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angular-nvd3.js
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angular-nvd3.js
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/**************************************************************************
* AngularJS-nvD3, v1.0.5; MIT License; 03/12/2015 08:27
* http://krispo.github.io/angular-nvd3
**************************************************************************/
(function(){
'use strict';
angular.module('nvd3', [])
.directive('nvd3', ['nvd3Utils', function(nvd3Utils){
return {
restrict: 'AE',
scope: {
data: '=', //chart data, [required]
options: '=', //chart options, according to nvd3 core api, [required]
api: '=?', //directive global api, [optional]
events: '=?', //global events that directive would subscribe to, [optional]
config: '=?', //global directive configuration, [optional]
onReady: '&?' //callback function that is called with internal scope when directive is created [optional]
},
link: function(scope, element, attrs){
var defaultConfig = {
extended: false,
visible: true,
disabled: false,
refreshDataOnly: true,
deepWatchOptions: true,
deepWatchData: true,
deepWatchDataDepth: 2, // 0 - by reference (cheap), 1 - by collection item (the middle), 2 - by value (expensive)
debounce: 10 // default 10ms, time silence to prevent refresh while multiple options changes at a time
};
//flag indicates if directive and chart is ready
scope.isReady = false;
//basic directive configuration
scope._config = angular.extend(defaultConfig, scope.config);
//directive global api
scope.api = {
// Fully refresh directive
refresh: function(){
scope.api.updateWithOptions(scope.options);
scope.isReady = true;
},
// Fully refresh directive with specified timeout
refreshWithTimeout: function(t){
setTimeout(function(){
scope.api.refresh();
}, t);
},
// Update chart layout (for example if container is resized)
update: function() {
if (scope.chart && scope.svg) {
scope.svg.datum(scope.data).call(scope.chart);
// scope.chart.update();
} else {
scope.api.refresh();
}
},
// Update chart layout with specified timeout
updateWithTimeout: function(t){
setTimeout(function(){
scope.api.update();
}, t);
},
// Update chart with new options
updateWithOptions: function(options){
// Clearing
scope.api.clearElement();
// Exit if options are not yet bound
if (angular.isDefined(options) === false) return;
// Exit if chart is hidden
if (!scope._config.visible) return;
// Initialize chart with specific type
scope.chart = nv.models[options.chart.type]();
// Generate random chart ID
scope.chart.id = Math.random().toString(36).substr(2, 15);
angular.forEach(scope.chart, function(value, key){
if (key[0] === '_');
else if ([
'clearHighlights',
'highlightPoint',
'id',
'options',
'resizeHandler',
'state',
'open',
'close',
'tooltipContent'
].indexOf(key) >= 0);
else if (key === 'dispatch') {
if (options.chart[key] === undefined || options.chart[key] === null) {
if (scope._config.extended) options.chart[key] = {};
}
configureEvents(scope.chart[key], options.chart[key]);
}
else if ([
'bars',
'bars1',
'bars2',
'boxplot',
'bullet',
'controls',
'discretebar',
'distX',
'distY',
'interactiveLayer',
'legend',
'lines',
'lines1',
'lines2',
'multibar',
'pie',
'scatter',
'sparkline',
'stack1',
'stack2',
'sunburst',
'tooltip',
'x2Axis',
'xAxis',
'y1Axis',
'y2Axis',
'y3Axis',
'y4Axis',
'yAxis',
'yAxis1',
'yAxis2'
].indexOf(key) >= 0 ||
// stacked is a component for stackedAreaChart, but a boolean for multiBarChart and multiBarHorizontalChart
(key === 'stacked' && options.chart.type === 'stackedAreaChart')) {
if (options.chart[key] === undefined || options.chart[key] === null) {
if (scope._config.extended) options.chart[key] = {};
}
configure(scope.chart[key], options.chart[key], options.chart.type);
}
//TODO: need to fix bug in nvd3
else if ((key === 'xTickFormat' || key === 'yTickFormat') && options.chart.type === 'lineWithFocusChart');
else if ((key === 'tooltips') && options.chart.type === 'boxPlotChart');
else if ((key === 'tooltipXContent' || key === 'tooltipYContent') && options.chart.type === 'scatterChart');
else if (options.chart[key] === undefined || options.chart[key] === null){
if (scope._config.extended) {
if (key==='barColor')
options.chart[key] = value()();
