function broadcast(componentName, eventName, params) {
|
this.$children.forEach(child => {
|
var name = child.$options.componentName;
|
if (!name) {
|
try {
|
name =
|
child.$el.attributes &&
|
child.$el.attributes["name"] &&
|
child.$el.attributes.name.value;
|
} catch (e) {
|
console.log(e.messsage);
|
}
|
}
|
|
if (name === componentName) {
|
child.$emit.apply(child, [eventName].concat(params));
|
} else {
|
broadcast.apply(child, [componentName, eventName].concat([params]));
|
}
|
});
|
}
|
|
// 查找组件
|
function findChild(componentName) {
|
var existChild = null;
|
this.$children.forEach(child => {
|
var name = child.$options.name || child.$options.componentName;
|
if (!name) {
|
try {
|
name =
|
child.$el.attributes &&
|
child.$el.attributes["name"] &&
|
child.$el.attributes.name.value;
|
} catch (e) {
|
console.log(e.messsage);
|
}
|
}
|
|
if (name === componentName) {
|
existChild = child;
|
return false;
|
} else {
|
var _subExistsChild = findChild.apply(child, [componentName]);
|
if (_subExistsChild) {
|
existChild = _subExistsChild;
|
}
|
}
|
});
|
|
return existChild;
|
}
|
export default {
|
methods: {
|
dispatch(componentName, eventName, params) {
|
var parent = this.$parent || this.$root;
|
var name = parent.$options.componentName;
|
|
while (parent && (!name || name !== componentName)) {
|
parent = parent.$parent;
|
|
if (parent) {
|
name = parent.$options.componentName;
|
}
|
}
|
if (parent) {
|
parent.$emit.apply(parent, [eventName].concat(params));
|
}
|
},
|
broadcast(componentName, eventName, params) {
|
broadcast.call(this, componentName, eventName, params);
|
},
|
findChild(componentName) {
|
var root = this.$root;
|
return findChild.call(root, componentName);
|
}
|
}
|
};
|