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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/input/touch_selection_controller_input_observer.h"
#include "content/browser/renderer_host/render_widget_host_view_base.h"
#include "content/public/browser/render_widget_host_view.h"
#include "third_party/blink/public/common/input/web_gesture_event.h"
#include "ui/events/types/event_type.h"
namespace content {
namespace {
#define UI_EVENT_TYPE_CASE(x) \
case blink::WebInputEvent::Type::x: \
return ui::EventType::x
ui::EventType FromBlinkScrollTypeToUiEventType(
blink::WebInputEvent::Type type) {
switch (type) {
UI_EVENT_TYPE_CASE(kGestureScrollBegin);
UI_EVENT_TYPE_CASE(kGestureScrollUpdate);
UI_EVENT_TYPE_CASE(kGestureScrollEnd);
default:
NOTREACHED();
}
}
#undef UI_EVENT_TYPE_CASE
} // namespace
TouchSelectionControllerInputObserver::TouchSelectionControllerInputObserver(
ui::TouchSelectionController* controller,
TouchSelectionControllerClientManager* manager)
: controller_(controller), manager_(manager) {}
void TouchSelectionControllerInputObserver::OnInputEvent(
const RenderWidgetHost& widget,
const blink::WebInputEvent& input_event) {
if (!blink::WebInputEvent::IsGestureEventType(input_event.GetType())) {
return;
}
const blink::WebGestureEvent& gesture_event =
*(static_cast<const blink::WebGestureEvent*>(&input_event));
if (gesture_event.SourceDevice() != blink::WebGestureDevice::kTouchscreen) {
return;
}
CHECK(widget.GetView());
const gfx::PointF point_in_root =
widget.GetView()->TransformPointToRootCoordSpaceF(
gesture_event.PositionInWidget());
switch (gesture_event.GetType()) {
case blink::WebInputEvent::Type::kGestureLongPress:
controller_->HandleLongPressEvent(gesture_event.TimeStamp(),
point_in_root);
return;
case blink::WebInputEvent::Type::kGestureTapDown:
if (gesture_event.data.tap_down.tap_down_count == 2) {
controller_->HandleDoublePressEvent(gesture_event.TimeStamp(),
point_in_root);
}
return;
case blink::WebInputEvent::Type::kGestureTap:
controller_->HandleTapEvent(point_in_root,
gesture_event.data.tap.tap_count);
return;
case blink::WebInputEvent::Type::kGestureScrollBegin:
controller_->OnScrollBeginEvent();
return;
default:
// These are events we don't care about like ShowPress, TapCancel, etc.
return;
}
}
void TouchSelectionControllerInputObserver::OnInputEventAck(
const RenderWidgetHost& widget,
blink::mojom::InputEventResultSource source,
blink::mojom::InputEventResultState state,
const blink::WebInputEvent& input_event) {
if (!input_event.IsGestureScroll()) {
return;
}
const blink::WebGestureEvent& event =
*(static_cast<const blink::WebGestureEvent*>(&input_event));
const ui::EventType type = FromBlinkScrollTypeToUiEventType(event.GetType());
const gfx::PointF& point = event.PositionInWidget();
std::optional<bool> cursor_control = std::nullopt;
if (type == ui::EventType::kGestureScrollBegin) {
cursor_control = event.data.scroll_begin.cursor_control;
}
CHECK(widget.GetView());
const auto* view =
static_cast<const RenderWidgetHostViewBase*>(widget.GetView());
const bool is_root_view = !view->IsRenderWidgetHostViewChildFrame();
controller_->HandleSwipeToMoveCursorGestureAck(type, point, cursor_control,
is_root_view);
}
} // namespace content
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