf_text_store.cc

Issue 149073009: Remove InputMethodTSF, TSFEventRouter, TSFTextStore, TSFBridge (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: revert input_method_imm32 changes Created 6 years, 11 months ago
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Index: ui/base/ime/win/tsf_text_store.cc
diff --git a/ui/base/ime/win/tsf_text_store.cc b/ui/base/ime/win/tsf_text_store.cc
deleted file mode 100644
index aa55faefb1daac4429a59789040fdf2e8190cf34..0000000000000000000000000000000000000000
--- a/ui/base/ime/win/tsf_text_store.cc
+++ /dev/null
@@ -1,924 +0,0 @@
-// Copyright (c) 2012 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.
-
-#define INITGUID // required for GUID_PROP_INPUTSCOPE
-#include "ui/base/ime/win/tsf_text_store.h"
-
-#include <InputScope.h>
-#include <OleCtl.h>
-
-#include <algorithm>
-
-#include "base/win/scoped_variant.h"
-#include "ui/base/ime/text_input_client.h"
-#include "ui/base/ime/win/tsf_input_scope.h"
-#include "ui/gfx/rect.h"
-
-namespace ui {
-namespace {
-
-// We support only one view.
-const TsViewCookie kViewCookie = 1;
-
-} // namespace
-
-TSFTextStore::TSFTextStore()
- : ref_count_(0),
- text_store_acp_sink_mask_(0),
- window_handle_(NULL),
- text_input_client_(NULL),
- committed_size_(0),
- edit_flag_(false),
- current_lock_type_(0) {
- if (FAILED(category_manager_.CreateInstance(CLSID_TF_CategoryMgr))) {
- LOG(FATAL) << "Failed to initialize CategoryMgr.";
- return;
- }
- if (FAILED(display_attribute_manager_.CreateInstance(
- CLSID_TF_DisplayAttributeMgr))) {
- LOG(FATAL) << "Failed to initialize DisplayAttributeMgr.";
- return;
- }
-}
-
-TSFTextStore::~TSFTextStore() {
-}
-
-ULONG STDMETHODCALLTYPE TSFTextStore::AddRef() {
- return InterlockedIncrement(&ref_count_);
-}
-
-ULONG STDMETHODCALLTYPE TSFTextStore::Release() {
- const LONG count = InterlockedDecrement(&ref_count_);
- if (!count) {
- delete this;
- return 0;
- }
- return static_cast<ULONG>(count);
-}
-
-STDMETHODIMP TSFTextStore::QueryInterface(REFIID iid, void** result) {
- if (iid == IID_IUnknown || iid == IID_ITextStoreACP) {
- *result = static_cast<ITextStoreACP*>(this);
- } else if (iid == IID_ITfContextOwnerCompositionSink) {
- *result = static_cast<ITfContextOwnerCompositionSink*>(this);
- } else if (iid == IID_ITfTextEditSink) {
- *result = static_cast<ITfTextEditSink*>(this);
- } else {
- *result = NULL;
- return E_NOINTERFACE;
- }
- AddRef();
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::AdviseSink(REFIID iid,
- IUnknown* unknown,
- DWORD mask) {
- if (!IsEqualGUID(iid, IID_ITextStoreACPSink))
- return E_INVALIDARG;
- if (text_store_acp_sink_) {
- if (text_store_acp_sink_.IsSameObject(unknown)) {
- text_store_acp_sink_mask_ = mask;
- return S_OK;
- } else {
- return CONNECT_E_ADVISELIMIT;
- }
- }
- if (FAILED(text_store_acp_sink_.QueryFrom(unknown)))
- return E_UNEXPECTED;
- text_store_acp_sink_mask_ = mask;
-
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::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) {
- if (!acp_next || !found || !found_offset)
- return E_INVALIDARG;
- // We don't support any attributes.
- // So we always return "not found".
