| /* |
| * Copyright (C) 2012 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "core/page/PageWidgetDelegate.h" |
| |
| #include "core/dom/AXObjectCache.h" |
| #include "core/events/WebInputEventConversion.h" |
| #include "core/frame/LocalFrame.h" |
| #include "core/frame/LocalFrameClient.h" |
| #include "core/frame/LocalFrameView.h" |
| #include "core/input/EventHandler.h" |
| #include "core/layout/LayoutView.h" |
| #include "core/loader/InteractiveDetector.h" |
| #include "core/page/AutoscrollController.h" |
| #include "core/page/Page.h" |
| #include "core/paint/TransformRecorder.h" |
| #include "core/paint/compositing/PaintLayerCompositor.h" |
| #include "platform/graphics/GraphicsContext.h" |
| #include "platform/graphics/paint/ClipRecorder.h" |
| #include "platform/graphics/paint/CullRect.h" |
| #include "platform/graphics/paint/DrawingRecorder.h" |
| #include "platform/graphics/paint/PaintRecordBuilder.h" |
| #include "platform/transforms/AffineTransform.h" |
| #include "platform/wtf/Time.h" |
| #include "public/platform/WebInputEvent.h" |
| |
| namespace blink { |
| |
| void PageWidgetDelegate::Animate(Page& page, |
| double monotonic_frame_begin_time) { |
| page.GetAutoscrollController().Animate(monotonic_frame_begin_time); |
| page.Animator().ServiceScriptedAnimations(monotonic_frame_begin_time); |
| } |
| |
| void PageWidgetDelegate::UpdateLifecycle( |
| Page& page, |
| LocalFrame& root, |
| WebWidget::LifecycleUpdate requested_update) { |
| if (requested_update == WebWidget::LifecycleUpdate::kPrePaint) { |
| page.Animator().UpdateLifecycleToPrePaintClean(root); |
| } else { |
| page.Animator().UpdateAllLifecyclePhases(root); |
| } |
| } |
| |
| static void PaintInternal(Page& page, |
| WebCanvas* canvas, |
| const WebRect& rect, |
| LocalFrame& root, |
| const GlobalPaintFlags global_paint_flags) { |
| if (rect.IsEmpty()) |
| return; |
| |
| PaintRecordBuilder builder; |
| { |
| GraphicsContext& paint_context = builder.Context(); |
| |
| // FIXME: device scale factor settings are layering violations and should |
| // not be used within Blink paint code. |
| float scale_factor = page.DeviceScaleFactorDeprecated(); |
| paint_context.SetDeviceScaleFactor(scale_factor); |
| |
| AffineTransform scale; |
| scale.Scale(scale_factor); |
| TransformRecorder scale_recorder(paint_context, builder, scale); |
| |
| IntRect dirty_rect(rect); |
| LocalFrameView* view = root.View(); |
| view->UpdateAllLifecyclePhasesExceptPaint(); |
| if (view) { |
| ClipRecorder clip_recorder(paint_context, builder, |
| DisplayItem::kPageWidgetDelegateClip, |
| dirty_rect); |
| view->PaintWithLifecycleUpdate(paint_context, global_paint_flags, |
| CullRect(dirty_rect)); |
| } else { |
| DrawingRecorder recorder( |
| paint_context, builder, |
| DisplayItem::kPageWidgetDelegateBackgroundFallback); |
| paint_context.FillRect(dirty_rect, Color::kWhite); |
| } |
| } |
| |
| builder.EndRecording(*canvas); |
| } |
| |
| void PageWidgetDelegate::Paint(Page& page, |
| WebCanvas* canvas, |
| const WebRect& rect, |
| LocalFrame& root) { |
| PaintInternal(page, canvas, rect, root, kGlobalPaintNormalPhase); |
| } |
| |
| void PageWidgetDelegate::PaintIgnoringCompositing(Page& page, |
| WebCanvas* canvas, |
| const WebRect& rect, |
| LocalFrame& root) { |
| PaintInternal(page, canvas, rect, root, kGlobalPaintFlattenCompositingLayers); |
| } |
| |
| WebInputEventResult PageWidgetDelegate::HandleInputEvent( |
| PageWidgetEventHandler& handler, |
| const WebCoalescedInputEvent& coalesced_event, |
| LocalFrame* root) { |
| const WebInputEvent& event = coalesced_event.Event(); |
| if (root) { |
| Document* document = root->GetDocument(); |
| DCHECK(document); |
| |
| InteractiveDetector* interactive_detector( |
| InteractiveDetector::From(*document)); |
| |
| // interactive_detector is null in the OOPIF case. |
| // TODO(crbug.com/808089): report across OOPIFs. |
| if (interactive_detector) |
| interactive_detector->HandleForFirstInputDelay(event); |
| } |
| |
