diff options
Diffstat (limited to 'js/dojo-1.6/dojo/dnd/autoscroll.xd.js')
| -rw-r--r-- | js/dojo-1.6/dojo/dnd/autoscroll.xd.js | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/js/dojo-1.6/dojo/dnd/autoscroll.xd.js b/js/dojo-1.6/dojo/dnd/autoscroll.xd.js new file mode 100644 index 0000000..a84fc3d --- /dev/null +++ b/js/dojo-1.6/dojo/dnd/autoscroll.xd.js @@ -0,0 +1,108 @@ +/*
+ Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
+ Available via Academic Free License >= 2.1 OR the modified BSD license.
+ see: http://dojotoolkit.org/license for details
+*/
+
+
+dojo._xdResourceLoaded(function(dojo, dijit, dojox){
+return {depends: [["provide", "dojo.dnd.autoscroll"],
+["require", "dojo.window"]],
+defineResource: function(dojo, dijit, dojox){if(!dojo._hasResource["dojo.dnd.autoscroll"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dojo.dnd.autoscroll"] = true;
+dojo.provide("dojo.dnd.autoscroll");
+dojo.require("dojo.window");
+
+
+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!
+ for(var n = e.target; n;){
+ if(n.nodeType == 1 && (n.tagName.toLowerCase() in dojo.dnd._validNodes)){
+ var s = dojo.getComputedStyle(n);
+ if(s.overflow.toLowerCase() in dojo.dnd._validOverflow){
+ var b = dojo._getContentBox(n, s), t = dojo.position(n, true);
+ //console.log(b.l, b.t, t.x, t.y, n.scrollLeft, n.scrollTop);
+ var w = Math.min(dojo.dnd.H_TRIGGER_AUTOSCROLL, b.w / 2),
+ h = Math.min(dojo.dnd.V_TRIGGER_AUTOSCROLL, b.h / 2),
+ rx = e.pageX - t.x, ry = e.pageY - t.y, dx = 0, dy = 0;
+ 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;
+ ry += dojo.body().scrollTop;
+ }
+ if(rx > 0 && rx < b.w){
+ if(rx < w){
+ dx = -w;
+ }else if(rx > b.w - w){
+ dx = w;
+ }
+ }
+ //console.log("ry =", ry, "b.h =", b.h, "h =", h);
+ if(ry > 0 && ry < b.h){
+ if(ry < h){
+ dy = -h;
+ }else if(ry > b.h - h){
+ dy = h;
+ }
+ }
+ var oldLeft = n.scrollLeft, oldTop = n.scrollTop;
+ n.scrollLeft = n.scrollLeft + dx;
+ n.scrollTop = n.scrollTop + dy;
+ if(oldLeft != n.scrollLeft || oldTop != n.scrollTop){ return; }
+ }
+ }
+ try{
+ n = n.parentNode;
+ }catch(x){
+ n = null;
+ }
+ }
+ dojo.dnd.autoScroll(e);
+};
+
+}
+
+}};});
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