strong-arc
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A visual suite for the StrongLoop API Platform
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JavaScript
/* nvd3 version 1.7.1(https://github.com/novus/nvd3) 2015-02-05 */
(function(){
// set up main nv object on window
var nv = window.nv || {};
window.nv = nv;
// the major global objects under the nv namespace
nv.dev = false; //set false when in production
nv.tooltip = nv.tooltip || {}; // For the tooltip system
nv.utils = nv.utils || {}; // Utility subsystem
nv.models = nv.models || {}; //stores all the possible models/components
nv.charts = {}; //stores all the ready to use charts
nv.graphs = []; //stores all the graphs currently on the page
nv.logs = {}; //stores some statistics and potential error messages
nv.dispatch = d3.dispatch('render_start', 'render_end');
// Function bind polyfill
// Needed ONLY for phantomJS as it's missing until version 2.0 which is unreleased as of this comment
// https://github.com/ariya/phantomjs/issues/10522
// http://kangax.github.io/compat-table/es5/#Function.prototype.bind
// phantomJS is used for running the test suite
if (!Function.prototype.bind) {
Function.prototype.bind = function (oThis) {
if (typeof this !== "function") {
// closest thing possible to the ECMAScript 5 internal IsCallable function
throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable");
}
var aArgs = Array.prototype.slice.call(arguments, 1),
fToBind = this,
fNOP = function () {},
fBound = function () {
return fToBind.apply(this instanceof fNOP && oThis
? this
: oThis,
aArgs.concat(Array.prototype.slice.call(arguments)));
};
fNOP.prototype = this.prototype;
fBound.prototype = new fNOP();
return fBound;
};
}
// Development render timers - disabled if dev = false
if (nv.dev) {
nv.dispatch.on('render_start', function(e) {
nv.logs.startTime = +new Date();
});
nv.dispatch.on('render_end', function(e) {
nv.logs.endTime = +new Date();
nv.logs.totalTime = nv.logs.endTime - nv.logs.startTime;
nv.log('total', nv.logs.totalTime); // used for development, to keep track of graph generation times
});
}
// Logs all arguments, and returns the last so you can test things in place
// Note: in IE8 console.log is an object not a function, and if modernizr is used
// then calling Function.prototype.bind with with anything other than a function
// causes a TypeError to be thrown.
nv.log = function() {
if (nv.dev && window.console && console.log && console.log.apply)
console.log.apply(console, arguments);
else if (nv.dev && window.console && typeof console.log == "function" && Function.prototype.bind) {
var log = Function.prototype.bind.call(console.log, console);
log.apply(console, arguments);
}
return arguments[arguments.length - 1];
};
// print console warning, should be used by deprecated functions
nv.deprecated = function(name) {
if (nv.dev && console && console.warn) {
console.warn('`' + name + '` has been deprecated.');
}
};
// render function is used to queue up chart rendering
// in non-blocking timeout functions
nv.render = function render(step) {
// number of graphs to generate in each timeout loop
step = step || 1;
nv.render.active = true;
nv.dispatch.render_start();
setTimeout(function() {
var chart, graph;
for (var i = 0; i < step && (graph = nv.render.queue[i]); i++) {
chart = graph.generate();
if (typeof graph.callback == typeof(Function)) graph.callback(chart);
nv.graphs.push(chart);
}
nv.render.queue.splice(0, i);
if (nv.render.queue.length) setTimeout(arguments.callee, 0);
else {
nv.dispatch.render_end();
nv.render.active = false;
}
}, 0);
};
nv.render.active = false;
nv.render.queue = [];
// main function to use when adding a new graph, see examples
nv.addGraph = function(obj) {
if (typeof arguments[0] === typeof(Function)) {
obj = {generate: arguments[0], callback: arguments[1]};
}
nv.render.queue.push(obj);
if (!nv.render.active) {
nv.render();
}
};/* Utility class to handle creation of an interactive layer.
This places a rectangle on top of the chart. When you mouse move over it, it sends a dispatch
containing the X-coordinate. It can also render a vertical line where the mouse is located.
dispatch.elementMousemove is the important event to latch onto. It is fired whenever the mouse moves over
the rectangle. The dispatch is given one object which contains the mouseX/Y location.
It also has 'pointXValue', which is the conversion of mouseX to the x-axis scale.
*/
nv.interactiveGuideline = function() {
"use strict";
var tooltip = nv.models.tooltip();
//Public settings
var width = null;
var height = null;
//Please pass in the bounding chart's top and left margins
//This is important for calculating the correct mouseX/Y positions.
var margin = {left: 0, top: 0}
, xScale = d3.scale.linear()
, yScale = d3.scale.linear()
, dispatch = d3.dispatch('elementMousemove', 'elementMouseout', 'elementClick', 'elementDblclick')
, showGuideLine = true;
//Must pass in the bounding chart's <svg> container.
