MacViews: Implement text input.

ui/views/cocoa/bridged_native_widget.mm

 // Copyright 2014 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.
 
 #import "ui/views/cocoa/bridged_native_widget.h"
 
 #include "base/logging.h"
 #include "ui/base/ime/input_method.h"
 #include "ui/base/ime/input_method_factory.h"
 #include "ui/base/ui_base_switches_util.h"
@@ skipping 21 matching lines @@
   if (view == [bridged_view_ hostedView])
     return;
 
   [bridged_view_ clearView];
   bridged_view_.reset();
   // Note that there can still be references to the old |bridged_view_|
   // floating around in Cocoa libraries at this point. However, references to
   // the old views::View will be gone, so any method calls will become no-ops.
 
   if (view) {
-    bridged_view_.reset([[BridgedContentView alloc] initWithView:view]);
+    bridged_view_.reset(
+        [[BridgedContentView alloc] initWithView:view parent:this]);
     // Objective C initializers can return nil. However, if |view| is non-NULL
     // this should be treated as an error and caught early.
     CHECK(bridged_view_);
   }
   [window_ setContentView:bridged_view_];
   [window_ makeFirstResponder:bridged_view_];
 }
 
 InputMethod* BridgedNativeWidget::CreateInputMethod() {
   if (switches::IsTextInputFocusManagerEnabled())
@@ skipping 16 matching lines @@
 
 void BridgedNativeWidget::DispatchKeyEventPostIME(const ui::KeyEvent& key) {
   // Mac key events don't go through this, but some unit tests that use
   // MockInputMethod do.
   Widget* widget = [bridged_view_ hostedView]->GetWidget();
   widget->OnKeyEvent(const_cast<ui::KeyEvent*>(&key));
   if (!key.handled() && widget->GetFocusManager())
     widget->GetFocusManager()->OnKeyEvent(key);
 }
 
+void BridgedNativeWidget::OnWillChangeFocus(View* focused_before,
+                                            View* focused_now) {
+}
+
+void BridgedNativeWidget::OnDidChangeFocus(View* focused_before,
+                                           View* focused_now) {
+  ui::TextInputClient* input_client =
+      focused_now ? focused_now->GetTextInputClient() : NULL;
+  [bridged_view_ setTextInputClient:input_client];
+}
+
 }  // namespace views