1 files changed, 43 insertions, 0 deletions
diff --git a/resources/src/jquery/jquery.checkboxShiftClick.js b/resources/src/jquery/jquery.checkboxShiftClick.js
new file mode 100644
index 00000000..d99e9f0a
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+++ b/resources/src/jquery/jquery.checkboxShiftClick.js
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+/**
+ * @class jQuery.plugin.checkboxShiftClick
+ */
+( function ( $ ) {
+
+	/**
+	 * Enable checkboxes to be checked or unchecked in a row by clicking one,
+	 * holding shift and clicking another one.
+	 *
+	 * @return {jQuery}
+	 * @chainable
+	 */
+	$.fn.checkboxShiftClick = function () {
+		var prevCheckbox = null,
+			$box = this;
+		// When our boxes are clicked..
+		$box.click( function ( e ) {
+			// And one has been clicked before...
+			if ( prevCheckbox !== null && e.shiftKey ) {
+				// Check or uncheck this one and all in-between checkboxes,
+				// except for disabled ones
+				$box
+					.slice(
+						Math.min( $box.index( prevCheckbox ), $box.index( e.target ) ),
+						Math.max( $box.index( prevCheckbox ), $box.index( e.target ) ) + 1
+					)
+					.filter( function () {
+						return !this.disabled;
+					} )
+					.prop( 'checked', !!e.target.checked );
+			}
+			// Either way, update the prevCheckbox variable to the one clicked now
+			prevCheckbox = e.target;
+		} );
+		return $box;
+	};
+
+	/**
+	 * @class jQuery
+	 * @mixins jQuery.plugin.checkboxShiftClick
+	 */
+
+}( jQuery ) );