/* * Copyright (C) 2009, 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. */ #import "config.h" #import "PDFPlugin.h" #if ENABLE(PDFKIT_PLUGIN) #import "ArgumentCoders.h" #import "AttributedString.h" #import "DataReference.h" #import "DictionaryPopupInfo.h" #import "PDFAnnotationTextWidgetDetails.h" #import "PDFKitImports.h" #import "PDFLayerControllerDetails.h" #import "PDFPluginAnnotation.h" #import "PDFPluginPasswordField.h" #import "PluginView.h" #import "WKAccessibilityWebPageObjectMac.h" #import "WKPageFindMatchesClient.h" #import "WebCoreArgumentCoders.h" #import "WebEvent.h" #import "WebEventConversion.h" #import "WebPage.h" #import "WebPageProxyMessages.h" #import "WebPasteboardProxyMessages.h" #import "WebProcess.h" #import <JavaScriptCore/JSContextRef.h> #import <JavaScriptCore/JSObjectRef.h> #import <JavaScriptCore/JSStringRef.h> #import <JavaScriptCore/JSStringRefCF.h> #import <PDFKit/PDFKit.h> #import <QuartzCore/QuartzCore.h> #import <WebCore/ArchiveResource.h> #import <WebCore/Chrome.h> #import <WebCore/Cursor.h> #import <WebCore/DictionaryLookup.h> #import <WebCore/DocumentLoader.h> #import <WebCore/FocusController.h> #import <WebCore/FormState.h> #import <WebCore/Frame.h> #import <WebCore/FrameLoader.h> #import <WebCore/FrameView.h> #import <WebCore/GraphicsContext.h> #import <WebCore/HTMLElement.h> #import <WebCore/HTMLFormElement.h> #import <WebCore/HTMLPlugInElement.h> #import <WebCore/LocalizedStrings.h> #import <WebCore/MainFrame.h> #import <WebCore/MouseEvent.h> #import <WebCore/Page.h> #import <WebCore/Pasteboard.h> #import <WebCore/PluginData.h> #import <WebCore/PluginDocument.h> #import <WebCore/RenderBoxModelObject.h> #import <WebCore/ScrollAnimator.h> #import <WebCore/ScrollbarTheme.h> #import <WebCore/Settings.h> #import <WebCore/UUID.h> #import <WebCore/WheelEventTestTrigger.h> #import <WebKitSystemInterface.h> #import <wtf/CurrentTime.h> using namespace WebCore; // Set overflow: hidden on the annotation container so <input> elements scrolled out of view don't show // scrollbars on the body. We can't add annotations directly to the body, because overflow: hidden on the body // will break rubber-banding. static const char* annotationStyle = "#annotationContainer {" " overflow: hidden; " " position: absolute; " " pointer-events: none; " " top: 0; " " left: 0; " " right: 0; " " bottom: 0; " " display: -webkit-box; " " -webkit-box-align: center; " " -webkit-box-pack: center; " "} " ".annotation { " " position: absolute; " " pointer-events: auto; " "} " "textarea.annotation { " " resize: none; " "} " "input.annotation[type='password'] { " " position: static; " " width: 200px; " " margin-top: 100px; " "} "; // In non-continuous modes, a single scroll event with a magnitude of >= 20px // will jump to the next or previous page, to match PDFKit behavior. static const int defaultScrollMagnitudeThresholdForPageFlip = 20; @interface WKPDFPluginAccessibilityObject : NSObject { PDFLayerController *_pdfLayerController; NSObject *_parent; WebKit::PDFPlugin* _pdfPlugin; } @property (assign) PDFLayerController *pdfLayerController; @property (assign) NSObject *parent; @property (assign) WebKit::PDFPlugin* pdfPlugin; - (id)initWithPDFPlugin:(WebKit::PDFPlugin *)plugin; @end @implementation WKPDFPluginAccessibilityObject @synthesize pdfLayerController=_pdfLayerController; @synthesize parent=_parent; @synthesize pdfPlugin=_pdfPlugin; - (id)initWithPDFPlugin:(WebKit::PDFPlugin *)plugin { if (!(self = [super init])) return nil; _pdfPlugin = plugin; return self; } - (BOOL)accessibilityIsIgnored { return NO; } - (id)accessibilityAttributeValue:(NSString *)attribute { if ([attribute isEqualToString:NSAccessibilityParentAttribute]) return _parent; if ([attribute isEqualToString:NSAccessibilityValueAttribute]) return [_pdfLayerController accessibilityValueAttribute]; if ([attribute isEqualToString:NSAccessibilitySelectedTextAttribute]) return [_pdfLayerController accessibilitySelectedTextAttribute]; if ([attribute isEqualToString:NSAccessibilitySelectedTextRangeAttribute]) return [_pdfLayerController accessibilitySelectedTextRangeAttribute]; if ([attribute isEqualToString:NSAccessibilityNumberOfCharactersAttribute]) return [_pdfLayerController accessibilityNumberOfCharactersAttribute]; if ([attribute isEqualToString:NSAccessibilityVisibleCharacterRangeAttribute]) return [_pdfLayerController accessibilityVisibleCharacterRangeAttribute]; if ([attribute isEqualToString:NSAccessibilityTopLevelUIElementAttribute]) return [_parent accessibilityAttributeValue:NSAccessibilityTopLevelUIElementAttribute]; if ([attribute isEqualToString:NSAccessibilityRoleAttribute]) return [_pdfLayerController accessibilityRoleAttribute]; if ([attribute isEqualToString:NSAccessibilityRoleDescriptionAttribute]) return [_pdfLayerController accessibilityRoleDescriptionAttribute]; if ([attribute isEqualToString:NSAccessibilityWindowAttribute]) return [_parent accessibilityAttributeValue:NSAccessibilityWindowAttribute]; if ([attribute isEqualToString:NSAccessibilitySizeAttribute]) return [NSValue valueWithSize:_pdfPlugin->boundsOnScreen().size()]; if ([attribute isEqualToString:NSAccessibilityFocusedAttribute]) return [_parent accessibilityAttributeValue:NSAccessibilityFocusedAttribute]; if ([attribute isEqualToString:NSAccessibilityEnabledAttribute]) return [_parent accessibilityAttributeValue:NSAccessibilityEnabledAttribute]; if ([attribute isEqualToString:NSAccessibilityPositionAttribute]) return [NSValue valueWithPoint:_pdfPlugin->boundsOnScreen().location()]; return 0; } - (id)accessibilityAttributeValue:(NSString *)attribute forParameter:(id)parameter { if ([attribute isEqualToString:NSAccessibilityBoundsForRangeParameterizedAttribute]) { NSRect boundsInPDFViewCoordinates = [[_pdfLayerController accessibilityBoundsForRangeAttributeForParameter:parameter] rectValue]; NSRect boundsInScreenCoordinates = _pdfPlugin->convertFromPDFViewToScreen(boundsInPDFViewCoordinates); return [NSValue valueWithRect:boundsInScreenCoordinates]; } if ([attribute isEqualToString:NSAccessibilityLineForIndexParameterizedAttribute]) return [_pdfLayerController accessibilityLineForIndexAttributeForParameter:parameter]; if ([attribute isEqualToString:NSAccessibilityRangeForLineParameterizedAttribute]) return [_pdfLayerController accessibilityRangeForLineAttributeForParameter:parameter]; if ([attribute isEqualToString:NSAccessibilityStringForRangeParameterizedAttribute]) return [_pdfLayerController accessibilityStringForRangeAttributeForParameter:parameter]; return 0; } - (CPReadingModel *)readingModel { return [_pdfLayerController readingModel]; } - (NSArray *)accessibilityAttributeNames { static NSArray *attributeNames = 0; if (!attributeNames) { attributeNames = @[NSAccessibilityValueAttribute, NSAccessibilitySelectedTextAttribute, NSAccessibilitySelectedTextRangeAttribute, NSAccessibilityNumberOfCharactersAttribute, NSAccessibilityVisibleCharacterRangeAttribute, NSAccessibilityParentAttribute, NSAccessibilityRoleAttribute, NSAccessibilityWindowAttribute, NSAccessibilityTopLevelUIElementAttribute, NSAccessibilityRoleDescriptionAttribute, NSAccessibilitySizeAttribute, NSAccessibilityFocusedAttribute, NSAccessibilityEnabledAttribute, NSAccessibilityPositionAttribute]; [attributeNames retain]; } return attributeNames; } - (NSArray *)accessibilityActionNames { static NSArray *actionNames = 0; if (!actionNames) actionNames = [[NSArray arrayWithObject:NSAccessibilityShowMenuAction] retain]; return actionNames; } - (void)accessibilityPerformAction:(NSString *)action { if ([action isEqualToString:NSAccessibilityShowMenuAction]) _pdfPlugin->showContextMenuAtPoint(IntRect(IntPoint(), _pdfPlugin->size()).center()); } - (BOOL)accessibilityIsAttributeSettable:(NSString *)attribute { return [_pdfLayerController accessibilityIsAttributeSettable:attribute]; } - (void)accessibilitySetValue:(id)value forAttribute:(NSString *)attribute { return [_pdfLayerController accessibilitySetValue:value forAttribute:attribute]; } - (NSArray *)accessibilityParameterizedAttributeNames { return [_pdfLayerController accessibilityParameterizedAttributeNames]; } - (id)accessibilityFocusedUIElement { return self; } - (id)accessibilityHitTest:(NSPoint)point { return self; } @end @interface WKPDFPluginScrollbarLayer : CALayer { WebKit::PDFPlugin* _pdfPlugin; } @property (assign) WebKit::PDFPlugin* pdfPlugin; @end @implementation WKPDFPluginScrollbarLayer @synthesize pdfPlugin=_pdfPlugin; - (id)initWithPDFPlugin:(WebKit::PDFPlugin *)plugin { if (!