Support a private event - inputMethodPrivate.onCompositionBoundsChanged so that component IME exten…

chrome/browser/chromeos/input_method/input_method_engine_unittest.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 "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/histogram_samples.h"
 #include "base/metrics/statistics_recorder.h"
 #include "base/test/histogram_tester.h"
 #include "chrome/browser/chromeos/input_method/input_method_configuration.h"
 #include "chrome/browser/chromeos/input_method/input_method_engine.h"
 #include "chrome/browser/chromeos/input_method/input_method_engine_interface.h"
 #include "chrome/browser/chromeos/input_method/mock_input_method_manager.h"
 #include "chromeos/ime/extension_ime_util.h"
 #include "chromeos/ime/mock_component_extension_ime_manager_delegate.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/ime/chromeos/mock_ime_input_context_handler.h"
 #include "ui/base/ime/text_input_flags.h"
+#include "ui/gfx/geometry/rect.h"
 
 namespace chromeos {
 
 namespace input_method {
 namespace {
 
 const char kTestExtensionId[] = "mppnpdlheglhdfmldimlhpnegondlapf";
 const char kTestExtensionId2[] = "dmpipdbjkoajgdeppkffbjhngfckdloi";
 const char kTestImeComponentId[] = "test_engine_id";
 
 enum CallsBitmap {
   NONE = 0U,
   ACTIVATE = 1U,
   DEACTIVATED = 2U,
   ONFOCUS = 4U,
-  ONBLUR = 8U
+  ONBLUR = 8U,
+  ONCOMPOSITIONBOUNDSCHANGED = 16U
 };
 
 void InitInputMethod() {
   ComponentExtensionIMEManager* comp_ime_manager =
       new ComponentExtensionIMEManager;
   MockComponentExtIMEManagerDelegate* delegate =
       new MockComponentExtIMEManagerDelegate;
 
   ComponentExtensionIME ext1;
   ext1.id = kTestExtensionId;
@@ skipping 45 matching lines @@
       int candidate_id,
       InputMethodEngineInterface::MouseButtonEvent button) override {}
   virtual void OnMenuItemActivated(
       const std::string& engine_id,
       const std::string& menu_id) override {}
   virtual void OnSurroundingTextChanged(
       const std::string& engine_id,
       const std::string& text,
       int cursor_pos,
       int anchor_pos) override {}
+  virtual void OnCompositionBoundsChanged(const gfx::Rect& bounds) override {
+    calls_bitmap_ |= ONCOMPOSITIONBOUNDSCHANGED;
+  }
   virtual void OnReset(const std::string& engine_id) override {}
 
   unsigned char GetCallsBitmapAndReset() {
     unsigned char ret = calls_bitmap_;
     calls_bitmap_ = NONE;
     return ret;
   }
 
  private:
   unsigned char calls_bitmap_;
@@ skipping 133 matching lines @@
   engine_->CommitText(1,
                       "\xE5\x85\xA5\xE5\x8A\x9B",  // 2 UTF-8 characters
                       &error);
   engine_->CommitText(1, "input\xE5\x85\xA5\xE5\x8A\x9B", &error);
   histograms.ExpectTotalCount("InputMethod.CommitLength", 3);
   histograms.ExpectBucketCount("InputMethod.CommitLength", 5, 1);
   histograms.ExpectBucketCount("InputMethod.CommitLength", 2, 1);
   histograms.ExpectBucketCount("InputMethod.CommitLength", 7, 1);
 }
 
+TEST_F(InputMethodEngineTest, TestCompositionBoundsChanged) {
+  CreateEngine(true);
+  // Enable/disable with focus.
+  engine_->SetCompositionBounds(gfx::Rect());
+  EXPECT_EQ(ONCOMPOSITIONBOUNDSCHANGED,
+            observer_->GetCallsBitmapAndReset());
+}
+
 }  // namespace input_method
 }  // namespace chromeos