| if (event.GetModifiers() & WebInputEvent::kIsTouchAccessibility && |
| WebInputEvent::IsMouseEventType(event.GetType())) { |
| WebMouseEvent mouse_event = TransformWebMouseEvent( |
| root->View(), static_cast<const WebMouseEvent&>(event)); |
| |
| IntPoint doc_point(root->View()->RootFrameToContents( |
| FlooredIntPoint(mouse_event.PositionInRootFrame()))); |
| HitTestResult result = root->GetEventHandler().HitTestResultAtPoint( |
| doc_point, HitTestRequest::kReadOnly | HitTestRequest::kActive); |
| result.SetToShadowHostIfInRestrictedShadowRoot(); |
| if (result.InnerNodeFrame()) { |
| Document* document = result.InnerNodeFrame()->GetDocument(); |
| if (document) { |
| AXObjectCache* cache = document->ExistingAXObjectCache(); |
| if (cache) { |
| cache->OnTouchAccessibilityHover( |
| result.RoundedPointInInnerNodeFrame()); |
| } |
| } |
| } |
| } |
| |
| switch (event.GetType()) { |
| // FIXME: WebKit seems to always return false on mouse events processing |
| // methods. For now we'll assume it has processed them (as we are only |
| // interested in whether keyboard events are processed). |
| // FIXME: Why do we return HandleSuppressed when there is no root or |
| // the root is detached? |
| case WebInputEvent::kMouseMove: |
| if (!root || !root->View()) |
| return WebInputEventResult::kHandledSuppressed; |
| handler.HandleMouseMove(*root, static_cast<const WebMouseEvent&>(event), |
| coalesced_event.GetCoalescedEventsPointers()); |
| return WebInputEventResult::kHandledSystem; |
| case WebInputEvent::kMouseLeave: |
| if (!root || !root->View()) |
| return WebInputEventResult::kHandledSuppressed; |
| handler.HandleMouseLeave(*root, static_cast<const WebMouseEvent&>(event)); |
| return WebInputEventResult::kHandledSystem; |
| case WebInputEvent::kMouseDown: |
| if (!root || !root->View()) |
| return WebInputEventResult::kHandledSuppressed; |
| handler.HandleMouseDown(*root, static_cast<const WebMouseEvent&>(event)); |
| return WebInputEventResult::kHandledSystem; |
| case WebInputEvent::kMouseUp: |
| if (!root || !root->View()) |
| return WebInputEventResult::kHandledSuppressed; |
| handler.HandleMouseUp(*root, static_cast<const WebMouseEvent&>(event)); |
| return WebInputEventResult::kHandledSystem; |
| case WebInputEvent::kMouseWheel: |
| if (!root || !root->View()) |
| return WebInputEventResult::kNotHandled; |
| return handler.HandleMouseWheel( |
| *root, static_cast<const WebMouseWheelEvent&>(event)); |
| |
| case WebInputEvent::kRawKeyDown: |
| case WebInputEvent::kKeyDown: |
| case WebInputEvent::kKeyUp: |
| return handler.HandleKeyEvent( |
| static_cast<const WebKeyboardEvent&>(event)); |
| |
| case WebInputEvent::kChar: |
| return handler.HandleCharEvent( |
| static_cast<const WebKeyboardEvent&>(event)); |
| case WebInputEvent::kGestureScrollBegin: |
| case WebInputEvent::kGestureScrollEnd: |
| case WebInputEvent::kGestureScrollUpdate: |
| case WebInputEvent::kGestureFlingStart: |
| case WebInputEvent::kGestureFlingCancel: |
| case WebInputEvent::kGestureTap: |
| case WebInputEvent::kGestureTapUnconfirmed: |
| case WebInputEvent::kGestureTapDown: |
| case WebInputEvent::kGestureShowPress: |
| case WebInputEvent::kGestureTapCancel: |
| case WebInputEvent::kGestureDoubleTap: |
| case WebInputEvent::kGestureTwoFingerTap: |
| case WebInputEvent::kGestureLongPress: |
| case WebInputEvent::kGestureLongTap: |
| return handler.HandleGestureEvent( |
| static_cast<const WebGestureEvent&>(event)); |
| |
| case WebInputEvent::kPointerDown: |
| case WebInputEvent::kPointerUp: |
| case WebInputEvent::kPointerMove: |
| case WebInputEvent::kPointerCancel: |
| case WebInputEvent::kPointerCausedUaAction: |
| if (!root || !root->View()) |
| return WebInputEventResult::kNotHandled; |
| return handler.HandlePointerEvent( |
| *root, static_cast<const WebPointerEvent&>(event), |
| coalesced_event.GetCoalescedEventsPointers()); |
| |
| case WebInputEvent::kTouchStart: |
| case WebInputEvent::kTouchMove: |
| case WebInputEvent::kTouchEnd: |
| case WebInputEvent::kTouchCancel: |
