| /* |
| * Copyright (C) 1999 Lars Knoll ([email protected]) |
| * (C) 2000 Simon Hausmann <[email protected]> |
| * (C) 2000 Stefan Schimanski ([email protected]) |
| * Copyright (C) 2004, 2005, 2006, 2008, 2009 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "config.h" |
| #include "RenderPartObject.h" |
| |
| #include "Frame.h" |
| #include "FrameLoaderClient.h" |
| #include "HTMLEmbedElement.h" |
| #include "HTMLIFrameElement.h" |
| #include "HTMLNames.h" |
| #include "HTMLObjectElement.h" |
| #include "HTMLParamElement.h" |
| #include "MIMETypeRegistry.h" |
| #include "Page.h" |
| #include "RenderView.h" |
| #include "RenderWidgetProtector.h" |
| #include "Text.h" |
| |
| #if ENABLE(PLUGIN_PROXY_FOR_VIDEO) |
| #include "HTMLVideoElement.h" |
| #endif |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| RenderPartObject::RenderPartObject(Element* element) |
| : RenderPart(element) |
| { |
| // init RenderObject attributes |
| setInline(true); |
| m_hasFallbackContent = false; |
| |
| if (element->hasTagName(embedTag) || element->hasTagName(objectTag)) |
| view()->frameView()->setIsVisuallyNonEmpty(); |
| } |
| |
| RenderPartObject::~RenderPartObject() |
| { |
| if (frameView()) |
| frameView()->removeWidgetToUpdate(this); |
| } |
| |
| static bool isURLAllowed(Document* doc, const String& url) |
| { |
| if (doc->frame()->page()->frameCount() >= 200) |
| return false; |
| |
| // We allow one level of self-reference because some sites depend on that. |
| // But we don't allow more than one. |
| KURL completeURL = doc->completeURL(url); |
| bool foundSelfReference = false; |
| for (Frame* frame = doc->frame(); frame; frame = frame->tree()->parent()) { |
| if (equalIgnoringFragmentIdentifier(frame->loader()->url(), completeURL)) { |
| if (foundSelfReference) |
| return false; |
| foundSelfReference = true; |
| } |
| } |
| return true; |
| } |
| |
| typedef HashMap<String, String, CaseFoldingHash> ClassIdToTypeMap; |
| |
| static ClassIdToTypeMap* createClassIdToTypeMap() |
| { |
| ClassIdToTypeMap* map = new ClassIdToTypeMap; |
| map->add("clsid:D27CDB6E-AE6D-11CF-96B8-444553540000", "application/x-shockwave-flash"); |
| map->add("clsid:CFCDAA03-8BE4-11CF-B84B-0020AFBBCCFA", "audio/x-pn-realaudio-plugin"); |
| map->add("clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B", "video/quicktime"); |
| map->add("clsid:166B1BCA-3F9C-11CF-8075-444553540000", "application/x-director"); |
| map->add("clsid:6BF52A52-394A-11D3-B153-00C04F79FAA6", "application/x-mplayer2"); |
| map->add("clsid:22D6F312-B0F6-11D0-94AB-0080C74C7E95", "application/x-mplayer2"); |
| return map; |
| } |
| |
| static String serviceTypeForClassId(const String& classId) |
| { |
| // Return early if classId is empty (since we won't do anything below). |
| // Furthermore, if classId is null, calling get() below will crash. |
| if (classId.isEmpty()) |
| return String(); |
| |
| static ClassIdToTypeMap* map = createClassIdToTypeMap(); |
| return map->get(classId); |
| } |
| |
| static void mapDataParamToSrc(Vector<String>* paramNames, Vector<String>* paramValues) |
| { |
| // Some plugins don't understand the "data" attribute of the OBJECT tag (i.e. Real and WMP |
| // require "src" attribute). |
| int srcIndex = -1, dataIndex = -1; |
| for (unsigned int i = 0; i < paramNames->size(); ++i) { |
| if (equalIgnoringCase((*paramNames)[i], "src")) |
