Revert 201479 "Make InputMethodWin TSF-aware."

This is breaking chrome on windows 8, can't relaunch in desktop
see bug

BUG=244453

> Make InputMethodWin TSF-aware.
> 
> This patch set introduces following event handlings
> so that InputMethodWin can work with TSF-based IME.
> - Focus handling (OnFocus/OnBlur)
> - TextInputType handling (OnTextInputTypeChanged)
> - Composition Handling (OnDidChangeFocus/ConfirmCompositionText)
> 
> Basically this is just a quick fix and InputMethodWin
> should be refactored eventually.
> 
> BUG=239690
> TEST=Manually done on Windows 7 with --enable-text-services-framework
> 
> Review URL: https://chromiumcodereview.appspot.com/14698032

TBR=Yukawa@chromium.org

Review URL: https://codereview.chromium.org/15897010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@202709 0039d316-1c4b-4281-b951-d872f2087c98

6 files changed, 50 insertions, 140 deletions

diff --git a/ui/base/ime/win/mock_tsf_bridge.cc b/ui/base/ime/win/mock_tsf_bridge.cc
index 6cdb23c..c71eb07 100644
--- a/ui/base/ime/win/mock_tsf_bridge.cc
+++ b/ui/base/ime/win/mock_tsf_bridge.cc
@@ -38,10 +38,6 @@ void MockTSFBridge::OnTextInputTypeChanged(TextInputClient* client) {
   latest_text_input_type_ = client->GetTextInputType();
 }
 
-void MockTSFBridge::OnTextLayoutChanged() {
-  ++on_text_layout_changed_;
-}
-
 void MockTSFBridge::SetFocusedClient(HWND focused_window,
                                      TextInputClient* client) {
   ++set_focused_client_call_count_;
@@ -69,7 +65,6 @@ void MockTSFBridge::Reset() {
   enable_ime_call_count_ = 0;
   disalbe_ime_call_count_ = 0;
   cancel_composition_call_count_ = 0;
-  on_text_layout_changed_ = 0;
   associate_focus_call_count_ = 0;
   set_focused_client_call_count_ = 0;
   remove_focused_client_call_count_ = 0;
diff --git a/ui/base/ime/win/mock_tsf_bridge.h b/ui/base/ime/win/mock_tsf_bridge.h
index 0ba4818..a47b816 100644
--- a/ui/base/ime/win/mock_tsf_bridge.h
+++ b/ui/base/ime/win/mock_tsf_bridge.h
@@ -23,7 +23,6 @@ class MockTSFBridge : public TSFBridge {
   virtual void Shutdown() OVERRIDE;
   virtual bool CancelComposition() OVERRIDE;
   virtual void OnTextInputTypeChanged(TextInputClient* client) OVERRIDE;
-  virtual void OnTextLayoutChanged() OVERRIDE;
   virtual void SetFocusedClient(HWND focused_window,
                                 TextInputClient* client) OVERRIDE;
   virtual void RemoveFocusedClient(TextInputClient* client) OVERRIDE;
@@ -47,11 +46,6 @@ class MockTSFBridge : public TSFBridge {
     return cancel_composition_call_count_;
   }
 
-  // Call count of OnTextLayoutChanged().
-  int on_text_layout_changed() const {
-    return on_text_layout_changed_;
-  }
-
   // Call count of AssociateFocus().
   int associate_focus_call_count() const { return associate_focus_call_count_; }
 
@@ -81,7 +75,6 @@ class MockTSFBridge : public TSFBridge {
   int enable_ime_call_count_;
   int disalbe_ime_call_count_;
   int cancel_composition_call_count_;
-  int on_text_layout_changed_;
   int associate_focus_call_count_;
   int set_focused_client_call_count_;
   int remove_focused_client_call_count_;
diff --git a/ui/base/ime/win/tsf_bridge.cc b/ui/base/ime/win/tsf_bridge.cc
index 8da6949..c60cc6c 100644
--- a/ui/base/ime/win/tsf_bridge.cc
+++ b/ui/base/ime/win/tsf_bridge.cc
@@ -39,7 +39,6 @@ class TSFBridgeDelegate : public TSFBridge {
   // TsfBridge:
   virtual void Shutdown() OVERRIDE;
   virtual void OnTextInputTypeChanged(TextInputClient* client) OVERRIDE;
-  virtual void OnTextLayoutChanged() OVERRIDE;
   virtual bool CancelComposition() OVERRIDE;
   virtual void SetFocusedClient(HWND focused_window,
                                 TextInputClient* client) OVERRIDE;
@@ -75,6 +74,13 @@ class TSFBridgeDelegate : public TSFBridge {
   // Returns true if already initialized.
   bool IsInitialized();
 
