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Unified Diff: Source/modules/webmidi/MIDIAccessPromise.cpp

Issue 77773003: Make WebMIDI use blink Promise. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Created 7 years, 1 month ago
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Index: Source/modules/webmidi/MIDIAccessPromise.cpp
diff --git a/Source/modules/webmidi/MIDIAccessPromise.cpp b/Source/modules/webmidi/MIDIAccessPromise.cpp
deleted file mode 100644
index 01a6dfa299860bf2ea09a83ed74cdfd04c20b8e3..0000000000000000000000000000000000000000
--- a/Source/modules/webmidi/MIDIAccessPromise.cpp
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Copyright (C) 2013 Google Inc. 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 "modules/webmidi/MIDIAccessPromise.h"
-
-#include "core/dom/DOMError.h"
-#include "modules/webmidi/MIDIAccess.h"
-#include "modules/webmidi/MIDIErrorCallback.h"
-#include "modules/webmidi/MIDISuccessCallback.h"
-
-namespace WebCore {
-
-PassRefPtr<MIDIAccessPromise> MIDIAccessPromise::create(ExecutionContext* context, const Dictionary& options)
-{
- RefPtr<MIDIAccessPromise> midiAccessPromise(adoptRef(new MIDIAccessPromise(context, options)));
- midiAccessPromise->suspendIfNeeded();
- return midiAccessPromise.release();
-}
-
-MIDIAccessPromise::MIDIAccessPromise(ExecutionContext* context, const Dictionary& options)
- : ActiveDOMObject(context)
- , m_state(Pending)
- , m_options(adoptPtr(new MIDIOptions(options)))
-{
- ScriptWrappable::init(this);
-}
-
-MIDIAccessPromise::~MIDIAccessPromise()
-{
- stop();
-}
-
-bool MIDIAccessPromise::hasPendingActivity() const
-{
- return !!m_access && m_state != Accepted && m_state != Rejected;
-}
-
-void MIDIAccessPromise::stop()
-{
- m_state = Invoked;
- if (!!m_access)
- m_access->stop();
- clear();
-}
-
-void MIDIAccessPromise::fulfill()
-{
- if (m_state == Pending) {
- if (m_successCallback) {
- m_state = Invoked;
- ASSERT(m_access);
- m_successCallback->handleEvent(m_access.get(), m_options->sysex);
- clear();
- } else {
- m_state = Accepted;
- }
- }
-}
-
-void MIDIAccessPromise::reject(PassRefPtr<DOMError> error)
-{
- if (m_state == Pending) {
- if (m_errorCallback) {
- m_state = Invoked;
- m_errorCallback->handleEvent(error.get());
- clear();
- } else {
- m_state = Rejected;
- m_error = error;
- }
- }
-}
-
-void MIDIAccessPromise::then(PassRefPtr<MIDISuccessCallback> successCallback, PassRefPtr<MIDIErrorCallback> errorCallback)
-{
- // Lazily request access.
- if (!m_access)
- m_access = MIDIAccess::create(executionContext(), this);
-
- switch (m_state) {
- case Accepted:
- m_state = Invoked;
- successCallback->handleEvent(m_access.get(), m_options->sysex);
- clear();
- break;
- case Rejected:
- m_state = Invoked;
- errorCallback->handleEvent(m_error.get());
- clear();
- break;
- case Pending:
- m_successCallback = successCallback;
- m_errorCallback = errorCallback;
- break;
- case Invoked:
- break;
- default:
- ASSERT_NOT_REACHED();
- }
-}
-
-void MIDIAccessPromise::clear()
-{
- ASSERT(m_state == Invoked);
- m_access.clear();
- m_error.clear();
- m_options.clear();
- m_successCallback.clear();
- m_errorCallback.clear();
-}
-
-} // namespace WebCore

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