diff options
Diffstat (limited to 'chromium/third_party/WebKit/Source/web/WebFrameImpl.cpp')
| -rw-r--r-- | chromium/third_party/WebKit/Source/web/WebFrameImpl.cpp | 2533 |
1 files changed, 0 insertions, 2533 deletions
diff --git a/chromium/third_party/WebKit/Source/web/WebFrameImpl.cpp b/chromium/third_party/WebKit/Source/web/WebFrameImpl.cpp deleted file mode 100644 index 47da31ee170..00000000000 --- a/chromium/third_party/WebKit/Source/web/WebFrameImpl.cpp +++ /dev/null @@ -1,2533 +0,0 @@ -/* - * Copyright (C) 2009 Google 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: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * 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. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT - * OWNER 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. - */ - -// How ownership works -// ------------------- -// -// Big oh represents a refcounted relationship: owner O--- ownee -// -// WebView (for the toplevel frame only) -// O -// | -// Page O------- Frame (m_mainFrame) O-------O FrameView -// || -// || -// FrameLoader O-------- WebFrame (via FrameLoaderClient) -// -// FrameLoader and Frame are formerly one object that was split apart because -// it got too big. They basically have the same lifetime, hence the double line. -// -// WebFrame is refcounted and has one ref on behalf of the FrameLoader/Frame. -// This is not a normal reference counted pointer because that would require -// changing WebKit code that we don't control. Instead, it is created with this -// ref initially and it is removed when the FrameLoader is getting destroyed. -// -// WebFrames are created in two places, first in WebViewImpl when the root -// frame is created, and second in WebFrame::createChildFrame when sub-frames -// are created. WebKit will hook up this object to the FrameLoader/Frame -// and the refcount will be correct. -// -// How frames are destroyed -// ------------------------ -// -// The main frame is never destroyed and is re-used. The FrameLoader is re-used -// and a reference to the main frame is kept by the Page. -// -// When frame content is replaced, all subframes are destroyed. This happens -// in FrameLoader::detachFromParent for each subframe. -// -// Frame going away causes the FrameLoader to get deleted. In FrameLoader's -// destructor, it notifies its client with frameLoaderDestroyed. This derefs -// the WebFrame and will cause it to be deleted (unless an external someone -// is also holding a reference). -// -// Thie client is expected to be set whenever the WebFrameImpl is attached to -// the DOM. - -#include "config.h" -#include "WebFrameImpl.h" - -#include <algorithm> -#include "AssociatedURLLoader.h" -#include "DOMUtilitiesPrivate.h" -#include "EventListenerWrapper.h" -#include "FindInPageCoordinates.h" -#include "HTMLNames.h" -#include "PageOverlay.h" -#include "V8DOMFileSystem.h" -#include "V8DirectoryEntry.h" -#include "V8FileEntry.h" -#include "WebConsoleMessage.h" -#include "WebDOMEvent.h" -#include "WebDOMEventListener.h" -#include "WebDataSourceImpl.h" -#include "WebDevToolsAgentPrivate.h" -#include "WebDocument.h" -#include "WebFindOptions.h" -#include "WebFormElement.h" -#include "WebFrameClient.h" -#include "WebHistoryItem.h" -#include "WebIconURL.h" -#include "WebInputElement.h" -#include "WebNode.h" -#include "WebPerformance.h" -#include "WebPlugin.h" -#include "WebPluginContainerImpl.h" -#include "WebPrintParams.h" -#include "WebRange.h" -#include "WebScriptSource.h" -#include "WebSecurityOrigin.h" -#include "WebSerializedScriptValue.h" -#include "WebViewImpl.h" -#include "bindings/v8/DOMWrapperWorld.h" -#include "bindings/v8/ExceptionState.h" -#include "bindings/v8/ExceptionStatePlaceholder.h" -#include "bindings/v8/ScriptController.h" -#include "bindings/v8/ScriptSourceCode.h" -#include "bindings/v8/ScriptValue.h" -#include "bindings/v8/V8GCController.h" -#include "core/dom/Document.h" -#include "core/dom/DocumentMarker.h" -#include "core/dom/DocumentMarkerController.h" -#include "core/dom/IconURL.h" -#include "core/dom/MessagePort.h" -#include "core/dom/Node.h" -#include "core/dom/NodeTraversal.h" -#include "core/dom/shadow/ShadowRoot.h" -#include "core/editing/Editor.h" -#include "core/editing/FrameSelection.h" -#include "core/editing/InputMethodController.h" -#include "core/editing/PlainTextRange.h" -#include "core/editing/SpellChecker.h" -#include "core/editing/TextAffinity.h" -#include "core/editing/TextIterator.h" -#include "core/editing/htmlediting.h" -#include "core/editing/markup.h" -#include "core/frame/Console.h" -#include "core/frame/DOMWindow.h" -#include "core/frame/FrameView.h" -#include "core/history/HistoryItem.h" -#include "core/html/HTMLCollection.h" -#include "core/html/HTMLFormElement.h" -#include "core/html/HTMLFrameOwnerElement.h" -#include "core/html/HTMLHeadElement.h" -#include "core/html/HTMLInputElement.h" -#include "core/html/HTMLLinkElement.h" -#include "core/html/HTMLTextAreaElement.h" -#include "core/html/PluginDocument.h" -#include "core/inspector/InspectorController.h" -#include "core/inspector/ScriptCallStack.h" -#include "core/loader/DocumentLoader.h" -#include "core/loader/FormState.h" -#include "core/loader/FrameLoadRequest.h" -#include "core/loader/FrameLoader.h" -#include "core/loader/SubstituteData.h" -#include "core/page/Chrome.h" -#include "core/page/EventHandler.h" -#include "core/page/FocusController.h" -#include "core/page/FrameTree.h" -#include "core/page/Page.h" -#include "core/page/PrintContext.h" -#include "core/frame/Settings.h" -#include "core/rendering/HitTestResult.h" -#include "core/rendering/RenderBox.h" -#include "core/rendering/RenderFrame.h" -#include "core/rendering/RenderLayer.h" -#include "core/rendering/RenderObject.h" -#include "core/rendering/RenderTreeAsText.h" -#include "core/rendering/RenderView.h" -#include "core/rendering/style/StyleInheritedData.h" -#include "core/timing/Performance.h" -#include "core/xml/DocumentXPathEvaluator.h" -#include "core/xml/XPathResult.h" -#include "modules/filesystem/DOMFileSystem.h" -#include "modules/filesystem/DirectoryEntry.h" -#include "modules/filesystem/FileEntry.h" -#include "platform/FileSystemType.h" -#include "platform/TraceEvent.h" -#include "platform/UserGestureIndicator.h" -#include "platform/clipboard/ClipboardUtilities.h" -#include "platform/fonts/FontCache.h" -#include "platform/graphics/GraphicsContext.h" -#include "platform/graphics/GraphicsLayerClient.h" -#include "platform/graphics/skia/SkiaUtils.h" -#include "platform/network/ResourceRequest.h" -#include "platform/scroll/ScrollbarTheme.h" -#include "platform/scroll/ScrollTypes.h" -#include "platform/weborigin/KURL.h" -#include "platform/weborigin/SchemeRegistry.h" -#include "platform/weborigin/SecurityPolicy.h" -#include "public/platform/Platform.h" -#include "public/platform/WebFileSystem.h" -#include "public/platform/WebFloatPoint.h" -#include "public/platform/WebFloatRect.h" -#include "public/platform/WebLayer.h" -#include "public/platform/WebPoint.h" -#include "public/platform/WebRect.h" -#include "public/platform/WebSize.h" -#include "public/platform/WebURLError.h" -#include "public/platform/WebVector.h" -#include "wtf/CurrentTime.h" -#include "wtf/HashMap.h" - -using namespace WebCore; - -namespace blink { - -static int frameCount = 0; - -// Key for a StatsCounter tracking how many WebFrames are active. -static const char webFrameActiveCount[] = "WebFrameActiveCount"; - -static void frameContentAsPlainText(size_t maxChars, Frame* frame, StringBuilder& output) -{ - Document* document = frame->document(); - if (!document) - return; - - if (!frame->view()) - return; - - // TextIterator iterates over the visual representation of the DOM. As such, - // it requires you to do a layout before using it (otherwise it'll crash). - document->updateLayout(); - - // Select the document body. - RefPtr<Range> range(document->createRange()); - TrackExceptionState exceptionState; - range->selectNodeContents(document->body(), exceptionState); - - if (!exceptionState.hadException()) { - // The text iterator will walk nodes giving us text. This is similar to - // the plainText() function in core/editing/TextIterator.h, but we implement the maximum - // size and also copy the results directly into a wstring, avoiding the - // string conversion. - for (TextIterator it(range.get()); !it.atEnd(); it.advance()) { - it.appendTextToStringBuilder(output, 0, maxChars - output.length()); - if (output.length() >= maxChars) - return; // Filled up the buffer. - } - } - - // The separator between frames when the frames are converted to plain text. - const LChar frameSeparator[] = { '\n', '\n' }; - const size_t frameSeparatorLength = WTF_ARRAY_LENGTH(frameSeparator); - - // Recursively walk the children. - const FrameTree& frameTree = frame->tree(); - for (Frame* curChild = frameTree.firstChild(); curChild; curChild = curChild->tree().nextSibling()) { - // Ignore the text of non-visible frames. - RenderView* contentRenderer = curChild->contentRenderer(); - RenderPart* ownerRenderer = curChild->ownerRenderer(); - if (!contentRenderer || !contentRenderer->width() || !contentRenderer->height() - || (contentRenderer->x() + contentRenderer->width() <= 0) || (contentRenderer->y() + contentRenderer->height() <= 0) - || (ownerRenderer && ownerRenderer->style() && ownerRenderer->style()->visibility() != VISIBLE)) { - continue; - } - - // Make sure the frame separator won't fill up the buffer, and give up if - // it will. The danger is if the separator will make the buffer longer than - // maxChars. This will cause the computation above: - // maxChars - output->size() - // to be a negative number which will crash when the subframe is added. - if (output.length() >= maxChars - frameSeparatorLength) - return; - - output.append(frameSeparator, frameSeparatorLength); - frameContentAsPlainText(maxChars, curChild, output); - if (output.length() >= maxChars) - return; // Filled up the buffer. - } -} - -WebPluginContainerImpl* WebFrameImpl::pluginContainerFromFrame(Frame* frame) -{ - if (!frame) - return 0; - if (!frame->document() || !frame->document()->isPluginDocument()) - return 0; - PluginDocument* pluginDocument = toPluginDocument(frame->document()); - return toPluginContainerImpl(pluginDocument->pluginWidget()); -} - -WebPluginContainerImpl* WebFrameImpl::pluginContainerFromNode(WebCore::Frame* frame, const WebNode& node) -{ - WebPluginContainerImpl* pluginContainer = pluginContainerFromFrame(frame); - if (pluginContainer) - return pluginContainer; - return toPluginContainerImpl(node.pluginContainer()); -} - -// Simple class to override some of PrintContext behavior. Some of the methods -// made virtual so that they can be overridden by ChromePluginPrintContext. -class ChromePrintContext : public PrintContext { - WTF_MAKE_NONCOPYABLE(ChromePrintContext); -public: - ChromePrintContext(Frame* frame) - : PrintContext(frame) - , m_printedPageWidth(0) - { - } - - virtual ~ChromePrintContext() { } - - virtual void begin(float width, float height) - { - ASSERT(!m_printedPageWidth); - m_printedPageWidth = width; - PrintContext::begin(m_printedPageWidth, height); - } - - virtual void end() - { - PrintContext::end(); - } - - virtual float getPageShrink(int pageNumber) const - { - IntRect pageRect = m_pageRects[pageNumber]; - return m_printedPageWidth / pageRect.width(); - } - - // Spools the printed page, a subrect of frame(). Skip the scale step. - // NativeTheme doesn't play well with scaling. Scaling is done browser side - // instead. Returns the scale to be applied. - // On Linux, we don't have the problem with NativeTheme, hence we let WebKit - // do the scaling and ignore the return value. - virtual float spoolPage(GraphicsContext& context, int pageNumber) - { - IntRect pageRect = m_pageRects[pageNumber]; - float scale = m_printedPageWidth / pageRect.width(); - - context.save(); -#if OS(POSIX) && !OS(MACOSX) - context.scale(WebCore::FloatSize(scale, scale)); -#endif - context.translate(static_cast<float>(-pageRect.x()), static_cast<float>(-pageRect.y())); - context.clip(pageRect); - frame()->view()->paintContents(&context, pageRect); - if (context.supportsURLFragments()) - outputLinkedDestinations(context, frame()->document(), pageRect); - context.restore(); - return scale; - } - - void spoolAllPagesWithBoundaries(GraphicsContext& graphicsContext, const FloatSize& pageSizeInPixels) - { - if (!frame()->document() || !frame()->view() || !frame()->document()->renderer()) - return; - - frame()->document()->updateLayout(); - - float pageHeight; - computePageRects(FloatRect(FloatPoint(0, 0), pageSizeInPixels), 0, 0, 1, pageHeight); - - const float pageWidth = pageSizeInPixels.width(); - size_t numPages = pageRects().size(); - int totalHeight = numPages * (pageSizeInPixels.height() + 1) - 1; - - // Fill the whole background by white. - graphicsContext.setFillColor(Color::white); - graphicsContext.fillRect(FloatRect(0, 0, pageWidth, totalHeight)); - - graphicsContext.save(); - - int currentHeight = 0; - for (size_t pageIndex = 0; pageIndex < numPages; pageIndex++) { - // Draw a line for a page boundary if this isn't the first page. - if (pageIndex > 0) { - graphicsContext.save(); - graphicsContext.setStrokeColor(Color(0, 0, 255)); - graphicsContext.setFillColor(Color(0, 0, 255)); - graphicsContext.drawLine(IntPoint(0, currentHeight), IntPoint(pageWidth, currentHeight)); - graphicsContext.restore(); - } - - graphicsContext.save(); - - graphicsContext.translate(0, currentHeight); -#if OS(WIN) || OS(MACOSX) - // Account for the disabling of scaling in spoolPage. In the context - // of spoolAllPagesWithBoundaries the scale HAS NOT been pre-applied. - float scale = getPageShrink(pageIndex); - graphicsContext.scale(WebCore::FloatSize(scale, scale)); -#endif - spoolPage(graphicsContext, pageIndex); - graphicsContext.restore(); - - currentHeight += pageSizeInPixels.height() + 1; - } - - graphicsContext.restore(); - } - - virtual void computePageRects(const FloatRect& printRect, float headerHeight, float footerHeight, float userScaleFactor, float& outPageHeight) - { - PrintContext::computePageRects(printRect, headerHeight, footerHeight, userScaleFactor, outPageHeight); - } - - virtual int pageCount() const - { - return PrintContext::pageCount(); - } - -private: - // Set when printing. - float m_printedPageWidth; -}; - -// Simple class to override some of PrintContext behavior. This is used when -// the frame hosts a plugin that supports custom printing. In this case, we -// want to delegate all printing related calls to the plugin. -class ChromePluginPrintContext : public ChromePrintContext { -public: - ChromePluginPrintContext(Frame* frame, WebPluginContainerImpl* plugin, const WebPrintParams& printParams) - : ChromePrintContext(frame), m_plugin(plugin), m_pageCount(0), m_printParams(printParams) - { - } - - virtual ~ChromePluginPrintContext() { } - - virtual void begin(float width, float height) - { - } - - virtual void end() - { - m_plugin->printEnd(); - } - - virtual float getPageShrink(int pageNumber) const - { - // We don't shrink the page (maybe we should ask the widget ??) - return 1.0; - } - - virtual void computePageRects(const FloatRect& printRect, float headerHeight, float footerHeight, float userScaleFactor, float& outPageHeight) - { - m_printParams.printContentArea = IntRect(printRect); - m_pageCount = m_plugin->printBegin(m_printParams); - } - - virtual int pageCount() const - { - return m_pageCount; - } - - // Spools the printed page, a subrect of frame(). Skip the scale step. - // NativeTheme doesn't play well with scaling. Scaling is done browser side - // instead. Returns the scale to be applied. - virtual float spoolPage(GraphicsContext& context, int pageNumber) - { - m_plugin->printPage(pageNumber, &context); - return 1.0; - } - -private: - // Set when printing. - WebPluginContainerImpl* m_plugin; - int m_pageCount; - WebPrintParams m_printParams; - -}; - -static WebDataSource* DataSourceForDocLoader(DocumentLoader* loader) -{ - return loader ? WebDataSourceImpl::fromDocumentLoader(loader) : 0; -} - -WebFrameImpl::FindMatch::FindMatch(PassRefPtr<Range> range, int ordinal) - : m_range(range) - , m_ordinal(ordinal) -{ -} - -class WebFrameImpl::DeferredScopeStringMatches { -public: - DeferredScopeStringMatches(WebFrameImpl* webFrame, int identifier, const WebString& searchText, const WebFindOptions& options, bool reset) - : m_timer(this, &DeferredScopeStringMatches::doTimeout) - , m_webFrame(webFrame) - , m_identifier(identifier) - , m_searchText(searchText) - , m_options(options) - , m_reset(reset) - { - m_timer.startOneShot(0.0); - } - -private: - void doTimeout(Timer<DeferredScopeStringMatches>*) - { - m_webFrame->callScopeStringMatches(this, m_identifier, m_searchText, m_options, m_reset); - } - - Timer<DeferredScopeStringMatches> m_timer; - RefPtr<WebFrameImpl> m_webFrame; - int m_identifier; - WebString m_searchText; - WebFindOptions m_options; - bool m_reset; -}; - -// WebFrame ------------------------------------------------------------------- - -int WebFrame::instanceCount() -{ - return frameCount; -} - -WebFrame* WebFrame::frameForCurrentContext() -{ - v8::Handle<v8::Context> context = v8::Isolate::GetCurrent()->GetCurrentContext(); - if (context.IsEmpty()) - return 0; - return frameForContext(context); -} - -WebFrame* WebFrame::frameForContext(v8::Handle<v8::Context> context) -{ - return WebFrameImpl::fromFrame(toFrameIfNotDetached(context)); -} - -WebFrame* WebFrame::fromFrameOwnerElement(const WebElement& element) -{ - return WebFrameImpl::fromFrameOwnerElement(PassRefPtr<Element>(element).get()); -} - -void WebFrameImpl::close() -{ - m_client = 0; - deref(); // Balances ref() acquired in WebFrame::create -} - -WebString WebFrameImpl::uniqueName() const -{ - return frame()->tree().uniqueName(); -} - -WebString WebFrameImpl::assignedName() const -{ - return frame()->tree().name(); -} - -void WebFrameImpl::setName(const WebString& name) -{ - frame()->tree().setName(name); -} - -long long WebFrameImpl::embedderIdentifier() const -{ - return m_frameInit->frameID(); -} - -WebVector<WebIconURL> WebFrameImpl::iconURLs(int iconTypesMask) const -{ - // The URL to the icon may be in the header. As such, only - // ask the loader for the icon if it's finished loading. - if (frame()->loader().state() == FrameStateComplete) - return frame()->document()->iconURLs(iconTypesMask); - return WebVector<WebIconURL>(); -} - -void WebFrameImpl::setRemoteWebLayer(WebLayer* webLayer) -{ - if (!frame()) - return; - - if (frame()->remotePlatformLayer()) - GraphicsLayer::unregisterContentsLayer(frame()->remotePlatformLayer()); - if (webLayer) - GraphicsLayer::registerContentsLayer(webLayer); - frame()->setRemotePlatformLayer(webLayer); - frame()->ownerElement()->setNeedsStyleRecalc(WebCore::SubtreeStyleChange, WebCore::StyleChangeFromRenderer); -} - -void WebFrameImpl::setPermissionClient(WebPermissionClient* permissionClient) -{ - m_permissionClient = permissionClient; -} - -WebSize WebFrameImpl::scrollOffset() const -{ - FrameView* view = frameView(); - if (!view) - return WebSize(); - return view->scrollOffset(); -} - -WebSize WebFrameImpl::minimumScrollOffset() const -{ - FrameView* view = frameView(); - if (!view) - return WebSize(); - return toIntSize(view->minimumScrollPosition()); -} - -WebSize WebFrameImpl::maximumScrollOffset() const -{ - FrameView* view = frameView(); - if (!view) - return WebSize(); - return toIntSize(view->maximumScrollPosition()); -} - -void WebFrameImpl::setScrollOffset(const WebSize& offset) -{ - if (FrameView* view = frameView()) - view->setScrollOffset(IntPoint(offset.width, offset.height)); -} - -WebSize WebFrameImpl::contentsSize() const -{ - return frame()->view()->contentsSize(); -} - -bool WebFrameImpl::hasVisibleContent() const -{ - return frame()->view()->visibleWidth() > 0 && frame()->view()->visibleHeight() > 0; -} - -WebRect WebFrameImpl::visibleContentRect() const -{ - return frame()->view()->visibleContentRect(); -} - -bool WebFrameImpl::hasHorizontalScrollbar() const -{ - return frame() && frame()->view() && frame()->view()->horizontalScrollbar(); -} - -bool WebFrameImpl::hasVerticalScrollbar() const -{ - return frame() && frame()->view() && frame()->view()->verticalScrollbar(); -} - -WebView* WebFrameImpl::view() const -{ - return viewImpl(); -} - -WebFrame* WebFrameImpl::opener() const -{ - if (!frame()) - return 0; - return fromFrame(frame()->loader().opener()); -} - -void WebFrameImpl::setOpener(const WebFrame* webFrame) -{ - frame()->loader().setOpener(webFrame ? toWebFrameImpl(webFrame)->frame() : 0); -} - -WebFrame* WebFrameImpl::parent() const -{ - if (!frame()) - return 0; - return fromFrame(frame()->tree().parent()); -} - -WebFrame* WebFrameImpl::top() const -{ - if (!frame()) - return 0; - return fromFrame(frame()->tree().top()); -} - -WebFrame* WebFrameImpl::firstChild() const -{ - if (!frame()) - return 0; - return fromFrame(frame()->tree().firstChild()); -} - -WebFrame* WebFrameImpl::lastChild() const -{ - if (!frame()) - return 0; - return fromFrame(frame()->tree().lastChild()); -} - -WebFrame* WebFrameImpl::nextSibling() const -{ - if (!frame()) - return 0; - return fromFrame(frame()->tree().nextSibling()); -} - -WebFrame* WebFrameImpl::previousSibling() const -{ - if (!frame()) - return 0; - return fromFrame(frame()->tree().previousSibling()); -} - -WebFrame* WebFrameImpl::traverseNext(bool wrap) const -{ - if (!frame()) - return 0; - return fromFrame(frame()->tree().traverseNextWithWrap(wrap)); -} - -WebFrame* WebFrameImpl::traversePrevious(bool