662 lines
17 KiB
JavaScript
662 lines
17 KiB
JavaScript
define(["d3"], function (d3) {
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var margin = 200
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var NODE_RADIUS = 15
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var LINE_RADIUS = 12
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return function (config, linkScale, sidebar, router) {
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var self = this
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var canvas, ctx, screenRect
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var nodesDict, linksDict
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var zoomBehavior
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var force
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var el
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var doAnimation = false
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var intNodes = []
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var intLinks = []
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var highlight
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var highlightedNodes = []
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var highlightedLinks = []
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var nodes = []
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var unknownNodes = []
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var draggedNode
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var LINK_DISTANCE = 70
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function graphDiameter(nodes) {
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return Math.sqrt(nodes.length / Math.PI) * LINK_DISTANCE * 1.41
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}
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function savePositions() {
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if (!localStorageTest())
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return
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var save = intNodes.map( function (d) {
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return { id: d.o.id, x: d.x, y: d.y }
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})
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localStorage.setItem("graph/nodeposition", JSON.stringify(save))
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}
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function nodeName(d) {
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if (d.o.node && d.o.node.nodeinfo)
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return d.o.node.nodeinfo.hostname
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else
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return d.o.id
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}
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function dragstart() {
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var e = translateXY(d3.mouse(el))
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var nodes = intNodes.filter(function (d) {
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return distancePoint(e, d) < NODE_RADIUS
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})
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if (nodes.length === 0)
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return
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draggedNode = nodes[0]
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d3.event.sourceEvent.stopPropagation()
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d3.event.sourceEvent.preventDefault()
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draggedNode.fixed |= 2
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}
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function dragmove() {
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if (draggedNode) {
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var e = translateXY(d3.mouse(el))
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draggedNode.px = e.x
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draggedNode.py = e.y
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force.resume()
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}
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}
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function dragend() {
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if (draggedNode) {
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d3.event.sourceEvent.stopPropagation()
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d3.event.sourceEvent.preventDefault()
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draggedNode.fixed &= 1
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draggedNode = undefined
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}
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}
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var draggableNode = d3.behavior.drag()
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.on("dragstart", dragstart)
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.on("drag", dragmove)
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.on("dragend", dragend)
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function animatePanzoom(translate, scale) {
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var translateP = zoomBehavior.translate()
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var scaleP = zoomBehavior.scale()
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if (!doAnimation) {
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zoomBehavior.translate(translate)
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zoomBehavior.scale(scale)
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panzoom()
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} else {
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var start = {x: translateP[0], y: translateP[1], scale: scaleP}
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var end = {x: translate[0], y: translate[1], scale: scale}
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var interpolate = d3.interpolateObject(start, end)
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var duration = 500
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var ease = d3.ease("cubic-in-out")
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d3.timer(function (t) {
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if (t >= duration)
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return true
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var v = interpolate(ease(t / duration))
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zoomBehavior.translate([v.x, v.y])
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zoomBehavior.scale(v.scale)
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panzoom()
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return false
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})
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}
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}
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var translateP, scaleP
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function panzoom() {
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var translate = zoomBehavior.translate()
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var scale = zoomBehavior.scale()
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panzoomReal(translate, scale)
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}
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function panzoomReal(translate, scale) {
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screenRect = {left: -translate[0] / scale, top: -translate[1] / scale,
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right: (canvas.width - translate[0]) / scale,
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bottom: (canvas.height - translate[1]) / scale}
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requestAnimationFrame(redraw)
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}
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function getSize() {
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var sidebarWidth = sidebar.getWidth()
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var width = el.offsetWidth - sidebarWidth
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var height = el.offsetHeight
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return [width, height]
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}
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function panzoomTo(a, b) {
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var sidebarWidth = sidebar.getWidth()
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var size = getSize()
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var targetWidth = Math.max(1, b[0] - a[0])
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var targetHeight = Math.max(1, b[1] - a[1])
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var scaleX = size[0] / targetWidth
