plugins/scheduler/static/js/scheduler.js

   1 /**
   2  * Description: display a query result in a Google map
   3  * Copyright (c) 2012-2013 UPMC Sorbonne Universite - INRIA
   4  * License: GPLv3
   5  */
   6
   7 /* based on the leases.js code in PLE WWW interface for MyPLC by Thierry Parmentelat -- INRIA */
   8
   9 /* XXX Those declarations should not be part of the js file... */
  10
  11 /* decorations / headers */
  12 /* note: looks like the 'font' attr is not effective... */
  13
  14 // vertical rules
  15 var attr_rules={'fill':"#888", 'stroke-dasharray':'- ', 'stroke-width':0.5};
  16 // set font-size separately in here rather than depend on the height
  17 var txt_timelabel = {"font": 'Times, "Trebuchet MS", Verdana, Arial, Helvetica, sans-serif',
  18              stroke: "none", fill: "#008", 'font-size': 9};
  19 var txt_allnodes = {"font": '"Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', stroke: "none", fill: "#404"};
  20 var txt_nodelabel = {"font": '"Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', stroke: "none", fill: "#008"};
  21
  22 var attr_timebutton = {'fill':'#bbf', 'stroke': '#338','stroke-width':1,
  23                'stroke-linecap':'round', 'stroke-linejoin':'miter', 'stroke-miterlimit':3};
  24 var attr_daymarker = {'stroke':'#000','stroke-width':2};
  25 var attr_half_daymarker = {'stroke':'#444','stroke-width':2};
  26
  27 /* lease dimensions and colors */
  28 /* refrain from using gradient color, seems to not be animated properly */
  29 /* lease was originally free and is still free */
  30 var attr_lease_free_free={'fill':"#def", 'stroke-width':0.5, 'stroke-dasharray':''};
  31 /* lease was originally free and is now set for our usage */
  32 var attr_lease_free_mine={'fill':"green", 'stroke-width':1, 'stroke-dasharray':'-..'};
  33 /* was mine and is still mine */
  34 var attr_lease_mine_mine={'fill':"#beb", 'stroke-width':0.5, 'stroke-dasharray':''};
  35 /* was mine and is about to be released */
  36 var attr_lease_mine_free={'fill':"white", 'stroke-width':1, 'stroke-dasharray':'-..'};
  37 var attr_lease_other={'fill':"#f88"};
  38
  39 /* other slices name */
  40 var txt_otherslice = {"font": '"Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', stroke: "none", fill: "#444", "font-size": "12px"};
  41
  42 (function($){
  43
  44     var Scheduler = Plugin.extend({
  45
  46         init: function(options, element)
  47         {
  48             this._super(options, element);
  49
  50             /* Member variables */
  51             this._canvas_id = this.id('leases_area');
  52
  53             this.query_uuid = options.query_uuid;
  54             this.rows = null;
  55             // XXX TODEL
  56             //this.current_resources = Array();
  57             //this.current_leases = Array();
  58
  59             /* Managing asynchronous reception of resources and leases */
  60             this._resources          = Array();
  61             this._leases             = Array();
  62             this._received_resources = false;
  63             this._received_leases    = false;
  64
  65             this._axisx              = Array();
  66             this._nodelabels         = Array();
  67             this._lease_elements     = Array();
  68             //this.myLeases = Array();
  69             //this.allLeases = Array();
  70
  71             /* The time axis is an array of tuple (time, printable time) representing timeslots */
  72
  73             this.data = Array();
  74             this.default_granularity = 1800; /* 30 min */
  75             this._initial_timestamp = null;
  76
  77             /* This should be updated to be the ppcm of all granularities */
  78             this.min_granularity = this.default_granularity;
  79
  80             // the data contains slice names, and lease_id, we need this to find our own leases (mine)
  81             this.paper=null;
  82
  83
  84             /* XXX Events */
  85
  86             /* XXX Keys */
  87
  88             /* Listening to queries */
  89             this.listen_query(options.query_uuid);
  90             this.listen_query(options.query_all_resources_uuid, 'all_resources');
  91             this.listen_query(options.query_lease_uuid, 'lease');
  92
  93             /* XXX GUI setup and event binding */
  94             jQuery("#datepicker").datetimepicker({
  95                 //Timezone wise selection option
  96                 //timeFormat: 'hh:mm tt z',
  97                 //showTimezone: true,
  98
  99                 onSelect: function(value) {
 100                     //console.log(value);
 101                     //converting time to timestamp
 102                     currentDate= Math.round(Date.parse(value)/ 1000);
 103                     // TODO -- DONE
 104                     // convert value to timestamp --done
 105                     // Get jQuery("#timepicker").val(); - no need anymore
 106                     // convert timepicker into seconds - no need
 107                     // Add time to date - done
 108                     // pass the result to init_axisx - done
 109                     //console.log(currentDate);
 110                     s.clear();
 111                     s._init_axisx(currentDate);
 112                     s._draw();
 113                     // Do we need to populate the timeslots with existing leases?
