Redesigns the text input focus handling.

ui/views/widget/widget.cc

 // 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.
 
 #include "ui/views/widget/widget.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 771 matching lines @@
     const Widget* toplevel = GetTopLevelWidget();
     // If GetTopLevelWidget() returns itself which is not toplevel,
     // the widget is detached from toplevel widget.
     // TODO(oshima): Fix GetTopLevelWidget() to return NULL
     // if there is no toplevel. We probably need to add GetTopMostWidget()
     // to replace some use cases.
     return (toplevel && toplevel != this) ? toplevel->GetInputMethod() : NULL;
   }
 }
 
+ui::InputMethod* Widget::GetHostInputMethod() {
+  return native_widget_private()->GetHostInputMethod();
+}
+
 void Widget::RunShellDrag(View* view,
                           const ui::OSExchangeData& data,
                           const gfx::Point& location,
                           int operation,
                           ui::DragDropTypes::DragEventSource source) {
   dragged_view_ = view;
   native_widget_->RunShellDrag(view, data, location, operation, source);
   // If the view is removed during the drag operation, dragged_view_ is set to
   // NULL.
   if (view && dragged_view_ == view) {
@@ skipping 221 matching lines @@
     SaveWindowPlacement();
 
   FOR_EACH_OBSERVER(WidgetObserver, observers_,
                     OnWidgetActivationChanged(this, active));
 
   if (IsVisible() && non_client_view())
     non_client_view()->frame_view()->SchedulePaint();
 }
 
 void Widget::OnNativeFocus(gfx::NativeView old_focused_view) {
+  // Ensure the focused view's TextInputClient is used for text input.
+  views::FocusManager* focus_manager = GetFocusManager();
+  focus_manager->FocusTextInputClient(focus_manager->GetFocusedView());
+
   WidgetFocusManager::GetInstance()->OnWidgetFocusEvent(old_focused_view,
                                                         GetNativeView());
 }
 
 void Widget::OnNativeBlur(gfx::NativeView new_focused_view) {
+  // Ensure the focused view's TextInputClient is not used for text input.
+  views::FocusManager* focus_manager = GetFocusManager();
+  focus_manager->BlurTextInputClient(focus_manager->GetFocusedView());
+
   WidgetFocusManager::GetInstance()->OnWidgetFocusEvent(GetNativeView(),
                                                         new_focused_view);
 }
 
 void Widget::OnNativeWidgetVisibilityChanging(bool visible) {
   FOR_EACH_OBSERVER(WidgetObserver, observers_,
                     OnWidgetVisibilityChanging(this, visible));
 }
 
 void Widget::OnNativeWidgetVisibilityChanged(bool visible) {
@@ skipping 444 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // internal::NativeWidgetPrivate, NativeWidget implementation:
 
 internal::NativeWidgetPrivate* NativeWidgetPrivate::AsNativeWidgetPrivate() {
   return this;
 }
 
 }  // namespace internal
 }  // namespace views