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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/core/input/gesture_manager.h"
#include "third_party/blink/public/common/input/web_input_event.h"
#include "third_party/blink/public/common/input/web_pointer_event.h"
#include "third_party/blink/public/mojom/frame/user_activation_notification_type.mojom-blink.h"
#include "third_party/blink/public/public_buildflags.h"
#include "third_party/blink/renderer/core/annotation/annotation_agent_impl.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/editing/selection_controller.h"
#include "third_party/blink/renderer/core/event_type_names.h"
#include "third_party/blink/renderer/core/events/gesture_event.h"
#include "third_party/blink/renderer/core/events/pointer_event_factory.h"
#include "third_party/blink/renderer/core/frame/local_dom_window.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/frame/local_frame_view.h"
#include "third_party/blink/renderer/core/frame/settings.h"
#include "third_party/blink/renderer/core/frame/visual_viewport.h"
#include "third_party/blink/renderer/core/input/context_menu_allowed_scope.h"
#include "third_party/blink/renderer/core/input/event_handler.h"
#include "third_party/blink/renderer/core/input/event_handling_util.h"
#include "third_party/blink/renderer/core/input/input_device_capabilities.h"
#include "third_party/blink/renderer/core/page/chrome_client.h"
#include "third_party/blink/renderer/core/page/page.h"
#include "third_party/blink/renderer/core/paint/paint_layer_scrollable_area.h"
#include "ui/gfx/geometry/point_conversions.h"
#if BUILDFLAG(ENABLE_UNHANDLED_TAP)
#include "third_party/blink/public/mojom/unhandled_tap_notifier/unhandled_tap_notifier.mojom-blink.h"
#include "third_party/blink/public/platform/browser_interface_broker_proxy.h"
#include "third_party/blink/public/web/web_node.h"
#include "third_party/blink/renderer/core/editing/frame_selection.h"
#include "third_party/blink/renderer/core/editing/selection_template.h"
#include "third_party/blink/renderer/core/editing/visible_selection.h"
#include "third_party/blink/renderer/core/frame/local_frame_client.h"
#include "third_party/blink/renderer/core/style/computed_style.h"
#endif // BUILDFLAG(ENABLE_UNHANDLED_TAP)
namespace blink {
namespace {
// The amount of drag (in pixels) that is considered to be within a slop region.
// This allows firing touch dragend contextmenu events for shaky fingers.
const int kTouchDragSlop = 8;
bool TouchDragAndContextMenuEnabled(const LocalFrame* frame) {
return RuntimeEnabledFeatures::TouchDragAndContextMenuEnabled() &&
frame->GetSettings() && !frame->GetSettings()->GetModalContextMenu();
}
} // namespace
GestureManager::GestureManager(LocalFrame& frame,
ScrollManager& scroll_manager,
MouseEventManager& mouse_event_manager,
PointerEventManager& pointer_event_manager,
SelectionController& selection_controller)
: frame_(frame),
scroll_manager_(scroll_manager),
mouse_event_manager_(mouse_event_manager),
pointer_event_manager_(pointer_event_manager),
selection_controller_(selection_controller) {
Clear();
}
void GestureManager::Clear() {
suppress_mouse_events_from_gestures_ = false;
suppress_selection_on_repeated_tap_down_ = false;
ResetLongTapContextMenuStates();
}
void GestureManager::ResetLongTapContextMenuStates() {
gesture_context_menu_deferred_ = false;
long_press_position_in_root_frame_ = gfx::PointF();
drag_in_progress_ = false;
}
void GestureManager::Trace(Visitor* visitor) const {
visitor->Trace(frame_);
visitor->Trace(scroll_manager_);
visitor->Trace(mouse_event_manager_);
visitor->Trace(pointer_event_manager_);
visitor->Trace(selection_controller_);
}
HitTestRequest::HitTestRequestType GestureManager::GetHitTypeForGestureType(
WebInputEvent::Type type) {
HitTestRequest::HitTestRequestType hit_type = HitTestRequest::kTouchEvent;
switch (type) {
case WebInputEvent::Type::kGestureShowPress:
case WebInputEvent::Type::kGestureTapUnconfirmed:
return hit_type | HitTestRequest::kActive;
case WebInputEvent::Type::kGestureTapCancel:
// A TapDownCancel received when no element is active shouldn't really be
// changing hover state.
