blob: 48749072a50717a7b4034d0ebeb904dd7cb97013 [file] [log] [blame]
/* Copyright (c) 2012 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.
*/
/**
* This file contains the <code>PPB_Flash_MessageLoop</code> interface.
*/
label Chrome {
M18 = 0.1
};
/**
* The <code>PPB_Flash_MessageLoop</code> interface supports Pepper Flash to run
* nested message loops.
*/
interface PPB_Flash_MessageLoop {
/**
* Allocates a Flash message loop resource.
*
* @param[in] instance A <code>PP_Instance</code> identifying one instance
* of a module.
*
* @return A <code>PP_Resource</code> that can be used to run a nested message
* loop if successful; 0 if failed.
*/
PP_Resource Create([in] PP_Instance instance);
/**
* Determines if a given resource is a Flash message loop.
*
* @param[in] resource A <code>PP_Resource</code> corresponding to a generic
* resource.
*
* @return A <code>PP_Bool</code> that is <code>PP_TRUE</code> if the given
* resource is a Flash message loop, otherwise <code>PP_FALSE</code>.
*/
PP_Bool IsFlashMessageLoop([in] PP_Resource resource);
/**
* Runs a nested message loop. The plugin will be reentered from this call.
* This function is used in places where Flash would normally enter a nested
* message loop (e.g., when displaying context menus), but Pepper provides
* only an asynchronous call. After performing that asynchronous call, call
* <code>Run()</code>. In the callback, call <code>Quit()</code>.
*
* For a given message loop resource, only the first call to
* <code>Run()</code> will start a nested message loop. The subsequent calls
* will return <code>PP_ERROR_FAILED</code> immediately.
*
* @param[in] flash_message_loop The Flash message loop.
*
* @return <code>PP_ERROR_ABORTED</code> if the message loop quits because the
* resource is destroyed; <code>PP_OK</code> if the message loop quits because
* of other reasons (e.g., <code>Quit()</code> is called);
* <code>PP_ERROR_FAILED</code> if this is not the first call to
* <code>Run()</code>.
*/
int32_t Run([in] PP_Resource flash_message_loop);
/**
* Signals to quit the outermost nested message loop. Use this to exit and
* return back to the caller after you call <code>Run()</code>.
*
* If <code>Quit()</code> is not called to balance the call to
* <code>Run()</code>, the outermost nested message loop will be quitted
* implicitly when the resource is destroyed.
*
* @param[in] flash_message_loop The Flash message loop.
*/
void Quit([in] PP_Resource flash_message_loop);
};