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import {each, noop, some} from './utils' |
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/** |
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* Install mixin onto the Vue instance |
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* |
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* @param {Vue} Vue - Vue |
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*/ |
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export default function (Vue) { |
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const VueVersion = Number(Vue.version && Vue.version.split('.')[0]) |
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const initHook = VueVersion && VueVersion > 1 ? 'beforeCreate' : 'init' |
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return { |
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[initHook]: beforeCreate(Vue), |
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created: created(), |
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beforeDestroy: beforeDestroy(), |
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computed: { |
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$loadingSyncers: loadingStateGetter |
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}, |
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methods: { |
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$refreshSyncers: refreshSyncers |
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} |
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} |
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} |
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/* |
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* Before creation hook |
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* |
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* @param {Vue} Vue - Vue |
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*/ |
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function beforeCreate(Vue) { |
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return function () { |
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this._syncers = {} |
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const SyncCreator = Vue.$syncer.driver |
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let synced = this.$options.sync |
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if (synced) { |
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// Set up each syncer |
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each(synced, (settings, key) => { |
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this._syncers[key] = new SyncCreator(Vue, this, key, settings) |
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Object.defineProperty(this, key, { |
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get: () => { |
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return this._syncers[key] ? this._syncers[key].state : null |
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}, |
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set: noop, |
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enumerable: true, |
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configurable: true |
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}) |
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}) |
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} |
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} |
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} |
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/** |
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* After creation hook |
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*/ |
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function created() { |
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return function () { |
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// Start syncers |
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each(this._syncers, syncer => { |
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syncer.ready() |
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}) |
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} |
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} |
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/** |
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* Before destruction hook |
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*/ |
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function beforeDestroy() { |
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return function () { |
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each(this._syncers, (syncer, key) => { |
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syncer.destroy() |
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delete this._syncers[key] |
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}) |
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} |
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} |
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/** |
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* Get loading state of the syncers |
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* |
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* @returns {boolean} |
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*/ |
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function loadingStateGetter() { |
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if (Object.keys(this._syncers).length > 0) { |
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return some(this._syncers, syncer => { |
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return syncer.loading |
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}) |
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} |
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return false |
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} |
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/** |
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* Refresh syncers state |
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* |
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* @param {string|string[]} [keys] - Syncers to refresh |
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*/ |
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function refreshSyncers(keys) { |
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if (typeof keys === 'string') { |
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keys = [keys] |
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} |
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if (!keys) { |
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keys = Object.keys(this._syncers) |
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} |
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return Promise.all(keys.map(key => { |
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return this._syncers[key].refresh() |
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})) |
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} |
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t2t2 /
vue-syncers-feathers
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