Use EventHandler for IME

ash/host/ash_window_tree_host_ozone.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 "ash/host/ash_window_tree_host.h"
 
 #include "ash/host/ash_window_tree_host_init_params.h"
 #include "ash/host/ash_window_tree_host_unified.h"
 #include "ash/host/root_window_transformer.h"
 #include "ash/host/transformer_helper.h"
+#include "ash/ime/input_method_event_handler.h"
 #include "base/command_line.h"
 #include "base/trace_event/trace_event.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_tree_host_ozone.h"
 #include "ui/events/null_event_targeter.h"
 #include "ui/gfx/geometry/insets.h"
 #include "ui/gfx/transform.h"
 #include "ui/ozone/public/input_controller.h"
 #include "ui/ozone/public/ozone_platform.h"
 #include "ui/platform_window/platform_window.h"
@@ skipping 18 matching lines @@
   aura::WindowTreeHost* AsWindowTreeHost() override;
   void PrepareForShutdown() override;
   void SetRootTransform(const gfx::Transform& transform) override;
   gfx::Transform GetRootTransform() const override;
   gfx::Transform GetInverseRootTransform() const override;
   void UpdateRootWindowSize(const gfx::Size& host_size) override;
   void OnCursorVisibilityChangedNative(bool show) override;
   void SetBounds(const gfx::Rect& bounds) override;
   void DispatchEvent(ui::Event* event) override;
 
+  // ui::internal::InputMethodDelegate:
+  bool DispatchKeyEventPostIME(const ui::KeyEvent& event) override;
+
+  // ui::EventSource:
+  ui::EventDispatchDetails DeliverEventToProcessor(ui::Event* event) override {
+    return ui::EventSource::DeliverEventToProcessor(event);
+  }
+
   // Temporarily disable the tap-to-click feature. Used on CrOS.
   void SetTapToClickPaused(bool state);
 
   TransformerHelper transformer_helper_;
 
   DISALLOW_COPY_AND_ASSIGN(AshWindowTreeHostOzone);
 };
 
 AshWindowTreeHostOzone::AshWindowTreeHostOzone(const gfx::Rect& initial_bounds)
     : aura::WindowTreeHostOzone(initial_bounds), transformer_helper_(this) {
@@ skipping 66 matching lines @@
   ConfineCursorToRootWindow();
 }
 
 void AshWindowTreeHostOzone::DispatchEvent(ui::Event* event) {
   TRACE_EVENT0("input", "AshWindowTreeHostOzone::DispatchEvent");
   if (event->IsLocatedEvent())
     TranslateLocatedEvent(static_cast<ui::LocatedEvent*>(event));
   SendEventToProcessor(event);
 }
 
+bool AshWindowTreeHostOzone::DispatchKeyEventPostIME(
+    const ui::KeyEvent& event) {
+  ui::KeyEvent event_copy(event);
+  input_method_handler()->SetPostIME(true);
+  ui::EventSource::DeliverEventToProcessor(&event_copy);
+  input_method_handler()->SetPostIME(false);
+  return event_copy.handled();
+}
+
 void AshWindowTreeHostOzone::SetTapToClickPaused(bool state) {
 #if defined(OS_CHROMEOS)
   DCHECK(ui::OzonePlatform::GetInstance()->GetInputController());
 
   // Temporarily pause tap-to-click when the cursor is hidden.
   ui::OzonePlatform::GetInstance()->GetInputController()->SetTapToClickPaused(
       state);
 #endif
 }
 
 }  // namespace
 
 AshWindowTreeHost* AshWindowTreeHost::Create(
     const AshWindowTreeHostInitParams& init_params) {
   if (init_params.offscreen)
     return new AshWindowTreeHostUnified(init_params.initial_bounds);
   return new AshWindowTreeHostOzone(init_params.initial_bounds);
 }
 
 }  // namespace ash