slideshow fixes + button...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>

ui (gen4)/features/ui-slideshow.js

@@ -29,6 +29,8 @@ var overlay = require('lib/widget/overlay')
 // XXX would be a good idea to add provision for a timer to indicate 
 // 		slideshow progress/status... 
 // 			- make this a separate feature with a toggler
+// XXX might be a good idea to add "slideshow hold", for example while 
+// 		mouse down...
 var SlideshowActions = actions.Actions({
 	config: {
 		'slideshow-looping': 'on',
@@ -125,6 +127,7 @@ var SlideshowActions = actions.Actions({
 				}
 			})],
 
+	// XXX should this reflect slideshow state???? (ready, running, paused???)
 	slideshowDialog: ['Slideshow/Slideshow...',
 		widgets.makeUIDialog(function(){
 			var that = this
@@ -299,6 +302,9 @@ module.Slideshow = core.ImageGridFeatures.Feature({
 				} 
 			}],
 
+		['load',
+			function(){ this.toggleSlideshow('off') }],
+
 		// - build the slideshow workspace for the first time if it's not
 		// 		present yet (is null)...
 		// - restore .config['single-image-toggle-on-click']

ui (gen4)/features/ui-widgets.js

@@ -1976,6 +1976,10 @@ var ButtonsActions = actions.Actions({
 			'C<sub/>': ['crop', 'browseActions: "Crop/" -- Crop menu...'],
 			//'&#9636;<sub/>': ['collections', 'browseCollections -- Collections...'],
 			//'&#9974;': ['view', 'toggleSingleImage -- Single image / ribbon toggle'],
+			'&#9655;': ['slideshow', [
+				'toggleSlideshow -- Toggle slideshow',
+				'slideshowDialog -- Slideshow menu...',
+			]],
 		},
 
 		// XXX not sure about these yet...
@@ -2129,6 +2133,15 @@ module.Buttons = core.ImageGridFeatures.Feature({
 					.html(this.collection ? '&#9679;' : '')
 				//*/
 		   	}],
+		// update slideshow status...
+		['toggleSlideshow',
+			function(){
+				$('.main-buttons.buttons .slideshow.button')
+					.html(this.toggleSlideshow('?') == 'on' ? 
+						'&#9724;' 
+						//'&#9723;'
+						: '&#9655;')
+			}],
 		// update zoom button status...
 		['viewScale', 
 			function(){