else
options.chart[key] = value();
}
}
else scope.chart[key](options.chart[key]);
});
// Update with data
if (options.chart.type === 'sunburstChart') {
scope.api.updateWithData(angular.copy(scope.data));
} else {
scope.api.updateWithData(scope.data);
}
// Configure wrappers
if (options['title'] || scope._config.extended) configureWrapper('title');
if (options['subtitle'] || scope._config.extended) configureWrapper('subtitle');
if (options['caption'] || scope._config.extended) configureWrapper('caption');
// Configure styles
if (options['styles'] || scope._config.extended) configureStyles();
nv.addGraph(function() {
if (!scope.chart) return;
// Remove resize handler. Due to async execution should be placed here, not in the clearElement
if (scope.chart.resizeHandler) scope.chart.resizeHandler.clear();
// Update the chart when window resizes
scope.chart.resizeHandler = nv.utils.windowResize(function() {
scope.chart && scope.chart.update && scope.chart.update();
});
/// Zoom feature
if (options.chart.zoom !== undefined && [
'scatterChart',
'lineChart',
'candlestickBarChart',
'cumulativeLineChart',
'historicalBarChart',
'ohlcBarChart',
'stackedAreaChart'
].indexOf(options.chart.type) > -1) {
nvd3Utils.zoom(scope, options);
}
return scope.chart;
}, options.chart['callback']);
},
// Update chart with new data
updateWithData: function (data){
if (data) {
// remove whole svg element with old data
d3.select(element[0]).select('svg').remove();
var h, w;
// Select the current element to add <svg> element and to render the chart in
scope.svg = d3.select(element[0]).append('svg');
if (h = scope.options.chart.height) {
if (!isNaN(+h)) h += 'px'; //check if height is number
scope.svg.attr('height', h).style({height: h});
}
if (w = scope.options.chart.width) {
if (!isNaN(+w)) w += 'px'; //check if width is number
scope.svg.attr('width', w).style({width: w});
} else {
scope.svg.attr('width', '100%').style({width: '100%'});
}
scope.svg.datum(data).call(scope.chart);
}
},
// Fully clear directive element
clearElement: function (){
element.find('.title').remove();
element.find('.subtitle').remove();
element.find('.caption').remove();
element.empty();
// remove tooltip if exists
if (scope.chart && scope.chart.tooltip && scope.chart.tooltip.id) {
d3.select('#' + scope.chart.tooltip.id()).remove();
}
// To be compatible with old nvd3 (v1.7.1)
if (nv.graphs && scope.chart) {
for (var i = nv.graphs.length - 1; i >= 0; i--) {
if (nv.graphs[i] && (nv.graphs[i].id === scope.chart.id)) {
nv.graphs.splice(i, 1);
}
}
}
if (nv.tooltip && nv.tooltip.cleanup) {
nv.tooltip.cleanup();
}
if (scope.chart && scope.chart.resizeHandler) scope.chart.resizeHandler.clear();
scope.chart = null;
},
// Get full directive scope
getScope: function(){ return scope; },
// Get directive element
getElement: function(){ return element; }
};
// Configure the chart model with the passed options
function configure(chart, options, chartType){
if (chart && options){
angular.forEach(chart, function(value, key){
if (key[0] === '_');
else if (key === 'dispatch') {
if (options[key] === undefined || options[key] === null) {
if (scope._config.extended) options[key] = {};
}
configureEvents(value, options[key]);
}
else if (key === 'tooltip') {
if (options[key] === undefined || options[key] === null) {
if (scope._config.extended) options[key] = {};
}
configure(chart[key], options[key], chartType);
}
else if (key === 'contentGenerator') {
if (options[key]) chart[key](options[key]);
}
else if ([
'axis',
'clearHighlights',
'defined',
'highlightPoint',
'nvPointerEventsClass',
'options',
'rangeBand',
'rangeBands',
'scatter',
'open',
'close'
].indexOf(key) === -1) {
if (options[key] === undefined || options[key] === null){
if (scope._config.extended) options[key] = value();
}
else chart[key](options[key]);
}
});
}
}
// Subscribe to the chart events (contained in 'dispatch')
// and pass eventHandler functions in the 'options' parameter
function configureEvents(dispatch, options){
if (dispatch && options){
angular.forEach(dispatch, function(value, key){
if (options[key] === undefined || options[key] === null){
if (scope._config.extended) options[key] = value.on;
}
else dispatch.on(key + '._', options[key]);
});
}
}
// Configure 'title', 'subtitle', 'caption'.