| srcIndex = i; |
| else if (equalIgnoringCase((*paramNames)[i], "data")) |
| dataIndex = i; |
| } |
| |
| if (srcIndex == -1 && dataIndex != -1) { |
| paramNames->append("src"); |
| paramValues->append((*paramValues)[dataIndex]); |
| } |
| } |
| |
| void RenderPartObject::updateWidget(bool onlyCreateNonNetscapePlugins) |
| { |
| String url; |
| String serviceType; |
| Vector<String> paramNames; |
| Vector<String> paramValues; |
| Frame* frame = frameView()->frame(); |
| |
| // The calls to FrameLoader::requestObject within this function can result in a plug-in being initialized. |
| // This can run cause arbitrary JavaScript to run and may result in this RenderObject being detached from |
| // the render tree and destroyed, causing a crash like <rdar://problem/6954546>. By extending our lifetime |
| // artifically to ensure that we remain alive for the duration of plug-in initialization. |
| RenderWidgetProtector protector(this); |
| |
| if (node()->hasTagName(objectTag)) { |
| HTMLObjectElement* o = static_cast<HTMLObjectElement*>(node()); |
| |
| o->setNeedWidgetUpdate(false); |
| if (!o->isFinishedParsingChildren()) |
| return; |
| |
| // Check for a child EMBED tag. |
| HTMLEmbedElement* embed = 0; |
| for (Node* child = o->firstChild(); child; ) { |
| if (child->hasTagName(embedTag)) { |
| embed = static_cast<HTMLEmbedElement*>(child); |
| break; |
| } else if (child->hasTagName(objectTag)) |
| child = child->nextSibling(); // Don't descend into nested OBJECT tags |
| else |
| child = child->traverseNextNode(o); // Otherwise descend (EMBEDs may be inside COMMENT tags) |
| } |
| |
| // Use the attributes from the EMBED tag instead of the OBJECT tag including WIDTH and HEIGHT. |
| HTMLElement *embedOrObject; |
| if (embed) { |
| embedOrObject = (HTMLElement *)embed; |
| url = embed->url(); |
| serviceType = embed->serviceType(); |
| } else |
| embedOrObject = (HTMLElement *)o; |
| |
| // If there was no URL or type defined in EMBED, try the OBJECT tag. |
| if (url.isEmpty()) |
| url = o->url(); |
| if (serviceType.isEmpty()) |
| serviceType = o->serviceType(); |
| |
| HashSet<StringImpl*, CaseFoldingHash> uniqueParamNames; |
| |
| // Scan the PARAM children. |
| // Get the URL and type from the params if we don't already have them. |
| // Get the attributes from the params if there is no EMBED tag. |
| Node *child = o->firstChild(); |
| while (child && (url.isEmpty() || serviceType.isEmpty() || !embed)) { |
| if (child->hasTagName(paramTag)) { |
| HTMLParamElement* p = static_cast<HTMLParamElement*>(child); |
| String name = p->name(); |
| if (url.isEmpty() && (equalIgnoringCase(name, "src") || equalIgnoringCase(name, "movie") || equalIgnoringCase(name, "code") || equalIgnoringCase(name, "url"))) |
| url = p->value(); |
| if (serviceType.isEmpty() && equalIgnoringCase(name, "type")) { |
| serviceType = p->value(); |
| int pos = serviceType.find(";"); |
| if (pos != -1) |
| serviceType = serviceType.left(pos); |
| } |
| if (!embed && !name.isEmpty()) { |
| uniqueParamNames.add(name.impl()); |
| paramNames.append(p->name()); |
| paramValues.append(p->value()); |
| } |
| } |
| child = child->nextSibling(); |
| } |
| |
| // When OBJECT is used for an applet via Sun's Java plugin, the CODEBASE attribute in the tag |
| // points to the Java plugin itself (an ActiveX component) while the actual applet CODEBASE is |
