--- /dev/null
+/*\r
+ * brisk - dom-drag.js\r
+ *\r
+ * Copyright (C) 2006-2008 Matteo Nastasi\r
+ * mailto: nastasi@alternativeoutput.it \r
+ * matteo.nastasi@milug.org\r
+ * web: http://www.alternativeoutput.it\r
+ *\r
+ * This program is free software; you can redistribute it and/or modify\r
+ * it under the terms of the GNU General Public License as published by\r
+ * the Free Software Foundation; either version 2 of the License, or\r
+ * (at your option) any later version.\r
+ *\r
+ * This program is distributed in the hope that it will be useful, but\r
+ * WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABLILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\r
+ * General Public License for more details. You should have received a\r
+ * copy of the GNU General Public License along with this program; if\r
+ * not, write to the Free Software Foundation, Inc, 59 Temple Place -\r
+ * Suite 330, Boston, MA 02111-1307, USA.\r
+ *\r
+ * $Id$\r
+ *\r
+ */\r
+\r
+/**************************************************\r
+ * dom-drag.js\r
+ * 09.25.2001\r
+ * www.youngpup.net\r
+ **************************************************\r
+ * 10.28.2001 - fixed minor bug where events\r
+ * sometimes fired off the handle, not the root.\r
+ **************************************************/\r
+\r
+var Drag = {\r
+\r
+ obj : null,\r
+\r
+ init : function(o, mouseup_cb, oRoot, minX, maxX, minY, maxY, bSwapHorzRef, bSwapVertRef, fXMapper, fYMapper)\r
+ {\r
+ o.onmousedown = Drag.start;\r
+ o.mouseup_cb = mouseup_cb;\r
+\r
+ /* alert("agnulla"+o.style.left); */\r
+\r
+ o.hmode = bSwapHorzRef ? false : true ;\r
+ o.vmode = bSwapVertRef ? false : true ;\r
+\r
+ o.root = oRoot && oRoot != null ? oRoot : o ;\r
+\r
+ if (o.hmode && isNaN(parseInt(o.root.style.left ))) {\r
+ var res = parseInt(getStyle(o, "left", "left"));\r
+ if (isNaN(res)) {\r
+ o.root.style.left = "0px";\r
+ }\r
+ else {\r
+ o.root.style.left = res;\r
+ }\r
+ }\r
+ if (o.vmode && isNaN(parseInt(o.root.style.top ))) {\r
+ var res = parseInt(getStyle(o, "top", "top"));\r
+ if (isNaN(res)) {\r
+ o.root.style.top = "0px";\r
+ }\r
+ else {\r
+ o.root.style.top = res;\r
+ }\r
+ }\r
+ if (!o.hmode && isNaN(parseInt(o.root.style.right ))) o.root.style.right = "0px";\r
+ if (!o.vmode && isNaN(parseInt(o.root.style.bottom))) o.root.style.bottom = "0px";\r
+\r
+ o.minX = typeof minX != 'undefined' ? minX : null;\r
+ o.minY = typeof minY != 'undefined' ? minY : null;\r
+ o.maxX = typeof maxX != 'undefined' ? maxX : null;\r
+ o.maxY = typeof maxY != 'undefined' ? maxY : null;\r
+\r
+ o.xMapper = fXMapper ? fXMapper : null;\r
+ o.yMapper = fYMapper ? fYMapper : null;\r
+\r
+ o.root.onDragStart = new Function();\r
+ o.root.onDragEnd = new Function();\r
+ o.root.onDrag = new Function();\r
+ },\r
+\r
+ start : function(e)\r
+ {\r
+ var o = Drag.obj = this;\r
+ e = Drag.fixE(e);\r
+\r
