expo/src/main/webapp/static/plugins/tree-select/tree.js

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                template: "#tree-select",
                name: "el-tree-select",
                props: {
                    props: {
                        type: Object,
                        default: function() {
                            return {
                                value: "id",
                                label: "title",
                                children: "children"
                            }
                        }
                    },
                    options: {
                        type: Array,
                        default: function() {
                            return []
                        }
                    },
                    value: {
                        type: Number,
                        default: function() {
                            return null
                        }
                    },
                    clearable: {
                        type: Boolean,
                        default: function() {
                            return !0
                        }
                    },
                    accordion: {
                        type: Boolean,
                        default: function() {
                            return !1
                        }
                    }
                },
                data: function() {
                    return {
                        valueId: this.value,
                        valueTitle: "",
                        defaultExpandedKey: []
                    }
                },
                mounted: function() {
                    this.initHandle()
                },
                methods: {
                    initHandle: function() {
                        if (this.valueId) {
                            if (!this.$refs.selectTree.getNode(this.valueId))
                                return this.valueTitle = "",
                                    this.valueId = null,
                                    this.defaultExpandedKey = [],
                                    void this.clearSelected();
                            this.valueTitle = this.$refs.selectTree.getNode(this.valueId).data[this.props.label],
                                this.$refs.selectTree.setCurrentKey(this.valueId),
                                this.defaultExpandedKey = [this.valueId]
                        }
                        this.initScroll()
                    },
                    initScroll: function() {
                        this.$nextTick(function() {
                            var e = document.querySelectorAll(".el-scrollbar .el-select-dropdown__wrap")[0]
                                , t = document.querySelectorAll(".el-scrollbar .el-scrollbar__bar");
                            //e.style.cssText = "margin-bottom: -17px;margin-right: -17px;",
                            //     t.forEach(function(e) {
                            //         return e.style.width = 0
                            //     })
                        })
                    },
                    handleNodeClick: function(e) {
                        this.$emit("input", e[this.props.value]),
                            this.$emit("change", {
                                node: e,
                                dom: this.$refs.tsSselect
                            }),
                            this.$refs.tsSselect.blur(),
                            this.defaultExpandedKey = []
                    },
                    clearHandle: function() {
                        this.valueTitle = "",
                            this.valueId = null,
                            this.defaultExpandedKey = [],
                            this.clearSelected(),
                            this.$emit("input", null),
                            this.$emit("change", null)
                    },
                    clearSelected: function() {
                        document.querySelectorAll("#tree-option .el-tree-node").forEach(function(e) {
                            return e.classList.remove("is-current")
                        })
                    }
                },
                watch: {
                    value: function() {
                        this.valueId = this.value,
                            this.initHandle()
                    },
                    options: {
                        handler: function(e, t) {
                            var n = this;
                            this.valueId = this.value,
                                this.$nextTick(function(e) {
                                    n.initHandle()
                                })
                        },
                        immediate: !0,
                        deep: !0
                    }
                }
            }
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                    attrs: {
                        id: "selecttree"
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                    ref: "tsSselect",
                    attrs: {
                        value: e.valueTitle,
                        clearable: e.clearable
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                    on: {
                        clear: e.clearHandle
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                        "default-expand-all": "",
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});
Vue.component('tree-select', treeSelect)