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var scaleY = size[1] / targetHeight
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var scaleMax = zoomBehavior.scaleExtent()[1]
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var scale = 0.5 * Math.min(scaleMax, Math.min(scaleX, scaleY))
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var centroid = [(a[0] + b[0]) / 2, (a[1] + b[1]) / 2]
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var x = -centroid[0] * scale + size[0] / 2
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var y = -centroid[1] * scale + size[1] / 2
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var translate = [x + sidebarWidth, y]
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animatePanzoom(translate, scale)
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}
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function updateHighlight(nopanzoom) {
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highlightedNodes = []
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highlightedLinks = []
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if (highlight !== undefined)
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if (highlight.type === "node") {
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var n = nodesDict[highlight.o.nodeinfo.node_id]
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if (n) {
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highlightedNodes = [n]
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if (!nopanzoom)
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panzoomTo([n.x, n.y], [n.x, n.y])
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}
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return
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} else if (highlight.type === "link") {
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var l = linksDict[highlight.o.id]
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if (l) {
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highlightedLinks = [l]
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highlightedNodes = [l.source, l.target]
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if (!nopanzoom) {
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var x = d3.extent([l.source, l.target], function (d) { return d.x })
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var y = d3.extent([l.source, l.target], function (d) { return d.y })
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panzoomTo([x[0], y[0]], [x[1], y[1]])
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}
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}
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return
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}
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if (!nopanzoom)
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panzoomTo([0, 0], force.size())
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}
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function drawLabel(d) {
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var neighbours = d.neighbours.filter(function (d) {
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return !d.link.o.vpn
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})
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var sum = neighbours.reduce(function (a, b) {
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return [a[0] + b.node.x, a[1] + b.node.y]
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}, [0, 0])
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var sumCos = sum[0] - d.x * neighbours.length
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var sumSin = sum[1] - d.y * neighbours.length
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var angle = Math.PI / 2
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if (neighbours.length > 0)
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angle = Math.PI + Math.atan2(sumSin, sumCos)
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var cos = Math.cos(angle)
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var sin = Math.sin(angle)
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var width = d.labelWidth
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var height = d.labelHeight
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var x = d.x + d.labelA * Math.pow(Math.abs(cos), 2 / 5) * Math.sign(cos) - width / 2
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var y = d.y + d.labelB * Math.pow(Math.abs(sin), 2 / 5) * Math.sign(sin) - height / 2
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ctx.drawImage(d.label, x, y, width, height)
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}
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function visibleLinks(d) {
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return (d.source.x > screenRect.left && d.source.x < screenRect.right &&
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d.source.y > screenRect.top && d.source.y < screenRect.bottom) ||
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(d.target.x > screenRect.left && d.target.x < screenRect.right &&
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d.target.y > screenRect.top && d.target.y < screenRect.bottom)
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}
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function visibleNodes(d) {
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return d.x + margin > screenRect.left && d.x - margin < screenRect.right &&
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d.y + margin > screenRect.top && d.y - margin < screenRect.bottom
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}
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function redraw() {
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var translate = zoomBehavior.translate()
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var scale = zoomBehavior.scale()
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var links = intLinks.filter(visibleLinks)
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var xExtent = d3.extent(intNodes, function (d) { return d.px })
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var yExtent = d3.extent(intNodes, function (d) { return d.py })
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if (translateP) {
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ctx.save()
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ctx.translate(translateP[0], translateP[1])
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ctx.scale(scaleP, scaleP)
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ctx.clearRect(xExtent[0] - margin, yExtent[0] - margin,
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xExtent[1] - xExtent[0] + 2 * margin,
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yExtent[1] - yExtent[0] + 2 * margin)
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ctx.restore()
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}
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ctx.save()
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ctx.translate(translate[0], translate[1])
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ctx.scale(scale, scale)
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if (!translateP)
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ctx.clearRect(xExtent[0] - margin, yExtent[0] - margin,
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xExtent[1] - xExtent[0] + 2 * margin,
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yExtent[1] - yExtent[0] + 2 * margin)
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// Remeber last translate/scale state
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translateP = translate
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scaleP = scale
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ctx.beginPath()
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nodes.filter(visibleNodes).forEach(function (d) {
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var clients = d.o.node.statistics.clients
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if (d.clients === 0)
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return
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var distance = 16
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var radius = 3
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var a = 1.2
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var startAngle = Math.PI
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var angle = startAngle
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for (var i = 0; i < clients; i++) {
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if ((angle - startAngle) > 2 * Math.PI) {
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angle = startAngle
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distance += 2 * radius * a
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}
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var x = d.x + distance * Math.cos(angle)
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var y = d.y + distance * Math.sin(angle)
