define(["d3"], function (d3) { return function (config, linkScale, sidebar, router) { var self = this var nodes, links var svg, vis, link, node var nodesDict, linksDict var zoomBehavior var force var el var doAnimation = false var LINK_DISTANCE = 70 function graphDiameter(nodes) { return Math.sqrt(nodes.length / Math.PI) * LINK_DISTANCE } function savePositions() { if (!localStorageTest()) return var save = nodes.map( function (d) { return { id: d.id, x: d.x, y: d.y } }) localStorage.setItem("graph/nodeposition", JSON.stringify(save)) } function nodeName(d) { if (d.node && d.node.nodeinfo) return d.node.nodeinfo.hostname else return d.id } function dragstart(d) { d3.event.sourceEvent.stopPropagation() d.fixed |= 2 } function dragmove(d) { d.px = d3.event.x d.py = d3.event.y force.resume() } function dragend(d) { d3.event.sourceEvent.stopPropagation() d.fixed &= 1 } function animatePanzoom(translate, scale) { zoomBehavior.scale(scale) zoomBehavior.translate(translate) var el = vis if (doAnimation) el = el.transition().duration(500) el.attr("transform", "translate(" + translate + ") " + "scale(" + scale + ")") } function panzoom() { var translate = zoomBehavior.translate() var scale = zoomBehavior.scale() vis.attr("transform", "translate(" + translate + ") " + "scale(" + scale + ")") } function getSize() { var sidebarWidth = sidebar.getWidth() var width = el.offsetWidth - sidebarWidth var height = el.offsetHeight return [width, height] } function panzoomTo(a, b) { var sidebarWidth = sidebar.getWidth() var size = getSize() var targetWidth = Math.max(1, b[0] - a[0]) var targetHeight = Math.max(1, b[1] - a[1]) var scaleX = size[0] / targetWidth var scaleY = size[1] / targetHeight var scaleMax = zoomBehavior.scaleExtent()[1] var scale = 0.5 * Math.min(scaleMax, Math.min(scaleX, scaleY)) var centroid = [(a[0] + b[0]) / 2, (a[1] + b[1]) / 2] var x = -centroid[0] * scale + size[0] / 2 var y = -centroid[1] * scale + size[1] / 2 var translate = [x + sidebarWidth, y] animatePanzoom(translate, scale) } function tickEvent() { link.selectAll("line") .attr("x1", function(d) { return d.source.x }) .attr("y1", function(d) { return d.source.y }) .attr("x2", function(d) { return d.target.x }) .attr("y2", function(d) { return d.target.y }) node .attr("cx", function(d) { return d.x }) .attr("cy", function(d) { return d.y }) } el = document.createElement("div") el.classList.add("graph") self.div = el zoomBehavior = d3.behavior.zoom() .scaleExtent([1 / 3, 3]) .on("zoom", panzoom) .translate([sidebar.getWidth(), 0]) svg = d3.select(el).append("svg") .attr("pointer-events", "all") .call(zoomBehavior) vis = svg.append("g") vis.append("g").attr("class", "links") vis.append("g").attr("class", "nodes") force = d3.layout.force() .charge(-70) .gravity(0.05) .linkDistance(LINK_DISTANCE) .linkStrength(function (d) { return 1 / d.tq }) .on("tick", tickEvent) .on("end", savePositions) panzoom() var draggableNode = d3.behavior.drag() .on("dragstart", dragstart) .on("drag", dragmove) .on("dragend", dragend) self.setData = function (data) { var nodePositions = {} if (localStorageTest()) { var save = JSON.parse(localStorage.getItem("graph/nodeposition")) if (save) save.forEach( function (d) { nodePositions[d.id] = d }) } links = data.graph.links.filter( function (d) { return !d.vpn }) link = vis.select("g.links") .selectAll("g.link") .data(links, linkId) var linkEnter = link.enter().append("g") .attr("class", "link") .on("click", function (d) { if (!d3.event.defaultPrevented) router.link(d)() }) linkEnter.append("line") .append("title") link.selectAll("line") .style("stroke", function (d) { return linkScale(d.tq) }) link.selectAll("title").text(showTq) linksDict = {} link.each( function (d) { if (d.source.node && d.target.node) linksDict[linkId(d)] = d }) nodes = data.graph.nodes node = vis.select("g.nodes") .selectAll(".node") .data(nodes, function(d) { return d.id } ) var nodeEnter = node.enter().append("circle") .attr("r", 8) .on("click", function (d) { if (!d3.event.defaultPrevented) router.node(d.node)() }) .call(draggableNode) node.attr("class", function (d) { var s = ["node"] if (!d.node) s.push("unknown") return s.join(" ") }) nodesDict = {} node.each( function (d) { if (d.node) nodesDict[d.node.nodeinfo.node_id] = d }) nodeEnter.append("title") nodeEnter.each( function (d) { if (nodePositions[d.id]) { d.x = nodePositions[d.id].x d.y = nodePositions[d.id].y } }) node.selectAll("title").text(nodeName) var diameter = graphDiameter(nodes) force.nodes(nodes) .links(links) .size([diameter, diameter]) .start() } self.resetView = function () { node.classed("highlight", false) link.classed("highlight", false) panzoomTo([0, 0], force.size()) doAnimation = true } self.gotoNode = function (d) { link.classed("highlight", false) node.classed("highlight", function (e) { return e.node === d && d !== undefined }) var n = nodesDict[d.nodeinfo.node_id] if (n) panzoomTo([n.x, n.y], [n.x, n.y]) doAnimation = true } self.gotoLink = function (d) { node.classed("highlight", false) link.classed("highlight", function (e) { return e === d && d !== undefined }) var l = linksDict[linkId(d)] if (l) { var x = d3.extent([l.source, l.target], function (d) { return d.x }) var y = d3.extent([l.source, l.target], function (d) { return d.y }) panzoomTo([x[0], y[0]], [x[1], y[1]]) } doAnimation = true } self.destroy = function () { force.stop() node.remove() link.remove() svg.remove() force = null svg = null vis = null link = null node = null } return self } })