+ o.oldzidx = o.style.zIndex;\r
+ o.style.zIndex = 10;\r
+\r
+ // alert("start");\r
+\r
+ var y = parseInt(o.vmode ? o.root.style.top : o.root.style.bottom);\r
+ var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );\r
+ o.root.onDragStart(x, y);\r
+\r
+ o.lastMouseX = e.clientX;\r
+ o.lastMouseY = e.clientY;\r
+\r
+ if (o.hmode) {\r
+ if (o.minX != null) o.minMouseX = e.clientX - x + o.minX;\r
+ if (o.maxX != null) o.maxMouseX = o.minMouseX + o.maxX - o.minX;\r
+ } else {\r
+ if (o.minX != null) o.maxMouseX = -o.minX + e.clientX + x;\r
+ if (o.maxX != null) o.minMouseX = -o.maxX + e.clientX + x;\r
+ }\r
+\r
+ if (o.vmode) {\r
+ if (o.minY != null) o.minMouseY = e.clientY - y + o.minY;\r
+ if (o.maxY != null) o.maxMouseY = o.minMouseY + o.maxY - o.minY;\r
+ } else {\r
+ if (o.minY != null) o.maxMouseY = -o.minY + e.clientY + y;\r
+ if (o.maxY != null) o.minMouseY = -o.maxY + e.clientY + y;\r
+ }\r
+\r
+ document.onmousemove = Drag.drag;\r
+ document.onmouseup = Drag.end;\r
+\r
+ return false;\r
+ },\r
+\r
+ drag : function(e)\r
+ {\r
+ e = Drag.fixE(e);\r
+ var o = Drag.obj;\r
+\r
+ var ey = e.clientY;\r
+ var ex = e.clientX;\r
+ var y = parseInt(o.vmode ? o.root.style.top : o.root.style.bottom);\r
+ var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );\r
+ var nx, ny;\r
+\r
+ if (o.minX != null) ex = o.hmode ? Math.max(ex, o.minMouseX) : Math.min(ex, o.maxMouseX);\r
+ if (o.maxX != null) ex = o.hmode ? Math.min(ex, o.maxMouseX) : Math.max(ex, o.minMouseX);\r
+ if (o.minY != null) ey = o.vmode ? Math.max(ey, o.minMouseY) : Math.min(ey, o.maxMouseY);\r
+ if (o.maxY != null) ey = o.vmode ? Math.min(ey, o.maxMouseY) : Math.max(ey, o.minMouseY);\r
+\r
+ nx = x + ((ex - o.lastMouseX) * (o.hmode ? 1 : -1));\r
+ ny = y + ((ey - o.lastMouseY) * (o.vmode ? 1 : -1));\r
+\r
+ if (o.xMapper) nx = o.xMapper(y)\r
+ else if (o.yMapper) ny = o.yMapper(x)\r
+\r
+ Drag.obj.root.style[o.hmode ? "left" : "right"] = nx + "px";\r
+ Drag.obj.root.style[o.vmode ? "top" : "bottom"] = ny + "px";\r
+ Drag.obj.lastMouseX = ex;\r
+ Drag.obj.lastMouseY = ey;\r
+\r
+ Drag.obj.root.onDrag(nx, ny);\r
+ return false;\r
+ },\r
+\r
+ end : function(e)\r
+ {\r
+ e = Drag.fixE(e);\r
+ var o = Drag.obj;\r
+\r
+ o.style.zIndex = o.oldzidx;\r
+ // alert("END");\r
+ if (o.mouseup_cb != null) {\r
+ if (o.mouseup_cb(o) == 1) {\r
+ o.onmousedown = null;\r
+ }\r
+ }\r
+\r
+ document.onmousemove = null;\r
+ document.onmouseup = null;\r
+ Drag.obj.root.onDragEnd( parseInt(Drag.obj.root.style[Drag.obj.hmode ? "left" : "right"]), \r
+ parseInt(Drag.obj.root.style[Drag.obj.vmode ? "top" : "bottom"]));\r
+ Drag.obj = null;\r
+ },\r
+\r
+ fixE : function(e)\r
+ {\r
+ if (typeof e == 'undefined') e = window.event;\r
+ if (typeof e.layerX == 'undefined') e.layerX = e.offsetX;\r
+ if (typeof e.layerY == 'undefined') e.layerY = e.offsetY;\r
+ return e;\r
+ }\r
+};\r
projects / brisk.git / blobdiff