OLD | NEW |
(Empty) | |
| 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/MIDIAccessPromise.h" |
| 33 |
| 34 #include "core/dom/DOMError.h" |
| 35 #include "modules/webmidi/MIDIAccess.h" |
| 36 #include "modules/webmidi/MIDIErrorCallback.h" |
| 37 #include "modules/webmidi/MIDISuccessCallback.h" |
| 38 |
| 39 namespace WebCore { |
| 40 |
| 41 PassRefPtr<MIDIAccessPromise> MIDIAccessPromise::create(ScriptExecutionContext*
context, const Dictionary& options) |
| 42 { |
| 43 RefPtr<MIDIAccessPromise> midiAccessPromise(adoptRef(new MIDIAccessPromise(c
ontext, options))); |
| 44 midiAccessPromise->suspendIfNeeded(); |
| 45 return midiAccessPromise.release(); |
| 46 } |
| 47 |
| 48 MIDIAccessPromise::MIDIAccessPromise(ScriptExecutionContext* context, const Dict
ionary& options) |
| 49 : ActiveDOMObject(context) |
| 50 , m_state(Pending) |
| 51 , m_options(adoptPtr(new MIDIOptions(options))) |
| 52 , m_access(MIDIAccess::create(context, this)) |
| 53 { |
| 54 ScriptWrappable::init(this); |
| 55 setPendingActivity(this); |
| 56 } |
| 57 |
| 58 MIDIAccessPromise::~MIDIAccessPromise() |
| 59 { |
| 60 stop(); |
| 61 } |
| 62 |
| 63 void MIDIAccessPromise::fulfill() |
| 64 { |
| 65 if (m_state == Pending) { |
| 66 if (m_successCallback) { |
| 67 m_state = Invoked; |
| 68 m_successCallback->handleEvent(m_access.release().leakRef(), m_optio
ns->sysexEnabled); |
| 69 m_options.clear(); |
| 70 } else { |
| 71 m_state = Accepted; |
| 72 } |
| 73 unsetPendingActivity(this); |
| 74 } |
| 75 m_successCallback.clear(); |
| 76 m_errorCallback.clear(); |
| 77 } |
| 78 |
| 79 void MIDIAccessPromise::reject(DOMError* error) |
| 80 { |
| 81 if (m_state == Pending) { |
| 82 if (m_errorCallback) { |
| 83 m_state = Invoked; |
| 84 m_errorCallback->handleEvent(error); |
| 85 } else { |
| 86 m_state = Rejected; |
| 87 m_error = adoptRef(error); |
| 88 } |
| 89 unsetPendingActivity(this); |
| 90 } |
| 91 m_successCallback.clear(); |
| 92 m_errorCallback.clear(); |
| 93 } |
| 94 |
| 95 void MIDIAccessPromise::then(PassRefPtr<MIDISuccessCallback> successCallback, Pa
ssRefPtr<MIDIErrorCallback> errorCallback) |
| 96 { |
| 97 switch (m_state) { |
| 98 case Accepted: |
| 99 successCallback->handleEvent(m_access.release().leakRef(), m_options->sy
sexEnabled); |
| 100 m_options.clear(); |
| 101 m_state = Invoked; |
| 102 break; |
| 103 case Rejected: |
| 104 errorCallback->handleEvent(m_error.release().leakRef()); |
| 105 m_state = Invoked; |
| 106 break; |
| 107 case Pending: |
| 108 m_successCallback = successCallback; |
| 109 m_errorCallback = errorCallback; |
| 110 break; |
| 111 case Invoked: |
| 112 break; |
| 113 default: |
| 114 ASSERT_NOT_REACHED(); |
| 115 } |
| 116 } |
| 117 |
| 118 } // namespace WebCore |
OLD | NEW |