//The mousemove event is attached to this container.
var svgContainer = null;
// check if IE by looking for activeX
var isMSIE = "ActiveXObject" in window;
function layer(selection) {
selection.each(function(data) {
var container = d3.select(this);
var availableWidth = (width || 960), availableHeight = (height || 400);
var wrap = container.selectAll("g.nv-wrap.nv-interactiveLineLayer")
.data([data]);
var wrapEnter = wrap.enter()
.append("g").attr("class", " nv-wrap nv-interactiveLineLayer");
wrapEnter.append("g").attr("class","nv-interactiveGuideLine");
if (!svgContainer) {
return;
}
function mouseHandler() {
var d3mouse = d3.mouse(this);
var mouseX = d3mouse[0];
var mouseY = d3mouse[1];
var subtractMargin = true;
var mouseOutAnyReason = false;
if (isMSIE) {
/*
D3.js (or maybe SVG.getScreenCTM) has a nasty bug in Internet Explorer 10.
d3.mouse() returns incorrect X,Y mouse coordinates when mouse moving
over a rect in IE 10.
However, d3.event.offsetX/Y also returns the mouse coordinates
relative to the triggering <rect>. So we use offsetX/Y on IE.
*/
mouseX = d3.event.offsetX;
mouseY = d3.event.offsetY;
/*
On IE, if you attach a mouse event listener to the <svg> container,
it will actually trigger it for all the child elements (like <path>, <circle>, etc).
When this happens on IE, the offsetX/Y is set to where ever the child element
is located.
As a result, we do NOT need to subtract margins to figure out the mouse X/Y
position under this scenario. Removing the line below *will* cause
the interactive layer to not work right on IE.
*/
if(d3.event.target.tagName !== "svg") {
subtractMargin = false;
}
if (d3.event.target.className.baseVal.match("nv-legend")) {
mouseOutAnyReason = true;
}
}
if(subtractMargin) {
mouseX -= margin.left;
mouseY -= margin.top;
}
/* If mouseX/Y is outside of the chart's bounds,
trigger a mouseOut event.
*/
if (mouseX < 0 || mouseY < 0
|| mouseX > availableWidth || mouseY > availableHeight
|| (d3.event.relatedTarget && d3.event.relatedTarget.ownerSVGElement === undefined)
|| mouseOutAnyReason
) {
if (isMSIE) {
if (d3.event.relatedTarget
&& d3.event.relatedTarget.ownerSVGElement === undefined
&& d3.event.relatedTarget.className.match(tooltip.nvPointerEventsClass)) {
return;
}
}
dispatch.elementMouseout({
mouseX: mouseX,
mouseY: mouseY
});
layer.renderGuideLine(null); //hide the guideline
return;
}
var pointXValue = xScale.invert(mouseX);
dispatch.elementMousemove({
mouseX: mouseX,
mouseY: mouseY,
pointXValue: pointXValue
});
//If user double clicks the layer, fire a elementDblclick
if (d3.event.type === "dblclick") {
dispatch.elementDblclick({
mouseX: mouseX,
mouseY: mouseY,
pointXValue: pointXValue
});
}
// if user single clicks the layer, fire elementClick
if (d3.event.type === 'click') {
dispatch.elementClick({
mouseX: mouseX,
mouseY: mouseY,
pointXValue: pointXValue
});
}
}
svgContainer
.on("mousemove",mouseHandler, true)
.on("mouseout" ,mouseHandler,true)
.on("dblclick" ,mouseHandler)
.on("click", mouseHandler)
;
//Draws a vertical guideline at the given X postion.
layer.renderGuideLine = function(x) {
if (!showGuideLine) return;
var line = wrap.select(".nv-interactiveGuideLine")
.selectAll("line")
.data((x != null) ? [nv.utils.NaNtoZero(x)] : [], String);
line.enter()
.append("line")
.attr("class", "nv-guideline")
.attr("x1", function(d) { return d;})
.attr("x2", function(d) { return d;})
.attr("y1", availableHeight)
.attr("y2",0)
;
line.exit().remove();
}
});
}
layer.dispatch = dispatch;
layer.tooltip = tooltip;
layer.margin = function(_) {
if (!arguments.length) return margin;
margin.top = typeof _.top != 'undefined' ? _.top : margin.top;
margin.left = typeof _.left != 'undefined' ? _.left : margin.left;
return layer;
};
layer.width = function(_) {
if (!arguments.length) return width;
width = _;
return layer;
};
layer.height = function(_) {
if (!arguments.length) return height;
height = _;
return layer;
};
layer.xScale = function(_) {
if (!arguments.length) return xScale;
xScale = _;
return layer;
};
layer.showGuideLine = function(_) {
if (!arguments.length) return showGuideLine;
showGuideLine = _;
return layer;
};
layer.svgContainer = function(_) {
if (!arguments.length) return svgContainer;
svgContainer = _;
return layer;
};
return layer;
};
/* Utility class that uses d3.bisect to find the index in a given array, where a search value can be inserted.
This is different from normal bisectLeft; this function finds the nearest index to insert the search value.
For instance, lets say your array is [1,2,3,5,10,30], and you search for 28.
Normal d3.bisectLeft will return 4, because 28 is inserted after the number 10. But interactiveBisect will return 5
because 28 is closer to 30 than 10.
Unit tests can be found in: interactiveBisectTest.html
Has the following known issues:
* Will not work if the data points move backwards (ie, 10,9,8,7, etc) or if the data points are in random order.
