mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-15 16:06:41 +03:00
Jacob Trimble
0dd64074b9
With the new style rule, we cannot have two statements on the same line. So we can no longer have an "if" on a single line and we cannot have an arrow function with a body on the same line as when it is used. This is mostly a manual change. Change-Id: I2285202dd5ecbad764308bc725e6d317ff2ee7f0
108 lines
2.3 KiB
JavaScript
108 lines
2.3 KiB
JavaScript
/**
|
|
* @license
|
|
* Copyright 2016 Google Inc.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
goog.provide('shaka.util.MultiMap');
|
|
|
|
|
|
/**
|
|
* A simple multimap template.
|
|
* @constructor
|
|
* @struct
|
|
* @template T
|
|
*/
|
|
shaka.util.MultiMap = function() {
|
|
/** @private {!Object.<string, !Array.<T>>} */
|
|
this.map_ = {};
|
|
};
|
|
|
|
|
|
/**
|
|
* Add a key, value pair to the map.
|
|
* @param {string} key
|
|
* @param {T} value
|
|
*/
|
|
shaka.util.MultiMap.prototype.push = function(key, value) {
|
|
if (this.map_.hasOwnProperty(key)) {
|
|
this.map_[key].push(value);
|
|
} else {
|
|
this.map_[key] = [value];
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* Get a list of values by key.
|
|
* @param {string} key
|
|
* @return {Array.<T>} or null if no such key exists.
|
|
*/
|
|
shaka.util.MultiMap.prototype.get = function(key) {
|
|
const list = this.map_[key];
|
|
// slice() clones the list so that it and the map can each be modified
|
|
// without affecting the other.
|
|
return list ? list.slice() : null;
|
|
};
|
|
|
|
|
|
/**
|
|
* Get a list of all values.
|
|
* @return {!Array.<T>}
|
|
*/
|
|
shaka.util.MultiMap.prototype.getAll = function() {
|
|
const list = [];
|
|
for (const key in this.map_) {
|
|
list.push.apply(list, this.map_[key]);
|
|
}
|
|
return list;
|
|
};
|
|
|
|
|
|
/**
|
|
* Remove a specific value, if it exists.
|
|
* @param {string} key
|
|
* @param {T} value
|
|
*/
|
|
shaka.util.MultiMap.prototype.remove = function(key, value) {
|
|
const list = this.map_[key];
|
|
if (!list) {
|
|
return;
|
|
}
|
|
for (let i = 0; i < list.length; ++i) {
|
|
if (list[i] == value) {
|
|
list.splice(i, 1);
|
|
--i;
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* Clear all keys and values from the multimap.
|
|
*/
|
|
shaka.util.MultiMap.prototype.clear = function() {
|
|
this.map_ = {};
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {function(string, !Array.<T>)} callback
|
|
*/
|
|
shaka.util.MultiMap.prototype.forEach = function(callback) {
|
|
for (const key in this.map_) {
|
|
callback(key, this.map_[key]);
|
|
}
|
|
};
|