| /* |
| * Copyright (C) 2014 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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 <gtk/gtk.h> |
| #include <wtf/HashMap.h> |
| #include <wtf/Noncopyable.h> |
| #include <wtf/glib/GRefPtr.h> |
| |
| typedef struct _GdkDragContext GdkDragContext; |
| typedef struct _GtkSelectionData GtkSelectionData; |
| |
| namespace WebCore { |
| class DragData; |
| class SelectionData; |
| } |
| |
| namespace WebKit { |
| |
| class ShareableBitmap; |
| class WebPageProxy; |
| |
| class DragAndDropHandler { |
| WTF_MAKE_NONCOPYABLE(DragAndDropHandler); |
| public: |
| DragAndDropHandler(WebPageProxy&); |
| |
| void startDrag(Ref<WebCore::SelectionData>&&, WebCore::DragOperation, RefPtr<ShareableBitmap>&& dragImage); |
| void fillDragData(GdkDragContext*, GtkSelectionData*, unsigned info); |
| void finishDrag(GdkDragContext*); |
| |
| void dragEntered(GdkDragContext*, GtkSelectionData*, unsigned info, unsigned time); |
| void dragMotion(GdkDragContext*, const WebCore::IntPoint& position, unsigned time); |
| void dragLeave(GdkDragContext*); |
| bool drop(GdkDragContext*, const WebCore::IntPoint& position, unsigned time); |
| |
| private: |
| struct DroppingContext { |
| DroppingContext(GdkDragContext*, const WebCore::IntPoint& position); |
| |
| GdkDragContext* gdkContext { nullptr }; |
| WebCore::IntPoint lastMotionPosition; |
| Ref<WebCore::SelectionData> selectionData; |
| unsigned pendingDataRequests { 0 }; |
| bool dropHappened { false }; |
| }; |
| |
| WebCore::SelectionData* dropDataSelection(GdkDragContext*, GtkSelectionData*, unsigned info, WebCore::IntPoint& position); |
| WebCore::SelectionData* dragDataSelection(GdkDragContext*, const WebCore::IntPoint& position, unsigned time); |
| |
| WebPageProxy& m_page; |
| HashMap<GdkDragContext*, std::unique_ptr<DroppingContext>> m_droppingContexts; |
| |
| #if GTK_CHECK_VERSION(3, 16, 0) |
| GRefPtr<GdkDragContext> m_dragContext; |
| RefPtr<WebCore::SelectionData> m_draggingSelectionData; |
| #else |
| // We don't have gtk_drag_cancel() in GTK+ < 3.16, so we use the old code. |
| // See https://bugs.webkit.org/show_bug.cgi?id=138468 |
| HashMap<GdkDragContext*, RefPtr<WebCore::SelectionData>> m_draggingSelectionDataMap; |
| #endif |
| }; |
| |
| } // namespace WebKit |
| |
| #endif // ENABLE(DRAG_SUPPORT) |