| // in a PARAM tag. See <http://java.sun.com/products/plugin/1.2/docs/tags.html>. This means |
| // we have to explicitly suppress the tag's CODEBASE attribute if there is none in a PARAM, |
| // else our Java plugin will misinterpret it. [4004531] |
| String codebase; |
| if (!embed && MIMETypeRegistry::isJavaAppletMIMEType(serviceType)) { |
| codebase = "codebase"; |
| uniqueParamNames.add(codebase.impl()); // pretend we found it in a PARAM already |
| } |
| |
| // Turn the attributes of either the EMBED tag or OBJECT tag into arrays, but don't override PARAM values. |
| NamedNodeMap* attributes = embedOrObject->attributes(); |
| if (attributes) { |
| for (unsigned i = 0; i < attributes->length(); ++i) { |
| Attribute* it = attributes->attributeItem(i); |
| const AtomicString& name = it->name().localName(); |
| if (embed || !uniqueParamNames.contains(name.impl())) { |
| paramNames.append(name.string()); |
| paramValues.append(it->value().string()); |
| } |
| } |
| } |
| |
| mapDataParamToSrc(¶mNames, ¶mValues); |
| |
| // If we still don't have a type, try to map from a specific CLASSID to a type. |
| if (serviceType.isEmpty()) |
| serviceType = serviceTypeForClassId(o->classId()); |
| |
| if (!isURLAllowed(document(), url)) |
| return; |
| |
| // Find out if we support fallback content. |
| m_hasFallbackContent = false; |
| for (Node *child = o->firstChild(); child && !m_hasFallbackContent; child = child->nextSibling()) { |
| if ((!child->isTextNode() && !child->hasTagName(embedTag) && !child->hasTagName(paramTag)) || // Discount <embed> and <param> |
| (child->isTextNode() && !static_cast<Text*>(child)->containsOnlyWhitespace())) |
| m_hasFallbackContent = true; |
| } |
| |
| if (onlyCreateNonNetscapePlugins) { |
| KURL completedURL; |
| if (!url.isEmpty()) |
| completedURL = frame->loader()->completeURL(url); |
| |
| if (frame->loader()->client()->objectContentType(completedURL, serviceType) == ObjectContentNetscapePlugin) |
| return; |
| } |
| |
| bool success = o->dispatchBeforeLoadEvent(url) && |
| frame->loader()->requestObject(this, url, o->getAttribute(nameAttr), serviceType, paramNames, paramValues); |
| if (!success && m_hasFallbackContent) |
| o->renderFallbackContent(); |
| } else if (node()->hasTagName(embedTag)) { |
| HTMLEmbedElement *o = static_cast<HTMLEmbedElement*>(node()); |
| o->setNeedWidgetUpdate(false); |
| url = o->url(); |
| serviceType = o->serviceType(); |
| |
| if (url.isEmpty() && serviceType.isEmpty()) |
| return; |
| if (!isURLAllowed(document(), url)) |
| return; |
| |
| // add all attributes set on the embed object |
| NamedNodeMap* a = o->attributes(); |
| if (a) { |
| for (unsigned i = 0; i < a->length(); ++i) { |
| Attribute* it = a->attributeItem(i); |
| paramNames.append(it->name().localName().string()); |
| paramValues.append(it->value().string()); |
| } |
| } |
| |
| if (onlyCreateNonNetscapePlugins) { |
| KURL completedURL; |
| if (!url.isEmpty()) |
| completedURL = frame->loader()->completeURL(url); |
| |
| if (frame->loader()->client()->objectContentType(completedURL, serviceType) == ObjectContentNetscapePlugin) |
| return; |
| |
| } |
| |
| if (o->dispatchBeforeLoadEvent(url)) |
| frame->loader()->requestObject(this, url, o->getAttribute(nameAttr), serviceType, paramNames, paramValues); |
| } |
| #if ENABLE(PLUGIN_PROXY_FOR_VIDEO) |
