chromium/third_party/blink/renderer/core/input/mouse_wheel_event_manager.cc

// Copyright 2017 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/mouse_wheel_event_manager.h"

#include "build/build_config.h"
#include "third_party/blink/public/common/input/web_mouse_wheel_event.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/dom/flat_tree_traversal.h"
#include "third_party/blink/renderer/core/events/wheel_event.h"
#include "third_party/blink/renderer/core/frame/local_dom_window.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/input/event_handling_util.h"
#include "third_party/blink/renderer/core/layout/hit_test_request.h"
#include "third_party/blink/renderer/core/layout/hit_test_result.h"
#include "third_party/blink/renderer/core/layout/layout_view.h"
#include "third_party/blink/renderer/core/page/pointer_lock_controller.h"
#include "ui/gfx/geometry/point_conversions.h"

namespace blink {

namespace {

gfx::Vector2dF ResolveMouseWheelPercentToWheelDelta(
    const WebMouseWheelEvent& event) { … }

}  // namespace

MouseWheelEventManager::MouseWheelEventManager(LocalFrame& frame,
                                               ScrollManager& scroll_manager)
    : … { … }

void MouseWheelEventManager::Trace(Visitor* visitor) const { … }

void MouseWheelEventManager::Clear() { … }

WebInputEventResult MouseWheelEventManager::HandleWheelEvent(
    const WebMouseWheelEvent& event) { … }

void MouseWheelEventManager::ElementRemoved(Node* target) { … }

Node* MouseWheelEventManager::FindTargetNode(const WebMouseWheelEvent& event,
                                             const Document* doc,
                                             const LocalFrameView* view) { … }

}  // namespace blink