* Won't work if there are duplicate x coordinate values.
*/
nv.interactiveBisect = function (values, searchVal, xAccessor) {
"use strict";
if (! (values instanceof Array)) {
return null;
}
if (typeof xAccessor !== 'function') {
xAccessor = function(d,i) {
return d.x;
}
}
var bisect = d3.bisector(xAccessor).left;
var index = d3.max([0, bisect(values,searchVal) - 1]);
var currentValue = xAccessor(values[index], index);
if (typeof currentValue === 'undefined') {
currentValue = index;
}
if (currentValue === searchVal) {
return index; //found exact match
}
var nextIndex = d3.min([index+1, values.length - 1]);
var nextValue = xAccessor(values[nextIndex], nextIndex);
if (typeof nextValue === 'undefined') {
nextValue = nextIndex;
}
if (Math.abs(nextValue - searchVal) >= Math.abs(currentValue - searchVal)) {
return index;
} else {
return nextIndex
}
};
/*
Returns the index in the array "values" that is closest to searchVal.
Only returns an index if searchVal is within some "threshold".
Otherwise, returns null.
*/
nv.nearestValueIndex = function (values, searchVal, threshold) {
"use strict";
var yDistMax = Infinity, indexToHighlight = null;
values.forEach(function(d,i) {
var delta = Math.abs(searchVal - d);
if ( delta <= yDistMax && delta < threshold) {
yDistMax = delta;
indexToHighlight = i;
}
});
return indexToHighlight;
};
/* Tooltip rendering model for nvd3 charts.
window.nv.models.tooltip is the updated,new way to render tooltips.
window.nv.tooltip.show is the old tooltip code.
window.nv.tooltip.* also has various helper methods.
*/
(function() {
"use strict";
window.nv.tooltip = {};
/* Model which can be instantiated to handle tooltip rendering.
Example usage:
var tip = nv.models.tooltip().gravity('w').distance(23)
.data(myDataObject);
tip(); //just invoke the returned function to render tooltip.
*/
window.nv.models.tooltip = function() {
//HTML contents of the tooltip. If null, the content is generated via the data variable.
var content = null;
/*
Tooltip data. If data is given in the proper format, a consistent tooltip is generated.
Example Format of data:
{
key: "Date",
value: "August 2009",
series: [
{key: "Series 1", value: "Value 1", color: "#000"},
{key: "Series 2", value: "Value 2", color: "#00f"}
]
}
*/
var data = null;
var gravity = 'w' //Can be 'n','s','e','w'. Determines how tooltip is positioned.
,distance = 50 //Distance to offset tooltip from the mouse location.
,snapDistance = 25 //Tolerance allowed before tooltip is moved from its current position (creates 'snapping' effect)
, fixedTop = null //If not null, this fixes the top position of the tooltip.
, classes = null //Attaches additional CSS classes to the tooltip DIV that is created.
, chartContainer = null //Parent DIV, of the SVG Container that holds the chart.
, tooltipElem = null //actual DOM element representing the tooltip.
, position = {left: null, top: null} //Relative position of the tooltip inside chartContainer.
, enabled = true; //True -> tooltips are rendered. False -> don't render tooltips.
//Generates a unique id when you create a new tooltip() object
var id = "nvtooltip-" + Math.floor(Math.random() * 100000);
//CSS class to specify whether element should not have mouse events.
var nvPointerEventsClass = "nv-pointer-events-none";
//Format function for the tooltip values column
var valueFormatter = function(d,i) {
return d;
};
//Format function for the tooltip header value.
var headerFormatter = function(d) {
return d;
};
//By default, the tooltip model renders a beautiful table inside a DIV.
//You can override this function if a custom tooltip is desired.
var contentGenerator = function(d) {
if (content != null) {
return content;
}
if (d == null) {
return '';
}
var table = d3.select(document.createElement("table"));
var theadEnter = table.selectAll("thead")
.data([d])
.enter().append("thead");
theadEnter.append("tr")
.append("td")
.attr("colspan",3)
.append("strong")
.classed("x-value",true)
.html(headerFormatter(d.value));
var tbodyEnter = table.selectAll("tbody")
.data([d])
.enter().append("tbody");
var trowEnter = tbodyEnter.selectAll("tr")
.data(function(p) { return p.series})
.enter()
.append("tr")
.classed("highlight", function(p) { return p.highlight});
trowEnter.append("td")
.classed("legend-color-guide",true)
.append("div")
.style("background-color", function(p) { return p.color});
trowEnter.append("td")
.classed("key",true)
.html(function(p) {return p.key});
trowEnter.append("td")
.classed("value",true)
.html(function(p,i) { return valueFormatter(p.value,i) });
trowEnter.selectAll("td").each(function(p) {
if (p.highlight) {
var opacityScale = d3.scale.linear().domain([0,1]).range(["#fff",p.color]);
var opacity = 0.6;
d3.select(this)
.style("border-bottom-color", opacityScale(opacity))
.style("border-top-color", opacityScale(opacity))
;
}
});
var html = table.node().outerHTML;
if (d.footer !== undefined)
html += "<div class='footer'>" + d.footer + "</div>";
return html;
};
var dataSeriesExists = function(d) {
if (d && d.series && d.series.length > 0) {
return true;
}
return false;
};
//In situations where the chart is in a 'viewBox', re-position the tooltip based on how far chart is zoomed.