wrap) const -{ - if (!frame()) - return 0; - return fromFrame(frame()->tree().traversePreviousWithWrap(wrap)); -} - -WebFrame* WebFrameImpl::findChildByName(const WebString& name) const -{ - if (!frame()) - return 0; - return fromFrame(frame()->tree().child(name)); -} - -WebFrame* WebFrameImpl::findChildByExpression(const WebString& xpath) const -{ - if (xpath.isEmpty()) - return 0; - - Document* document = frame()->document(); - - RefPtr<XPathResult> xpathResult = DocumentXPathEvaluator::evaluate(document, xpath, document, 0, XPathResult::ORDERED_NODE_ITERATOR_TYPE, 0, IGNORE_EXCEPTION); - if (!xpathResult) - return 0; - - Node* node = xpathResult->iterateNext(IGNORE_EXCEPTION); - if (!node || !node->isFrameOwnerElement()) - return 0; - return fromFrame(toHTMLFrameOwnerElement(node)->contentFrame()); -} - -WebDocument WebFrameImpl::document() const -{ - if (!frame() || !frame()->document()) - return WebDocument(); - return WebDocument(frame()->document()); -} - -WebPerformance WebFrameImpl::performance() const -{ - if (!frame()) - return WebPerformance(); - return WebPerformance(frame()->domWindow()->performance()); -} - -NPObject* WebFrameImpl::windowObject() const -{ - if (!frame()) - return 0; - return frame()->script().windowScriptNPObject(); -} - -void WebFrameImpl::bindToWindowObject(const WebString& name, NPObject* object) -{ - bindToWindowObject(name, object, 0); -} - -void WebFrameImpl::bindToWindowObject(const WebString& name, NPObject* object, void*) -{ - if (!frame() || !frame()->script().canExecuteScripts(NotAboutToExecuteScript)) - return; - frame()->script().bindToWindowObject(frame(), String(name), object); -} - -void WebFrameImpl::executeScript(const WebScriptSource& source) -{ - ASSERT(frame()); - TextPosition position(OrdinalNumber::fromOneBasedInt(source.startLine), OrdinalNumber::first()); - frame()->script().executeScriptInMainWorld(ScriptSourceCode(source.code, source.url, position)); -} - -void WebFrameImpl::executeScriptInIsolatedWorld(int worldID, const WebScriptSource* sourcesIn, unsigned numSources, int extensionGroup) -{ - ASSERT(frame()); - RELEASE_ASSERT(worldID > 0); - RELEASE_ASSERT(worldID < EmbedderWorldIdLimit); - - Vector<ScriptSourceCode> sources; - for (unsigned i = 0; i < numSources; ++i) { - TextPosition position(OrdinalNumber::fromOneBasedInt(sourcesIn[i].startLine), OrdinalNumber::first()); - sources.append(ScriptSourceCode(sourcesIn[i].code, sourcesIn[i].url, position)); - } - - frame()->script().executeScriptInIsolatedWorld(worldID, sources, extensionGroup, 0); -} - -void WebFrameImpl::setIsolatedWorldSecurityOrigin(int worldID, const WebSecurityOrigin& securityOrigin) -{ - ASSERT(frame()); - DOMWrapperWorld::setIsolatedWorldSecurityOrigin(worldID, securityOrigin.get()); -} - -void WebFrameImpl::setIsolatedWorldContentSecurityPolicy(int worldID, const WebString& policy) -{ - ASSERT(frame()); - DOMWrapperWorld::setIsolatedWorldContentSecurityPolicy(worldID, policy); -} - -void WebFrameImpl::addMessageToConsole(const WebConsoleMessage& message) -{ - ASSERT(frame()); - - MessageLevel webCoreMessageLevel; - switch (message.level) { - case WebConsoleMessage::LevelDebug: - webCoreMessageLevel = DebugMessageLevel; - break; - case WebConsoleMessage::LevelLog: - webCoreMessageLevel = LogMessageLevel; - break; - case WebConsoleMessage::LevelWarning: - webCoreMessageLevel = WarningMessageLevel; - break; - case WebConsoleMessage::LevelError: - webCoreMessageLevel = ErrorMessageLevel; - break; - default: - ASSERT_NOT_REACHED(); - return; - } - - frame()->document()->addConsoleMessage(OtherMessageSource, webCoreMessageLevel, message.text); -} - -void WebFrameImpl::collectGarbage() -{ - if (!frame()) - return; - if (!frame()->settings()->isScriptEnabled()) - return; - V8GCController::collectGarbage(v8::Isolate::GetCurrent()); -} - -bool WebFrameImpl::checkIfRunInsecureContent(const WebURL& url) const -{ - ASSERT(frame()); - return frame()->loader().mixedContentChecker()->canRunInsecureContent(frame()->document()->securityOrigin(), url); -} - -v8::Handle<v8::Value> WebFrameImpl::executeScriptAndReturnValue(const WebScriptSource& source) -{ - ASSERT(frame()); - - // FIXME: This fake user gesture is required to make a bunch of pyauto - // tests pass. If this isn't needed in non-test situations, we should - // consider removing this code and changing the tests. - // http://code.google.com/p/chromium/issues/detail?id=86397 - UserGestureIndicator gestureIndicator(DefinitelyProcessingNewUserGesture); - - TextPosition position(OrdinalNumber::fromOneBasedInt(source.startLine), OrdinalNumber::first()); - return frame()->script().executeScriptInMainWorldAndReturnValue(ScriptSourceCode(source.code, source.url, position)).v8Value(); -} - -void WebFrameImpl::executeScriptInIsolatedWorld(int worldID, const WebScriptSource* sourcesIn, unsigned numSources, int extensionGroup, WebVector<v8::Local<v8::Value> >* results) -{ - ASSERT(frame()); - RELEASE_ASSERT(worldID > 0); - RELEASE_ASSERT(worldID < EmbedderWorldIdLimit); - - Vector<ScriptSourceCode> sources; - - for (unsigned i = 0; i < numSources; ++i) { - TextPosition position(OrdinalNumber::fromOneBasedInt(sourcesIn[i].startLine), OrdinalNumber::first()); - sources.append(ScriptSourceCode(sourcesIn[i].code, sourcesIn[i].url, position)); - } - - if (results) { - Vector<ScriptValue> scriptResults; - frame()->script().executeScriptInIsolatedWorld(worldID, sources, extensionGroup, &scriptResults); - WebVector<v8::Local<v8::Value> > v8Results(scriptResults.size()); - for (unsigned i = 0; i < scriptResults.size(); i++) - v8Results[i] = v8::Local<v8::Value>::New(toIsolate(frame()), scriptResults[i].v8Value()); - results->swap(v8Results); - } else { - frame()->script().executeScriptInIsolatedWorld(worldID, sources, extensionGroup, 0); - } -} - -v8::Handle<v8::Value> WebFrameImpl::callFunctionEvenIfScriptDisabled(v8::Handle<v8::Function> function, v8::Handle<v8::Object> receiver, int argc, v8::Handle<v8::Value> argv[]) -{ - ASSERT(frame()); - return frame()->script().callFunction(function, receiver, argc, argv); -} - -v8::Local<v8::Context> WebFrameImpl::mainWorldScriptContext() const -{ - if (!frame()) - return v8::Local<v8::Context>(); - return ScriptController::mainWorldContext(frame()); -} - -v8::Handle<v8::Value> WebFrameImpl::createFileSystem(WebFileSystemType type, const WebString& name, const WebString& path) -{ - ASSERT(frame()); - return toV8(DOMFileSystem::create(frame()->document(), name, static_cast<WebCore::FileSystemType>(type), KURL(ParsedURLString, path.utf8().data())), v8::Handle<v8::Object>(), toIsolate(frame())); -} - -v8::Handle<v8::Value> WebFrameImpl::createSerializableFileSystem(WebFileSystemType type, const WebString& name, const WebString& path) -{ - ASSERT(frame()); - RefPtr<DOMFileSystem> fileSystem = DOMFileSystem::create(frame()->document(), name, static_cast<WebCore::FileSystemType>(type), KURL(ParsedURLString, path.utf8().data())); - fileSystem->makeClonable(); - return toV8(fileSystem.release(), v8::Handle<v8::Object>(), toIsolate(frame())); -} - -v8::Handle<v8::Value> WebFrameImpl::createFileEntry(WebFileSystemType type, const WebString& fileSystemName, const WebString& fileSystemPath, const WebString& filePath, bool isDirectory) -{ - ASSERT(frame()); - - RefPtr<DOMFileSystemBase> fileSystem = DOMFileSystem::create(frame()->document(), fileSystemName, static_cast<WebCore::FileSystemType>(type), KURL(ParsedURLString, fileSystemPath.utf8().data())); - if (isDirectory) - return toV8(DirectoryEntry::create(fileSystem, filePath), v8::Handle<v8::Object>(), toIsolate(frame())); - return toV8(FileEntry::create(fileSystem, filePath), v8::Handle<v8::Object>(), toIsolate(frame())); -} - -void WebFrameImpl::reload(bool ignoreCache) -{ - ASSERT(frame()); - frame()->loader().reload(ignoreCache ? EndToEndReload : NormalReload); -} - -void WebFrameImpl::reloadWithOverrideURL(const WebURL& overrideUrl, bool ignoreCache) -{ - ASSERT(frame()); - frame()->loader().reload(ignoreCache ? EndToEndReload : NormalReload, overrideUrl); -} - -void WebFrameImpl::loadRequest(const WebURLRequest& request) -{ - ASSERT(frame()); - ASSERT(!request.isNull()); - const ResourceRequest& resourceRequest = request.toResourceRequest(); - - if (resourceRequest.url().protocolIs("javascript")) { - loadJavaScriptURL(resourceRequest.url()); - return; - } - - frame()->loader().load(FrameLoadRequest(0, resourceRequest)); -} - -void WebFrameImpl::loadHistoryItem(const WebHistoryItem& item) -{ - ASSERT(frame()); - RefPtr<HistoryItem> historyItem = PassRefPtr<HistoryItem>(item); - ASSERT(historyItem); - frame()->page()->historyController().goToItem(historyItem.get()); -} - -void WebFrameImpl::loadData(const WebData& data, const WebString& mimeType, const WebString& textEncoding, const WebURL& baseURL, const WebURL& unreachableURL, bool replace) -{ - ASSERT(frame()); - - // If we are loading substitute data to replace an existing load, then - // inherit all of the properties of that original request. This way, - // reload will re-attempt the original request. It is essential that - // we only do this when there is an unreachableURL since a non-empty - // unreachableURL informs FrameLoader::reload to load unreachableURL - // instead of the currently loaded URL. - ResourceRequest request; - if (replace && !unreachableURL.isEmpty()) - request = frame()->loader().originalRequest(); - request.setURL(baseURL); - - FrameLoadRequest frameRequest(0, request, SubstituteData(data, mimeType, textEncoding, unreachableURL)); - ASSERT(frameRequest.substituteData().isValid()); - frameRequest.setLockBackForwardList(replace); - frame()->loader().load(frameRequest); -} - -void WebFrameImpl::loadHTMLString(const WebData& data, const WebURL& baseURL, const WebURL& unreachableURL, bool replace) -{ - ASSERT(frame()); - loadData(data, WebString::fromUTF8("text/html"), WebString::fromUTF8("UTF-8"), baseURL, unreachableURL, replace); -} - -bool WebFrameImpl::isLoading() const -{ - if (!frame()) - return false; - return frame()->loader().isLoading(); -} - -void WebFrameImpl::stopLoading() -{ - if (!frame()) - return; - // FIXME: Figure out what we should really do here. It seems like a bug - // that FrameLoader::stopLoading doesn't call stopAllLoaders. - frame()->loader().stopAllLoaders(); -} - -WebDataSource* WebFrameImpl::provisionalDataSource() const -{ - ASSERT(frame()); - - // We regard the policy document loader as still provisional. - DocumentLoader* documentLoader = frame()->loader().provisionalDocumentLoader(); - if (!documentLoader) - documentLoader = frame()->loader().policyDocumentLoader(); - - return DataSourceForDocLoader(documentLoader); -} - -WebDataSource* WebFrameImpl::dataSource() const -{ - ASSERT(frame()); - return