if (!frame_->GetDocument()->GetActiveElement())
hit_type |= HitTestRequest::kReadOnly;
return hit_type | HitTestRequest::kRelease;
case WebInputEvent::Type::kGestureTap:
return hit_type | HitTestRequest::kRelease;
case WebInputEvent::Type::kGestureTapDown:
case WebInputEvent::Type::kGestureShortPress:
case WebInputEvent::Type::kGestureLongPress:
case WebInputEvent::Type::kGestureLongTap:
case WebInputEvent::Type::kGestureTwoFingerTap:
// FIXME: Shouldn't LongTap and TwoFingerTap clear the Active state?
return hit_type | HitTestRequest::kActive | HitTestRequest::kReadOnly;
default:
NOTREACHED();
}
}
WebInputEventResult GestureManager::HandleGestureEventInFrame(
const GestureEventWithHitTestResults& targeted_event) {
const HitTestResult& hit_test_result = targeted_event.GetHitTestResult();
const WebGestureEvent& gesture_event = targeted_event.Event();
DCHECK(!gesture_event.IsScrollEvent());
if (Scrollbar* scrollbar = hit_test_result.GetScrollbar()) {
if (scrollbar->HandleGestureTapOrPress(gesture_event)) {
return WebInputEventResult::kHandledSuppressed;
}
}
if (Node* event_target = hit_test_result.InnerNode()) {
GestureEvent* gesture_dom_event = GestureEvent::Create(
event_target->GetDocument().domWindow(), gesture_event);
if (gesture_dom_event) {
DispatchEventResult gesture_dom_event_result =
event_target->DispatchEvent(*gesture_dom_event);
if (gesture_dom_event_result != DispatchEventResult::kNotCanceled) {
DCHECK(gesture_dom_event_result !=
DispatchEventResult::kCanceledByEventHandler);
return event_handling_util::ToWebInputEventResult(
gesture_dom_event_result);
}
}
}
switch (gesture_event.GetType()) {
case WebInputEvent::Type::kGestureTapDown:
return HandleGestureTapDown(targeted_event);
case WebInputEvent::Type::kGestureTap:
return HandleGestureTap(targeted_event);
case WebInputEvent::Type::kGestureShowPress:
return HandleGestureShowPress();
case WebInputEvent::Type::kGestureShortPress:
return HandleGestureShortPress(targeted_event);
case WebInputEvent::Type::kGestureLongPress:
return HandleGestureLongPress(targeted_event);
case WebInputEvent::Type::kGestureLongTap:
return HandleGestureLongTap(targeted_event);
case WebInputEvent::Type::kGestureTwoFingerTap:
return HandleGestureTwoFingerTap(targeted_event);
case WebInputEvent::Type::kGestureTapCancel:
case WebInputEvent::Type::kGestureTapUnconfirmed:
break;
default:
NOTREACHED();
}
return WebInputEventResult::kNotHandled;
}
bool GestureManager::GestureContextMenuDeferred() const {
return gesture_context_menu_deferred_;
}
WebInputEventResult GestureManager::HandleGestureTapDown(
const GestureEventWithHitTestResults& targeted_event) {
const WebGestureEvent& gesture_event = targeted_event.Event();
suppress_mouse_events_from_gestures_ =
pointer_event_manager_->PrimaryPointerdownCanceled(
gesture_event.unique_touch_event_id);
if (!RuntimeEnabledFeatures::TouchTextEditingRedesignEnabled() ||
suppress_mouse_events_from_gestures_ ||
suppress_selection_on_repeated_tap_down_ ||
gesture_event.TapDownCount() <= 1) {
return WebInputEventResult::kNotHandled;
}
const WebMouseEvent fake_mouse_down(
WebInputEvent::Type::kMouseDown, gesture_event,
WebPointerProperties::Button::kLeft, gesture_event.TapDownCount(),
static_cast<WebInputEvent::Modifiers>(
gesture_event.GetModifiers() |
WebInputEvent::Modifiers::kLeftButtonDown |