// nvd3 has no sufficient models for it yet.
function configureWrapper(name){
var _ = nvd3Utils.deepExtend(defaultWrapper(name), scope.options[name] || {});
if (scope._config.extended) scope.options[name] = _;
var wrapElement = angular.element('<div></div>').html(_['html'] || '')
.addClass(name).addClass(_.className)
.removeAttr('style')
.css(_.css);
if (!_['html']) wrapElement.text(_.text);
if (_.enable) {
if (name === 'title') element.prepend(wrapElement);
else if (name === 'subtitle') angular.element(element[0].querySelector('.title')).after(wrapElement);
else if (name === 'caption') element.append(wrapElement);
}
}
// Add some styles to the whole directive element
function configureStyles(){
var _ = nvd3Utils.deepExtend(defaultStyles(), scope.options['styles'] || {});
if (scope._config.extended) scope.options['styles'] = _;
angular.forEach(_.classes, function(value, key){
value ? element.addClass(key) : element.removeClass(key);
});
element.removeAttr('style').css(_.css);
}
// Default values for 'title', 'subtitle', 'caption'
function defaultWrapper(_){
switch (_){
case 'title': return {
enable: false,
text: 'Write Your Title',
className: 'h4',
css: {
width: scope.options.chart.width + 'px',
textAlign: 'center'
}
};
case 'subtitle': return {
enable: false,
text: 'Write Your Subtitle',
css: {
width: scope.options.chart.width + 'px',
textAlign: 'center'
}
};
case 'caption': return {
enable: false,
text: 'Figure 1. Write Your Caption text.',
css: {
width: scope.options.chart.width + 'px',
textAlign: 'center'
}
};
}
}
// Default values for styles
function defaultStyles(){
return {
classes: {
'with-3d-shadow': true,
'with-transitions': true,
'gallery': false
},
css: {}
};
}
/* Event Handling */
// Watching on options changing
if (scope._config.deepWatchOptions) {
scope.$watch('options', nvd3Utils.debounce(function(newOptions){
if (!scope._config.disabled) scope.api.refresh();
}, scope._config.debounce, true), true);
}
// Watching on data changing
function dataWatchFn(newData, oldData) {
if (newData !== oldData){
if (!scope._config.disabled) {
scope._config.refreshDataOnly ? scope.api.update() : scope.api.refresh(); // if wanted to refresh data only, use update method, otherwise use full refresh.
