Sigmund Cherem
c41b69ed77
These were updated in the dart:html output code in https://dart-review.googlesource.com/c/sdk/+/163681 We may want to look into adding a presubmit that let us notify developers when a change was made in one place but not the other (similar to how we used to check for sdk and sdk_nnbd in the past). Change-Id: I280315a5bb07971d0c0077498eb3c59944db0650 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/164640 Reviewed-by: Srujan Gaddam <srujzs@google.com>
93 lines
2.7 KiB
Plaintext
93 lines
2.7 KiB
Plaintext
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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part of $LIBRARYNAME;
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$(ANNOTATIONS)$(NATIVESPEC)$(CLASS_MODIFIERS)class $CLASSNAME$EXTENDS$IMPLEMENTS {
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/**
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* Checks to see if Indexed DB is supported on the current platform.
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*/
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static bool get supported {
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return JS('bool',
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'!!(window.indexedDB || '
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'window.webkitIndexedDB || '
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'window.mozIndexedDB)');
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}
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Future<Database> open(String name,
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{int$NULLABLE version,
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void onUpgradeNeeded(VersionChangeEvent event)$NULLABLE,
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void onBlocked(Event event)$NULLABLE}) {
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if ((version == null) != (onUpgradeNeeded == null)) {
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return new Future.error(new ArgumentError(
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'version and onUpgradeNeeded must be specified together'));
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}
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try {
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OpenDBRequest request;
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if (version != null) {
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request = _open(name, version);
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} else {
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request = _open(name);
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}
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if (onUpgradeNeeded != null) {
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request.onUpgradeNeeded.listen(onUpgradeNeeded);
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}
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if (onBlocked != null) {
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request.onBlocked.listen(onBlocked);
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}
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return _completeRequest(request);
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} catch (e, stacktrace) {
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return new Future.error(e, stacktrace);
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}
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}
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Future<IdbFactory> deleteDatabase(String name,
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{void onBlocked(Event e)$NULLABLE}) {
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try {
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var request = _deleteDatabase(name);
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if (onBlocked != null) {
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request.onBlocked.listen(onBlocked);
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}
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var completer = new Completer<IdbFactory>.sync();
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request.onSuccess.listen((e) {
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completer.complete(this);
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});
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request.onError.listen(completer.completeError);
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return completer.future;
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} catch (e, stacktrace) {
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return new Future.error(e, stacktrace);
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}
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}
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/**
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* Checks to see if getDatabaseNames is supported by the current platform.
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* TODO(terry): Should be able to always return false?
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*/
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bool get supportsDatabaseNames {
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return supported && JS('bool',
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'!!(#.getDatabaseNames || #.webkitGetDatabaseNames)', this, this);
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}
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$!MEMBERS
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}
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/**
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* Ties a request to a completer, so the completer is completed when it succeeds
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* and errors out when the request errors.
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*/
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Future<T> _completeRequest<T>(Request request) {
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var completer = new Completer<T>.sync();
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// TODO: make sure that completer.complete is synchronous as transactions
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// may be committed if the result is not processed immediately.
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request.onSuccess.listen((e) {
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T result = request.result;
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completer.complete(result);
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});
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request.onError.listen(completer.completeError);
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return completer.future;
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}
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