mirror of https://github.com/octoleo/plantuml.git
85 lines
2.1 KiB
JavaScript
85 lines
2.1 KiB
JavaScript
(function (){
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/**
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* @param {SVG.G} node
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* @param {SVG.G} topG
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* @return {{node: Set<SVG.G>, edges:Set<SVG.G>}}
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*/
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function getEdgesAndDistance1Nodes(node, topG) {
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const nodeName = node.attr("id").match(/elem_(.+)/)[1];
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const selector = "[id^=link_]"
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const candidates = topG.find(selector)
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let edges = new Set();
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let nodes = new Set();
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for (let link of candidates) {
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const res = link.attr("id").match(/link_([A-Za-z\d]+)_([A-Za-z\d]+)/);
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if (res && res.length==3) {
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const N1 = res[1];
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const N2 = res[2];
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if (N1==nodeName) {
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const N2selector = `[id^=elem_${N2}]`;
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nodes.add(topG.findOne(N2selector));
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edges.add(link);
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} else if (N2==nodeName) {
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const N1selector = `[id^=elem_${N1}]`;
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nodes.add(topG.findOne(N1selector));
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edges.add(link);
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}
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}
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}
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return {
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"nodes" : nodes,
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"edges" : edges
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};
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}
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/**
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* @param {SVG.G} node
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* @param {function(SVG.Dom)}
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* @return {{node: Set<SVG.G>, edges:Set<SVG.G>}}
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*/
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function walk(node, func) {
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let children = node.children();
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for (let child of children) {
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walk(child, func)
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}
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func(node);
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}
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let s = SVG("svg > g")
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/**
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* @param {SVGElement} domEl
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* @return {{SVGElement}}
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*/
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function findEnclosingG(domEl) {
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let curEl = domEl;
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while (curEl.nodeName != "g") {
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curEl = curEl.parentElement;
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}
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return curEl;
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}
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function onMouseOverElem(domEl) {
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let e = SVG(findEnclosingG(domEl.target));
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walk(s,
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e => { if (SVG(e)!=s)
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SVG(e).attr('data-mouse-over-selected',"false");
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});
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walk(e, e => SVG(e).attr('data-mouse-over-selected',"true"));
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let {nodes, edges} = getEdgesAndDistance1Nodes(SVG(e), s);
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for (let node of nodes) {
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walk(node, e => SVG(e).attr('data-mouse-over-selected',"true"));
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}
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for (let edge of edges) {
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walk(edge, e => SVG(e).attr('data-mouse-over-selected',"true"));
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}
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}
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function onMouseOutElem(domEl) {
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let e = SVG(findEnclosingG(domEl.target));
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walk(s, e => e.attr('data-mouse-over-selected',null));
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}
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let gs = s.find("g[id^=elem_]");
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for (let g of gs) {
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g.on("mouseover", onMouseOverElem);
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g.on("mouseout", onMouseOutElem);
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}
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})();
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