function convertViewBoxRatio() {
if (chartContainer) {
var svg = d3.select(chartContainer);
if (svg.node().tagName !== "svg") {
svg = svg.select("svg");
}
var viewBox = (svg.node()) ? svg.attr('viewBox') : null;
if (viewBox) {
viewBox = viewBox.split(' ');
var ratio = parseInt(svg.style('width')) / viewBox[2];
position.left = position.left * ratio;
position.top = position.top * ratio;
}
}
}
//Creates new tooltip container, or uses existing one on DOM.
function getTooltipContainer(newContent) {
var body;
if (chartContainer) {
body = d3.select(chartContainer);
} else {
body = d3.select("body");
}
var container = body.select(".nvtooltip");
if (container.node() === null) {
//Create new tooltip div if it doesn't exist on DOM.
container = body.append("div")
.attr("class", "nvtooltip " + (classes? classes: "xy-tooltip"))
.attr("id",id)
;
}
container.node().innerHTML = newContent;
container.style("top",0).style("left",0).style("opacity",0);
container.selectAll("div, table, td, tr").classed(nvPointerEventsClass,true)
container.classed(nvPointerEventsClass,true);
return container.node();
}
//Draw the tooltip onto the DOM.
function nvtooltip() {
if (!enabled) return;
if (!dataSeriesExists(data)) return;
convertViewBoxRatio();
var left = position.left;
var top = (fixedTop != null) ? fixedTop : position.top;
var container = getTooltipContainer(contentGenerator(data));
tooltipElem = container;
if (chartContainer) {
var svgComp = chartContainer.getElementsByTagName("svg")[0];
var boundRect = (svgComp) ? svgComp.getBoundingClientRect() : chartContainer.getBoundingClientRect();
var svgOffset = {left:0,top:0};
if (svgComp) {
var svgBound = svgComp.getBoundingClientRect();
var chartBound = chartContainer.getBoundingClientRect();
var svgBoundTop = svgBound.top;
//Defensive code. Sometimes, svgBoundTop can be a really negative
// number, like -134254. That's a bug.
// If such a number is found, use zero instead. FireFox bug only
if (svgBoundTop < 0) {
var containerBound = chartContainer.getBoundingClientRect();
svgBoundTop = (Math.abs(svgBoundTop) > containerBound.height) ? 0 : svgBoundTop;
}
svgOffset.top = Math.abs(svgBoundTop - chartBound.top);
svgOffset.left = Math.abs(svgBound.left - chartBound.left);
}
//If the parent container is an overflow <div> with scrollbars, subtract the scroll offsets.
//You need to also add any offset between the <svg> element and its containing <div>
//Finally, add any offset of the containing <div> on the whole page.
left += chartContainer.offsetLeft + svgOffset.left - 2*chartContainer.scrollLeft;
top += chartContainer.offsetTop + svgOffset.top - 2*chartContainer.scrollTop;
}
if (snapDistance && snapDistance > 0) {
top = Math.floor(top/snapDistance) * snapDistance;
}
nv.tooltip.calcTooltipPosition([left,top], gravity, distance, container);
return nvtooltip;
}
nvtooltip.nvPointerEventsClass = nvPointerEventsClass;
nvtooltip.content = function(_) {
if (!arguments.length) return content;
content = _;
return nvtooltip;
};
//Returns tooltipElem...not able to set it.
nvtooltip.tooltipElem = function() {
return tooltipElem;
};
nvtooltip.contentGenerator = function(_) {
if (!arguments.length) return contentGenerator;
if (typeof _ === 'function') {
contentGenerator = _;
}
return nvtooltip;
};
nvtooltip.data = function(_) {
if (!arguments.length) return data;
data = _;
return nvtooltip;
};
nvtooltip.gravity = function(_) {
if (!arguments.length) return gravity;
gravity = _;
return nvtooltip;
};
nvtooltip.distance = function(_) {
if (!arguments.length) return distance;
distance = _;
return nvtooltip;
};
nvtooltip.snapDistance = function(_) {
if (!arguments.length) return snapDistance;
snapDistance = _;
return nvtooltip;
};
nvtooltip.classes = function(_) {
if (!arguments.length) return classes;
classes = _;
return nvtooltip;
};
nvtooltip.chartContainer = function(_) {
if (!arguments.length) return chartContainer;
chartContainer = _;
return nvtooltip;
};
nvtooltip.position = function(_) {
if (!arguments.length) return position;
position.left = (typeof _.left !== 'undefined') ? _.left : position.left;
position.top = (typeof _.top !== 'undefined') ? _.top : position.top;
return nvtooltip;
};
nvtooltip.fixedTop = function(_) {
if (!arguments.length) return fixedTop;
fixedTop = _;
return nvtooltip;
};
nvtooltip.enabled = function(_) {
if (!arguments.length) return enabled;
enabled = _;
return nvtooltip;
};
nvtooltip.valueFormatter = function(_) {
if (!arguments.length) return valueFormatter;
if (typeof _ === 'function') {
valueFormatter = _;
}
return nvtooltip;
};
nvtooltip.headerFormatter = function(_) {
if (!arguments.length) return headerFormatter;
if (typeof _ === 'function') {
headerFormatter = _;
}
return nvtooltip;
};
//id() is a read-only function. You can't use it to set the id.
nvtooltip.id = function() {
return id;
};
return nvtooltip;
};
//Original tooltip.show function. Kept for backward compatibility.
