Exposes cursor position to IME extension through chrome.inputMethodPrivate.onCompositionBoundsChang…

ui/base/ime/input_method_chromeos.cc

 // 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.
 
 #include "ui/base/ime/input_method_chromeos.h"
 
 #include <algorithm>
 #include <cstring>
 #include <set>
 #include <vector>
@@ skipping 171 matching lines @@
 
   if (!IsNonPasswordInputFieldFocused())
     return;
 
   // The current text input type should not be NONE if |context_| is focused.
   DCHECK(client == GetTextInputClient());
   DCHECK(!IsTextInputTypeNone());
   const gfx::Rect caret_rect = client->GetCaretBounds();
 
   gfx::Rect composition_head;
+  std::vector<gfx::Rect> rects;
   if (client->HasCompositionText()) {
-    std::vector<gfx::Rect> rects;
     uint32 i = 0;
     gfx::Rect rect;
     while (client->GetCompositionCharacterBounds(i++, &rect))
       rects.push_back(rect);
-    if (rects.size() > 0) {
-      if (GetEngine())
-        GetEngine()->SetCompositionBounds(rects);
-      composition_head = rects[0];
-    }
   } else {
-    composition_head = caret_rect;
+    rects.push_back(caret_rect);
+  }
+
+  if (rects.size() > 0) {
+    composition_head = rects[0];
+    if (GetEngine())
+      GetEngine()->SetCompositionBounds(rects);
   }
 
   chromeos::IMECandidateWindowHandlerInterface* candidate_window =
       chromeos::IMEBridge::Get()->GetCandidateWindowHandler();
   if (!candidate_window)
     return;
   candidate_window->SetCursorBounds(caret_rect, composition_head);
 
   gfx::Range text_range;
   gfx::Range selection_range;
@@ skipping 459 matching lines @@
 bool InputMethodChromeOS::IsNonPasswordInputFieldFocused() {
   TextInputType type = GetTextInputType();
   return (type != TEXT_INPUT_TYPE_NONE) && (type != TEXT_INPUT_TYPE_PASSWORD);
 }
 
 bool InputMethodChromeOS::IsInputFieldFocused() {
   return GetTextInputType() != TEXT_INPUT_TYPE_NONE;
 }
 
 }  // namespace ui