(self = [super init])) return nil; _pdfPlugin = plugin; return self; } - (id<CAAction>)actionForKey:(NSString *)key { return nil; } - (void)drawInContext:(CGContextRef)ctx { _pdfPlugin->paintControlForLayerInContext(self, ctx); } @end @interface WKPDFLayerControllerDelegate : NSObject<PDFLayerControllerDelegate> { WebKit::PDFPlugin* _pdfPlugin; } @property (assign) WebKit::PDFPlugin* pdfPlugin; @end @implementation WKPDFLayerControllerDelegate @synthesize pdfPlugin=_pdfPlugin; - (id)initWithPDFPlugin:(WebKit::PDFPlugin *)plugin { if (!(self = [super init])) return nil; _pdfPlugin = plugin; return self; } - (void)updateScrollPosition:(CGPoint)newPosition { _pdfPlugin->notifyScrollPositionChanged(IntPoint(newPosition)); } - (void)writeItemsToPasteboard:(NSArray *)items withTypes:(NSArray *)types { _pdfPlugin->writeItemsToPasteboard(NSGeneralPboard, items, types); } - (void)showDefinitionForAttributedString:(NSAttributedString *)string atPoint:(CGPoint)point { _pdfPlugin->showDefinitionForAttributedString(string, point); } - (void)performWebSearch:(NSString *)string { _pdfPlugin->performWebSearch(string); } - (void)performSpotlightSearch:(NSString *)string { _pdfPlugin->performSpotlightSearch(string); } - (void)openWithNativeApplication { _pdfPlugin->openWithNativeApplication(); } - (void)saveToPDF { _pdfPlugin->saveToPDF(); } - (void)pdfLayerController:(PDFLayerController *)pdfLayerController clickedLinkWithURL:(NSURL *)url { _pdfPlugin->clickedLink(url); } - (void)pdfLayerController:(PDFLayerController *)pdfLayerController didChangeActiveAnnotation:(PDFAnnotation *)annotation { _pdfPlugin->setActiveAnnotation(annotation); } - (void)pdfLayerController:(PDFLayerController *)pdfLayerController didChangeContentScaleFactor:(CGFloat)scaleFactor { _pdfPlugin->notifyContentScaleFactorChanged(scaleFactor); } - (void)pdfLayerController:(PDFLayerController *)pdfLayerController didChangeDisplayMode:(int)mode { _pdfPlugin->notifyDisplayModeChanged(mode); } - (void)pdfLayerController:(PDFLayerController *)pdfLayerController didChangeSelection:(PDFSelection *)selection { _pdfPlugin->notifySelectionChanged(selection); } @end @interface PDFViewLayout - (NSPoint)convertPoint:(NSPoint)point toPage:(PDFPage *)page forScaleFactor:(CGFloat)scaleFactor; - (NSRect)convertRect:(NSRect)rect fromPage:(PDFPage *) page forScaleFactor:(CGFloat) scaleFactor; - (PDFPage *)pageNearestPoint:(NSPoint)point currentPage:(PDFPage *)currentPage; @end static const char* postScriptMIMEType = "application/postscript"; const uint64_t pdfDocumentRequestID = 1; // PluginController supports loading multiple streams, but we only need one for PDF. static void appendValuesInPDFNameSubtreeToVector(CGPDFDictionaryRef subtree, Vector<CGPDFObjectRef>& values) { CGPDFArrayRef names; if (CGPDFDictionaryGetArray(subtree, "Names", &names)) { size_t nameCount = CGPDFArrayGetCount(names) / 2; for (size_t i = 0; i < nameCount; ++i) { CGPDFObjectRef object; CGPDFArrayGetObject(names, 2 * i + 1, &object); values.append(object); } return; } CGPDFArrayRef kids; if (!CGPDFDictionaryGetArray(subtree, "Kids", &kids)) return; size_t kidCount = CGPDFArrayGetCount(kids); for (size_t i = 0; i < kidCount; ++i) { CGPDFDictionaryRef kid; if (!CGPDFArrayGetDictionary(kids, i, &kid)) continue; appendValuesInPDFNameSubtreeToVector(kid, values); } } static void getAllValuesInPDFNameTree(CGPDFDictionaryRef tree, Vector<CGPDFObjectRef>& allValues) { appendValuesInPDFNameSubtreeToVector(tree, allValues); } static void getAllScriptsInPDFDocument(CGPDFDocumentRef pdfDocument, Vector<RetainPtr<CFStringRef>>& scripts) { if (!pdfDocument) return; CGPDFDictionaryRef pdfCatalog = CGPDFDocumentGetCatalog(pdfDocument); if (!pdfCatalog) return; // Get the dictionary of all document-level name trees. CGPDFDictionaryRef namesDictionary; if (!CGPDFDictionaryGetDictionary(pdfCatalog, "Names", &namesDictionary)) return; // Get the document-level "JavaScript" name tree. CGPDFDictionaryRef javaScriptNameTree; if (!CGPDFDictionaryGetDictionary(namesDictionary, "JavaScript", &javaScriptNameTree)) return; // The names are arbitrary. We are only interested in the values. Vector<CGPDFObjectRef> objects; getAllValuesInPDFNameTree(javaScriptNameTree, objects); size_t objectCount = objects.size(); for (size_t i = 0; i < objectCount; ++i) { CGPDFDictionaryRef javaScriptAction; if (!CGPDFObjectGetValue(reinterpret_cast<CGPDFObjectRef>(objects[i]), kCGPDFObjectTypeDictionary, &javaScriptAction)) continue; // A JavaScript action must have an action type of "JavaScript". const char* actionType; if (!CGPDFDictionaryGetName(javaScriptAction, "S", &actionType) || strcmp(actionType, "JavaScript")) continue; const UInt8* bytes = 0; CFIndex length; CGPDFStreamRef stream; CGPDFStringRef string; RetainPtr<CFDataRef> data; if (CGPDFDictionaryGetStream(javaScriptAction, "JS", &stream)) { CGPDFDataFormat format; data = adoptCF(CGPDFStreamCopyData(stream, &format)); if (!data) continue; bytes = CFDataGetBytePtr(data.get()); length = CFDataGetLength(data.get()); } else if (CGPDFDictionaryGetString(javaScriptAction, "JS", &string)) { bytes = CGPDFStringGetBytePtr(string); length = CGPDFStringGetLength(string); } if (!bytes) continue; CFStringEncoding encoding = (length > 1 && bytes[0] == 0xFE && bytes[1] == 0xFF) ? kCFStringEncodingUnicode : kCFStringEncodingUTF8; RetainPtr<CFStringRef> script = adoptCF(CFStringCreateWithBytes(kCFAllocatorDefault, bytes, length, encoding, true)); if (!script) continue; scripts.append(script); } } namespace WebKit { using namespace HTMLNames; Ref<PDFPlugin> PDFPlugin::create(WebFrame* frame) { return adoptRef(*new PDFPlugin(frame)); } PDFPlugin::PDFPlugin(WebFrame* frame) : Plugin(PDFPluginType) , m_frame(frame) , m_isPostScript(false) , m_pdfDocumentWasMutated(false) , m_containerLayer(adoptNS([[CALayer alloc] init])) , m_contentLayer(adoptNS([[CALayer alloc] init])) , m_scrollCornerLayer(adoptNS([[WKPDFPluginScrollbarLayer alloc] initWithPDFPlugin:this])) , m_pdfLayerController(adoptNS([[pdfLayerControllerClass() alloc] init])) , m_pdfLayerControllerDelegate(adoptNS([[WKPDFLayerControllerDelegate alloc] initWithPDFPlugin:this])) { m_pdfLayerController.get().delegate = m_pdfLayerControllerDelegate.get(); m_pdfLayerController.get().parentLayer = m_contentLayer.get(); if (supportsForms()) { Document* document = webFrame()->coreFrame()->document(); m_annotationContainer = document->createElement(divTag, false); m_annotationContainer->setAttribute(idAttr, "annotationContainer"); RefPtr<Element> m_annotationStyle = document->createElement(styleTag, false); m_annotationStyle->setTextContent(annotationStyle, ASSERT_NO_EXCEPTION); m_annotationContainer->appendChild(m_annotationStyle.get()); document->bodyOrFrameset()->appendChild(m_annotationContainer.get()); } m_accessibilityObject = adoptNS([[WKPDFPluginAccessibilityObject alloc] initWithPDFPlugin:this]); m_accessibilityObject.get().pdfLayerController = m_pdfLayerController.get(); m_accessibilityObject.get().parent = webFrame()->page()->accessibilityRemoteObject(); [m_containerLayer addSublayer:m_contentLayer.get()]; [m_containerLayer addSublayer:m_scrollCornerLayer.get()]; } PDFPlugin::~PDFPlugin() { } PluginInfo PDFPlugin::pluginInfo() { PluginInfo info; info.name = builtInPDFPluginName(); info.isApplicationPlugin = true; info.clientLoadPolicy = PluginLoadClientPolicyUndefined; MimeClassInfo pdfMimeClassInfo; pdfMimeClassInfo.type = "application/pdf"; pdfMimeClassInfo.desc = pdfDocumentTypeDescription(); pdfMimeClassInfo.extensions.append("pdf"); info.mimes.append(pdfMimeClassInfo); MimeClassInfo