1 files changed, 118 insertions, 0 deletions
diff --git a/lib/dojo/dnd/autoscroll.js.uncompressed.js b/lib/dojo/dnd/autoscroll.js.uncompressed.js
new file mode 100644
index 000000000..2fbeca2ec
--- /dev/null
+++ b/lib/dojo/dnd/autoscroll.js.uncompressed.js
@@ -0,0 +1,118 @@
+define("dojo/dnd/autoscroll", ["../main", "../window"], function(dojo) {
+	// module:
+	//		dojo/dnd/autoscroll
+	// summary:
+	//		TODOC
+
+dojo.getObject("dnd", true, dojo);
+
+dojo.dnd.getViewport = dojo.window.getBox;
+
+dojo.dnd.V_TRIGGER_AUTOSCROLL = 32;
+dojo.dnd.H_TRIGGER_AUTOSCROLL = 32;
+
+dojo.dnd.V_AUTOSCROLL_VALUE = 16;
+dojo.dnd.H_AUTOSCROLL_VALUE = 16;
+
+dojo.dnd.autoScroll = function(e){
+	// summary:
+	//		a handler for onmousemove event, which scrolls the window, if
+	//		necesary
+	// e: Event
+	//		onmousemove event
+
+	// FIXME: needs more docs!
+	var v = dojo.window.getBox(), dx = 0, dy = 0;
+	if(e.clientX < dojo.dnd.H_TRIGGER_AUTOSCROLL){
+		dx = -dojo.dnd.H_AUTOSCROLL_VALUE;
+	}else if(e.clientX > v.w - dojo.dnd.H_TRIGGER_AUTOSCROLL){
+		dx = dojo.dnd.H_AUTOSCROLL_VALUE;
+	}
+	if(e.clientY < dojo.dnd.V_TRIGGER_AUTOSCROLL){
+		dy = -dojo.dnd.V_AUTOSCROLL_VALUE;
+	}else if(e.clientY > v.h - dojo.dnd.V_TRIGGER_AUTOSCROLL){
+		dy = dojo.dnd.V_AUTOSCROLL_VALUE;
+	}
+	window.scrollBy(dx, dy);
+};
+
+dojo.dnd._validNodes = {"div": 1, "p": 1, "td": 1};
+dojo.dnd._validOverflow = {"auto": 1, "scroll": 1};
+
+dojo.dnd.autoScrollNodes = function(e){
+	// summary:
+	//		a handler for onmousemove event, which scrolls the first avaialble
+	//		Dom element, it falls back to dojo.dnd.autoScroll()
+	// e: Event
+	//		onmousemove event
+
+	// FIXME: needs more docs!
+
+	var b, t, w, h, rx, ry, dx = 0, dy = 0, oldLeft, oldTop;
+
+	for(var n = e.target; n;){
+		if(n.nodeType == 1 && (n.tagName.toLowerCase() in dojo.dnd._validNodes)){
+			var s = dojo.getComputedStyle(n),
+				overflow = (s.overflow.toLowerCase() in dojo.dnd._validOverflow),
+				overflowX = (s.overflowX.toLowerCase() in dojo.dnd._validOverflow),
+				overflowY = (s.overflowY.toLowerCase() in dojo.dnd._validOverflow);
+			if(overflow || overflowX || overflowY){
+				b = dojo._getContentBox(n, s);
+				t = dojo.position(n, true);
+			}
+			// overflow-x
+			if(overflow || overflowX){
+				w = Math.min(dojo.dnd.H_TRIGGER_AUTOSCROLL, b.w / 2);
+				rx = e.pageX - t.x;
+				if(dojo.isWebKit || dojo.isOpera){
+					// FIXME: this code should not be here, it should be taken into account
+					// either by the event fixing code, or the dojo.position()
+					// FIXME: this code doesn't work on Opera 9.5 Beta
+					rx += dojo.body().scrollLeft;
+				}
+				dx = 0;
+				if(rx > 0 && rx < b.w){
+					if(rx < w){
+						dx = -w;
+					}else if(rx > b.w - w){
+						dx = w;
+					}
+					oldLeft = n.scrollLeft;
+					n.scrollLeft = n.scrollLeft + dx;
+				}
+			}
+			// overflow-y
+			if(overflow || overflowY){
+				//console.log(b.l, b.t, t.x, t.y, n.scrollLeft, n.scrollTop);
+				h = Math.min(dojo.dnd.V_TRIGGER_AUTOSCROLL, b.h / 2);
+				ry = e.pageY - t.y;
+				if(dojo.isWebKit || dojo.isOpera){
+					// FIXME: this code should not be here, it should be taken into account
+					// either by the event fixing code, or the dojo.position()
+					// FIXME: this code doesn't work on Opera 9.5 Beta
+					ry += dojo.body().scrollTop;
+				}
+				dy = 0;
+				if(ry > 0 && ry < b.h){
+					if(ry < h){
+						dy = -h;
+					}else if(ry > b.h - h){
+						dy = h;
+					}
+					oldTop = n.scrollTop;
+					n.scrollTop  = n.scrollTop  + dy;
+				}
+			}
+			if(dx || dy){ return; }
+		}
+		try{
+			n = n.parentNode;
+		}catch(x){
+			n = null;
+		}
+	}
+	dojo.dnd.autoScroll(e);
+};
+
+	return dojo.dnd;
+});