+/*
+ * brisk - dom-drag.js
+ *
+ * Copyright (C) 2006-2011 Matteo Nastasi
+ * mailto: nastasi@alternativeoutput.it
+ * matteo.nastasi@milug.org
+ * web: http://www.alternativeoutput.it
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABLILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details. You should have received a
+ * copy of the GNU General Public License along with this program; if
+ * not, write to the Free Software Foundation, Inc, 59 Temple Place -
+ * Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+/**************************************************
+ * dom-drag.js
+ * 09.25.2001
+ * www.youngpup.net
+ **************************************************
+ * 10.28.2001 - fixed minor bug where events
+ * sometimes fired off the handle, not the root.
+ **************************************************/
+
+function xynt_dd(mouseup_cb, minX, maxX, minY, maxY, bSwapHorzRef, bSwapVertRef, fXMapper, fYMapper)
+{
+ xynt_connect.call(this);
+
+ this.onmousedown = xynt_dd.prototype.start;
+ this.mouseup_cb = mouseup_cb;
+
+ this.hmode = bSwapHorzRef ? false : true ;
+ this.vmode = bSwapVertRef ? false : true ;
+
+ this.root = (this.xynt_dom_el && this.xynt_dom_el != null) ? this.xynt_dom_el : this ;
+
+ if (this.hmode && isNaN(parseInt(this.root.style.left))) {
+ var res = parseInt(getStyle(o, "left", "left"));
+ if (isNaN(res)) {
+ this.root.style.left = "0px";
+ }
+ else {
+ this.root.style.left = res;
+ }
+ }
+ if (this.vmode && isNaN(parseInt(this.root.style.top ))) {
+ var res = parseInt(getStyle(o, "top", "top"));
+ if (isNaN(res)) {
+ this.root.style.top = "0px";
+ }
+ else {
+ this.root.style.top = res;
+ }
+ }
+ if (!this.hmode && isNaN(parseInt(this.root.style.right ))) this.root.style.right = "0px";
+ if (!this.vmode && isNaN(parseInt(this.root.style.bottom))) this.root.style.bottom = "0px";
+
+ this.minX = typeof minX != 'undefined' ? minX : null;
+ this.minY = typeof minY != 'undefined' ? minY : null;
+ this.maxX = typeof maxX != 'undefined' ? maxX : null;
+ this.maxY = typeof maxY != 'undefined' ? maxY : null;
+
+ this.xMapper = fXMapper ? fXMapper : null;
+ this.yMapper = fYMapper ? fYMapper : null;
+
+ this.root.onDragStart = new Function();
+ this.root.onDragEnd = new Function();
+ this.root.onDrag = new Function();
+}
+
+xynt_dd.prototype = {
+
+ obj : null,
+
+ start : function(e)
+ {
+ var o = xynt_dd.obj = this;
+ e = xynt_dd.prototype.fixE(e);
+
+ if (!e)
+ var e = window.event
+ // handle event
+ e.cancelBubble = true;
+ if (e.stopPropagation)
+ e.stopPropagation();
+
+ o.oldzidx = o.style.zIndex;
+ o.style.zIndex = 10;
+
+ var y = parseInt(o.vmode ? o.root.style.top : o.root.style.bottom);
+ var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );
+ o.root.onDragStart(x, y);
+
+ o.lastMouseX = e.clientX;
+ o.lastMouseY = e.clientY;
+
+ if (o.hmode) {
+ if (o.minX != null) o.minMouseX = e.clientX - x + o.minX;