textPDFMimeClassInfo; textPDFMimeClassInfo.type = "text/pdf"; textPDFMimeClassInfo.desc = pdfDocumentTypeDescription(); textPDFMimeClassInfo.extensions.append("pdf"); info.mimes.append(textPDFMimeClassInfo); MimeClassInfo postScriptMimeClassInfo; postScriptMimeClassInfo.type = postScriptMIMEType; postScriptMimeClassInfo.desc = postScriptDocumentTypeDescription(); postScriptMimeClassInfo.extensions.append("ps"); info.mimes.append(postScriptMimeClassInfo); return info; } void PDFPlugin::updateScrollbars() { bool hadScrollbars = m_horizontalScrollbar || m_verticalScrollbar; if (m_horizontalScrollbar) { if (m_size.width() >= m_pdfDocumentSize.width()) destroyScrollbar(HorizontalScrollbar); } else if (m_size.width() < m_pdfDocumentSize.width()) m_horizontalScrollbar = createScrollbar(HorizontalScrollbar); if (m_verticalScrollbar) { if (m_size.height() >= m_pdfDocumentSize.height()) destroyScrollbar(VerticalScrollbar); } else if (m_size.height() < m_pdfDocumentSize.height()) m_verticalScrollbar = createScrollbar(VerticalScrollbar); int horizontalScrollbarHeight = (m_horizontalScrollbar && !m_horizontalScrollbar->isOverlayScrollbar()) ? m_horizontalScrollbar->height() : 0; int verticalScrollbarWidth = (m_verticalScrollbar && !m_verticalScrollbar->isOverlayScrollbar()) ? m_verticalScrollbar->width() : 0; int pageStep = m_pageBoxes.isEmpty() ? 0 : m_pageBoxes[0].height(); if (m_horizontalScrollbar) { m_horizontalScrollbar->setSteps(Scrollbar::pixelsPerLineStep(), pageStep); m_horizontalScrollbar->setProportion(m_size.width() - verticalScrollbarWidth, m_pdfDocumentSize.width()); IntRect scrollbarRect(pluginView()->x(), pluginView()->y() + m_size.height() - m_horizontalScrollbar->height(), m_size.width(), m_horizontalScrollbar->height()); if (m_verticalScrollbar) scrollbarRect.contract(m_verticalScrollbar->width(), 0); m_horizontalScrollbar->setFrameRect(scrollbarRect); } if (m_verticalScrollbar) { m_verticalScrollbar->setSteps(Scrollbar::pixelsPerLineStep(), pageStep); m_verticalScrollbar->setProportion(m_size.height() - horizontalScrollbarHeight, m_pdfDocumentSize.height()); IntRect scrollbarRect(IntRect(pluginView()->x() + m_size.width() - m_verticalScrollbar->width(), pluginView()->y(), m_verticalScrollbar->width(), m_size.height())); if (m_horizontalScrollbar) scrollbarRect.contract(0, m_horizontalScrollbar->height()); m_verticalScrollbar->setFrameRect(scrollbarRect); } FrameView* frameView = m_frame->coreFrame()->view(); if (!frameView) return; bool hasScrollbars = m_horizontalScrollbar || m_verticalScrollbar; if (hadScrollbars != hasScrollbars) { if (hasScrollbars) frameView->addScrollableArea(this); else frameView->removeScrollableArea(this); frameView->setNeedsLayout(); } if (m_verticalScrollbarLayer) { m_verticalScrollbarLayer.get().frame = verticalScrollbar()->frameRect(); [m_verticalScrollbarLayer setNeedsDisplay]; } if (m_horizontalScrollbarLayer) { m_horizontalScrollbarLayer.get().frame = horizontalScrollbar()->frameRect(); [m_horizontalScrollbarLayer setNeedsDisplay]; } if (m_scrollCornerLayer) { m_scrollCornerLayer.get().frame = scrollCornerRect(); [m_scrollCornerLayer setNeedsDisplay]; } } PluginView* PDFPlugin::pluginView() { return static_cast<PluginView*>(controller()); } const PluginView* PDFPlugin::pluginView() const { return static_cast<const PluginView*>(controller()); } PassRefPtr<Scrollbar> PDFPlugin::createScrollbar(ScrollbarOrientation orientation) { RefPtr<Scrollbar> widget = Scrollbar::createNativeScrollbar(*this, orientation, RegularScrollbar); if (orientation == HorizontalScrollbar) { m_horizontalScrollbarLayer = adoptNS([[WKPDFPluginScrollbarLayer alloc] initWithPDFPlugin:this]); [m_containerLayer addSublayer:m_horizontalScrollbarLayer.get()]; } else { m_verticalScrollbarLayer = adoptNS([[WKPDFPluginScrollbarLayer alloc] initWithPDFPlugin:this]); [m_containerLayer addSublayer:m_verticalScrollbarLayer.get()]; } didAddScrollbar(widget.get(), orientation); if (Frame* frame = webFrame()->coreFrame()) { if (Page* page = frame->page()) { if (page->expectsWheelEventTriggers()) scrollAnimator().setWheelEventTestTrigger(page->testTrigger()); } } pluginView()->frame()->view()->addChild(widget.get()); return widget.release(); } void PDFPlugin::destroyScrollbar(ScrollbarOrientation orientation) { RefPtr<Scrollbar>& scrollbar = orientation == HorizontalScrollbar ? m_horizontalScrollbar : m_verticalScrollbar; if (!scrollbar) return; willRemoveScrollbar(scrollbar.get(), orientation); scrollbar->removeFromParent(); scrollbar = nullptr; if (orientation == HorizontalScrollbar) { [m_horizontalScrollbarLayer removeFromSuperlayer]; m_horizontalScrollbarLayer = 0; } else { [m_verticalScrollbarLayer removeFromSuperlayer]; m_verticalScrollbarLayer = 0; } } IntRect PDFPlugin::convertFromScrollbarToContainingView(const Scrollbar* scrollbar, const IntRect& scrollbarRect) const { IntRect rect = scrollbarRect; rect.move(scrollbar->location() - pluginView()->location()); return pluginView()->frame()->view()->convertFromRendererToContainingView(pluginView()->pluginElement()->renderer(), rect); } IntRect PDFPlugin::convertFromContainingViewToScrollbar(const Scrollbar* scrollbar, const IntRect& parentRect) const { IntRect rect = pluginView()->frame()->view()->convertFromContainingViewToRenderer(pluginView()->pluginElement()->renderer(), parentRect); rect.move(pluginView()->location() - scrollbar->location()); return rect; } IntPoint PDFPlugin::convertFromScrollbarToContainingView(const Scrollbar* scrollbar, const IntPoint& scrollbarPoint) const { IntPoint point = scrollbarPoint; point.move(scrollbar->location() - pluginView()->location()); return pluginView()->frame()->view()->convertFromRendererToContainingView(pluginView()->pluginElement()->renderer(), point); } IntPoint PDFPlugin::convertFromContainingViewToScrollbar(const Scrollbar* scrollbar, const IntPoint& parentPoint) const { IntPoint point = pluginView()->frame()->view()->convertFromContainingViewToRenderer(pluginView()->pluginElement()->renderer(), parentPoint); point.move(pluginView()->location() - scrollbar->location()); return point; } bool PDFPlugin::handleScroll(ScrollDirection direction, ScrollGranularity granularity) { return scroll(direction, granularity); } IntRect PDFPlugin::scrollCornerRect() const { if (!m_horizontalScrollbar || !m_verticalScrollbar) return IntRect(); if (m_horizontalScrollbar->isOverlayScrollbar()) { ASSERT(m_verticalScrollbar->isOverlayScrollbar()); return IntRect(); } return IntRect(pluginView()->width() - m_verticalScrollbar->width(), pluginView()->height() - m_horizontalScrollbar->height(), m_verticalScrollbar->width(), m_horizontalScrollbar->height()); } ScrollableArea* PDFPlugin::enclosingScrollableArea() const { // FIXME: Walk up the frame tree and look for a scrollable parent frame or RenderLayer. return nullptr; } IntRect PDFPlugin::scrollableAreaBoundingBox() const { return pluginView()->frameRect(); } int PDFPlugin::scrollSize(ScrollbarOrientation orientation) const { Scrollbar* scrollbar = ((orientation == HorizontalScrollbar) ? m_horizontalScrollbar : m_verticalScrollbar).get(); return scrollbar ? (scrollbar->totalSize() - scrollbar->visibleSize()) : 0; } bool PDFPlugin::isActive() const { if (Frame* coreFrame = m_frame->coreFrame()) { if (Page* page = coreFrame->page()) return page->focusController().isActive(); } return false; } bool PDFPlugin::forceUpdateScrollbarsOnMainThreadForPerformanceTesting() const { if (Frame* coreFrame = m_frame->coreFrame()) { if (Page* page = coreFrame->page()) return page->settings().forceUpdateScrollbarsOnMainThreadForPerformanceTesting(); } return false; } int PDFPlugin::scrollPosition(Scrollbar* scrollbar) const { if (scrollbar->orientation() == HorizontalScrollbar) return m_scrollOffset.width(); if (scrollbar->orientation() == VerticalScrollbar) return m_scrollOffset.height(); ASSERT_NOT_REACHED(); return 0; } IntPoint PDFPlugin::scrollPosition() const { return IntPoint(m_scrollOffset.width(), m_scrollOffset.height()); } IntPoint