+  // Returns an instance of ITfDocumentMgr that is associated with the
+  // current TextInputType of |client_|.
+  base::win::ScopedComPtr<ITfDocumentMgr> GetAssociatedDocumentManager();
+
+  // An ITfThreadMgr object to be used in focus and document management.
+  base::win::ScopedComPtr<ITfThreadMgr> thread_manager_;
+
   // A triple of document manager, text store and binding cookie between
   // a context owned by the document manager and the text store. This is a
   // minimum working set of an editable document in TSF.
@@ -89,17 +95,10 @@ class TSFBridgeDelegate : public TSFBridge {
     DWORD cookie;
   };
 
-  // Returns a pointer to TSFDocument that is associated with the current
-  // TextInputType of |client_|.
-  TSFDocument* GetAssociatedDocument();
-
-  // An ITfThreadMgr object to be used in focus and document management.
-  base::win::ScopedComPtr<ITfThreadMgr> thread_manager_;
-
   // A map from TextInputType to an editable document for TSF. We use multiple
   // TSF documents that have different InputScopes and TSF attributes based on
   // the TextInputType associated with the target document. For a TextInputType
-  // that is not converted by this map, a default document, e.g. the document
+  // that is not coverted by this map, a default document, e.g. the document
   // for TEXT_INPUT_TYPE_TEXT, should be used.
   // Note that some IMEs don't change their state unless the document focus is
   // changed. This is why we use multiple documents instead of changing TSF
@@ -199,20 +198,8 @@ void TSFBridgeDelegate::OnTextInputTypeChanged(TextInputClient* client) {
     // Called from not focusing client. Do nothing.
     return;
   }
-  TSFDocument* document = GetAssociatedDocument();
-  if (!document)
-    return;
-  thread_manager_->SetFocus(document->document_manager.get());
-  OnTextLayoutChanged();
-}
 
-void TSFBridgeDelegate::OnTextLayoutChanged() {
-  TSFDocument* document = GetAssociatedDocument();
-  if (!document)
-    return;
-  if (!document->text_store)
-    return;
-  document->text_store->SendOnLayoutChange();
+  thread_manager_->SetFocus(GetAssociatedDocumentManager().get());
 }
 
 bool TSFBridgeDelegate::CancelComposition() {
@@ -430,14 +417,13 @@ bool TSFBridgeDelegate::IsInitialized() {
   return client_id_ != TF_CLIENTID_NULL;
 }
 
-TSFBridgeDelegate::TSFDocument* TSFBridgeDelegate::GetAssociatedDocument() {
-  if (!client_)
-    return NULL;
-  TSFDocumentMap::iterator it =
+base::win::ScopedComPtr<ITfDocumentMgr>
+TSFBridgeDelegate::GetAssociatedDocumentManager() {
+  TSFDocumentMap::const_iterator it =
       tsf_document_map_.find(client_->GetTextInputType());
   if (it == tsf_document_map_.end())
-    return &tsf_document_map_[TEXT_INPUT_TYPE_TEXT];
-  return &it->second;
+    return tsf_document_map_[TEXT_INPUT_TYPE_TEXT].document_manager;
+  return it->second.document_manager;
 }
 
 }  // namespace
diff --git a/ui/base/ime/win/tsf_bridge.h b/ui/base/ime/win/tsf_bridge.h
index 5ba4a663..74f0550 100644
--- a/ui/base/ime/win/tsf_bridge.h
+++ b/ui/base/ime/win/tsf_bridge.h
@@ -51,11 +51,8 @@ class UI_EXPORT TSFBridge {
   // unless |client| is focused.
   virtual void OnTextInputTypeChanged(TextInputClient* client) = 0;
 
-  // Sends an event to TSF manager that the text layout should be updated.
-  virtual void OnTextLayoutChanged() = 0;
-
   // Cancels the ongoing composition if exists.
-  // Returns false if an error occurs.
+  // Returns false if an error occures.
   virtual bool CancelComposition() = 0;
 