- *acp_next = 0;
- *found = FALSE;
- *found_offset = 0;
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::GetACPFromPoint(TsViewCookie view_cookie,
- const POINT* point,
- DWORD flags,
- LONG* acp) {
- NOTIMPLEMENTED();
- if (view_cookie != kViewCookie)
- return E_INVALIDARG;
- return E_NOTIMPL;
-}
-
-STDMETHODIMP TSFTextStore::GetActiveView(TsViewCookie* view_cookie) {
- if (!view_cookie)
- return E_INVALIDARG;
- // We support only one view.
- *view_cookie = kViewCookie;
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::GetEmbedded(LONG acp_pos,
- REFGUID service,
- REFIID iid,
- IUnknown** unknown) {
- // We don't support any embedded objects.
- NOTIMPLEMENTED();
- if (!unknown)
- return E_INVALIDARG;
- *unknown = NULL;
- return E_NOTIMPL;
-}
-
-STDMETHODIMP TSFTextStore::GetEndACP(LONG* acp) {
- if (!acp)
- return E_INVALIDARG;
- if (!HasReadLock())
- return TS_E_NOLOCK;
- *acp = string_buffer_.size();
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::GetFormattedText(LONG acp_start, LONG acp_end,
- IDataObject** data_object) {
- NOTIMPLEMENTED();
- return E_NOTIMPL;
-}
-
-STDMETHODIMP TSFTextStore::GetScreenExt(TsViewCookie view_cookie, RECT* rect) {
- if (view_cookie != kViewCookie)
- return E_INVALIDARG;
- if (!rect)
- return E_INVALIDARG;
-
- // {0, 0, 0, 0} means that the document rect is not currently displayed.
- SetRect(rect, 0, 0, 0, 0);
-
- if (!IsWindow(window_handle_))
- return E_FAIL;
-
- // Currently ui::TextInputClient does not expose the document rect. So use
- // the Win32 client rectangle instead.
- // TODO(yukawa): Upgrade TextInputClient so that the client can retrieve the
- // document rectangle.
- RECT client_rect = {};
- if (!GetClientRect(window_handle_, &client_rect))
- return E_FAIL;
- POINT left_top = {client_rect.left, client_rect.top};
- POINT right_bottom = {client_rect.right, client_rect.bottom};
- if (!ClientToScreen(window_handle_, &left_top))
- return E_FAIL;
- if (!ClientToScreen(window_handle_, &right_bottom))
- return E_FAIL;
-
- rect->left = left_top.x;
- rect->top = left_top.y;
- rect->right = right_bottom.x;
- rect->bottom = right_bottom.y;
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::GetSelection(ULONG selection_index,
- ULONG selection_buffer_size,
- TS_SELECTION_ACP* selection_buffer,
- ULONG* fetched_count) {
- if (!selection_buffer)
- return E_INVALIDARG;
- if (!fetched_count)
- return E_INVALIDARG;
- if (!HasReadLock())
- return TS_E_NOLOCK;
- *fetched_count = 0;
- if ((selection_buffer_size > 0) &&
- ((selection_index == 0) || (selection_index == TS_DEFAULT_SELECTION))) {
- selection_buffer[0].acpStart = selection_.start();
- selection_buffer[0].acpEnd = selection_.end();
- selection_buffer[0].style.ase = TS_AE_END;
- selection_buffer[0].style.fInterimChar = FALSE;
- *fetched_count = 1;
- }
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::GetStatus(TS_STATUS* status) {
- if (!status)
- return E_INVALIDARG;
-
- status->dwDynamicFlags = 0;
- // We use transitory contexts and we don't support hidden text.