WebInputEvent::Modifiers::kIsCompatibilityEventForTouch),
gesture_event.TimeStamp());
const HitTestResult& current_hit_test = targeted_event.GetHitTestResult();
const HitTestLocation& current_hit_test_location =
targeted_event.GetHitTestLocation();
selection_controller_->HandleMousePressEvent(MouseEventWithHitTestResults(
fake_mouse_down, current_hit_test_location, current_hit_test));
return WebInputEventResult::kNotHandled;
}
WebInputEventResult GestureManager::HandleGestureTap(
const GestureEventWithHitTestResults& targeted_event) {
LocalFrameView* frame_view(frame_->View());
const WebGestureEvent& gesture_event = targeted_event.Event();
HitTestRequest::HitTestRequestType hit_type =
GetHitTypeForGestureType(gesture_event.GetType());
uint64_t pre_dispatch_dom_tree_version =
frame_->GetDocument()->DomTreeVersion();
uint64_t pre_dispatch_style_version = frame_->GetDocument()->StyleVersion();
HitTestResult current_hit_test = targeted_event.GetHitTestResult();
const HitTestLocation& current_hit_test_location =
targeted_event.GetHitTestLocation();
// We use the adjusted position so the application isn't surprised to see a
// event with co-ordinates outside the target's bounds.
gfx::Point adjusted_point = frame_view->ConvertFromRootFrame(
gfx::ToFlooredPoint(gesture_event.PositionInRootFrame()));
const unsigned modifiers = gesture_event.GetModifiers();
if (!suppress_mouse_events_from_gestures_) {
WebMouseEvent fake_mouse_move(
WebInputEvent::Type::kMouseMove, gesture_event,
WebPointerProperties::Button::kNoButton,
/* clickCount */ 0,
static_cast<WebInputEvent::Modifiers>(
modifiers |
WebInputEvent::Modifiers::kIsCompatibilityEventForTouch),
gesture_event.TimeStamp());
// This updates hover state to the location of the tap, but does NOT update
// MouseEventManager::last_known_mouse_position_*. That's deliberate, since
// we don't want the page to continue to act as if this point is hovered
// (if the user scrolls for example).
//
// TODO(crbug.com/368256331): When we've applied a tap-based hover state, we
// should actually suppress RecomputeMouseHoverState until the user moves
// the mouse or navigates away.
mouse_event_manager_->SetElementUnderMouseAndDispatchMouseEvent(
current_hit_test.InnerElement(), event_type_names::kMousemove,
fake_mouse_move);
}
// Do a new hit-test in case the mousemove event changed the DOM.
// Note that if the original hit test wasn't over an element (eg. was over a
// scrollbar) we don't want to re-hit-test because it may be in the wrong
// frame (and there's no way the page could have seen the event anyway). Also
// note that the position of the frame may have changed, so we need to
// recompute the content co-ordinates (updating layout/style as
// hitTestResultAtPoint normally would).
if (current_hit_test.InnerNode()) {
LocalFrame& main_frame = frame_->LocalFrameRoot();
if (!main_frame.View() ||
!main_frame.View()->UpdateAllLifecyclePhasesExceptPaint(
DocumentUpdateReason::kHitTest))
return WebInputEventResult::kNotHandled;
adjusted_point = frame_view->ConvertFromRootFrame(
gfx::ToFlooredPoint(gesture_event.PositionInRootFrame()));
current_hit_test = event_handling_util::HitTestResultInFrame(
frame_, HitTestLocation(adjusted_point), hit_type);
}
// Capture data for showUnhandledTapUIIfNeeded.
