1 files changed, 169 insertions, 0 deletions
diff --git a/ui/widgets/progressbar.js b/ui/widgets/progressbar.js
new file mode 100644
index 000000000..a52cbb713
--- /dev/null
+++ b/ui/widgets/progressbar.js
@@ -0,0 +1,169 @@
+/*!
+ * jQuery UI Progressbar @VERSION
+ * http://jqueryui.com
+ *
+ * Copyright jQuery Foundation and other contributors
+ * Released under the MIT license.
+ * http://jquery.org/license
+ */
+
+//>>label: Progressbar
+//>>group: Widgets
+//>>description: Displays a status indicator for loading state, standard percentage, and other progress indicators.
+//>>docs: http://api.jqueryui.com/progressbar/
+//>>demos: http://jqueryui.com/progressbar/
+//>>css.structure: ../themes/base/core.css
+//>>css.structure: ../themes/base/progressbar.css
+//>>css.theme: ../themes/base/theme.css
+
+( function( factory ) {
+	if ( typeof define === "function" && define.amd ) {
+
+		// AMD. Register as an anonymous module.
+		define( [
+			"jquery",
+			"../version",
+			"../widget"
+		], factory );
+	} else {
+
+		// Browser globals
+		factory( jQuery );
+	}
+}( function( $ ) {
+
+return $.widget( "ui.progressbar", {
+	version: "@VERSION",
+	options: {
+		classes: {
+			"ui-progressbar": "ui-corner-all",
+			"ui-progressbar-value": "ui-corner-left",
+			"ui-progressbar-complete": "ui-corner-right"
+		},
+		max: 100,
+		value: 0,
+
+		change: null,
+		complete: null
+	},
+
+	min: 0,
+
+	_create: function() {
+
+		// Constrain initial value
+		this.oldValue = this.options.value = this._constrainedValue();
+
+		this.element.attr( {
+
+			// Only set static values; aria-valuenow and aria-valuemax are
+			// set inside _refreshValue()
+			role: "progressbar",
+			"aria-valuemin": this.min
+		} );
+		this._addClass( "ui-progressbar", "ui-widget ui-widget-content" );
+
+		this.valueDiv = $( "<div>" ).appendTo( this.element );
+		this._addClass( this.valueDiv, "ui-progressbar-value", "ui-widget-header" );
+		this._refreshValue();
+	},
+
+	_destroy: function() {
+		this.element.removeAttr( "role aria-valuemin aria-valuemax aria-valuenow" );
+
+		this.valueDiv.remove();
+	},
+
+	value: function( newValue ) {
+		if ( newValue === undefined ) {
+			return this.options.value;
+		}
+
+		this.options.value = this._constrainedValue( newValue );
+		this._refreshValue();
+	},
+
+	_constrainedValue: function( newValue ) {
+		if ( newValue === undefined ) {
+			newValue = this.options.value;
+		}
+
+		this.indeterminate = newValue === false;
+
+		// sanitize value
+		if ( typeof newValue !== "number" ) {
+			newValue = 0;
+		}
+
+		return this.indeterminate ? false :
+			Math.min( this.options.max, Math.max( this.min, newValue ) );
+	},
+
+	_setOptions: function( options ) {
+		// Ensure "value" option is set after other values (like max)
+		var value = options.value;
+		delete options.value;
+
+		this._super( options );
+
+		this.options.value = this._constrainedValue( value );
+		this._refreshValue();
+	},
+
+	_setOption: function( key, value ) {
+		if ( key === "max" ) {
+			// Don't allow a max less than min
+			value = Math.max( this.min, value );
+		}
+		if ( key === "disabled" ) {
+			this.element.attr( "aria-disabled", value );
+			this._toggleClass( null, "ui-state-disabled", !!value );
+		}
+		this._super( key, value );
+	},
+
+	_percentage: function() {
+		return this.indeterminate ? 100 : 100 * ( this.options.value - this.min ) / ( this.options.max - this.min );
+	},
+
+	_refreshValue: function() {
+		var value = this.options.value,
+			percentage = this._percentage();
+
+		this.valueDiv
+			.toggle( this.indeterminate || value > this.min )
+			.width( percentage.toFixed( 0 ) + "%" );
+
+		this
+			._toggleClass( this.valueDiv, "ui-progressbar-complete", null,
+				value === this.options.max )
+			._toggleClass( "ui-progressbar-indeterminate", null, this.indeterminate );
+
+		if ( this.indeterminate ) {
+			this.element.removeAttr( "aria-valuenow" );
+			if ( !this.overlayDiv ) {
+				this.overlayDiv = $( "<div>" ).appendTo( this.valueDiv );
+				this._addClass( this.overlayDiv, "ui-progressbar-overlay" );
+			}
+		} else {
+			this.element.attr( {
+				"aria-valuemax": this.options.max,
+				"aria-valuenow": value
+			} );
+			if ( this.overlayDiv ) {
+				this.overlayDiv.remove();
+				this.overlayDiv = null;
+			}
+		}
+
+		if ( this.oldValue !== value ) {
+			this.oldValue = value;
+			this._trigger( "change" );
+		}
+		if ( value === this.options.max ) {
+			this._trigger( "complete" );
+		}
+	}
+} );
+
+} ) );