- status->dwStaticFlags = TS_SS_TRANSITORY | TS_SS_NOHIDDENTEXT;
-
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::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) {
- if (!text_buffer_copied || !run_info_buffer_copied)
- return E_INVALIDARG;
- if (!text_buffer && text_buffer_size != 0)
- return E_INVALIDARG;
- if (!run_info_buffer && run_info_buffer_size != 0)
- return E_INVALIDARG;
- if (!next_acp)
- return E_INVALIDARG;
- if (!HasReadLock())
- return TF_E_NOLOCK;
- const LONG string_buffer_size = string_buffer_.size();
- if (acp_end == -1)
- acp_end = string_buffer_size;
- if (!((0 <= acp_start) &&
- (acp_start <= acp_end) &&
- (acp_end <= string_buffer_size))) {
- return TF_E_INVALIDPOS;
- }
- acp_end = std::min(acp_end, acp_start + static_cast<LONG>(text_buffer_size));
- *text_buffer_copied = acp_end - acp_start;
-
- const base::string16& result =
- string_buffer_.substr(acp_start, *text_buffer_copied);
- for (size_t i = 0; i < result.size(); ++i) {
- text_buffer[i] = result[i];
- }
-
- if (run_info_buffer_size) {
- run_info_buffer[0].uCount = *text_buffer_copied;
- run_info_buffer[0].type = TS_RT_PLAIN;
- *run_info_buffer_copied = 1;
- }
-
- *next_acp = acp_end;
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::GetTextExt(TsViewCookie view_cookie,
- LONG acp_start,
- LONG acp_end,
- RECT* rect,
- BOOL* clipped) {
- if (!rect || !clipped)
- return E_INVALIDARG;
- if (!text_input_client_)
- return E_UNEXPECTED;
- if (view_cookie != kViewCookie)
- return E_INVALIDARG;
- if (!HasReadLock())
- return TS_E_NOLOCK;
- if (!((static_cast<LONG>(committed_size_) <= acp_start) &&
- (acp_start <= acp_end) &&
- (acp_end <= static_cast<LONG>(string_buffer_.size())))) {
- return TS_E_INVALIDPOS;
- }
-
- // According to a behavior of notepad.exe and wordpad.exe, top left corner of
- // rect indicates a first character's one, and bottom right corner of rect
- // indicates a last character's one.
- // We use RECT instead of gfx::Rect since left position may be bigger than
- // right position when composition has multiple lines.
- RECT result;
- gfx::Rect tmp_rect;
- const uint32 start_pos = acp_start - committed_size_;
- const uint32 end_pos = acp_end - committed_size_;
-
- if (start_pos == end_pos) {
- // According to MSDN document, if |acp_start| and |acp_end| are equal it is
- // OK to just return E_INVALIDARG.
- // http://msdn.microsoft.com/en-us/library/ms538435
- // But when using Pinin IME of Windows 8, this method is called with the
- // equal values of |acp_start| and |acp_end|. So we handle this condition.
- if (start_pos == 0) {
- if (text_input_client_->GetCompositionCharacterBounds(0, &tmp_rect)) {
- tmp_rect.set_width(0);
- result = tmp_rect.ToRECT();
- } else if (string_buffer_.size() == committed_size_) {
- result = text_input_client_->GetCaretBounds().ToRECT();
- } else {
- return TS_E_NOLAYOUT;
- }
- } else if (text_input_client_->GetCompositionCharacterBounds(start_pos - 1,
- &tmp_rect)) {
- result.left = tmp_rect.right();
- result.right = tmp_rect.right();
- result.top = tmp_rect.y();
- result.bottom = tmp_rect.bottom();
- } else {
- return TS_E_NOLAYOUT;
- }
- } else {
- if (text_input_client_->GetCompositionCharacterBounds(start_pos,
- &tmp_rect)) {
- result.left = tmp_rect.x();
- result.top = tmp_rect.y();
- result.right = tmp_rect.right();
- result.bottom = tmp_rect.bottom();
- if (text_input_client_->GetCompositionCharacterBounds(end_pos - 1,
- &tmp_rect)) {
- result.right = tmp_rect.right();
- result.bottom = tmp_rect.bottom();
- } else {
- // We may not be able to get the last character bounds, so we use the
- // first character bounds instead of returning TS_E_NOLAYOUT.
- }
- } else {
- // Hack for PPAPI flash. PPAPI flash does not support GetCaretBounds, so
- // it's better to return previous caret rectangle instead.
- // TODO(nona, kinaba): Remove this hack.
- if (start_pos == 0) {
- result = text_input_client_->GetCaretBounds().ToRECT();
- } else {
- return TS_E_NOLAYOUT;
- }
- }
- }
-
- *rect = result;
- *clipped = FALSE;
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::GetWnd(TsViewCookie view_cookie,
- HWND* window_handle) {
- if (!window_handle)
- return E_INVALIDARG;
- if (view_cookie != kViewCookie)
- return E_INVALIDARG;
- *window_handle = window_handle_;
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::InsertEmbedded(DWORD flags,
- LONG acp_start,
- LONG acp_end,
- IDataObject* data_object,
- TS_TEXTCHANGE* change) {
- // We don't support any embedded objects.
