121 lines
3.2 KiB
JavaScript
121 lines
3.2 KiB
JavaScript
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var _ = require('underscore');
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var d3 = require('d3');
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var CoreView = require('backbone/core-view');
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/**
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* Animate between two values
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*/
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module.exports = CoreView.extend({
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animateFromValues: function (from, to, className, template, opts) {
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var $el = this.$(className);
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var options = opts || {};
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var formatter = options.formatter || d3.format('0,000');
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var templateData = options.templateData || {};
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var debounceWait = options.debounceWait || 500;
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var hasDecimals = (to % 1 === 0);
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var stepValue = function (i) {
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i = hasDecimals ? Math.round(i) : i;
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var value = (_.isNaN(i) || i === undefined) ? (options.defaultValue || 0) : formatter(i);
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var data = _.extend({ value: value }, templateData);
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$el.text(template(data));
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};
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if (options.animationSpeed === 0) {
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stepValue(to);
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return;
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}
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stepValue(from);
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var animate = _.debounce(function () {
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$el.prop('counter', from).stop().animate({ counter: to }, {
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duration: options.animationSpeed || 500,
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easing: options.easingMethod || 'swing',
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step: stepValue
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});
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}, debounceWait);
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animate();
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},
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animateFromCurrentValue: function (value, className, template, opts) {
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var $el = this.$(className);
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var options = opts || {};
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var debounceWait = options.debounceWait || 500;
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var to = value;
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var from = +this.$(className).text();
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var formatter = options.formatter || d3.format('0,000');
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var templateData = options.templateData || {};
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var hasDecimals = (to % 1 === 0);
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var stepValue = function (i) {
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i = hasDecimals ? Math.round(i) : i;
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value = (_.isNaN(i) || i === undefined) ? (options.defaultValue || 0) : formatter(i);
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var data = _.extend({ value: value }, templateData);
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$el.text(template(data));
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};
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if (options.animationSpeed === 0) {
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stepValue(to);
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return;
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}
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stepValue(from);
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var animate = _.debounce(function () {
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$el.prop('counter', from).stop().animate({ counter: to }, {
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duration: options.animationSpeed || 500,
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easing: options.easingMethod || 'swing',
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step: stepValue
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});
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}, debounceWait);
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animate();
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},
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animateValue: function (model, what, className, template, opts) {
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var $el = this.$(className);
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var options = opts || {};
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var debounceWait = options.debounceWait || 500;
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var to = model.get(what);
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var from = model.previous(what) || 0;
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var formatter = options.formatter || d3.format('0,000');
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var templateData = options.templateData || {};
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var hasDecimals = (to % 1 === 0);
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var stepValue = function (i) {
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i = hasDecimals ? Math.round(i) : i;
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var value = (_.isNaN(i) || i === undefined) ? (options.defaultValue || 0) : formatter(i);
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var data = _.extend({ value: value }, templateData);
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$el.text(template(data));
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};
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if (options.animationSpeed === 0) {
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stepValue(to);
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return;
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}
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stepValue(from);
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var animate = _.debounce(function () {
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$el.prop('counter', from).stop().animate({ counter: to }, {
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duration: options.animationSpeed || 500,
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easing: options.easingMethod || 'swing',
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step: stepValue
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});
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}, debounceWait);
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animate();
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}
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});
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