widget_base_input_handler.cc | Explore in Territory

// Copyright 2015 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/platform/widget/input/widget_base_input_handler.h"

#include <stddef.h>
#include <stdint.h>
#include <utility>

#include "base/memory/raw_ptr.h"
#include "base/metrics/histogram_macros.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "cc/metrics/event_metrics.h"
#include "cc/paint/element_id.h"
#include "cc/trees/latency_info_swap_promise_monitor.h"
#include "cc/trees/layer_tree_host.h"
#include "services/tracing/public/cpp/perfetto/flow_event_utils.h"
#include "services/tracing/public/cpp/perfetto/macros.h"
#include "third_party/blink/public/common/features.h"
#include "third_party/blink/public/common/input/web_gesture_device.h"
#include "third_party/blink/public/common/input/web_gesture_event.h"
#include "third_party/blink/public/common/input/web_input_event_attribution.h"
#include "third_party/blink/public/common/input/web_keyboard_event.h"
#include "third_party/blink/public/common/input/web_mouse_wheel_event.h"
#include "third_party/blink/public/common/input/web_pointer_event.h"
#include "third_party/blink/public/common/input/web_touch_event.h"
#include "third_party/blink/public/mojom/input/input_event_result.mojom-shared.h"
#include "third_party/blink/public/platform/web_input_event_result.h"
#include "third_party/blink/renderer/platform/widget/input/ime_event_guard.h"
#include "third_party/blink/renderer/platform/widget/widget_base.h"
#include "third_party/blink/renderer/platform/widget/widget_base_client.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
#include "ui/latency/latency_info.h"

#if BUILDFLAG(IS_ANDROID)
#include <android/keycodes.h>
#endif

ChromeLatencyInfo;
TrackEvent;

namespace blink {

namespace {

void LogPassiveEventListenersUma(WebInputEventResult result,
                                 WebInputEvent::DispatchType dispatch_type) { … }

void LogAllPassiveEventListenersUma(const WebInputEvent& input_event,
                                    WebInputEventResult result) { … }

WebCoalescedInputEvent GetCoalescedWebPointerEventForTouch(
    const WebPointerEvent& pointer_event,
    const std::vector<std::unique_ptr<WebInputEvent>>& coalesced_events,
    const std::vector<std::unique_ptr<WebInputEvent>>& predicted_events,
    const ui::LatencyInfo& latency) { … }

mojom::blink::InputEventResultState GetAckResult(
    WebInputEventResult processed) { … }

bool IsGestureScroll(WebInputEvent::Type type) { … }

gfx::PointF PositionInWidgetFromInputEvent(const WebInputEvent& event) { … }

bool IsTouchStartOrMove(const WebInputEvent& event) { … }

}  // namespace

// This class should be placed on the stack when handling an input event. It
// stores information from callbacks from blink while handling an input event
// and allows them to be returned in the InputEventAck result.
class WidgetBaseInputHandler::HandlingState { … };

WidgetBaseInputHandler::WidgetBaseInputHandler(WidgetBase* widget)
    : … { … }

WebInputEventResult WidgetBaseInputHandler::HandleTouchEvent(
    const WebCoalescedInputEvent& coalesced_event) { … }

void WidgetBaseInputHandler::HandleInputEvent(
    const WebCoalescedInputEvent& coalesced_event,
    std::unique_ptr<cc::EventMetrics> metrics,
    HandledEventCallback callback) { … }

void WidgetBaseInputHandler::InjectScrollbarGestureScroll(
    const gfx::Vector2dF& delta,
    ui::ScrollGranularity granularity,
    cc::ElementId scrollable_area_element_id,
    WebInputEvent::Type injected_type) { … }

void WidgetBaseInputHandler::HandleInjectedScrollGestures(
    Vector<InjectScrollGestureParams> injected_scroll_params,
    const WebInputEvent& input_event,
    const ui::LatencyInfo& original_latency_info,
    const cc::EventMetrics* original_metrics) { … }

bool WidgetBaseInputHandler::DidChangeCursor(const ui::Cursor& cursor) { … }

bool WidgetBaseInputHandler::ProcessTouchAction(WebTouchAction touch_action) { … }

}  // namespace blink
chromium/third_party/blink/renderer/platform/widget/input/widget_base_input_handler.cc
