/* Copyright 2013 The Chromium Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/**
* This file contains interface functions used for unit testing. Do not use in
* production code. They are not guaranteed to be available in normal plugin
* environments so you should not depend on them.
*/
label Chrome {
M33 = 1.0
};
interface PPB_Testing_Private {
/**
* Reads the bitmap data out of the backing store for the given
* DeviceContext2D and into the given image. If the data was successfully
* read, it will return PP_TRUE.
*
* This function should not generally be necessary for normal plugin
* operation. If you want to update portions of a device, the expectation is
* that you will either regenerate the data, or maintain a backing store
* pushing updates to the device from your backing store via PaintImageData.
* Using this function will introduce an extra copy which will make your
* plugin slower. In some cases, this may be a very expensive operation (it
* may require slow cross-process transitions or graphics card readbacks).
*
* Data will be read into the image starting at |top_left| in the device
* context, and proceeding down and to the right for as many pixels as the
* image is large. If any part of the image bound would fall outside of the
* backing store of the device if positioned at |top_left|, this function
* will fail and return PP_FALSE.
*
* The image format must be of the format
* PPB_ImageData.GetNativeImageDataFormat() or this function will fail and
* return PP_FALSE.
*
* The returned image data will represent the current status of the backing
* store. This will not include any paint, scroll, or replace operations
* that have not yet been flushed; these operations are only reflected in
* the backing store (and hence ReadImageData) until after a Flush()
* operation has completed.
*/
PP_Bool ReadImageData([in] PP_Resource device_context_2d,
[in] PP_Resource image,
[in] PP_Point top_left);
/**
* Runs a nested run loop. The plugin will be reentered from this call.
* This function is used for unit testing the API. The normal pattern is to
* issue some asynchronous call that has a callback. Then you call
* RunMessageLoop which will suspend the plugin and go back to processing
* messages, giving the asynchronous operation time to complete. In your
* callback, you save the data and call QuitMessageLoop, which will then
* pop back up and continue with the test. This avoids having to write a
* complicated state machine for simple tests for asynchronous APIs.
*/
void RunMessageLoop([in] PP_Instance instance);
/**
* Posts a quit message for the outermost nested run loop. Use this to
* exit and return back to the caller after you call RunMessageLoop.
*/
void QuitMessageLoop([in] PP_Instance instance);
/**
* Returns the number of live objects (resources + strings + objects)
* associated with this plugin instance. Used for detecting leaks. Returns
* (uint32_t)-1 on failure.
*/
uint32_t GetLiveObjectsForInstance([in] PP_Instance instance);
/**
* Returns PP_TRUE if the plugin is running out-of-process, PP_FALSE
* otherwise.
*/
PP_Bool IsOutOfProcess();
/**
* Passes the input event to the browser, which sends it back to the
* plugin. The plugin should implement PPP_InputEvent and register for
* the input event type.
*
* This method sends an input event through the browser just as if it had
* come from the user. If the browser determines that it is an event for the
* plugin, it will be sent to be handled by the plugin's PPP_InputEvent
* interface. When generating mouse events, make sure the position is within
* the plugin's area on the page. When generating a keyboard event, make sure
* the plugin is focused.
*
* Note that the browser may generate extra input events in order to
* maintain certain invariants, such as always having a "mouse enter" event
* before any other mouse event. Furthermore, the event the plugin receives
* after sending a simulated event will be slightly different from the
* original event. The browser may change the timestamp, add modifiers, and
* slightly alter the mouse position, due to coordinate transforms it
* performs.
*/
void SimulateInputEvent([in] PP_Instance instance,
[in] PP_Resource input_event);
/**
* Returns the URL for the document. This is a safe way to retrieve
* window.location.href.
* If the canonicalized URL is valid, the method will parse the URL
* and fill in the components structure. This pointer may be NULL
* to specify that no component information is necessary.
*/
PP_Var GetDocumentURL([in] PP_Instance instance,
[out] PP_URLComponents_Dev components);
/**
* Fetches up to |array_size| active PP_Vars in the tracker. Returns the
* number of vars in the tracker. The active vars are written to |live_vars|
* contiguously starting at index 0. The vars are not in any particular order.
* If the number of live vars is greater than |array_size|, then an arbitrary
* subset of |array_size| vars is written to |live_vars|. The reference count
* of the returned PP_Vars will *not* be affected by this call.
*/
uint32_t GetLiveVars([size_as=array_size] PP_Var[] live_vars,
[in] uint32_t array_size);
/**
* Sets the threshold size at which point we switch from transmitting
* array buffers in IPC messages to using shared memory. This is only used
* for testing purposes where we need to transmit small buffers using shmem
* (in order to have fast tests). Passing a value of 0 resets the threshold
* to its default. The threshold is in bytes.
*/
void SetMinimumArrayBufferSizeForShmem([in] PP_Instance instance,
[in] uint32_t threshold);
/**
* Run the V8 garbage collector for tests.
*/
void RunV8GC([in] PP_Instance instance);
};
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