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| 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 "bindings/v8/PageScriptDebugServer.h" | |
| 33 | |
| 34 | |
| 35 #include "bindings/core/v8/V8Window.h" | |
| 36 #include "bindings/v8/DOMWrapperWorld.h" | |
| 37 #include "bindings/v8/ScriptController.h" | |
| 38 #include "bindings/v8/ScriptSourceCode.h" | |
| 39 #include "bindings/v8/V8Binding.h" | |
| 40 #include "bindings/v8/V8ScriptRunner.h" | |
| 41 #include "bindings/v8/V8WindowShell.h" | |
| 42 #include "core/frame/FrameConsole.h" | |
| 43 #include "core/frame/FrameHost.h" | |
| 44 #include "core/frame/LocalFrame.h" | |
| 45 #include "core/frame/UseCounter.h" | |
| 46 #include "core/inspector/InspectorInstrumentation.h" | |
| 47 #include "core/inspector/InspectorTraceEvents.h" | |
| 48 #include "core/inspector/ScriptDebugListener.h" | |
| 49 #include "core/page/Page.h" | |
| 50 #include "wtf/OwnPtr.h" | |
| 51 #include "wtf/PassOwnPtr.h" | |
| 52 #include "wtf/StdLibExtras.h" | |
| 53 #include "wtf/TemporaryChange.h" | |
| 54 #include "wtf/text/StringBuilder.h" | |
| 55 | |
| 56 namespace WebCore { | |
| 57 | |
| 58 static LocalFrame* retrieveFrameWithGlobalObjectCheck(v8::Handle<v8::Context> co
ntext) | |
| 59 { | |
| 60 if (context.IsEmpty()) | |
| 61 return 0; | |
| 62 | |
| 63 // FIXME: This is a temporary hack for crbug.com/345014. | |
| 64 // Currently it's possible that V8 can trigger Debugger::ProcessDebugEvent f
or a context | |
| 65 // that is being initialized (i.e., inside Context::New() of the context). | |
| 66 // We should fix the V8 side so that it won't trigger the event for a half-b
aked context | |
| 67 // because there is no way in the embedder side to check if the context is h
alf-baked or not. | |
| 68 if (isMainThread() && DOMWrapperWorld::windowIsBeingInitialized()) | |
| 69 return 0; | |
| 70 | |
| 71 v8::Handle<v8::Value> global = V8Window::findInstanceInPrototypeChain(contex
t->Global(), context->GetIsolate()); | |
| 72 if (global.IsEmpty()) | |
| 73 return 0; | |
| 74 | |
| 75 return toFrameIfNotDetached(context); | |
| 76 } | |
| 77 | |
| 78 void PageScriptDebugServer::setPreprocessorSource(const String& preprocessorSour
ce) | |
| 79 { | |
| 80 if (preprocessorSource.isEmpty()) | |
| 81 m_preprocessorSourceCode.clear(); | |
| 82 else | |
| 83 m_preprocessorSourceCode = adoptPtr(new ScriptSourceCode(preprocessorSou
rce)); | |
| 84 m_scriptPreprocessor.clear(); | |
| 85 } | |
| 86 | |
| 87 PageScriptDebugServer& PageScriptDebugServer::shared() | |
| 88 { | |
| 89 DEFINE_STATIC_LOCAL(PageScriptDebugServer, server, ()); | |
| 90 return server; | |
| 91 } | |
| 92 | |
| 93 v8::Isolate* PageScriptDebugServer::s_mainThreadIsolate = 0; | |
| 94 | |
| 95 void PageScriptDebugServer::setMainThreadIsolate(v8::Isolate* isolate) | |
| 96 { | |
| 97 s_mainThreadIsolate = isolate; | |
| 98 } | |
| 99 | |
| 100 PageScriptDebugServer::PageScriptDebugServer() | |
| 101 : ScriptDebugServer(s_mainThreadIsolate) | |
| 102 , m_pausedPage(0) | |
| 103 { | |
| 104 } | |
| 105 | |
| 106 PageScriptDebugServer::~PageScriptDebugServer() | |
| 107 { | |
| 108 } | |
| 109 | |
| 110 void PageScriptDebugServer::addListener(ScriptDebugListener* listener, Page* pag
e) | |
| 111 { | |
| 112 ScriptController& scriptController = page->deprecatedLocalMainFrame()->scrip
t(); | |
| 113 if (!scriptController.canExecuteScripts(NotAboutToExecuteScript)) | |
| 114 return; | |
| 115 | |
| 116 v8::HandleScope scope(m_isolate); | |
| 117 | |
