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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2009 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 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_ | 5 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_ |
6 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_ | 6 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_ |
7 | 7 |
8 #include <deque> | 8 #include <deque> |
9 | 9 |
10 #include "app/gfx/native_widget_types.h" | 10 #include "app/gfx/native_widget_types.h" |
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440 | 440 |
441 // Scrolls the given |clip_rect| in the backing by the given dx/dy amount. The | 441 // Scrolls the given |clip_rect| in the backing by the given dx/dy amount. The |
442 // |dib| and its corresponding location |bitmap_rect| in the backing store | 442 // |dib| and its corresponding location |bitmap_rect| in the backing store |
443 // is the newly painted pixels by the renderer. | 443 // is the newly painted pixels by the renderer. |
444 void ScrollBackingStoreRect(TransportDIB* dib, | 444 void ScrollBackingStoreRect(TransportDIB* dib, |
445 const gfx::Rect& bitmap_rect, | 445 const gfx::Rect& bitmap_rect, |
446 int dx, int dy, | 446 int dx, int dy, |
447 const gfx::Rect& clip_rect, | 447 const gfx::Rect& clip_rect, |
448 const gfx::Size& view_size); | 448 const gfx::Size& view_size); |
449 | 449 |
| 450 // Called by OnMsgInputEventAck() to process a keyboard event ack message. |
| 451 void ProcessKeyboardEventAck(int type, bool processed); |
| 452 |
450 // The View associated with the RenderViewHost. The lifetime of this object | 453 // The View associated with the RenderViewHost. The lifetime of this object |
451 // is associated with the lifetime of the Render process. If the Renderer | 454 // is associated with the lifetime of the Render process. If the Renderer |
452 // crashes, its View is destroyed and this pointer becomes NULL, even though | 455 // crashes, its View is destroyed and this pointer becomes NULL, even though |
453 // render_view_host_ lives on to load another URL (creating a new View while | 456 // render_view_host_ lives on to load another URL (creating a new View while |
454 // doing so). | 457 // doing so). |
455 RenderWidgetHostView* view_; | 458 RenderWidgetHostView* view_; |
456 | 459 |
457 // Created during construction but initialized during Init*(). Therefore, it | 460 // Created during construction but initialized during Init*(). Therefore, it |
458 // is guaranteed never to be NULL, but its channel may be NULL if the | 461 // is guaranteed never to be NULL, but its channel may be NULL if the |
459 // renderer crashed, so you must always check that. | 462 // renderer crashed, so you must always check that. |
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570 // shall not send the following sequence of Char events, which was generated | 573 // shall not send the following sequence of Char events, which was generated |
571 // by this RawKeyDown event, to the renderer. Otherwise the renderer may | 574 // by this RawKeyDown event, to the renderer. Otherwise the renderer may |
572 // handle the Char events and cause unexpected behavior. | 575 // handle the Char events and cause unexpected behavior. |
573 // For example, pressing alt-2 may let the browser switch to the second tab, | 576 // For example, pressing alt-2 may let the browser switch to the second tab, |
574 // but the Char event generated by alt-2 may also activate a HTML element | 577 // but the Char event generated by alt-2 may also activate a HTML element |
575 // if its accesskey happens to be "2", then the user may get confused when | 578 // if its accesskey happens to be "2", then the user may get confused when |
576 // switching back to the original tab, because the content may already be | 579 // switching back to the original tab, because the content may already be |
577 // changed. | 580 // changed. |
578 bool suppress_next_char_events_; | 581 bool suppress_next_char_events_; |
579 | 582 |
| 583 // True if the PaintRect_ACK message for the last PaintRect message is still |
| 584 // not sent yet. This is used for optimizing the painting overhead when there |
| 585 // are many pending key events in the queue. |
| 586 bool paint_ack_postponed_; |
| 587 |
| 588 // The time when a PaintRect_ACK message is postponed, so that we can send the |
| 589 // message after a certain duration. |
| 590 base::TimeTicks paint_ack_postponed_time_; |
| 591 |
580 // During the call to some methods, eg. OnMsgInputEventAck, this | 592 // During the call to some methods, eg. OnMsgInputEventAck, this |
581 // RenderWidgetHost object may be destroyed before executing some code that | 593 // RenderWidgetHost object may be destroyed before executing some code that |
582 // still want to access this object. To avoid this situation, |death_flag_| | 594 // still want to access this object. To avoid this situation, |death_flag_| |
583 // shall be pointed to a local variable in the method, and then |*death_flag_| | 595 // shall be pointed to a local variable in the method, and then |*death_flag_| |
584 // will be set to true when destroying this RenderWidgetHost object, then the | 596 // will be set to true when destroying this RenderWidgetHost object, then the |
585 // method shall exit immediately when |*death_flag_| becomes true. | 597 // method shall exit immediately when |*death_flag_| becomes true. |
586 bool* death_flag_; | 598 bool* death_flag_; |
587 | 599 |
588 DISALLOW_COPY_AND_ASSIGN(RenderWidgetHost); | 600 DISALLOW_COPY_AND_ASSIGN(RenderWidgetHost); |
589 }; | 601 }; |
590 | 602 |
591 #endif // CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_ | 603 #endif // CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_ |
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