DataSourceForDocLoader(frame()->loader().documentLoader()); -} - -WebHistoryItem WebFrameImpl::previousHistoryItem() const -{ - ASSERT(frame()); - // We use the previous item here because documentState (filled-out forms) - // only get saved to history when it becomes the previous item. The caller - // is expected to query the history item after a navigation occurs, after - // the desired history item has become the previous entry. - return WebHistoryItem(frame()->page()->historyController().previousItemForExport()); -} - -WebHistoryItem WebFrameImpl::currentHistoryItem() const -{ - ASSERT(frame()); - - // We're shutting down. - if (!frame()->loader().activeDocumentLoader()) - return WebHistoryItem(); - - // If we are still loading, then we don't want to clobber the current - // history item as this could cause us to lose the scroll position and - // document state. However, it is OK for new navigations. - // FIXME: Can we make this a plain old getter, instead of worrying about - // clobbering here? - if (!frame()->page()->historyController().inSameDocumentLoad() && (frame()->loader().loadType() == FrameLoadTypeStandard - || !frame()->loader().activeDocumentLoader()->isLoadingInAPISense())) - frame()->loader().saveDocumentAndScrollState(); - - if (RefPtr<HistoryItem> item = frame()->page()->historyController().provisionalItemForExport()) - return WebHistoryItem(item); - return WebHistoryItem(frame()->page()->historyController().currentItemForExport()); -} - -void WebFrameImpl::enableViewSourceMode(bool enable) -{ - if (frame()) - frame()->setInViewSourceMode(enable); -} - -bool WebFrameImpl::isViewSourceModeEnabled() const -{ - if (!frame()) - return false; - return frame()->inViewSourceMode(); -} - -void WebFrameImpl::setReferrerForRequest(WebURLRequest& request, const WebURL& referrerURL) -{ - String referrer = referrerURL.isEmpty() ? frame()->document()->outgoingReferrer() : String(referrerURL.spec().utf16()); - referrer = SecurityPolicy::generateReferrerHeader(frame()->document()->referrerPolicy(), request.url(), referrer); - if (referrer.isEmpty()) - return; - request.setHTTPHeaderField(WebString::fromUTF8("Referer"), referrer); -} - -void WebFrameImpl::dispatchWillSendRequest(WebURLRequest& request) -{ - ResourceResponse response; - frame()->loader().client()->dispatchWillSendRequest(0, 0, request.toMutableResourceRequest(), response); -} - -WebURLLoader* WebFrameImpl::createAssociatedURLLoader(const WebURLLoaderOptions& options) -{ - return new AssociatedURLLoader(this, options); -} - -unsigned WebFrameImpl::unloadListenerCount() const -{ - return frame()->domWindow()->pendingUnloadEventListeners(); -} - -void WebFrameImpl::replaceSelection(const WebString& text) -{ - bool selectReplacement = false; - bool smartReplace = true; - frame()->editor().replaceSelectionWithText(text, selectReplacement, smartReplace); -} - -void WebFrameImpl::insertText(const WebString& text) -{ - if (frame()->inputMethodController().hasComposition()) - frame()->inputMethodController().confirmComposition(text); - else - frame()->editor().insertText(text, 0); -} - -void WebFrameImpl::setMarkedText(const WebString& text, unsigned location, unsigned length) -{ - Vector<CompositionUnderline> decorations; - frame()->inputMethodController().setComposition(text, decorations, location, length); -} - -void WebFrameImpl::unmarkText() -{ - frame()->inputMethodController().cancelComposition(); -} - -bool WebFrameImpl::hasMarkedText() const -{ - return frame()->inputMethodController().hasComposition(); -} - -WebRange WebFrameImpl::markedRange() const -{ - return frame()->inputMethodController().compositionRange(); -} - -bool WebFrameImpl::firstRectForCharacterRange(unsigned location, unsigned length, WebRect& rect) const -{ - if ((location + length < location) && (location + length)) - length = 0; - - Element* editable = frame()->selection().rootEditableElementOrDocumentElement(); - ASSERT(editable); - RefPtr<Range> range = PlainTextRange(location, location + length).createRange(*editable); - if (!range) - return false; - IntRect intRect = frame()->editor().firstRectForRange(range.get()); - rect = WebRect(intRect); - rect = frame()->view()->contentsToWindow(rect); - return true; -} - -size_t WebFrameImpl::characterIndexForPoint(const WebPoint& webPoint) const -{ - if (!frame()) - return kNotFound; - - IntPoint point = frame()->view()->windowToContents(webPoint); - HitTestResult result = frame()->eventHandler().hitTestResultAtPoint(point, HitTestRequest::ReadOnly | HitTestRequest::Active | HitTestRequest::ConfusingAndOftenMisusedDisallowShadowContent); - RefPtr<Range> range = frame()->rangeForPoint(result.roundedPointInInnerNodeFrame()); - if (!range) - return kNotFound; - Element* editable = frame()->selection().rootEditableElementOrDocumentElement(); - ASSERT(editable); - return PlainTextRange::create(*editable, *range.get()).start(); -} - -bool WebFrameImpl::executeCommand(const WebString& name, const WebNode& node) -{ - ASSERT(frame()); - - if (name.length() <= 2) - return false; - - // Since we don't have NSControl, we will convert the format of command - // string and call the function on Editor directly. - String command = name; - - // Make sure the first letter is upper case. - command.replace(0, 1, command.substring(0, 1).upper()); - - // Remove the trailing ':' if existing. - if (command[command.length() - 1] == UChar(':')) - command = command.substring(0, command.length() - 1); - - WebPluginContainerImpl* pluginContainer = pluginContainerFromNode(frame(), node); - if (pluginContainer && pluginContainer->executeEditCommand(name)) - return true; - - bool result = true; - - // Specially handling commands that Editor::execCommand does not directly - // support. - if (command == "DeleteToEndOfParagraph") { - if (!frame()->editor().deleteWithDirection(DirectionForward, ParagraphBoundary, true, false)) - frame()->editor().deleteWithDirection(DirectionForward, CharacterGranularity, true, false); - } else if (command == "Indent") { - frame()->editor().indent(); - } else if (command == "Outdent") { - frame()->editor().outdent(); - } else if (command == "DeleteBackward") { - result = frame()->editor().command(AtomicString("BackwardDelete")).execute(); - } else if (command == "DeleteForward") { - result = frame()->editor().command(AtomicString("ForwardDelete")).execute(); - } else if (command == "AdvanceToNextMisspelling") { - // Wee need to pass false here or else the currently selected word will never be skipped. - frame()->spellChecker().advanceToNextMisspelling(false); - } else if (command == "ToggleSpellPanel") { - frame()->spellChecker().showSpellingGuessPanel(); - } else { - result = frame()->editor().command(command).execute(); - } - return result; -} - -bool WebFrameImpl::executeCommand(const WebString& name, const WebString& value, const WebNode& node) -{ - ASSERT(frame()); - String webName = name; - - WebPluginContainerImpl* pluginContainer = pluginContainerFromNode(frame(), node); - if (pluginContainer && pluginContainer->executeEditCommand(name, value)) - return true; - - // moveToBeginningOfDocument and moveToEndfDocument are only handled by WebKit for editable nodes. - if (!frame()->editor().canEdit() && webName == "moveToBeginningOfDocument") - return viewImpl()->propagateScroll(ScrollUp, ScrollByDocument); - - if (!frame()->editor().canEdit() && webName == "moveToEndOfDocument") - return viewImpl()->propagateScroll(ScrollDown, ScrollByDocument); - - if (webName == "showGuessPanel") { - frame()->spellChecker().showSpellingGuessPanel(); - return true; - } - - return frame()->editor().command(webName).execute(value); -} - -bool WebFrameImpl::isCommandEnabled(const WebString& name) const -{ - ASSERT(frame()); - return frame()->editor().command(name).isEnabled(); -} - -void WebFrameImpl::enableContinuousSpellChecking(bool enable) -{ - if (enable == isContinuousSpellCheckingEnabled()) - return; - frame()->spellChecker().toggleContinuousSpellChecking(); -} - -bool WebFrameImpl::isContinuousSpellCheckingEnabled() const -{ - return frame()->spellChecker().isContinuousSpellCheckingEnabled(); -} - -void WebFrameImpl::requestTextChecking(const WebElement& webElement) -{ - if (webElement.isNull()) - return; - frame()->spellChecker().requestTextChecking(*webElement.constUnwrap<Element>()); -} - -void WebFrameImpl::replaceMisspelledRange(const WebString& text) -{ - // If this caret selection has two or more markers, this function replace the range covered by the first marker with the specified word as Microsoft Word does. - if (pluginContainerFromFrame(frame())) - return; - RefPtr<Range> caretRange = frame()->selection().toNormalizedRange(); - if (!caretRange) - return; - Vector<DocumentMarker*> markers = frame()->document()->markers()->markersInRange(caretRange.get(), DocumentMarker::MisspellingMarkers()); - if (markers.size() < 1 || markers[0]->startOffset() >= markers[0]->endOffset()) - return; - RefPtr<Range> markerRange = Range::create(caretRange->ownerDocument(), caretRange->startContainer(), markers[0]->startOffset(), caretRange->endContainer(), markers[0]->endOffset()); - if (!markerRange) - return; - frame()->selection().setSelection(markerRange.get(), CharacterGranularity); - frame()->editor().replaceSelectionWithText(text, false, false); -} - -void WebFrameImpl::removeSpellingMarkers() -{ - frame()->document()->markers()->removeMarkers(DocumentMarker::MisspellingMarkers()); -} - -bool WebFrameImpl::hasSelection() const -{ - WebPluginContainerImpl* pluginContainer = pluginContainerFromFrame(frame()); - if (pluginContainer) - return pluginContainer->plugin()->hasSelection(); - - // frame()->selection()->isNone() never returns true. - return frame()->selection().start() != frame()->selection().end(); -} - -WebRange WebFrameImpl::selectionRange() const -{ - return frame()->selection().toNormalizedRange(); -} - -WebString WebFrameImpl::selectionAsText() const -{ - WebPluginContainerImpl* pluginContainer = pluginContainerFromFrame(frame()); - if (pluginContainer) - return pluginContainer->plugin()->selectionAsText(); - - RefPtr<Range> range = frame()->selection().toNormalizedRange(); - if (!range) - return WebString(); - - String text = range->text(); -#if OS(WIN) - replaceNewlinesWithWindowsStyleNewlines(text); -#endif - replaceNBSPWithSpace(text); - return text; -} - -WebString WebFrameImpl::selectionAsMarkup() const -{ - WebPluginContainerImpl* pluginContainer = pluginContainerFromFrame(frame()); - if (pluginContainer) - return pluginContainer->plugin()->selectionAsMarkup(); - - RefPtr<Range> range = frame()->selection().toNormalizedRange(); - if (!range) - return WebString(); - - return createMarkup(range.get(), 0, AnnotateForInterchange, false, ResolveNonLocalURLs); -} - -void WebFrameImpl::selectWordAroundPosition(Frame* frame, VisiblePosition