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Side by Side Diff: ppapi/c/ppb_input_event.h

Issue 7701004: Fixed spelling errors and changed all references to PP_Resource to be the (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: '' Created 9 years, 3 months ago
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1 /* Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 /* Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 * Use of this source code is governed by a BSD-style license that can be 2 * Use of this source code is governed by a BSD-style license that can be
3 * found in the LICENSE file. 3 * found in the LICENSE file.
4 */ 4 */
5 5
6 /* From ppb_input_event.idl modified Wed Aug 17 11:16:34 2011. */ 6 /* From ppb_input_event.idl modified Wed Aug 24 09:43:38 2011. */
7 7
8 #ifndef PPAPI_C_PPB_INPUT_EVENT_H_ 8 #ifndef PPAPI_C_PPB_INPUT_EVENT_H_
9 #define PPAPI_C_PPB_INPUT_EVENT_H_ 9 #define PPAPI_C_PPB_INPUT_EVENT_H_
10 10
11 #include "ppapi/c/pp_bool.h" 11 #include "ppapi/c/pp_bool.h"
12 #include "ppapi/c/pp_instance.h" 12 #include "ppapi/c/pp_instance.h"
13 #include "ppapi/c/pp_macros.h" 13 #include "ppapi/c/pp_macros.h"
14 #include "ppapi/c/pp_point.h" 14 #include "ppapi/c/pp_point.h"
15 #include "ppapi/c/pp_resource.h" 15 #include "ppapi/c/pp_resource.h"
16 #include "ppapi/c/pp_stdint.h" 16 #include "ppapi/c/pp_stdint.h"
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329 * 329 *
330 * @param event_classes A combination of flags from 330 * @param event_classes A combination of flags from
331 * <code>PP_InputEvent_Class</code> that identify the classes of events the 331 * <code>PP_InputEvent_Class</code> that identify the classes of events the
332 * instance is no longer interested in. 332 * instance is no longer interested in.
333 */ 333 */
334 void (*ClearInputEventRequest)(PP_Instance instance, uint32_t event_classes); 334 void (*ClearInputEventRequest)(PP_Instance instance, uint32_t event_classes);
335 /** 335 /**
336 * IsInputEvent() returns true if the given resource is a valid input event 336 * IsInputEvent() returns true if the given resource is a valid input event
337 * resource. 337 * resource.
338 * 338 *
339 * @param[in] resource A <code>PP_Resource</code>. 339 * @param[in] resource A <code>PP_Resource</code> corresponding to a generic
340 * resource.
340 * 341 *
341 * @return True if the given resource is a valid input event 342 * @return <code>PP_TRUE</code> if the given resource is a valid input event
342 * resource. 343 * resource.
343 */ 344 */
344 PP_Bool (*IsInputEvent)(PP_Resource resource); 345 PP_Bool (*IsInputEvent)(PP_Resource resource);
345 /** 346 /**
346 * GetType() returns the type of input event for the given input event 347 * GetType() returns the type of input event for the given input event
347 * resource. 348 * resource.
348 * 349 *
349 * @param[in] resource A <code>PP_Resource</code> containing the input event. 350 * @param[in] resource A <code>PP_Resource</code> corresponding to an input
351 * event.
350 * 352 *
351 * @return A <code>PP_InputEvent_Type</code> if its a valid input event or 353 * @return A <code>PP_InputEvent_Type</code> if its a valid input event or
352 * <code>PP_INPUTEVENT_TYPE_UNDEFINED</code> if the resource is invalid. 354 * <code>PP_INPUTEVENT_TYPE_UNDEFINED</code> if the resource is invalid.
353 */ 355 */
354 PP_InputEvent_Type (*GetType)(PP_Resource event); 356 PP_InputEvent_Type (*GetType)(PP_Resource event);
355 /** 357 /**
356 * GetTimeStamp() Returns the time that the event was generated. This will be 358 * GetTimeStamp() Returns the time that the event was generated. This will be
357 * before the current time since processing and dispatching the event has 359 * before the current time since processing and dispatching the event has
358 * some overhead. Use this value to compare the times the user generated two 360 * some overhead. Use this value to compare the times the user generated two
359 * events without being sensitive to variable processing time. 361 * events without being sensitive to variable processing time.
