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57 lines
1.4 KiB
57 lines
1.4 KiB
3 years ago
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export default Behavior({
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lifetimes: {
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created() {
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this.nextCallback = null
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},
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detached() {
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this.cancelNextCallback()
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},
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},
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methods: {
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/**
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* safeSetData
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* @param {Object} nextData 数据对象
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* @param {Function} callback 回调函数
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*/
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safeSetData(nextData, callback) {
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this.pendingData = Object.assign({}, this.data, nextData)
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callback = this.setNextCallback(callback)
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this.setData(nextData, () => {
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this.pendingData = null
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callback()
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})
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},
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/**
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* 设置下一回调函数
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* @param {Function} callback 回调函数
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*/
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setNextCallback(callback) {
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let active = true
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this.nextCallback = (event) => {
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if (active) {
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active = false
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this.nextCallback = null
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callback.call(this, event)
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}
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}
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this.nextCallback.cancel = () => {
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active = false
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}
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return this.nextCallback
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},
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/**
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* 取消下一回调函数
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*/
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cancelNextCallback() {
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if (this.nextCallback !== null) {
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this.nextCallback.cancel()
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this.nextCallback = null
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}
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},
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},
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})
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