| case WebInputEvent::kTouchScrollStarted: |
| NOTREACHED(); |
| |
| case WebInputEvent::kGesturePinchBegin: |
| case WebInputEvent::kGesturePinchEnd: |
| case WebInputEvent::kGesturePinchUpdate: |
| // Touchscreen pinch events are currently not handled in main thread. |
| // Once they are, these should be passed to |handleGestureEvent| similar |
| // to gesture scroll events. |
| return WebInputEventResult::kNotHandled; |
| default: |
| return WebInputEventResult::kNotHandled; |
| } |
| } |
| |
| // ---------------------------------------------------------------- |
| // Default handlers for PageWidgetEventHandler |
| |
| void PageWidgetEventHandler::HandleMouseMove( |
| LocalFrame& main_frame, |
| const WebMouseEvent& event, |
| const std::vector<const WebInputEvent*>& coalesced_events) { |
| WebMouseEvent transformed_event = |
| TransformWebMouseEvent(main_frame.View(), event); |
| main_frame.GetEventHandler().HandleMouseMoveEvent( |
| transformed_event, |
| TransformWebMouseEventVector(main_frame.View(), coalesced_events)); |
| } |
| |
| void PageWidgetEventHandler::HandleMouseLeave(LocalFrame& main_frame, |
| const WebMouseEvent& event) { |
| WebMouseEvent transformed_event = |
| TransformWebMouseEvent(main_frame.View(), event); |
| main_frame.GetEventHandler().HandleMouseLeaveEvent(transformed_event); |
| } |
| |
| void PageWidgetEventHandler::HandleMouseDown(LocalFrame& main_frame, |
| const WebMouseEvent& event) { |
| WebMouseEvent transformed_event = |
| TransformWebMouseEvent(main_frame.View(), event); |
| main_frame.GetEventHandler().HandleMousePressEvent(transformed_event); |
| } |
| |
| void PageWidgetEventHandler::HandleMouseUp(LocalFrame& main_frame, |
| const WebMouseEvent& event) { |
| WebMouseEvent transformed_event = |
| TransformWebMouseEvent(main_frame.View(), event); |
| main_frame.GetEventHandler().HandleMouseReleaseEvent(transformed_event); |
| } |
| |
| WebInputEventResult PageWidgetEventHandler::HandleMouseWheel( |
| LocalFrame& frame, |
| const WebMouseWheelEvent& event) { |
| WebMouseWheelEvent transformed_event = |
| TransformWebMouseWheelEvent(frame.View(), event); |
| return frame.GetEventHandler().HandleWheelEvent(transformed_event); |
| } |
| |
| WebInputEventResult PageWidgetEventHandler::HandlePointerEvent( |
| LocalFrame& main_frame, |
| const WebPointerEvent& event, |
| const std::vector<const WebInputEvent*>& coalesced_events) { |
| WebPointerEvent transformed_event = |
| TransformWebPointerEvent(main_frame.View(), event); |
| return main_frame.GetEventHandler().HandlePointerEvent( |
| transformed_event, |
| TransformWebPointerEventVector(main_frame.View(), coalesced_events)); |
| } |
| |
| WebInputEventResult PageWidgetEventHandler::HandleInputEventIncludingTouch( |
| const WebCoalescedInputEvent& coalesced_event) { |
| const WebInputEvent& input_event = coalesced_event.Event(); |
| if (WebInputEvent::IsTouchEventType(input_event.GetType())) { |
| if (input_event.GetType() == WebInputEvent::kTouchScrollStarted) { |
| WebPointerEvent pointer_event = |
| WebPointerEvent::CreatePointerCausesUaActionEvent( |
| WebPointerProperties::PointerType::kUnknown, |
| input_event.TimeStampSeconds()); |
| return HandleInputEventInternal(WebCoalescedInputEvent(pointer_event)); |
| } |
| const WebTouchEvent touch_event = |
| static_cast<const WebTouchEvent&>(input_event); |
| for (unsigned i = 0; i < touch_event.touches_length; ++i) { |
| const WebTouchPoint& touch_point = touch_event.touches[i]; |
| if (touch_point.state != blink::WebTouchPoint::kStateStationary) { |
| const WebPointerEvent& pointer_event = |
| WebPointerEvent(touch_event, touch_point); |
| const WebCoalescedInputEvent& coalesced_pointer_event = |
| GetCoalescedWebPointerEventForTouch( |
| pointer_event, coalesced_event.GetCoalescedEventsPointers()); |
| HandleInputEventInternal(coalesced_pointer_event); |
| } |
| } |
| return DispatchBufferedTouchEvents(); |
| } |
| return HandleInputEventInternal(coalesced_event); |
| } |
| |
| } // namespace blink |
