chromium/ui/views/widget/drop_helper.cc

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/views/widget/drop_helper.h"

#include <memory>
#include <set>
#include <utility>

#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/functional/callback_helpers.h"
#include "base/no_destructor.h"
#include "build/build_config.h"
#include "ui/base/dragdrop/drag_drop_types.h"
#include "ui/base/dragdrop/mojom/drag_drop_types.mojom.h"
#include "ui/compositor/layer_tree_owner.h"
#include "ui/views/view.h"
#include "ui/views/widget/widget.h"

namespace views {
namespace {

DragOperation;

const View* g_drag_entered_callback_view = …;

base::RepeatingClosure* GetDragEnteredCallback() { … }

}  // namespace

DropHelper::DropHelper(View* root_view) : … { … }

DropHelper::~DropHelper() = default;

// static
void DropHelper::SetDragEnteredCallbackForTesting(
    const View* view,
    base::RepeatingClosure callback) { … }

void DropHelper::ResetTargetViewIfEquals(View* view) { … }

int DropHelper::OnDragOver(const OSExchangeData& data,
                           const gfx::Point& root_view_location,
                           int drag_operation) { … }

void DropHelper::OnDragExit() { … }

DragOperation DropHelper::OnDrop(const OSExchangeData& data,
                                 const gfx::Point& root_view_location,
                                 int drag_operation) { … }

DropHelper::DropCallback DropHelper::GetDropCallback(
    const OSExchangeData& data,
    const gfx::Point& root_view_location,
    int drag_operation) { … }

View* DropHelper::CalculateTargetView(const gfx::Point& root_view_location,
                                      const OSExchangeData& data,
                                      bool check_can_drop) { … }

View* DropHelper::CalculateTargetViewImpl(const gfx::Point& root_view_location,
                                          const OSExchangeData& data,
                                          bool check_can_drop,
                                          raw_ptr<View>* deepest_view) { … }

void DropHelper::NotifyDragEntered(const OSExchangeData& data,
                                   const gfx::Point& root_view_location,
                                   int drag_operation) { … }

int DropHelper::NotifyDragOver(const OSExchangeData& data,
                               const gfx::Point& root_view_location,
                               int drag_operation) { … }

void DropHelper::NotifyDragExit() { … }

}  // namespace views