| 118 if (!m_listenersMap.size()) { | |
| 119 v8::Debug::SetDebugEventListener(&PageScriptDebugServer::v8DebugEventCal
lback, v8::External::New(m_isolate, this)); | |
| 120 ensureDebuggerScriptCompiled(); | |
| 121 } | |
| 122 | |
| 123 v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext(); | |
| 124 v8::Context::Scope contextScope(debuggerContext); | |
| 125 | |
| 126 v8::Local<v8::Object> debuggerScript = m_debuggerScript.newLocal(m_isolate); | |
| 127 ASSERT(!debuggerScript->IsUndefined()); | |
| 128 m_listenersMap.set(page, listener); | |
| 129 | |
| 130 V8WindowShell* shell = scriptController.existingWindowShell(DOMWrapperWorld:
:mainWorld()); | |
| 131 if (!shell || !shell->isContextInitialized()) | |
| 132 return; | |
| 133 v8::Local<v8::Context> context = shell->context(); | |
| 134 v8::Handle<v8::Function> getScriptsFunction = v8::Local<v8::Function>::Cast(
debuggerScript->Get(v8AtomicString(m_isolate, "getScripts"))); | |
| 135 v8::Handle<v8::Value> argv[] = { context->GetEmbedderData(0) }; | |
| 136 v8::Handle<v8::Value> value = V8ScriptRunner::callInternalFunction(getScript
sFunction, debuggerScript, WTF_ARRAY_LENGTH(argv), argv, m_isolate); | |
| 137 if (value.IsEmpty()) | |
| 138 return; | |
| 139 ASSERT(!value->IsUndefined() && value->IsArray()); | |
| 140 v8::Handle<v8::Array> scriptsArray = v8::Handle<v8::Array>::Cast(value); | |
| 141 for (unsigned i = 0; i < scriptsArray->Length(); ++i) | |
| 142 dispatchDidParseSource(listener, v8::Handle<v8::Object>::Cast(scriptsArr
ay->Get(v8::Integer::New(m_isolate, i)))); | |
| 143 } | |
| 144 | |
| 145 void PageScriptDebugServer::removeListener(ScriptDebugListener* listener, Page*
page) | |
| 146 { | |
| 147 if (!m_listenersMap.contains(page)) | |
| 148 return; | |
| 149 | |
| 150 if (m_pausedPage == page) | |
| 151 continueProgram(); | |
| 152 | |
| 153 m_listenersMap.remove(page); | |
| 154 | |
| 155 if (m_listenersMap.isEmpty()) { | |
| 156 discardDebuggerScript(); | |
| 157 v8::Debug::SetDebugEventListener(0); | |
| 158 // FIXME: Remove all breakpoints set by the agent. | |
| 159 } | |
| 160 } | |
| 161 | |
| 162 void PageScriptDebugServer::interruptAndRun(PassOwnPtr<Task> task) | |
| 163 { | |
| 164 ScriptDebugServer::interruptAndRun(task, s_mainThreadIsolate); | |
| 165 } | |
| 166 | |
| 167 void PageScriptDebugServer::setClientMessageLoop(PassOwnPtr<ClientMessageLoop> c
lientMessageLoop) | |
| 168 { | |
| 169 m_clientMessageLoop = clientMessageLoop; | |
| 170 } | |
| 171 | |
| 172 void PageScriptDebugServer::compileScript(ScriptState* scriptState, const String
& expression, const String& sourceURL, String* scriptId, String* exceptionDetail
sText, int* lineNumber, int* columnNumber, RefPtrWillBeRawPtr<ScriptCallStack>*
stackTrace) | |
| 173 { | |
| 174 ExecutionContext* executionContext = scriptState->executionContext(); | |
| 175 RefPtr<LocalFrame> protect = toDocument(executionContext)->frame(); | |
| 176 ScriptDebugServer::compileScript(scriptState, expression, sourceURL, scriptI
d, exceptionDetailsText, lineNumber, columnNumber, stackTrace); | |
| 177 if (!scriptId->isNull()) | |
| 178 m_compiledScriptURLs.set(*scriptId, sourceURL); | |
| 179 } | |
| 180 | |
| 181 void PageScriptDebugServer::clearCompiledScripts() | |
| 182 { | |
| 183 ScriptDebugServer::clearCompiledScripts(); | |
| 184 m_compiledScriptURLs.clear(); | |
| 185 } | |
| 186 | |
| 187 void PageScriptDebugServer::runScript(ScriptState* scriptState, const String& sc
riptId, ScriptValue* result, bool* wasThrown, String* exceptionDetailsText, int*
