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Add in a beforeRender plugin event. Makes it easier to handle things that need to happen once at the start of animation but not on every frame

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This commit is contained in:
Evert Timberg 2016-04-22 21:04:55 -04:00
parent aac9726f7f
commit f6f8fe5959
2 changed files with 5 additions and 0 deletions
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4
docs/07-Advanced.md
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@ -390,6 +390,10 @@ Plugins should derive from Chart.PluginBase and implement the following interfac
beforeUpdate: function(chartInstance) { },
afterUpdate: function(chartInstance) { },
// This is called at the start of a render. It is only called once, even if the animation will run for a number of frames. Use beforeDraw or afterDraw
// to do something on each animation frame
beforeRender: function(chartInstance) { },
// Easing is for animation
beforeDraw: function(chartInstance, easing) { },
afterDraw: function(chartInstance, easing) { }

1
src/core/core.controller.js
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@ -272,6 +272,7 @@ module.exports = function(Chart) {
},
render: function render(duration, lazy) {
Chart.pluginService.notifyPlugins('beforeRender', [this]);
if (this.options.animation && ((typeof duration !== 'undefined' && duration !== 0) || (typeof duration === 'undefined' && this.options.animation.duration !== 0))) {
var animation = new Chart.Animation();