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18 lines
777 B
18 lines
777 B
12 months ago
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// 获取父组件的参数,因为支付宝小程序不支持provide/inject的写法
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// this.$parent在非H5中,可以准确获取到父组件,但是在H5中,需要多次this.$parent.$parent.xxx
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// 这里默认值等于undefined有它的含义,因为最顶层元素(组件)的$parent就是undefined,意味着不传name
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// 值(默认为undefined),就是查找最顶层的$parent
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export default function $parent(name = undefined) {
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let parent = this.$parent;
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// 通过while历遍,这里主要是为了H5需要多层解析的问题
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while (parent) {
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// 父组件
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if (parent.$options && parent.$options.name !== name) {
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// 如果组件的name不相等,继续上一级寻找
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parent = parent.$parent;
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} else {
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return parent;
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}
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}
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return false;
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}
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