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DropTarget.h
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95 lines (81 loc) · 3.04 KB
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/*
* Copyright (C) 2020 Igalia S.L.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(DRAG_SUPPORT)
#include <WebCore/DragActions.h>
#include <WebCore/IntPoint.h>
#include <WebCore/SelectionData.h>
#include <wtf/Forward.h>
#include <wtf/Noncopyable.h>
#include <wtf/RunLoop.h>
#include <wtf/glib/GRefPtr.h>
typedef struct _GtkWidget GtkWidget;
#if USE(GTK4)
typedef struct _GdkDrop GdkDrop;
using PlatformDropContext = GdkDrop;
#else
typedef struct _GdkDragContext GdkDragContext;
typedef struct _GtkSelectionData GtkSelectionData;
using PlatformDropContext = GdkDragContext;
#endif
namespace WebKit {
class ShareableBitmap;
class DropTarget {
WTF_MAKE_NONCOPYABLE(DropTarget); WTF_MAKE_FAST_ALLOCATED;
public:
explicit DropTarget(GtkWidget*);
~DropTarget();
void didPerformAction();
private:
void accept(PlatformDropContext*, std::optional<WebCore::IntPoint> = std::nullopt, unsigned = 0);
void enter(WebCore::IntPoint&&, unsigned = 0);
void update(WebCore::IntPoint&&, unsigned = 0);
void leave();
void drop(WebCore::IntPoint&&, unsigned = 0);
#if USE(GTK4)
void loadData(const char* mimeType, CompletionHandler<void(GRefPtr<GBytes>&&)>&&);
void didLoadData();
#else
void dataReceived(WebCore::IntPoint&&, GtkSelectionData*, unsigned, unsigned);
void leaveTimerFired();
#endif
GtkWidget* m_webView { nullptr };
#if USE(GTK4)
GRefPtr<GdkDrop> m_drop;
#else
GRefPtr<GdkDragContext> m_drop;
#endif
std::optional<WebCore::IntPoint> m_position;
unsigned m_dataRequestCount { 0 };
std::optional<WebCore::SelectionData> m_selectionData;
std::optional<WebCore::DragOperation> m_operation;
#if USE(GTK4)
GRefPtr<GCancellable> m_cancellable;
#else
RunLoop::Timer<DropTarget> m_leaveTimer;
#endif
};
} // namespace WebKit
#endif // ENABLE(DRAG_SUPPORT)