X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=plugins%2Fscheduler%2Fstatic%2Fjs%2Fscheduler.js;fp=plugins%2Fscheduler%2Fstatic%2Fjs%2Fscheduler.js;h=709380f131f2c851e346c365248d7877362fc55c;hb=6e13c225bb6e91885b5eb4cb668d59d0ed707830;hp=0000000000000000000000000000000000000000;hpb=d1197c134b70bda643a752bdaf891190cb5a15e7;p=myslice.git

diff --git a/plugins/scheduler/static/js/scheduler.js b/plugins/scheduler/static/js/scheduler.js
new file mode 100644
index 00000000..709380f1
--- /dev/null
+++ b/plugins/scheduler/static/js/scheduler.js
@@ -0,0 +1,648 @@
+/**
+ * Description: display a query result in a Google map
+ * Copyright (c) 2012-2013 UPMC Sorbonne Universite - INRIA
+ * License: GPLv3
+ */
+
+/* based on the leases.js code in PLE WWW interface for MyPLC by Thierry Parmentelat -- INRIA */
+
+/* XXX Those declarations should not be part of the js file... */
+
+/* decorations / headers */
+/* note: looks like the 'font' attr is not effective... */
+
+// vertical rules
+var attr_rules={'fill':"#888", 'stroke-dasharray':'- ', 'stroke-width':0.5};
+// set font-size separately in here rather than depend on the height
+var txt_timelabel = {"font": 'Times, "Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', 
+             stroke: "none", fill: "#008", 'font-size': 9};
+var txt_allnodes = {"font": '"Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', stroke: "none", fill: "#404"};
+var txt_nodelabel = {"font": '"Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', stroke: "none", fill: "#008"};
+
+var attr_timebutton = {'fill':'#bbf', 'stroke': '#338','stroke-width':1, 
+               'stroke-linecap':'round', 'stroke-linejoin':'miter', 'stroke-miterlimit':3};
+var attr_daymarker = {'stroke':'#000','stroke-width':2};
+var attr_half_daymarker = {'stroke':'#444','stroke-width':2};
+
+/* lease dimensions and colors */
+/* refrain from using gradient color, seems to not be animated properly */
+/* lease was originally free and is still free */
+var attr_lease_free_free={'fill':"#def", 'stroke-width':0.5, 'stroke-dasharray':''};
+/* lease was originally free and is now set for our usage */
+var attr_lease_free_mine={'fill':"green", 'stroke-width':1, 'stroke-dasharray':'-..'};
+/* was mine and is still mine */
+var attr_lease_mine_mine={'fill':"#beb", 'stroke-width':0.5, 'stroke-dasharray':''};
+/* was mine and is about to be released */
+var attr_lease_mine_free={'fill':"white", 'stroke-width':1, 'stroke-dasharray':'-..'};
+var attr_lease_other={'fill':"#f88"};
+
+/* other slices name */
+var txt_otherslice = {"font": '"Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', stroke: "none", fill: "#444", "font-size": "12px"};
+
+(function($){
+
+    var Scheduler = Plugin.extend({
+
+        init: function(options, element) 
+        {
+            this._super(options, element);
+
+                /* Member variables */
+            this.options = options;
+            this.canvas_id = 'leases_area-' + options.plugin_uuid;
+
+            this.query_uuid = options.query_uuid;
+            this.rows = null;
+            // XXX TODEL
+            //this.current_resources = Array();
+            //this.current_leases = Array();
+
+            this.myLeases = Array();
+            this.allLeases = Array();
+
+            this.listLeases = Array();
+
+            this.axisx = Array();
+            this.axisy = Array();
+            this.data = Array();
+            this.default_granularity = 1800; /* 30 min */
+            this.initial_timestamp = null;
+
+            /* This should be updated to be the ppcm of all granularities */
+            this.min_granularity = this.default_granularity;
+
+            // the data contains slice names, and lease_id, we need this to find our own leases (mine)
+            this.paper=null;
+
+            /* XXX Events */
+
+            /* XXX Keys */
+
+            /* Listening to queries */
+            this.listen_query(options.resource_query_uuid);
+            this.listen_query(options.lease_query_uuid);
+
+            /* XXX GUI setup and event binding */
+            jQuery("#datepicker").datetimepicker({
+                //Timezone wise selection option
+                //timeFormat: 'hh:mm tt z',
+                //showTimezone: true,
+                
+                onSelect: function(value) { 
+                    //console.log(value);
+                    //converting time to timestamp
+                    currentDate= Math.round(Date.parse(value)/ 1000);
+                    // TODO -- DONE
+                    // convert value to timestamp --done
+                    // Get jQuery("#timepicker").val(); - no need anymore
+                    // convert timepicker into seconds - no need
+                    // Add time to date - done
+                    // pass the result to init_axisx - done
+                    //console.log(currentDate);
+                    s.clear();
+                    s.init_axisx(currentDate);
+                    s.draw();
+                    // Do we need to populate the timeslots with existing leases? 
