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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 UI_VIEWS_VIEW_H_ | 5 #ifndef UI_VIEWS_VIEW_H_ |
| 6 #define UI_VIEWS_VIEW_H_ | 6 #define UI_VIEWS_VIEW_H_ |
| 7 | 7 |
| 8 #include <algorithm> | 8 #include <algorithm> |
| 9 #include <map> | 9 #include <map> |
| 10 #include <set> | 10 #include <set> |
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| 549 | 549 |
| 550 // TODO(tdanderson): GetEventHandlerForPoint() and GetEventHandlerForRect() | 550 // TODO(tdanderson): GetEventHandlerForPoint() and GetEventHandlerForRect() |
| 551 // will be removed once their logic is moved into | 551 // will be removed once their logic is moved into |
| 552 // ViewTargeter and its derived classes. See | 552 // ViewTargeter and its derived classes. See |
| 553 // crbug.com/355425. | 553 // crbug.com/355425. |
| 554 | 554 |
| 555 // Convenience functions which calls into GetEventHandler() with | 555 // Convenience functions which calls into GetEventHandler() with |
| 556 // a 1x1 rect centered at |point|. | 556 // a 1x1 rect centered at |point|. |
| 557 View* GetEventHandlerForPoint(const gfx::Point& point); | 557 View* GetEventHandlerForPoint(const gfx::Point& point); |
| 558 | 558 |
| 559 // Terry - update doc |
| 560 |
| 559 // If point-based targeting should be used, return the deepest visible | 561 // If point-based targeting should be used, return the deepest visible |
| 560 // descendant that contains the center point of |rect|. | 562 // descendant that contains the center point of |rect|. |
| 561 // If rect-based targeting (i.e., fuzzing) should be used, return the | 563 // If rect-based targeting (i.e., fuzzing) should be used, return the |
| 562 // closest visible descendant having at least kRectTargetOverlap of | 564 // closest visible descendant having at least kRectTargetOverlap of |
| 563 // its area covered by |rect|. If no such descendant exists, return the | 565 // its area covered by |rect|. If no such descendant exists, return the |
| 564 // deepest visible descendant that contains the center point of |rect|. | 566 // deepest visible descendant that contains the center point of |rect|. |
| 565 // See http://goo.gl/3Jp2BD for more information about rect-based targeting. | 567 // See http://goo.gl/3Jp2BD for more information about rect-based targeting. |
| 566 virtual View* GetEventHandlerForRect(const gfx::Rect& rect); | 568 View* GetEventHandlerForRect(const gfx::Rect& rect); |
| 567 | 569 |
| 568 // Returns the deepest visible descendant that contains the specified point | 570 // Returns the deepest visible descendant that contains the specified point |
| 569 // and supports tooltips. If the view does not contain the point, returns | 571 // and supports tooltips. If the view does not contain the point, returns |
| 570 // NULL. | 572 // NULL. |
| 571 virtual View* GetTooltipHandlerForPoint(const gfx::Point& point); | 573 virtual View* GetTooltipHandlerForPoint(const gfx::Point& point); |
| 572 | 574 |
| 573 // Return the cursor that should be used for this view or the default cursor. | 575 // Return the cursor that should be used for this view or the default cursor. |
| 574 // The event location is in the receiver's coordinate system. The caller is | 576 // The event location is in the receiver's coordinate system. The caller is |
| 575 // responsible for managing the lifetime of the returned object, though that | 577 // responsible for managing the lifetime of the returned object, though that |
| 576 // lifetime may vary from platform to platform. On Windows and Aura, | 578 // lifetime may vary from platform to platform. On Windows and Aura, |
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| 1587 // Belongs to this view, but it's reference-counted on some platforms | 1589 // Belongs to this view, but it's reference-counted on some platforms |
| 1588 // so we can't use a scoped_ptr. It's dereferenced in the destructor. | 1590 // so we can't use a scoped_ptr. It's dereferenced in the destructor. |
| 1589 NativeViewAccessibility* native_view_accessibility_; | 1591 NativeViewAccessibility* native_view_accessibility_; |
| 1590 | 1592 |
| 1591 DISALLOW_COPY_AND_ASSIGN(View); | 1593 DISALLOW_COPY_AND_ASSIGN(View); |
| 1592 }; | 1594 }; |
| 1593 | 1595 |
| 1594 } // namespace views | 1596 } // namespace views |
| 1595 | 1597 |
| 1596 #endif // UI_VIEWS_VIEW_H_ | 1598 #endif // UI_VIEWS_VIEW_H_ |
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