web/data/cubicweb.calendar.js
changeset 0 b97547f5f1fa
child 1419 7ff24154351d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/data/cubicweb.calendar.js	Wed Nov 05 15:52:50 2008 +0100
@@ -0,0 +1,320 @@
+/*
+ *  This file contains Calendar utilities
+ *  :organization: Logilab
+ *  :copyright: 2003-2008 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+ *  :contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
+ */
+
+CubicWeb.require('python.js');
+CubicWeb.require('ajax.js');
+
+// IMPORTANT NOTE: the variables DAYNAMES AND MONTHNAMES will be added
+//                 by cubicweb automatically
+
+// dynamically computed (and cached)
+var _CAL_HEADER = null;
+
+TODAY = new Date();
+
+
+/*
+ * Calendar (graphical) widget
+ * public methods are :
+ *   __init__ :
+ *    @param containerId: the DOM node's ID where the calendar will be displayed
+ *    @param inputId: which input needs to be updated when a date is selected
+ *    @param year, @param month: year and month to be displayed
+ *    @param cssclass: CSS class of the calendar widget (default is commandCal)
+ *
+ *   show() / hide():
+ *    show or hide the calendar widget
+ *
+ *   toggle():
+ *    show (resp. hide) the calendar if it's hidden (resp. displayed)
+ * 
+ *   displayNextMonth(): (resp. displayPreviousMonth())
+ *    update the calendar to display next (resp. previous) month
+ */
+Calendar = function(containerId, inputId, year, month, cssclass) {
+    this.containerId = containerId;
+    this.inputId = inputId;
+    this.year = year;
+    this.month = month-1; // Javascript's counter starts at 0 for january
+    this.cssclass = cssclass || "popupCalendar";
+    this.visible = false;
+    this.domtable = null;
+
+    this.cellprops = { 'onclick'     : function() {dateSelected(this, containerId); },
+		       'onmouseover' : function() {this.style.fontWeight = 'bold'; },
+		       'onmouseout'  : function() {this.style.fontWeight = 'normal';}
+		     }
+
+    this.todayprops = jQuery.extend({}, this.cellprops, {'class' : 'today'});
+
+    this._rowdisplay = function(row) {
+	return TR(null, map(partial(TD, this.cellprops), row));
+    }
+
+    this._makecell = function(cellinfo) {
+	return TD(cellinfo[0], cellinfo[1]);
+    }
+
+    /* utility function (the only use for now is inside the calendar) */
+    this._uppercaseFirst = function(s) { return s.charAt(0).toUpperCase(); }
+    
+    /* accepts the cells data and builds the corresponding TR nodes
+     * @param rows a list of list of couples (daynum, cssprops)
+     */
+    this._domForRows = function(rows) {
+	var lines = []
+	for (i=0; i<rows.length; i++) {
+	    lines.push(TR(null, map(this._makecell, rows[i])));
+	}
+	return lines;
+    }
+
+    /* builds the calendar headers */
+    this._headdisplay = function(row) {
+	if (_CAL_HEADER) {
+	    return _CAL_HEADER;
+	}
+	daynames = map(this._uppercaseFirst, DAYNAMES);
+	_CAL_HEADER = TR(null, map(partial(TH, null), daynames));
+	return _CAL_HEADER;
+    }
+    
+    this._getrows = function() {
+	var rows = [];
+	var firstday = new Date(this.year, this.month, 1);
+	var stopdate = firstday.nextMonth();
+	var curdate = firstday.sub(firstday.getRealDay());
+	while (curdate.getTime() < stopdate) {
+	    var row = []
+	    for (var i=0; i<7; i++) {
+		if (curdate.getMonth() == this.month) {
+		    props = curdate.equals(TODAY) ? this.todayprops:this.cellprops;
+		    row.push([props, curdate.getDate()]);
+		} else {
+		    row.push([this.cellprops, ""]);
+		}
+		curdate.iadd(1);
+	    }
+	    rows.push(row);
+	}
+	return rows;
+    }
+
+    this._makecal = function() {
+	var rows = this._getrows();
+	var monthname = MONTHNAMES[this.month] + " " + this.year;
+	var prevlink = "javascript: togglePreviousMonth('" + this.containerId + "');";
+	var nextlink = "javascript: toggleNextMonth('" + this.containerId + "');";
+	this.domtable = TABLE({'class': this.cssclass},
+			      THEAD(null, TR(null,
+					     TH(null, A({'href' : prevlink}, "<<")),
+					     TH({'colspan' : 5, 'style' : "text-align: center;"}, monthname),
+					     TH(null, A({'href' : nextlink}, ">>")))),
+			      TBODY(null,
+				    this._headdisplay(),
+				    this._domForRows(rows))
+			     );
+	return this.domtable;
+    }
+
+    this._updateDiv = function() {
+	if (!this.domtable) {
+	    this._makecal();
+	}
+	jqNode(this.containerId).empty().append(this.domtable);
+	// replaceChildNodes($(this.containerId), this.domtable);
+    }
+