+                    // Look how to populate with initial_leases [we have to show the leases]
+                    
+                } 
+            });
+            //console.log(s.nodelabels[1]);
+            // Do we need to populate the timeslots with existing leases? 
+            // Look how to populate with initial_leases
+            
+            // TODO -- DONE  Note: autocomplete is not search box
+            // Implement a filtering functionality, on the name of the node
+            // http://jqueryui.com/autocomplete/
+            // pass s.nodelabels to autocomplete function
+            //jQuery("#search").autocomplete('s.nodelabel');
+            //console.log(s.nodelabel);
+            
+            /*
+             * TODO
+             * During init, there are no resources
+             * So the list of nodes is empty
+             * The function triggered by the subscription to the resources query
+             * var RESULTS_RESOURCES = '/results/' + options.resource_query_uuid + '/changed';
+             * $.subscribe(RESULTS_RESOURCES, function(e, resources) { s.set_resources(resources);   });
+             * Will have to update the list of nodes available through autocomplete (availableTags)
+             * 
+             * Be inspired by QueryEditor plugin
+             * 
+             * Resources informations in s.axisy ???
+             * 
+             * Filter what has been selected in other plugins:
+             * QueryEditor
+             * QuickFilter
+             * AdvancedFilter
+             * 
+             * Implement an action of filtering while typing
+             * filter what correspond to the user choice
+             * 
+             */
+            $(function() {
+                var availableTags = ['omf','nitos','ple', s.nodelabel];
+            $( "#search" ).autocomplete({
+              source: availableTags
+                });
+            });
+
+            this.init_axisx('');
+            this.draw();
+
+        }, /* init */
+
+        /* Default settings */
+        default_options: {
+            leases_offset:       0,
+            leases_slots:        36,
+            leases_w:            180,
+            leases_granularity:  3600,
+
+            x_nodelabel:         200,   /* space for the nodenames */
+            x_sep:               20,    /* right space after the nodename - removed from the above */
+            y_header:            12,    /* height for the (two) rows of timelabels */
+            y_sep:               10,    /* space between nodes */
+            leases_w:            20,    /* 1-grain leases attributes */
+            y_node:              15,
+            radius:              6,
+            anim_delay:          350,
+            checkboxes:          false,
+            resource_query_uuid: null,  /* resources */
+            lease_query_uuid:    null,  /* leases */
+        },
+
+        /* PLUGIN EVENTS */
+
+        /* GUI EVENTS */
+
+        /* GUI MANIPULATION */
+
+        /* TEMPLATES */
+
+        /* QUERY HANDLERS */
+
+        set_resources: function(resources) 
+        {
+            //console.log(resources);
+            var scheduler = this;
+            jQuery.each(resources, function(i, resource) {
+                // ... add reservable ones to the x axis
+                if ((typeof resource.exclusive != 'undefined') && (resource.exclusive)) {
+                    scheduler.axisy.push(Array(resource.urn, resource.resource_hrn, resource.type));
+                }
+                // ... if we do not have information about slivers (first update), update it
+                if (typeof resource.sliver != 'undefined') {
+                    // XXX
+                }
+            });
+
+            this.draw(this.canvas_id);
+        }
+
+        this.set_leases = function(leases) {
+            this.initial_leases=leases;
+            this.draw(this.canvas_id);
+        }
+
+        this.update_resources = function(resources) {
+            //
+        }
+
+        this.update_leases = function(leases) {
+            //
+        }
+
+        /* RECORD HANDLERS */
+
+        /* INTERNAL FUNCTIONS */
+
+        /**
+         * @brief Return the number of time slots
+         */
+        nb_grains: function () 
+        {
+            return this.axisx.length; 
+        },
+
+        /**
+         * @brief Returns whether there is a pending lease at this timestamp
+         */
+        find_lease: function(urn, timestamp)
+        {
+            var scheduler = this;
+            var result = null;
+
+            $.each(Array(scheduler.myLeases, scheduler.allLeases), function(i, array) {
+                $.each(array, function(i, lease) {
+                    if (lease[0] == urn) {