}
}
}
if (scope._config.deepWatchData) {
if (scope._config.deepWatchDataDepth === 1) {
scope.$watchCollection('data', dataWatchFn);
} else {
scope.$watch('data', dataWatchFn, scope._config.deepWatchDataDepth === 2);
}
}
// Watching on config changing
scope.$watch('config', function(newConfig, oldConfig){
if (newConfig !== oldConfig){
scope._config = angular.extend(defaultConfig, newConfig);
scope.api.refresh();
}
}, true);
// Refresh chart first time if deepWatchOptions and deepWatchData are false
if (!scope._config.deepWatchOptions && !scope._config.deepWatchData) {
scope.api.refresh();
}
//subscribe on global events
angular.forEach(scope.events, function(eventHandler, event){
scope.$on(event, function(e, args){
return eventHandler(e, scope, args);
});
});
// remove completely when directive is destroyed
element.on('$destroy', function () {
scope.api.clearElement();
});
// trigger onReady callback if directive is ready
scope.$watch('isReady', function(isReady){
if (isReady) {
if (scope.onReady && typeof scope.onReady() === 'function') scope.onReady()(scope, element);
}
});
}
};
}])
.factory('nvd3Utils', function(){
return {
debounce: function(func, wait, immediate) {
var timeout;
return function() {
var context = this, args = arguments;
var later = function() {
timeout = null;
if (!immediate) func.apply(context, args);
};
var callNow = immediate && !timeout;
clearTimeout(timeout);
timeout = setTimeout(later, wait);
if (callNow) func.apply(context, args);
};
},
deepExtend: function(dst){
var me = this;
angular.forEach(arguments, function(obj) {
if (obj !== dst) {
angular.forEach(obj, function(value, key) {
if (dst[key] && dst[key].constructor && dst[key].constructor === Object) {
me.deepExtend(dst[key], value);
} else {
dst[key] = value;
}
});
}
});
return dst;
},
zoom: function(scope, options) {
var zoom = options.chart.zoom;
// check if zoom enabled
var enabled = (typeof zoom.enabled === 'undefined' || zoom.enabled === null) ? true : zoom.enabled;
if (!enabled) return;
var xScale = scope.chart.xAxis.scale()
, yScale = scope.chart.yAxis.scale()
, xDomain = scope.chart.xDomain || xScale.domain
, yDomain = scope.chart.yDomain || yScale.domain
, x_boundary = xScale.domain().slice()
, y_boundary = yScale.domain().slice()
// initialize zoom options
, scale = zoom.scale || 1
, translate = zoom.translate || [0, 0]
, scaleExtent = zoom.scaleExtent || [1, 10]
, useFixedDomain = zoom.useFixedDomain || false
, useNiceScale = zoom.useNiceScale || false
, horizontalOff = zoom.horizontalOff || false
, verticalOff = zoom.verticalOff || false
, unzoomEventType = zoom.unzoomEventType || 'dblclick.zoom'
// auxiliary functions
, fixDomain
, d3zoom
, zoomed
, unzoomed
;
// ensure nice axis
if (useNiceScale) {
xScale.nice();
yScale.nice();
}
// fix domain
fixDomain = function (domain, boundary) {
domain[0] = Math.min(Math.max(domain[0], boundary[0]), boundary[1] - boundary[1] / scaleExtent[1]);
domain[1] = Math.max(boundary[0] + boundary[1] / scaleExtent[1], Math.min(domain[1], boundary[1]));
return domain;
};
// zoom event handler
zoomed = function () {
if (zoom.zoomed !== undefined) {
var domains = zoom.zoomed(xScale.domain(), yScale.domain());
if (!horizontalOff) xDomain([domains.x1, domains.x2]);
if (!verticalOff) yDomain([domains.y1, domains.y2]);
} else {
if (!horizontalOff) xDomain(useFixedDomain ? fixDomain(xScale.domain(), x_boundary) : xScale.domain());
if (!verticalOff) yDomain(useFixedDomain ? fixDomain(yScale.domain(), y_boundary) : yScale.domain());
}
scope.chart.update();
};
// unzoomed event handler
unzoomed = function () {
if (zoom.unzoomed !== undefined) {
var domains = zoom.unzoomed(xScale.domain(), yScale.domain());
if (!horizontalOff) xDomain([domains.x1, domains.x2]);
if (!verticalOff) yDomain([domains.y1, domains.y2]);
} else {
if (!horizontalOff) xDomain(x_boundary);
if (!verticalOff) yDomain(y_boundary);
}
d3zoom.scale(scale).translate(translate);
scope.chart.update();
};
// create d3 zoom handler
d3zoom = d3.behavior.zoom()
.x(xScale)
.y(yScale)
.scaleExtent(scaleExtent)
.on('zoom', zoomed);
scope.svg.call(d3zoom);
d3zoom.scale(scale).translate(translate).event(scope.svg);
if (unzoomEventType !== 'none') scope.svg.on(unzoomEventType, unzoomed);
}
};
});
})();