607 lines
15 KiB
JavaScript
607 lines
15 KiB
JavaScript
import html2canvas from 'html2canvas';
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erpnext.HierarchyChart = class {
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/* Options:
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- doctype
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- wrapper: wrapper for the hierarchy view
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- method:
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- to get the data for each node
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- this method should return id, name, title, image, and connections for each node
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*/
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constructor(doctype, wrapper, method) {
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this.page = wrapper.page;
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this.method = method;
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this.doctype = doctype;
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this.setup_page_style();
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this.page.main.addClass('frappe-card');
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this.nodes = {};
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this.setup_node_class();
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}
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setup_page_style() {
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this.page.main.css({
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'min-height': '300px',
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'max-height': '600px',
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'overflow': 'auto',
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'position': 'relative'
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});
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}
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setup_node_class() {
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let me = this;
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this.Node = class {
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constructor({
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id, parent, parent_id, image, name, title, expandable, connections, is_root // eslint-disable-line
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}) {
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// to setup values passed via constructor
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$.extend(this, arguments[0]);
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this.expanded = 0;
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me.nodes[this.id] = this;
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me.make_node_element(this);
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if (!me.all_nodes_expanded) {
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me.setup_node_click_action(this);
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}
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me.setup_edit_node_action(this);
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}
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};
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}
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make_node_element(node) {
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let node_card = frappe.render_template('node_card', {
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id: node.id,
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name: node.name,
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title: node.title,
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image: node.image,
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parent: node.parent_id,
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connections: node.connections,
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is_mobile: false
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});
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node.parent.append(node_card);
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node.$link = $(`[id="${node.id}"]`);
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}
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show() {
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this.setup_actions();
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if ($(`[data-fieldname="company"]`).length) return;
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let me = this;
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let company = this.page.add_field({
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fieldtype: 'Link',
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options: 'Company',
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fieldname: 'company',
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placeholder: __('Select Company'),
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default: frappe.defaults.get_default('company'),
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only_select: true,
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reqd: 1,
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change: () => {
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me.company = undefined;
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$('#hierarchy-chart-wrapper').remove();
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if (company.get_value()) {
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me.company = company.get_value();
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// svg for connectors
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me.make_svg_markers();
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me.setup_hierarchy();
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me.render_root_nodes();
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me.all_nodes_expanded = false;
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} else {
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frappe.throw(__('Please select a company first.'));
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}
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}
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});
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company.refresh();
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$(`[data-fieldname="company"]`).trigger('change');
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$(`[data-fieldname="company"] .link-field`).css('z-index', 2);
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}
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setup_actions() {
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let me = this;
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this.page.clear_inner_toolbar();
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this.page.add_inner_button(__('Export'), function() {
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me.export_chart();
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});
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this.page.add_inner_button(__('Expand All'), function() {
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me.load_children(me.root_node, true);
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me.all_nodes_expanded = true;
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me.page.remove_inner_button(__('Expand All'));
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me.page.add_inner_button(__('Collapse All'), function() {
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me.setup_hierarchy();
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me.render_root_nodes();
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me.all_nodes_expanded = false;
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me.page.remove_inner_button(__('Collapse All'));
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me.setup_actions();
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});
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});
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}
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export_chart() {
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frappe.dom.freeze(__('Exporting...'));
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this.page.main.css({
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'min-height': '',
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'max-height': '',
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'overflow': 'visible',
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'position': 'fixed',
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'left': '0',
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'top': '0'
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});
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$('.node-card').addClass('exported');
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html2canvas(document.querySelector('#hierarchy-chart-wrapper'), {
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scrollY: -window.scrollY,
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scrollX: 0
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}).then(function(canvas) {
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// Export the canvas to its data URI representation
