1/* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) 4 * (C) 2000 Simon Hausmann (hausmann@kde.org) 5 * (C) 2001 Dirk Mueller (mueller@kde.org) 6 * Copyright (C) 2004, 2006, 2008, 2009 Apple Inc. All rights reserved. 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Library General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Library General Public License for more details. 17 * 18 * You should have received a copy of the GNU Library General Public License 19 * along with this library; see the file COPYING.LIB. If not, write to 20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 21 * Boston, MA 02110-1301, USA. 22 */ 23 24#include "config.h" 25#include "core/html/HTMLFrameElementBase.h" 26 27#include "bindings/core/v8/ScriptController.h" 28#include "bindings/core/v8/ScriptEventListener.h" 29#include "core/HTMLNames.h" 30#include "core/dom/Attribute.h" 31#include "core/dom/Document.h" 32#include "core/frame/FrameView.h" 33#include "core/frame/LocalFrame.h" 34#include "core/html/parser/HTMLParserIdioms.h" 35#include "core/loader/FrameLoader.h" 36#include "core/page/ChromeClient.h" 37#include "core/page/FocusController.h" 38#include "core/page/Page.h" 39#include "core/rendering/RenderPart.h" 40 41namespace blink { 42 43using namespace HTMLNames; 44 45HTMLFrameElementBase::HTMLFrameElementBase(const QualifiedName& tagName, Document& document) 46 : HTMLFrameOwnerElement(tagName, document) 47 , m_scrolling(ScrollbarAuto) 48 , m_marginWidth(-1) 49 , m_marginHeight(-1) 50{ 51} 52 53bool HTMLFrameElementBase::isURLAllowed() const 54{ 55 if (m_URL.isEmpty()) 56 return true; 57 58 const KURL& completeURL = document().completeURL(m_URL); 59 60 if (protocolIsJavaScript(completeURL)) { 61 Document* contentDoc = this->contentDocument(); 62 if (contentDoc && !ScriptController::canAccessFromCurrentOrigin(contentDoc->frame())) 63 return false; 64 } 65 66 LocalFrame* parentFrame = document().frame(); 67 if (parentFrame) 68 return parentFrame->isURLAllowed(completeURL); 69 70 return true; 71} 72 73void HTMLFrameElementBase::openURL(bool lockBackForwardList) 74{ 75 if (!isURLAllowed()) 76 return; 77 78 if (m_URL.isEmpty()) 79 m_URL = AtomicString(blankURL().string()); 80 81 LocalFrame* parentFrame = document().frame(); 82 if (!parentFrame) 83 return; 84 85 // Support for <frame src="javascript:string"> 86 KURL scriptURL; 87 KURL url = document().completeURL(m_URL); 88 if (protocolIsJavaScript(m_URL)) { 89 scriptURL = url; 90 url = blankURL(); 91 } 92 93 if (!loadOrRedirectSubframe(url, m_frameName, lockBackForwardList)) 94 return; 95 if (!contentFrame() || scriptURL.isEmpty() || !contentFrame()->isLocalFrame()) 96 return; 97 toLocalFrame(contentFrame())->script().executeScriptIfJavaScriptURL(scriptURL); 98} 99 100void HTMLFrameElementBase::parseAttribute(const QualifiedName& name, const AtomicString& value) 101{ 102 if (name == srcdocAttr) 103 setLocation("about:srcdoc"); 104 else if (name == srcAttr && !fastHasAttribute(srcdocAttr)) 105 setLocation(stripLeadingAndTrailingHTMLSpaces(value)); 106 else if (isIdAttributeName(name)) { 107 // Important to call through to base for the id attribute so the hasID bit gets set. 108 HTMLFrameOwnerElement::parseAttribute(name, value); 109 m_frameName = value; 110 } else if (name == nameAttr) { 111 m_frameName = value; 112 // FIXME: If we are already attached, this doesn't actually change the frame's name. 113 // FIXME: If we are already attached, this doesn't check for frame name 114 // conflicts and generate a unique frame name. 115 } else if (name == marginwidthAttr) { 116 m_marginWidth = value.toInt(); 117 // FIXME: If we are already attached, this has no effect. 