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nbering/app.js

Created August 14, 2014 17:28
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Basic Angular-Google-Chart Example
Raw
app.js
angular.module('myApp', ['googlechart'])
.controller('myController', function($scope) {
var chart1 = {};
chart1.type = "AreaChart";
chart1.displayed = false;
chart1.data = {
"cols": [{
id: "month",
label: "Month",
type: "string"
}, {
id: "laptop-id",
label: "Laptop",
type: "number"
}, {
id: "desktop-id",
label: "Desktop",
type: "number"
}, {
id: "server-id",
label: "Server",
type: "number"
}, {
id: "cost-id",
label: "Shipping",
type: "number"
}],
"rows": [{
c: [{
v: "January"
}, {
v: 19,
f: "42 items"
}, {
v: 12,
f: "Ony 12 items"
}, {
v: 7,
f: "7 servers"
}, {
v: 4
}]
}, {
c: [{
v: "February"
}, {
v: 13
}, {
v: 1,
f: "1 unit (Out of stock this month)"
}, {
v: 12
}, {
v: 2
}]
}, {
c: [{
v: "March"
}, {
v: 24
}, {
v: 5
}, {
v: 11
}, {
v: 6
}
]
}]
};
chart1.options = {
"title": "Sales per month",
"isStacked": "true",
"fill": 20,
"displayExactValues": true,
"vAxis": {
"title": "Sales unit",
"gridlines": {
"count": 10
}
},
"hAxis": {
"title": "Date"
}
};
$scope.myChart = chart1;
});
Raw
index.html
<html ng-app="myApp">
<head>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.0-beta.18/angular.js"></script>
<script type="text/javascript" src="app.js"></script>
<script type="text/javascript" src="ng-google-chart.js"></script>
<title>Angular-Google-Charts Example</title>
</head>
<body>
<div ng-controller="myController">
<div google-chart chart="myChart"></div>
</div>
</body>
</html>
Raw
ng-google-chart.js
/**
* @description Google Chart Api Directive Module for AngularJS
* @version 0.0.10
* @author Nicolas Bouillon <[email protected]>
* @author GitHub contributors
* @license MIT
* @year 2013
*/
(function(document, window, angular) {
'use strict';
angular.module('googlechart', [])
.value('googleChartApiConfig', {
version: '1',
optionalSettings: {
packages: ['corechart']
}
})
.provider('googleJsapiUrl', function() {
var protocol = 'https:';
var url = '//www.google.com/jsapi';
this.setProtocol = function(newProtocol) {
protocol = newProtocol;
};
this.setUrl = function(newUrl) {
url = newUrl;
};
this.$get = function() {
return (protocol ? protocol : '') + url;
};
})
.factory('googleChartApiPromise', ['$rootScope', '$q', 'googleChartApiConfig', 'googleJsapiUrl',
function($rootScope, $q, apiConfig, googleJsapiUrl) {
var apiReady = $q.defer();
var onLoad = function() {
// override callback function
var settings = {
callback: function() {
var oldCb = apiConfig.optionalSettings.callback;
$rootScope.$apply(function() {
apiReady.resolve();
});
if (angular.isFunction(oldCb)) {
oldCb.call(this);
}
}
};
settings = angular.extend({}, apiConfig.optionalSettings, settings);
window.google.load('visualization', apiConfig.version, settings);
};
var head = document.getElementsByTagName('head')[0];
var script = document.createElement('script');
script.setAttribute('type', 'text/javascript');
script.src = googleJsapiUrl;
if (script.addEventListener) { // Standard browsers (including IE9+)
script.addEventListener('load', onLoad, false);
} else { // IE8 and below
script.onreadystatechange = function() {
if (script.readyState === 'loaded' || script.readyState === 'complete') {
script.onreadystatechange = null;
onLoad();
}
};
}
head.appendChild(script);
return apiReady.promise;
}
])
.directive('googleChart', ['$timeout', '$window', '$rootScope', 'googleChartApiPromise',
function($timeout, $window, $rootScope, googleChartApiPromise) {
return {
restrict: 'A',
scope: {
beforeDraw: '&',
chart: '=chart',
onReady: '&',
onSelect: '&',
select: '&'
},
link: function($scope, $elm, $attrs) {
/* Watches, to refresh the chart when its data, formatters, options, or type change.
All other values intentionally disregarded to avoid double calls to the draw
function. Please avoid making changes to these objects directly from this directive.*/
$scope.$watch(function() {
if ($scope.chart) {
return {
data: $scope.chart.data,
formatters: $scope.chart.formatters,
options: $scope.chart.options,
type: $scope.chart.type,
customFormatters: $scope.chart.customFormatters
};
}
return $scope.chart;
}, function() {
drawAsync();
}, true); // true is for deep object equality checking
// Redraw the chart if the window is resized
var resizeHandler = $rootScope.$on('resizeMsg', function() {
$timeout(function() {
// Not always defined yet in IE so check
if ($scope.chartWrapper) {
drawAsync();
}
});
});
//Cleanup resize handler.