+                        if ((timestamp >= lease[1]) && (timestamp < (lease[1] + lease[2] * 1800))) {
+                            result = lease;
+                            
+                            return false;
+                        }
+                    }
+                });
+                if (result)
+                    return false;
+            });
+            return result;
+        },
+
+        /**
+         * @brief Draw
+         */
+        draw: function() 
+        { 
+            var canvas_id = this.canvas_id;
+            var o = this.options;
+            var total_width = o.x_nodelabel + this.nb_grains() * this.options.leases_w;
+            var total_height = 2 * o.y_header /* the timelabels */
+                             + 2 * o.y_sep    /* extra space */
+                             + o.y_node	  /* all-nodes & timebuttons row */ 
+                             + (this.axisy.length)*(o.y_node+o.y_sep);  /* the regular nodes and preceding space */
+
+            /* reuse for paper if exists with same size, or (re-)create otherwise */
+            var paper;
+            if (this.paper == null) {
+                paper = Raphael (canvas_id, total_width+o.x_sep, total_height);
+            } else if (this.paper.width==total_width && this.paper.height==total_height) {
+                paper=this.paper;
+                paper.clear();
+            } else {
+                $$("#"+canvas_id)[0].innerHTML="";
+                paper = Raphael (canvas_id, total_width+o.x_sep, total_height);
+            }
+            this.paper=paper;
+
+            /* the path for the triangle-shaped buttons */
+            this.timebutton_path = "M1,0L"+(this.options.leases_w-1)+",0L"+(this.options.leases_w/2)+","+o.y_header+"L1,0";
+
+            var axisx = this.axisx;
+            var axisy = this.axisy;
+
+            /* maintain the list of nodelabels for the 'all nodes' button */
+            this.nodelabels=[];
+            
+
+            /* create the time slots legend */
+            var top = 0;
+            var left = o.x_nodelabel;
+
+            var daymarker_height= 2*o.y_header + 2*o.y_sep + (axisy.length+1)*(o.y_node+o.y_sep);
+            var daymarker_path="M0,0L0," + daymarker_height;
+
+            var half_daymarker_off= 2*o.y_header + o.y_sep;
+            var half_daymarker_path="M0," + half_daymarker_off + "L0," + daymarker_height;
+
+            var col=0;
+            for (var i=0, len=axisx.length; i < len; ++i) {
+                /* pick the printable part */
+                var timelabel=axisx[i][1];
+                var y = top + o.y_header;
+                if (col%2 == 0) y += o.y_header;
+                col +=1;
+                /* display time label */
+                var timelabel=paper.text(left,y,timelabel).attr(txt_timelabel).attr({"text-anchor":"middle"});
+                /* draw vertical line */
+                var path_spec="M"+left+" "+(y+o.y_header/2)+"L"+left+" "+this.total_height;
+                var rule=paper.path(path_spec).attr(attr_rules);
+                /* show a day marker when relevant */
+                var timestamp=parseInt(axisx[i][0]);
+                if ( (timestamp%(24*3600))==0) {
+                    paper.path(daymarker_path).attr({'translation':left+','+top}).attr(attr_daymarker);
+                } else if ( (timestamp%(12*3600))==0) {
+                    paper.path(half_daymarker_path).attr({'translation':left+','+top}).attr(attr_daymarker);
+                }
+                left += this.options.leases_w;
+            },
+
+            ////////// the row with the timeslot buttons (the one labeled 'All nodes')
+            this.granularity= this.min_granularity; // XXX axisx[1][0]-axisx[0][0];
+
+            // move two lines down
+            top += 2*o.y_header + 2*o.y_sep;
+            left=o.x_nodelabel;
+            // all nodes buttons
+            var allnodes = paper.text (o.x_nodelabel-o.x_sep,top+o.y_node/2,"All nodes").attr(txt_allnodes)
+                .attr ({"font-size":o.y_node, "text-anchor":"end","baseline":"bottom"});
+            allnodes.scheduler=this;
+            allnodes.click(allnodes_methods.click);
+            
+            // timeslot buttons [it's the triangles above the slots]
+            for (var i=0, len=axisx.length; i < len; ++i) {
+                var timebutton=paper.path(this.timebutton_path).attr({'translation':left+','+top}).attr(attr_timebutton);
+                timebutton.from_time=axisx[i][0];
+                timebutton.scheduler=this;
+                timebutton.click(timebutton_methods.click);
+                left+=(this.options.leases_w);
+            }
+            
+            //////// the body of the scheduler : loop on nodes