PDFPlugin::minimumScrollPosition() const { return IntPoint(); } IntPoint PDFPlugin::maximumScrollPosition() const { int horizontalScrollbarHeight = (m_horizontalScrollbar && !m_horizontalScrollbar->isOverlayScrollbar()) ? m_horizontalScrollbar->height() : 0; int verticalScrollbarWidth = (m_verticalScrollbar && !m_verticalScrollbar->isOverlayScrollbar()) ? m_verticalScrollbar->width() : 0; IntPoint maximumOffset(m_pdfDocumentSize.width() - m_size.width() + verticalScrollbarWidth, m_pdfDocumentSize.height() - m_size.height() + horizontalScrollbarHeight); maximumOffset.clampNegativeToZero(); return maximumOffset; } void PDFPlugin::scrollbarStyleChanged(ScrollbarStyle style, bool forceUpdate) { if (!forceUpdate) return; // If the PDF was scrolled all the way to bottom right and scrollbars change to overlay style, we don't want to display white rectangles where scrollbars were. IntPoint newScrollOffset = IntPoint(m_scrollOffset).shrunkTo(maximumScrollPosition()); setScrollOffset(newScrollOffset); ScrollableArea::scrollbarStyleChanged(style, forceUpdate); // As size of the content area changes, scrollbars may need to appear or to disappear. updateScrollbars(); } void PDFPlugin::addArchiveResource() { // FIXME: It's a hack to force add a resource to DocumentLoader. PDF documents should just be fetched as CachedResources. // Add just enough data for context menu handling and web archives to work. NSDictionary* headers = @{ @"Content-Disposition": (NSString *)m_suggestedFilename, @"Content-Type" : @"application/pdf" }; RetainPtr<NSURLResponse> response = adoptNS([[NSHTTPURLResponse alloc] initWithURL:m_sourceURL statusCode:200 HTTPVersion:(NSString*)kCFHTTPVersion1_1 headerFields:headers]); ResourceResponse synthesizedResponse(response.get()); RefPtr<ArchiveResource> resource = ArchiveResource::create(SharedBuffer::wrapCFData(m_data.get()), m_sourceURL, "application/pdf", String(), String(), synthesizedResponse); pluginView()->frame()->document()->loader()->addArchiveResource(resource.release()); } static void jsPDFDocInitialize(JSContextRef ctx, JSObjectRef object) { PDFPlugin* pdfView = static_cast<PDFPlugin*>(JSObjectGetPrivate(object)); pdfView->ref(); } static void jsPDFDocFinalize(JSObjectRef object) { PDFPlugin* pdfView = static_cast<PDFPlugin*>(JSObjectGetPrivate(object)); pdfView->deref(); } JSValueRef PDFPlugin::jsPDFDocPrint(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception) { PDFPlugin* pdfView = static_cast<PDFPlugin*>(JSObjectGetPrivate(thisObject)); WebFrame* frame = pdfView->m_frame; if (!frame) return JSValueMakeUndefined(ctx); Frame* coreFrame = frame->coreFrame(); if (!coreFrame) return JSValueMakeUndefined(ctx); Page* page = coreFrame->page(); if (!page) return JSValueMakeUndefined(ctx); page->chrome().print(coreFrame); return JSValueMakeUndefined(ctx); } JSObjectRef PDFPlugin::makeJSPDFDoc(JSContextRef ctx) { static JSStaticFunction jsPDFDocStaticFunctions[] = { { "print", jsPDFDocPrint, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete }, { 0, 0, 0 }, }; static JSClassDefinition jsPDFDocClassDefinition = { 0, kJSClassAttributeNone, "Doc", 0, 0, jsPDFDocStaticFunctions, jsPDFDocInitialize, jsPDFDocFinalize, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; static JSClassRef jsPDFDocClass = JSClassCreate(&jsPDFDocClassDefinition); return JSObjectMake(ctx, jsPDFDocClass, this); } static RetainPtr<CFMutableDataRef> convertPostScriptDataToPDF(RetainPtr<CFDataRef> postScriptData) { // Convert PostScript to PDF using the Quartz 2D API. // http://developer.apple.com/documentation/GraphicsImaging/Conceptual/drawingwithquartz2d/dq_ps_convert/chapter_16_section_1.html CGPSConverterCallbacks callbacks = { 0, 0, 0, 0, 0, 0, 0, 0 }; RetainPtr<CGPSConverterRef> converter = adoptCF(CGPSConverterCreate(0, &callbacks, 0)); RetainPtr<CGDataProviderRef> provider = adoptCF(CGDataProviderCreateWithCFData(postScriptData.get())); RetainPtr<CFMutableDataRef> pdfData = adoptCF(CFDataCreateMutable(kCFAllocatorDefault, 0)); RetainPtr<CGDataConsumerRef> consumer = adoptCF(CGDataConsumerCreateWithCFData(pdfData.get())); CGPSConverterConvert(converter.get(), provider.get(), consumer.get(), 0); return pdfData; } void PDFPlugin::convertPostScriptDataIfNeeded() { if (!m_isPostScript) return; m_suggestedFilename = String(m_suggestedFilename + ".pdf"); m_data = convertPostScriptDataToPDF(m_data); } void PDFPlugin::pdfDocumentDidLoad() { addArchiveResource(); RetainPtr<PDFDocument> document = adoptNS([[pdfDocumentClass() alloc] initWithData:rawData()]); setPDFDocument(document); updatePageAndDeviceScaleFactors(); [m_pdfLayerController setFrameSize:size()]; m_pdfLayerController.get().document = document.get(); if (handlesPageScaleFactor()) pluginView()->setPageScaleFactor([m_pdfLayerController contentScaleFactor], IntPoint()); notifyScrollPositionChanged(IntPoint([m_pdfLayerController scrollPosition])); calculateSizes(); updateScrollbars(); runScriptsInPDFDocument(); if ([document isLocked]) createPasswordEntryForm(); } void PDFPlugin::streamDidReceiveResponse(uint64_t streamID, const URL&, uint32_t, uint32_t, const String& mimeType, const String&, const String& suggestedFilename) { ASSERT_UNUSED(streamID, streamID == pdfDocumentRequestID); m_suggestedFilename = suggestedFilename; if (equalIgnoringCase(mimeType, postScriptMIMEType)) m_isPostScript = true; } void PDFPlugin::streamDidReceiveData(uint64_t streamID, const char* bytes, int length) { ASSERT_UNUSED(streamID, streamID == pdfDocumentRequestID); if (!m_data) m_data = adoptCF(CFDataCreateMutable(0, 0)); CFDataAppendBytes(m_data.get(), reinterpret_cast<const UInt8*>(bytes), length); } void PDFPlugin::streamDidFinishLoading(uint64_t streamID) { ASSERT_UNUSED(streamID, streamID == pdfDocumentRequestID); convertPostScriptDataIfNeeded(); pdfDocumentDidLoad(); } void PDFPlugin::streamDidFail(uint64_t streamID, bool wasCancelled) { ASSERT_UNUSED(streamID, streamID == pdfDocumentRequestID); m_data.clear(); } void PDFPlugin::manualStreamDidReceiveResponse(const URL& responseURL, uint32_t streamLength, uint32_t lastModifiedTime, const String& mimeType, const String& headers, const String& suggestedFilename) { m_suggestedFilename = suggestedFilename; if (equalIgnoringCase(mimeType, postScriptMIMEType)) m_isPostScript = true; } void PDFPlugin::manualStreamDidReceiveData(const char* bytes, int length) { if (!m_data) m_data = adoptCF(CFDataCreateMutable(0, 0)); CFDataAppendBytes(m_data.get(), reinterpret_cast<const UInt8*>(bytes), length); } void PDFPlugin::manualStreamDidFinishLoading() { convertPostScriptDataIfNeeded(); pdfDocumentDidLoad(); } void PDFPlugin::manualStreamDidFail(bool) { m_data.clear(); } void PDFPlugin::runScriptsInPDFDocument() { Vector<RetainPtr<CFStringRef>> scripts; getAllScriptsInPDFDocument([m_pdfDocument documentRef], scripts); size_t scriptCount = scripts.size(); if (!scriptCount) return; JSGlobalContextRef ctx = JSGlobalContextCreate(0); JSObjectRef jsPDFDoc = makeJSPDFDoc(ctx); for (size_t i = 0; i < scriptCount; ++i) { JSStringRef script = JSStringCreateWithCFString(scripts[i].get()); JSEvaluateScript(ctx, script, jsPDFDoc, 0, 0, 0); JSStringRelease(script); } JSGlobalContextRelease(ctx); } void PDFPlugin::createPasswordEntryForm() { m_passwordField = PDFPluginPasswordField::create(m_pdfLayerController.get(), this); m_passwordField->attach(m_annotationContainer.get()); } void PDFPlugin::attemptToUnlockPDF(const String& password) { [m_pdfLayerController attemptToUnlockWithPassword:password]; if (![pdfDocument() isLocked]) { m_passwordField = nullptr; calculateSizes(); updateScrollbars(); } } void PDFPlugin::updatePageAndDeviceScaleFactors() { double newScaleFactor = controller()->contentsScaleFactor(); if (!handlesPageScaleFactor()) newScaleFactor *= webFrame()->page()->pageScaleFactor(); if (newScaleFactor != [m_pdfLayerController deviceScaleFactor]) [m_pdfLayerController setDeviceScaleFactor:newScaleFactor]; } void PDFPlugin::contentsScaleFactorChanged(float) { updatePageAndDeviceScaleFactors(); } void