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let dataURL = canvas.toDataURL('image/png');
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// download the image
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let a = document.createElement('a');
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a.href = dataURL;
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a.download = 'hierarchy_chart';
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a.click();
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}).finally(() => {
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frappe.dom.unfreeze();
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});
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this.setup_page_style();
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$('.node-card').removeClass('exported');
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}
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setup_hierarchy() {
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if (this.$hierarchy)
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this.$hierarchy.remove();
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$(`#connectors`).empty();
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// setup hierarchy
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this.$hierarchy = $(
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`<ul class="hierarchy">
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<li class="root-level level">
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<ul class="node-children"></ul>
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</li>
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</ul>`);
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this.page.main
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.find('#hierarchy-chart')
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.empty()
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.append(this.$hierarchy);
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this.nodes = {};
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}
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make_svg_markers() {
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$('#hierarchy-chart-wrapper').remove();
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this.page.main.append(`
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<div id="hierarchy-chart-wrapper">
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<svg id="arrows" width="100%" height="100%">
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<defs>
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<marker id="arrowhead-active" viewBox="0 0 10 10" refX="3" refY="5" markerWidth="6" markerHeight="6" orient="auto" fill="var(--blue-500)">
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<path d="M 0 0 L 10 5 L 0 10 z"></path>
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</marker>
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<marker id="arrowhead-collapsed" viewBox="0 0 10 10" refX="3" refY="5" markerWidth="6" markerHeight="6" orient="auto" fill="var(--blue-300)">
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<path d="M 0 0 L 10 5 L 0 10 z"></path>
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</marker>
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<marker id="arrowstart-active" viewBox="0 0 10 10" refX="3" refY="5" markerWidth="8" markerHeight="8" orient="auto" fill="var(--blue-500)">
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<circle cx="4" cy="4" r="3.5" fill="white" stroke="var(--blue-500)"/>
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</marker>
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<marker id="arrowstart-collapsed" viewBox="0 0 10 10" refX="3" refY="5" markerWidth="8" markerHeight="8" orient="auto" fill="var(--blue-300)">
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<circle cx="4" cy="4" r="3.5" fill="white" stroke="var(--blue-300)"/>
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</marker>
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</defs>
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<g id="connectors" fill="none">
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</g>
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</svg>
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<div id="hierarchy-chart">
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</div>
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</div>`);
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}
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render_root_nodes(expanded_view=false) {
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let me = this;
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return frappe.call({
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method: me.method,
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args: {
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company: me.company
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}
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}).then(r => {
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if (r.message.length) {
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let expand_node = undefined;
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let node = undefined;
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$.each(r.message, (_i, data) => {
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if ($(`[id="${data.id}"]`).length)
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return;
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node = new me.Node({
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id: data.id,
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parent: $('<li class="child-node"></li>').appendTo(me.$hierarchy.find('.node-children')),
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parent_id: undefined,
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image: data.image,
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name: data.name,
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title: data.title,
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expandable: true,
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connections: data.connections,
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is_root: true
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});
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if (!expand_node && data.connections)
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expand_node = node;
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});
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me.root_node = expand_node;
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if (!expanded_view) {
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me.expand_node(expand_node);
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}
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}
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});
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}
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expand_node(node) {
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const is_sibling = this.selected_node && this.selected_node.parent_id === node.parent_id;
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this.set_selected_node(node);
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this.show_active_path(node);
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this.collapse_previous_level_nodes(node);
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// since the previous node collapses, all connections to that node need to be rebuilt
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// if a sibling node is clicked, connections don't need to be rebuilt
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if (!is_sibling) {
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// rebuild outgoing connections
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this.refresh_connectors(node.parent_id);
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// rebuild incoming connections
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let grandparent = $(`[id="${node.parent_id}"]`).attr('data-parent');
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this.refresh_connectors(grandparent);
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}
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if (node.expandable && !node.expanded) {
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return this.load_children(node);
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}
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}
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collapse_node() {
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if (this.selected_node.expandable) {
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this.selected_node.$children.hide();
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$(`path[data-parent="${this.selected_node.id}"]`).hide();
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this.selected_node.expanded = false;
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}
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}
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show_active_path(node) {
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// mark node parent on active path
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$(`[id="${node.parent_id}"]`).addClass('active-path');
