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+/*
+ * Copyright (C) 2011, 2012, 2015 Apple Inc. All rights reserved.
+ *
+ * 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.
+ */
+
+#ifndef DeprecatedPDFPlugin_h
+#define DeprecatedPDFPlugin_h
+
+#include "PDFKitImports.h"
+
+#if ENABLE(PDFKIT_PLUGIN) && USE(DEPRECATED_PDF_PLUGIN)
+
+#include "Plugin.h"
+#include "WebEvent.h"
+#include "WebHitTestResultData.h"
+#include <WebCore/AffineTransform.h>
+#include <WebCore/FindOptions.h>
+#include <WebCore/ScrollableArea.h>
+#include <wtf/RetainPtr.h>
+
+typedef const struct OpaqueJSContext* JSContextRef;
+typedef struct OpaqueJSValue* JSObjectRef;
+typedef const struct OpaqueJSValue* JSValueRef;
+
+OBJC_CLASS NSArray;
+OBJC_CLASS NSAttributedString;
+OBJC_CLASS NSData;
+OBJC_CLASS NSString;
+OBJC_CLASS PDFAnnotation;
+OBJC_CLASS PDFLayerController;
+OBJC_CLASS PDFSelection;
+OBJC_CLASS WKPDFPluginAccessibilityObject;
+OBJC_CLASS WKPDFLayerControllerDelegate;
+
+namespace IPC {
+class DataReference;
+}
+
+namespace WebCore {
+class Element;
+struct PluginInfo;
+}
+
+namespace WebKit {
+
+class PDFPluginAnnotation;
+class PDFPluginPasswordField;
+class PluginView;
+class WebFrame;
+
+class PDFPlugin final : public Plugin, private WebCore::ScrollableArea {
+public:
+    static Ref<PDFPlugin> create(WebFrame*);
+    ~PDFPlugin();
+
+    static WebCore::PluginInfo pluginInfo();
+
+    WebCore::IntSize size() const { return m_size; }
+
+    void didMutatePDFDocument() { m_pdfDocumentWasMutated = true; }
+
+    void paintControlForLayerInContext(CALayer *, CGContextRef);
+    void setActiveAnnotation(PDFAnnotation *);
+    
+    using ScrollableArea::notifyScrollPositionChanged;
+    void notifyContentScaleFactorChanged(CGFloat scaleFactor);
+    void notifyDisplayModeChanged(int);
+
+    void notifySelectionChanged(PDFSelection *);
+
+    void clickedLink(NSURL *);
+    void saveToPDF();
+    void openWithNativeApplication();
+    void writeItemsToPasteboard(NSString *pasteboardName, NSArray *items, NSArray *types);
+    void showDefinitionForAttributedString(NSAttributedString *, CGPoint);
+    void performWebSearch(NSString *);
+    void performSpotlightSearch(NSString *);
+
+    void focusNextAnnotation();
+    void focusPreviousAnnotation();
+
+    void attemptToUnlockPDF(const String& password);
+
+    WebCore::FloatRect convertFromPDFViewToScreen(const WebCore::FloatRect&) const;
+    WebCore::IntRect boundsOnScreen() const;
+    
+    bool showContextMenuAtPoint(const WebCore::IntPoint&);
+
+    String lookupTextAtLocation(const WebCore::FloatPoint&, WebHitTestResultData&, PDFSelection **, NSDictionary **) const;
+    WebCore::FloatRect rectForSelectionInRootView(PDFSelection *) const;
+
+    CGFloat scaleFactor() const;
+
+    bool shouldPlaceBlockDirectionScrollbarOnLeft() const override { return false; }
+
+private:
+    explicit PDFPlugin(WebFrame*);
+
+    // Plugin functions.
