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/*
* 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 "third_party/blink/renderer/core/page/page_widget_delegate.h"
#include "third_party/blink/public/platform/web_input_event.h"
#include "third_party/blink/renderer/core/accessibility/ax_object_cache.h"
#include "third_party/blink/renderer/core/events/web_input_event_conversion.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/frame/local_frame_client.h"
#include "third_party/blink/renderer/core/frame/local_frame_view.h"
#include "third_party/blink/renderer/core/input/event_handler.h"
#include "third_party/blink/renderer/core/layout/jank_tracker.h"
#include "third_party/blink/renderer/core/layout/layout_view.h"
#include "third_party/blink/renderer/core/loader/interactive_detector.h"
#include "third_party/blink/renderer/core/origin_trials/origin_trials.h"
#include "third_party/blink/renderer/core/page/autoscroll_controller.h"
#include "third_party/blink/renderer/core/page/page.h"
#include "third_party/blink/renderer/core/paint/compositing/paint_layer_compositor.h"
#include "third_party/blink/renderer/platform/graphics/graphics_context.h"
#include "third_party/blink/renderer/platform/graphics/paint/cull_rect.h"
#include "third_party/blink/renderer/platform/graphics/paint/drawing_recorder.h"
#include "third_party/blink/renderer/platform/graphics/paint/paint_record_builder.h"
#include "third_party/blink/renderer/platform/transforms/affine_transform.h"
#include "third_party/blink/renderer/platform/wtf/time.h"
namespace blink {
void PageWidgetDelegate::Animate(Page& page,
base::TimeTicks monotonic_frame_begin_time) {
page.GetAutoscrollController().Animate();
page.Animator().ServiceScriptedAnimations(monotonic_frame_begin_time);
}
void PageWidgetDelegate::UpdateLifecycle(
Page& page,
LocalFrame& root,
WebWidget::LifecycleUpdate requested_update,
WebWidget::LifecycleUpdateReason reason) {
if (requested_update == WebWidget::LifecycleUpdate::kLayout) {
page.Animator().UpdateLifecycleToLayoutClean(root);
} else if (requested_update == WebWidget::LifecycleUpdate::kPrePaint) {
page.Animator().UpdateAllLifecyclePhasesExceptPaint(root);
} else {
page.Animator().UpdateAllLifecyclePhases(
root, static_cast<DocumentLifecycle::LifecycleUpdateReason>(reason));
}
}
void PageWidgetDelegate::PaintContent(cc::PaintCanvas* canvas,
const WebRect& rect,
LocalFrame& root) {
if (rect.IsEmpty())
return;
float scale_factor = root.DevicePixelRatio();
canvas->save();
canvas->scale(scale_factor, scale_factor);
IntRect dirty_rect(rect);
LocalFrameView* view = root.View();
if (view) {
DCHECK(view->GetLayoutView()->GetDocument().Lifecycle().GetState() ==
DocumentLifecycle::kPaintClean);
canvas->clipRect(dirty_rect);
PaintRecordBuilder builder;
builder.Context().SetDeviceScaleFactor(scale_factor);
view->PaintOutsideOfLifecycle(builder.Context(), kGlobalPaintNormalPhase,
CullRect(dirty_rect));
builder.EndRecording(
*canvas,
view->GetLayoutView()->FirstFragment().LocalBorderBoxProperties());
} else {
PaintFlags flags;
flags.setColor(SK_ColorWHITE);
canvas->drawRect(dirty_rect, flags);
}
canvas->restore();
}
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->HandleForInputDelay(event);
if (origin_trials::JankTrackingEnabled(document)) {
if (LocalFrameView* view = document->View())
view->GetJankTracker().NotifyInput(event);
}
}
if (event.GetModifiers() & WebInputEvent::kIsTouchAccessibility &&
WebInputEvent::IsMouseEventType(event.GetType())) {
WebMouseEvent mouse_event = TransformWebMouseEvent(
root->View(), static_cast<const WebMouseEvent&>(event));
HitTestLocation location(root->View()->ConvertFromRootFrame(
FlooredIntPoint(mouse_event.PositionInRootFrame())));
HitTestResult result = root->GetEventHandler().HitTestResultAtLocation(
location, 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(),
coalesced_event.GetPredictedEventsPointers());
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::kPointerRawMove:
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(),
coalesced_event.GetPredictedEventsPointers());
case WebInputEvent::kTouchStart:
case WebInputEvent::kTouchMove:
case WebInputEvent::kTouchEnd:
case WebInputEvent::kTouchCancel:
case WebInputEvent::kTouchScrollStarted:
NOTREACHED();
return WebInputEventResult::kNotHandled;
case WebInputEvent::kGesturePinchBegin:
// Gesture pinch events are handled entirely on the compositor.
DLOG(INFO) << "Gesture pinch ignored by main thread.";
FALLTHROUGH;
case WebInputEvent::kGesturePinchEnd:
case WebInputEvent::kGesturePinchUpdate:
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,
const std::vector<const WebInputEvent*>& predicted_events) {
WebMouseEvent transformed_event =
TransformWebMouseEvent(main_frame.View(), event);
main_frame.GetEventHandler().HandleMouseMoveEvent(
transformed_event,
TransformWebMouseEventVector(main_frame.View(), coalesced_events),
TransformWebMouseEventVector(main_frame.View(), predicted_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,
const std::vector<const WebInputEvent*>& predicted_events) {
WebPointerEvent transformed_event =
TransformWebPointerEvent(main_frame.View(), event);
return main_frame.GetEventHandler().HandlePointerEvent(
transformed_event,
TransformWebPointerEventVector(main_frame.View(), coalesced_events),
TransformWebPointerEventVector(main_frame.View(), predicted_events));
}
} // namespace blink