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96 lines
3.1 KiB
TypeScript
96 lines
3.1 KiB
TypeScript
/*
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Copyright 2016 OpenMarket Ltd
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Copyright 2019, 2020 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import {Action, Actions} from "./types";
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interface IEncodedActions {
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notify: boolean;
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sound?: string;
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highlight?: boolean;
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}
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export class NotificationUtils {
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// Encodes a dictionary of {
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// "notify": true/false,
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// "sound": string or undefined,
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// "highlight: true/false,
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// }
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// to a list of push actions.
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static encodeActions(action: IEncodedActions) {
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const notify = action.notify;
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const sound = action.sound;
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const highlight = action.highlight;
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if (notify) {
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const actions: Action[] = [Actions.Notify];
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if (sound) {
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actions.push({"set_tweak": "sound", "value": sound});
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}
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if (highlight) {
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actions.push({"set_tweak": "highlight"});
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} else {
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actions.push({"set_tweak": "highlight", "value": false});
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}
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return actions;
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} else {
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return [Actions.DontNotify];
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}
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}
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// Decode a list of actions to a dictionary of {
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// "notify": true/false,
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// "sound": string or undefined,
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// "highlight: true/false,
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// }
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// If the actions couldn't be decoded then returns null.
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static decodeActions(actions: Action[]): IEncodedActions {
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let notify = false;
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let sound = null;
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let highlight = false;
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for (let i = 0; i < actions.length; ++i) {
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const action = actions[i];
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if (action === Actions.Notify) {
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notify = true;
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} else if (action === Actions.DontNotify) {
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notify = false;
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} else if (typeof action === "object") {
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if (action.set_tweak === "sound") {
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sound = action.value;
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} else if (action.set_tweak === "highlight") {
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highlight = action.value;
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} else {
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// We don't understand this kind of tweak, so give up.
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return null;
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}
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} else {
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// We don't understand this kind of action, so give up.
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return null;
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}
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}
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if (highlight === undefined) {
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// If a highlight tweak is missing a value then it defaults to true.
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highlight = true;
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}
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const result: IEncodedActions = { notify, highlight };
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if (sound !== null) {
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result.sound = sound;
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}
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return result;
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}
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}
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