// pos = [left,top]
nv.tooltip.show = function(pos, content, gravity, dist, parentContainer, classes) {
//Create new tooltip div if it doesn't exist on DOM.
var container = document.createElement('div');
container.className = 'nvtooltip ' + (classes ? classes : 'xy-tooltip');
var body = parentContainer;
if ( !parentContainer || parentContainer.tagName.match(/g|svg/i)) {
//If the parent element is an SVG element, place tooltip in the <body> element.
body = document.getElementsByTagName('body')[0];
}
container.style.left = 0;
container.style.top = 0;
container.style.opacity = 0;
// Content can also be dom element
if (typeof content !== 'string')
container.appendChild(content);
else
container.innerHTML = content;
body.appendChild(container);
//If the parent container is an overflow <div> with scrollbars, subtract the scroll offsets.
if (parentContainer) {
pos[0] = pos[0] - parentContainer.scrollLeft;
pos[1] = pos[1] - parentContainer.scrollTop;
}
nv.tooltip.calcTooltipPosition(pos, gravity, dist, container);
};
//Looks up the ancestry of a DOM element, and returns the first NON-svg node.
nv.tooltip.findFirstNonSVGParent = function(Elem) {
while(Elem.tagName.match(/^g|svg$/i) !== null) {
Elem = Elem.parentNode;
}
return Elem;
};
//Finds the total offsetTop of a given DOM element.
//Looks up the entire ancestry of an element, up to the first relatively positioned element.
nv.tooltip.findTotalOffsetTop = function ( Elem, initialTop ) {
var offsetTop = initialTop;
do {
if( !isNaN( Elem.offsetTop ) ) {
offsetTop += (Elem.offsetTop);
}
} while( Elem = Elem.offsetParent );
return offsetTop;
};
//Finds the total offsetLeft of a given DOM element.
//Looks up the entire ancestry of an element, up to the first relatively positioned element.
nv.tooltip.findTotalOffsetLeft = function ( Elem, initialLeft) {
var offsetLeft = initialLeft;
do {
if( !isNaN( Elem.offsetLeft ) ) {
offsetLeft += (Elem.offsetLeft);
}
} while( Elem = Elem.offsetParent );
return offsetLeft;
};
//Global utility function to render a tooltip on the DOM.
//pos = [left,top] coordinates of where to place the tooltip, relative to the SVG chart container.
//gravity = how to orient the tooltip
//dist = how far away from the mouse to place tooltip
//container = tooltip DIV
nv.tooltip.calcTooltipPosition = function(pos, gravity, dist, container) {
var height = parseInt(container.offsetHeight),
width = parseInt(container.offsetWidth),
windowWidth = nv.utils.windowSize().width,
windowHeight = nv.utils.windowSize().height,
scrollTop = window.pageYOffset,
scrollLeft = window.pageXOffset,
left, top;
windowHeight = window.innerWidth >= document.body.scrollWidth ? windowHeight : windowHeight - 16;
windowWidth = window.innerHeight >= document.body.scrollHeight ? windowWidth : windowWidth - 16;
gravity = gravity || 's';
dist = dist || 20;
var tooltipTop = function ( Elem ) {
return nv.tooltip.findTotalOffsetTop(Elem, top);
};
var tooltipLeft = function ( Elem ) {
return nv.tooltip.findTotalOffsetLeft(Elem,left);
};
switch (gravity) {
case 'e':
left = pos[0] - width - dist;
top = pos[1] - (height / 2);
var tLeft = tooltipLeft(container);
var tTop = tooltipTop(container);
if (tLeft < scrollLeft) left = pos[0] + dist > scrollLeft ? pos[0] + dist : scrollLeft - tLeft + left;
if (tTop < scrollTop) top = scrollTop - tTop + top;
if (tTop + height > scrollTop + windowHeight) top = scrollTop + windowHeight - tTop + top - height;
break;
case 'w':
left = pos[0] + dist;
top = pos[1] - (height / 2);
var tLeft = tooltipLeft(container);
var tTop = tooltipTop(container);
if (tLeft + width > windowWidth) left = pos[0] - width - dist;
if (tTop < scrollTop) top = scrollTop + 5;
if (tTop + height > scrollTop + windowHeight) top = scrollTop + windowHeight - tTop + top - height;
break;
case 'n':
left = pos[0] - (width / 2) - 5;
top = pos[1] + dist;
var tLeft = tooltipLeft(container);
var tTop = tooltipTop(container);
if (tLeft < scrollLeft) left = scrollLeft + 5;
if (tLeft + width > windowWidth) left = left - width/2 + 5;
if (tTop + height > scrollTop + windowHeight) top = scrollTop + windowHeight - tTop + top - height;
break;
case 's':
left = pos[0] - (width / 2);
top = pos[1] - height - dist;
var tLeft = tooltipLeft(container);
var tTop = tooltipTop(container);
if (tLeft < scrollLeft) left = scrollLeft + 5;
if (tLeft + width > windowWidth) left = left - width/2 + 5;
if (scrollTop > tTop) top = scrollTop;
break;
case 'none':
left = pos[0];
top = pos[1] - dist;
var tLeft = tooltipLeft(container);
var tTop = tooltipTop(container);
break;
}
container.style.left = left+'px';
container.style.top = top+'px';
container.style.opacity = 1;
container.style.position = 'absolute';
return container;
};
//Global utility function to remove tooltips from the DOM.