360 * 362 *
361 * @param[in] resource A <code>PP_Resource</code> containing the event. 363 * @param[in] resource A <code>PP_Resource</code> corresponding to the event.
362 * 364 *
363 * @return The return value is in time ticks, which is a monotonically 365 * @return The return value is in time ticks, which is a monotonically
364 * increasing clock not related to the wall clock time. It will not change 366 * increasing clock not related to the wall clock time. It will not change
365 * if the user changes their clock or daylight savings time starts, so can 367 * if the user changes their clock or daylight savings time starts, so can
366 * be reliably used to compare events. This means, however, that you can't 368 * be reliably used to compare events. This means, however, that you can't
367 * correlate event times to a particular time of day on the system clock. 369 * correlate event times to a particular time of day on the system clock.
368 */ 370 */
369 PP_TimeTicks (*GetTimeStamp)(PP_Resource event); 371 PP_TimeTicks (*GetTimeStamp)(PP_Resource event);
370 /** 372 /**
371 * GetModifiers() returns a bitfield indicating which modifiers were down 373 * GetModifiers() returns a bitfield indicating which modifiers were down
372 * at the time of the event. This is a combination of the flags in the 374 * at the time of the event. This is a combination of the flags in the
373 * <code>PP_InputEvent_Modifier</code> enum. 375 * <code>PP_InputEvent_Modifier</code> enum.
374 * 376 *
375 * @param[in] resource A <code>PP_Resource</code> containing the input event. 377 * @param[in] resource A <code>PP_Resource</code> corresponding to an input
378 * event.
376 * 379 *
377 * @return The modifiers associated with the event, or 0 if the given 380 * @return The modifiers associated with the event, or 0 if the given
378 * resource is not a valid event resource. 381 * resource is not a valid event resource.
379 */ 382 */
380 uint32_t (*GetModifiers)(PP_Resource event); 383 uint32_t (*GetModifiers)(PP_Resource event);
381 }; 384 };
382 385
383 /** 386 /**
384 * The <code>PPB_MouseInputEvent</code> interface contains pointers to several 387 * The <code>PPB_MouseInputEvent</code> interface contains pointers to several
385 * functions related to mouse input events. 388 * functions related to mouse input events.
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415 PP_Resource (*Create)(PP_Instance instance, 418 PP_Resource (*Create)(PP_Instance instance,
416 PP_InputEvent_Type type, 419 PP_InputEvent_Type type,
417 PP_TimeTicks time_stamp, 420 PP_TimeTicks time_stamp,
418 uint32_t modifiers, 421 uint32_t modifiers,
419 PP_InputEvent_MouseButton mouse_button, 422 PP_InputEvent_MouseButton mouse_button,
420 const struct PP_Point* mouse_position, 423 const struct PP_Point* mouse_position,
421 int32_t click_count); 424 int32_t click_count);
422 /** 425 /**
423 * IsMouseInputEvent() determines if a resource is a mouse event. 426 * IsMouseInputEvent() determines if a resource is a mouse event.
424 * 427 *
425 * @param[in] resource A <code>PP_Resource</code> containing the event. 428 * @param[in] resource A <code>PP_Resource</code> corresponding to an event.
426 * 429 *
427 * @return <code>PP_TRUE</code> if the given resource is a valid mouse input 430 * @return <code>PP_TRUE</code> if the given resource is a valid mouse input
428 * event, otherwise <code>PP_FALSE</code>. 431 * event, otherwise <code>PP_FALSE</code>.
429 */ 432 */
430 PP_Bool (*IsMouseInputEvent)(PP_Resource resource); 433 PP_Bool (*IsMouseInputEvent)(PP_Resource resource);
431 /** 434 /**
432 * GetButton() returns the mouse button that generated a mouse down or up 435 * GetButton() returns the mouse button that generated a mouse down or up
433 * event. 436 * event.
434 * 437 *
435 * @param[in] mouse_event A <code>PP_Resource</code> containing the mouse 438 * @param[in] mouse_event A <code>PP_Resource</code> corresponding to a
436 * event. 439 * mouse event.