 114                     // Look how to populate with initial_leases [we have to show the leases]
 115
 116                 }
 117             });
 118
 119             this._init_axisx('');
 120             this._draw();
 121
 122         }, /* init */
 123
 124         /* Default settings */
 125         default_options: {
 126             leases_offset:       0,
 127             leases_slots:        36,
 128             leases_w:            180,
 129             leases_granularity:  3600,
 130
 131             x_nodelabel:         200,   /* space for the nodenames */
 132             x_sep:               20,    /* right space after the nodename - removed from the above */
 133             y_header:            12,    /* height for the (two) rows of timelabels */
 134             y_sep:               10,    /* space between nodes */
 135             leases_w:            20,    /* 1-grain leases attributes */
 136             y_node:              15,
 137             radius:              6,
 138             anim_delay:          350,
 139             checkboxes:          false,
 140         },
 141
 142         /* PLUGIN EVENTS */
 143
 144         /* GUI EVENTS */
 145
 146         /************************** GUI MANIPULATION **************************/
 147
 148         /* NOTE: All Raphael-dependent code should go here. Performance issues
 149          * are suspected, it might be improved by a move to d3.js. The more
 150          * general problem to solve is how to manipulate lots of svg objects.
 151          */
 152
 153         /*************************** RECORD HANDLER ***************************/
 154
 155         /* ------------------------------------------------------------------
 156          * Resources
 157          * ------------------------------------------------------------------ */
 158
 159         on_query_in_progress: function() {
 160             this.spin();
 161         },
 162
 163         on_query_done: function() {
 164             /* We have received all leases */
 165             if (this._received_resources) {
 166                 this._draw(this._canvas_id);
 167                 this.unspin();
 168             }
 169             this._received_leases = true;
 170         },
 171
 172         /* ------------------------------------------------------------------
 173          * All resources
 174          * ------------------------------------------------------------------ */
 175
 176         on_all_resources_new_record: function(record)
 177         {
 178             if ((typeof record.exclusive != 'undefined') && (record.exclusive)) {
 179                 this._resources.push(Array(record.urn, record.hrn, record.type));
 180             }
 181             // ... if we do not have information about slivers (first update), update it
 182             if (typeof record.sliver != 'undefined') {
 183                 // XXX
 184             }
 185         },
 186
 187         /* ------------------------------------------------------------------
 188          * Leases
 189          * ------------------------------------------------------------------ */
 190
 191         on_lease_new_record: function(record)
 192         {
 193             this._leases.push(record);
 194             // this.initial_leases=leases;
 195         },
 196
 197         on_lease_query_done: function(record)
 198         {
 199             /* We have received all resources */
 200             if (this._received_leases) {
 201                 this._draw(this._canvas_id);
 202                 this.unspin();
 203             }
 204             this._received_resources = true;
 205         },
 206
 207         /************************** PRIVATE METHODS ***************************/
 208
 209         /**
 210          * @brief Return the number of time slots
 211          */
 212         nb_grains: function ()
 213         {
 214             return this._axisx.length;
 215         },
 216
 217         /**
 218          * @brief Returns whether there is a pending lease at this timestamp
 219          */
 220         _lease_find: function(urn, timestamp)
 221         {
 222             var scheduler = this;
 223             var result = null;
 224
 225             $.each(scheduler._leases, function(i, lease) {
 226                     if ((lease[0] == urn) &&
 227                         ((timestamp >= lease[1]) && (timestamp < (lease[1] + lease[2] * 1800)))) {