   // Sets currently focused TextInputClient.
diff --git a/ui/views/ime/input_method_win.cc b/ui/views/ime/input_method_win.cc
index 6f6031a..bbc48d1 100644
--- a/ui/views/ime/input_method_win.cc
+++ b/ui/views/ime/input_method_win.cc
@@ -7,17 +7,14 @@
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/string_util.h"
-#include "base/win/metro.h"
 #include "ui/base/events/event.h"
 #include "ui/base/events/event_constants.h"
 #include "ui/base/events/event_utils.h"
 #include "ui/base/ime/composition_text.h"
 #include "ui/base/ime/input_method.h"
 #include "ui/base/ime/text_input_client.h"
-#include "ui/base/ime/win/tsf_bridge.h"
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/base/win/hwnd_util.h"
-#include "ui/views/win/hwnd_util.h"
 
 // Extra number of chars before and after selection (or composition) range which
 // is returned to IME for improving conversion accuracy.
@@ -49,32 +46,11 @@ void InputMethodWin::Init(Widget* widget) {
 }
 
 void InputMethodWin::OnFocus() {
-  if (base::win::IsTSFAwareRequired()) {
-    if (GetTextInputClient()) {
-      ui::TSFBridge* tsf_bridge = ui::TSFBridge::GetInstance();
-      tsf_bridge->SetFocusedClient(hwnd_, GetTextInputClient());
-    }
-  } else {
-    // Use switch here in case we are going to add more text input types.
-    // We disable input method in password field.
-    switch (GetTextInputType()) {
-      case ui::TEXT_INPUT_TYPE_NONE:
-      case ui::TEXT_INPUT_TYPE_PASSWORD:
-        ime_input_.DisableIME(hwnd_);
-        break;
-      default:
-        ime_input_.EnableIME(hwnd_);
-      break;
-    }
-    OnTextInputTypeChanged(GetFocusedView());
-    OnCaretBoundsChanged(GetFocusedView());
-  }
+  UpdateIMEState();
 }
 
 void InputMethodWin::OnBlur() {
   ConfirmCompositionText();
-  if (base::win::IsTSFAwareRequired() && GetTextInputClient())
-    ui::TSFBridge::GetInstance()->RemoveFocusedClient(GetTextInputClient());
 }
 
 void InputMethodWin::DispatchKeyEvent(const ui::KeyEvent& key) {
@@ -103,49 +79,22 @@ void InputMethodWin::DispatchKeyEvent(const ui::KeyEvent& key) {
 
 void InputMethodWin::OnTextInputTypeChanged(View* view) {
   if (IsViewFocused(view)) {
-    if (base::win::IsTSFAwareRequired()) {
-      if (GetTextInputClient()) {
-        ui::TSFBridge::GetInstance()->OnTextInputTypeChanged(
-            GetTextInputClient());
-      }
-    } else {
-      ime_input_.CancelIME(hwnd_);
-      // Use switch here in case we are going to add more text input types.
-      // We disable input method in password field.
-      switch (GetTextInputType()) {
-        case ui::TEXT_INPUT_TYPE_NONE:
-        case ui::TEXT_INPUT_TYPE_PASSWORD:
-          ime_input_.DisableIME(hwnd_);
-          break;
-        default:
-          ime_input_.EnableIME(hwnd_);
-          break;
-      }
-      OnCaretBoundsChanged(GetFocusedView());
-    }
+    ime_input_.CancelIME(hwnd_);
+    UpdateIMEState();
   }
   InputMethodBase::OnTextInputTypeChanged(view);
 }
 
 void InputMethodWin::OnCaretBoundsChanged(View* view) {
-  if (base::win::IsTSFAwareRequired()) {
-    ui::TSFBridge::GetInstance()->OnTextLayoutChanged();
-  } else {
-    gfx::Rect rect;
-    if (!IsViewFocused(view) || !GetCaretBoundsInWidget(&rect))
-      return;
-    ime_input_.UpdateCaretRect(hwnd_, rect);
-  }
+  gfx::Rect rect;
+  if (!IsViewFocused(view) || !GetCaretBoundsInWidget(&rect))
+    return;
+  ime_input_.UpdateCaretRect(hwnd_, rect);
 }
 
 void InputMethodWin::CancelComposition(View* view) {
-  if (IsViewFocused(view)) {
-    if (base::win::IsTSFAwareRequired()) {
-      ui::TSFBridge::GetInstance()->CancelComposition();
-    } else {
-      ime_input_.CancelIME(hwnd_);
-    }
-  }
+  if (IsViewFocused(view))
+    ime_input_.CancelIME(hwnd_);
 }
 
 std::string InputMethodWin::GetInputLocale() {
@@ -207,26 +156,7 @@ void InputMethodWin::OnWillChangeFocus(View* focused_before, View* focused) {
 }
 