nv.tooltip.cleanup = function() {
// Find the tooltips, mark them for removal by this class (so others cleanups won't find it)
var tooltips = document.getElementsByClassName('nvtooltip');
var purging = [];
while(tooltips.length) {
purging.push(tooltips[0]);
tooltips[0].style.transitionDelay = '0 !important';
tooltips[0].style.opacity = 0;
tooltips[0].className = 'nvtooltip-pending-removal';
}
setTimeout(function() {
while (purging.length) {
var removeMe = purging.pop();
removeMe.parentNode.removeChild(removeMe);
}
}, 500);
};
})();
/*
Gets the browser window size
Returns object with height and width properties
*/
nv.utils.windowSize = function() {
// Sane defaults
var size = {width: 640, height: 480};
// Earlier IE uses Doc.body
if (document.body && document.body.offsetWidth) {
size.width = document.body.offsetWidth;
size.height = document.body.offsetHeight;
}
// IE can use depending on mode it is in
if (document.compatMode=='CSS1Compat' &&
document.documentElement &&
document.documentElement.offsetWidth ) {
size.width = document.documentElement.offsetWidth;
size.height = document.documentElement.offsetHeight;
}
// Most recent browsers use
if (window.innerWidth && window.innerHeight) {
size.width = window.innerWidth;
size.height = window.innerHeight;
}
return (size);
};
/*
Binds callback function to run when window is resized
*/
nv.utils.windowResize = function(handler) {
if (window.addEventListener) {
window.addEventListener('resize', handler);
} else {
nv.log("ERROR: Failed to bind to window.resize with: ", handler);
}
// return object with clear function to remove the single added callback.
return {
callback: handler,
clear: function() {
window.removeEventListener('resize', handler);
}
}
};
/*
Backwards compatible way to implement more d3-like coloring of graphs.
If passed an array, wrap it in a function which implements the old behavior
Else return what was passed in
*/
nv.utils.getColor = function(color) {
//if you pass in nothing, get default colors back
if (!arguments.length) {
return nv.utils.defaultColor();
//if passed an array, wrap it in a function
} else if(color instanceof Array) {
return function(d, i) { return d.color || color[i % color.length]; };
//if passed a function, return the function, or whatever it may be
//external libs, such as angularjs-nvd3-directives use this
} else {
//can't really help it if someone passes rubbish as color
return color;
}
};
/*
Default color chooser uses the index of an object as before.
*/
nv.utils.defaultColor = function() {
var colors = d3.scale.category20().range();
return function(d, i) {
return d.color || colors[i % colors.length]
};
};
/*
Returns a color function that takes the result of 'getKey' for each series and
looks for a corresponding color from the dictionary
*/
nv.utils.customTheme = function(dictionary, getKey, defaultColors) {
// use default series.key if getKey is undefined
getKey = getKey || function(series) { return series.key };
defaultColors = defaultColors || d3.scale.category20().range();
// start at end of default color list and walk back to index 0
var defIndex = defaultColors.length;
return function(series, index) {
var key = getKey(series);
if (typeof dictionary[key] === 'function') {
return dictionary[key]();
} else if (dictionary[key] !== undefined) {
return dictionary[key];
} else {
// no match in dictionary, use a default color
if (!defIndex) {
// used all the default colors, start over
defIndex = defaultColors.length;
}
defIndex = defIndex - 1;
return defaultColors[defIndex];
}
};
};
/*
From the PJAX example on d3js.org, while this is not really directly needed
it's a very cool method for doing pjax, I may expand upon it a little bit,
open to suggestions on anything that may be useful
*/
nv.utils.pjax = function(links, content) {
var load = function(href) {
d3.html(href, function(fragment) {
var target = d3.select(content).node();
target.parentNode.replaceChild(
d3.select(fragment).select(content).node(),
target);
nv.utils.pjax(links, content);
});
};
d3.selectAll(links).on("click", function() {
history.pushState(this.href, this.textContent, this.href);
load(this.href);
d3.event.preventDefault();
});
d3.select(window).on("popstate", function() {
if (d3.event.state) {
load(d3.event.state);
}
});
};
/*
For when we want to approximate the width in pixels for an SVG:text element.
Most common instance is when the element is in a display:none; container.
Forumla is : text.length * font-size * constant_factor
*/
nv.utils.calcApproxTextWidth = function (svgTextElem) {
if (typeof svgTextElem.style === 'function'
&& typeof svgTextElem.text === 'function') {
var fontSize = parseInt(svgTextElem.style("font-size").replace("px",""));
var textLength = svgTextElem.text().length;
return textLength * fontSize * 0.5;
}
return 0;
};
/*
Numbers that are undefined, null or NaN, convert them to zeros.
