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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef BLIMP_CLIENT_FEATURE_RENDER_WIDGET_FEATURE_H_ | |
| 6 #define BLIMP_CLIENT_FEATURE_RENDER_WIDGET_FEATURE_H_ | |
| 7 | |
| 8 #include <stdint.h> | |
| 9 | |
| 10 #include <map> | |
| 11 #include <memory> | |
| 12 | |
| 13 #include "base/containers/small_map.h" | |
| 14 #include "base/macros.h" | |
| 15 #include "blimp/net/blimp_message_processor.h" | |
| 16 #include "blimp/net/input_message_generator.h" | |
| 17 | |
| 18 namespace blink { | |
| 19 class WebGestureEvent; | |
| 20 } | |
| 21 | |
| 22 namespace cc { | |
| 23 namespace proto { | |
| 24 class CompositorMessage; | |
| 25 } | |
| 26 } | |
| 27 | |
| 28 namespace blimp { | |
| 29 class RenderWidgetMessage; | |
| 30 class CompositorMessage; | |
| 31 | |
| 32 namespace client { | |
| 33 | |
| 34 // Handles all incoming and outgoing protobuf message types tied to a specific | |
| 35 // RenderWidget. This includes BlimpMessage::INPUT, BlimpMessage::COMPOSITOR, | |
| 36 // and BlimpMessage::RENDER_WIDGET messages. Delegates can be added to be | |
| 37 // notified of incoming messages. This class automatically attaches a specific | |
| 38 // id so that the engine can drop stale RenderWidget related messages after it | |
| 39 // sends a RenderWidgetMessage::INITIALIZE message. | |
| 40 class RenderWidgetFeature : public BlimpMessageProcessor { | |
| 41 public: | |
| 42 // A delegate to be notified of specific RenderWidget related incoming events. | |
| 43 class RenderWidgetFeatureDelegate { | |
| 44 public: | |
| 45 virtual ~RenderWidgetFeatureDelegate() {} | |
| 46 virtual void OnRenderWidgetCreated(int render_widget_id) = 0; | |
| 47 | |
| 48 // Called when the engine's RenderWidget has changed for a particular | |
| 49 // WebContents. When this is received all state related to the existing | |
| 50 // client RenderWidget should be reset. | |
| 51 virtual void OnRenderWidgetInitialized(int render_widget_id) = 0; | |
| 52 | |
| 53 virtual void OnRenderWidgetDeleted(int render_widget_id) = 0; | |
| 54 | |
| 55 // Called when the engine sent a CompositorMessage. These messages should | |
| 56 // be sent to the client's RemoteChannel of the compositor. | |
| 57 virtual void OnCompositorMessageReceived( | |
| 58 int render_widget_id, | |
| 59 std::unique_ptr<cc::proto::CompositorMessage> message) = 0; | |
| 60 }; | |
| 61 | |
| 62 RenderWidgetFeature(); | |
| 63 ~RenderWidgetFeature() override; | |
| 64 | |
| 65 // Set the BlimpMessageProcessor that will be used to send BlimpMessage::INPUT | |
| 66 // messages to the engine. | |
| 67 void set_outgoing_input_message_processor( | |
| 68 std::unique_ptr<BlimpMessageProcessor> processor); | |
| 69 | |
| 70 // Set the BlimpMessageProcessor that will be used to send | |
| 71 // BlimpMessage::COMPOSITOR messages to the engine. | |
| 72 void set_outgoing_compositor_message_processor( | |
| 73 std::unique_ptr<BlimpMessageProcessor> processor); | |
| 74 | |
| 75 // Sends a WebGestureEvent for |tab_id| to the engine. | |
| 76 void SendWebGestureEvent(const int tab_id, | |
| 77 const int render_widget_id, | |
| 78 const blink::WebGestureEvent& event); | |
| 79 | |
| 80 // Sends a CompositorMessage for |tab_id| to the engine. | |
| 81 void SendCompositorMessage(const int tab_id, | |
| 82 const int render_widget_id, | |
| 83 const cc::proto::CompositorMessage& message); | |
| 84 | |
| 85 // Sets a RenderWidgetMessageDelegate to be notified of all incoming | |
| 86 // RenderWidget related messages for |tab_id| from the engine. There can only | |
| 87 // be one RenderWidgetMessageDelegate per tab. | |
| 88 // virtual for testing. | |
| 89 virtual void SetDelegate(int tab_id, RenderWidgetFeatureDelegate* delegate); | |
| 90 virtual void RemoveDelegate(const int tab_id); | |
| 91 | |
| 92 // BlimpMessageProcessor implementation. | |
| 93 void ProcessMessage(std::unique_ptr<BlimpMessage> message, | |
| 94 const net::CompletionCallback& callback) override; | |
| 95 | |
| 96 private: | |
| 97 void ProcessRenderWidgetMessage( | |
| 98 RenderWidgetFeatureDelegate* delegate, | |
| 99 const RenderWidgetMessage& message); | |
| 100 | |
| 101 void ProcessCompositorMessage(RenderWidgetFeatureDelegate* delegate, | |
| 102 const CompositorMessage& message); | |
| 103 | |
| 104 // Returns nullptr if no delegate is found. | |
| 105 RenderWidgetFeatureDelegate* FindDelegate(const int tab_id); | |
| 106 | |
| 107 typedef base::SmallMap<std::map<int, RenderWidgetFeatureDelegate*>> | |
| 108 DelegateMap; | |
| 109 | |
| 110 DelegateMap delegates_; | |
| 111 | |
| 112 InputMessageGenerator input_message_generator_; | |
| 113 | |
| 114 // Used to send BlimpMessage::INPUT type messages to the engine. | |
| 115 std::unique_ptr<BlimpMessageProcessor> outgoing_input_message_processor_; | |
| 116 | |
| 117 // Used to send BlimpMessage::COMPOSITOR messages to the engine. | |
| 118 std::unique_ptr<BlimpMessageProcessor> outgoing_compositor_message_processor_; | |
| 119 | |
| 120 DISALLOW_COPY_AND_ASSIGN(RenderWidgetFeature); | |
| 121 }; | |
| 122 | |
| 123 } // namespace client | |
| 124 } // namespace blimp | |
| 125 | |
| 126 #endif // BLIMP_CLIENT_FEATURE_RENDER_WIDGET_FEATURE_H_ | |
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Chromium Code Reviews
Issue 2292723003:
Move remaining Blimp feature code to core. (Closed)