lineNumber, int* columnNumber, RefPtrWillBeRawPtr<ScriptCallStack>* stackTrace) | |
| 188 { | |
| 189 String sourceURL = m_compiledScriptURLs.take(scriptId); | |
| 190 | |
| 191 ExecutionContext* executionContext = scriptState->executionContext(); | |
| 192 LocalFrame* frame = toDocument(executionContext)->frame(); | |
| 193 TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "EvaluateScript
", "data", InspectorEvaluateScriptEvent::data(frame, sourceURL, TextPosition::mi
nimumPosition().m_line.oneBasedInt())); | |
| 194 TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline.stack"), "
CallStack", "stack", InspectorCallStackEvent::currentCallStack()); | |
| 195 // FIXME(361045): remove InspectorInstrumentation calls once DevTools Timeli
ne migrates to tracing. | |
| 196 InspectorInstrumentationCookie cookie; | |
| 197 if (frame) | |
| 198 cookie = InspectorInstrumentation::willEvaluateScript(frame, sourceURL,
TextPosition::minimumPosition().m_line.oneBasedInt()); | |
| 199 | |
| 200 RefPtr<LocalFrame> protect = frame; | |
| 201 ScriptDebugServer::runScript(scriptState, scriptId, result, wasThrown, excep
tionDetailsText, lineNumber, columnNumber, stackTrace); | |
| 202 | |
| 203 if (frame) | |
| 204 InspectorInstrumentation::didEvaluateScript(cookie); | |
| 205 TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "Update
Counters", "data", InspectorUpdateCountersEvent::data()); | |
| 206 } | |
| 207 | |
| 208 ScriptDebugListener* PageScriptDebugServer::getDebugListenerForContext(v8::Handl
e<v8::Context> context) | |
| 209 { | |
| 210 v8::HandleScope scope(m_isolate); | |
| 211 LocalFrame* frame = retrieveFrameWithGlobalObjectCheck(context); | |
| 212 if (!frame) | |
| 213 return 0; | |
| 214 return m_listenersMap.get(frame->page()); | |
| 215 } | |
| 216 | |
| 217 void PageScriptDebugServer::runMessageLoopOnPause(v8::Handle<v8::Context> contex
t) | |
| 218 { | |
| 219 v8::HandleScope scope(m_isolate); | |
| 220 LocalFrame* frame = retrieveFrameWithGlobalObjectCheck(context); | |
| 221 m_pausedPage = frame->page(); | |
| 222 | |
| 223 // Wait for continue or step command. | |
| 224 m_clientMessageLoop->run(m_pausedPage); | |
| 225 | |
| 226 // The listener may have been removed in the nested loop. | |
| 227 if (ScriptDebugListener* listener = m_listenersMap.get(m_pausedPage)) | |
| 228 listener->didContinue(); | |
| 229 | |
| 230 m_pausedPage = 0; | |
| 231 } | |
| 232 | |
| 233 void PageScriptDebugServer::quitMessageLoopOnPause() | |
| 234 { | |
| 235 m_clientMessageLoop->quitNow(); | |
| 236 } | |
| 237 | |
| 238 void PageScriptDebugServer::preprocessBeforeCompile(const v8::Debug::EventDetail
s& eventDetails) | |
| 239 { | |
| 240 v8::Handle<v8::Context> eventContext = eventDetails.GetEventContext(); | |
| 241 LocalFrame* frame = retrieveFrameWithGlobalObjectCheck(eventContext); | |
| 242 if (!frame) | |
| 243 return; | |
| 244 | |
| 245 if (!canPreprocess(frame)) | |
| 246 return; | |
| 247 | |
| 248 v8::Handle<v8::Object> eventData = eventDetails.GetEventData(); | |
| 249 v8::Local<v8::Context> debugContext = v8::Debug::GetDebugContext(); | |
| 250 v8::Context::Scope contextScope(debugContext); | |
| 251 v8::TryCatch tryCatch; | |
| 252 // <script> tag source and attribute value source are preprocessed before we
enter V8. | |
| 253 // Avoid preprocessing any internal scripts by processing only eval source i
n this V8 event handler. | |
| 254 v8::Handle<v8::Value> argvEventData[] = { eventData }; | |