437 * 440 *
438 * @return The mouse button associated with mouse down and up events. This 441 * @return The mouse button associated with mouse down and up events. This
439 * value will be <code>PP_EVENT_MOUSEBUTTON_NONE</code> for mouse move, 442 * value will be <code>PP_EVENT_MOUSEBUTTON_NONE</code> for mouse move,
440 * enter, and leave events, and for all non-mouse events. 443 * enter, and leave events, and for all non-mouse events.
441 */ 444 */
442 PP_InputEvent_MouseButton (*GetButton)(PP_Resource mouse_event); 445 PP_InputEvent_MouseButton (*GetButton)(PP_Resource mouse_event);
443 /** 446 /**
444 * GetPosition() returns the pixel location of a mouse input event. 447 * GetPosition() returns the pixel location of a mouse input event.
445 * 448 *
446 * @param[in] mouse_event A <code>PP_Resource</code> containing the mouse 449 * @param[in] mouse_event A <code>PP_Resource</code> corresponding to an
447 * event. 450 * mouse event.
448 * 451 *
449 * @return The point associated with the mouse event, relative to the upper- 452 * @return The point associated with the mouse event, relative to the upper-
450 * left of the instance receiving the event. These values can be negative for 453 * left of the instance receiving the event. These values can be negative for
451 * mouse drags. The return value will be (0, 0) for non-mouse events. 454 * mouse drags. The return value will be (0, 0) for non-mouse events.
452 */ 455 */
453 struct PP_Point (*GetPosition)(PP_Resource mouse_event); 456 struct PP_Point (*GetPosition)(PP_Resource mouse_event);
454 /** 457 /**
455 * TODO(brettw) figure out exactly what this means. 458 * TODO(brettw) figure out exactly what this means.
456 */ 459 */
457 int32_t (*GetClickCount)(PP_Resource mouse_event); 460 int32_t (*GetClickCount)(PP_Resource mouse_event);
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489 */ 492 */
490 PP_Resource (*Create)(PP_Instance instance, 493 PP_Resource (*Create)(PP_Instance instance,
491 PP_TimeTicks time_stamp, 494 PP_TimeTicks time_stamp,
492 uint32_t modifiers, 495 uint32_t modifiers,
493 const struct PP_FloatPoint* wheel_delta, 496 const struct PP_FloatPoint* wheel_delta,
494 const struct PP_FloatPoint* wheel_ticks, 497 const struct PP_FloatPoint* wheel_ticks,
495 PP_Bool scroll_by_page); 498 PP_Bool scroll_by_page);
496 /** 499 /**
497 * IsWheelInputEvent() determines if a resource is a wheel event. 500 * IsWheelInputEvent() determines if a resource is a wheel event.
498 * 501 *
499 * @param[in] wheel_event A <code>PP_Resource</code> containing the event. 502 * @param[in] wheel_event A <code>PP_Resource</code> corresponding to an
503 * event.
500 * 504 *
501 * @return <code>PP_TRUE</code> if the given resource is a valid wheel input 505 * @return <code>PP_TRUE</code> if the given resource is a valid wheel input
502 * event. 506 * event.
503 */ 507 */
504 PP_Bool (*IsWheelInputEvent)(PP_Resource resource); 508 PP_Bool (*IsWheelInputEvent)(PP_Resource resource);
505 /** 509 /**
506 * GetDelta() returns the amount vertically and horizontally the user has 510 * GetDelta() returns the amount vertically and horizontally the user has
507 * requested to scroll by with their mouse wheel. A scroll down or to the 511 * requested to scroll by with their mouse wheel. A scroll down or to the
508 * right (where the content moves up or left) is represented as positive 512 * right (where the content moves up or left) is represented as positive
509 * values, and a scroll up or to the left (where the content moves down or 513 * values, and a scroll up or to the left (where the content moves down or
510 * right) is represented as negative values. 514 * right) is represented as negative values.
511 * 515 *
512 * This amount is system dependent and will take into account the user's 516 * This amount is system dependent and will take into account the user's
513 * preferred scroll sensitivity and potentially also nonlinear acceleration 517 * preferred scroll sensitivity and potentially also nonlinear acceleration
514 * based on the speed of the scrolling. 518 * based on the speed of the scrolling.
