/*
* 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