gfx::Point tapped_position =
gfx::ToFlooredPoint(gesture_event.PositionInRootFrame());
Node* tapped_node = current_hit_test.InnerNode();
Element* tapped_element = current_hit_test.InnerElement();
LocalFrame::NotifyUserActivation(
tapped_node ? tapped_node->GetDocument().GetFrame() : nullptr,
mojom::blink::UserActivationNotificationType::kInteraction);
mouse_event_manager_->SetMouseDownElement(tapped_element);
WebMouseEvent fake_mouse_down(
WebInputEvent::Type::kMouseDown, gesture_event,
WebPointerProperties::Button::kLeft, gesture_event.TapCount(),
static_cast<WebInputEvent::Modifiers>(
modifiers | WebInputEvent::Modifiers::kLeftButtonDown |
WebInputEvent::Modifiers::kIsCompatibilityEventForTouch),
gesture_event.TimeStamp());
// TODO(mustaq): We suppress MEs plus all it's side effects. What would that
// mean for for TEs? What's the right balance here? crbug.com/617255
WebInputEventResult mouse_down_event_result =
WebInputEventResult::kHandledSuppressed;
suppress_selection_on_repeated_tap_down_ = true;
if (!suppress_mouse_events_from_gestures_) {
mouse_event_manager_->SetClickCount(gesture_event.TapCount());
mouse_down_event_result =
mouse_event_manager_->SetElementUnderMouseAndDispatchMouseEvent(
current_hit_test.InnerElement(), event_type_names::kMousedown,
fake_mouse_down);
selection_controller_->InitializeSelectionState();
if (mouse_down_event_result == WebInputEventResult::kNotHandled) {
mouse_down_event_result = mouse_event_manager_->HandleMouseFocus(
current_hit_test,
frame_->DomWindow()->GetInputDeviceCapabilities()->FiresTouchEvents(
true));
}
if (mouse_down_event_result == WebInputEventResult::kNotHandled) {
suppress_selection_on_repeated_tap_down_ = false;
mouse_down_event_result = mouse_event_manager_->HandleMousePressEvent(
MouseEventWithHitTestResults(
fake_mouse_down, current_hit_test_location, current_hit_test));
}
}
if (current_hit_test.InnerNode()) {
DCHECK(gesture_event.GetType() == WebInputEvent::Type::kGestureTap);
HitTestResult result = current_hit_test;
result.SetToShadowHostIfInUAShadowRoot();
frame_->GetChromeClient().OnMouseDown(*result.InnerNode());
}
if (current_hit_test.InnerNode()) {
LocalFrame& main_frame = frame_->LocalFrameRoot();
if (main_frame.View()) {
main_frame.View()->UpdateAllLifecyclePhasesExceptPaint(
DocumentUpdateReason::kHitTest);
}
adjusted_point = frame_view->ConvertFromRootFrame(tapped_position);
current_hit_test = event_handling_util::HitTestResultInFrame(
frame_, HitTestLocation(adjusted_point), hit_type);
}
WebMouseEvent fake_mouse_up(
WebInputEvent::Type::kMouseUp, gesture_event,
WebPointerProperties::Button::kLeft, gesture_event.TapCount(),
static_cast<WebInputEvent::Modifiers>(
modifiers | WebInputEvent::Modifiers::kIsCompatibilityEventForTouch),
gesture_event.TimeStamp());
WebInputEventResult mouse_up_event_result =
suppress_mouse_events_from_gestures_
? WebInputEventResult::kHandledSuppressed
: mouse_event_manager_->SetElementUnderMouseAndDispatchMouseEvent(
current_hit_test.InnerElement(), event_type_names::kMouseup,
fake_mouse_up);
WebInputEventResult click_event_result = WebInputEventResult::kNotHandled;
if (tapped_element) {
if (current_hit_test.InnerNode()) {
Node* click_target_node = current_hit_test.InnerNode()->CommonAncestor(
*tapped_element, event_handling_util::ParentForClickEvent);
auto* click_target_element = DynamicTo<Element>(click_target_node);
fake_mouse_up.id = GetPointerIdFromWebGestureEvent(gesture_event);
fake_mouse_up.pointer_type = gesture_event.primary_pointer_type;
click_event_result =
mouse_event_manager_->SetElementUnderMouseAndDispatchMouseEvent(
click_target_element, event_type_names::kClick, fake_mouse_up);
// Dispatching a JS event could have detached the frame.
