components/messages/android/message_dispatcher_bridge.h

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_MESSAGES_ANDROID_MESSAGE_DISPATCHER_BRIDGE_H_
#define COMPONENTS_MESSAGES_ANDROID_MESSAGE_DISPATCHER_BRIDGE_H_

#include "components/messages/android/message_enums.h"
#include "components/messages/android/message_wrapper.h"
#include "ui/android/window_android.h"

namespace content {
class WebContents;
}

namespace messages {

// C++ counterpart to MessageDispatcherBridge.java. Enables C++ feature code to
// enqueue/dismiss messages with MessageDispatcher.java.
class MessageDispatcherBridge {
 public:
  using ResourceIdMapper = base::RepeatingCallback<int(int)>;

  static MessageDispatcherBridge* Get();

  static void SetInstanceForTesting(MessageDispatcherBridge* instance);

  MessageDispatcherBridge();

  virtual bool EnqueueMessage(MessageWrapper* message,
                              content::WebContents* web_contents,
                              MessageScopeType scope_type,
                              MessagePriority priority);
  virtual bool EnqueueWindowScopedMessage(MessageWrapper* message,
                                          ui::WindowAndroid* window_android,
                                          MessagePriority priority);
  virtual void DismissMessage(MessageWrapper* message,
                              DismissReason dismiss_reason);

  // Helper method for mapping native resource id to Java Drawable resource id.
  // This is useful for setting icon resource ids in MessageWrapper from the
  // code that doesn't have access to ResourceMapper, e.g. code in //components.
  virtual int MapToJavaDrawableId(int resource_id);

  void Initialize(ResourceIdMapper resource_id_mapper);

  bool IsMessagesEnabledForEmbedder() { return messages_enabled_for_embedder_; }

 protected:
  virtual ~MessageDispatcherBridge();
  bool messages_enabled_for_embedder_ = false;

 private:
  ResourceIdMapper resource_id_mapper_;
};

}  // namespace messages

#endif  // COMPONENTS_MESSAGES_ANDROID_MESSAGE_DISPATCHER_BRIDGE_H_