Implement Pepper IME API.

content/renderer/render_widget.cc

 // Copyright (c) 2011 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 "content/renderer/render_widget.h"
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 1276 matching lines @@
 void RenderWidget::set_next_paint_is_repaint_ack() {
   next_paint_flags_ |= ViewHostMsg_UpdateRect_Flags::IS_REPAINT_ACK;
 }
 
 void RenderWidget::UpdateInputMethod() {
   if (!input_method_is_active_)
     return;
 
   ui::TextInputType new_type = GetTextInputType();
   bool new_can_compose_inline = CanComposeInline();
-  WebRect new_caret_bounds;
-
-  if (webwidget_)
-   new_caret_bounds = webwidget_->caretOrSelectionBounds();
+  WebRect new_caret_bounds = GetCaretBounds();
 
   // Only sends text input type and caret bounds to the browser process if they
   // are changed.
   if (text_input_type_ != new_type || caret_bounds_ != new_caret_bounds ||
       can_compose_inline_ != new_can_compose_inline) {
     text_input_type_ = new_type;
     can_compose_inline_ = new_can_compose_inline;
     caret_bounds_ = new_caret_bounds;
     Send(new ViewHostMsg_ImeUpdateTextInputState(
         routing_id(), new_type, new_can_compose_inline, new_caret_bounds));
   }
 }
 
+gfx::Rect RenderWidget::GetCaretBounds() {
+  if (!webwidget_)
+    return gfx::Rect();
+  return webwidget_->caretOrSelectionBounds();
+}
+
+// Check WebKit::WebTextInputType and ui::TextInputType is kept in sync.
 COMPILE_ASSERT(int(WebKit::WebTextInputTypeNone) == \
                int(ui::TEXT_INPUT_TYPE_NONE), mismatching_enums);
 COMPILE_ASSERT(int(WebKit::WebTextInputTypeText) == \
                int(ui::TEXT_INPUT_TYPE_TEXT), mismatching_enums);
 COMPILE_ASSERT(int(WebKit::WebTextInputTypePassword) == \
                int(ui::TEXT_INPUT_TYPE_PASSWORD), mismatching_enums);
 COMPILE_ASSERT(int(WebKit::WebTextInputTypeSearch) == \
                int(ui::TEXT_INPUT_TYPE_SEARCH), mismatching_enums);
 COMPILE_ASSERT(int(WebKit::WebTextInputTypeEmail) == \
                int(ui::TEXT_INPUT_TYPE_EMAIL), mismatching_enums);
@@ skipping 76 matching lines @@
   }
 }
 
 bool RenderWidget::WillHandleMouseEvent(const WebKit::WebMouseEvent& event) {
   return false;
 }
 
 bool RenderWidget::WebWidgetHandlesCompositorScheduling() const {
   return false;
 }