Index: remoting/client/plugin/touch_input_scaler.h |
diff --git a/remoting/client/plugin/touch_input_scaler.h b/remoting/client/plugin/touch_input_scaler.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..51617918c7bd8fbec8631992adbaa17736ffe65d |
--- /dev/null |
+++ b/remoting/client/plugin/touch_input_scaler.h |
@@ -0,0 +1,48 @@ |
+// Copyright 2015 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 REMOTING_CLIENT_PLUGIN_TOUCH_INPUT_SCALER_H_ |
+#define REMOTING_CLIENT_PLUGIN_TOUCH_INPUT_SCALER_H_ |
+ |
+#include "remoting/protocol/input_filter.h" |
+#include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h" |
+ |
+namespace remoting { |
+ |
+namespace protocol { |
+class TouchEvent; |
+} // namespace protocol |
+ |
+// Scales the touch input coordinates to host coordinates and clamps so |
+// that the values do not go outside the remote desktop. |
+// Also resizes the touch size. |
+class TouchInputScaler : public protocol::InputFilter { |
+ public: |
+ TouchInputScaler() = default; |
+ explicit TouchInputScaler(InputStub* input_stub); |
+ ~TouchInputScaler() override; |
+ |
+ // Set input and output desktop sizes. |
+ void set_input_size(const webrtc::DesktopSize& size) { |
+ input_size_.set(size.width() - 1, size.height() - 1); |
+ } |
+ void set_output_size(const webrtc::DesktopSize& size) { |
+ output_size_.set(size.width() - 1, size.height() - 1); |
+ } |
+ |
+ // protocol::InputStub interface. |
+ void InjectTouchEvent(const protocol::TouchEvent& event) override; |
+ |
+ private: |
+ // Sizes for scaling and clamping coordinates and sizes. |
+ // These hold the max-X,Y coordinates and not the actual width and height. |
+ webrtc::DesktopSize input_size_; |
+ webrtc::DesktopSize output_size_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(TouchInputScaler); |
+}; |
+ |
+} // namespace remoting |
+ |
+#endif // REMOTING_CLIENT_PLUGIN_TOUCH_INPUT_SCALER_H_ |