behavior.js
1.5 KB
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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
function setAsync(context, data) {
return new Promise(function (resolve) {
context.setData(data, resolve);
});
}
exports.behavior = Behavior({
created: function () {
var _this = this;
if (!this.$options) {
return;
}
var cache = {};
var computed = this.$options().computed;
var keys = Object.keys(computed);
this.calcComputed = function () {
var needUpdate = {};
keys.forEach(function (key) {
var value = computed[key].call(_this);
if (cache[key] !== value) {
cache[key] = value;
needUpdate[key] = value;
}
});
return needUpdate;
};
},
attached: function () {
this.set();
},
methods: {
// set data and set computed data
set: function (data, callback) {
var _this = this;
var stack = [];
if (data) {
stack.push(setAsync(this, data));
}
if (this.calcComputed) {
stack.push(setAsync(this, this.calcComputed()));
}
return Promise.all(stack).then(function (res) {
if (callback && typeof callback === 'function') {
callback.call(_this);
}
return res;
});
}
}
});