This commit is contained in:
梁灏 2017-05-18 18:23:39 +08:00
parent a28bc982af
commit 933afc7a2c
3 changed files with 210 additions and 115 deletions

View file

@ -1,134 +1,193 @@
<!--<template>-->
<!--<Row>-->
<!--<i-col span="4">-->
<!--<Button @click="handleLoad">load</Button>-->
<!--{{ v1 }}-->
<!--</i-col>-->
<!--<i-col span="4">-->
<!--<Cascader :data="data2" filterable v-model="v1" style="width: 200px;"></Cascader>-->
<!--&lt;!&ndash;<Cascader :data="data2" filterable v-model="v1" :loadData="loadData"></Cascader>&ndash;&gt;-->
<!--</i-col>-->
<!--</Row>-->
<!--</template>-->
<!--<script>-->
<!--export default {-->
<!--data () {-->
<!--return {-->
<!--v1: [],-->
<!--data2: [-->
<!--{-->
<!--value: 'zhejiang',-->
<!--label: '浙江',-->
<!--children: [],-->
<!--loading: false-->
<!--},-->
<!--{-->
<!--value: 'jiangsu',-->
<!--label: '江苏',-->
<!--children: [{-->
<!--value: 'nanjing',-->
<!--label: '南京',-->
<!--children: [-->
<!--{-->
<!--value: 'zhonghuamen',-->
<!--label: '中华门'-->
<!--},-->
<!--{-->
<!--value: 'v1',-->
<!--label: 'v111'-->
<!--},-->
<!--{-->
<!--value: 'v2',-->
<!--label: 'v2222'-->
<!--},-->
<!--{-->
<!--value: 'v3',-->
<!--label: 'v333'-->
<!--},-->
<!--{-->
<!--value: 'v4',-->
<!--label: 'v4444'-->
<!--},-->
<!--{-->
<!--value: 'v5',-->
<!--label: 'v555'-->
<!--},-->
<!--{-->
<!--value: 'v6',-->
<!--label: 'v666'-->
<!--},-->
<!--{-->
<!--value: 'v7',-->
<!--label: 'v777'-->
<!--}-->
<!--]-->
<!--}]-->
<!--}-->
<!--],-->
<!--data3: [{-->
<!--value: 'beijing',-->
<!--label: '北京',-->
<!--children: [-->
<!--{-->
<!--value: 'gugong',-->
<!--label: '故宫'-->
<!--},-->
<!--{-->
<!--value: 'tiantan',-->
<!--label: '天坛'-->
<!--},-->
<!--{-->
<!--value: 'wangfujing',-->
<!--label: '王府井'-->
<!--}-->
<!--]-->
<!--}, {-->
<!--value: 'jiangsu',-->
<!--label: '江苏',-->
<!--children: [-->
<!--{-->
<!--value: 'nanjing',-->
<!--label: '南京',-->
<!--children: [-->
<!--{-->
<!--value: 'fuzimiao',-->
<!--label: '夫子庙',-->
<!--}-->
<!--]-->
<!--},-->
<!--{-->
<!--value: 'suzhou',-->
<!--label: '苏州',-->
<!--children: [-->
<!--{-->
<!--disabled: true,-->
<!--value: 'zhuozhengyuan',-->
<!--label: '拙政园',-->
<!--},-->
<!--{-->
<!--value: 'shizilin',-->
<!--label: '狮子林',-->
<!--}-->
<!--]-->
<!--}-->
<!--],-->
<!--}]-->
<!--}-->
<!--},-->
<!--methods: {-->
<!--handleLoad () {-->
<!--this.data2[0].loading = !this.data2[0].loading;-->
<!--},-->
<!--loadData (item, cb) {-->
<!--item.loading = true;-->
<!--setTimeout(() => {-->
<!--if (item.value === 'zhejiang') {-->
<!--item.children = [-->
<!--{-->
<!--value: 'hangzhou',-->
<!--label: '杭州',-->
<!--loading: false,-->
<!--children: []-->
<!--}-->
<!--];-->
<!--} else if (item.value === 'hangzhou') {-->
<!--item.children = [-->
<!--{-->
<!--value: 'ali',-->
<!--label: '阿里巴巴'-->
<!--}-->
<!--];-->
<!--}-->
<!--item.loading = false;-->
<!--cb();-->
<!--}, 1000);-->
<!--}-->
<!--}-->
<!--}-->
<!--</script>-->
<template> <template>
<Row> <Cascader :data="data4" :load-data="loadData" style="width: 200px;"></Cascader>
<i-col span="4">
<Button @click="handleLoad">load</Button>
{{ v1 }}
</i-col>
<i-col span="4">
<Cascader :data="data2" filterable v-model="v1" style="width: 200px;"></Cascader>
<!--<Cascader :data="data2" filterable v-model="v1" :loadData="loadData"></Cascader>-->
</i-col>
</Row>
</template> </template>
<script> <script>
export default { export default {
data () { data () {
return { return {
v1: [], data4: [
data2: [
{ {
value: 'zhejiang', value: 'beijing',
label: '浙江', label: '北京',
children: [], children: [],
loading: false loading: false
}, },
{ {
value: 'jiangsu', value: 'hangzhou',
label: '江苏', label: '杭州',
children: [{ children: [],
value: 'nanjing', loading:false
label: '南京',
children: [
{
value: 'zhonghuamen',
label: '中华门'
},
{
value: 'v1',
label: 'v111'
},
{
value: 'v2',
label: 'v2222'
},
{
value: 'v3',
label: 'v333'
},
{
value: 'v4',
label: 'v4444'
},
{
value: 'v5',
label: 'v555'
},
{
value: 'v6',
label: 'v666'
},
{
value: 'v7',
label: 'v777'
} }
] ]
}]
}
],
data3: [{
value: 'beijing',
label: '北京',
children: [
{
value: 'gugong',
label: '故宫'
},
{
value: 'tiantan',
label: '天坛'
},
{
value: 'wangfujing',
label: '王府井'
}
]
}, {
value: 'jiangsu',
label: '江苏',
children: [
{
value: 'nanjing',
label: '南京',
children: [
{
value: 'fuzimiao',
label: '夫子庙',
}
]
},
{
value: 'suzhou',
label: '苏州',
children: [
{
disabled: true,
value: 'zhuozhengyuan',
label: '拙政园',
},
{
value: 'shizilin',
label: '狮子林',
}
]
}
],
}]
} }
}, },
methods: { methods: {
handleLoad () { loadData (item, callback) {
this.data2[0].loading = !this.data2[0].loading;
},
loadData (item, cb) {
item.loading = true; item.loading = true;
setTimeout(() => { setTimeout(() => {
if (item.value === 'zhejiang') { if (item.value === 'beijing') {
item.children = [ item.children = [
{ {
value: 'hangzhou', value: 'talkingdata',
label: '杭州', label: 'TalkingData'
loading: false, },
children: [] {
value: 'baidu',
label: '百度'
},
{
value: 'sina',
label: '新浪'
} }
]; ];
} else if (item.value === 'hangzhou') { } else if (item.value === 'hangzhou') {
@ -136,11 +195,15 @@
{ {
value: 'ali', value: 'ali',
label: '阿里巴巴' label: '阿里巴巴'
},
{
value: '163',
label: '网易'
} }
]; ];
} }
item.loading = false; item.loading = false;
cb(); callback();
}, 1000); }, 1000);
} }
} }