if (frame_->View())
frame_->View()->RegisterTapEvent(tapped_element);
}
mouse_event_manager_->SetMouseDownElement(nullptr);
}
if (mouse_up_event_result == WebInputEventResult::kNotHandled) {
mouse_up_event_result = mouse_event_manager_->HandleMouseReleaseEvent(
MouseEventWithHitTestResults(fake_mouse_up, current_hit_test_location,
current_hit_test));
}
mouse_event_manager_->ClearDragHeuristicState();
WebInputEventResult event_result = event_handling_util::MergeEventResult(
event_handling_util::MergeEventResult(mouse_down_event_result,
mouse_up_event_result),
click_event_result);
if (RuntimeEnabledFeatures::TextFragmentTapOpensContextMenuEnabled() &&
current_hit_test.InnerNodeFrame()) {
current_hit_test.InnerNodeFrame()
->View()
->UpdateAllLifecyclePhasesExceptPaint(DocumentUpdateReason::kHitTest);
current_hit_test = event_handling_util::HitTestResultInFrame(
frame_, HitTestLocation(adjusted_point), hit_type);
if (AnnotationAgentImpl::IsOverAnnotation(current_hit_test) ==
mojom::blink::AnnotationType::kSharedHighlight &&
event_result == WebInputEventResult::kNotHandled) {
return SendContextMenuEventForGesture(targeted_event);
}
}
// Default case when tap that is not handled.
if (event_result == WebInputEventResult::kNotHandled && tapped_node &&
frame_->GetPage()) {
bool dom_tree_changed = pre_dispatch_dom_tree_version !=
frame_->GetDocument()->DomTreeVersion();
bool style_changed =
pre_dispatch_style_version != frame_->GetDocument()->StyleVersion();
gfx::Point tapped_position_in_viewport =
frame_->GetPage()->GetVisualViewport().RootFrameToViewport(
tapped_position);
ShowUnhandledTapUIIfNeeded(dom_tree_changed, style_changed, tapped_node,
tapped_position_in_viewport);
}
return event_result;
}
WebInputEventResult GestureManager::HandleGestureShortPress(
const GestureEventWithHitTestResults& targeted_event) {
drag_in_progress_ = false;
// TODO(crbug.com/1299010): When TouchDragAndContextMenu is enabled, we want
// to start drag here at short-press and open context-menu later at
// long-press. However, on Android an ACTION_CANCEL event is fired on
// drag-start, and occcasionally that happens before long-press gesture
// timeout which causes GestureRecognizer to suppress long-press detection.
if (TouchDragAndContextMenuEnabled(frame_) &&
RuntimeEnabledFeatures::TouchDragOnShortPressEnabled()) {
drag_in_progress_ = mouse_event_manager_->HandleDragDropIfPossible(
targeted_event,
GetPointerIdFromWebGestureEvent(targeted_event.Event()));
}
return drag_in_progress_ ? WebInputEventResult::kHandledSystem
: WebInputEventResult::kNotHandled;
}
WebInputEventResult GestureManager::HandleGestureLongPress(
const GestureEventWithHitTestResults& targeted_event) {
const WebGestureEvent& gesture_event = targeted_event.Event();
// FIXME: Ideally we should try to remove the extra mouse-specific hit-tests
// here (re-using the supplied HitTestResult), but that will require some
// overhaul of the touch drag-and-drop code and LongPress is such a special
// scenario that it's unlikely to matter much in practice.
long_press_position_in_root_frame_ = gesture_event.PositionInRootFrame();
HitTestLocation location(frame_->View()->ConvertFromRootFrame(
gfx::ToFlooredPoint(long_press_position_in_root_frame_)));
HitTestResult hit_test_result =
frame_->GetEventHandler().HitTestResultAtLocation(location);
gesture_context_menu_deferred_ = false;
if (TouchDragAndContextMenuEnabled(frame_)) {
if (!RuntimeEnabledFeatures::TouchDragOnShortPressEnabled()) {
drag_in_progress_ = mouse_event_manager_->HandleDragDropIfPossible(
targeted_event,
GetPointerIdFromWebGestureEvent(targeted_event.Event()));
}
} else if (frame_->GetSettings() &&
frame_->GetSettings()->GetTouchDragDropEnabled() &&
frame_->View()) {
// Dragging is suppressed on links and images in favor of opening a context
// menu on long press. In Windows, a drag is started and the context menu
// is opened if the drop happens in the same spot.
