15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2006, 2007, 2008, 2009 Google Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions are 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions of source code must retain the above copyright 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions in binary form must reproduce the above 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * copyright notice, this list of conditions and the following disclaimer 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * in the documentation and/or other materials provided with the 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * distribution. 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Neither the name of Google Inc. nor the names of its 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * contributors may be used to endorse or promote products derived from 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * this software without specific prior written permission. 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "config.h" 32197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch#include "bindings/core/v8/V8EventListener.h" 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 34197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch#include "bindings/core/v8/ScriptController.h" 35197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch#include "bindings/core/v8/V8Binding.h" 3653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/dom/Document.h" 37d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles)#include "core/frame/LocalFrame.h" 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 39c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)namespace blink { 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 41f6b7aed3f7ce69aca0d7a032d144cbd088b04393Torne (Richard Coles)V8EventListener::V8EventListener(v8::Local<v8::Object> listener, bool isAttribute, ScriptState* scriptState) 42f6b7aed3f7ce69aca0d7a032d144cbd088b04393Torne (Richard Coles) : V8AbstractEventListener(isAttribute, scriptState) 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) setListenerObject(listener); 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 47f6b7aed3f7ce69aca0d7a032d144cbd088b04393Torne (Richard Coles)v8::Local<v8::Function> V8EventListener::getListenerFunction(ExecutionContext*) 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 49f6b7aed3f7ce69aca0d7a032d144cbd088b04393Torne (Richard Coles) v8::Local<v8::Object> listener = getListenerObject(scriptState()->executionContext()); 505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Has the listener been disposed? 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (listener.IsEmpty()) 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return v8::Local<v8::Function>(); 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (listener->IsFunction()) 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return v8::Local<v8::Function>::Cast(listener); 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (listener->IsObject()) { 593c9e4aeaee9f9b0a9a814da07bcb33319c7ea363Ben Murdoch ASSERT_WITH_MESSAGE(!isAttribute(), "EventHandler attributes should only accept JS Functions as input."); 60a854de003a23bf3c7f95ec0f8154ada64092ff5cTorne (Richard Coles) v8::Local<v8::Value> property = listener->Get(v8AtomicString(isolate(), "handleEvent")); 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Check that no exceptions were thrown when getting the 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // handleEvent property and that the value is a function. 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!property.IsEmpty() && property->IsFunction()) 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return v8::Local<v8::Function>::Cast(property); 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return v8::Local<v8::Function>(); 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 70f6b7aed3f7ce69aca0d7a032d144cbd088b04393Torne (Richard Coles)v8::Local<v8::Value> V8EventListener::callListenerFunction(v8::Handle<v8::Value> jsEvent, Event* event) 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 72f6b7aed3f7ce69aca0d7a032d144cbd088b04393Torne (Richard Coles) v8::Local<v8::Function> handlerFunction = getListenerFunction(scriptState()->executionContext()); 73f6b7aed3f7ce69aca0d7a032d144cbd088b04393Torne (Richard Coles) v8::Local<v8::Object> receiver = getReceiverObject(event); 745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (handlerFunction.IsEmpty() || receiver.IsEmpty()) 755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return v8::Local<v8::Value>(); 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 77f6b7aed3f7ce69aca0d7a032d144cbd088b04393Torne (Richard Coles) if (!scriptState()->executionContext()->isDocument()) 785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return v8::Local<v8::Value>(); 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 80f6b7aed3f7ce69aca0d7a032d144cbd088b04393Torne (Richard Coles) LocalFrame* frame = toDocument(scriptState()->executionContext())->frame(); 815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!frame) 825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return v8::Local<v8::Value>(); 835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 84f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) if (!frame->script().canExecuteScripts(AboutToExecuteScript)) 855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return v8::Local<v8::Value>(); 865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 875267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) v8::Handle<v8::Value> parameters[1] = { jsEvent }; 88f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) return frame->script().callFunction(handlerFunction, receiver, WTF_ARRAY_LENGTH(parameters), parameters); 895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 91c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)} // namespace blink 92