 228                             result = lease;
 229                             return false; // stop each
 230                     }
 231             });
 232
 233 /*
 234             $.each(Array(scheduler.myLeases, scheduler.allLeases), function(i, array) {
 235                 $.each(array, function(i, lease) {
 236                     if (lease[0] == urn) {
 237                         if ((timestamp >= lease[1]) && (timestamp < (lease[1] + lease[2] * 1800))) {
 238                             result = lease;
 239
 240                             return false;
 241                         }
 242                     }
 243                 });
 244                 if (result)
 245                     return false;
 246             });
 247 */
 248             return result;
 249         },
 250
 251         /**
 252          * @brief Draw
 253          */
 254         _draw: function()
 255         {
 256             var canvas_id = this._canvas_id;
 257             var o = this.options;
 258
 259             var total_width = o.x_nodelabel + this.nb_grains() * this.options.leases_w;
 260             var total_height = 2 * o.y_header /* the timelabels */
 261                              + 2 * o.y_sep    /* extra space */
 262                              + o.y_node          /* all-nodes & timebuttons row */
 263                              + (this._resources.length) * (o.y_node + o.y_sep);  /* the regular nodes and preceding space */
 264
 265             /* reuse for paper if exists with same size, or (re-)create otherwise */
 266             var paper;
 267             if (this.paper == null) {
 268                 paper = Raphael (canvas_id, total_width + o.x_sep, total_height);
 269             } else if (this.paper.width==total_width && this.paper.height==total_height) {
 270                 paper=this.paper;
 271                 paper.clear();
 272             } else {
 273                 $("#"+canvas_id)[0].innerHTML="";
 274                 //this.elmt().html();
 275                 paper = Raphael (canvas_id, total_width + o.x_sep, total_height);
 276             }
 277             this.paper = paper;
 278
 279             /* the path for the triangle-shaped buttons */
 280             var timebutton_path = "M1,0L"+(this.options.leases_w-1)+",0L"+(this.options.leases_w/2)+","+o.y_header+"L1,0";
 281
 282             var axisx = this._axisx;
 283             var axisy = this._resources;
 284
 285             /* maintain the list of nodelabels for the 'all nodes' button */
 286             this._nodelabels = [];
 287
 288
 289             /* create the time slots legend */
 290             var top = 0;
 291             var left = o.x_nodelabel;
 292
 293             var daymarker_height = 2*o.y_header + 2*o.y_sep + (axisy.length + 1) * (o.y_node + o.y_sep);
 294             var daymarker_path = "M0,0L0," + daymarker_height;
 295
 296             var half_daymarker_off= 2*o.y_header + o.y_sep;
 297             var half_daymarker_path="M0," + half_daymarker_off + "L0," + daymarker_height;
 298
 299             var col=0;
 300             for (var i=0, len = axisx.length; i < len; ++i) {
 301                 /* pick the printable part */
 302                 var timelabel = axisx[i][1];
 303                 var y = top + o.y_header;
 304                 if (col % 2 == 0)
 305                     y += o.y_header;
 306                 col +=1;
 307                 /* display time label */
 308                 var timelabel = paper.text(left, y, timelabel).attr(txt_timelabel).attr({"text-anchor": "middle"});
 309                 /* draw vertical line */
 310                 var path_spec = "M" + left + " " + (y+o.y_header / 2) + "L" + left + " " + this.total_height;
 311                 var rule = paper.path(path_spec).attr(attr_rules);
 312                 /* show a day marker when relevant */
 313                 var timestamp = parseInt(axisx[i][0]);
 314                 if ((timestamp % (24 * 3600)) == 0) {
 315                     paper.path(daymarker_path).attr({'translation': left + ',' + top}).attr(attr_daymarker);
 316                 } else if ( (timestamp%(12*3600))==0) {
 317                     paper.path(half_daymarker_path).attr({'translation': left + ',' + top}).attr(attr_daymarker);
 318                 }
 319                 left += o.leases_w;