View file

@ -128,7 +128,9 @@
tmpSelected: [], tmpSelected: [],
updatingValue: false, // to fix set value in changeOnSelect type updatingValue: false, // to fix set value in changeOnSelect type
currentValue: this.value, currentValue: this.value,
query: '' query: '',
validDataStr: '',
isLoadedChildren: false // #950
}; };
}, },
computed: { computed: {
@ -270,9 +272,31 @@
}, },
handleFocus () { handleFocus () {
this.$refs.input.focus(); this.$refs.input.focus();
},
// loading data updateSelect
getValidData (data) {
function deleteData (item) {
const new_item = Object.assign({}, item);
if ('loading' in new_item) {
delete new_item.loading;
}
if ('__value' in new_item) {
delete new_item.__value;
}
if ('__label' in new_item) {
delete new_item.__label;
}
if ('children' in new_item && new_item.children.length) {
new_item.children = new_item.children.map(i => deleteData(i));
}
return new_item;
}
return data.map(item => deleteData(item));
} }
}, },
created () { created () {
this.validDataStr = JSON.stringify(this.getValidData(this.data));
this.$on('on-result-change', (params) => { this.$on('on-result-change', (params) => {
// lastValue: is click the final val // lastValue: is click the final val
// fromInit: is this emit from update value // fromInit: is this emit from update value
@ -332,8 +356,15 @@
data: { data: {
deep: true, deep: true,
handler () { handler () {
const validDataStr = JSON.stringify(this.getValidData(this.data));
if (validDataStr !== this.validDataStr) {
this.validDataStr = validDataStr;
if (!this.isLoadedChildren) {
this.$nextTick(() => this.updateSelected()); this.$nextTick(() => this.updateSelected());
} }
this.isLoadedChildren = false;
}
}
} }
} }
}; };

View file

@ -61,6 +61,7 @@
const cascader = findComponentUpward(this, 'Cascader'); const cascader = findComponentUpward(this, 'Cascader');
if (cascader && cascader.loadData) { if (cascader && cascader.loadData) {
cascader.loadData(item, () => { cascader.loadData(item, () => {
cascader.isLoadedChildren = true;
this.handleTriggerItem(item); this.handleTriggerItem(item);
}); });
return; return;