remoting/client/plugin/pepper_input_handler.h

   1 // Copyright (c) 2012 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 REMOTING_CLIENT_PLUGIN_PEPPER_INPUT_HANDLER_H_
   6 #define REMOTING_CLIENT_PLUGIN_PEPPER_INPUT_HANDLER_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "remoting/protocol/input_stub.h"
  10
  11 namespace pp {
  12 class InputEvent;
  13 }  // namespace pp
  14
  15 namespace remoting {
  16
  17 namespace protocol {
  18 class InputStub;
  19 } // namespace protocol
  20
  21 class PepperInputHandler {
  22  public:
  23   PepperInputHandler();
  24
  25   // Sets the input stub to which processed events will be passed.
  26   void set_input_stub(protocol::InputStub* input_stub) {
  27     input_stub_ = input_stub;
  28   }
  29
  30   // Enable or disable sending mouse input when the plugin does not have input
  31   // focus.
  32   void set_send_mouse_input_when_unfocused(bool send) {
  33     send_mouse_input_when_unfocused_ = send;
  34   }
  35
  36   void set_send_mouse_move_deltas(bool enable) {
  37     send_mouse_move_deltas_ = enable;
  38   }
  39
  40   // Processes PPAPI events and dispatches them to |input_stub_|.
  41   bool HandleInputEvent(const pp::InputEvent& event);
  42
  43   // Must be called when the plugin receives or loses focus.
  44   void DidChangeFocus(bool has_focus);
  45
  46  private:
  47   // Receives input events generated from PPAPI input.
  48   protocol::InputStub* input_stub_;
  49
  50   // True if the plugin has focus.
  51   bool has_focus_;
  52
  53   // True if the plugin should respond to mouse input even if it does not have
  54   // keyboard focus.
  55   bool send_mouse_input_when_unfocused_;
  56
  57   // True if the plugin should include mouse move deltas, in addition to
  58   // absolute position information, in mouse events.
  59   bool send_mouse_move_deltas_;
  60
  61   // Accumulated sub-pixel and sub-tick deltas from wheel events.
  62   float wheel_delta_x_;
  63   float wheel_delta_y_;
  64   float wheel_ticks_x_;
  65   float wheel_ticks_y_;
  66
  67   DISALLOW_COPY_AND_ASSIGN(PepperInputHandler);
  68 };
  69
  70 }  // namespace remoting
  71
  72 #endif  // REMOTING_CLIENT_PLUGIN_PEPPER_INPUT_HANDLER_H_