position) -{ - VisibleSelection selection(position); - selection.expandUsingGranularity(WordGranularity); - - TextGranularity granularity = selection.isRange() ? WordGranularity : CharacterGranularity; - frame->selection().setSelection(selection, granularity); -} - -bool WebFrameImpl::selectWordAroundCaret() -{ - FrameSelection& selection = frame()->selection(); - ASSERT(!selection.isNone()); - if (selection.isNone() || selection.isRange()) - return false; - selectWordAroundPosition(frame(), selection.selection().visibleStart()); - return true; -} - -void WebFrameImpl::selectRange(const WebPoint& base, const WebPoint& extent) -{ - moveRangeSelection(base, extent); -} - -void WebFrameImpl::selectRange(const WebRange& webRange) -{ - if (RefPtr<Range> range = static_cast<PassRefPtr<Range> >(webRange)) - frame()->selection().setSelectedRange(range.get(), WebCore::VP_DEFAULT_AFFINITY, false); -} - -void WebFrameImpl::moveRangeSelection(const WebPoint& base, const WebPoint& extent) -{ - VisiblePosition basePosition = visiblePositionForWindowPoint(base); - VisiblePosition extentPosition = visiblePositionForWindowPoint(extent); - VisibleSelection newSelection = VisibleSelection(basePosition, extentPosition); - frame()->selection().setSelection(newSelection, CharacterGranularity); -} - -void WebFrameImpl::moveCaretSelection(const WebPoint& point) -{ - Element* editable = frame()->selection().rootEditableElement(); - if (!editable) - return; - - VisiblePosition position = visiblePositionForWindowPoint(point); - frame()->selection().moveTo(position, UserTriggered); -} - -void WebFrameImpl::setCaretVisible(bool visible) -{ - frame()->selection().setCaretVisible(visible); -} - -VisiblePosition WebFrameImpl::visiblePositionForWindowPoint(const WebPoint& point) -{ - FloatPoint unscaledPoint(point); - unscaledPoint.scale(1 / view()->pageScaleFactor(), 1 / view()->pageScaleFactor()); - - HitTestRequest request = HitTestRequest::Move | HitTestRequest::ReadOnly | HitTestRequest::Active | HitTestRequest::IgnoreClipping | HitTestRequest::ConfusingAndOftenMisusedDisallowShadowContent; - HitTestResult result(frame()->view()->windowToContents(roundedIntPoint(unscaledPoint))); - frame()->document()->renderView()->layer()->hitTest(request, result); - - if (Node* node = result.targetNode()) - return frame()->selection().selection().visiblePositionRespectingEditingBoundary(result.localPoint(), node); - return VisiblePosition(); -} - -int WebFrameImpl::printBegin(const WebPrintParams& printParams, const WebNode& constrainToNode) -{ - ASSERT(!frame()->document()->isFrameSet()); - WebPluginContainerImpl* pluginContainer = 0; - if (constrainToNode.isNull()) { - // If this is a plugin document, check if the plugin supports its own - // printing. If it does, we will delegate all printing to that. - pluginContainer = pluginContainerFromFrame(frame()); - } else { - // We only support printing plugin nodes for now. - pluginContainer = toPluginContainerImpl(constrainToNode.pluginContainer()); - } - - if (pluginContainer && pluginContainer->supportsPaginatedPrint()) - m_printContext = adoptPtr(new ChromePluginPrintContext(frame(), pluginContainer, printParams)); - else - m_printContext = adoptPtr(new ChromePrintContext(frame())); - - FloatRect rect(0, 0, static_cast<float>(printParams.printContentArea.width), static_cast<float>(printParams.printContentArea.height)); - m_printContext->begin(rect.width(), rect.height()); - float pageHeight; - // We ignore the overlays calculation for now since they are generated in the - // browser. pageHeight is actually an output parameter. - m_printContext->computePageRects(rect, 0, 0, 1.0, pageHeight); - - return m_printContext->pageCount(); -} - -float WebFrameImpl::getPrintPageShrink(int page) -{ - ASSERT(m_printContext && page >= 0); - return m_printContext->getPageShrink(page); -} - -float WebFrameImpl::printPage(int page, WebCanvas* canvas) -{ -#if ENABLE(PRINTING) - ASSERT(m_printContext && page >= 0 && frame() && frame()->document()); - - GraphicsContext graphicsContext(canvas); - graphicsContext.setPrinting(true); - return m_printContext->spoolPage(graphicsContext, page); -#else - return 0; -#endif -} - -void WebFrameImpl::printEnd() -{ - ASSERT(m_printContext); - m_printContext->end(); - m_printContext.clear(); -} - -bool WebFrameImpl::isPrintScalingDisabledForPlugin(const WebNode& node) -{ - WebPluginContainerImpl* pluginContainer = node.isNull() ? pluginContainerFromFrame(frame()) : toPluginContainerImpl(node.pluginContainer()); - - if (!pluginContainer || !pluginContainer->supportsPaginatedPrint()) - return false; - - return pluginContainer->isPrintScalingDisabled(); -} - -bool WebFrameImpl::hasCustomPageSizeStyle(int pageIndex) -{ - return frame()->document()->styleForPage(pageIndex)->pageSizeType() != PAGE_SIZE_AUTO; -} - -bool WebFrameImpl::isPageBoxVisible(int pageIndex) -{ - return frame()->document()->isPageBoxVisible(pageIndex); -} - -void WebFrameImpl::pageSizeAndMarginsInPixels(int pageIndex, WebSize& pageSize, int& marginTop, int& marginRight, int& marginBottom, int& marginLeft) -{ - IntSize size = pageSize; - frame()->document()->pageSizeAndMarginsInPixels(pageIndex, size, marginTop, marginRight, marginBottom, marginLeft); - pageSize = size; -} - -WebString WebFrameImpl::pageProperty(const WebString& propertyName, int pageIndex) -{ - ASSERT(m_printContext); - return m_printContext->pageProperty(frame(), propertyName.utf8().data(), pageIndex); -} - -bool WebFrameImpl::find(int identifier, const WebString& searchText, const WebFindOptions& options, bool wrapWithinFrame, WebRect* selectionRect) -{ - if (!frame() || !frame()->page()) - return false; - - WebFrameImpl* mainFrameImpl = viewImpl()->mainFrameImpl(); - - if (!options.findNext) - frame()->page()->unmarkAllTextMatches(); - else - setMarkerActive(m_activeMatch.get(), false); - - if (m_activeMatch && &m_activeMatch->ownerDocument() != frame()->document()) - m_activeMatch = 0; - - // If the user has selected something since the last Find operation we want - // to start from there. Otherwise, we start searching from where the last Find - // operation left off (either a Find or a FindNext operation). - VisibleSelection selection(frame()->selection().selection()); - bool activeSelection = !selection.isNone(); - if (activeSelection) { - m_activeMatch = selection.firstRange().get(); - frame()->selection().clear(); - } - - ASSERT(frame() && frame()->view()); - const FindOptions findOptions = (options.forward ? 0 : Backwards) - | (options.matchCase ? 0 : CaseInsensitive) - | (wrapWithinFrame ? WrapAround : 0) - | (options.wordStart ? AtWordStarts : 0) - | (options.medialCapitalAsWordStart ? TreatMedialCapitalAsWordStart : 0) - | (options.findNext ? 0 : StartInSelection); - m_activeMatch = frame()->editor().findStringAndScrollToVisible(searchText, m_activeMatch.get(), findOptions); - - if (!m_activeMatch) { - // If we're finding next the next active match might not be in the current frame. - // In this case we don't want to clear the matches cache. - if (!options.findNext) - clearFindMatchesCache(); - invalidateArea(InvalidateAll); - return false; - } - -#if OS(ANDROID) - viewImpl()->zoomToFindInPageRect(frameView()->contentsToWindow(enclosingIntRect(RenderObject::absoluteBoundingBoxRectForRange(m_activeMatch.get())))); -#endif - - setMarkerActive(m_activeMatch.get(), true); - WebFrameImpl* oldActiveFrame = mainFrameImpl->m_currentActiveMatchFrame; - mainFrameImpl->m_currentActiveMatchFrame = this; - - // Make sure no node is focused. See http://crbug.com/38700. - frame()->document()->setFocusedElement(0); - - if (!options.findNext || activeSelection) { - // This is either a Find operation or a Find-next from a new start point - // due to a selection, so we set the flag to ask the scoping effort - // to find the active rect for us and report it back to the UI. - m_locatingActiveRect = true; - } else { - if (oldActiveFrame != this) { - if (options.forward) - m_activeMatchIndexInCurrentFrame = 0; - else - m_activeMatchIndexInCurrentFrame = m_lastMatchCount - 1; - } else { - if (options.forward) - ++m_activeMatchIndexInCurrentFrame; - else - --m_activeMatchIndexInCurrentFrame; - - if (m_activeMatchIndexInCurrentFrame + 1 > m_lastMatchCount) - m_activeMatchIndexInCurrentFrame = 0; - if (m_activeMatchIndexInCurrentFrame == -1) - m_activeMatchIndexInCurrentFrame = m_lastMatchCount - 1; - } - if (selectionRect) { - *selectionRect = frameView()->contentsToWindow(m_activeMatch->boundingBox()); - reportFindInPageSelection(*selectionRect, m_activeMatchIndexInCurrentFrame + 1, identifier); - } - } - - return true; -} - -void WebFrameImpl::stopFinding(bool clearSelection) -{ - if (!clearSelection) - setFindEndstateFocusAndSelection(); - cancelPendingScopingEffort(); - - // Remove all markers for matches found and turn off the highlighting. - frame()->document()->markers()->removeMarkers(DocumentMarker::TextMatch); - frame()->editor().setMarkedTextMatchesAreHighlighted(false); - clearFindMatchesCache(); - - // Let the frame know that we don't want tickmarks or highlighting anymore. - invalidateArea(InvalidateAll); -} - -void WebFrameImpl::scopeStringMatches(int identifier, const WebString& searchText, const WebFindOptions& options, bool reset) -{ - if (reset) { - // This is a brand new search, so we need to reset everything. - // Scoping is just about to begin. - m_scopingInProgress = true; - - // Need to keep the current identifier locally in order to finish the - // request in case the frame is detached during the process. - m_findRequestIdentifier = identifier; - - // Clear highlighting for this frame. - if (frame() && frame()->page() && frame()->editor().markedTextMatchesAreHighlighted()) - frame()->page()->unmarkAllTextMatches(); - - // Clear the tickmarks and results cache. - clearFindMatchesCache(); - - // Clear the counters from last operation. - m_lastMatchCount = 0; - m_nextInvalidateAfter = 0; - - m_resumeScopingFromRange = 0; - - // The view might be null on detached frames. - if (frame() && frame()->page()) - viewImpl()->mainFrameImpl()->m_framesScopingCount++; - - // Now, defer scoping until later to allow find operation to finish quickly. - scopeStringMatchesSoon(identifier, searchText, options, false); // false means just reset, so don't do it again. - return; - } - - if (!shouldScopeMatches(searchText)) { - // Note that we want to defer the final update when resetting even if shouldScopeMatches returns false. - // This is done in order to prevent sending a final message based only on the results of the first frame - // since m_framesScopingCount would be 0 as other frames have yet to reset. - finishCurrentScopingEffort(identifier); - return; - } - - WebFrameImpl* mainFrameImpl = viewImpl()->mainFrameImpl(); - RefPtr<Range> searchRange(rangeOfContents(frame()->document())); - - Node* originalEndContainer = searchRange->endContainer(); - int originalEndOffset = searchRange->endOffset(); - - TrackExceptionState exceptionState, exceptionState2; - if (m_resumeScopingFromRange) { - // This is a continuation of a scoping operation that timed out and didn't - // complete last time around, so we should start from where we left off. - searchRange->setStart(m_resumeScopingFromRange->startContainer(), m_resumeScopingFromRange->startOffset(exceptionState2) + 1, exceptionState); - if (exceptionState.hadException() || exceptionState2.hadException()) { - if (exceptionState2.hadException()) // A non-zero |exceptionState| happens when navigating during search. - ASSERT_NOT_REACHED(); - return; - } - } - - // This timeout controls how long we scope before releasing control. This - // value does not prevent us from running for longer than this, but it is - // periodically checked to see if we have exceeded our allocated time. - const double maxScopingDuration = 0.1; // seconds - - int matchCount = 0; - bool timedOut = false; - double startTime = currentTime(); - do { - // Find next occurrence of the search string. - // FIXME: (http://b/1088245) This WebKit operation may run for longer - // than the timeout value, and is not interruptible as it is currently - // written. We may need to rewrite it with interruptibility in mind, or - // find an alternative. - RefPtr<Range> resultRange(findPlainText(searchRange.get(), - searchText, - options.matchCase ? 