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ctx.moveTo(x, y)
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ctx.arc(x, y, radius, 0, 2 * Math.PI)
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var n = Math.floor((Math.PI * distance) / (a * radius))
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var angleDelta = 2 * Math.PI / n
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angle += angleDelta
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}
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})
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ctx.fillStyle = "#73A7CC"
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ctx.fill()
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if (highlightedLinks.length) {
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ctx.save()
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ctx.lineWidth = 10
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ctx.strokeStyle = "#FFD486"
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highlightedLinks.forEach(function (d) {
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ctx.beginPath()
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ctx.moveTo(d.source.x, d.source.y)
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ctx.lineTo(d.target.x, d.target.y)
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ctx.stroke()
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})
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ctx.restore()
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}
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ctx.save()
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links.forEach(function (d) {
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ctx.beginPath()
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ctx.moveTo(d.source.x, d.source.y)
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ctx.lineTo(d.target.x, d.target.y)
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ctx.strokeStyle = d.color
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ctx.globalAlpha = d.o.vpn ? 0.1 : 1
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ctx.lineWidth = d.o.vpn ? 1.5 : 2.5
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ctx.stroke()
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})
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ctx.restore()
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if (scale > 0.9)
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intNodes.filter(visibleNodes).forEach(drawLabel, scale)
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ctx.beginPath()
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unknownNodes.filter(visibleNodes).forEach(function (d) {
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ctx.moveTo(d.x + 8, d.y)
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ctx.arc(d.x, d.y, 8, 0, 2 * Math.PI)
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})
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ctx.strokeStyle = "#d00000"
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ctx.fillStyle = "#ffffff"
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ctx.lineWidth = 2.5
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ctx.fill()
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ctx.stroke()
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ctx.beginPath()
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nodes.filter(visibleNodes).forEach(function (d) {
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ctx.moveTo(d.x + 8, d.y)
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ctx.arc(d.x, d.y, 8, 0, 2 * Math.PI)
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})
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ctx.strokeStyle = "#AEC7E8"
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ctx.fillStyle = "#ffffff"
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ctx.fill()
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ctx.stroke()
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if (highlightedNodes.length) {
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ctx.save()
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ctx.strokeStyle = "#FFD486"
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ctx.fillStyle = "orange"
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ctx.lineWidth = 6
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highlightedNodes.forEach(function (d) {
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ctx.beginPath()
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ctx.moveTo(d.x + 8, d.y)
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ctx.arc(d.x, d.y, 8, 0, 2 * Math.PI)
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ctx.fill()
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ctx.stroke()
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})
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ctx.restore()
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}
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ctx.restore()
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}
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function tickEvent() {
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redraw()
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}
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function resizeCanvas() {
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var r = window.devicePixelRatio
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canvas.width = el.offsetWidth * r
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canvas.height = el.offsetHeight * r
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canvas.style.width = el.offsetWidth + "px"
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canvas.style.height = el.offsetHeight + "px"
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ctx.resetTransform()
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ctx.scale(r, r)
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requestAnimationFrame(redraw)
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}
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function distance(a, b) {
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return Math.pow(a.x - b.x, 2) + Math.pow(a.y - b.y, 2)
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}
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function distancePoint(a, b) {
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return Math.sqrt(distance(a, b))
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}
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function distanceLink(p, a, b) {
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/* http://stackoverflow.com/questions/849211 */
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var l2 = distance(a, b)
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if (l2 === 0)
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return distance(p, a)
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var t = ((p.x - a.x) * (b.x - a.x) + (p.y - a.y) * (b.y - a.y)) / l2
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if (t < 0)
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return distance(p, a)
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if (t > 1)
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return distance(p, b)
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return Math.sqrt(distance(p, { x: a.x + t * (b.x - a.x),
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y: a.y + t * (b.y - a.y) }))
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}
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function translateXY(d) {
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var translate = zoomBehavior.translate()
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var scale = zoomBehavior.scale()
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return {x: (d[0] - translate[0]) / scale,
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y: (d[1] - translate[1]) / scale
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}
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}
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function onClick() {
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if (d3.event.defaultPrevented)
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return
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var e = translateXY(d3.mouse(el))
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var nodes = intNodes.filter(function (d) {
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return distancePoint(e, d) < NODE_RADIUS
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})
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if (nodes.length > 0) {
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router.node(nodes[0].o.node)()
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return
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}
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var links = intLinks.filter(function (d) {