- NOTIMPLEMENTED();
- return E_NOTIMPL;
-}
-
-STDMETHODIMP TSFTextStore::InsertEmbeddedAtSelection(DWORD flags,
- IDataObject* data_object,
- LONG* acp_start,
- LONG* acp_end,
- TS_TEXTCHANGE* change) {
- // We don't support any embedded objects.
- NOTIMPLEMENTED();
- return E_NOTIMPL;
-}
-
-STDMETHODIMP TSFTextStore::InsertTextAtSelection(DWORD flags,
- const wchar_t* text_buffer,
- ULONG text_buffer_size,
- LONG* acp_start,
- LONG* acp_end,
- TS_TEXTCHANGE* text_change) {
- const LONG start_pos = selection_.start();
- const LONG end_pos = selection_.end();
- const LONG new_end_pos = start_pos + text_buffer_size;
-
- if (flags & TS_IAS_QUERYONLY) {
- if (!HasReadLock())
- return TS_E_NOLOCK;
- if (acp_start)
- *acp_start = start_pos;
- if (acp_end) {
- *acp_end = end_pos;
- }
- return S_OK;
- }
-
- if (!HasReadWriteLock())
- return TS_E_NOLOCK;
- if (!text_buffer)
- return E_INVALIDARG;
-
- DCHECK_LE(start_pos, end_pos);
- string_buffer_ = string_buffer_.substr(0, start_pos) +
- base::string16(text_buffer, text_buffer + text_buffer_size) +
- string_buffer_.substr(end_pos);
- if (acp_start)
- *acp_start = start_pos;
- if (acp_end)
- *acp_end = new_end_pos;
- if (text_change) {
- text_change->acpStart = start_pos;
- text_change->acpOldEnd = end_pos;
- text_change->acpNewEnd = new_end_pos;
- }
- selection_.set_start(start_pos);
- selection_.set_end(new_end_pos);
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::QueryInsert(
- LONG acp_test_start,
- LONG acp_test_end,
- ULONG text_size,
- LONG* acp_result_start,
- LONG* acp_result_end) {
- if (!acp_result_start || !acp_result_end || acp_test_start > acp_test_end)
- return E_INVALIDARG;
- const LONG committed_size = static_cast<LONG>(committed_size_);
- const LONG buffer_size = static_cast<LONG>(string_buffer_.size());
- *acp_result_start = std::min(std::max(committed_size, acp_test_start),
- buffer_size);
- *acp_result_end = std::min(std::max(committed_size, acp_test_end),
- buffer_size);
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::QueryInsertEmbedded(const GUID* service,
- const FORMATETC* format,
- BOOL* insertable) {
- if (!format)
- return E_INVALIDARG;
- // We don't support any embedded objects.
- if (insertable)
- *insertable = FALSE;
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::RequestAttrsAtPosition(
- LONG acp_pos,
- ULONG attribute_buffer_size,
- const TS_ATTRID* attribute_buffer,
- DWORD flags) {
- // We don't support any document attributes.
- // This method just returns S_OK, and the subsequently called
- // RetrieveRequestedAttrs() returns 0 as the number of supported attributes.
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::RequestAttrsTransitioningAtPosition(
- LONG acp_pos,
- ULONG attribute_buffer_size,
- const TS_ATTRID* attribute_buffer,
- DWORD flags) {
- // We don't support any document attributes.
- // This method just returns S_OK, and the subsequently called
- // RetrieveRequestedAttrs() returns 0 as the number of supported attributes.
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::RequestLock(DWORD lock_flags, HRESULT* result) {
- if (!text_store_acp_sink_.get())
- return E_FAIL;
- if (!result)
- return E_INVALIDARG;
-
- if (current_lock_type_ != 0) {
- if (lock_flags & TS_LF_SYNC) {
- // Can't lock synchronously.
