1 /* 2 * Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies) 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 * 19 */ 20 21 #include "config.h" 22 #include "core/html/HTMLSummaryElement.h" 23 24 #include "HTMLNames.h" 25 #include "bindings/v8/ExceptionStatePlaceholder.h" 26 #include "core/dom/KeyboardEvent.h" 27 #include "core/dom/NodeRenderingContext.h" 28 #include "core/dom/shadow/ShadowRoot.h" 29 #include "core/html/HTMLDetailsElement.h" 30 #include "core/html/shadow/DetailsMarkerControl.h" 31 #include "core/html/shadow/HTMLContentElement.h" 32 #include "core/rendering/RenderBlock.h" 33 34 namespace WebCore { 35 36 using namespace HTMLNames; 37 38 PassRefPtr<HTMLSummaryElement> HTMLSummaryElement::create(const QualifiedName& tagName, Document* document) 39 { 40 RefPtr<HTMLSummaryElement> summary = adoptRef(new HTMLSummaryElement(tagName, document)); 41 summary->ensureUserAgentShadowRoot(); 42 return summary.release(); 43 } 44 45 HTMLSummaryElement::HTMLSummaryElement(const QualifiedName& tagName, Document* document) 46 : HTMLElement(tagName, document) 47 { 48 ASSERT(hasTagName(summaryTag)); 49 } 50 51 RenderObject* HTMLSummaryElement::createRenderer(RenderStyle*) 52 { 53 return new RenderBlock(this); 54 } 55 56 void HTMLSummaryElement::didAddUserAgentShadowRoot(ShadowRoot* root) 57 { 58 root->appendChild(DetailsMarkerControl::create(document()), ASSERT_NO_EXCEPTION, AttachLazily); 59 root->appendChild(HTMLContentElement::create(document()), ASSERT_NO_EXCEPTION, AttachLazily); 60 } 61 62 HTMLDetailsElement* HTMLSummaryElement::detailsElement() const 63 { 64 Node* parent = NodeRenderingTraversal::parent(this); 65 if (parent && isHTMLDetailsElement(parent)) 66 return toHTMLDetailsElement(parent); 67 return 0; 68 } 69 70 bool HTMLSummaryElement::isMainSummary() const 71 { 72 if (HTMLDetailsElement* details = detailsElement()) 73 return details->findMainSummary() == this; 74 75 return false; 76 } 77 78 static bool isClickableControl(Node* node) 79 { 80 if (!node->isElementNode()) 81 return false; 82 Element* element = toElement(node); 83 if (element->isFormControlElement()) 84 return true; 85 Element* host = element->shadowHost(); 86 return host && host->isFormControlElement(); 87 } 88 89 bool HTMLSummaryElement::supportsFocus() const 90 { 91 return isMainSummary(); 92 } 93 94 void HTMLSummaryElement::defaultEventHandler(Event* event) 95 { 96 if (isMainSummary() && renderer()) { 97 if (event->type() == eventNames().DOMActivateEvent && !isClickableControl(event->target()->toNode())) { 98 if (HTMLDetailsElement* details = detailsElement()) 99 details->toggleOpen(); 100 event->setDefaultHandled(); 101 return; 102 } 103 104 if (event->isKeyboardEvent()) { 105 if (event->type() == eventNames().keydownEvent && toKeyboardEvent(event)->keyIdentifier() == "U+0020") { 106 setActive(true, true); 107 // No setDefaultHandled() - IE dispatches a keypress in this case. 108 return; 109 } 110 if (event->type() == eventNames().keypressEvent) { 111 switch (toKeyboardEvent(event)->charCode()) { 112 case '\r': 113 dispatchSimulatedClick(event); 114 event->setDefaultHandled(); 115 return; 116 case ' ': 117 // Prevent scrolling down the page. 118 event->setDefaultHandled(); 119 return; 120 } 121 } 122 if (event->type() == eventNames().keyupEvent && toKeyboardEvent(event)->keyIdentifier() == "U+0020") { 123 if (active()) 124 dispatchSimulatedClick(event); 125 event->setDefaultHandled(); 126 return; 127 } 128 } 129 } 130 131 HTMLElement::defaultEventHandler(event); 132 } 133 134 bool HTMLSummaryElement::willRespondToMouseClickEvents() 135 { 136 if (isMainSummary() && renderer()) 137 return true; 138 139 return HTMLElement::willRespondToMouseClickEvents(); 140 } 141 142 } 143