+            top += o.y_node + o.y_sep;
+            var data_index=0;
+            this.leases=[];
+            for (var i=0, len=axisy.length; i<len; ++i) {
+                var urn=axisy[i][0];
+                var nodename=axisy[i][1];
+                var type=axisy[i][2];
+                left=0;            
+                /*
+                 *  MODIFIED font-size
+                var nodelabel = paper.text(o.x_nodelabel-x_sep,top+y_node/2,nodename).attr(txt_nodelabel)
+                .attr ({"font-size":y_node, "text-anchor":"end","baseline":"bottom"});
+                */
+                var nodelabel = paper.text(o.x_nodelabel-o.x_sep,top+o.y_node/3,nodename).attr(txt_nodelabel)
+                .attr ({"font-size":"12px", "text-anchor":"end","baseline":"bottom"});    
+                //console.log(nodelabel);
+                nodelabel_methods.selected(nodelabel,1);
+                //nodelabel_methods.selected( this, ! this.selected );
+                nodelabel.click(nodelabel_methods.click); //click action works here
+                //timebutton.click(timebutton_methods.click);
+                
+               // lease_methods.init_free(nodelabel.click, lease_methods.click_mine);
+               //lease_methods.init_free(nodelabel.lease);
+                this.nodelabels.push(nodelabel);
+                
+                left += o.x_nodelabel;
+                var grain=0;
+                // data index contains the full array of leases
+                // not the same amount of grains per node
+
+                // NOTE: remembering the previous lease might help for long leases.
+                while (grain < this.nb_grains()) {
+
+                    if (l = this.find_lease(urn, this.initial_timestamp + grain * 1800)) {
+                        slicename = l.slice_id;
+                    } else {
+                        slicename = "";
+                    }
+
+                    //lease_id  = this.data[data_index][0];
+                    //slicename = this.data[data_index][1];
+                    /* Duration should not be the lease duration, but the grain */
+                    var duration = 1; // this.data[data_index][2];
+
+                    var lease=paper.rect (left,top,this.options.leases_w*duration,o.y_node,o.radius);
+                    // record scheduler in lease - early as we need this in init_other
+                    lease.scheduler=this;
+                    //lease.lease_id=lease_id;
+                    lease.nodename=nodename;
+                    lease.urn=urn;
+                    lease.nodelabel=nodelabel;
+                    if (slicename == "") {
+                        lease.initial="free";
+                        lease_methods.init_free(lease);
+                    } else if (slicename == this.options.slicename) {
+                        lease.initial="mine";
+                        lease_methods.init_mine(lease);
+                    } else {
+                        lease.initial="other";
+                        lease_methods.init_other(lease,slicename);
+                    }
+                    lease.from_time = axisx[grain%this.nb_grains()][0];
+                    grain += duration;
+                    lease.until_time = axisx[grain%this.nb_grains()][0];
+                    // and vice versa
+                    this.leases.push(lease);
+                    // move on with the loop
+                    left += this.options.leases_w*duration;
+                    data_index +=1;
+                }
+                top += o.y_node + o.y_sep;
+            };
+        }, /* draw */
+
+        init_axisx: function(currentDate) 
+        {
+            this.axisx = Array();
+    
+            if(currentDate=="") {
+                // creating timestamp of the current time
+                currentDate = new Date().getTime() / 1000;
+            }
+            this.initial_timestamp = currentDate;
+            //console.log(currentDate);
+    
+            // round it by granularity (becomes an Int)
+            var rounded = Math.round(currentDate/this.min_granularity)*this.min_granularity;
+            // Convert Int to Date
+            rounded = new Date(rounded*1000);
+            // get hours and minutes in a 24h format 00:00
+            var roundedHours=(rounded.getHours()<10?'0':'') + rounded.getHours();
+            var roundedMinutes=(rounded.getMinutes()<10?'0':'') + rounded.getMinutes();
+    
+            //timeFrame.push(rounded);
+            this.axisx.push(Array(rounded, roundedHours+":"+roundedMinutes));
+    
+            // Generate as man slots as we need
+            for(i=0; i<this.options.leases_slots;i++) {
+                rounded = this.min_granularity+(rounded.getTime()/1000);
