[reland] Browser Side Text Input State Tracking for OOPIF (Aura Only)

content/public/test/text_input_test_utils.h

+// Copyright 2016 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 CONTENT_PUBLIC_TEST_TEXT_INPUT_TEST_UTILS_H_
+#define CONTENT_PUBLIC_TEST_TEXT_INPUT_TEST_UTILS_H_
+
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include "base/callback.h"
+#include "ui/base/ime/text_input_mode.h"
+#include "ui/base/ime/text_input_type.h"
+
+namespace content {
+
+class RenderWidgetHostView;
+class RenderWidgetHostViewBase;
+class WebContents;
+struct TextInputState;
+
+// This class is intended to track TextInputState from TextInputManager.
+class TestTextInputManagerObserver {
+ public:
+  using Callback = base::Callback<void(TestTextInputManagerObserver*)>;
+
+  virtual ~TestTextInputManagerObserver();
+
+  // static
+  static std::unique_ptr<TestTextInputManagerObserver> Create(
+      WebContents* web_contents);
+  // static
+  static std::unordered_map<const RenderWidgetHostView*, ui::TextInputType>
+  GetTextInputTypeMap(WebContents* web_contents);
+
+  virtual void SetUpdateCallback(const Callback& callback) {}
+  virtual ui::TextInputType GetTextInputType() const = 0;
+  virtual bool GetTextInputValue(std::string& value) const = 0;
+  virtual const RenderWidgetHostView* GetActiveView() const = 0;
+  virtual const RenderWidgetHostView* GetUpdatedView() const = 0;
+  virtual bool IsTextInputStateChanged() const = 0;
+};
+
+class RenderWidgetHostViewDestructionObserver {
+ public:
+  virtual ~RenderWidgetHostViewDestructionObserver();
+  // static
+  static std::unique_ptr<RenderWidgetHostViewDestructionObserver> Create(
+      RenderWidgetHostView* view);
+
+  virtual void Wait() = 0;
+};
+
+ui::TextInputType GetTextInputTypeFromWebContents(WebContents* web_contents);
+
+RenderWidgetHostView* GetActiveViewFromWebContents(WebContents* web_contents);
+
+// Helper class to create TextInputState structs on the browser side and send it
+// to the |view|.
+class TextInputStateSender {
+ public:
+  explicit TextInputStateSender(RenderWidgetHostView* view);
+  virtual ~TextInputStateSender();
+
+  void Send();
+
+  void SetFromCurrentState();
+
+  // Adding the required setter methods.
+  void SetType(ui::TextInputType type);
+  void SetMode(ui::TextInputMode mode);
+  void SetFlags(int flags);
+  void SetCanComposeInline(bool can_compose_inline);
+  void SetShowImeIfNeeded(bool show_ime_if_needed);
+  void SetIsNonImeChange(bool is_non_ime_change);
+
+ private:
+  std::unique_ptr<TextInputState> text_input_state_;
+  RenderWidgetHostViewBase* const view_;
+
+  DISALLOW_COPY_AND_ASSIGN(TextInputStateSender);
+};
+
+// This class is intended to observe the InputMethod.
+class TestInputMethodObserver {
+ public:
+  // static
+  static std::unique_ptr<TestInputMethodObserver> Create(
+      WebContents* web_contents);
+
+  virtual ~TestInputMethodObserver();
+
+  virtual ui::TextInputType GetTextInputTypeFromClient() const = 0;
+
+  virtual void SetOnTextInputTypeChangedCallback(
+      const base::Closure& callback) = 0;
+  virtual void SetOnShowImeIfNeededCallback(const base::Closure& callback) = 0;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_TEST_TEXT_INPUT_TEST_UTILS_H_