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gaaclarke
54 lines
2.2 KiB
C++
54 lines
2.2 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef FLUTTER_SHELL_PLATFORM_EMBEDDER_EMBEDDER_PLATFORM_MESSAGE_RESPONSE_H_
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#define FLUTTER_SHELL_PLATFORM_EMBEDDER_EMBEDDER_PLATFORM_MESSAGE_RESPONSE_H_
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#include "flutter/fml/macros.h"
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#include "flutter/fml/task_runner.h"
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#include "flutter/lib/ui/window/platform_message_response.h"
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namespace flutter {
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//------------------------------------------------------------------------------
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/// @brief The platform message response subclass for responses to messages
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/// from the embedder to the framework. Message responses are
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/// fulfilled by the framework.
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class EmbedderPlatformMessageResponse : public PlatformMessageResponse {
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public:
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using Callback = std::function<void(const uint8_t* data, size_t size)>;
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//----------------------------------------------------------------------------
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/// @param[in] runner The task runner on which to execute the callback.
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/// The response will be initiated by the framework on
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/// the UI thread.
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/// @param[in] callback The callback that communicates to the embedder the
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/// contents of the response sent by the framework back
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/// to the emebder.
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EmbedderPlatformMessageResponse(fml::RefPtr<fml::TaskRunner> runner,
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const Callback& callback);
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//----------------------------------------------------------------------------
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/// @brief Destroys the message response. Can be called on any thread.
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/// Does not execute unfulfilled callbacks.
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///
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~EmbedderPlatformMessageResponse() override;
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private:
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fml::RefPtr<fml::TaskRunner> runner_;
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Callback callback_;
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// |PlatformMessageResponse|
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void Complete(std::unique_ptr<fml::Mapping> data) override;
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// |PlatformMessageResponse|
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void CompleteEmpty() override;
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FML_DISALLOW_COPY_AND_ASSIGN(EmbedderPlatformMessageResponse);
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};
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} // namespace flutter
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#endif // FLUTTER_SHELL_PLATFORM_EMBEDDER_EMBEDDER_PLATFORM_MESSAGE_RESPONSE_H_
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