Method render

app/javascript/widgets/tree.js:78–85

(treeData, itemColors)

    // treeData = ["item0", {"folder0": ["sub-item0", "sub-item1"]}, "item1"]
    // itemColors = {"path0" : wpd.Color, "path1" : wpd.Color}
    render(treeData, itemColors) {
        this.idmap = [];
        this.itemCount = 0;
        this.treeData = treeData;
        this.itemColors = itemColors;
        this.$mainElem.innerHTML = this._renderFolder(this.treeData, "", false);
        this.selectedPath = null;
    }

    _unselectAll() {
        const $folders = this.$mainElem.querySelectorAll(".tree-folder");