+    this.displayNextMonth = function() {
+	this.domtable = null;
+	if (this.month == 11) {
+	    this.year++;
+	}
+	this.month = (this.month+1) % 12;
+	this._updateDiv();
+    }
+
+    this.displayPreviousMonth = function() {
+	this.domtable = null;
+	if (this.month == 0) {
+	    this.year--;
+	}
+	this.month = (this.month+11) % 12;
+	this._updateDiv();
+    }
+    
+    this.show = function() {
+	if (!this.visible) {
+	    container = jqNode(this.containerId);
+	    if (!this.domtable) {
+		this._makecal();
+	    }
+	    container.empty().append(this.domtable);
+	    toggleVisibility(container);
+	    this.visible = true;
+	}
+    }
+
+    this.hide = function(event) {
+	var self;
+	if (event) {
+	    self = event.data.self;
+	} else {
+	    self = this;
+	}
+	if (self.visible) {
+	    toggleVisibility(self.containerId);
+	    self.visible = false;
+	}
+    }
+
+    this.toggle = function() {
+	if (this.visible) {
+	    this.hide();
+	}
+	else {
+	    this.show();
+	}
+    }
+
+    // call hide() when the user explicitly sets the focus on the matching input
+    jqNode(inputId).bind('focus', {'self': this}, this.hide); // connect(inputId, 'onfocus', this, 'hide');
+};
+
+// keep track of each calendar created
+Calendar.REGISTRY = {};
+
+/*
+ * popup / hide calendar associated to `containerId`
+ */	    
+function toggleCalendar(containerId, inputId, year, month) {
+    var cal = Calendar.REGISTRY[containerId];
+    if (!cal) {
+	cal = new Calendar(containerId, inputId, year, month);
+	Calendar.REGISTRY[containerId] = cal;
+    }
+    /* hide other calendars */
+    for (containerId in Calendar.REGISTRY) {
+	var othercal = Calendar.REGISTRY[containerId];
+	if (othercal !== cal) {
+	    othercal.hide();
+	}
+    }
+    cal.toggle();
+}
+
+
+/*
+ * ask for next month to calendar displayed in `containerId`
+ */
+function toggleNextMonth(containerId) {
+    var cal = Calendar.REGISTRY[containerId];
+    cal.displayNextMonth();
+}
+
+/*
+ * ask for previous month to calendar displayed in `containerId`
+ */
+function togglePreviousMonth(containerId) {
+    var cal = Calendar.REGISTRY[containerId];
+    cal.displayPreviousMonth();
+}
+
+
+/*
+ * Callback called when the user clicked on a cell in the popup calendar
+ */
+function dateSelected(cell, containerId) {
+    var cal = Calendar.REGISTRY[containerId];
+    var input = getNode(cal.inputId);
+    // XXX: the use of innerHTML might cause problems, but it seems to be
+    //      the only way understood by both IE and Mozilla. Otherwise,
+    //      IE accepts innerText and mozilla accepts textContent
+    var selectedDate = new Date(cal.year, cal.month, cell.innerHTML, 12);
+    var xxx = remote_exec("format_date", toISOTimestamp(selectedDate));
+    input.value = xxx;
+    cal.hide();
+}
+
+function whichElement(e)
+{
+var targ;
+if (!e)
+  {
+  var e=window.event;
+  }
+if (e.target)
+  {
+  targ=e.target;
+  }
+else if (e.srcElement)
+  {
+  targ=e.srcElement;
+  }
+if (targ.nodeType==3) // defeat Safari bug
+  {
+  targ = targ.parentNode;
+  }
+  return targ;
+}
+
+function getPosition(element) {
+  var left;
+  var top;
+  var offset;
+  // TODO: deal scrollbar positions also!
+  left = element.offsetLeft;
+  top = element.offsetTop;
+
+  if (element.offsetParent != null)
+    {
+      offset = getPosition(element.offsetParent);
+      left = left + offset[0];
+      top = top + offset[1];
+      
+    }
+  return [left, top];
+}
+
+function getMouseInBlock(event) {
+  var elt = event.target;
+  var x = event.clientX;
+  var y = event.clientY;
+  var w = elt.clientWidth;
+  var h = elt.clientHeight;
+  var offset = getPosition(elt);
+
+  x = 1.0*(x-offset[0])/w;
+  y = 1.0*(y-offset[1])/h;
+  return [x, y];
+}
+function getHourFromMouse(event, hmin, hmax) {
+  var pos = getMouseInBlock(event);
+  var y = pos[1];
+  return Math.floor((hmax-hmin)*y + hmin);
+}
+
+function addCalendarItem(event, hmin, hmax, year, month, day, duration, baseurl) {
+  var hour = getHourFromMouse(event, hmin, hmax);
+
+  if (0<=hour && hour < 24) {
+    baseurl += "&start="+year+"%2F"+month+"%2F"+day+"%20"+hour+":00";
+    baseurl += "&stop="+year+"%2F"+month+"%2F"+day+"%20"+(hour+duration)+":00";
+    
+    stopPropagation(event);
+    window.location.assign(baseurl);
+    return false;
+  }
+  return true;
+}
+
+function stopPropagation(event) {
+  event.cancelBubble = true;
+  if (event.stopPropagation) event.stopPropagation();  
+}
+     
+CubicWeb.provide('calendar.js');