| /* |
| * Copyright (C) 2009 Google Inc. All rights reserved. |
| * Copyright (C) 2011 Research In Motion Limited. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "ScriptEventListener.h" |
| |
| #include "Attribute.h" |
| #include "Document.h" |
| #include "EventListener.h" |
| #include "JSNode.h" |
| #include "Frame.h" |
| #include <runtime/Executable.h> |
| #include <runtime/JSFunction.h> |
| #include <runtime/JSLock.h> |
| |
| using namespace JSC; |
| |
| namespace WebCore { |
| |
| static const String& eventParameterName(bool isSVGEvent) |
| { |
| DEFINE_STATIC_LOCAL(const String, eventString, (ASCIILiteral("event"))); |
| DEFINE_STATIC_LOCAL(const String, evtString, (ASCIILiteral("evt"))); |
| return isSVGEvent ? evtString : eventString; |
| } |
| |
| PassRefPtr<JSLazyEventListener> createAttributeEventListener(Node* node, const Attribute& attribute) |
| { |
| ASSERT(node); |
| if (attribute.isNull()) |
| return 0; |
| |
| TextPosition position = TextPosition::minimumPosition(); |
| String sourceURL; |
| |
| // FIXME: We should be able to provide accurate source information for frameless documents, too (e.g. for importing nodes from XMLHttpRequest.responseXML). |
| if (Frame* frame = node->document()->frame()) { |
| ScriptController* scriptController = frame->script(); |
| if (!scriptController->canExecuteScripts(AboutToExecuteScript)) |
| return 0; |
| |
| position = scriptController->eventHandlerPosition(); |
| sourceURL = node->document()->url().string(); |
| } |
| |
| return JSLazyEventListener::create(attribute.localName().string(), eventParameterName(node->isSVGElement()), attribute.value(), node, sourceURL, position, 0, mainThreadNormalWorld()); |
| } |
| |
| PassRefPtr<JSLazyEventListener> createAttributeEventListener(Frame* frame, const Attribute& attribute) |
| { |
| if (!frame) |
| return 0; |
| |
| if (attribute.isNull()) |
| return 0; |
| |
| ScriptController* scriptController = frame->script(); |
| if (!scriptController->canExecuteScripts(AboutToExecuteScript)) |
| return 0; |
| |
| TextPosition position = scriptController->eventHandlerPosition(); |
| String sourceURL = frame->document()->url().string(); |
| JSObject* wrapper = toJSDOMWindow(frame, mainThreadNormalWorld()); |
| return JSLazyEventListener::create(attribute.localName().string(), eventParameterName(frame->document()->isSVGDocument()), attribute.value(), 0, sourceURL, position, wrapper, mainThreadNormalWorld()); |
| } |
| |
| String eventListenerHandlerBody(Document* document, EventListener* eventListener) |
| { |
| const JSEventListener* jsListener = JSEventListener::cast(eventListener); |
| ASSERT(jsListener); |
| if (!jsListener) |
| return ""; |
| JSLockHolder lock(jsListener->isolatedWorld()->globalData()); |
| JSC::JSObject* jsFunction = jsListener->jsFunction(document); |
| if (!jsFunction) |
| return ""; |
| ScriptState* scriptState = scriptStateFromNode(jsListener->isolatedWorld(), document); |
| return jsFunction->toString(scriptState)->value(scriptState); |
| } |
| |
| bool eventListenerHandlerLocation(Document* document, EventListener* eventListener, String& sourceName, String& scriptId, int& lineNumber) |
| { |
| const JSEventListener* jsListener = JSEventListener::cast(eventListener); |
| ASSERT(jsListener); |
| if (!jsListener) |
| return false; |
| JSLockHolder lock(jsListener->isolatedWorld()->globalData()); |
| JSC::JSObject* jsObject = jsListener->jsFunction(document); |
| if (!jsObject) |
| return false; |
| JSC::JSFunction* jsFunction = jsDynamicCast<JSFunction*>(jsObject); |
| if (!jsFunction || jsFunction->isHostFunction()) |
| return false; |
| JSC::FunctionExecutable* funcExecutable = jsFunction->jsExecutable(); |
| if (!funcExecutable) |
| return false; |
| lineNumber = funcExecutable->lineNo() - 1; |
| intptr_t funcSourceId = funcExecutable->sourceID(); |
| scriptId = funcSourceId == SourceProvider::nullID ? "" : String::number(funcSourceId); |
| sourceName = funcExecutable->sourceURL(); |
| return true; |
| } |
| |
| } // namespace WebCore |