diff options
author | Alex Yatskov <alex@foosoft.net> | 2020-06-27 19:04:19 -0700 |
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committer | Alex Yatskov <alex@foosoft.net> | 2020-06-27 19:04:19 -0700 |
commit | 88af95d20bfdbeb59d44bf0f0d46e772a329f839 (patch) | |
tree | d1dfa7268f274fed32061221c0f030e3647f9ae2 /ext/fg/js/frontend-api-sender.js | |
parent | 19197a9a5d6a1f54a179d894577dfac513b97401 (diff) | |
parent | 0a6c08d0f53090a4ad48663bc5846ddae5723d52 (diff) |
Merge branch 'master' into testing
Diffstat (limited to 'ext/fg/js/frontend-api-sender.js')
-rw-r--r-- | ext/fg/js/frontend-api-sender.js | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/ext/fg/js/frontend-api-sender.js b/ext/fg/js/frontend-api-sender.js deleted file mode 100644 index 4dcde638..00000000 --- a/ext/fg/js/frontend-api-sender.js +++ /dev/null @@ -1,128 +0,0 @@ -/* - * Copyright (C) 2019-2020 Yomichan Authors - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <https://www.gnu.org/licenses/>. - */ - - -class FrontendApiSender { - constructor(target) { - this._target = target; - this._senderId = yomichan.generateId(16); - this._ackTimeout = 3000; // 3 seconds - this._responseTimeout = 10000; // 10 seconds - this._callbacks = new Map(); - this._disconnected = false; - this._nextId = 0; - this._port = null; - } - - invoke(action, params) { - if (this._disconnected) { - // attempt to reconnect the next time - this._disconnected = false; - return Promise.reject(new Error('Disconnected')); - } - - if (this._port === null) { - this._createPort(); - } - - const id = `${this._nextId}`; - ++this._nextId; - - return new Promise((resolve, reject) => { - const info = {id, resolve, reject, ack: false, timer: null}; - this._callbacks.set(id, info); - info.timer = setTimeout(() => this._onError(id, 'Timeout (ack)'), this._ackTimeout); - - this._port.postMessage({id, action, params, target: this._target, senderId: this._senderId}); - }); - } - - _createPort() { - this._port = chrome.runtime.connect(null, {name: 'backend-api-forwarder'}); - this._port.onDisconnect.addListener(this._onDisconnect.bind(this)); - this._port.onMessage.addListener(this._onMessage.bind(this)); - } - - _onMessage({type, id, data, senderId}) { - if (senderId !== this._senderId) { return; } - switch (type) { - case 'ack': - this._onAck(id); - break; - case 'result': - this._onResult(id, data); - break; - } - } - - _onDisconnect() { - this._disconnected = true; - this._port = null; - - for (const id of this._callbacks.keys()) { - this._onError(id, 'Disconnected'); - } - } - - _onAck(id) { - const info = this._callbacks.get(id); - if (typeof info === 'undefined') { - yomichan.logWarning(new Error(`ID ${id} not found for ack`)); - return; - } - - if (info.ack) { - yomichan.logWarning(new Error(`Request ${id} already ack'd`)); - return; - } - - info.ack = true; - clearTimeout(info.timer); - info.timer = setTimeout(() => this._onError(id, 'Timeout (response)'), this._responseTimeout); - } - - _onResult(id, data) { - const info = this._callbacks.get(id); - if (typeof info === 'undefined') { - yomichan.logWarning(new Error(`ID ${id} not found`)); - return; - } - - if (!info.ack) { - yomichan.logWarning(new Error(`Request ${id} not ack'd`)); - return; - } - - this._callbacks.delete(id); - clearTimeout(info.timer); - info.timer = null; - - if (typeof data.error !== 'undefined') { - info.reject(jsonToError(data.error)); - } else { - info.resolve(data.result); - } - } - - _onError(id, reason) { - const info = this._callbacks.get(id); - if (typeof info === 'undefined') { return; } - this._callbacks.delete(id); - info.timer = null; - info.reject(new Error(reason)); - } -} |