fixed keyboard issue with default behaviour, still fighting a bug in binSearch that makes it loop forever...

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

ui/ImageGrid.js

@@ -160,6 +160,7 @@ function getImageBefore(image, ribbon, mode){
 //
 // NOTE: this is here mostly to make debuging easy...
 function isBetween(a, i, lst){
+	console.log('>>>', a, i, lst)
 	var b = lst[i]
 	var c = lst[i+1]
 	// hit...
@@ -182,6 +183,7 @@ function isBetween(a, i, lst){
 // NOTE: by default this will use isBetween as a predicate.
 // NOTE: this still depends on .indexOf(...), to disable set
 // 		disable_direct_indexing to true
+// XXX BUG this tends to fall into infinite loops...
 function binSearch(target, lst, check, return_position, disable_direct_indexing){
 	// XXX is this the correct default?
 	check = check == null ? isBetween : check
@@ -195,13 +197,16 @@ function binSearch(target, lst, check, return_position, disable_direct_indexing)
 		return lst[lst.length-1]
 	}
 	// special case: head...
-	if(check(target, 0, lst) == 0){
+	var res = check(target, 0, lst)
+	if(res == 0){
 		return lst[0]
+	} else if(res < 0){
+		// no hit...
+		return return_position ? -1 : null
 	}
 
 	var l = Math.ceil(lst.length/2)
 	var i = l
-	var res
 
 	while(l > 0){
 		l = Math.ceil(l/2)

ui/index.html

@@ -234,6 +234,7 @@ $(function(){
 	//var rr = r.clone()
 	//var rrr = r.clone()
 
+	// XXX use something like loadImages()...
 	$('.ribbon-set')
 		.append(r)
 		//.append(rr)
@@ -250,8 +251,11 @@ $(function(){
 			function(k){console.log(k)}))
 
 
+
 	// dynamic loading...
-	if(true){
+	DYNAMIC_LOADING = true
+
+	if(DYNAMIC_LOADING){
 		// XXX move to a setup function in the lib...
 		// XXX update this depending on zoom and navigation speed...
 		var LOADER_THRESHOLD = 2

ui/keybindings3.js

@@ -76,42 +76,48 @@ var KEYBOARD_CONFIG = {
 			},
 		*/
 		Home: function(){
+				event.preventDefault()
 				firstImage()
 				centerRibbons()
-				return false
 			},
 		End: function(){
+				event.preventDefault()
 				lastImage()
 				centerRibbons()
-				return false
 			},
 
 
 		// combined navigation and editor actions...
 		Up: {
 				default: function(){ 
+					event.preventDefault()
 					prevRibbon(DIRECTION) 
 					centerRibbons()
 				},
 				shift: function(){ 
+					event.preventDefault()
 					shiftImageUp(null, DIRECTION) 
 					centerRibbons()
 				},
 				'ctrl+shift': function(){
+					event.preventDefault()
 					shiftImageUpNewRibbon(null, DIRECTION) 
 					centerRibbons()
 				},
 			},
 		Down: {
 				default: function(){
+					event.preventDefault()
 					nextRibbon(DIRECTION) 
 					centerRibbons()
 				},
 				shift: function(){
+					event.preventDefault()
 					shiftImageDown(null, DIRECTION) 
 					centerRibbons()
 				},
 				'ctrl+shift': function(){
+					event.preventDefault()
 					shiftImageDownNewRibbon(null, DIRECTION) 
 					centerRibbons()
 				},