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 "bindings/core/v8/ExceptionStatePlaceholder.h" 25 #include "core/HTMLNames.h" 26 #include "core/events/KeyboardEvent.h" 27 #include "core/dom/NodeRenderingTraversal.h" 28 #include "core/dom/shadow/ShadowRoot.h" 29 #include "core/html/HTMLContentElement.h" 30 #include "core/html/HTMLDetailsElement.h" 31 #include "core/html/shadow/DetailsMarkerControl.h" 32 #include "core/rendering/RenderBlockFlow.h" 33 34 namespace blink { 35 36 using namespace HTMLNames; 37 38 PassRefPtrWillBeRawPtr<HTMLSummaryElement> HTMLSummaryElement::create(Document& document) 39 { 40 RefPtrWillBeRawPtr<HTMLSummaryElement> summary = adoptRefWillBeNoop(new HTMLSummaryElement(document)); 41 summary->ensureUserAgentShadowRoot(); 42 return summary.release(); 43 } 44 45 HTMLSummaryElement::HTMLSummaryElement(Document& document) 46 : HTMLElement(summaryTag, document) 47 { 48 } 49 50 RenderObject* HTMLSummaryElement::createRenderer(RenderStyle*) 51 { 52 return new RenderBlockFlow(this); 53 } 54 55 void HTMLSummaryElement::didAddUserAgentShadowRoot(ShadowRoot& root) 56 { 57 root.appendChild(DetailsMarkerControl::create(document())); 58 root.appendChild(HTMLContentElement::create(document())); 59 } 60 61 HTMLDetailsElement* HTMLSummaryElement::detailsElement() const 62 { 63 Node* parent = NodeRenderingTraversal::parent(this); 64 if (isHTMLDetailsElement(parent)) 65 return toHTMLDetailsElement(parent); 66 return 0; 67 } 68 69 bool HTMLSummaryElement::isMainSummary() const 70 { 71 if (HTMLDetailsElement* details = detailsElement()) 72 return details->findMainSummary() == this; 73 74 return false; 75 } 76 77 static bool isClickableControl(Node* node) 78 { 79 if (!node->isElementNode()) 80 return false; 81 Element* element = toElement(node); 82 if (element->isFormControlElement()) 83 return true; 84 Element* host = element->shadowHost(); 85 return host && host->isFormControlElement(); 86 } 87 88 bool HTMLSummaryElement::supportsFocus() const 89 { 90 return isMainSummary(); 91 } 92 93 void HTMLSummaryElement::defaultEventHandler(Event* event) 94 { 95 if (isMainSummary() && renderer()) { 96 if (event->type() == EventTypeNames::DOMActivate && !isClickableControl(event->target()->toNode())) { 97 if (HTMLDetailsElement* details = detailsElement()) 98 details->toggleOpen(); 99 event->setDefaultHandled(); 100 return; 101 } 102 103 if (event->isKeyboardEvent()) { 104 if (event->type() == EventTypeNames::keydown && toKeyboardEvent(event)->keyIdentifier() == "U+0020") { 105 setActive(true); 106 // No setDefaultHandled() - IE dispatches a keypress in this case. 107 return; 108 } 109 if (event->type() == EventTypeNames::keypress) { 110 switch (toKeyboardEvent(event)->charCode()) { 111 case '\r': 112 dispatchSimulatedClick(event); 113 event->setDefaultHandled(); 114 return; 115 case ' ': 116 // Prevent scrolling down the page. 117 event->setDefaultHandled(); 118 return; 119 } 120 } 121 if (event->type() == EventTypeNames::keyup && toKeyboardEvent(event)->keyIdentifier() == "U+0020") { 122 if (active()) 123 dispatchSimulatedClick(event); 124 event->setDefaultHandled(); 125 return; 126 } 127 } 128 } 129 130 HTMLElement::defaultEventHandler(event); 131 } 132 133 bool HTMLSummaryElement::willRespondToMouseClickEvents() 134 { 135 if (isMainSummary() && renderer()) 136 return true; 137 138 return HTMLElement::willRespondToMouseClickEvents(); 139 } 140 141 } 142