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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 #include "content/browser/renderer_host/render_widget_host_input_event_router.h" | 5 #include "content/browser/renderer_host/render_widget_host_input_event_router.h" |
| 6 | 6 |
| 7 #include <vector> | 7 #include <vector> |
| 8 | 8 |
| 9 #include "base/metrics/histogram_macros.h" | 9 #include "base/metrics/histogram_macros.h" |
| 10 | 10 |
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| 449 RenderWidgetHostViewBase* common_ancestor = nullptr; | 449 RenderWidgetHostViewBase* common_ancestor = nullptr; |
| 450 while (entered_views.size() > 0 && exited_views.size() > 0 && | 450 while (entered_views.size() > 0 && exited_views.size() > 0 && |
| 451 entered_views.back() == exited_views.back()) { | 451 entered_views.back() == exited_views.back()) { |
| 452 common_ancestor = entered_views.back(); | 452 common_ancestor = entered_views.back(); |
| 453 entered_views.pop_back(); | 453 entered_views.pop_back(); |
| 454 exited_views.pop_back(); | 454 exited_views.pop_back(); |
| 455 } | 455 } |
| 456 | 456 |
| 457 gfx::Point transformed_point; | 457 gfx::Point transformed_point; |
| 458 // Send MouseLeaves. | 458 // Send MouseLeaves. |
| 459 for (auto view : exited_views) { | 459 for (auto* view : exited_views) { |
| 460 blink::WebMouseEvent mouse_leave(*event); | 460 blink::WebMouseEvent mouse_leave(*event); |
| 461 mouse_leave.setType(blink::WebInputEvent::MouseLeave); | 461 mouse_leave.setType(blink::WebInputEvent::MouseLeave); |
| 462 // There is a chance of a race if the last target has recently created a | 462 // There is a chance of a race if the last target has recently created a |
| 463 // new compositor surface. The SurfaceID for that might not have | 463 // new compositor surface. The SurfaceID for that might not have |
| 464 // propagated to its embedding surface, which makes it impossible to | 464 // propagated to its embedding surface, which makes it impossible to |
| 465 // compute the transformation for it | 465 // compute the transformation for it |
| 466 if (!root_view->TransformPointToCoordSpaceForView( | 466 if (!root_view->TransformPointToCoordSpaceForView( |
| 467 gfx::Point(event->x, event->y), view, &transformed_point)) | 467 gfx::Point(event->x, event->y), view, &transformed_point)) |
| 468 transformed_point = gfx::Point(); | 468 transformed_point = gfx::Point(); |
| 469 mouse_leave.x = transformed_point.x(); | 469 mouse_leave.x = transformed_point.x(); |
| 470 mouse_leave.y = transformed_point.y(); | 470 mouse_leave.y = transformed_point.y(); |
| 471 view->ProcessMouseEvent(mouse_leave, ui::LatencyInfo()); | 471 view->ProcessMouseEvent(mouse_leave, ui::LatencyInfo()); |
| 472 } | 472 } |
| 473 | 473 |
| 474 // The ancestor might need to trigger MouseOut handlers. | 474 // The ancestor might need to trigger MouseOut handlers. |
| 475 if (common_ancestor && common_ancestor != target) { | 475 if (common_ancestor && common_ancestor != target) { |
| 476 blink::WebMouseEvent mouse_move(*event); | 476 blink::WebMouseEvent mouse_move(*event); |
| 477 mouse_move.setType(blink::WebInputEvent::MouseMove); | 477 mouse_move.setType(blink::WebInputEvent::MouseMove); |
| 478 if (!root_view->TransformPointToCoordSpaceForView( | 478 if (!root_view->TransformPointToCoordSpaceForView( |
| 479 gfx::Point(event->x, event->y), common_ancestor, | 479 gfx::Point(event->x, event->y), common_ancestor, |
| 480 &transformed_point)) | 480 &transformed_point)) |
| 481 transformed_point = gfx::Point(); | 481 transformed_point = gfx::Point(); |
| 482 mouse_move.x = transformed_point.x(); | 482 mouse_move.x = transformed_point.x(); |
| 483 mouse_move.y = transformed_point.y(); | 483 mouse_move.y = transformed_point.y(); |
| 484 common_ancestor->ProcessMouseEvent(mouse_move, ui::LatencyInfo()); | 484 common_ancestor->ProcessMouseEvent(mouse_move, ui::LatencyInfo()); |
| 485 } | 485 } |
| 486 | 486 |
| 487 // Send MouseMoves to trigger MouseEnter handlers. | 487 // Send MouseMoves to trigger MouseEnter handlers. |
| 488 for (auto view : entered_views) { | 488 for (auto* view : entered_views) { |
| 489 if (view == target) | 489 if (view == target) |
| 490 continue; | 490 continue; |
| 491 blink::WebMouseEvent mouse_enter(*event); | 491 blink::WebMouseEvent mouse_enter(*event); |
| 492 mouse_enter.setType(blink::WebInputEvent::MouseMove); | 492 mouse_enter.setType(blink::WebInputEvent::MouseMove); |
| 493 if (!root_view->TransformPointToCoordSpaceForView( | 493 if (!root_view->TransformPointToCoordSpaceForView( |
| 494 gfx::Point(event->x, event->y), view, &transformed_point)) | 494 gfx::Point(event->x, event->y), view, &transformed_point)) |
| 495 transformed_point = gfx::Point(); | 495 transformed_point = gfx::Point(); |
| 496 mouse_enter.x = transformed_point.x(); | 496 mouse_enter.x = transformed_point.x(); |