$scope.$on('$destroy', function() {
resizeHandler();
});
// Keeps old formatter configuration to compare against
$scope.oldChartFormatters = {};
function applyFormat(formatType, formatClass, dataTable) {
if (typeof($scope.chart.formatters[formatType]) != 'undefined') {
if (!angular.equals($scope.chart.formatters[formatType], $scope.oldChartFormatters[formatType])) {
$scope.oldChartFormatters[formatType] = $scope.chart.formatters[formatType];
$scope.formatters[formatType] = [];
if (formatType === 'color') {
for (var cIdx = 0; cIdx < $scope.chart.formatters[formatType].length; cIdx++) {
var colorFormat = new formatClass();
for (i = 0; i < $scope.chart.formatters[formatType][cIdx].formats.length; i++) {
var data = $scope.chart.formatters[formatType][cIdx].formats[i];
if (typeof(data.fromBgColor) != 'undefined' && typeof(data.toBgColor) != 'undefined')
colorFormat.addGradientRange(data.from, data.to, data.color, data.fromBgColor, data.toBgColor);
else
colorFormat.addRange(data.from, data.to, data.color, data.bgcolor);
}
$scope.formatters[formatType].push(colorFormat);
}
} else {
for (var i = 0; i < $scope.chart.formatters[formatType].length; i++) {
$scope.formatters[formatType].push(new formatClass(
$scope.chart.formatters[formatType][i]));
}
}
}
//apply formats to dataTable
for (i = 0; i < $scope.formatters[formatType].length; i++) {
if ($scope.chart.formatters[formatType][i].columnNum < dataTable.getNumberOfColumns())
$scope.formatters[formatType][i].format(dataTable, $scope.chart.formatters[formatType][i].columnNum);
}
//Many formatters require HTML tags to display special formatting
if (formatType === 'arrow' || formatType === 'bar' || formatType === 'color')
$scope.chart.options.allowHtml = true;
}
}
function draw() {
if (!draw.triggered && ($scope.chart !== undefined)) {
draw.triggered = true;
$timeout(function() {
if (typeof($scope.chartWrapper) == 'undefined') {
var chartWrapperArgs = {
chartType: $scope.chart.type,
dataTable: $scope.chart.data,
view: $scope.chart.view,
options: $scope.chart.options,
containerId: $elm[0]
};
$scope.chartWrapper = new google.visualization.ChartWrapper(chartWrapperArgs);
google.visualization.events.addListener($scope.chartWrapper, 'ready', function() {
$scope.chart.displayed = true;
$scope.$apply(function(scope) {
scope.onReady({
chartWrapper: scope.chartWrapper
});
});
});
google.visualization.events.addListener($scope.chartWrapper, 'error', function(err) {
console.log("Chart not displayed due to error: " + err.message + ". Full error object follows.");
console.log(err);
});
google.visualization.events.addListener($scope.chartWrapper, 'select', function() {
var selectedItem = $scope.chartWrapper.getChart().getSelection()[0];
$scope.$apply(function() {
if ($attrs.select) {
console.log('Angular-Google-Chart: The \'select\' attribute is deprecated and will be removed in a future release. Please use \'onSelect\'.');
$scope.select({
selectedItem: selectedItem
});
} else {
$scope.onSelect({
selectedItem: selectedItem
});
}
});
});
} else {
$scope.chartWrapper.setChartType($scope.chart.type);
$scope.chartWrapper.setDataTable($scope.chart.data);
$scope.chartWrapper.setView($scope.chart.view);
$scope.chartWrapper.setOptions($scope.chart.options);
}
if (typeof($scope.formatters) === 'undefined')
$scope.formatters = {};
if (typeof($scope.chart.formatters) != 'undefined') {
applyFormat("number", google.visualization.NumberFormat, $scope.chartWrapper.getDataTable());
applyFormat("arrow", google.visualization.ArrowFormat, $scope.chartWrapper.getDataTable());
applyFormat("date", google.visualization.DateFormat, $scope.chartWrapper.getDataTable());
applyFormat("bar", google.visualization.BarFormat, $scope.chartWrapper.getDataTable());
applyFormat("color", google.visualization.ColorFormat, $scope.chartWrapper.getDataTable());
}
var customFormatters = $scope.chart.customFormatters;
if (typeof(customFormatters) != 'undefined') {
for (var name in customFormatters) {
applyFormat(name, customFormatters[name], $scope.chartWrapper.getDataTable());
}
}
$timeout(function() {
$scope.beforeDraw({
chartWrapper: $scope.chartWrapper
});
$scope.chartWrapper.draw();
draw.triggered = false;
});
}, 0, true);
}
}
function drawAsync() {
googleChartApiPromise.then(function() {
draw();
});
}
}
};
}
])
.run(['$rootScope', '$window',
function($rootScope, $window) {
angular.element($window).bind('resize', function() {
$rootScope.$emit('resizeMsg');
});
}
]);
})(document, window, window.angular);
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