- *result = TS_E_SYNCHRONOUS;
- return S_OK;
- }
- // Queue the lock request.
- lock_queue_.push_back(lock_flags & TS_LF_READWRITE);
- *result = TS_S_ASYNC;
- return S_OK;
- }
-
- // Lock
- current_lock_type_ = (lock_flags & TS_LF_READWRITE);
-
- edit_flag_ = false;
- const size_t last_committed_size = committed_size_;
-
- // Grant the lock.
- *result = text_store_acp_sink_->OnLockGranted(current_lock_type_);
-
- // Unlock
- current_lock_type_ = 0;
-
- // Handles the pending lock requests.
- while (!lock_queue_.empty()) {
- current_lock_type_ = lock_queue_.front();
- lock_queue_.pop_front();
- text_store_acp_sink_->OnLockGranted(current_lock_type_);
- current_lock_type_ = 0;
- }
-
- if (!edit_flag_) {
- return S_OK;
- }
-
- // If the text store is edited in OnLockGranted(), we may need to call
- // TextInputClient::InsertText() or TextInputClient::SetCompositionText().
- const size_t new_committed_size = committed_size_;
- const base::string16& new_committed_string =
- string_buffer_.substr(last_committed_size,
- new_committed_size - last_committed_size);
- const base::string16& composition_string =
- string_buffer_.substr(new_committed_size);
-
- // If there is new committed string, calls TextInputClient::InsertText().
- if ((!new_committed_string.empty()) && text_input_client_) {
- text_input_client_->InsertText(new_committed_string);
- }
-
- // Calls TextInputClient::SetCompositionText().
- CompositionText composition_text;
- composition_text.text = composition_string;
- composition_text.underlines = composition_undelines_;
- // Adjusts the offset.
- for (size_t i = 0; i < composition_text.underlines.size(); ++i) {
- composition_text.underlines[i].start_offset -= new_committed_size;
- composition_text.underlines[i].end_offset -= new_committed_size;
- }
- if (selection_.start() < new_committed_size) {
- composition_text.selection.set_start(0);
- } else {
- composition_text.selection.set_start(
- selection_.start() - new_committed_size);
- }
- if (selection_.end() < new_committed_size) {
- composition_text.selection.set_end(0);
- } else {
- composition_text.selection.set_end(selection_.end() - new_committed_size);
- }
- if (text_input_client_)
- text_input_client_->SetCompositionText(composition_text);
-
- // If there is no composition string, clear the text store status.
- // And call OnSelectionChange(), OnLayoutChange(), and OnTextChange().
- if ((composition_string.empty()) && (new_committed_size != 0)) {
- string_buffer_.clear();
- committed_size_ = 0;
- selection_.set_start(0);
- selection_.set_end(0);
- if (text_store_acp_sink_mask_ & TS_AS_SEL_CHANGE)
- text_store_acp_sink_->OnSelectionChange();
- if (text_store_acp_sink_mask_ & TS_AS_LAYOUT_CHANGE)
- text_store_acp_sink_->OnLayoutChange(TS_LC_CHANGE, 0);
- if (text_store_acp_sink_mask_ & TS_AS_TEXT_CHANGE) {
- TS_TEXTCHANGE textChange;
- textChange.acpStart = 0;
- textChange.acpOldEnd = new_committed_size;
- textChange.acpNewEnd = 0;
- text_store_acp_sink_->OnTextChange(0, &textChange);
- }
- }
-
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::RequestSupportedAttrs(
- DWORD /* flags */, // Seems that we should ignore this.
- ULONG attribute_buffer_size,
- const TS_ATTRID* attribute_buffer) {
- if (!attribute_buffer)
- return E_INVALIDARG;
- if (!text_input_client_)
- return E_FAIL;
- // We support only input scope attribute.