515 * 519 *
516 * Devices will be of varying resolution. Some mice with large detents will 520 * Devices will be of varying resolution. Some mice with large detents will
517 * only generate integer scroll amounts. But fractional values are also 521 * only generate integer scroll amounts. But fractional values are also
518 * possible, for example, on some trackpads and newer mice that don't have 522 * possible, for example, on some trackpads and newer mice that don't have
519 * "clicks". 523 * "clicks".
520 * 524 *
521 * @param[in] wheel_event A <code>PP_Resource</code> containing the wheel 525 * @param[in] wheel_event A <code>PP_Resource</code> corresponding to a wheel
522 * event. 526 * event.
523 * 527 *
524 * @return The vertical and horizontal scroll values. The units are either in 528 * @return The vertical and horizontal scroll values. The units are either in
525 * pixels (when scroll_by_page is false) or pages (when scroll_by_page is 529 * pixels (when scroll_by_page is false) or pages (when scroll_by_page is
526 * true). For example, y = -3 means scroll up 3 pixels when scroll_by_page 530 * true). For example, y = -3 means scroll up 3 pixels when scroll_by_page
527 * is false, and scroll up 3 pages when scroll_by_page is true. 531 * is false, and scroll up 3 pages when scroll_by_page is true.
528 */ 532 */
529 struct PP_FloatPoint (*GetDelta)(PP_Resource wheel_event); 533 struct PP_FloatPoint (*GetDelta)(PP_Resource wheel_event);
530 /** 534 /**
531 * GetTicks() returns the number of "clicks" of the scroll wheel 535 * GetTicks() returns the number of "clicks" of the scroll wheel
532 * that have produced the event. The value may have system-specific 536 * that have produced the event. The value may have system-specific
533 * acceleration applied to it, depending on the device. The positive and 537 * acceleration applied to it, depending on the device. The positive and
534 * negative meanings are the same as for GetDelta(). 538 * negative meanings are the same as for GetDelta().
535 * 539 *
536 * If you are scrolling, you probably want to use the delta values. These 540 * If you are scrolling, you probably want to use the delta values. These
537 * tick events can be useful if you aren't doing actual scrolling and don't 541 * tick events can be useful if you aren't doing actual scrolling and don't
538 * want or pixel values. An example may be cycling between different items in 542 * want or pixel values. An example may be cycling between different items in
539 * a game. 543 * a game.
540 * 544 *
541 * @param[in] wheel_event A <code>PP_Resource</code> containing the wheel 545 * @param[in] wheel_event A <code>PP_Resource</code> corresponding to a wheel
542 * event. 546 * event.
543 * 547 *
544 * @return The number of "clicks" of the scroll wheel. You may receive 548 * @return The number of "clicks" of the scroll wheel. You may receive
545 * fractional values for the wheel ticks if the mouse wheel is high 549 * fractional values for the wheel ticks if the mouse wheel is high
546 * resolution or doesn't have "clicks". If your program wants discrete 550 * resolution or doesn't have "clicks". If your program wants discrete
547 * events (as in the "picking items" example) you should accumulate 551 * events (as in the "picking items" example) you should accumulate
548 * fractional click values from multiple messages until the total value 552 * fractional click values from multiple messages until the total value
549 * reaches positive or negative one. This should represent a similar amount 553 * reaches positive or negative one. This should represent a similar amount
550 * of scrolling as for a mouse that has a discrete mouse wheel. 554 * of scrolling as for a mouse that has a discrete mouse wheel.
551 */ 555 */
552 struct PP_FloatPoint (*GetTicks)(PP_Resource wheel_event); 556 struct PP_FloatPoint (*GetTicks)(PP_Resource wheel_event);
553 /** 557 /**
554 * GetScrollByPage() indicates if the scroll delta x/y indicates pages or 558 * GetScrollByPage() indicates if the scroll delta x/y indicates pages or
555 * lines to scroll by. 559 * lines to scroll by.