PDFPlugin::computePageBoxes() { size_t pageCount = CGPDFDocumentGetNumberOfPages([m_pdfDocument documentRef]); for (size_t i = 0; i < pageCount; ++i) { CGPDFPageRef pdfPage = CGPDFDocumentGetPage([m_pdfDocument documentRef], i + 1); ASSERT(pdfPage); CGRect box = CGPDFPageGetBoxRect(pdfPage, kCGPDFCropBox); if (CGRectIsEmpty(box)) box = CGPDFPageGetBoxRect(pdfPage, kCGPDFMediaBox); m_pageBoxes.append(IntRect(box)); } } void PDFPlugin::calculateSizes() { if ([pdfDocument() isLocked]) { setPDFDocumentSize(IntSize(0, 0)); return; } // FIXME: This should come straight from PDFKit. computePageBoxes(); setPDFDocumentSize(IntSize([m_pdfLayerController contentSizeRespectingZoom])); } bool PDFPlugin::initialize(const Parameters& parameters) { m_sourceURL = parameters.url; if (!parameters.shouldUseManualLoader && !parameters.url.isEmpty()) controller()->loadURL(pdfDocumentRequestID, "GET", parameters.url.string(), String(), HTTPHeaderMap(), Vector<uint8_t>(), false); controller()->didInitializePlugin(); return true; } void PDFPlugin::destroy() { m_pdfLayerController.get().delegate = 0; if (webFrame()) { if (FrameView* frameView = webFrame()->coreFrame()->view()) frameView->removeScrollableArea(this); } m_activeAnnotation = nullptr; m_annotationContainer = nullptr; destroyScrollbar(HorizontalScrollbar); destroyScrollbar(VerticalScrollbar); [m_scrollCornerLayer removeFromSuperlayer]; [m_contentLayer removeFromSuperlayer]; } void PDFPlugin::updateControlTints(GraphicsContext* graphicsContext) { ASSERT(graphicsContext->updatingControlTints()); if (m_horizontalScrollbar) m_horizontalScrollbar->invalidate(); if (m_verticalScrollbar) m_verticalScrollbar->invalidate(); invalidateScrollCorner(scrollCornerRect()); } void PDFPlugin::paintControlForLayerInContext(CALayer *layer, CGContextRef context) { GraphicsContext graphicsContext(context); GraphicsContextStateSaver stateSaver(graphicsContext); graphicsContext.setIsCALayerContext(true); if (layer == m_scrollCornerLayer) { IntRect scrollCornerRect = this->scrollCornerRect(); graphicsContext.translate(-scrollCornerRect.x(), -scrollCornerRect.y()); ScrollbarTheme::theme()->paintScrollCorner(0, &graphicsContext, scrollCornerRect); return; } Scrollbar* scrollbar = nullptr; if (layer == m_verticalScrollbarLayer) scrollbar = verticalScrollbar(); else if (layer == m_horizontalScrollbarLayer) scrollbar = horizontalScrollbar(); if (!scrollbar) return; graphicsContext.translate(-scrollbar->x(), -scrollbar->y()); scrollbar->paint(&graphicsContext, scrollbar->frameRect()); } PassRefPtr<ShareableBitmap> PDFPlugin::snapshot() { if (size().isEmpty()) return nullptr; float contentsScaleFactor = controller()->contentsScaleFactor(); IntSize backingStoreSize = size(); backingStoreSize.scale(contentsScaleFactor); RefPtr<ShareableBitmap> bitmap = ShareableBitmap::createShareable(backingStoreSize, ShareableBitmap::SupportsAlpha); auto context = bitmap->createGraphicsContext(); context->scale(FloatSize(contentsScaleFactor, -contentsScaleFactor)); context->translate(-m_scrollOffset.width(), -m_pdfDocumentSize.height() + m_scrollOffset.height()); [m_pdfLayerController snapshotInContext:context->platformContext()]; return bitmap.release(); } PlatformLayer* PDFPlugin::pluginLayer() { return m_containerLayer.get(); } IntPoint PDFPlugin::convertFromPluginToPDFView(const IntPoint& point) const { return IntPoint(point.x(), size().height() - point.y()); } IntPoint PDFPlugin::convertFromRootViewToPlugin(const IntPoint& point) const { return m_rootViewToPluginTransform.mapPoint(point); } IntPoint PDFPlugin::convertFromPDFViewToRootView(const IntPoint& point) const { IntPoint pointInPluginCoordinates(point.x(), size().height() - point.y()); return m_rootViewToPluginTransform.inverse().mapPoint(pointInPluginCoordinates); } FloatRect PDFPlugin::convertFromPDFViewToScreen(const FloatRect& rect) const { FrameView* frameView = webFrame()->coreFrame()->view(); if (!frameView) return FloatRect(); FloatPoint originInPluginCoordinates(rect.x(), size().height() - rect.y() - rect.height()); FloatRect rectInRootViewCoordinates = m_rootViewToPluginTransform.inverse().mapRect(FloatRect(originInPluginCoordinates, rect.size())); return frameView->contentsToScreen(enclosingIntRect(rectInRootViewCoordinates)); } IntRect PDFPlugin::boundsOnScreen() const { FrameView* frameView = webFrame()->coreFrame()->view(); if (!frameView) return IntRect(); FloatRect bounds = FloatRect(FloatPoint(), size()); FloatRect rectInRootViewCoordinates = m_rootViewToPluginTransform.inverse().mapRect(bounds); return frameView->contentsToScreen(enclosingIntRect(rectInRootViewCoordinates)); } void PDFPlugin::geometryDidChange(const IntSize& pluginSize, const IntRect&, const AffineTransform& pluginToRootViewTransform) { if (size() == pluginSize && pluginView()->pageScaleFactor() == [m_pdfLayerController contentScaleFactor]) return; m_size = pluginSize; m_rootViewToPluginTransform = pluginToRootViewTransform.inverse(); [m_pdfLayerController setFrameSize:pluginSize]; [CATransaction begin]; [CATransaction setDisableActions:YES]; CATransform3D transform = CATransform3DMakeScale(1, -1, 1); transform = CATransform3DTranslate(transform, 0, -pluginSize.height(), 0); if (handlesPageScaleFactor()) { CGFloat magnification = pluginView()->pageScaleFactor() - [m_pdfLayerController contentScaleFactor]; // FIXME: Instead of m_lastMousePositionInPluginCoordinates, we should use the zoom origin from PluginView::setPageScaleFactor. if (magnification) [m_pdfLayerController magnifyWithMagnification:magnification atPoint:convertFromPluginToPDFView(m_lastMousePositionInPluginCoordinates) immediately:NO]; } else { // If we don't handle page scale ourselves, we need to respect our parent page's // scale, which may have changed. updatePageAndDeviceScaleFactors(); } calculateSizes(); updateScrollbars(); if (m_activeAnnotation) m_activeAnnotation->updateGeometry(); [m_contentLayer setSublayerTransform:transform]; [CATransaction commit]; } void PDFPlugin::frameDidFinishLoading(uint64_t) { ASSERT_NOT_REACHED(); } void PDFPlugin::frameDidFail(uint64_t, bool) { ASSERT_NOT_REACHED(); } void PDFPlugin::didEvaluateJavaScript(uint64_t, const WTF::String&) { ASSERT_NOT_REACHED(); } static NSUInteger modifierFlagsFromWebEvent(const WebEvent& event) { return (event.shiftKey() ? NSShiftKeyMask : 0) | (event.controlKey() ? NSControlKeyMask : 0) | (event.altKey() ? NSAlternateKeyMask : 0) | (event.metaKey() ? NSCommandKeyMask : 0); } static bool getEventTypeFromWebEvent(const WebEvent& event, NSEventType& eventType) { switch (event.type()) { case WebEvent::KeyDown: eventType = NSKeyDown; return true; case WebEvent::KeyUp: eventType = NSKeyUp; return true; case WebEvent::MouseDown: switch (static_cast<const WebMouseEvent&>(event).button()) { case WebMouseEvent::LeftButton: eventType = NSLeftMouseDown; return true; case WebMouseEvent::RightButton: eventType = NSRightMouseDown; return true; default: return false; } case WebEvent::MouseUp: switch (static_cast<const WebMouseEvent&>(event).button()) { case WebMouseEvent::LeftButton: eventType = NSLeftMouseUp; return true; case WebMouseEvent::RightButton: eventType = NSRightMouseUp; return true; default: return false; } case WebEvent::MouseMove: switch (static_cast<const WebMouseEvent&>(event).button()) { case WebMouseEvent::LeftButton: eventType = NSLeftMouseDragged; return true; case WebMouseEvent::RightButton: eventType = NSRightMouseDragged; return true; case WebMouseEvent::NoButton: eventType = NSMouseMoved; return true; default: return false; } default: return false; } } NSEvent *PDFPlugin::nsEventForWebMouseEvent(const WebMouseEvent& event) { m_lastMousePositionInPluginCoordinates = convertFromRootViewToPlugin(event.position()); IntPoint positionInPDFViewCoordinates(convertFromPluginToPDFView(m_lastMousePositionInPluginCoordinates)); NSEventType eventType; if (!getEventTypeFromWebEvent(event, eventType)) return 0; NSUInteger modifierFlags = modifierFlagsFromWebEvent(event); return [NSEvent