const bool should_open_context_menu_now =
!frame_->GetSettings()->GetTouchDragEndContextMenu() &&
(hit_test_result.URLElement() ||
!hit_test_result.AbsoluteImageURL().IsNull() ||
!hit_test_result.AbsoluteMediaURL().IsNull());
if (!should_open_context_menu_now &&
mouse_event_manager_->HandleDragDropIfPossible(
targeted_event,
GetPointerIdFromWebGestureEvent(targeted_event.Event()))) {
gesture_context_menu_deferred_ = true;
return WebInputEventResult::kHandledSystem;
}
}
Node* inner_node = hit_test_result.InnerNode();
if (!drag_in_progress_ && inner_node && inner_node->GetLayoutObject() &&
selection_controller_->HandleGestureLongPress(hit_test_result)) {
mouse_event_manager_->FocusDocumentView();
}
if (frame_->GetSettings() &&
frame_->GetSettings()->GetShowContextMenuOnMouseUp()) {
// TODO(https://crbug.com/1290905): Prevent a contextmenu after a
// finger-drag when TouchDragAndContextMenu is enabled.
gesture_context_menu_deferred_ = true;
return WebInputEventResult::kNotHandled;
}
LocalFrame::NotifyUserActivation(
inner_node ? inner_node->GetDocument().GetFrame() : nullptr,
mojom::blink::UserActivationNotificationType::kInteraction);
return SendContextMenuEventForGesture(targeted_event);
}
WebInputEventResult GestureManager::HandleGestureLongTap(
const GestureEventWithHitTestResults& targeted_event) {
if (gesture_context_menu_deferred_) {
gesture_context_menu_deferred_ = false;
return SendContextMenuEventForGesture(targeted_event);
}
return WebInputEventResult::kNotHandled;
}
WebInputEventResult GestureManager::HandleGestureTwoFingerTap(
const GestureEventWithHitTestResults& targeted_event) {
Node* inner_node = targeted_event.GetHitTestResult().InnerNode();
if (inner_node && inner_node->GetLayoutObject())
selection_controller_->HandleGestureTwoFingerTap(targeted_event);
return SendContextMenuEventForGesture(targeted_event);
}
void GestureManager::SendContextMenuEventTouchDragEnd(
const WebMouseEvent& mouse_event) {
if (!gesture_context_menu_deferred_ || suppress_mouse_events_from_gestures_) {
return;
}
const gfx::PointF& positon_in_root_frame = mouse_event.PositionInWidget();
// Don't send contextmenu event if tap position is not within a slop region.
//
// TODO(mustaq): We should be reusing gesture touch-slop region here but it
// seems non-trivial because this code path is called at drag-end, and the
// drag controller does not sync well with gesture recognizer. See the
// blocked-on bugs in https://crbug.com/1096189.
if ((positon_in_root_frame - long_press_position_in_root_frame_).Length() >
kTouchDragSlop)
return;
ContextMenuAllowedScope scope;
frame_->GetEventHandler().SendContextMenuEvent(mouse_event);
ResetLongTapContextMenuStates();
}
WebInputEventResult GestureManager::SendContextMenuEventForGesture(
const GestureEventWithHitTestResults& targeted_event) {
const WebGestureEvent& gesture_event = targeted_event.Event();
unsigned modifiers = gesture_event.GetModifiers();
if (!suppress_mouse_events_from_gestures_) {
// Send MouseMove event prior to handling (https://crbug.com/485290).