*/
nv.utils.NaNtoZero = function(n) {
if (typeof n !== 'number'
|| isNaN(n)
|| n === null
|| n === Infinity
|| n === -Infinity) {
return 0;
}
return n;
};
/*
Add a way to watch for d3 transition ends to d3
*/
d3.selection.prototype.watchTransition = function(renderWatch){
var args = [this].concat([].slice.call(arguments, 1));
return renderWatch.transition.apply(renderWatch, args);
};
/*
Helper object to watch when d3 has rendered something
*/
nv.utils.renderWatch = function(dispatch, duration) {
if (!(this instanceof nv.utils.renderWatch)) {
return new nv.utils.renderWatch(dispatch, duration);
}
var _duration = duration !== undefined ? duration : 250;
var renderStack = [];
var self = this;
this.models = function(models) {
models = [].slice.call(arguments, 0);
models.forEach(function(model){
model.__rendered = false;
(function(m){
m.dispatch.on('renderEnd', function(arg){
m.__rendered = true;
self.renderEnd('model');
});
})(model);
if (renderStack.indexOf(model) < 0) {
renderStack.push(model);
}
});
return this;
};
this.reset = function(duration) {
if (duration !== undefined) {
_duration = duration;
}
renderStack = [];
};
this.transition = function(selection, args, duration) {
args = arguments.length > 1 ? [].slice.call(arguments, 1) : [];
if (args.length > 1) {
duration = args.pop();
} else {
duration = _duration !== undefined ? _duration : 250;
}
selection.__rendered = false;
if (renderStack.indexOf(selection) < 0) {
renderStack.push(selection);
}
if (duration === 0) {
selection.__rendered = true;
selection.delay = function() { return this; };
selection.duration = function() { return this; };
return selection;
} else {
if (selection.length === 0) {
selection.__rendered = true;
} else if (selection.every( function(d){ return !d.length; } )) {
selection.__rendered = true;
} else {
selection.__rendered = false;
}
var n = 0;
return selection
.transition()
.duration(duration)
.each(function(){ ++n; })
.each('end', function(d, i) {
if (--n === 0) {
selection.__rendered = true;
self.renderEnd.apply(this, args);
}
});
}
};
this.renderEnd = function() {
if (renderStack.every( function(d){ return d.__rendered; } )) {
renderStack.forEach( function(d){ d.__rendered = false; });
dispatch.renderEnd.apply(this, arguments);
}
}
};
/*
Takes multiple objects and combines them into the first one (dst)
example: nv.utils.deepExtend({a: 1}, {a: 2, b: 3}, {c: 4});
gives: {a: 2, b: 3, c: 4}
*/
nv.utils.deepExtend = function(dst){
var sources = arguments.length > 1 ? [].slice.call(arguments, 1) : [];
sources.forEach(function(source) {
for (key in source) {
var isArray = dst[key] instanceof Array;
var isObject = typeof dst[key] === 'object';
var srcObj = typeof source[key] === 'object';
if (isObject && !isArray && srcObj) {
nv.utils.deepExtend(dst[key], source[key]);
} else {
dst[key] = source[key];
}
}
});
};
/*
state utility object, used to track d3 states in the models
*/
nv.utils.state = function(){
if (!(this instanceof nv.utils.state)) {
return new nv.utils.state();
}
var state = {};
var _self = this;
var _setState = function(){};
var _getState = function(){ return {}; };
var init = null;
var changed = null;
this.dispatch = d3.dispatch('change', 'set');
this.dispatch.on('set', function(state){
_setState(state, true);
});
this.getter = function(fn){
_getState = fn;
return this;
};
this.setter = function(fn, callback) {
if (!callback) {
callback = function(){};
}
_setState = function(state, update){
fn(state);
if (update) {
callback();
}
};
return this;
};
this.init = function(state){
init = init || {};
nv.utils.deepExtend(init, state);
};
var _set = function(){
var settings = _getState();
if (JSON.stringify(settings) === JSON.stringify(state)) {
return false;
}
for (var key in settings) {
if (state[key] === undefined) {
state[key] = {};
}
state[key] = settings[key];
changed = true;
}
return true;
};
this.update = function(){
if (init) {
_setState(init, false);
init = null;
}
if (_set.call(this)) {
this.dispatch.change(state);
}
};
};
/*
Snippet of code you can insert into each nv.models.* to give you the ability to
do things like:
chart.options({
showXAxis: true,
tooltips: true
});
To enable in the chart:
chart.options = nv.utils.optionsFunc.bind(chart);
*/
nv.utils.optionsFunc = function(args) {
nv.deprecated('nv.utils.optionsFunc');
if (args) {
d3.map(args).forEach((function(key,value) {
if (typeof this[key] === "function") {
this[key](value);
}
}).bind(this));
}
return this;
};
/*
numTicks: requested number of ticks
data: the chart data
returns the number of ticks to actually use on X axis, based on chart data
to avoid duplicate ticks with the same value
*/
nv.utils.calcTicksX = function(numTicks, data) {
// find max number of values from all data streams
var numValues = 1;
var i = 0;
for (i; i < data.length; i += 1) {
var stream_len = data[i] && data[i].values ? data[i].values.length : 0;
numValues = stream_len > numValues ? stream_len : numValues;
}
nv.log("Requested number of ticks: ", numTicks);
nv.log("Calculated max values to be: ", numValues);
// make sure we don't have more ticks than values to avoid duplicates
numTicks = numTicks > numValues ? numTicks = numValues - 1 : numTicks;
// make sure we have at least one tick
numTicks = numTicks < 1 ? 1 : numTicks;
// make sure it's an integer
numTicks = Math.floor(numTicks);
nv.log("Calculating tick count as: ", numTicks);
return numTicks;
};
/*
returns number of ticks to actually use on Y axis, based on chart data
*/
nv.utils.calcTicksY = function(numTicks, data) {
// currently uses the same logic but we can adjust here if needed later
return nv.utils.calcTicksX(numTicks, data);
};
/*
Add a particular option from an options object onto chart
Options exposed on a chart are a getter/setter function that returns chart
on set to mimic typical d3 option chaining, e.g. svg.option1('a').option2('b');
option objects should be generated via Object.create() to provide
the option of manipulating data via get/set functions.