- for (size_t i = 0; i < attribute_buffer_size; ++i) {
- if (IsEqualGUID(GUID_PROP_INPUTSCOPE, attribute_buffer[i]))
- return S_OK;
- }
- return E_FAIL;
-}
-
-STDMETHODIMP TSFTextStore::RetrieveRequestedAttrs(
- ULONG attribute_buffer_size,
- TS_ATTRVAL* attribute_buffer,
- ULONG* attribute_buffer_copied) {
- if (!attribute_buffer_copied)
- return E_INVALIDARG;
- if (!attribute_buffer)
- return E_INVALIDARG;
- if (!text_input_client_)
- return E_UNEXPECTED;
- // We support only input scope attribute.
- *attribute_buffer_copied = 0;
- if (attribute_buffer_size == 0)
- return S_OK;
-
- attribute_buffer[0].dwOverlapId = 0;
- attribute_buffer[0].idAttr = GUID_PROP_INPUTSCOPE;
- attribute_buffer[0].varValue.vt = VT_UNKNOWN;
- attribute_buffer[0].varValue.punkVal = tsf_inputscope::CreateInputScope(
- text_input_client_->GetTextInputType(),
- text_input_client_->GetTextInputMode());
- attribute_buffer[0].varValue.punkVal->AddRef();
- *attribute_buffer_copied = 1;
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::SetSelection(
- ULONG selection_buffer_size,
- const TS_SELECTION_ACP* selection_buffer) {
- if (!HasReadWriteLock())
- return TF_E_NOLOCK;
- if (selection_buffer_size > 0) {
- const LONG start_pos = selection_buffer[0].acpStart;
- const LONG end_pos = selection_buffer[0].acpEnd;
- if (!((static_cast<LONG>(committed_size_) <= start_pos) &&
- (start_pos <= end_pos) &&
- (end_pos <= static_cast<LONG>(string_buffer_.size())))) {
- return TF_E_INVALIDPOS;
- }
- selection_.set_start(start_pos);
- selection_.set_end(end_pos);
- }
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::SetText(DWORD flags,
- LONG acp_start,
- LONG acp_end,
- const wchar_t* text_buffer,
- ULONG text_buffer_size,
- TS_TEXTCHANGE* text_change) {
- if (!HasReadWriteLock())
- return TS_E_NOLOCK;
- if (!((static_cast<LONG>(committed_size_) <= acp_start) &&
- (acp_start <= acp_end) &&
- (acp_end <= static_cast<LONG>(string_buffer_.size())))) {
- return TS_E_INVALIDPOS;
- }
-
- TS_SELECTION_ACP selection;
- selection.acpStart = acp_start;
- selection.acpEnd = acp_end;
- selection.style.ase = TS_AE_NONE;
- selection.style.fInterimChar = 0;
-
- HRESULT ret;
- ret = SetSelection(1, &selection);
- if (ret != S_OK)
- return ret;
-
- TS_TEXTCHANGE change;
- ret = InsertTextAtSelection(0, text_buffer, text_buffer_size,
- &acp_start, &acp_end, &change);
- if (ret != S_OK)
- return ret;
-
- if (text_change)
- *text_change = change;
-
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::UnadviseSink(IUnknown* unknown) {
- if (!text_store_acp_sink_.IsSameObject(unknown))
- return CONNECT_E_NOCONNECTION;
- text_store_acp_sink_.Release();
- text_store_acp_sink_mask_ = 0;
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::OnStartComposition(
- ITfCompositionView* composition_view,
- BOOL* ok) {
- if (ok)
- *ok = TRUE;
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::OnUpdateComposition(
- ITfCompositionView* composition_view,
- ITfRange* range) {
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::OnEndComposition(
- ITfCompositionView* composition_view) {
- return S_OK;
-}
-
-STDMETHODIMP TSFTextStore::OnEndEdit(ITfContext* context,
- TfEditCookie read_only_edit_cookie,
- ITfEditRecord* edit_record) {
- if (!context || !edit_record)
- return E_INVALIDARG;
-
- size_t committed_size;
- CompositionUnderlines undelines;
- if (!GetCompositionStatus(context, read_only_edit_cookie, &committed_size,
- &undelines)) {
- return S_OK;
- }
- composition_undelines_ = undelines;
- committed_size_ = committed_size;
- edit_flag_ = true;
- return S_OK;
-}
-
-bool TSFTextStore::GetDisplayAttribute(TfGuidAtom guid_atom,
- TF_DISPLAYATTRIBUTE* attribute) {
