Merge pull request #215 from wesrage/#196

Support case-insensitive filtering when matchPos="start"

Author: dcousens

README.md

@@ -123,15 +123,17 @@ You can control how options are filtered with the following properties:
 
 * `matchPos`: `"start"` or `"any"`: whether to match the text entered at the start or any position in the option value
 * `matchProp`: `"label"`, `"value"` or `"any"`: whether to match the value, label or both values of each option when filtering
+* `ignoreCase`: `Boolean`: whether to ignore case or match the text exactly when filtering
 
-Both properties default to `"any"`.
+`matchProp` and `matchPos` both default to `"any"`.
+`ignoreCase` defaults to `true`.
 
 #### Advanced filters
 
 You can also completely replace the method used to filter either a single option, or the entire options array (allowing custom sort mechanisms, etc.)
 
-* `filterOption`: `function(Object option, String filter)` returns `Boolean`. Will override `matchPos` and `matchProp` options.
-* `filterOptions`: `function(Array options, String filter, Array currentValues)` returns `Array filteredOptions`. Will override `filterOption`, `matchPos` and `matchProp` options.
+* `filterOption`: `function(Object option, String filter)` returns `Boolean`. Will override `matchPos`, `matchProp` and `ignoreCase` options.
+* `filterOptions`: `function(Array options, String filter, Array currentValues)` returns `Array filteredOptions`. Will override `filterOption`, `matchPos`, `matchProp` and `ignoreCase` options.
 
 For multi-select inputs, when providing a custom `filterOptions` method, remember to exclude current values from the returned array of options.
 
@@ -163,6 +165,7 @@ For multi-select inputs, when providing a custom `filterOptions` method, remembe
 	filterOptions 		|	func		|	 method to filter the options array: function([options], filterString, [values])
 	matchPos 			|	string		|	 (any, start) match the start or entire string when filtering
 	matchProp 			|	string		|	 (any, label, value) which option property to filter on
+	ignoreCase 			|	bool		|	 whether to perform case-insensitive filtering
 	inputProps 			|	object		|	 custom attributes for the Input (in the Select-control) e.g: {'data-foo': 'bar'}
 
 

src/Select.js

@@ -33,6 +33,7 @@ var Select = React.createClass({
 		filterOptions: React.PropTypes.func,       // method to filter the options array: function([options], filterString, [values])
 		matchPos: React.PropTypes.string,          // (any|start) match the start or entire string when filtering
 		matchProp: React.PropTypes.string,         // (any|label|value) which option property to filter on
+		ignoreCase: React.PropTypes.bool,          // whether to perform case-insensitive filtering
 		inputProps: React.PropTypes.object,        // custom attributes for the Input (in the Select-control) e.g: {'data-foo': 'bar'}
 		allowCreate: React.PropTypes.bool,         // wether to allow creation of new entries
 		/*
@@ -65,6 +66,7 @@ var Select = React.createClass({
 			className: undefined,
 			matchPos: 'any',
 			matchProp: 'any',
+			ignoreCase: true,
 			inputProps: {},
 			allowCreate: false,
 
@@ -525,12 +527,17 @@ var Select = React.createClass({
 				if (this.props.multi && exclude.indexOf(op.value) > -1) return false;
 				if (this.props.filterOption) return this.props.filterOption.call(this, op, filterValue);
 				var valueTest = String(op.value), labelTest = String(op.label);
+				if (this.props.ignoreCase) {
+					valueTest = valueTest.toLowerCase();
+					labelTest = labelTest.toLowerCase();
+					filterValue = filterValue.toLowerCase();
+				}
 				return !filterValue || (this.props.matchPos === 'start') ? (
-					(this.props.matchProp !== 'label' && valueTest.toLowerCase().substr(0, filterValue.length) === filterValue) ||
-					(this.props.matchProp !== 'value' && labelTest.toLowerCase().substr(0, filterValue.length) === filterValue)
+					(this.props.matchProp !== 'label' && valueTest.substr(0, filterValue.length) === filterValue) ||
+					(this.props.matchProp !== 'value' && labelTest.substr(0, filterValue.length) === filterValue)
 				) : (
-					(this.props.matchProp !== 'label' && valueTest.toLowerCase().indexOf(filterValue.toLowerCase()) >= 0) ||
-					(this.props.matchProp !== 'value' && labelTest.toLowerCase().indexOf(filterValue.toLowerCase()) >= 0)
+					(this.props.matchProp !== 'label' && valueTest.indexOf(filterValue) >= 0) ||
+					(this.props.matchProp !== 'value' && labelTest.indexOf(filterValue) >= 0)
 				);
 			};
 			return (options || []).filter(filterOption, this);