+    bool initialize(const Parameters&) override;
+    void destroy() override;
+    void paint(WebCore::GraphicsContext&, const WebCore::IntRect& dirtyRectInWindowCoordinates) override { }
+    void updateControlTints(WebCore::GraphicsContext&) override;
+    bool supportsSnapshotting() const override { return true; }
+    RefPtr<ShareableBitmap> snapshot() override;
+    PlatformLayer* pluginLayer() override;
+    bool isTransparent() override { return false; }
+    bool wantsWheelEvents() override { return true; }
+    void geometryDidChange(const WebCore::IntSize& pluginSize, const WebCore::IntRect& clipRect, const WebCore::AffineTransform& pluginToRootViewTransform) override;
+    void contentsScaleFactorChanged(float) override;
+    void visibilityDidChange(bool) override { }
+    void frameDidFinishLoading(uint64_t requestID) override;
+    void frameDidFail(uint64_t requestID, bool wasCancelled) override;
+    void didEvaluateJavaScript(uint64_t requestID, const String& result) override;
+    void streamWillSendRequest(uint64_t streamID, const WebCore::URL& requestURL, const WebCore::URL& responseURL, int responseStatus) override { }
+    void streamDidReceiveResponse(uint64_t streamID, const WebCore::URL& responseURL, uint32_t streamLength, uint32_t lastModifiedTime, const String& mimeType, const String& headers, const String& suggestedFileName) override;
+    void streamDidReceiveData(uint64_t streamID, const char* bytes, int length) override;
+    void streamDidFinishLoading(uint64_t streamID) override;
+    void streamDidFail(uint64_t streamID, bool wasCancelled) override;
+    void manualStreamDidReceiveResponse(const WebCore::URL& responseURL, uint32_t streamLength, uint32_t lastModifiedTime, const WTF::String& mimeType, const WTF::String& headers, const String& suggestedFileName) override;
+    void manualStreamDidReceiveData(const char* bytes, int length) override;
+    void manualStreamDidFinishLoading() override;
+    void manualStreamDidFail(bool wasCancelled) override;
+    bool handleMouseEvent(const WebMouseEvent&) override;
+    bool handleWheelEvent(const WebWheelEvent&) override;
+    bool handleMouseEnterEvent(const WebMouseEvent&) override;
+    bool handleMouseLeaveEvent(const WebMouseEvent&) override;
+    bool handleContextMenuEvent(const WebMouseEvent&) override;
+    bool handleKeyboardEvent(const WebKeyboardEvent&) override;
+    bool handleEditingCommand(const String& commandName, const String& argument) override;
+    bool isEditingCommandEnabled(const String&) override;
+    bool handlesPageScaleFactor() const override;
+    bool requiresUnifiedScaleFactor() const override { return true; }
+    void setFocus(bool) override { }
+    NPObject* pluginScriptableNPObject() override { return 0; }
+    void windowFocusChanged(bool) override { }
+    void windowAndViewFramesChanged(const WebCore::IntRect& windowFrameInScreenCoordinates, const WebCore::IntRect& viewFrameInWindowCoordinates) override { }
+    void windowVisibilityChanged(bool) override { }
+    uint64_t pluginComplexTextInputIdentifier() const override { return 0; }
+    void sendComplexTextInput(const String& textInput) override { }
+    void setLayerHostingMode(LayerHostingMode) override { }
+    WebCore::Scrollbar* horizontalScrollbar() override { return m_horizontalScrollbar.get(); }
+    WebCore::Scrollbar* verticalScrollbar() override { return m_verticalScrollbar.get(); }
+    void storageBlockingStateChanged(bool) override { }
+    void privateBrowsingStateChanged(bool) override { }
+    bool getFormValue(String& formValue) override { return false; }
+    bool handleScroll(WebCore::ScrollDirection, WebCore::ScrollGranularity) override;
+    RefPtr<WebCore::SharedBuffer> liveResourceData() const override;
+    void willDetatchRenderer() override;
+
+    bool isBeingAsynchronouslyInitialized() const override { return false; }
+
+    RetainPtr<PDFDocument> pdfDocumentForPrinting() const override { return m_pdfDocument; }
+    NSObject *accessibilityObject() const override;
+
+    unsigned countFindMatches(const String& target, WebCore::FindOptions, unsigned maxMatchCount) override;
+    bool findString(const String& target, WebCore::FindOptions, unsigned maxMatchCount) override;
+
+    PDFSelection *nextMatchForString(const String& target, BOOL searchForward, BOOL caseSensitive, BOOL wrapSearch, PDFSelection *initialSelection, BOOL startInSelection);
+
+    bool performDictionaryLookupAtLocation(const WebCore::FloatPoint&) override;
+    String getSelectionString() const override;
+    String getSelectionForWordAtPoint(const WebCore::FloatPoint&) const override;
+    bool existingSelectionContainsPoint(const WebCore::FloatPoint&) const override;
+
+    bool shouldAllowScripting() override { return false; }
+    bool shouldAllowNavigationFromDrags() override { return true; }
+    bool shouldAlwaysAutoStart() const override { return true; }
+
+    // ScrollableArea functions.
