Support InputMethodManager#updateCursorAnchorInfo for Android 5.0

ui/base/ime/android/cursor_anchor_info_controller.h

+// Copyright (c) 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.
+
+#ifndef UI_BASE_IME_ANDROID_CURAOR_ANCHOR_INFO_CONTROLLER_H_
+#define UI_BASE_IME_ANDROID_CURAOR_ANCHOR_INFO_CONTROLLER_H_
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/strings/string16.h"
+#include "ui/base/ui_base_export.h"
+#include "ui/gfx/geometry/rect.h"
+#include "ui/gfx/geometry/vector2d.h"
+#include "ui/gfx/geometry/vector2d_f.h"
+#include "ui/gfx/range/range.h"
+
+namespace cc {
+class CompositorFrameMetadata;
+}
+
+namespace ui {
+
+class CursorAnchorInfoBuilder;
+class CursorAnchorInfoSender;
+
+class UI_BASE_EXPORT CursorAnchorInfoController {
+ public:
+  // Defined in android.view.inputmethod.InputConnection.
+  enum Flags {
+    kCursorUpdateModeImmediate = 0x01,
+    kCursorUpdateModeMonitor = 0x02,
+  };
+
+  virtual ~CursorAnchorInfoController();
+
+  virtual void OnFocusedNodeChanged(bool is_editable_node) = 0;
+
+  virtual void OnTextInputStateChanged(
+      const base::string16& text,
+      const gfx::Range& selection_range,
+      const gfx::Range& composition_range) = 0;
+
+  virtual void OnCompositionRangeChanged(
+      const gfx::Range& range,
+      const std::vector<gfx::Rect>& character_bounds) = 0;
+
+  virtual void OnFrameMetadataUpdated(
+      const cc::CompositorFrameMetadata& frame_metadata,
+      const gfx::Vector2d& view_offset) = 0;
+
+  virtual bool OnRequestCursorUpdates(uint32 cursor_update_mode) = 0;
+
+  // Does not take ownership of |sender|.
+  static scoped_ptr<CursorAnchorInfoController> Create(
+      CursorAnchorInfoSender* sender);
+
+  static scoped_ptr<CursorAnchorInfoController> CreateForTest(
+      CursorAnchorInfoSender* sender,
+      scoped_ptr<CursorAnchorInfoBuilder> cursor_anchor_info_builder);
+
+ protected:
+  CursorAnchorInfoController();
+};
+
+}  // namespace ui
+
+#endif  // UI_BASE_IME_ANDROID_CURAOR_ANCHOR_INFO_CONTROLLER_H_