- GUID guid;
- if (FAILED(category_manager_->GetGUID(guid_atom, &guid)))
- return false;
-
- base::win::ScopedComPtr<ITfDisplayAttributeInfo> display_attribute_info;
- if (FAILED(display_attribute_manager_->GetDisplayAttributeInfo(
- guid, display_attribute_info.Receive(), NULL))) {
- return false;
- }
- return SUCCEEDED(display_attribute_info->GetAttributeInfo(attribute));
-}
-
-bool TSFTextStore::GetCompositionStatus(
- ITfContext* context,
- const TfEditCookie read_only_edit_cookie,
- size_t* committed_size,
- CompositionUnderlines* undelines) {
- DCHECK(context);
- DCHECK(committed_size);
- DCHECK(undelines);
- const GUID* rgGuids[2] = {&GUID_PROP_COMPOSING, &GUID_PROP_ATTRIBUTE};
- base::win::ScopedComPtr<ITfReadOnlyProperty> track_property;
- if (FAILED(context->TrackProperties(rgGuids, 2, NULL, 0,
- track_property.Receive()))) {
- return false;
- }
-
- *committed_size = 0;
- undelines->clear();
- base::win::ScopedComPtr<ITfRange> start_to_end_range;
- base::win::ScopedComPtr<ITfRange> end_range;
- if (FAILED(context->GetStart(read_only_edit_cookie,
- start_to_end_range.Receive()))) {
- return false;
- }
- if (FAILED(context->GetEnd(read_only_edit_cookie, end_range.Receive())))
- return false;
- if (FAILED(start_to_end_range->ShiftEndToRange(read_only_edit_cookie,
- end_range, TF_ANCHOR_END))) {
- return false;
- }
-
- base::win::ScopedComPtr<IEnumTfRanges> ranges;
- if (FAILED(track_property->EnumRanges(read_only_edit_cookie, ranges.Receive(),
- start_to_end_range))) {
- return false;
- }
-
- while (true) {
- base::win::ScopedComPtr<ITfRange> range;
- if (ranges->Next(1, range.Receive(), NULL) != S_OK)
- break;
- base::win::ScopedVariant value;
- base::win::ScopedComPtr<IEnumTfPropertyValue> enum_prop_value;
- if (FAILED(track_property->GetValue(read_only_edit_cookie, range,
- value.Receive()))) {
- return false;
- }
- if (FAILED(enum_prop_value.QueryFrom(value.AsInput()->punkVal)))
- return false;
-
- TF_PROPERTYVAL property_value;
- bool is_composition = false;
- bool has_display_attribute = false;
- TF_DISPLAYATTRIBUTE display_attribute;
- while (enum_prop_value->Next(1, &property_value, NULL) == S_OK) {
- if (IsEqualGUID(property_value.guidId, GUID_PROP_COMPOSING)) {
- is_composition = (property_value.varValue.lVal == TRUE);
- } else if (IsEqualGUID(property_value.guidId, GUID_PROP_ATTRIBUTE)) {
- TfGuidAtom guid_atom =
- static_cast<TfGuidAtom>(property_value.varValue.lVal);
- if (GetDisplayAttribute(guid_atom, &display_attribute))
- has_display_attribute = true;
- }
- VariantClear(&property_value.varValue);
- }
-
- base::win::ScopedComPtr<ITfRangeACP> range_acp;
- range_acp.QueryFrom(range);
- LONG start_pos, length;
- range_acp->GetExtent(&start_pos, &length);
- if (!is_composition) {
- if (*committed_size < static_cast<size_t>(start_pos + length))
- *committed_size = start_pos + length;
- } else {
- CompositionUnderline underline;
- underline.start_offset = start_pos;
- underline.end_offset = start_pos + length;
- underline.color = SK_ColorBLACK;
- if (has_display_attribute)
- underline.thick = !!display_attribute.fBoldLine;
- undelines->push_back(underline);
- }
- }
- return true;
-}
-
-void TSFTextStore::SetFocusedTextInputClient(
- HWND focused_window,
- TextInputClient* text_input_client) {
- window_handle_ = focused_window;
- text_input_client_ = text_input_client;
-}
-
-void TSFTextStore::RemoveFocusedTextInputClient(
- TextInputClient* text_input_client) {
- if (text_input_client_ == text_input_client) {
- window_handle_ = NULL;
- text_input_client_ = NULL;
- }
-}
-
-bool TSFTextStore::CancelComposition() {
- // If there is an on-going document lock, we must not edit the text.
