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Improve Tree:
1. Add props: renderContent, highlightCurrent 2. Fix Bug: tree do not change when data changed
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@@ -1,29 +1,42 @@
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<template>
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<div class="el-tree-node"
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:class="{ expanded: childrenRendered && expanded }">
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<div class="el-tree-node__content" :style="{ 'padding-left': node.level * 16 + 'px' }"
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@click="handleExpandIconClick">
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<span class="el-tree-node__expand-icon"
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:class="{ 'is-leaf': node.isLeaf, expanded: !node.isLeaf && expanded }"
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></span>
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<el-checkbox v-if="showCheckbox" :indeterminate="node.indeterminate" v-model="node.checked" @change="handleCheckChange" @click.native="handleUserClick"></el-checkbox>
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@click.stop="handleClick"
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:class="{ expanded: childNodeRendered && expanded, 'is-current': $tree.currentNode === _self }">
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<div class="el-tree-node__content"
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:style="{ 'padding-left': node.level * 16 + 'px' }"
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@click="handleExpandIconClick">
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<span
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class="el-tree-node__expand-icon"
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:class="{ 'is-leaf': node.isLeaf, expanded: !node.isLeaf && expanded }">
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</span>
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<el-checkbox
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v-if="showCheckbox"
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v-model="node.checked"
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:indeterminate="node.indeterminate"
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@change="handleCheckChange"
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@click.native="handleUserClick">
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</el-checkbox>
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<span
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v-if="node.loading"
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class="el-tree-node__icon el-icon-loading"
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>
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class="el-tree-node__icon el-icon-loading">
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</span>
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<span class="el-tree-node__label" v-html="node.label"></span>
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<node-content :node="node"></node-content>
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</div>
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<collapse-transition>
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<div class="el-tree-node__children"
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<div
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class="el-tree-node__children"
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v-show="expanded">
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<el-tree-node v-for="child in node.children" :node="child"></el-tree-node>
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<el-tree-node
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:render-content="renderContent"
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v-for="child in node.childNodes"
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:node="child">
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</el-tree-node>
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</div>
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</collapse-transition>
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</div>
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</template>
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<script type="text/ecmascript-6">
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<script type="text/jsx">
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import CollapseTransition from './transition';
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export default {
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@@ -34,18 +47,35 @@
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default() {
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return {};
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}
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}
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},
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props: {},
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renderContent: Function
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},
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components: {
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CollapseTransition
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CollapseTransition,
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NodeContent: {
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props: {
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node: {
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required: true
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}
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},
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render(h) {
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const parent = this.$parent;
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return (
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parent.renderContent
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? parent.renderContent.call(parent._renderProxy, h, { _self: parent.$parent.$vnode.context, node: this.node })
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: <span class="el-tree-node__label">{ this.node.label }</span>
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);
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}
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}
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},
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data() {
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return {
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$tree: null,
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expanded: false,
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childrenRendered: false,
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childNodeRendered: false,
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showCheckbox: false,
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oldChecked: null,
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oldIndeterminate: null
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@@ -71,21 +101,25 @@
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this.indeterminate = indeterminate;
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},
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handleClick() {
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this.$tree.currentNode = this;
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},
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handleExpandIconClick(event) {
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let target = event.target;
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if (target.tagName.toUpperCase() !== 'DIV' &&
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target.parentNode.nodeName.toUpperCase() !== 'DIV' ||
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target.nodeName.toUpperCase() === 'LABLE') return;
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target.parentNode.nodeName.toUpperCase() !== 'DIV' ||
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target.nodeName.toUpperCase() === 'LABEL') return;
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if (this.expanded) {
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this.node.collapse();
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this.expanded = false;
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} else {
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this.node.expand(() => {
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this.expanded = true;
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this.childrenRendered = true;
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this.childNodeRendered = true;
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});
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}
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this.$tree.$emit('node-click', this.node.data);
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this.$tree.$emit('node-click', this.node.data, this.node, this);
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},
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handleUserClick() {
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@@ -111,6 +145,12 @@
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}
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const tree = this.$tree;
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const props = this.props || {};
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const childrenKey = props['children'] || 'children';
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this.$watch(`node.data.${childrenKey}`, () => {
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this.node.updateChildren();
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});
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if (!tree) {
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console.warn('Can not find node\'s tree.');
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