| else if (node()->hasTagName(videoTag) || node()->hasTagName(audioTag)) { |
| HTMLMediaElement* o = static_cast<HTMLMediaElement*>(node()); |
| |
| o->setNeedWidgetUpdate(false); |
| if (node()->hasTagName(videoTag)) { |
| HTMLVideoElement* vid = static_cast<HTMLVideoElement*>(node()); |
| String poster = vid->poster(); |
| if (!poster.isEmpty()) { |
| paramNames.append("_media_element_poster_"); |
| paramValues.append(poster); |
| } |
| } |
| |
| url = o->initialURL(); |
| if (!url.isEmpty()) { |
| paramNames.append("_media_element_src_"); |
| paramValues.append(url); |
| } |
| |
| serviceType = "application/x-media-element-proxy-plugin"; |
| |
| if (o->dispatchBeforeLoadEvent(url)) |
| frame->loader()->requestObject(this, url, nullAtom, serviceType, paramNames, paramValues); |
| } |
| #endif |
| } |
| |
| void RenderPartObject::layout() |
| { |
| ASSERT(needsLayout()); |
| |
| #ifdef FLATTEN_IFRAME |
| RenderPart::calcWidth(); |
| RenderPart::calcHeight(); |
| // Some IFrames have a width and/or height of 1 when they are meant to be |
| // hidden. If that is the case, do not try to expand. |
| if (node()->hasTagName(iframeTag) && widget() && widget()->isFrameView() |
| && width() > 1 && height() > 1) { |
| HTMLIFrameElement* element = static_cast<HTMLIFrameElement*>(node()); |
| bool scrolling = element->scrollingMode() != ScrollbarAlwaysOff; |
| bool widthIsFixed = style()->width().isFixed(); |
| bool heightIsFixed = style()->height().isFixed(); |
| // If an iframe has a fixed dimension and suppresses scrollbars, it |
| // will disrupt layout if we force it to expand. Plus on a desktop, |
| // the extra content is not accessible. |
| if (scrolling || !widthIsFixed || !heightIsFixed) { |
| FrameView* view = static_cast<FrameView*>(widget()); |
| RenderView* root = view ? view->frame()->contentRenderer() : NULL; |
| RenderPart* owner = view->frame()->ownerRenderer(); |
| if (root && style()->visibility() != HIDDEN |
| && (!owner || owner->style()->visibility() != HIDDEN)) { |
| // Update the dimensions to get the correct minimum preferred |
| // width |
| updateWidgetPosition(); |
| |
| int extraWidth = paddingLeft() + paddingRight() + borderLeft() + borderRight(); |
| int extraHeight = paddingTop() + paddingBottom() + borderTop() + borderBottom(); |
| // Use the preferred width if it is larger and only if |
| // scrollbars are visible or the width style is not fixed. |
| if (scrolling || !widthIsFixed) |
| setWidth(max(width(), root->minPrefWidth()) + extraWidth); |
| |
| // Resize the view to recalc the height. |
| int h = height() - extraHeight; |
| int w = width() - extraWidth; |
| if (w > view->width()) |
| h = 0; |
| if (w != view->width() || h != view->height()) { |
| view->resize(w, h); |
| } |
| |
| // Layout the view. |
| do { |
| view->layout(); |
| } while (view->layoutPending() || root->needsLayout()); |
| |
| int contentHeight = view->contentsHeight(); |
| int contentWidth = view->contentsWidth(); |
| // Only change the width or height if scrollbars are visible or |
| // if the style is not a fixed value. Use the maximum value so |
| // that iframes never shrink. |
| if (scrolling || !heightIsFixed) |
| setHeight(max(height(), contentHeight + extraHeight)); |
| if (scrolling || !widthIsFixed) |
| setWidth(max(width(), contentWidth + extraWidth)); |
| |
| // Update one last time |
| updateWidgetPosition(); |