+ if (o.maxX != null) o.maxMouseX = o.minMouseX + o.maxX - o.minX;
+ } else {
+ if (o.minX != null) o.maxMouseX = -o.minX + e.clientX + x;
+ if (o.maxX != null) o.minMouseX = -o.maxX + e.clientX + x;
+ }
+
+ if (o.vmode) {
+ if (o.minY != null) o.minMouseY = e.clientY - y + o.minY;
+ if (o.maxY != null) o.maxMouseY = o.minMouseY + o.maxY - o.minY;
+ } else {
+ if (o.minY != null) o.maxMouseY = -o.minY + e.clientY + y;
+ if (o.maxY != null) o.minMouseY = -o.maxY + e.clientY + y;
+ }
+
+ // console.log("assign");
+ document.onmousemove = xynt_dd.prototype.drag;
+ document.onmouseup = xynt_dd.prototype.end;
+
+ for(var i = 0 ; i < o.xynt_conn_ected.length ; i++) {
+ o.xynt_conn_ected[i].xynt_conn_update('start', o);
+ }
+
+ return false;
+ },
+
+ drag : function(e)
+ {
+ e = xynt_dd.prototype.fixE(e);
+ var o = xynt_dd.obj;
+
+ var ey = e.clientY;
+ var ex = e.clientX;
+ var y = parseInt(o.vmode ? o.root.style.top : o.root.style.bottom);
+ var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );
+ var nx, ny;
+
+ if (o.minX != null) ex = o.hmode ? Math.max(ex, o.minMouseX) : Math.min(ex, o.maxMouseX);
+ if (o.maxX != null) ex = o.hmode ? Math.min(ex, o.maxMouseX) : Math.max(ex, o.minMouseX);
+ if (o.minY != null) ey = o.vmode ? Math.max(ey, o.minMouseY) : Math.min(ey, o.maxMouseY);
+ if (o.maxY != null) ey = o.vmode ? Math.min(ey, o.maxMouseY) : Math.max(ey, o.minMouseY);
+
+ nx = x + ((ex - o.lastMouseX) * (o.hmode ? 1 : -1));
+ ny = y + ((ey - o.lastMouseY) * (o.vmode ? 1 : -1));
+
+ if (o.xMapper) nx = o.xMapper(y)
+ else if (o.yMapper) ny = o.yMapper(x)
+
+ xynt_dd.obj.root.style[o.hmode ? "left" : "right"] = nx + "px";
+ xynt_dd.obj.root.style[o.vmode ? "top" : "bottom"] = ny + "px";
+ xynt_dd.obj.lastMouseX = ex;
+ xynt_dd.obj.lastMouseY = ey;
+
+ xynt_dd.obj.root.onDrag(nx, ny);
+
+ console.log("pre call it"+o.xynt_conn_ected.length);
+ for(var i = 0 ; i < o.xynt_conn_ected.length ; i++) {
+ console.log("call it");
+ o.xynt_conn_ected[i].xynt_conn_update('drag', o);
+ }
+
+ return false;
+ },
+
+ end : function(e)
+ {
+ e = xynt_dd.prototype.fixE(e);
+ var o = xynt_dd.obj;
+
+ o.style.zIndex = o.oldzidx;
+ if (o.mouseup_cb != null) {
+ if (o.mouseup_cb(o) == 1) {
+ o.onmousedown = null;
+ }
+ }
+
+ document.onmousemove = null;
+ document.onmouseup = null;
+ xynt_dd.obj.root.onDragEnd( parseInt(xynt_dd.obj.root.style[xynt_dd.obj.hmode ? "left" : "right"]),
+ parseInt(xynt_dd.obj.root.style[xynt_dd.obj.vmode ? "top" : "bottom"]));
+ for(var i = 0 ; i < o.xynt_conn_ected.length ; i++) {
+ o.xynt_conn_ected[i].xynt_conn_update('end', o);
+ }
+
+ xynt_dd.obj = null;
+ },
+
+ fixE : function(e)
+ {
+ if (typeof e == 'undefined') e = window.event;
+ if (typeof e.layerX == 'undefined') e.layerX = e.offsetX;
+ if (typeof e.layerY == 'undefined') e.layerY = e.offsetY;
+ return e;
+ }
+};
+
+Extends(xynt_dd, xynt_connect);
\ No newline at end of file