1 /* 2 * Copyright (c) 2011 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "config.h" 32 #include "PageScriptDebugServer.h" 33 34 #if ENABLE(JAVASCRIPT_DEBUGGER) 35 36 #include "Frame.h" 37 #include "FrameView.h" 38 #include "JSDOMWindowCustom.h" 39 #include "Page.h" 40 #include "PageGroup.h" 41 #include "PluginView.h" 42 #include "ScriptDebugListener.h" 43 #include "Widget.h" 44 #include <runtime/JSLock.h> 45 #include <wtf/MainThread.h> 46 #include <wtf/OwnPtr.h> 47 #include <wtf/PassOwnPtr.h> 48 #include <wtf/StdLibExtras.h> 49 50 using namespace JSC; 51 52 namespace WebCore { 53 54 static Page* toPage(JSGlobalObject* globalObject) 55 { 56 ASSERT_ARG(globalObject, globalObject); 57 58 JSDOMWindow* window = asJSDOMWindow(globalObject); 59 Frame* frame = window->impl()->frame(); 60 return frame ? frame->page() : 0; 61 } 62 63 PageScriptDebugServer& PageScriptDebugServer::shared() 64 { 65 DEFINE_STATIC_LOCAL(PageScriptDebugServer, server, ()); 66 return server; 67 } 68 69 PageScriptDebugServer::PageScriptDebugServer() 70 : ScriptDebugServer() 71 { 72 } 73 74 PageScriptDebugServer::~PageScriptDebugServer() 75 { 76 deleteAllValues(m_pageListenersMap); 77 } 78 79 void PageScriptDebugServer::addListener(ScriptDebugListener* listener, Page* page) 80 { 81 ASSERT_ARG(listener, listener); 82 ASSERT_ARG(page, page); 83 84 pair<PageListenersMap::iterator, bool> result = m_pageListenersMap.add(page, 0); 85 if (result.second) 86 result.first->second = new ListenerSet; 87 88 ListenerSet* listeners = result.first->second; 89 listeners->add(listener); 90 91 recompileAllJSFunctionsSoon(); 92 page->setDebugger(this); 93 } 94 95 void PageScriptDebugServer::removeListener(ScriptDebugListener* listener, Page* page) 96 { 97 ASSERT_ARG(listener, listener); 98 ASSERT_ARG(page, page); 99 100 PageListenersMap::iterator it = m_pageListenersMap.find(page); 101 if (it == m_pageListenersMap.end()) 102 return; 103 104 ListenerSet* listeners = it->second; 105 listeners->remove(listener); 106 if (listeners->isEmpty()) { 107 m_pageListenersMap.remove(it); 108 delete listeners; 109 didRemoveLastListener(page); 110 } 111 } 112 113 void PageScriptDebugServer::recompileAllJSFunctions(Timer<ScriptDebugServer>*) 114 { 115 JSLock lock(SilenceAssertionsOnly); 116 // If JavaScript stack is not empty postpone recompilation. 117 if (JSDOMWindow::commonJSGlobalData()->dynamicGlobalObject) 118 recompileAllJSFunctionsSoon(); 119 else 120 Debugger::recompileAllJSFunctions(JSDOMWindow::commonJSGlobalData()); 121 } 122 123 ScriptDebugServer::ListenerSet* PageScriptDebugServer::getListenersForGlobalObject(JSGlobalObject* globalObject) 124 { 125 Page* page = toPage(globalObject); 126 if (!page) 127 return 0; 128 return m_pageListenersMap.get(page); 129 } 130 131 void PageScriptDebugServer::didPause(JSC::JSGlobalObject* globalObject) 132 { 133 Page* page = toPage(globalObject); 134 m_pausedPage = page; 135 setJavaScriptPaused(page->group(), true); 136 } 137 138 void PageScriptDebugServer::didContinue(JSC::JSGlobalObject* globalObject) 139 { 140 Page* page = toPage(globalObject); 141 m_pausedPage = 0; 142 setJavaScriptPaused(page->group(), false); 143 } 144 145 void PageScriptDebugServer::didRemoveLastListener(Page* page) 146 { 147 if (m_pausedPage == page) 148 m_doneProcessingDebuggerEvents = true; 149 150 recompileAllJSFunctionsSoon(); 151 page->setDebugger(0); 152 } 153 154 void PageScriptDebugServer::setJavaScriptPaused(const PageGroup& pageGroup, bool paused) 155 { 156 setMainThreadCallbacksPaused(paused); 157 158 const HashSet<Page*>& pages = pageGroup.pages(); 159 160 HashSet<Page*>::const_iterator end = pages.end(); 161 for (HashSet<Page*>::const_iterator it = pages.begin(); it != end; ++it) 162 setJavaScriptPaused(*it, paused); 163 } 164 165 void PageScriptDebugServer::setJavaScriptPaused(Page* page, bool paused) 166 { 167 ASSERT_ARG(page, page); 168 169 page->setDefersLoading(paused); 170 171 for (Frame* frame = page->mainFrame(); frame; frame = frame->tree()->traverseNext()) 172 setJavaScriptPaused(frame, paused); 173 } 174 175 void PageScriptDebugServer::setJavaScriptPaused(Frame* frame, bool paused) 176 { 177 ASSERT_ARG(frame, frame); 178 179 if (!frame->script()->canExecuteScripts(NotAboutToExecuteScript)) 180 return; 181 182 frame->script()->setPaused(paused); 183 184 Document* document = frame->document(); 185 if (paused) { 186 document->suspendScriptedAnimationControllerCallbacks(); 187 document->suspendActiveDOMObjects(ActiveDOMObject::JavaScriptDebuggerPaused); 188 } else { 189 document->resumeActiveDOMObjects(); 190 document->resumeScriptedAnimationControllerCallbacks(); 191 } 192 193 setJavaScriptPaused(frame->view(), paused); 194 } 195 196 void PageScriptDebugServer::setJavaScriptPaused(FrameView* view, bool paused) 197 { 198 if (!view) 199 return; 200 201 const HashSet<RefPtr<Widget> >* children = view->children(); 202 ASSERT(children); 203 204 HashSet<RefPtr<Widget> >::const_iterator end = children->end(); 205 for (HashSet<RefPtr<Widget> >::const_iterator it = children->begin(); it != end; ++it) { 206 Widget* widget = (*it).get(); 207 if (!widget->isPluginView()) 208 continue; 209 static_cast<PluginView*>(widget)->setJavaScriptPaused(paused); 210 } 211 } 212 213 } // namespace WebCore 214 215 #endif // ENABLE(JAVASCRIPT_DEBUGGER) 216