556 * 560 *
557 * @param[in] wheel_event A <code>PP_Resource</code> containing the wheel 561 * @param[in] wheel_event A <code>PP_Resource</code> corresponding to a wheel
558 * event. 562 * event.
559 * 563 *
560 * @return <code>PP_TRUE</code> if the event is a wheel event and the user is 564 * @return <code>PP_TRUE</code> if the event is a wheel event and the user is
561 * scrolling by pages. <code>PP_FALSE</code> if not or if the resource is not 565 * scrolling by pages. <code>PP_FALSE</code> if not or if the resource is not
562 * a wheel event. 566 * a wheel event.
563 */ 567 */
564 PP_Bool (*GetScrollByPage)(PP_Resource wheel_event); 568 PP_Bool (*GetScrollByPage)(PP_Resource wheel_event);
565 }; 569 };
566 570
567 /** 571 /**
(...skipping 30 matching lines...) Expand all
598 */ 602 */
599 PP_Resource (*Create)(PP_Instance instance, 603 PP_Resource (*Create)(PP_Instance instance,
600 PP_InputEvent_Type type, 604 PP_InputEvent_Type type,
601 PP_TimeTicks time_stamp, 605 PP_TimeTicks time_stamp,
602 uint32_t modifiers, 606 uint32_t modifiers,
603 uint32_t key_code, 607 uint32_t key_code,
604 struct PP_Var character_text); 608 struct PP_Var character_text);
605 /** 609 /**
606 * IsKeyboardInputEvent() determines if a resource is a keyboard event. 610 * IsKeyboardInputEvent() determines if a resource is a keyboard event.
607 * 611 *
608 * @param[in] resource A <code>PP_Resource</code> containing the event. 612 * @param[in] resource A <code>PP_Resource</code> corresponding to an event.
609 * 613 *
610 * @return <code>PP_TRUE</code> if the given resource is a valid input event. 614 * @return <code>PP_TRUE</code> if the given resource is a valid input event.
611 */ 615 */
612 PP_Bool (*IsKeyboardInputEvent)(PP_Resource resource); 616 PP_Bool (*IsKeyboardInputEvent)(PP_Resource resource);
613 /** 617 /**
614 * GetKeyCode() returns the DOM keyCode field for the keyboard event. 618 * GetKeyCode() returns the DOM keyCode field for the keyboard event.
615 * Chrome populates this with the Windows-style Virtual Key code of the key. 619 * Chrome populates this with the Windows-style Virtual Key code of the key.
616 * 620 *
617 * @param[in] key_event A <code>PP_Resource</code> containing the keyboard 621 * @param[in] key_event A <code>PP_Resource</code> corresponding to a
618 * event. 622 * keyboard event.
619 * 623 *
620 * @return The DOM keyCode field for the keyboard event. 624 * @return The DOM keyCode field for the keyboard event.
621 */ 625 */
622 uint32_t (*GetKeyCode)(PP_Resource key_event); 626 uint32_t (*GetKeyCode)(PP_Resource key_event);
623 /** 627 /**
624 * GetCharacterText() returns the typed character as a UTF-8 string for the 628 * GetCharacterText() returns the typed character as a UTF-8 string for the
625 * given character event. 629 * given character event.
626 * 630 *
627 * @param[in] character_event A <code>PP_Resource</code> containing the 631 * @param[in] character_event A <code>PP_Resource</code> corresponding to a
628 * keyboard event. 632 * keyboard event.
629 * 633 *
630 * @return A string var representing a single typed character for character 634 * @return A string var representing a single typed character for character
631 * input events. For non-character input events the return value will be an 635 * input events. For non-character input events the return value will be an
632 * undefined var. 636 * undefined var.
633 */ 637 */
634 struct PP_Var (*GetCharacterText)(PP_Resource character_event); 638 struct PP_Var (*GetCharacterText)(PP_Resource character_event);
635 }; 639 };
636 /** 640 /**
637 * @} 641 * @}
638 */ 642 */
639 643
640 #endif /* PPAPI_C_PPB_INPUT_EVENT_H_ */ 644 #endif /* PPAPI_C_PPB_INPUT_EVENT_H_ */
641 645
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