128 lines
3.4 KiB
Vue
128 lines
3.4 KiB
Vue
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<template>
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<view class="u-tree-node" :style="{ paddingLeft: depth * 20 + 'px' }">
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<view class="u-tree-node-content" @click="toggle">
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<!-- <text v-if="hasChildren" class="u-tree-node-toggle">
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{{ node.expanded ? '▼' : '▶' }}
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</text> -->
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<up-icon v-if="hasChildren" class="u-tree-node-toggle"
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:name="node.expanded ? 'arrow-down-fill' : 'play-right-fill'" size="12" />
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<up-checkbox
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v-if="showCheckbox"
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usedAlone
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:size="12"
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:checked="node.checked"
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@change="toggleCheck"
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style="margin-right: 10px;"
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/>
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<slot :nodeData="node" :level="depth + 1">
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{{ node[props.label] }}
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</slot>
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</view>
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<view v-if="hasChildren && (node.expanded === undefined ? true : node.expanded)"
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class="u-tree-node-children"
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:style="{ paddingLeft: (depth + 1) * 20 + 'px' }">
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<tree-node
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v-for="child in node[props.children]"
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:key="child[props.nodeKey]"
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:node="child"
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:props="props"
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:show-checkbox="showCheckbox"
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:check-strictly="checkStrictly"
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:expand-on-click-node="expandOnClickNode"
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:depth="depth + 1"
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@node-click="$emit('node-click', $event)"
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@check-change="$emit('check-change', $event)">
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<template #default="{ nodeData, level }">
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<slot name="default" :nodeData="nodeData" :level="level"></slot>
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</template>
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</tree-node>
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</view>
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</view>
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</template>
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<script>
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export default {
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name: 'tree-node',
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props: {
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node: {
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type: Object,
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required: true
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},
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props: {
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type: Object,
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required: true
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},
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showCheckbox: {
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type: Boolean,
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default: false
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},
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checkStrictly: {
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type: Boolean,
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default: false
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},
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expandOnClickNode: {
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type: Boolean,
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default: true
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},
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depth: {
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type: Number,
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default: 0
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}
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},
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computed: {
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hasChildren() {
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return this.node[this.props.children] && this.node[this.props.children].length > 0;
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},
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isExpanded() {
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return this.node.expanded === undefined ? false : this.node.expanded;
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}
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},
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emits: ['node-click', 'check-change'],
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methods: {
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toggle() {
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if (this.expandOnClickNode && this.hasChildren) {
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this.node.expanded = !this.node.expanded;
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}
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this.$emit('node-click', this.node);
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},
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toggleCheck(checked) {
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this.node.checked = checked;
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if (!this.checkStrictly) {
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this.updateChildCheckStatus(this.node, checked);
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this.updateParentCheckStatus(this.node);
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}
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this.$emit('check-change', this.node);
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},
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updateChildCheckStatus(node, checked) {
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if (node[this.props.children]) {
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node[this.props.children].forEach(child => {
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child.checked = checked;
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this.updateChildCheckStatus(child, checked);
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});
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}
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},
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updateParentCheckStatus(node) {
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let parent = this.$parent;
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while (parent && parent.node) {
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const allChecked = parent.node[this.props.children].every(
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child => child.checked
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);
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parent.node.checked = allChecked;
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parent = parent.$parent;
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}
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}
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}
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};
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</script>
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<style scoped>
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.u-tree-node-content {
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display: flex;
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flex-direction: row;
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align-items: center;
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padding-left: 20px;
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}
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.u-tree-node-toggle {
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margin-right: 5px;
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}
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</style>
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