mouseEventWithType:eventType location:positionInPDFViewCoordinates modifierFlags:modifierFlags timestamp:0 windowNumber:0 context:nil eventNumber:0 clickCount:event.clickCount() pressure:0]; } void PDFPlugin::updateCursor(const WebMouseEvent& event, UpdateCursorMode mode) { HitTestResult hitTestResult = None; PDFSelection *selectionUnderMouse = [m_pdfLayerController getSelectionForWordAtPoint:convertFromPluginToPDFView(event.position())]; if (selectionUnderMouse && [[selectionUnderMouse string] length]) hitTestResult = Text; if (hitTestResult == m_lastHitTestResult && mode == UpdateIfNeeded) return; webFrame()->page()->send(Messages::WebPageProxy::SetCursor(hitTestResult == Text ? iBeamCursor() : pointerCursor())); m_lastHitTestResult = hitTestResult; } bool PDFPlugin::handleMouseEvent(const WebMouseEvent& event) { PlatformMouseEvent platformEvent = platform(event); IntPoint mousePosition = convertFromRootViewToPlugin(event.position()); m_lastMouseEvent = event; RefPtr<Scrollbar> targetScrollbar; RefPtr<Scrollbar> targetScrollbarForLastMousePosition; if (m_verticalScrollbarLayer) { IntRect verticalScrollbarFrame(m_verticalScrollbarLayer.get().frame); if (verticalScrollbarFrame.contains(mousePosition)) targetScrollbar = verticalScrollbar(); if (verticalScrollbarFrame.contains(m_lastMousePositionInPluginCoordinates)) targetScrollbarForLastMousePosition = verticalScrollbar(); } if (m_horizontalScrollbarLayer) { IntRect horizontalScrollbarFrame(m_horizontalScrollbarLayer.get().frame); if (horizontalScrollbarFrame.contains(mousePosition)) targetScrollbar = horizontalScrollbar(); if (horizontalScrollbarFrame.contains(m_lastMousePositionInPluginCoordinates)) targetScrollbarForLastMousePosition = horizontalScrollbar(); } if (m_scrollCornerLayer && IntRect(m_scrollCornerLayer.get().frame).contains(mousePosition)) return false; if ([pdfDocument() isLocked]) return false; // Right-clicks and Control-clicks always call handleContextMenuEvent as well. if (event.button() == WebMouseEvent::RightButton || (event.button() == WebMouseEvent::LeftButton && event.controlKey())) return true; NSEvent *nsEvent = nsEventForWebMouseEvent(event); switch (event.type()) { case WebEvent::MouseMove: mouseMovedInContentArea(); updateCursor(event); if (targetScrollbar) { if (!targetScrollbarForLastMousePosition) { targetScrollbar->mouseEntered(); return true; } return targetScrollbar->mouseMoved(platformEvent); } if (!targetScrollbar && targetScrollbarForLastMousePosition) targetScrollbarForLastMousePosition->mouseExited(); switch (event.button()) { case WebMouseEvent::LeftButton: [m_pdfLayerController mouseDragged:nsEvent]; return true; case WebMouseEvent::RightButton: case WebMouseEvent::MiddleButton: return false; case WebMouseEvent::NoButton: [m_pdfLayerController mouseMoved:nsEvent]; return true; } case WebEvent::MouseDown: switch (event.button()) { case WebMouseEvent::LeftButton: if (targetScrollbar) return targetScrollbar->mouseDown(platformEvent); [m_pdfLayerController mouseDown:nsEvent]; return true; case WebMouseEvent::RightButton: [m_pdfLayerController rightMouseDown:nsEvent]; return true; case WebMouseEvent::MiddleButton: case WebMouseEvent::NoButton: return false; } case WebEvent::MouseUp: switch (event.button()) { case WebMouseEvent::LeftButton: if (targetScrollbar) return targetScrollbar->mouseUp(platformEvent); [m_pdfLayerController mouseUp:nsEvent]; return true; case WebMouseEvent::RightButton: case WebMouseEvent::MiddleButton: case WebMouseEvent::NoButton: return false; } default: break; } return false; } bool PDFPlugin::handleMouseEnterEvent(const WebMouseEvent& event) { mouseEnteredContentArea(); updateCursor(event, ForceUpdate); return false; } bool PDFPlugin::handleMouseLeaveEvent(const WebMouseEvent&) { mouseExitedContentArea(); return false; } bool PDFPlugin::showContextMenuAtPoint(const IntPoint& point) { FrameView* frameView = webFrame()->coreFrame()->view(); IntPoint contentsPoint = frameView->contentsToRootView(point); WebMouseEvent event(WebEvent::MouseDown, WebMouseEvent::RightButton, contentsPoint, contentsPoint, 0, 0, 0, 1, static_cast<WebEvent::Modifiers>(0), monotonicallyIncreasingTime(), WebCore::ForceAtClick); return handleContextMenuEvent(event); } bool PDFPlugin::handleContextMenuEvent(const WebMouseEvent& event) { FrameView* frameView = webFrame()->coreFrame()->view(); IntPoint point = frameView->contentsToScreen(IntRect(frameView->windowToContents(event.position()), IntSize())).location(); if (NSMenu *nsMenu = [m_pdfLayerController menuForEvent:nsEventForWebMouseEvent(event)]) { WKPopupContextMenu(nsMenu, point); return true; } return false; } bool PDFPlugin::handleKeyboardEvent(const WebKeyboardEvent& event) { NSEventType eventType; if (!getEventTypeFromWebEvent(event, eventType)) return false; NSUInteger modifierFlags = modifierFlagsFromWebEvent(event); NSEvent *fakeEvent = [NSEvent keyEventWithType:eventType location:NSZeroPoint modifierFlags:modifierFlags timestamp:0 windowNumber:0 context:0 characters:event.text() charactersIgnoringModifiers:event.unmodifiedText() isARepeat:event.isAutoRepeat() keyCode:event.nativeVirtualKeyCode()]; switch (event.type()) { case WebEvent::KeyDown: return [m_pdfLayerController keyDown:fakeEvent]; default: return false; } return false; } bool PDFPlugin::handleEditingCommand(const String& commandName, const String& argument) { if (commandName == "copy") [m_pdfLayerController copySelection]; else if (commandName == "selectAll") [m_pdfLayerController selectAll]; else if (commandName == "takeFindStringFromSelection") { NSString *string = [m_pdfLayerController currentSelection].string; if (string.length) writeItemsToPasteboard(NSFindPboard, @[ [string dataUsingEncoding:NSUTF8StringEncoding] ], @[ NSPasteboardTypeString ]); } return true; } bool PDFPlugin::isEditingCommandEnabled(const String& commandName) { if (commandName == "copy" || commandName == "takeFindStringFromSelection") return [m_pdfLayerController currentSelection]; if (commandName == "selectAll") return true; return false; } void PDFPlugin::setScrollOffset(const IntPoint& offset) { m_scrollOffset = IntSize(offset.x(), offset.y()); [CATransaction begin]; [m_pdfLayerController setScrollPosition:offset]; if (m_activeAnnotation) m_activeAnnotation->updateGeometry(); [CATransaction commit]; } void PDFPlugin::invalidateScrollbarRect(Scrollbar* scrollbar, const IntRect& rect) { if (scrollbar == horizontalScrollbar()) [m_horizontalScrollbarLayer setNeedsDisplay]; else if (scrollbar == verticalScrollbar()) [m_verticalScrollbarLayer setNeedsDisplay]; } void PDFPlugin::invalidateScrollCornerRect(const IntRect& rect) { [m_scrollCornerLayer setNeedsDisplay]; } bool PDFPlugin::isFullFramePlugin() { // <object> or <embed> plugins will appear to be in their parent frame, so we have to // check whether our frame's widget is exactly our PluginView. Document* document = webFrame()->coreFrame()->document(); return document->isPluginDocument() && static_cast<PluginDocument*>(document)->pluginWidget() == pluginView(); } bool PDFPlugin::handlesPageScaleFactor() { return webFrame()->isMainFrame() && isFullFramePlugin(); } void PDFPlugin::clickedLink(NSURL *url) { URL coreURL = url; if (protocolIsJavaScript(coreURL)) return; Frame* frame = webFrame()->coreFrame(); RefPtr<Event> coreEvent; if (m_lastMouseEvent.type() != WebEvent::NoType) coreEvent = MouseEvent::create(eventNames().clickEvent, frame->document()->defaultView(), platform(m_lastMouseEvent), 0, 0); frame->loader().urlSelected(coreURL, emptyString(), coreEvent.get(), LockHistory::No, LockBackForwardList::No, MaybeSendReferrer, ShouldOpenExternalURLsPolicy::ShouldAllow); } void PDFPlugin::setActiveAnnotation(PDFAnnotation *annotation) { if (!supportsForms()) return; if (m_activeAnnotation) m_activeAnnotation->commit(); if (annotation) { if ([annotation isKindOfClass:pdfAnnotationTextWidgetClass()] && static_cast<PDFAnnotationTextWidget *>(annotation).isReadOnly) { m_activeAnnotation = nullptr; return; } m_activeAnnotation = PDFPluginAnnotation::create(annotation, m_pdfLayerController.get(), this); m_activeAnnotation->attach(m_annotationContainer.get()); } else m_activeAnnotation = nullptr; } bool PDFPlugin::supportsForms() { // FIXME: We support forms for full-main-frame and <iframe> PDFs, but not <embed> or <object>, because those cases do not have their own Document into which to inject form elements. return isFullFramePlugin(); } void PDFPlugin::notifyContentScaleFactorChanged(CGFloat scaleFactor) { if (handlesPageScaleFactor()) pluginView()->setPageScaleFactor(scaleFactor, IntPoint()); calculateSizes(); updateScrollbars(); } void PDFPlugin::notifyDisplayModeChanged(int) { calculateSizes(); updateScrollbars(); } PassRefPtr<SharedBuffer> PDFPlugin::liveResourceData() const { NSData *pdfData = liveData(); if (!pdfData) return 0; return SharedBuffer::wrapNSData(pdfData); } void PDFPlugin::saveToPDF() { // FIXME: We should probably notify the user that they can't save before the document is finished loading. // PDFViewController does an NSBeep(), but that seems insufficient. if (!pdfDocument()) return; NSData *data = liveData(); webFrame()->page()->savePDFToFileInDownloadsFolder(m_suggestedFilename, webFrame()->url(), static_cast<const unsigned char *>([data bytes]), [data length]); } void PDFPlugin::openWithNativeApplication() { if (!m_temporaryPDFUUID) { // FIXME: We should probably notify the user that they can't save before the document is finished loading. // PDFViewController does an NSBeep(), but that seems insufficient. if (!pdfDocument()) return; NSData *data = liveData(); m_temporaryPDFUUID = WebCore::createCanonicalUUIDString(); ASSERT(m_temporaryPDFUUID); webFrame()->page()->savePDFToTemporaryFolderAndOpenWithNativeApplication(m_suggestedFilename, webFrame()->url(), static_cast<const unsigned char *>([data bytes]), [data length], m_temporaryPDFUUID); return; } webFrame()->page()->send(Messages::WebPageProxy::OpenPDFFromTemporaryFolderWithNativeApplication(m_temporaryPDFUUID)); } void PDFPlugin::writeItemsToPasteboard(NSString *pasteboardName, NSArray *items, NSArray *types) { Vector<String> pasteboardTypes; for (NSString *type in types) pasteboardTypes.append(type); uint64_t newChangeCount; auto& webProcess = WebProcess::singleton(); webProcess.parentProcessConnection()->sendSync(Messages::WebPasteboardProxy::SetPasteboardTypes(pasteboardName, pasteboardTypes), Messages::WebPasteboardProxy::SetPasteboardTypes::Reply(newChangeCount), 0); for (NSUInteger i = 0, count = items.count; i < count; ++i) { NSString *type = [types objectAtIndex:i]; NSData *data = [items objectAtIndex:i]; // We don't expect the data for any items to be empty, but aren't completely sure. // Avoid crashing in the SharedMemory constructor in release builds if we're wrong. ASSERT(data.length); if (!data.length) continue; if ([type isEqualToString:NSStringPboardType] || [type isEqualToString:NSPasteboardTypeString]) { RetainPtr<NSString> plainTextString = adoptNS([[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]); webProcess.parentProcessConnection()->sendSync(Messages::WebPasteboardProxy::SetPasteboardStringForType(pasteboardName, type, plainTextString.get()), Messages::WebPasteboardProxy::SetPasteboardStringForType::Reply(newChangeCount), 0); } else { RefPtr<SharedBuffer> buffer = SharedBuffer::wrapNSData(data); if (!buffer) continue; SharedMemory::Handle handle; RefPtr<SharedMemory> sharedMemory = SharedMemory::allocate(buffer->size()); memcpy(sharedMemory->data(), buffer->data(), buffer->size()); sharedMemory->createHandle(handle, SharedMemory::Protection::ReadOnly); webProcess.parentProcessConnection()->sendSync(Messages::WebPasteboardProxy::SetPasteboardBufferForType(pasteboardName, type, handle, buffer->size()), Messages::WebPasteboardProxy::SetPasteboardBufferForType::Reply(newChangeCount), 0); } } } void PDFPlugin::showDefinitionForAttributedString(NSAttributedString *string, CGPoint point) { DictionaryPopupInfo dictionaryPopupInfo; dictionaryPopupInfo.origin = convertFromPDFViewToRootView(IntPoint(point)); dictionaryPopupInfo.attributedString.string = string; webFrame()->page()->send(Messages::WebPageProxy::DidPerformDictionaryLookup(dictionaryPopupInfo)); } unsigned PDFPlugin::countFindMatches(const String& target, WebCore::FindOptions options, unsigned maxMatchCount) { if (!target.length()) return 0; int nsOptions = (options & FindOptionsCaseInsensitive) ? NSCaseInsensitiveSearch : 0; return [[pdfDocument() findString:target withOptions:nsOptions] count]; } PDFSelection *PDFPlugin::nextMatchForString(const String& target, BOOL searchForward, BOOL caseSensitive, BOOL wrapSearch, PDFSelection *initialSelection, BOOL startInSelection) { if (!target.length()) return nil; NSStringCompareOptions options = 0; if (!searchForward) options |= NSBackwardsSearch; if (!caseSensitive) options |= NSCaseInsensitiveSearch; PDFDocument *document = pdfDocument().get(); PDFSelection *selectionForInitialSearch = [initialSelection copy]; if (startInSelection) { // Initially we want to include the selected text in the search. So we must modify the starting search // selection to fit PDFDocument's search requirements: selection must have a length >= 1, begin before // the current selection (if searching forwards) or after (if searching backwards). int initialSelectionLength = [[initialSelection string] length]; if (searchForward) { [selectionForInitialSearch extendSelectionAtStart:1]; [selectionForInitialSearch extendSelectionAtEnd:-initialSelectionLength]; } else { [selectionForInitialSearch extendSelectionAtEnd:1]; [selectionForInitialSearch extendSelectionAtStart:-initialSelectionLength]; } } PDFSelection *foundSelection = [document findString:target fromSelection:selectionForInitialSearch withOptions:options]; [selectionForInitialSearch release]; // If we first searched in the selection, and we found the selection, search again from just past the selection. if (startInSelection && [foundSelection isEqual:initialSelection]) foundSelection = [document findString:target fromSelection:initialSelection withOptions:options]; if (!foundSelection && wrapSearch) foundSelection = [document findString:target fromSelection:nil withOptions:options]; return foundSelection; } bool PDFPlugin::findString(const String& target, WebCore::FindOptions options, unsigned maxMatchCount) { BOOL searchForward = !(options & FindOptionsBackwards); BOOL caseSensitive = !(options & FindOptionsCaseInsensitive); BOOL wrapSearch = options & FindOptionsWrapAround; unsigned matchCount; if (!maxMatchCount) { // If the max was zero, any result means we exceeded the max. We can skip computing the actual count. matchCount = static_cast<unsigned>(kWKMoreThanMaximumMatchCount); } else { matchCount = countFindMatches(target, options, maxMatchCount); if (matchCount > maxMatchCount) matchCount = static_cast<unsigned>(kWKMoreThanMaximumMatchCount); } if (target.isEmpty()) { PDFSelection* searchSelection = [m_pdfLayerController searchSelection]; [m_pdfLayerController findString:target caseSensitive:caseSensitive highlightMatches:YES]; [m_pdfLayerController setSearchSelection:searchSelection]; m_lastFoundString = emptyString(); return false; } if (m_lastFoundString == target) { PDFSelection *selection = nextMatchForString(target, searchForward, caseSensitive, wrapSearch, [m_pdfLayerController searchSelection], NO); if (!selection) return false; [m_pdfLayerController setSearchSelection:selection]; [m_pdfLayerController gotoSelection:selection]; } else { [m_pdfLayerController findString:target caseSensitive:caseSensitive highlightMatches:YES]; m_lastFoundString = target; } return matchCount > 0; } bool PDFPlugin::performDictionaryLookupAtLocation(const WebCore::FloatPoint& point) { IntPoint localPoint = convertFromRootViewToPlugin(roundedIntPoint(point)); PDFSelection* lookupSelection = [m_pdfLayerController getSelectionForWordAtPoint:convertFromPluginToPDFView(localPoint)]; if ([[lookupSelection string] length]) [m_pdfLayerController searchInDictionaryWithSelection:lookupSelection]; return true; } void