WebMouseEvent fake_mouse_move(
WebInputEvent::Type::kMouseMove, gesture_event,
WebPointerProperties::Button::kNoButton,
/* clickCount */ 0,
static_cast<WebInputEvent::Modifiers>(
modifiers | WebInputEvent::kIsCompatibilityEventForTouch),
gesture_event.TimeStamp());
mouse_event_manager_->SetElementUnderMouseAndDispatchMouseEvent(
targeted_event.GetHitTestResult().InnerElement(),
event_type_names::kMousemove, fake_mouse_move);
}
WebInputEvent::Type event_type = WebInputEvent::Type::kMouseDown;
if (frame_->GetSettings() &&
frame_->GetSettings()->GetShowContextMenuOnMouseUp())
event_type = WebInputEvent::Type::kMouseUp;
WebMouseEvent mouse_event(
event_type, gesture_event, WebPointerProperties::Button::kNoButton,
/* clickCount */ 0,
static_cast<WebInputEvent::Modifiers>(
modifiers | WebInputEvent::kIsCompatibilityEventForTouch),
gesture_event.TimeStamp());
if (!suppress_mouse_events_from_gestures_ && frame_->View()) {
HitTestRequest request(HitTestRequest::kActive);
PhysicalOffset document_point(frame_->View()->ConvertFromRootFrame(
gfx::ToFlooredPoint(targeted_event.Event().PositionInRootFrame())));
MouseEventWithHitTestResults mev =
frame_->GetDocument()->PerformMouseEventHitTest(request, document_point,
mouse_event);
mouse_event_manager_->HandleMouseFocus(mev.GetHitTestResult(),
frame_->GetDocument()
->domWindow()
->GetInputDeviceCapabilities()
->FiresTouchEvents(true));
}
mouse_event.id = GetPointerIdFromWebGestureEvent(gesture_event);
mouse_event.pointer_type = gesture_event.primary_pointer_type;
return frame_->GetEventHandler().SendContextMenuEvent(mouse_event);
}
WebInputEventResult GestureManager::HandleGestureShowPress() {
LocalFrameView* view = frame_->View();
if (!view)
return WebInputEventResult::kNotHandled;
for (auto& scrollable_area : view->ScrollableAreas().Values()) {
if (scrollable_area->ScrollsOverflow())
scrollable_area->CancelScrollAnimation();
}
return WebInputEventResult::kNotHandled;
}
void GestureManager::ShowUnhandledTapUIIfNeeded(
bool dom_tree_changed,
bool style_changed,
Node* tapped_node,
const gfx::Point& tapped_position_in_viewport) {
#if BUILDFLAG(ENABLE_UNHANDLED_TAP)
WebNode web_node(tapped_node);
bool should_trigger = !dom_tree_changed && !style_changed &&
tapped_node->IsTextNode() &&
!web_node.IsContentEditable() &&
!web_node.IsInsideFocusableElementOrARIAWidget();
// Renderer-side trigger-filtering to minimize messaging.
// The Browser may do additional trigger-filtering.
if (should_trigger) {
// Start setting up the Mojo interface connection.
mojo::Remote<mojom::blink::UnhandledTapNotifier> provider;
frame_->GetBrowserInterfaceBroker().GetInterface(
provider.BindNewPipeAndPassReceiver());
// Notify the Browser.
auto tapped_info =
mojom::blink::UnhandledTapInfo::New(tapped_position_in_viewport);
provider->ShowUnhandledTapUIIfNeeded(std::move(tapped_info));
}
#endif // BUILDFLAG(ENABLE_UNHANDLED_TAP)
}
PointerId GestureManager::GetPointerIdFromWebGestureEvent(
const WebGestureEvent& gesture_event) const {
if (!frame_->IsLocalRoot()) {
return frame_->LocalFrameRoot()
.GetEventHandler()
.GetGestureManager()
.GetPointerIdFromWebGestureEvent(gesture_event);
}
// When tests send Tap, LongTap, LongPress, TwoFingerTap directly
// (e.g. from eventSender) there is no primary_unique_touch_event_id
// populated.
if (gesture_event.primary_unique_touch_event_id == 0)
return PointerEventFactory::kInvalidId;
return pointer_event_manager_->GetPointerIdForTouchGesture(
gesture_event.primary_unique_touch_event_id);
}
} // namespace blink
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