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}
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load_children(node, deep=false) {
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if (!deep) {
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frappe.run_serially([
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() => this.get_child_nodes(node.id),
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(child_nodes) => this.render_child_nodes(node, child_nodes)
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]);
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} else {
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frappe.run_serially([
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() => frappe.dom.freeze(),
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() => this.setup_hierarchy(),
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() => this.render_root_nodes(true),
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() => this.get_all_nodes(),
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(data_list) => this.render_children_of_all_nodes(data_list),
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() => frappe.dom.unfreeze()
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]);
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}
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}
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get_child_nodes(node_id) {
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return new Promise(resolve => {
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frappe.call({
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method: this.method,
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args: {
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parent: node_id,
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company: this.company
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}
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}).then(r => resolve(r.message));
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});
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}
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render_child_nodes(node, child_nodes) {
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const last_level = this.$hierarchy.find('.level:last').index();
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const current_level = $(`[id="${node.id}"]`).parent().parent().parent().index();
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if (last_level === current_level) {
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this.$hierarchy.append(`
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<li class="level"></li>
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`);
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}
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if (!node.$children) {
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node.$children = $('<ul class="node-children"></ul>')
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.hide()
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.appendTo(this.$hierarchy.find('.level:last'));
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node.$children.empty();
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if (child_nodes) {
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$.each(child_nodes, (_i, data) => {
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if (!$(`[id="${data.id}"]`).length) {
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this.add_node(node, data);
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setTimeout(() => {
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this.add_connector(node.id, data.id);
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}, 250);
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}
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});
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}
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}
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node.$children.show();
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$(`path[data-parent="${node.id}"]`).show();
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node.expanded = true;
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}
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get_all_nodes() {
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return new Promise(resolve => {
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frappe.call({
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method: 'erpnext.utilities.hierarchy_chart.get_all_nodes',
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args: {
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method: this.method,
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company: this.company
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},
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callback: (r) => {
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resolve(r.message);
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}
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});
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});
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}
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render_children_of_all_nodes(data_list) {
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let entry = undefined;
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let node = undefined;
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while (data_list.length) {
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// to avoid overlapping connectors
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entry = data_list.shift();
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node = this.nodes[entry.parent];
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if (node) {
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this.render_child_nodes_for_expanded_view(node, entry.data);
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} else if (data_list.length) {
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data_list.push(entry);
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}
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}
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}
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render_child_nodes_for_expanded_view(node, child_nodes) {
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node.$children = $('<ul class="node-children"></ul>');
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const last_level = this.$hierarchy.find('.level:last').index();
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const node_level = $(`[id="${node.id}"]`).parent().parent().parent().index();
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if (last_level === node_level) {
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this.$hierarchy.append(`
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<li class="level"></li>
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`);
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node.$children.appendTo(this.$hierarchy.find('.level:last'));
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} else {
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node.$children.appendTo(this.$hierarchy.find('.level:eq(' + (node_level + 1) + ')'));
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}
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node.$children.hide().empty();
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if (child_nodes) {
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$.each(child_nodes, (_i, data) => {
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this.add_node(node, data);
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setTimeout(() => {
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this.add_connector(node.id, data.id);
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}, 250);
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});
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}
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node.$children.show();
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$(`path[data-parent="${node.id}"]`).show();
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node.expanded = true;
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}
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add_node(node, data) {
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return new this.Node({
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id: data.id,
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parent: $('<li class="child-node"></li>').appendTo(node.$children),
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parent_id: node.id,
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image: data.image,
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name: data.name,
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title: data.title,
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expandable: data.expandable,
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connections: data.connections,
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children: undefined
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});
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}
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add_connector(parent_id, child_id) {
