started work on drag-n-drop...

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

grid-n-view.js

@@ -118,7 +118,7 @@ var keyboard = {
 			|| gallery.down() },
 	Enter: function(){
 		gallery.lightbox.toggle() },
-	Escape: function(){
+	Escape: function(evt){
 		gallery.lightbox.shown ?
 			gallery.lightbox.hide() 
 		// XXX should we remember which image was current and select 
@@ -239,7 +239,6 @@ var Gallery = {
 		img.scrollIntoView({
 			behavior: 'smooth',
 			block: 'nearest',
-			offset: 10,
 		}) 
 		// helpers...
 		this.__at_top_row = !this.getRow('above')
@@ -532,6 +531,16 @@ var Gallery = {
 			.addEventListener('click', function(evt){
 				that.deselect_current
 					&& (that.current = null) })
+		// drag...
+		this.dom
+			.addEventListener('dragover', function(evt){
+				// XXX
+			})
+		this.dom
+			.addEventListener('drop', function(evt){
+				evt.preventDefault()
+				// XXX
+			})
 
 		// handle resizing...
 		new ResizeObserver(
@@ -654,6 +663,14 @@ var Lightbox = {
 				document.fullscreenElement ?
 					document.exitFullscreen()
 					: that.dom.requestFullscreen() })
+		// drag...
+		this.dom
+			.addEventListener('dragover', function(evt){
+				that.gallery.dom.scrollIntoView({
+					behavior: 'smooth',
+					block: 'nearest',
+				})
+				that.hide() })
 		// click...
 		var deadzone = this.navigation_deadzone ?? 100
 		this.dom