| 255 v8::Handle<v8::Value> v8Value = callDebuggerMethod("isEvalCompilation", WTF_
ARRAY_LENGTH(argvEventData), argvEventData); | |
| 256 if (v8Value.IsEmpty() || !v8Value->ToBoolean()->Value()) | |
| 257 return; | |
| 258 | |
| 259 // The name and source are in the JS event data. | |
| 260 String scriptName = toCoreStringWithUndefinedOrNullCheck(callDebuggerMethod(
"getScriptName", WTF_ARRAY_LENGTH(argvEventData), argvEventData)); | |
| 261 String script = toCoreStringWithUndefinedOrNullCheck(callDebuggerMethod("get
ScriptSource", WTF_ARRAY_LENGTH(argvEventData), argvEventData)); | |
| 262 | |
| 263 String preprocessedSource = m_scriptPreprocessor->preprocessSourceCode(scri
pt, scriptName); | |
| 264 | |
| 265 v8::Handle<v8::Value> argvPreprocessedScript[] = { eventData, v8String(debug
Context->GetIsolate(), preprocessedSource) }; | |
| 266 callDebuggerMethod("setScriptSource", WTF_ARRAY_LENGTH(argvPreprocessedScrip
t), argvPreprocessedScript); | |
| 267 } | |
| 268 | |
| 269 static bool isCreatingPreprocessor = false; | |
| 270 | |
| 271 bool PageScriptDebugServer::canPreprocess(LocalFrame* frame) | |
| 272 { | |
| 273 ASSERT(frame); | |
| 274 | |
| 275 if (!m_preprocessorSourceCode || !frame->page() || isCreatingPreprocessor) | |
| 276 return false; | |
| 277 | |
| 278 // We delay the creation of the preprocessor until just before the first JS
from the | |
| 279 // Web page to ensure that the debugger's console initialization code has co
mpleted. | |
| 280 if (!m_scriptPreprocessor) { | |
| 281 TemporaryChange<bool> isPreprocessing(isCreatingPreprocessor, true); | |
| 282 m_scriptPreprocessor = adoptPtr(new ScriptPreprocessor(*m_preprocessorSo
urceCode.get(), frame)); | |
| 283 } | |
| 284 | |
| 285 if (m_scriptPreprocessor->isValid()) | |
| 286 return true; | |
| 287 | |
| 288 m_scriptPreprocessor.clear(); | |
| 289 // Don't retry the compile if we fail one time. | |
| 290 m_preprocessorSourceCode.clear(); | |
| 291 return false; | |
| 292 } | |
| 293 | |
| 294 // Source to Source processing iff debugger enabled and it has loaded a preproce
ssor. | |
| 295 PassOwnPtr<ScriptSourceCode> PageScriptDebugServer::preprocess(LocalFrame* frame
, const ScriptSourceCode& sourceCode) | |
| 296 { | |
| 297 if (!canPreprocess(frame)) | |
| 298 return PassOwnPtr<ScriptSourceCode>(); | |
| 299 | |
| 300 String preprocessedSource = m_scriptPreprocessor->preprocessSourceCode(sourc
eCode.source(), sourceCode.url()); | |
| 301 return adoptPtr(new ScriptSourceCode(preprocessedSource, sourceCode.url())); | |
| 302 } | |
| 303 | |
| 304 String PageScriptDebugServer::preprocessEventListener(LocalFrame* frame, const S
tring& source, const String& url, const String& functionName) | |
| 305 { | |
| 306 if (!canPreprocess(frame)) | |
| 307 return source; | |
| 308 | |
| 309 return m_scriptPreprocessor->preprocessSourceCode(source, url, functionName)
; | |
| 310 } | |
| 311 | |
| 312 void PageScriptDebugServer::muteWarningsAndDeprecations() | |
| 313 { | |
| 314 FrameConsole::mute(); | |
| 315 UseCounter::muteForInspector(); | |
| 316 } | |
| 317 | |
| 318 void PageScriptDebugServer::unmuteWarningsAndDeprecations() | |
| 319 { | |
| 320 FrameConsole::unmute(); | |
| 321 UseCounter::unmuteForInspector(); | |
| 322 } | |
| 323 | |
| 324 } // namespace WebCore | |
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Chromium Code Reviews
Issue 351423002:
Moved files under Source/bindings/v8 to Source/bindings/core/v8. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk