Update docs + remove unused config option since we don't need 2 different callbacks.

docs/00-Getting-Started.md

@@ -126,7 +126,7 @@ Name | Type | Default | Description
 display | Boolean | true | Is the legend displayed
 position | String | 'top' | Position of the legend. Options are 'top' or 'bottom'
 fullWidth | Boolean | true | Marks that this box should take the full width of the canvas (pushing down other boxes)
-onClick | Function | false | A callback that will override the default behavior of toggling the datasets
+onClick | Function | `function(event, legendItem) {}` | A callback that is called when a click is registered on top of a label item
 labels |-|-|-
 *labels*boxWidth | Number | 40 | Width of coloured box
 *labels*fontSize | Number | 12 | Font size
@@ -134,7 +134,7 @@ labels |-|-|-
 *labels*fontColor | Color | "#666" |
 *labels*fontFamily | String | "Helvetica Neue" |
 *labels*padding | Number | 10 | Padding between rows of colored boxes
-*labels*callback: | Function | `function(dataset) { return '' + value; } | Generate the text for a dataset in the label
+*labels*generateLabels: | Function | `function(data) {  } | Generates legend items for each thing in the legend. Default implementation returns the text + styling for the color box. Styles that can be returned are `fillStyle`, `strokeStyle`, `lineCap`, `lineDash`, `lineDashOffset`, `lineWidth`, `lineJoin`. Return a `hidden` attribute to indicate that the label refers to something that is not visible. A strikethrough style will be given to the text in this case.
 
 The global options for tooltips are defined in `Chart.defaults.global.tooltips`.
 

docs/05-Polar-Area-Chart.md

@@ -67,6 +67,8 @@ scale | Array | [See Scales](#scales) and [Defaults for Radial Linear Scale](#ge
 *scale*.lineArc | Boolean | true | When true, lines are circular.
 *animation*.animateRotate | Boolean |true | If true, will animate the rotation of the chart.
 *animation*.animateScale | Boolean | true | If true, will animate scaling the chart.
+*legend*.*labels*.generateLabels | Function | `function(data) {} ` | Returns labels for each the legend
+*legend*.onClick | Function | function(event, legendItem) {} ` | Handles clicking an individual legend item
 
 You can override these for your `Chart` instance by passing a second argument into the `PolarArea` method as an object with the keys you want to override.
 

docs/06-Pie-Doughnut-Chart.md

@@ -78,6 +78,8 @@ scale | Array | [See Scales](#scales) and [Defaults for Radial Linear Scale](#ge
 *scale*.lineArc | Boolean | true | When true, lines are arced compared to straight when false.
 *animation*.animateRotate | Boolean |true | If true, will animate the rotation of the chart.
 *animation*.animateScale | Boolean | false | If true, will animate scaling the Doughnut from the centre.
+*legend*.*labels*.generateLabels | Function | `function(data) {} ` | Returns labels for each the legend
+*legend*.onClick | Function | function(event, legendItem) {} ` | Handles clicking an individual legend item
 
 You can override these for your `Chart` instance by passing a second argument into the `Doughnut` method as an object with the keys you want to override.
 

src/core/core.legend.js

@@ -27,10 +27,6 @@
 			fontColor: "#666",
 			fontFamily: "Helvetica Neue",
 			padding: 10,
-			callback: function(dataset) {
-				return '' + dataset.label;
-			},
-
 			// Generates labels shown in the legend
 			// Valid properties to return:
 			// text : text to display
@@ -45,7 +41,7 @@
 			generateLabels: function(data) {
 				return data.datasets.map(function(dataset, i) {
 					return {
-						text: this.options.labels.callback.call(this, dataset),
+						text: dataset.label,
 						fillStyle: dataset.backgroundColor,
 						hidden: dataset.hidden,
 						lineCap: dataset.borderCapStyle,