+                rounded = new Date(rounded*1000);
+                roundedHours=(rounded.getHours()<10?'0':'') + rounded.getHours();
+                roundedMinutes=(rounded.getMinutes()<10?'0':'') + rounded.getMinutes();
+    
+                //timeFrame.push(rounded);
+                this.axisx.push(Array(rounded, roundedHours+":"+roundedMinutes));
+            }
+        },
+
+        clear: function ()
+        {
+            for (var i=0, len=this.leases.length; i<len; ++i) {
+                var lease=this.leases[i];
+                if (lease.current != lease.initial) {
+                if (lease.initial == 'free') lease_methods.init_free(lease,lease_methods.click_mine);
+                else			     lease_methods.init_mine(lease,lease_methods.click_free);
+                }
+            }
+        },
+
+        // XXX Couldn't find how to inhererit from the raphael objects...
+
+        /* ---------------------------------------------------------------------
+         * The 'all nodes' button
+         */
+        allnodes_methods: {
+            click: function (event) {
+                var scheduler=this.scheduler;
+                /* decide what to do */
+                var unselected=0;
+                for (var i=0, len=scheduler.nodelabels.length; i<len; ++i) 
+                    if (! scheduler.nodelabels[i].selected) unselected++;
+                /* if at least one is not selected : select all */
+                var new_state = (unselected >0) ? 1 : 0;
+                for (var i=0, len=scheduler.nodelabels.length; i<len; ++i) 
+                    nodelabel_methods.selected(scheduler.nodelabels[i],new_state);
+            }
+        },
+
+        /* ---------------------------------------------------------------------
+         * The buttons for managing the whole timeslot
+         */
+        timebutton_methods: {
+
+            /* clicking */
+            click: function (event) {
+                var scheduler = this.scheduler;
+                var from_time = this.from_time;
+                var until_time = from_time + scheduler.granularity;
+                /* scan leases on selected nodes, store in two arrays */
+                var relevant_free=[], relevant_mine=[];
+                for (var i=0,len=scheduler.leases.length; i<len; ++i) {
+                    var scan=scheduler.leases[i];
+                    if ( ! scan.nodelabel.selected) continue;
+                    // overlap ?
+                    if (scan.from_time<=from_time && scan.until_time>=until_time) {
+                    if (scan.current == "free")       relevant_free.push(scan);
+                    else if (scan.current == "mine")  relevant_mine.push(scan);
+                    }
+                }
+                // window.console.log("Found " + relevant_free.length + " free and " + relevant_mine.length + " mine");
+                /* decide what to do, whether book or release */
+                if (relevant_mine.length==0 && relevant_free.length==0) {
+                    alert ("Nothing to do in this timeslot on the selected nodes");
+                    return;
+                }
+                // if at least one is free, let's book
+                if (relevant_free.length > 0) {
+                    for (var i=0, len=relevant_free.length; i<len; ++i) {
+                        var lease=relevant_free[i];
+                        lease_methods.init_mine(lease,lease_methods.click_free);
+                    }
+                // otherwise we unselect
+                } else {
+                    for (var i=0, len=relevant_mine.length; i<len; ++i) {
+                        var lease=relevant_mine[i];
+                        lease_methods.init_free(lease,lease_methods.click_mine);
+                    }
+                }
+            } /* click */
+        }, 
+
+        /* ---------------------------------------------------------------------
+         * The nodelabel buttons
+         */
+        nodelabel_methods: {
+            
+            // set selected mode and render visually
+            selected: function (nodelabel, flag) {
+                nodelabel.selected=flag;
+                nodelabel.attr({'font-weight': (flag ? 'bold' : 'normal')});
+                // TODO
+                // 
+                // loop on axis x and select each timebutton
+                // for (var i=0, len=axisx.length; i < len; ++i)
+                // figure out how to use timebutton_methods.click();
+                    
+            },
+
+            // toggle selected
+            click: function (event) {
+                nodelabel_methods.selected( this, ! this.selected );
+            }
+        },
+
+