0 : CaseInsensitive)); - if (resultRange->collapsed(exceptionState)) { - if (!resultRange->startContainer()->isInShadowTree()) - break; - - searchRange->setStartAfter( - resultRange->startContainer()->deprecatedShadowAncestorNode(), exceptionState); - searchRange->setEnd(originalEndContainer, originalEndOffset, exceptionState); - continue; - } - - ++matchCount; - - // Catch a special case where Find found something but doesn't know what - // the bounding box for it is. In this case we set the first match we find - // as the active rect. - IntRect resultBounds = resultRange->boundingBox(); - IntRect activeSelectionRect; - if (m_locatingActiveRect) { - activeSelectionRect = m_activeMatch.get() ? - m_activeMatch->boundingBox() : resultBounds; - } - - // If the Find function found a match it will have stored where the - // match was found in m_activeSelectionRect on the current frame. If we - // find this rect during scoping it means we have found the active - // tickmark. - bool foundActiveMatch = false; - if (m_locatingActiveRect && (activeSelectionRect == resultBounds)) { - // We have found the active tickmark frame. - mainFrameImpl->m_currentActiveMatchFrame = this; - foundActiveMatch = true; - // We also know which tickmark is active now. - m_activeMatchIndexInCurrentFrame = matchCount - 1; - // To stop looking for the active tickmark, we set this flag. - m_locatingActiveRect = false; - - // Notify browser of new location for the selected rectangle. - reportFindInPageSelection( - frameView()->contentsToWindow(resultBounds), - m_activeMatchIndexInCurrentFrame + 1, - identifier); - } - - addMarker(resultRange.get(), foundActiveMatch); - - m_findMatchesCache.append(FindMatch(resultRange.get(), m_lastMatchCount + matchCount)); - - // Set the new start for the search range to be the end of the previous - // result range. There is no need to use a VisiblePosition here, - // since findPlainText will use a TextIterator to go over the visible - // text nodes. - searchRange->setStart(resultRange->endContainer(exceptionState), resultRange->endOffset(exceptionState), exceptionState); - - Node* shadowTreeRoot = searchRange->shadowRoot(); - if (searchRange->collapsed(exceptionState) && shadowTreeRoot) - searchRange->setEnd(shadowTreeRoot, shadowTreeRoot->childNodeCount(), exceptionState); - - m_resumeScopingFromRange = resultRange; - timedOut = (currentTime() - startTime) >= maxScopingDuration; - } while (!timedOut); - - // Remember what we search for last time, so we can skip searching if more - // letters are added to the search string (and last outcome was 0). - m_lastSearchString = searchText; - - if (matchCount > 0) { - frame()->editor().setMarkedTextMatchesAreHighlighted(true); - - m_lastMatchCount += matchCount; - - // Let the mainframe know how much we found during this pass. - mainFrameImpl->increaseMatchCount(matchCount, identifier); - } - - if (timedOut) { - // If we found anything during this pass, we should redraw. However, we - // don't want to spam too much if the page is extremely long, so if we - // reach a certain point we start throttling the redraw requests. - if (matchCount > 0) - invalidateIfNecessary(); - - // Scoping effort ran out of time, lets ask for another time-slice. - scopeStringMatchesSoon( - identifier, - searchText, - options, - false); // don't reset. - return; // Done for now, resume work later. - } - - finishCurrentScopingEffort(identifier); -} - -void WebFrameImpl::flushCurrentScopingEffort(int identifier) -{ - if (!frame() || !frame()->page()) - return; - - WebFrameImpl* mainFrameImpl = viewImpl()->mainFrameImpl(); - - // This frame has no further scoping left, so it is done. Other frames might, - // of course, continue to scope matches. - mainFrameImpl->m_framesScopingCount--; - - // If this is the last frame to finish scoping we need to trigger the final - // update to be sent. - if (!mainFrameImpl->m_framesScopingCount) - mainFrameImpl->increaseMatchCount(0, identifier); -} - -void WebFrameImpl::finishCurrentScopingEffort(int identifier) -{ - flushCurrentScopingEffort(identifier); - - m_scopingInProgress = false; - m_lastFindRequestCompletedWithNoMatches = !m_lastMatchCount; - - // This frame is done, so show any scrollbar tickmarks we haven't drawn yet. - invalidateArea(InvalidateScrollbar); -} - -void WebFrameImpl::cancelPendingScopingEffort() -{ - deleteAllValues(m_deferredScopingWork); - m_deferredScopingWork.clear(); - - m_activeMatchIndexInCurrentFrame = -1; - - // Last request didn't complete. - if (m_scopingInProgress) - m_lastFindRequestCompletedWithNoMatches = false; - - m_scopingInProgress = false; -} - -void WebFrameImpl::increaseMatchCount(int count, int identifier) -{ - // This function should only be called on the mainframe. - ASSERT(!parent()); - - if (count) - ++m_findMatchMarkersVersion; - - m_totalMatchCount += count; - - // Update the UI with the latest findings. - if (client()) - client()->reportFindInPageMatchCount(identifier, m_totalMatchCount, !m_framesScopingCount); -} - -void WebFrameImpl::reportFindInPageSelection(const WebRect& selectionRect, int activeMatchOrdinal, int identifier) -{ - // Update the UI with the latest selection rect. - if (client()) - client()->reportFindInPageSelection(identifier, ordinalOfFirstMatchForFrame(this) + activeMatchOrdinal, selectionRect); -} - -void WebFrameImpl::resetMatchCount() -{ - if (m_totalMatchCount > 0) - ++m_findMatchMarkersVersion; - - m_totalMatchCount = 0; - m_framesScopingCount = 0; -} - -void WebFrameImpl::sendOrientationChangeEvent(int orientation) -{ -#if ENABLE(ORIENTATION_EVENTS) - if (frame()) - frame()->sendOrientationChangeEvent(orientation); -#endif -} - -void WebFrameImpl::dispatchMessageEventWithOriginCheck(const WebSecurityOrigin& intendedTargetOrigin, const WebDOMEvent& event) -{ - ASSERT(!event.isNull()); - frame()->domWindow()->dispatchMessageEventWithOriginCheck(intendedTargetOrigin.get(), event, 0); -} - -int WebFrameImpl::findMatchMarkersVersion() const -{ - ASSERT(!parent()); - return m_findMatchMarkersVersion; -} - -void WebFrameImpl::clearFindMatchesCache() -{ - if (!m_findMatchesCache.isEmpty()) - viewImpl()->mainFrameImpl()->m_findMatchMarkersVersion++; - - m_findMatchesCache.clear(); - m_findMatchRectsAreValid = false; -} - -bool WebFrameImpl::isActiveMatchFrameValid() const -{ - WebFrameImpl* mainFrameImpl = viewImpl()->mainFrameImpl(); - WebFrameImpl* activeMatchFrame = mainFrameImpl->activeMatchFrame(); - return activeMatchFrame && activeMatchFrame->m_activeMatch && activeMatchFrame->frame()->tree().isDescendantOf(mainFrameImpl->frame()); -} - -void WebFrameImpl::updateFindMatchRects() -{ - IntSize currentContentsSize = contentsSize(); - if (m_contentsSizeForCurrentFindMatchRects != currentContentsSize) { - m_contentsSizeForCurrentFindMatchRects = currentContentsSize; - m_findMatchRectsAreValid = false; - } - - size_t deadMatches = 0; - for (Vector<FindMatch>::iterator it = m_findMatchesCache.begin(); it != m_findMatchesCache.end(); ++it) { - if (!it->m_range->boundaryPointsValid() || !it->m_range->startContainer()->inDocument()) - it->m_rect = FloatRect(); - else if (!m_findMatchRectsAreValid) - it->m_rect = findInPageRectFromRange(it->m_range.get()); - - if (it->m_rect.isEmpty()) - ++deadMatches; - } - - // Remove any invalid matches from the cache. - if (deadMatches) { - Vector<FindMatch> filteredMatches; - filteredMatches.reserveCapacity(m_findMatchesCache.size() - deadMatches); - - for (Vector<FindMatch>::const_iterator it = m_findMatchesCache.begin(); it != m_findMatchesCache.end(); ++it) - if (!it->m_rect.isEmpty()) - filteredMatches.append(*it); - - m_findMatchesCache.swap(filteredMatches); - } - - // Invalidate the rects in child frames. Will be updated later during traversal. - if (!m_findMatchRectsAreValid) - for (WebFrame* child = firstChild(); child; child = child->nextSibling()) - toWebFrameImpl(child)->m_findMatchRectsAreValid = false; - - m_findMatchRectsAreValid = true; -} - -WebFloatRect WebFrameImpl::activeFindMatchRect() -{ - ASSERT(!parent()); - - if (!isActiveMatchFrameValid()) - return WebFloatRect(); - - return WebFloatRect(findInPageRectFromRange(m_currentActiveMatchFrame->m_activeMatch.get())); -} - -void WebFrameImpl::findMatchRects(WebVector<WebFloatRect>& outputRects) -{ - ASSERT(!parent()); - - Vector<WebFloatRect> matchRects; - for (WebFrameImpl* frame = this; frame; frame = toWebFrameImpl(frame->traverseNext(false))) - frame->appendFindMatchRects(matchRects); - - outputRects = matchRects; -} - -void WebFrameImpl::appendFindMatchRects(Vector<WebFloatRect>& frameRects) -{ - updateFindMatchRects(); - frameRects.reserveCapacity(frameRects.size() + m_findMatchesCache.size()); - for (Vector<FindMatch>::const_iterator it = m_findMatchesCache.begin(); it != m_findMatchesCache.end(); ++it) { - ASSERT(!it->m_rect.isEmpty()); - frameRects.append(it->m_rect); - } -} - -int WebFrameImpl::selectNearestFindMatch(const WebFloatPoint& point, WebRect* selectionRect) -{ - ASSERT(!parent()); - - WebFrameImpl* bestFrame = 0; - int indexInBestFrame = -1; - float distanceInBestFrame = FLT_MAX; - - for (WebFrameImpl* frame = this; frame; frame = toWebFrameImpl(frame->traverseNext(false))) { - float distanceInFrame; - int