 void InputMethodWin::OnDidChangeFocus(View* focused_before, View* focused) {
-  if (base::win::IsTSFAwareRequired()) {
-    if (GetTextInputClient()) {
-      ui::TSFBridge::GetInstance()->SetFocusedClient(HWNDForView(focused),
-                                                     GetTextInputClient());
-    }
-  } else {
-    // Use switch here in case we are going to add more text input types.
-    // We disable input method in password field.
-    switch (GetTextInputType()) {
-      case ui::TEXT_INPUT_TYPE_NONE:
-      case ui::TEXT_INPUT_TYPE_PASSWORD:
-        ime_input_.DisableIME(hwnd_);
-        break;
-      default:
-        ime_input_.EnableIME(hwnd_);
-        break;
-    }
-    OnTextInputTypeChanged(GetFocusedView());
-    OnCaretBoundsChanged(GetFocusedView());
-  }
+  UpdateIMEState();
 }
 
 void InputMethodWin::OnInputLangChange(DWORD character_set,
@@ -349,7 +279,7 @@ LRESULT InputMethodWin::OnChar(
 
   // Explicitly show the system menu at a good location on [Alt]+[Space].
   // Note: Setting |handled| to FALSE for DefWindowProc triggering of the system
-  //       menu causes undesirable titlebar artifacts in the classic theme.
+  //       menu causes unsdesirable titlebar artifacts in the classic theme.
   if (message == WM_SYSCHAR && wparam == VK_SPACE)
     ui::ShowSystemMenu(hwnd_);
 
@@ -434,7 +364,7 @@ LRESULT InputMethodWin::OnDocumentFeed(RECONVERTSTRING* reconv) {
   memcpy((char*)reconv + sizeof(RECONVERTSTRING),
          text.c_str(), len * sizeof(WCHAR));
 
-  // According to Microsoft API document, IMR_RECONVERTSTRING and
+  // According to Microsft API document, IMR_RECONVERTSTRING and
   // IMR_DOCUMENTFEED should return reconv, but some applications return
   // need_size.
   return reinterpret_cast<LRESULT>(reconv);
@@ -517,20 +447,26 @@ LRESULT InputMethodWin::OnQueryCharPosition(IMECHARPOSITION *char_positon) {
 
 void InputMethodWin::ConfirmCompositionText() {
   if (!IsTextInputTypeNone()) {
-    if (base::win::IsTSFAwareRequired()) {
-      // TSFBridge has not implemented ConfirmComposition yet. So here cancel
-      // the composition instead as a workaround.
-      // TODO(ime): Implement ConfirmComposition for TSF.
-      ui::TSFBridge::GetInstance()->CancelComposition();
-    } else {
-      ime_input_.CleanupComposition(hwnd_);
-      // Though above line should confirm the client's composition text by
-      // sending a result text to us, in case the input method and the client
-      // are in inconsistent states, we check the client's composition state
-      // again.
-      if (GetTextInputClient()->HasCompositionText())
-        GetTextInputClient()->ConfirmCompositionText();
-    }
+    ime_input_.CleanupComposition(hwnd_);
+    // Though above line should confirm the client's composition text by sending
+    // a result text to us, in case the input method and the client are in
+    // inconsistent states, we check the client's composition state again.
+    if (GetTextInputClient()->HasCompositionText())
+      GetTextInputClient()->ConfirmCompositionText();
+  }
+}
+
+void InputMethodWin::UpdateIMEState() {
+  // Use switch here in case we are going to add more text input types.
+  // We disable input method in password field.
+  switch (GetTextInputType()) {
+    case ui::TEXT_INPUT_TYPE_NONE:
+    case ui::TEXT_INPUT_TYPE_PASSWORD:
+      ime_input_.DisableIME(hwnd_);
+      break;
+    default:
+      ime_input_.EnableIME(hwnd_);
+      break;
   }
 }
 
diff --git a/ui/views/ime/input_method_win.h b/ui/views/ime/input_method_win.h
index 4e93890..139d301 100644
--- a/ui/views/ime/input_method_win.h
+++ b/ui/views/ime/input_method_win.h
@@ -82,6 +82,9 @@ class InputMethodWin : public InputMethodBase {
   // Asks the client to confirm current composition text.
   void ConfirmCompositionText();
 
+  // Enables or disables the IME according to the current text input type.
+  void UpdateIMEState();
+
   // The HWND this InputMethod is bound to.
   HWND hwnd_;