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return distanceLink(e, d.source, d.target) < LINE_RADIUS
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})
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if (links.length > 0) {
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router.link(links[0].o)()
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return
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}
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}
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el = document.createElement("div")
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el.classList.add("graph")
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self.div = el
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zoomBehavior = d3.behavior.zoom()
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.scaleExtent([1 / 3, 3])
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.on("zoom", panzoom)
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.translate([sidebar.getWidth(), 0])
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canvas = d3.select(el)
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.call(zoomBehavior)
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.append("canvas")
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.attr("pointer-events", "all")
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.on("click", onClick)
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.call(draggableNode)
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.node()
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ctx = canvas.getContext("2d")
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force = d3.layout.force()
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.charge(-250)
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.gravity(0.1)
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.linkDistance(function (d) {
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if (d.o.vpn)
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return 0
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else
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return LINK_DISTANCE
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})
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.linkStrength(function (d) {
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if (d.o.vpn)
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return 0
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else
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return Math.max(0.5, 1 / d.o.tq)
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})
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.on("tick", tickEvent)
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.on("end", savePositions)
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window.addEventListener("resize", resizeCanvas)
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panzoom()
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self.setData = function (data) {
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var oldNodes = {}
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intNodes.forEach( function (d) {
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oldNodes[d.o.id] = d
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})
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intNodes = data.graph.nodes.map( function (d) {
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var e
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if (d.id in oldNodes)
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e = oldNodes[d.id]
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else
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e = {}
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e.o = d
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return e
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})
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var newNodesDict = {}
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intNodes.forEach( function (d) {
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newNodesDict[d.o.id] = d
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})
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var oldLinks = {}
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intLinks.forEach( function (d) {
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oldLinks[d.o.id] = d
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})
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intLinks = data.graph.links.map( function (d) {
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var e
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if (d.id in oldLinks)
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e = oldLinks[d.id]
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else
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e = {}
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e.o = d
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e.source = newNodesDict[d.source.id]
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e.target = newNodesDict[d.target.id]
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e.color = linkScale(d.tq).hex()
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return e
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})
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linksDict = {}
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nodesDict = {}
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intNodes.forEach(function (d) {
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d.neighbours = {}
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if (d.o.node)
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nodesDict[d.o.node.nodeinfo.node_id] = d
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var name = nodeName(d)
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ctx.font = "11px Roboto"
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var offset = 8
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var lineWidth = 3
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var width = ctx.measureText(name).width
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var buffer = document.createElement("canvas")
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var r = window.devicePixelRatio
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var bctx = buffer.getContext("2d")
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var scale = zoomBehavior.scaleExtent()[1] * r
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buffer.width = (width + 2 * lineWidth) * scale
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buffer.height = (16 + 2 * lineWidth) * scale
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bctx.scale(scale, scale)
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|
bctx.textBaseline = "middle"
|
|
bctx.textAlign = "center"
|
|
bctx.font = ctx.font
|
|
bctx.lineWidth = lineWidth
|
|
bctx.lineCap = "round"
|
|
bctx.strokeStyle = "rgba(255, 255, 255, 0.8)"
|
|
bctx.fillStyle = "rgba(0, 0, 0, 0.6)"
|
|
bctx.strokeText(name, buffer.width / (2 * scale), buffer.height / (2 * scale))
|
|
bctx.fillText(name, buffer.width / (2 * scale), buffer.height / (2 * scale))
|
|
|
|
d.label = buffer
|
|
d.labelWidth = buffer.width / scale
|
|
d.labelHeight = buffer.height / scale
|
|
d.labelA = offset + buffer.width / (2 * scale)
|
|
d.labelB = offset + buffer.height / (2 * scale)
|
|
})
|
|
|
|
intLinks.forEach(function (d) {
|
|
d.source.neighbours[d.target.o.id] = {node: d.target, link: d}
|
|
d.target.neighbours[d.source.o.id] = {node: d.source, link: d}
|
|
|
|
if (d.o.source.node && d.o.target.node)
|
|
linksDict[d.o.id] = d
|
|
})
|
|
|
|
intNodes.forEach(function (d) {
|
|
d.neighbours = Object.keys(d.neighbours).map(function (k) {
|
|
return d.neighbours[k]
|
|
})
|
|
})
|
|
|
|
nodes = intNodes.filter(function (d) { return d.o.node })
|
|
unknownNodes = intNodes.filter(function (d) { return !d.o.node })
|
|
|
|
if (localStorageTest()) {
|
|
var save = JSON.parse(localStorage.getItem("graph/nodeposition"))
|
|
|
|
if (save) {
|
|
var nodePositions = {}
|
|
save.forEach( function (d) {
|
|
nodePositions[d.id] = d
|
|
})
|
|
|
|
intNodes.forEach( function (d) {
|
|
if (nodePositions[d.o.id] && (d.x === undefined || d.y === undefined)) {
|
|
d.x = nodePositions[d.o.id].x
|
|
d.y = nodePositions[d.o.id].y
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
var diameter = graphDiameter(intNodes)
|
|
|
|
force.nodes(intNodes)
|
|
.links(intLinks)
|
|
.size([diameter, diameter])
|
|
|
|
updateHighlight(true)
|
|
|
|
force.start()
|
|
resizeCanvas()
|
|
}
|
|
|
|
self.resetView = function () {
|
|
highlight = undefined
|
|
updateHighlight()
|
|
doAnimation = true
|
|
}
|
|
|
|
self.gotoNode = function (d) {
|
|
highlight = {type: "node", o: d}
|
|
updateHighlight()
|
|
doAnimation = true
|
|
}
|
|
|
|
self.gotoLink = function (d) {
|
|
highlight = {type: "link", o: d}
|
|
updateHighlight()
|
|
doAnimation = true
|
|
}
|
|
|
|
self.destroy = function () {
|
|
force.stop()
|
|
canvas.remove()
|
|
force = null
|
|
}
|
|
|
|
return self
|
|
}
|
|
})
|