| |
| #if !ASSERT_DISABLED |
| ASSERT(!view->layoutPending()); |
| ASSERT(!root->needsLayout()); |
| // Sanity check when assertions are enabled. |
| RenderObject* c = root->nextInPreOrder(); |
| while (c) { |
| ASSERT(!c->needsLayout()); |
| c = c->nextInPreOrder(); |
| } |
| #endif |
| } |
| } |
| } |
| #else |
| calcWidth(); |
| calcHeight(); |
| #endif |
| |
| RenderPart::layout(); |
| |
| m_overflow.clear(); |
| addShadowOverflow(); |
| |
| if (!widget() && frameView()) |
| frameView()->addWidgetToUpdate(this); |
| |
| setNeedsLayout(false); |
| } |
| |
| #ifdef FLATTEN_IFRAME |
| void RenderPartObject::calcWidth() { |
| RenderPart::calcWidth(); |
| if (!node()->hasTagName(iframeTag) || !widget() || !widget()->isFrameView()) |
| return; |
| FrameView* view = static_cast<FrameView*>(widget()); |
| RenderView* root = static_cast<RenderView*>(view->frame()->contentRenderer()); |
| if (!root) |
| return; |
| // Do not expand if the scrollbars are suppressed and the width is fixed. |
| bool scrolling = static_cast<HTMLIFrameElement*>(node())->scrollingMode() != ScrollbarAlwaysOff; |
| if (!scrolling && style()->width().isFixed()) |
| return; |
| // Update the dimensions to get the correct minimum preferred |
| // width |
| updateWidgetPosition(); |
| |
| int extraWidth = paddingLeft() + paddingRight() + borderLeft() + borderRight(); |
| // Set the width |
| setWidth(max(width(), root->minPrefWidth()) + extraWidth); |
| |
| // Update based on the new width |
| updateWidgetPosition(); |
| |
| // Layout to get the content width |
| do { |
| view->layout(); |
| } while (view->layoutPending() || root->needsLayout()); |
| |
| setWidth(max(width(), view->contentsWidth() + extraWidth)); |
| |
| // Update one last time to ensure the dimensions. |
| updateWidgetPosition(); |
| } |
| |
| void RenderPartObject::calcHeight() { |
| RenderPart::calcHeight(); |
| if (!node()->hasTagName(iframeTag) || !widget() || !widget()->isFrameView()) |
| return; |
| FrameView* view = static_cast<FrameView*>(widget()); |
| RenderView* root = static_cast<RenderView*>(view->frame()->contentRenderer()); |
| if (!root) |
| return; |
| // Do not expand if the scrollbars are suppressed and the height is fixed. |
| bool scrolling = static_cast<HTMLIFrameElement*>(node())->scrollingMode() != ScrollbarAlwaysOff; |
| if (!scrolling && style()->height().isFixed()) |
| return; |
| // Update the widget |
| updateWidgetPosition(); |
| |
| // Layout to get the content height |
| do { |
| view->layout(); |
| } while (view->layoutPending() || root->needsLayout()); |
| |
| int extraHeight = paddingTop() + paddingBottom() + borderTop() + borderBottom(); |
| setHeight(max(width(), view->contentsHeight() + extraHeight)); |
| |
| // Update one last time to ensure the dimensions. |
| updateWidgetPosition(); |
| } |
| #endif |
| |
| void RenderPartObject::viewCleared() |
| { |
| if (node() && widget() && widget()->isFrameView()) { |
| FrameView* view = static_cast<FrameView*>(widget()); |
| int marginw = -1; |
| int marginh = -1; |
| if (node()->hasTagName(iframeTag)) { |
| HTMLIFrameElement* frame = static_cast<HTMLIFrameElement*>(node()); |
| marginw = frame->getMarginWidth(); |
| marginh = frame->getMarginHeight(); |
| } |
| if (marginw != -1) |
| view->setMarginWidth(marginw); |
| if (marginh != -1) |
| view->setMarginHeight(marginh); |
| } |
| } |
| |
| } |
