1/* 2 * Copyright (C) 2013 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 "modules/webmidi/NavigatorWebMIDI.h" 33 34#include "bindings/core/v8/ScriptPromise.h" 35#include "bindings/core/v8/ScriptPromiseResolver.h" 36#include "core/dom/DOMError.h" 37#include "core/dom/Document.h" 38#include "core/frame/LocalFrame.h" 39#include "core/frame/Navigator.h" 40#include "modules/webmidi/MIDIAccessInitializer.h" 41#include "modules/webmidi/MIDIOptions.h" 42 43namespace blink { 44 45NavigatorWebMIDI::NavigatorWebMIDI(LocalFrame* frame) 46 : DOMWindowProperty(frame) 47{ 48} 49 50DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(NavigatorWebMIDI); 51 52void NavigatorWebMIDI::trace(Visitor* visitor) 53{ 54 WillBeHeapSupplement<Navigator>::trace(visitor); 55 DOMWindowProperty::trace(visitor); 56} 57 58const char* NavigatorWebMIDI::supplementName() 59{ 60 return "NavigatorWebMIDI"; 61} 62 63NavigatorWebMIDI& NavigatorWebMIDI::from(Navigator& navigator) 64{ 65 NavigatorWebMIDI* supplement = static_cast<NavigatorWebMIDI*>(WillBeHeapSupplement<Navigator>::from(navigator, supplementName())); 66 if (!supplement) { 67 supplement = new NavigatorWebMIDI(navigator.frame()); 68 provideTo(navigator, supplementName(), adoptPtrWillBeNoop(supplement)); 69 } 70 return *supplement; 71} 72 73ScriptPromise NavigatorWebMIDI::requestMIDIAccess(ScriptState* scriptState, Navigator& navigator, const MIDIOptions& options) 74{ 75 return NavigatorWebMIDI::from(navigator).requestMIDIAccess(scriptState, options); 76} 77 78ScriptPromise NavigatorWebMIDI::requestMIDIAccess(ScriptState* scriptState, const MIDIOptions& options) 79{ 80 if (!frame() || frame()->document()->activeDOMObjectsAreStopped()) { 81 RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState); 82 ScriptPromise promise = resolver->promise(); 83 // FIXME: Currently this rejection does not work because the context is stopped. 84 resolver->reject(DOMError::create("AbortError")); 85 return promise; 86 } 87 88 return MIDIAccessInitializer::start(scriptState, options); 89} 90 91} // namespace blink 92