indexInFrame = frame->nearestFindMatch(point, distanceInFrame); - if (distanceInFrame < distanceInBestFrame) { - bestFrame = frame; - indexInBestFrame = indexInFrame; - distanceInBestFrame = distanceInFrame; - } - } - - if (indexInBestFrame != -1) - return bestFrame->selectFindMatch(static_cast<unsigned>(indexInBestFrame), selectionRect); - - return -1; -} - -int WebFrameImpl::nearestFindMatch(const FloatPoint& point, float& distanceSquared) -{ - updateFindMatchRects(); - - int nearest = -1; - distanceSquared = FLT_MAX; - for (size_t i = 0; i < m_findMatchesCache.size(); ++i) { - ASSERT(!m_findMatchesCache[i].m_rect.isEmpty()); - FloatSize offset = point - m_findMatchesCache[i].m_rect.center(); - float width = offset.width(); - float height = offset.height(); - float currentDistanceSquared = width * width + height * height; - if (currentDistanceSquared < distanceSquared) { - nearest = i; - distanceSquared = currentDistanceSquared; - } - } - return nearest; -} - -int WebFrameImpl::selectFindMatch(unsigned index, WebRect* selectionRect) -{ - ASSERT_WITH_SECURITY_IMPLICATION(index < m_findMatchesCache.size()); - - RefPtr<Range> range = m_findMatchesCache[index].m_range; - if (!range->boundaryPointsValid() || !range->startContainer()->inDocument()) - return -1; - - // Check if the match is already selected. - WebFrameImpl* activeMatchFrame = viewImpl()->mainFrameImpl()->m_currentActiveMatchFrame; - if (this != activeMatchFrame || !m_activeMatch || !areRangesEqual(m_activeMatch.get(), range.get())) { - if (isActiveMatchFrameValid()) - activeMatchFrame->setMarkerActive(activeMatchFrame->m_activeMatch.get(), false); - - m_activeMatchIndexInCurrentFrame = m_findMatchesCache[index].m_ordinal - 1; - - // Set this frame as the active frame (the one with the active highlight). - viewImpl()->mainFrameImpl()->m_currentActiveMatchFrame = this; - viewImpl()->setFocusedFrame(this); - - m_activeMatch = range.release(); - setMarkerActive(m_activeMatch.get(), true); - - // Clear any user selection, to make sure Find Next continues on from the match we just activated. - frame()->selection().clear(); - - // Make sure no node is focused. See http://crbug.com/38700. - frame()->document()->setFocusedElement(0); - } - - IntRect activeMatchRect; - IntRect activeMatchBoundingBox = enclosingIntRect(RenderObject::absoluteBoundingBoxRectForRange(m_activeMatch.get())); - - if (!activeMatchBoundingBox.isEmpty()) { - if (m_activeMatch->firstNode() && m_activeMatch->firstNode()->renderer()) - m_activeMatch->firstNode()->renderer()->scrollRectToVisible(activeMatchBoundingBox, - ScrollAlignment::alignCenterIfNeeded, ScrollAlignment::alignCenterIfNeeded); - - // Zoom to the active match. - activeMatchRect = frameView()->contentsToWindow(activeMatchBoundingBox); - viewImpl()->zoomToFindInPageRect(activeMatchRect); - } - - if (selectionRect) - *selectionRect = activeMatchRect; - - return ordinalOfFirstMatchForFrame(this) + m_activeMatchIndexInCurrentFrame + 1; -} - -WebString WebFrameImpl::contentAsText(size_t maxChars) const -{ - if (!frame()) - return WebString(); - StringBuilder text; - frameContentAsPlainText(maxChars, frame(), text); - return text.toString(); -} - -WebString WebFrameImpl::contentAsMarkup() const -{ - if (!frame()) - return WebString(); - return createFullMarkup(frame()->document()); -} - -WebString WebFrameImpl::renderTreeAsText(RenderAsTextControls toShow) const -{ - RenderAsTextBehavior behavior = RenderAsTextBehaviorNormal; - - if (toShow & RenderAsTextDebug) - behavior |= RenderAsTextShowCompositedLayers | RenderAsTextShowAddresses | RenderAsTextShowIDAndClass | RenderAsTextShowLayerNesting; - - if (toShow & RenderAsTextPrinting) - behavior |= RenderAsTextPrintingMode; - - return externalRepresentation(frame(), behavior); -} - -WebString WebFrameImpl::markerTextForListItem(const WebElement& webElement) const -{ - return WebCore::markerTextForListItem(const_cast<Element*>(webElement.constUnwrap<Element>())); -} - -void WebFrameImpl::printPagesWithBoundaries(WebCanvas* canvas, const WebSize& pageSizeInPixels) -{ - ASSERT(m_printContext); - - GraphicsContext graphicsContext(canvas); - graphicsContext.setPrinting(true); - - m_printContext->spoolAllPagesWithBoundaries(graphicsContext, FloatSize(pageSizeInPixels.width, pageSizeInPixels.height)); -} - -WebRect WebFrameImpl::selectionBoundsRect() const -{ - return hasSelection() ? WebRect(IntRect(frame()->selection().bounds(false))) : WebRect(); -} - -bool WebFrameImpl::selectionStartHasSpellingMarkerFor(int from, int length) const -{ - if (!frame()) - return false; - return frame()->spellChecker().selectionStartHasMarkerFor(DocumentMarker::Spelling, from, length); -} - -WebString WebFrameImpl::layerTreeAsText(bool showDebugInfo) const -{ - if (!frame()) - return WebString(); - - return WebString(frame()->layerTreeAsText(showDebugInfo ? LayerTreeIncludesDebugInfo : LayerTreeNormal)); -} - -// WebFrameImpl public --------------------------------------------------------- - -WebFrame* WebFrame::create(WebFrameClient* client) -{ - return WebFrameImpl::create(client); -} - -WebFrame* WebFrame::create(WebFrameClient* client, long long embedderIdentifier) -{ - return WebFrameImpl::create(client, embedderIdentifier); -} - -long long WebFrame::generateEmbedderIdentifier() -{ - static long long next = 0; - // Assume that 64-bit will not wrap to -1. - return ++next; -} - -WebFrameImpl* WebFrameImpl::create(WebFrameClient* client) -{ - return WebFrameImpl::create(client, generateEmbedderIdentifier()); -} - -WebFrameImpl* WebFrameImpl::create(WebFrameClient* client, long long embedderIdentifier) -{ - return adoptRef(new WebFrameImpl(client, embedderIdentifier)).leakRef(); -} - -WebFrameImpl::WebFrameImpl(WebFrameClient* client, long long embedderIdentifier) - : FrameDestructionObserver(0) - , m_frameInit(WebFrameInit::create(this, embedderIdentifier)) - , m_client(client) - , m_permissionClient(0) - , m_currentActiveMatchFrame(0) - , m_activeMatchIndexInCurrentFrame(-1) - , m_locatingActiveRect(false) - , m_resumeScopingFromRange(0) - , m_lastMatchCount(-1) - , m_totalMatchCount(-1) - , m_framesScopingCount(-1) - , m_findRequestIdentifier(-1) - , m_scopingInProgress(false) - , m_lastFindRequestCompletedWithNoMatches(false) - , m_nextInvalidateAfter(0) - , m_findMatchMarkersVersion(0) - , m_findMatchRectsAreValid(false) - , m_inputEventsScaleFactorForEmulation(1) -{ - blink::Platform::current()->incrementStatsCounter(webFrameActiveCount); - frameCount++; -} - -WebFrameImpl::~WebFrameImpl() -{ - blink::Platform::current()->decrementStatsCounter(webFrameActiveCount); - frameCount--; - - cancelPendingScopingEffort(); -} - -void WebFrameImpl::setWebCoreFrame(WebCore::Frame* frame) -{ - ASSERT(frame); - observeFrame(frame); -} - -void WebFrameImpl::initializeAsMainFrame(WebCore::Page* page) -{ - m_frameInit->setPage(page); - RefPtr<Frame> mainFrame = Frame::create(m_frameInit); - setWebCoreFrame(mainFrame.get()); - - // Add reference on behalf of FrameLoader. See comments in - // WebFrameLoaderClient::frameLoaderDestroyed for more info. - ref(); - - // We must call init() after m_frame is assigned because it is referenced - // during init(). - frame()->init(); -} - -PassRefPtr<Frame> WebFrameImpl::createChildFrame(const FrameLoadRequest& request, HTMLFrameOwnerElement* ownerElement) -{ - ASSERT(m_client); - WebFrameImpl* webframe = toWebFrameImpl(m_client->createChildFrame(this, request.frameName())); - - // If the embedder is returning 0 from createChildFrame(), it has not been - // updated to the new ownership semantics where the embedder creates the - // WebFrame. In that case, fall back to the old logic where the - // WebFrameImpl is created here and published back to the embedder. To - // bridge between the two ownership semantics, webframeLifetimeHack is - // needeed to balance out the refcounting. - // - // FIXME: Remove once all embedders return non-null from createChildFrame(). - RefPtr<WebFrameImpl> webframeLifetimeHack; - bool mustCallDidCreateFrame = false; - if (!webframe) { - mustCallDidCreateFrame = true; - webframeLifetimeHack = adoptRef(WebFrameImpl::create(m_client)); - webframe = webframeLifetimeHack.get(); - } - - // Add an extra ref on behalf of the page/FrameLoader, which references the - // WebFrame via the FrameLoaderClient interface. See the comment at the top - // of this file for more info. - webframe->ref(); - - webframe->m_frameInit->setPage(frame()->page()); - webframe->m_frameInit->setOwnerElement(ownerElement); - RefPtr<Frame> childFrame = Frame::create(webframe->m_frameInit); - webframe->setWebCoreFrame(childFrame.get()); - - childFrame->tree().setName(request.frameName()); - - frame()->tree().appendChild(childFrame); - - // FIXME: Remove once all embedders return non-null from createChildFrame(). - if (mustCallDidCreateFrame) - m_client->didCreateFrame(this, webframe); - - // Frame::init() can trigger onload event in the parent frame, - // which may detach this frame and trigger a null-pointer access - // in FrameTree::removeChild. Move init() after appendChild call - // so that webframe->mFrame is in the tree before triggering - // onload event handler. - // Because the event handler may set webframe->mFrame to null, - // it is necessary to check the value after calling init() and - // return without loading URL. - // NOTE: m_client will be null if this frame has been detached. - // (b:791612) - childFrame->init(); // create an empty document - if (!childFrame->tree().parent()) - return 0; - - // If we're moving in the back/forward list, we might want to replace the content - // of this child frame with whatever was there at that point. - HistoryItem* childItem = 0; - if (isBackForwardLoadType(frame()->loader().loadType()) && !frame()->document()->loadEventFinished()) - childItem = frame()->page()->historyController().itemForNewChildFrame(childFrame.get()); - - if (childItem) - childFrame->loader().loadHistoryItem(childItem); - else - childFrame->loader().load(FrameLoadRequest(0, request.resourceRequest(), "_self")); - - // A synchronous navigation (about:blank) would have already processed - // onload, so it is possible for the frame to have already been destroyed by - // script in the page. - // NOTE: m_client will be null if this frame has been detached. - if (!childFrame->tree().parent()) - return 0; - - return childFrame.release(); -} - -void WebFrameImpl::didChangeContentsSize(const IntSize& size) -{ - // This is only possible on the main frame. - if (m_totalMatchCount > 0) { - ASSERT(!parent()); - ++m_findMatchMarkersVersion; - } -} - -void WebFrameImpl::createFrameView() -{ - TRACE_EVENT0("webkit", "WebFrameImpl::createFrameView"); - - ASSERT(frame()); // If frame() doesn't exist, we probably didn't init properly. - - WebViewImpl* webView = viewImpl(); - bool isMainFrame = webView->mainFrameImpl()->frame() == frame(); - if (isMainFrame) - webView->suppressInvalidations(true); - - frame()->createView(webView->size(), webView->baseBackgroundColor(), webView->isTransparent()); - if (webView->shouldAutoResize() && isMainFrame) - frame()->view()->enableAutoSizeMode(true, webView->minAutoSize(), webView->maxAutoSize()); - - frame()->view()->setInputEventsTransformForEmulation(m_inputEventsOffsetForEmulation, m_inputEventsScaleFactorForEmulation); - - if (isMainFrame) - webView->suppressInvalidations(false); -} - -WebFrameImpl* WebFrameImpl::fromFrame(Frame* frame) -{ - if (!frame) - return 0; - return toFrameLoaderClientImpl(frame->loader().client())->webFrame(); -} - -WebFrameImpl* WebFrameImpl::fromFrameOwnerElement(Element* element) -{ - // FIXME: Why do we check specifically for <iframe> and <frame> here? Why can't we get the WebFrameImpl from an <object> element, for example. - if (!element || !element->isFrameOwnerElement() || (!element->hasTagName(HTMLNames::iframeTag) && !element->hasTagName(HTMLNames::frameTag))) - return 0; - return fromFrame(toHTMLFrameOwnerElement(element)->contentFrame()); -} - -WebViewImpl* WebFrameImpl::viewImpl() const -{ - if (!frame()) - return 0; - return WebViewImpl::fromPage(frame()->page()); -} - -WebDataSourceImpl* WebFrameImpl::dataSourceImpl() const -{ - return static_cast<WebDataSourceImpl*>(dataSource()); -} - -WebDataSourceImpl* WebFrameImpl::provisionalDataSourceImpl() const -{ - return static_cast<WebDataSourceImpl*>(provisionalDataSource()); -} - -void WebFrameImpl::setFindEndstateFocusAndSelection() -{ - WebFrameImpl* mainFrameImpl = viewImpl()->mainFrameImpl(); - - if (this == mainFrameImpl->activeMatchFrame() && m_activeMatch.get()) { - // If the user has set the selection since the match was found, we - // don't focus anything. - VisibleSelection selection(frame()->selection().selection()); - if (!selection.isNone()) - return; - - // Try to find the first focusable node up the chain, which will, for - // example, focus links if we have found text within the link. - Node* node = m_activeMatch->firstNode(); - if (node && node->isInShadowTree()) { - Node* host = node->deprecatedShadowAncestorNode(); - if (host->hasTagName(HTMLNames::inputTag) || isHTMLTextAreaElement(host)) - node = host; - } - for (; node; node = node->parentNode()) { - if (!node->isElementNode()) - continue; - Element* element = toElement(node); - if (element->isFocusable()) { - // Found a focusable parent node. Set the active match as the - // selection and focus to the focusable node. - frame()->selection().setSelection(m_activeMatch.get()); - frame()->document()->setFocusedElement(element); - return; - } - } - - // Iterate over all the nodes in the range until we find a focusable node. - // This, for example, sets focus to the first link if you search for - // text and text that is within one or more links. - node = m_activeMatch->firstNode(); - for (; node && node != m_activeMatch->pastLastNode(); node = NodeTraversal::next(*node)) { - if (!node->isElementNode()) - continue; - Element* element = toElement(node); - if (element->isFocusable()) { - frame()->document()->setFocusedElement(element); - return; - } - } - - // No node related to the active match was focusable, so set the - // active match as the selection (so that when you end the Find session, - // you'll have the last thing you found highlighted) and make sure that - // we have nothing focused (otherwise you might have text selected but - // a link focused, which is weird). - frame()->selection().setSelection(m_activeMatch.get()); - frame()->document()->setFocusedElement(0); - - // Finally clear the active match, for two reasons: - // We just finished the find 'session' and we don't want future (potentially - // unrelated) find 'sessions' operations to start at the same place. - // The WebFrameImpl could get reused and the m_activeMatch could end up pointing - // to a document that is no longer valid. Keeping an invalid reference around - // is just asking for trouble. - m_activeMatch = 0; - } -} - -void WebFrameImpl::didFail(const ResourceError& error, bool wasProvisional) -{ - if (!client()) - return; - WebURLError webError = error; - if (wasProvisional) - client()->didFailProvisionalLoad(this, webError); - else - client()->didFailLoad(this, webError); -} - -void WebFrameImpl::setCanHaveScrollbars(bool canHaveScrollbars) -{ - frame()->view()->setCanHaveScrollbars(canHaveScrollbars); -} - -void WebFrameImpl::setInputEventsTransformForEmulation(const IntSize& offset, float contentScaleFactor) -{ - m_inputEventsOffsetForEmulation = offset; - m_inputEventsScaleFactorForEmulation = contentScaleFactor; - if (frame()->view()) - frame()->view()->setInputEventsTransformForEmulation(m_inputEventsOffsetForEmulation, m_inputEventsScaleFactorForEmulation); -} - -void WebFrameImpl::invalidateArea(AreaToInvalidate area) -{ - ASSERT(frame() && frame()->view()); - FrameView* view = frame()->view(); - - if ((area & InvalidateAll) == InvalidateAll) - view->invalidateRect(view->frameRect()); - else { - if ((area & InvalidateContentArea) == InvalidateContentArea) { - IntRect contentArea( - view->x(), view->y(), view->visibleWidth(), view->visibleHeight()); - IntRect frameRect = view->frameRect(); - contentArea.move(-frameRect.x(), -frameRect.y()); - view->invalidateRect(contentArea); - } - } - - if ((area & InvalidateScrollbar) == InvalidateScrollbar) { - // Invalidate the vertical scroll bar region for the view. - Scrollbar* scrollbar = view->verticalScrollbar(); - if (scrollbar) - scrollbar->invalidate(); - } -} - -void WebFrameImpl::addMarker(Range* range, bool activeMatch) -{ - frame()->document()->markers()->addTextMatchMarker(range, activeMatch); -} - -void WebFrameImpl::setMarkerActive(Range* range, bool active) -{ - if (!range || range->collapsed(IGNORE_EXCEPTION)) - return; - frame()->document()->markers()->setMarkersActive(range, active); -} - -int WebFrameImpl::ordinalOfFirstMatchForFrame(WebFrameImpl* frame) const -{ - int ordinal = 0; - WebFrameImpl* mainFrameImpl = viewImpl()->mainFrameImpl(); - // Iterate from the main frame up to (but not including) |frame| and - // add up the number of matches found so far. - for (WebFrameImpl* it = mainFrameImpl; it != frame; it = toWebFrameImpl(it->traverseNext(true))) { - if (it->m_lastMatchCount > 0) - ordinal += it->m_lastMatchCount; - } - return ordinal; -} - -bool WebFrameImpl::shouldScopeMatches(const String& searchText) -{ - // Don't scope if we can't find a frame or a view. - // The user may have closed the tab/application, so abort. - // Also ignore detached frames, as many find operations report to the main frame. - if (!frame() || !frame()->view() || !frame()->page() || !hasVisibleContent()) - return false; - - ASSERT(frame()->document() && frame()->view()); - - // If the frame completed the scoping operation and found 0 matches the last - // time it was searched, then we don't have to search it again if the user is - // just adding to the search string or sending the same search string again. - if (m_lastFindRequestCompletedWithNoMatches && !m_lastSearchString.isEmpty()) { - // Check to see if the search string prefixes match. - String previousSearchPrefix = - searchText.substring(0, m_lastSearchString.length()); - - if (previousSearchPrefix == m_lastSearchString) - return false; // Don't search this frame, it will be fruitless. - } - - return true; -} - -void WebFrameImpl::scopeStringMatchesSoon(int identifier, const WebString& searchText, const WebFindOptions& options, bool reset) -{ - m_deferredScopingWork.append(new DeferredScopeStringMatches(this, identifier, searchText, options, reset)); -} - -void WebFrameImpl::callScopeStringMatches(DeferredScopeStringMatches* caller, int identifier, const WebString& searchText, const WebFindOptions& options, bool reset) -{ - m_deferredScopingWork.remove(m_deferredScopingWork.find(caller)); - scopeStringMatches(identifier, searchText, options, reset); - - // This needs to happen last since searchText is passed by reference. - delete caller; -} - -void WebFrameImpl::invalidateIfNecessary() -{ - if (m_lastMatchCount <= m_nextInvalidateAfter) - return; - - // FIXME: (http://b/1088165) Optimize the drawing of the tickmarks and - // remove this. This calculation sets a milestone for when next to - // invalidate the scrollbar and the content area. We do this so that we - // don't spend too much time drawing the scrollbar over and over again. - // Basically, up until the first 500 matches there is no throttle. - // After the first 500 matches, we set set the milestone further and - // further out (750, 1125, 1688, 2K, 3K). - static const int startSlowingDownAfter = 500; - static const int slowdown = 750; - - int i = m_lastMatchCount / startSlowingDownAfter; - m_nextInvalidateAfter += i * slowdown; - invalidateArea(InvalidateScrollbar); -} - -void WebFrameImpl::loadJavaScriptURL(const KURL& url) -{ - // This is copied from ScriptController::executeScriptIfJavaScriptURL. - // Unfortunately, we cannot just use that method since it is private, and - // it also doesn't quite behave as we require it to for bookmarklets. The - // key difference is that we need to suppress loading the string result - // from evaluating the JS URL if executing the JS URL resulted in a - // location change. We also allow a JS URL to be loaded even if scripts on - // the page are otherwise disabled. - - if (!frame()->document() || !frame()->page()) - return; - - RefPtr<Document> ownerDocument(frame()->document()); - - // Protect privileged pages against bookmarklets and other javascript manipulations. - if (SchemeRegistry::shouldTreatURLSchemeAsNotAllowingJavascriptURLs(frame()->document()->url().protocol())) - return; - - String script = decodeURLEscapeSequences(url.string().substring(strlen("javascript:"))); - UserGestureIndicator gestureIndicator(DefinitelyProcessingNewUserGesture); - ScriptValue result = frame()->script().executeScriptInMainWorldAndReturnValue(ScriptSourceCode(script)); - - String scriptResult; - if (!result.getString(scriptResult)) - return; - - if (!frame()->navigationScheduler().locationChangePending()) - frame()->document()->loader()->replaceDocument(scriptResult, ownerDocument.get()); -} - -void WebFrameImpl::willDetachPage() -{ - if (!frame() || !frame()->page()) - return; - - // Do not expect string scoping results from any frames that got detached - // in the middle of the operation. - if (m_scopingInProgress) { - - // There is a possibility that the frame being detached was the only - // pending one. We need to make sure final replies can be sent. - flushCurrentScopingEffort(m_findRequestIdentifier); - - cancelPendingScopingEffort(); - } -} - -} // namespace blink |