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// using pure javascript for better performance
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const parent_node = document.querySelector(`#${parent_id}`);
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const child_node = document.querySelector(`#${child_id}`);
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let path = document.createElementNS('http://www.w3.org/2000/svg', 'path');
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// we need to connect right side of the parent to the left side of the child node
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const pos_parent_right = {
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x: parent_node.offsetLeft + parent_node.offsetWidth,
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y: parent_node.offsetTop + parent_node.offsetHeight / 2
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};
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const pos_child_left = {
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x: child_node.offsetLeft - 5,
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y: child_node.offsetTop + child_node.offsetHeight / 2
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};
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const connector = this.get_connector(pos_parent_right, pos_child_left);
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path.setAttribute('d', connector);
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this.set_path_attributes(path, parent_id, child_id);
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document.getElementById('connectors').appendChild(path);
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}
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get_connector(pos_parent_right, pos_child_left) {
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if (pos_parent_right.y === pos_child_left.y) {
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// don't add arcs if it's a straight line
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return "M" +
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(pos_parent_right.x) + "," + (pos_parent_right.y) + " " +
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"L"+
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(pos_child_left.x) + "," + (pos_child_left.y);
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} else {
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let arc_1 = "";
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let arc_2 = "";
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let offset = 0;
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if (pos_parent_right.y > pos_child_left.y) {
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// if child is above parent on Y axis 1st arc is anticlocwise
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// second arc is clockwise
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arc_1 = "a10,10 1 0 0 10,-10 ";
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arc_2 = "a10,10 0 0 1 10,-10 ";
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offset = 10;
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} else {
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// if child is below parent on Y axis 1st arc is clockwise
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// second arc is anticlockwise
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arc_1 = "a10,10 0 0 1 10,10 ";
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arc_2 = "a10,10 1 0 0 10,10 ";
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offset = -10;
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}
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return "M" + (pos_parent_right.x) + "," + (pos_parent_right.y) + " " +
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"L" +
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(pos_parent_right.x + 40) + "," + (pos_parent_right.y) + " " +
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arc_1 +
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"L" +
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(pos_parent_right.x + 50) + "," + (pos_child_left.y + offset) + " " +
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arc_2 +
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"L"+
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(pos_child_left.x) + "," + (pos_child_left.y);
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}
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}
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set_path_attributes(path, parent_id, child_id) {
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path.setAttribute("data-parent", parent_id);
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path.setAttribute("data-child", child_id);
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const parent = $(`[id="${parent_id}"]`);
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if (parent.hasClass('active')) {
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path.setAttribute("class", "active-connector");
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path.setAttribute("marker-start", "url(#arrowstart-active)");
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path.setAttribute("marker-end", "url(#arrowhead-active)");
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} else {
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path.setAttribute("class", "collapsed-connector");
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path.setAttribute("marker-start", "url(#arrowstart-collapsed)");
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path.setAttribute("marker-end", "url(#arrowhead-collapsed)");
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}
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}
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set_selected_node(node) {
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// remove active class from the current node
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if (this.selected_node)
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this.selected_node.$link.removeClass('active');
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// add active class to the newly selected node
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this.selected_node = node;
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node.$link.addClass('active');
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}
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collapse_previous_level_nodes(node) {
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let node_parent = $(`[id="${node.parent_id}"]`);
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let previous_level_nodes = node_parent.parent().parent().children('li');
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let node_card = undefined;
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previous_level_nodes.each(function() {
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node_card = $(this).find('.node-card');
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if (!node_card.hasClass('active-path')) {
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node_card.addClass('collapsed');
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}
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});
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}
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refresh_connectors(node_parent) {
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if (!node_parent) return;
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$(`path[data-parent="${node_parent}"]`).remove();
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frappe.run_serially([
|
|
() => this.get_child_nodes(node_parent),
|
|
(child_nodes) => {
|
|
if (child_nodes) {
|
|
$.each(child_nodes, (_i, data) => {
|
|
this.add_connector(node_parent, data.id);
|
|
});
|
|
}
|
|
}
|
|
]);
|
|
}
|
|
|
|
setup_node_click_action(node) {
|
|
let me = this;
|
|
let node_element = $(`[id="${node.id}"]`);
|
|
|
|
node_element.click(function() {
|
|
const is_sibling = me.selected_node.parent_id === node.parent_id;
|
|
|
|
if (is_sibling) {
|
|
me.collapse_node();
|
|
} else if (node_element.is(':visible')
|
|
&& (node_element.hasClass('collapsed') || node_element.hasClass('active-path'))) {
|
|
me.remove_levels_after_node(node);
|
|
me.remove_orphaned_connectors();
|
|
}
|
|
|
|
me.expand_node(node);
|
|
});
|
|
}
|
|
|
|
setup_edit_node_action(node) {
|
|
let node_element = $(`[id="${node.id}"]`);
|
|
let me = this;
|
|
|
|
node_element.find('.btn-edit-node').click(function() {
|
|
frappe.set_route('Form', me.doctype, node.id);
|
|
});
|
|
}
|
|
|
|
remove_levels_after_node(node) {
|
|
let level = $(`[id="${node.id}"]`).parent().parent().parent().index();
|
|
|
|
level = $('.hierarchy > li:eq('+ level + ')');
|
|
level.nextAll('li').remove();
|
|
|
|
let nodes = level.find('.node-card');
|
|
let node_object = undefined;
|
|
|
|
$.each(nodes, (_i, element) => {
|
|
node_object = this.nodes[element.id];
|
|
node_object.expanded = 0;
|
|
node_object.$children = undefined;
|
|
});
|
|
|
|
nodes.removeClass('collapsed active-path');
|
|
}
|
|
|
|
remove_orphaned_connectors() {
|
|
let paths = $('#connectors > path');
|
|
$.each(paths, (_i, path) => {
|
|
const parent = $(path).data('parent');
|
|
const child = $(path).data('child');
|
|
|
|
if ($(`[id="${parent}"]`).length && $(`[id="${child}"]`).length)
|
|
return;
|
|
|
|
$(path).remove();
|
|
});
|
|
}
|
|
};
|