*/
nv.utils.initOption = function(chart, name) {
// if it's a call option, just call it directly, otherwise do get/set
if (chart._calls && chart._calls[name]) {
chart[name] = chart._calls[name];
} else {
chart[name] = function (_) {
if (!arguments.length) return chart._options[name];
chart._options[name] = _;
return chart;
};
}
};
/*
Add all options in an options object to the chart
*/
nv.utils.initOptions = function(chart) {
var ops = Object.getOwnPropertyNames(chart._options || {});
var calls = Object.getOwnPropertyNames(chart._calls || {});
ops = ops.concat(calls);
for (var i in ops) {
nv.utils.initOption(chart, ops[i]);
}
};
/*
Inherit options from a D3 object
d3.rebind makes calling the function on target actually call it on source
Also use _d3options so we can track what we inherit for documentation and chained inheritance
*/
nv.utils.inheritOptionsD3 = function(target, d3_source, oplist) {
target._d3options = oplist.concat(target._d3options || []);
oplist.unshift(d3_source);
oplist.unshift(target);
d3.rebind.apply(this, oplist);
};
/*
Remove duplicates from an array
*/
nv.utils.arrayUnique = function(a) {
return a.sort().filter(function(item, pos) {
return !pos || item != a[pos - 1];
});
};
/*
Keeps a list of custom symbols to draw from in addition to d3.svg.symbol
Necessary since d3 doesn't let you extend its list -_-
Add new symbols by doing nv.utils.symbols.set('name', function(size){...});
*/
nv.utils.symbolMap = d3.map();
/*
Replaces d3.svg.symbol so that we can look both there and our own map
*/
nv.utils.symbol = function() {
var type,
size = 64;
function symbol(d,i) {
var t = type.call(this,d,i);
var s = size.call(this,d,i);
if (d3.svg.symbolTypes.indexOf(t) !== -1) {
return d3.svg.symbol().type(t).size(s)();
} else {
return nv.utils.symbolMap.get(t)(s);
}
}
symbol.type = function(_) {
if (!arguments.length) return type;
type = d3.functor(_);
return symbol;
};
symbol.size = function(_) {
if (!arguments.length) return size;
size = d3.functor(_);
return symbol;
};
return symbol;
};
/*
Inherit option getter/setter functions from source to target
d3.rebind makes calling the function on target actually call it on source
Also track via _inherited and _d3options so we can track what we inherit
for documentation generation purposes and chained inheritance
*/
nv.utils.inheritOptions = function(target, source) {
// inherit all the things
var ops = Object.getOwnPropertyNames(source._options || {});
var calls = Object.getOwnPropertyNames(source._calls || {});
var inherited = source._inherited || [];
var d3ops = source._d3options || [];
var args = ops.concat(calls).concat(inherited).concat(d3ops);
args.unshift(source);
args.unshift(target);
d3.rebind.apply(this, args);
// pass along the lists to keep track of them, don't allow duplicates
target._inherited = nv.utils.arrayUnique(ops.concat(calls).concat(inherited).concat(ops).concat(target._inherited || []));
target._d3options = nv.utils.arrayUnique(d3ops.concat(target._d3options || []));
};
/*
Runs common initialize code on the svg before the chart builds
*/
nv.utils.initSVG = function(svg) {
svg.classed({'nvd3-svg':true});
};nv.models.axis = function() {
"use strict";
//============================================================
// Public Variables with Default Settings
//------------------------------------------------------------
var axis = d3.svg.axis();
var scale = d3.scale.linear();
var margin = {top: 0, right: 0, bottom: 0, left: 0}
, width = 75 //only used for tickLabel currently
, height = 60 //only used for tickLabel currently
, axisLabelText = null
, showMaxMin = true //TODO: showMaxMin should be disabled on all ordinal scaled axes
, highlightZero = true
, rotateLabels = 0
, rotateYLabel = true
, staggerLabels = false
, isOrdinal = false
, ticks