native_client_sdk/src/doc/devguide/coding/view-focus-input-events.rst - Issue 476793002: Per P0 reqs add launch pts + make download obvious. Also misc cpy edits.

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Issue 476793002: Per P0 reqs add launch pts + make download obvious. Also misc cpy edits. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: CL synced with master. Created 6 years, 4 months ago

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1 .. _view_focus_input_events:	1 .. _view_focus_input_events:

2	2

3 :template: standard_nacl_api	3 :template: standard_nacl_api

4	4

5 ####################################	5 ####################################

6 View Change, Focus, and Input Events	6 View Change, Focus, and Input Events

7 ####################################	7 ####################################

8	8

9 .. contents::	9 .. contents::

10 :local:	10 :local:

11 :backlinks: none	11 :backlinks: none

12 :depth: 2	12 :depth: 2

13	13

14 This chapter describes view change, focus, and input event handling for a	14 This section describes view change, focus, and input event handling for a

15 Native Client module. The chapter assumes you are familiar with the	15 Native Client module. The section assumes you are familiar with the

16 material presented in the :doc:`Technical Overview <../../overview>`.	16 material presented in the :doc:`Technical Overview <../../overview>`.

17	17

18 There are two examples used in this chapter to illustrate basic	18 There are two examples used in this section to illustrate basic

19 programming techniques. The ``input_events`` example is used to	19 programming techniques. The ``input_events`` example is used to

20 illustrate how your module can react to keyboard and mouse input	20 illustrate how your module can react to keyboard and mouse input

21 event. The ``mouse_lock`` example is used to illustrate how your module	21 event. The ``mouse_lock`` example is used to illustrate how your module

22 can react to view change events. You can find these examples in the	22 can react to view change events. You can find these examples in the

23 ``/pepper_<version>/examples/api/input_event`` and	23 ``/pepper_<version>/examples/api/input_event`` and

24 ``/pepper_<version>/examples/api/mouse_lock`` directories in the Native Client	24 ``/pepper_<version>/examples/api/mouse_lock`` directories in the Native Client

25 SDK. There is also the ppapi_simple library that can be used to to implement	25 SDK. There is also the ppapi_simple library that can be used to to implement

26 most of the boiler plate. The ``pi_generator`` example in	26 most of the boiler plate. The ``pi_generator`` example in

27 ``/pepper_<version>/examples/demo/pi_generator`` uses ppapi_simple to manage	27 ``/pepper_<version>/examples/demo/pi_generator`` uses ppapi_simple to manage

28 view change events and 2D graphics.	28 view change events and 2D graphics.

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325	325

326 Threading and blocking	326 Threading and blocking

327 ----------------------	327 ----------------------

328	328

329 ``HandleInputEvent()`` in this example runs on the main module thread.	329 ``HandleInputEvent()`` in this example runs on the main module thread.

330 However, the bulk of the work happens on a separate worker thread (see	330 However, the bulk of the work happens on a separate worker thread (see

331 ``ProcessEventOnWorkerThread``). ``HandleInputEvent()`` puts events in	331 ``ProcessEventOnWorkerThread``). ``HandleInputEvent()`` puts events in

332 the ``event_queue_`` and the worker thread takes events from the	332 the ``event_queue_`` and the worker thread takes events from the

333 ``event_queue_``. This processing happens independently of the main	333 ``event_queue_``. This processing happens independently of the main

334 thread, so as not to slow down the browser.	334 thread, so as not to slow down the browser.

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