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Refactoring to put browser specific code in a new class (#3718)

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Refactoring to put browser specific code in a new class, BrowserPlatform.
BrowserPlatform implements IPlatform. Chart.Platform is the constructor for the platform object that is attached to the chart instance.

Plugins are notified about the event using the `onEvent` call. The legend plugin was converted to use onEvent instead of the older private `handleEvent` method.
Wrote test to check that plugins are notified about events
This commit is contained in:
Evert Timberg
2016-12-21 10:22:05 -05:00
committed by GitHub
parent 5387c48bd8
commit ecc35c527b
9 changed files with 677 additions and 455 deletions
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8
docs/09-Advanced.md
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@@ -410,6 +410,7 @@ Plugins will be called at the following times
* After datasets draw
* Resize
* Before an animation is started
* When an event occurs on the canvas (mousemove, click, etc). This requires the `options.events` property handled
Plugins should derive from Chart.PluginBase and implement the following interface
```javascript
@@ -437,6 +438,13 @@ Plugins should derive from Chart.PluginBase and implement the following interfac
afterDatasetsDraw: function(chartInstance, easing) { },
destroy: function(chartInstance) { }
/**
* Called when an event occurs on the chart
* @param e {Core.Event} the Chart.js wrapper around the native event. e.native is the original event
* @return {Boolean} true if the chart is changed and needs to re-render
*/
onEvent: function(chartInstance, e) {}
}
```