| 497 mouse_enter.y = transformed_point.y(); | 497 mouse_enter.y = transformed_point.y(); |
| 498 view->ProcessMouseEvent(mouse_enter, ui::LatencyInfo()); | 498 view->ProcessMouseEvent(mouse_enter, ui::LatencyInfo()); |
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| 668 const ui::LatencyInfo& latency) { | 668 const ui::LatencyInfo& latency) { |
| 669 DCHECK_EQ(blink::WebGestureDeviceTouchscreen, event->sourceDevice); | 669 DCHECK_EQ(blink::WebGestureDeviceTouchscreen, event->sourceDevice); |
| 670 | 670 |
| 671 if (event->type() == blink::WebInputEvent::GesturePinchBegin) { | 671 if (event->type() == blink::WebInputEvent::GesturePinchBegin) { |
| 672 in_touchscreen_gesture_pinch_ = true; | 672 in_touchscreen_gesture_pinch_ = true; |
| 673 // If the root view wasn't already receiving the gesture stream, then we | 673 // If the root view wasn't already receiving the gesture stream, then we |
| 674 // need to wrap the diverted pinch events in a GestureScrollBegin/End. | 674 // need to wrap the diverted pinch events in a GestureScrollBegin/End. |
| 675 // TODO(wjmaclean,kenrb,tdresser): When scroll latching lands, we can | 675 // TODO(wjmaclean,kenrb,tdresser): When scroll latching lands, we can |
| 676 // revisit how this code should work. | 676 // revisit how this code should work. |
| 677 // https://crbug.com/526463 | 677 // https://crbug.com/526463 |
| 678 auto rwhi = | 678 auto* rwhi = |
| 679 static_cast<RenderWidgetHostImpl*>(root_view->GetRenderWidgetHost()); | 679 static_cast<RenderWidgetHostImpl*>(root_view->GetRenderWidgetHost()); |
| 680 // If the root view is the current gesture target, then we explicitly don't | 680 // If the root view is the current gesture target, then we explicitly don't |
| 681 // send a GestureScrollBegin, as by the time we see GesturePinchBegin there | 681 // send a GestureScrollBegin, as by the time we see GesturePinchBegin there |
| 682 // should have been one. | 682 // should have been one. |
| 683 if (root_view != touchscreen_gesture_target_.target && | 683 if (root_view != touchscreen_gesture_target_.target && |
| 684 !rwhi->is_in_touchscreen_gesture_scroll()) { | 684 !rwhi->is_in_touchscreen_gesture_scroll()) { |
| 685 gesture_pinch_did_send_scroll_begin_ = true; | 685 gesture_pinch_did_send_scroll_begin_ = true; |
| 686 SendGestureScrollBegin(root_view, *event); | 686 SendGestureScrollBegin(root_view, *event); |
| 687 } | 687 } |
| 688 } | 688 } |
| 689 | 689 |
| 690 if (in_touchscreen_gesture_pinch_) { | 690 if (in_touchscreen_gesture_pinch_) { |
| 691 root_view->ProcessGestureEvent(*event, latency); | 691 root_view->ProcessGestureEvent(*event, latency); |
| 692 if (event->type() == blink::WebInputEvent::GesturePinchEnd) { | 692 if (event->type() == blink::WebInputEvent::GesturePinchEnd) { |
| 693 in_touchscreen_gesture_pinch_ = false; | 693 in_touchscreen_gesture_pinch_ = false; |
| 694 // If the root view wasn't already receiving the gesture stream, then we | 694 // If the root view wasn't already receiving the gesture stream, then we |
| 695 // need to wrap the diverted pinch events in a GestureScrollBegin/End. | 695 // need to wrap the diverted pinch events in a GestureScrollBegin/End. |
| 696 auto rwhi = | 696 auto* rwhi = |
| 697 static_cast<RenderWidgetHostImpl*>(root_view->GetRenderWidgetHost()); | 697 static_cast<RenderWidgetHostImpl*>(root_view->GetRenderWidgetHost()); |
| 698 if (root_view != touchscreen_gesture_target_.target && | 698 if (root_view != touchscreen_gesture_target_.target && |
| 699 gesture_pinch_did_send_scroll_begin_ && | 699 gesture_pinch_did_send_scroll_begin_ && |
| 700 rwhi->is_in_touchscreen_gesture_scroll()) { | 700 rwhi->is_in_touchscreen_gesture_scroll()) { |
| 701 SendGestureScrollEnd(root_view, *event); | 701 SendGestureScrollEnd(root_view, *event); |
| 702 } | 702 } |
| 703 gesture_pinch_did_send_scroll_begin_ = false; | 703 gesture_pinch_did_send_scroll_begin_ = false; |
| 704 } | 704 } |
| 705 return; | 705 return; |
| 706 } | 706 } |
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| 779 if (!touchpad_gesture_target_.target) | 779 if (!touchpad_gesture_target_.target) |
| 780 return; | 780 return; |
| 781 | 781 |
| 782 // TODO(mohsen): Add tests to check event location. | 782 // TODO(mohsen): Add tests to check event location. |
| 783 event->x += touchpad_gesture_target_.delta.x(); | 783 event->x += touchpad_gesture_target_.delta.x(); |
| 784 event->y += touchpad_gesture_target_.delta.y(); | 784 event->y += touchpad_gesture_target_.delta.y(); |
| 785 touchpad_gesture_target_.target->ProcessGestureEvent(*event, latency); | 785 touchpad_gesture_target_.target->ProcessGestureEvent(*event, latency); |
| 786 } | 786 } |
| 787 | 787 |
| 788 } // namespace content | 788 } // namespace content |
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