118 } else if (name == marginheightAttr) { 119 m_marginHeight = value.toInt(); 120 // FIXME: If we are already attached, this has no effect. 121 } else if (name == scrollingAttr) { 122 // Auto and yes both simply mean "allow scrolling." No means "don't allow scrolling." 123 if (equalIgnoringCase(value, "auto") || equalIgnoringCase(value, "yes")) 124 m_scrolling = ScrollbarAuto; 125 else if (equalIgnoringCase(value, "no")) 126 m_scrolling = ScrollbarAlwaysOff; 127 // FIXME: If we are already attached, this has no effect. 128 } else if (name == onbeforeunloadAttr) { 129 // FIXME: should <frame> elements have beforeunload handlers? 130 setAttributeEventListener(EventTypeNames::beforeunload, createAttributeEventListener(this, name, value, eventParameterName())); 131 } else 132 HTMLFrameOwnerElement::parseAttribute(name, value); 133} 134 135void HTMLFrameElementBase::setNameAndOpenURL() 136{ 137 m_frameName = getNameAttribute(); 138 openURL(); 139} 140 141Node::InsertionNotificationRequest HTMLFrameElementBase::insertedInto(ContainerNode* insertionPoint) 142{ 143 HTMLFrameOwnerElement::insertedInto(insertionPoint); 144 return InsertionShouldCallDidNotifySubtreeInsertions; 145} 146 147void HTMLFrameElementBase::didNotifySubtreeInsertionsToDocument() 148{ 149 if (!document().frame()) 150 return; 151 152 if (!SubframeLoadingDisabler::canLoadFrame(*this)) 153 return; 154 155 setNameAndOpenURL(); 156} 157 158void HTMLFrameElementBase::attach(const AttachContext& context) 159{ 160 HTMLFrameOwnerElement::attach(context); 161 162 if (renderPart()) { 163 if (Frame* frame = contentFrame()) { 164 if (frame->isLocalFrame()) 165 setWidget(toLocalFrame(frame)->view()); 166 } 167 } 168} 169 170void HTMLFrameElementBase::setLocation(const String& str) 171{ 172 m_URL = AtomicString(str); 173 174 if (inDocument()) 175 openURL(false); 176} 177 178bool HTMLFrameElementBase::supportsFocus() const 179{ 180 return true; 181} 182 183void HTMLFrameElementBase::setFocus(bool received) 184{ 185 HTMLFrameOwnerElement::setFocus(received); 186 if (Page* page = document().page()) { 187 if (received) 188 page->focusController().setFocusedFrame(contentFrame()); 189 else if (page->focusController().focusedFrame() == contentFrame()) // Focus may have already been given to another frame, don't take it away. 190 page->focusController().setFocusedFrame(nullptr); 191 } 192} 193 194bool HTMLFrameElementBase::isURLAttribute(const Attribute& attribute) const 195{ 196 return attribute.name() == longdescAttr || attribute.name() == srcAttr 197 || HTMLFrameOwnerElement::isURLAttribute(attribute); 198} 199 200bool HTMLFrameElementBase::hasLegalLinkAttribute(const QualifiedName& name) const 201{ 202 return name == srcAttr || HTMLFrameOwnerElement::hasLegalLinkAttribute(name); 203} 204 205bool HTMLFrameElementBase::isHTMLContentAttribute(const Attribute& attribute) const 206{ 207 return attribute.name() == srcdocAttr || HTMLFrameOwnerElement::isHTMLContentAttribute(attribute); 208} 209 210// FIXME: Remove this code once we have input routing in the browser 211// process. See http://crbug.com/339659. 212void HTMLFrameElementBase::defaultEventHandler(Event* event) 213{ 214 if (contentFrame() && contentFrame()->isRemoteFrameTemporary()) { 215 contentFrame()->chromeClient().forwardInputEvent(contentFrame(), event); 216 return; 217 } 218 HTMLFrameOwnerElement::defaultEventHandler(event); 219} 220 221} // namespace blink 222