зеркало из https://github.com/mozilla/gecko-dev.git
55 строки
2.0 KiB
JavaScript
55 строки
2.0 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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const ObservableObject = require("devtools/shared/observable-object");
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const {Connection} = require("devtools/client/connection-manager");
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const _knownConnectionStores = new WeakMap();
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let ConnectionStore;
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module.exports = ConnectionStore = function(connection) {
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// If we already know about this connection,
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// let's re-use the existing store.
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if (_knownConnectionStores.has(connection)) {
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return _knownConnectionStores.get(connection);
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}
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_knownConnectionStores.set(connection, this);
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ObservableObject.call(this, {status:null,host:null,port:null});
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this.destroy = this.destroy.bind(this);
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this._feedStore = this._feedStore.bind(this);
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this._connection = connection;
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this._connection.once(Connection.Events.DESTROYED, this.destroy);
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this._connection.on(Connection.Events.STATUS_CHANGED, this._feedStore);
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this._connection.on(Connection.Events.PORT_CHANGED, this._feedStore);
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this._connection.on(Connection.Events.HOST_CHANGED, this._feedStore);
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this._feedStore();
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return this;
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}
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ConnectionStore.prototype = {
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destroy: function() {
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if (this._connection) {
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// While this.destroy is bound using .once() above, that event may not
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// have occurred when the ConnectionStore client calls destroy, so we
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// manually remove it here.
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this._connection.off(Connection.Events.DESTROYED, this.destroy);
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this._connection.off(Connection.Events.STATUS_CHANGED, this._feedStore);
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this._connection.off(Connection.Events.PORT_CHANGED, this._feedStore);
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this._connection.off(Connection.Events.HOST_CHANGED, this._feedStore);
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_knownConnectionStores.delete(this._connection);
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this._connection = null;
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}
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},
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_feedStore: function() {
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this.object.status = this._connection.status;
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this.object.host = this._connection.host;
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this.object.port = this._connection.port;
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}
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}
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