ppapi/api/dev/ppb_keyboard_input_event_dev.idl

   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
   6 /**
   7  * This file defines the <code>PPB_KeyboardInputEvent_Dev</code> interface,
   8  * which provides access to USB key codes that identify the physical key being
   9  * pressed.
  10  */
  11
  12 label Chrome {
  13   M19 = 0.1
  14 };
  15
  16 /**
  17  * The <code>PPB_KeyboardInputEvent_Dev</code> interface is an extension to the
  18  * PPB_KeyboardInputEvent</code> interface that provides
  19  */
  20 [version=0.1, macro="PPB_KEYBOARD_INPUT_EVENT_DEV_INTERFACE"]
  21 interface PPB_KeyboardInputEvent_Dev {
  22   /**
  23    * This sets a USB key code in the given <code>PP_Resource</code>. It is
  24    * intended that this method be called immediately after any call to
  25    * <code>Create</code>.
  26    *
  27    * @param[in] key_event A <code>PP_Resource</code> created by
  28    * <code>PPB_KeyboardInputEvent</code>'s <code>Create</code> method.
  29    *
  30    * @param[in] usb_key_code The USB key code to associate with this
  31    * <code>key_event</code>.
  32    *
  33    * @return <code>PP_TRUE</code> if the USB key code was set successfully.
  34    */
  35   PP_Bool SetUsbKeyCode([in] PP_Resource key_event,
  36                          [in] uint32_t usb_key_code);
  37
  38   /**
  39    * GetUsbKeyCode() returns the USB key code associated with this keyboard
  40    * event.
  41    *
  42    * @param[in] key_event The key event for which to return the key code.
  43    *
  44    * @return The USB key code field for the keyboard event. If there is no
  45    * USB scancode associated with this event, or if the PP_Resource does not
  46    * support the PPB_InputEvent_API (i.e., it is not an input event), then
  47    * a 0 is returned.
  48    */
  49   uint32_t GetUsbKeyCode([in] PP_Resource key_event);
  50 };