1 | function broadcast(componentName, eventName, params) {
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2 | this.$children.forEach(child => {
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3 | var name = child.$options.componentName;
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4 |
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5 | if (name === componentName) {
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6 | child.$emit.apply(child, [eventName].concat(params));
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7 | } else {
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8 | broadcast.apply(child, [componentName, eventName].concat([params]));
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9 | }
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10 | });
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11 | }
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12 | export default {
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13 | methods: {
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14 | dispatch(componentName, eventName, params) {
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15 | var parent = this.$parent || this.$root;
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16 | var name = parent.$options.componentName;
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17 |
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18 | while (parent && (!name || name !== componentName)) {
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19 | parent = parent.$parent;
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20 |
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21 | if (parent) {
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22 | name = parent.$options.componentName;
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23 | }
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24 | }
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25 | if (parent) {
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26 | parent.$emit.apply(parent, [eventName].concat(params));
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27 | }
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28 | },
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29 | broadcast(componentName, eventName, params) {
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30 | broadcast.call(this, componentName, eventName, params);
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31 | }
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32 | }
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33 | };
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