+    WebCore::IntRect scrollCornerRect() const override;
+    WebCore::ScrollableArea* enclosingScrollableArea() const override;
+    bool isScrollableOrRubberbandable() override { return true; }
+    bool hasScrollableOrRubberbandableAncestor() override { return true; }
+    WebCore::IntRect scrollableAreaBoundingBox(bool* = nullptr) const override;
+    void setScrollOffset(const WebCore::ScrollOffset&) override;
+    void invalidateScrollbarRect(WebCore::Scrollbar&, const WebCore::IntRect&) override;
+    void invalidateScrollCornerRect(const WebCore::IntRect&) override;
+    WebCore::IntPoint lastKnownMousePosition() const override { return m_lastMousePositionInPluginCoordinates; }
+    int scrollSize(WebCore::ScrollbarOrientation) const override;
+    bool isActive() const override;
+    bool isScrollCornerVisible() const override { return false; }
+    int scrollOffset(WebCore::ScrollbarOrientation) const override;
+    WebCore::ScrollPosition scrollPosition() const override;
+    WebCore::ScrollPosition minimumScrollPosition() const override;
+    WebCore::ScrollPosition maximumScrollPosition() const override;
+    WebCore::IntSize visibleSize() const override { return m_size; }
+    WebCore::IntSize contentsSize() const override { return m_pdfDocumentSize; }
+    WebCore::Scrollbar* horizontalScrollbar() const override { return m_horizontalScrollbar.get(); }
+    WebCore::Scrollbar* verticalScrollbar() const override { return m_verticalScrollbar.get(); }
+    bool shouldSuspendScrollAnimations() const override { return false; } // If we return true, ScrollAnimatorMac will keep cycling a timer forever, waiting for a good time to animate.
+    void scrollbarStyleChanged(WebCore::ScrollbarStyle, bool forceUpdate) override;
+    WebCore::IntRect convertFromScrollbarToContainingView(const WebCore::Scrollbar&, const WebCore::IntRect& scrollbarRect) const override;
+    WebCore::IntRect convertFromContainingViewToScrollbar(const WebCore::Scrollbar&, const WebCore::IntRect& parentRect) const override;
+    WebCore::IntPoint convertFromScrollbarToContainingView(const WebCore::Scrollbar&, const WebCore::IntPoint& scrollbarPoint) const override;
+    WebCore::IntPoint convertFromContainingViewToScrollbar(const WebCore::Scrollbar&, const WebCore::IntPoint& parentPoint) const override;
+    bool forceUpdateScrollbarsOnMainThreadForPerformanceTesting() const override;
+
+    // PDFPlugin functions.
