1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org) 3 * (C) 1999 Antti Koivisto (koivisto (at) kde.org) 4 * (C) 2000 Simon Hausmann (hausmann (at) kde.org) 5 * (C) 2001 Dirk Mueller (mueller (at) 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/v8/ScriptController.h" 28 #include "bindings/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 41 namespace WebCore { 42 43 using namespace HTMLNames; 44 45 HTMLFrameElementBase::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 53 bool 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 73 void 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 } 99 100 void 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 } 134 135 void HTMLFrameElementBase::setNameAndOpenURL() 136 { 137 m_frameName = getNameAttribute(); 138 openURL(); 139 } 140 141 Node::InsertionNotificationRequest HTMLFrameElementBase::insertedInto(ContainerNode* insertionPoint) 142 { 143 HTMLFrameOwnerElement::insertedInto(insertionPoint); 144 return InsertionShouldCallDidNotifySubtreeInsertions; 145 } 146 147 void HTMLFrameElementBase::didNotifySubtreeInsertionsToDocument() 148 { 149 if (!document().frame()) 150 return; 151 152 if (!SubframeLoadingDisabler::canLoadFrame(*this)) 153 return; 154 155 setNameAndOpenURL(); 156 } 157 158 void 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 } 169 170 void HTMLFrameElementBase::setLocation(const String& str) 171 { 172 m_URL = AtomicString(str); 173 174 if (inDocument()) 175 openURL(false); 176 } 177 178 bool HTMLFrameElementBase::supportsFocus() const 179 { 180 return true; 181 } 182 183 void 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 } 193 194 bool HTMLFrameElementBase::isURLAttribute(const Attribute& attribute) const 195 { 196 return attribute.name() == longdescAttr || attribute.name() == srcAttr 197 || HTMLFrameOwnerElement::isURLAttribute(attribute); 198 } 199 200 bool HTMLFrameElementBase::hasLegalLinkAttribute(const QualifiedName& name) const 201 { 202 return name == srcAttr || HTMLFrameOwnerElement::hasLegalLinkAttribute(name); 203 } 204 205 bool HTMLFrameElementBase::isHTMLContentAttribute(const Attribute& attribute) const 206 { 207 return attribute.name() == srcdocAttr || HTMLFrameOwnerElement::isHTMLContentAttribute(attribute); 208 } 209 210 int HTMLFrameElementBase::width() 211 { 212 document().updateLayoutIgnorePendingStylesheets(); 213 if (!renderBox()) 214 return 0; 215 return renderBox()->width(); 216 } 217 218 int HTMLFrameElementBase::height() 219 { 220 document().updateLayoutIgnorePendingStylesheets(); 221 if (!renderBox()) 222 return 0; 223 return renderBox()->height(); 224 } 225 226 // FIXME: Remove this code once we have input routing in the browser 227 // process. See http://crbug.com/339659. 228 void HTMLFrameElementBase::defaultEventHandler(Event* event) 229 { 230 if (contentFrame() && contentFrame()->isRemoteFrameTemporary()) { 231 contentFrame()->chromeClient().forwardInputEvent(contentFrame(), event); 232 return; 233 } 234 HTMLFrameOwnerElement::defaultEventHandler(event); 235 } 236 237 } // namespace WebCore 238