PDFPlugin::focusNextAnnotation() { [m_pdfLayerController activateNextAnnotation:false]; } void PDFPlugin::focusPreviousAnnotation() { [m_pdfLayerController activateNextAnnotation:true]; } void PDFPlugin::notifySelectionChanged(PDFSelection *) { webFrame()->page()->didChangeSelection(); } String PDFPlugin::getSelectionString() const { return [[m_pdfLayerController currentSelection] string]; } String PDFPlugin::getSelectionForWordAtPoint(const WebCore::FloatPoint& point) const { IntPoint pointInView = convertFromPluginToPDFView(convertFromRootViewToPlugin(roundedIntPoint(point))); PDFSelection *selectionForWord = [m_pdfLayerController getSelectionForWordAtPoint:pointInView]; [m_pdfLayerController setCurrentSelection:selectionForWord]; return [selectionForWord string]; } bool PDFPlugin::existingSelectionContainsPoint(const WebCore::FloatPoint& locationInViewCoordinates) const { PDFSelection *currentSelection = [m_pdfLayerController currentSelection]; if (!currentSelection) return false; IntPoint pointInPDFView = convertFromPluginToPDFView(convertFromRootViewToPlugin(roundedIntPoint(locationInViewCoordinates))); PDFSelection *selectionForWord = [m_pdfLayerController getSelectionForWordAtPoint:pointInPDFView]; NSUInteger currentPageIndex = [m_pdfLayerController currentPageIndex]; NSArray *selectionRects = [m_pdfLayerController rectsForSelectionInLayoutSpace:currentSelection]; if (!selectionRects || !selectionRects.count) return false; if (currentPageIndex >= selectionRects.count) currentPageIndex = selectionRects.count - 1; NSArray *wordSelectionRects = [m_pdfLayerController rectsForSelectionInLayoutSpace:selectionForWord]; if (!wordSelectionRects || !wordSelectionRects.count) return false; NSValue *selectionBounds = [selectionRects objectAtIndex:currentPageIndex]; NSValue *wordSelectionBounds = [wordSelectionRects objectAtIndex:0]; NSRect selectionBoundsRect = selectionBounds.rectValue; NSRect wordSelectionBoundsRect = wordSelectionBounds.rectValue; return NSIntersectsRect(wordSelectionBoundsRect, selectionBoundsRect); } static NSPoint pointInLayoutSpaceForPointInWindowSpace(PDFLayerController* pdfLayerController, NSPoint pointInView) { CGPoint point = NSPointToCGPoint(pointInView); CGPoint scrollOffset = [pdfLayerController scrollPosition]; CGFloat scaleFactor = [pdfLayerController contentScaleFactor]; scrollOffset.y = [pdfLayerController contentSizeRespectingZoom].height - NSRectToCGRect([pdfLayerController frame]).size.height - scrollOffset.y; CGPoint newPoint = CGPointMake(scrollOffset.x + point.x, scrollOffset.y + point.y); newPoint.x /= scaleFactor; newPoint.y /= scaleFactor; return NSPointFromCGPoint(newPoint); } String PDFPlugin::lookupTextAtLocation(const WebCore::FloatPoint& locationInViewCoordinates, WebHitTestResult::Data& data, PDFSelection **selectionPtr, NSDictionary **options) const { PDFSelection*& selection = *selectionPtr; selection = [m_pdfLayerController currentSelection]; if (existingSelectionContainsPoint(locationInViewCoordinates)) return selection.string; IntPoint pointInPDFView = convertFromPluginToPDFView(convertFromRootViewToPlugin(roundedIntPoint(locationInViewCoordinates))); selection = [m_pdfLayerController getSelectionForWordAtPoint:pointInPDFView]; if (!selection) return @""; NSPoint pointInLayoutSpace = pointInLayoutSpaceForPointInWindowSpace(m_pdfLayerController.get(), pointInPDFView); PDFPage *currentPage = [[m_pdfLayerController layout] pageNearestPoint:pointInLayoutSpace currentPage:[m_pdfLayerController currentPage]]; NSPoint pointInPageSpace = [[m_pdfLayerController layout] convertPoint:pointInLayoutSpace toPage:currentPage forScaleFactor:1.0]; for (PDFAnnotation *annotation in currentPage.annotations) { if (![annotation isKindOfClass:pdfAnnotationLinkClass()]) continue; NSRect bounds = annotation.bounds; if (!NSPointInRect(pointInPageSpace, bounds)) continue; PDFAnnotationLink *linkAnnotation = (PDFAnnotationLink *)annotation; NSURL *url = linkAnnotation.URL; if (!url) continue; data.absoluteLinkURL = url.absoluteString; data.linkLabel = selection.string; return selection.string; } NSString *lookupText = dictionaryLookupForPDFSelection(selection, options); if (!lookupText || !lookupText.length) return @""; [m_pdfLayerController setCurrentSelection:selection]; return lookupText; } static NSRect rectInViewSpaceForRectInLayoutSpace(PDFLayerController* pdfLayerController, NSRect layoutSpaceRect) { CGRect newRect = NSRectToCGRect(layoutSpaceRect); CGFloat scaleFactor = pdfLayerController.contentScaleFactor; CGPoint scrollOffset = pdfLayerController.scrollPosition; scrollOffset.y = pdfLayerController.contentSizeRespectingZoom.height - NSRectToCGRect(pdfLayerController.frame).size.height - scrollOffset.y; newRect.origin.x *= scaleFactor; newRect.origin.y *= scaleFactor; newRect.size.width *= scaleFactor; newRect.size.height *= scaleFactor; newRect.origin.x -= scrollOffset.x; newRect.origin.y -= scrollOffset.y; return NSRectFromCGRect(newRect); } WebCore::FloatRect PDFPlugin::viewRectForSelection(PDFSelection *selection) const { PDFPage *currentPage = nil; NSArray* pages = selection.pages; if (pages.count) currentPage = (PDFPage *)[pages objectAtIndex:0]; if (!currentPage) currentPage = [m_pdfLayerController currentPage]; NSRect rectInPageSpace = [selection boundsForPage:currentPage]; NSRect rectInLayoutSpace = [[m_pdfLayerController layout] convertRect:rectInPageSpace fromPage:currentPage forScaleFactor:1.0]; NSRect rectInView = rectInViewSpaceForRectInLayoutSpace(m_pdfLayerController.get(), rectInLayoutSpace); rectInView.origin = convertFromPDFViewToRootView(IntPoint(rectInView.origin)); return WebCore::FloatRect(rectInView); } CGFloat PDFPlugin::scaleFactor() const { return [m_pdfLayerController contentScaleFactor]; } void PDFPlugin::performWebSearch(NSString *string) { webFrame()->page()->send(Messages::WebPageProxy::SearchTheWeb(string)); } void PDFPlugin::performSpotlightSearch(NSString *string) { webFrame()->page()->send(Messages::WebPageProxy::SearchWithSpotlight(string)); } bool PDFPlugin::handleWheelEvent(const WebWheelEvent& event) { PDFDisplayMode displayMode = [m_pdfLayerController displayMode]; if (displayMode == kPDFDisplaySinglePageContinuous || displayMode == kPDFDisplayTwoUpContinuous) return ScrollableArea::handleWheelEvent(platform(event)); NSUInteger currentPageIndex = [m_pdfLayerController currentPageIndex]; bool inFirstPage = !currentPageIndex; bool inLastPage = [m_pdfLayerController lastPageIndex] == currentPageIndex; bool atScrollTop = !scrollPosition().y(); bool atScrollBottom = scrollPosition().y() == maximumScrollPosition().y(); bool inMomentumScroll = event.momentumPhase() != WebWheelEvent::PhaseNone; int scrollMagnitudeThresholdForPageFlip = defaultScrollMagnitudeThresholdForPageFlip; // Imprecise input devices should have a lower threshold so that "clicky" scroll wheels can flip pages. if (!event.hasPreciseScrollingDeltas()) scrollMagnitudeThresholdForPageFlip = 0; if (atScrollBottom && !inLastPage && event.delta().height() < 0) { if (event.delta().height() <= -scrollMagnitudeThresholdForPageFlip && !inMomentumScroll) [m_pdfLayerController gotoNextPage]; return true; } if (atScrollTop && !inFirstPage && event.delta().height() > 0) { if (event.delta().height() >= scrollMagnitudeThresholdForPageFlip && !inMomentumScroll) { [CATransaction begin]; [m_pdfLayerController gotoPreviousPage]; scrollToOffsetWithoutAnimation(maximumScrollPosition()); [CATransaction commit]; } return true; } return ScrollableArea::handleWheelEvent(platform(event)); } NSData *PDFPlugin::liveData() const { if (m_activeAnnotation) m_activeAnnotation->commit(); // Save data straight from the resource instead of PDFKit if the document is // untouched by the user, so that PDFs which PDFKit can't display will still be downloadable. if (m_pdfDocumentWasMutated) return [m_pdfDocument dataRepresentation]; return rawData(); } NSObject *PDFPlugin::accessibilityObject() const { return m_accessibilityObject.get(); } } // namespace WebKit #endif // ENABLE(PDFKIT_PLUGIN)