+    void updateScrollbars();
+    Ref<WebCore::Scrollbar> createScrollbar(WebCore::ScrollbarOrientation);
+    void destroyScrollbar(WebCore::ScrollbarOrientation);
+    void pdfDocumentDidLoad();
+    void addArchiveResource();
+    void computePageBoxes();
+    void calculateSizes();
+    void runScriptsInPDFDocument();
+
+    NSEvent *nsEventForWebMouseEvent(const WebMouseEvent&);
+    WebCore::IntPoint convertFromPluginToPDFView(const WebCore::IntPoint&) const;
+    WebCore::IntPoint convertFromRootViewToPlugin(const WebCore::IntPoint&) const;
+    WebCore::IntPoint convertFromPDFViewToRootView(const WebCore::IntPoint&) const;
+    
+    bool supportsForms();
+    bool isFullFramePlugin() const;
+
+    void updatePageAndDeviceScaleFactors();
+
+    void createPasswordEntryForm();
+
+    RetainPtr<PDFDocument> pdfDocument() const { return m_pdfDocument; }
+    void setPDFDocument(RetainPtr<PDFDocument> document) { m_pdfDocument = document; }
+
+    WebCore::IntSize pdfDocumentSize() const { return m_pdfDocumentSize; }
+    void setPDFDocumentSize(WebCore::IntSize size) { m_pdfDocumentSize = size; }
+
+    NSData *liveData() const;
+    NSData *rawData() const { return (NSData *)m_data.get(); }
+
+    WebFrame* webFrame() const { return m_frame; }
+
+    enum UpdateCursorMode {
+        UpdateIfNeeded,
+        ForceUpdate
+    };
+
+    enum HitTestResult {
+        None,
+        Text
+    };
+
+    void updateCursor(const WebMouseEvent&, UpdateCursorMode = UpdateIfNeeded);
+
+    JSObjectRef makeJSPDFDoc(JSContextRef);
+    static JSValueRef jsPDFDocPrint(JSContextRef, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception);
+
+    void convertPostScriptDataIfNeeded();
+
+    // Regular plug-ins don't need access to view, but we add scrollbars to embedding FrameView for proper event handling.
+    PluginView* pluginView();
+    const PluginView* pluginView() const;
+
+    WebFrame* m_frame;
+
+    bool m_isPostScript;
+    bool m_pdfDocumentWasMutated;
+
+    WebCore::IntSize m_scrollOffset;
+
+    RetainPtr<CALayer> m_containerLayer;
+    RetainPtr<CALayer> m_contentLayer;
+    RetainPtr<CALayer> m_horizontalScrollbarLayer;
+    RetainPtr<CALayer> m_verticalScrollbarLayer;
+    RetainPtr<CALayer> m_scrollCornerLayer;
+    RetainPtr<PDFLayerController> m_pdfLayerController;
+    RetainPtr<WKPDFPluginAccessibilityObject> m_accessibilityObject;
+    
+    RefPtr<PDFPluginAnnotation> m_activeAnnotation;
+    RefPtr<PDFPluginPasswordField> m_passwordField;
+    RefPtr<WebCore::Element> m_annotationContainer;
+
+    WebCore::AffineTransform m_rootViewToPluginTransform;
+    WebMouseEvent m_lastMouseEvent;
+    WebCore::IntPoint m_lastMousePositionInPluginCoordinates;
+
+    String m_temporaryPDFUUID;
+
+    String m_lastFoundString;
+
+    HitTestResult m_lastHitTestResult;
+    
+    RetainPtr<WKPDFLayerControllerDelegate> m_pdfLayerControllerDelegate;
+
+    WebCore::IntSize m_size;
+
+    WebCore::URL m_sourceURL;
+
+    String m_suggestedFilename;
+    RetainPtr<CFMutableDataRef> m_data;
+
+    RetainPtr<PDFDocument> m_pdfDocument;
+    Vector<WebCore::IntRect> m_pageBoxes;
+    WebCore::IntSize m_pdfDocumentSize; // All pages, including gaps.
+
+    RefPtr<WebCore::Scrollbar> m_horizontalScrollbar;
+    RefPtr<WebCore::Scrollbar> m_verticalScrollbar;
+};
+
+} // namespace WebKit
+
+SPECIALIZE_TYPE_TRAITS_PLUGIN(PDFPlugin, PDFPluginType)
+
+#endif // ENABLE(PDFKIT_PLUGIN)
+
+#endif // DeprecatedPDFPlugin_h