79 lines
2.2 KiB
JavaScript
79 lines
2.2 KiB
JavaScript
|
/**
|
||
|
|
* Copyright 2015 Google Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* limitations under the License.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
if (!Cache.prototype.add) {
|
||
|
|
Cache.prototype.add = function add(request) {
|
||
|
|
return this.addAll([request]);
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!Cache.prototype.addAll) {
|
||
|
|
Cache.prototype.addAll = function addAll(requests) {
|
||
|
|
var cache = this;
|
||
|
|
|
||
|
|
// Since DOMExceptions are not constructable:
|
||
|
|
function NetworkError(message) {
|
||
|
|
this.name = 'NetworkError';
|
||
|
|
this.code = 19;
|
||
|
|
this.message = message;
|
||
|
|
}
|
||
|
|
NetworkError.prototype = Object.create(Error.prototype);
|
||
|
|
|
||
|
|
return Promise.resolve().then(function() {
|
||
|
|
if (arguments.length < 1) throw new TypeError();
|
||
|
|
|
||
|
|
// Simulate sequence<(Request or USVString)> binding:
|
||
|
|
var sequence = [];
|
||
|
|
|
||
|
|
requests = requests.map(function(request) {
|
||
|
|
if (request instanceof Request) {
|
||
|
|
return request;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return String(request); // may throw TypeError
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
return Promise.all(
|
||
|
|
requests.map(function(request) {
|
||
|
|
if (typeof request === 'string') {
|
||
|
|
request = new Request(request);
|
||
|
|
}
|
||
|
|
|
||
|
|
var scheme = new URL(request.url).protocol;
|
||
|
|
|
||
|
|
if (scheme !== 'http:' && scheme !== 'https:') {
|
||
|
|
throw new NetworkError("Invalid scheme");
|
||
|
|
}
|
||
|
|
|
||
|
|
return fetch(request.clone());
|
||
|
|
})
|
||
|
|
);
|
||
|
|
}).then(function(responses) {
|
||
|
|
// TODO: check that requests don't overwrite one another
|
||
|
|
// (don't think this is possible to polyfill due to opaque responses)
|
||
|
|
return Promise.all(
|
||
|
|
responses.map(function(response, i) {
|
||
|
|
return cache.put(requests[i], response);
|
||
|
|
})
|
||
|
|
);
|
||
|
|
}).then(function() {
|
||
|
|
return undefined;
|
||
|
|
});
|
||
|
|
};
|
||
|
|
}
|