- if (edit_flag_)
- return false;
-
- if (string_buffer_.empty())
- return true;
-
- // Unlike ImmNotifyIME(NI_COMPOSITIONSTR, CPS_CANCEL, 0) in IMM32, TSF does
- // not have a dedicated method to cancel composition. However, CUAS actually
- // has a protocol conversion from CPS_CANCEL into TSF operations. According
- // to the observations on Windows 7, TIPs are expected to cancel composition
- // when an on-going composition text is replaced with an empty string. So
- // we use the same operation to cancel composition here to minimize the risk
- // of potential compatibility issues.
-
- const size_t previous_buffer_size = string_buffer_.size();
- string_buffer_.clear();
- committed_size_ = 0;
- selection_.set_start(0);
- selection_.set_end(0);
- if (text_store_acp_sink_mask_ & TS_AS_SEL_CHANGE)
- text_store_acp_sink_->OnSelectionChange();
- if (text_store_acp_sink_mask_ & TS_AS_LAYOUT_CHANGE)
- text_store_acp_sink_->OnLayoutChange(TS_LC_CHANGE, 0);
- if (text_store_acp_sink_mask_ & TS_AS_TEXT_CHANGE) {
- TS_TEXTCHANGE textChange = {};
- textChange.acpStart = 0;
- textChange.acpOldEnd = previous_buffer_size;
- textChange.acpNewEnd = 0;
- text_store_acp_sink_->OnTextChange(0, &textChange);
- }
- return true;
-}
-
-bool TSFTextStore::ConfirmComposition() {
- // If there is an on-going document lock, we must not edit the text.
- if (edit_flag_)
- return false;
-
- if (string_buffer_.empty())
- return true;
-
- // See the comment in TSFTextStore::CancelComposition.
- // This logic is based on the observation about how to emulate
- // ImmNotifyIME(NI_COMPOSITIONSTR, CPS_COMPLETE, 0) by CUAS.
-
- const base::string16& composition_text =
- string_buffer_.substr(committed_size_);
- if (!composition_text.empty())
- text_input_client_->InsertText(composition_text);
-
- const size_t previous_buffer_size = string_buffer_.size();
- string_buffer_.clear();
- committed_size_ = 0;
- selection_.set_start(0);
- selection_.set_end(0);
- if (text_store_acp_sink_mask_ & TS_AS_SEL_CHANGE)
- text_store_acp_sink_->OnSelectionChange();
- if (text_store_acp_sink_mask_ & TS_AS_LAYOUT_CHANGE)
- text_store_acp_sink_->OnLayoutChange(TS_LC_CHANGE, 0);
- if (text_store_acp_sink_mask_ & TS_AS_TEXT_CHANGE) {
- TS_TEXTCHANGE textChange = {};
- textChange.acpStart = 0;
- textChange.acpOldEnd = previous_buffer_size;
- textChange.acpNewEnd = 0;
- text_store_acp_sink_->OnTextChange(0, &textChange);
- }
- return true;
-}
-
-void TSFTextStore::SendOnLayoutChange() {
- if (text_store_acp_sink_ && (text_store_acp_sink_mask_ & TS_AS_LAYOUT_CHANGE))
- text_store_acp_sink_->OnLayoutChange(TS_LC_CHANGE, 0);
-}
-
-bool TSFTextStore::HasReadLock() const {
- return (current_lock_type_ & TS_LF_READ) == TS_LF_READ;
-}
-
-bool TSFTextStore::HasReadWriteLock() const {
- return (current_lock_type_ & TS_LF_READWRITE) == TS_LF_READWRITE;
-}
-
-} // namespace ui
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