+        /* ---------------------------------------------------------------------
+         * The lease buttons
+         */
+        lease_methods: {
+        
+            init_free: function (lease, unclick) {
+                var o = lease.scheduler.options;
+                lease.current="free";
+                // set color
+                lease.animate((lease.initial=="free") ? attr_lease_free_free : attr_lease_mine_free, o.anim_delay);
+                // keep track of the current status
+                // record action
+                lease.click (lease_methods.click_free);
+                if (unclick) lease.unclick(unclick);
+            },
+                     
+            // find out all the currently free leases that overlap this one
+            click_free: function (event) {
+                var scheduler = this.scheduler;
+                lease_methods.init_mine(this,lease_methods.click_free);        
+                //publish
+                //this.from_time
+                //this.urn
+                //this.until_time
+                var urn = this.urn
+                var start_time=new Date(this.from_time).getTime() / 1000;        
+                var end_time=new Date(this.until_time).getTime() / 1000;
+                var duration=(end_time-start_time)/1800; // XXX HARDCODED LEASE GRAIN
+
+                /* Add a new lease : XXX should be replaced by a dictionary */
+                // Do we have a lease with the same urn  just before or just after ?
+                var removeIdBefore = null;
+                var removeIdAfter = null;
+                jQuery.each(scheduler.listLeases, function(i, lease) {
+                    if (lease[0] == urn) {
+                        if (lease[1] + lease[2] * 1800 == start_time) { // XXX HARDCODED LEASE GRAIN
+                            // Merge with previous lease
+                            removeIdBefore = i;
+                            start_time = lease[1];
+                            duration += lease[2];
+                        }
+                        if (lease[1] == end_time) {
+                            // Merge with following lease
+                            removeIdAfter = i;
+                            duration += lease[2];
+                        }
+                    }
+                });
+                if (removeIdBefore != null) {
+                    scheduler.listLeases.splice(removeIdBefore , 1);
+                    if (removeIdAfter != null)
+                        removeIdAfter -= 1;
+                }
+                if (removeIdAfter != null) {
+                    scheduler.listLeases.splice(removeIdAfter , 1);
+                }
+
+                scheduler.listLeases.push([this.urn, start_time, duration]);
+
+                console.log(scheduler.listLeases);
+                //jQuery.publish('/update-set/' + scheduler.options.query_uuid, [scheduler.listLeases]);
+                jQuery.publish('/update-set/' + scheduler.options.lease_query_uuid, [scheduler.listLeases]);
+            },
+
+            init_mine: function (lease, unclick) {
+                var o = lease.scheduler.options;
+                lease.current="mine";
+                lease.animate((lease.initial=="mine") ? attr_lease_mine_mine : attr_lease_free_mine,o.anim_delay);
+                lease.click (lease_methods.click_mine);
+                if (unclick) lease.unclick(unclick);
+            },
+            
+            /* TODO: remove selected lease from array listLeases and publish change */
+            click_mine: function (event) {
+                var scheduler = this.scheduler;
+                // this lease was originally free but is now marked for booking
+                // we free just this lease
+                //console.log('this is mine');
+                lease_methods.init_free(this, lease_methods.click_mine);
+            },
+
+
+            init_other: function (lease, slicename) {
+                lease.animate (attr_lease_other,anim_delay);
+                /* a text obj to display the name of the slice that owns that lease */
+                var otherslicelabel = lease.scheduler.paper.text (lease.attr("x")+lease.attr("width")/2,
+                                          // xxx
+                                          lease.attr("y")+lease.attr("height")/2,slicename).attr(txt_otherslice);
+                /* hide it right away */
+                otherslicelabel.hide();
+                /* record it */
+                lease.label=otherslicelabel;
+                lease.hover ( function (e) {this.label.toFront();this.label.show();},
+                          function (e) {this.label.hide();} ); 
+            }
+        }
+
+    });
+
+    $.plugin('Scheduler', Scheduler);
+
+})(jQuery);