 320             }
 321
 322             ////////// the row with the timeslot buttons (the one labeled 'All nodes')
 323             this.granularity = this.min_granularity; // XXX axisx[1][0]-axisx[0][0];
 324
 325             // move two lines down
 326             top += 2 * o.y_header + 2 * o.y_sep;
 327             left = o.x_nodelabel;
 328             // all nodes buttons
 329             var allnodes = paper.text(o.x_nodelabel - o.x_sep, top + o.y_node / 2, "All nodes").attr(txt_allnodes)
 330                 .attr({"font-size": o.y_node, "text-anchor": "end", "baseline": "bottom"});
 331             //allnodes.scheduler = this;
 332             allnodes.click(this._allnodes_click); // XXX click
 333
 334             // timeslot buttons [it's the triangles above the slots]
 335             for (var i = 0, len = axisx.length; i < len; ++i) {
 336                 var timebutton = paper.path(timebutton_path).attr({'translation':left + ',' + top}).attr(attr_timebutton);
 337                 timebutton.from_time = axisx[i][0];
 338                 timebutton.scheduler = this;
 339                 timebutton.click(this._timebutton_click);
 340                 left += (o.leases_w);
 341             }
 342
 343             //////// the body of the scheduler : loop on nodes
 344             top += o.y_node + o.y_sep;
 345
 346             var data_index = 0;
 347             this.leases = []; /* XXX ??? XXX */
 348
 349             for (var i = 0, len = axisy.length; i < len; ++i) {
 350                 var urn = axisy[i][0];
 351                 var nodename = axisy[i][1];
 352                 var type = axisy[i][2];
 353                 left = 0;
 354                 /*
 355                  *  MODIFIED font-size
 356                 var nodelabel = paper.text(o.x_nodelabel-x_sep,top+y_node/2,nodename).attr(txt_nodelabel)
 357                 .attr ({"font-size":y_node, "text-anchor":"end","baseline":"bottom"});
 358                 */
 359                 var nodelabel = paper.text(o.x_nodelabel - o.x_sep, top + o.y_node / 3, nodename).attr(txt_nodelabel)
 360                     .attr({"font-size": "12px", "text-anchor": "end","baseline": "bottom"});
 361
 362                 this._nodelabel_select(nodelabel, 1); // By default we select all nodes
 363                 nodelabel.scheduler = this;
 364                 nodelabel.click(this._nodelabel_click); //click action works here
 365                 this._nodelabels.push(nodelabel);
 366
 367                // lease_methods.init_free(nodelabel.click, lease_methods.click_mine);
 368                //lease_methods.init_free(nodelabel.lease);
 369
 370                 left += o.x_nodelabel;
 371
 372                 // data index contains the full array of leases
 373                 // not the same amount of grains per node
 374
 375                 // NOTE: remembering the previous lease might help for long leases.
 376                 var grain=0;
 377                 while (grain < this.nb_grains()) {
 378
 379                     if (l = this._lease_find(urn, this._initial_timestamp + grain * 1800)) {
 380                         slicename = l.slice_id;
 381                     } else {
 382                         slicename = "";
 383                     }
 384
 385                     //lease_id  = this.data[data_index][0];
 386                     //slicename = this.data[data_index][1];
 387                     /* Duration should not be the lease duration, but the grain */
 388                     var duration = 1; // this.data[data_index][2];
 389
 390                     var lease = paper.rect(left, top, o.leases_w * duration, o.y_node, o.radius);
 391                     lease.scheduler = this; // we record a pointer to the scheduler in the lease element
 392                     //lease.lease_id=lease_id;
 393                     lease.nodename  = nodename;
 394                     lease.urn       = urn;
 395                     lease.nodelabel = nodelabel;
 396
 397                     if (slicename == "") {
 398                         lease.initial = "free";
 399                         this._lease_init_free(lease);
 400                     } else if (slicename == o.slicename) {
 401                         lease.initial = "mine";
 402                         this._lease_init_mine(lease);
 403                     } else {
 404                         lease.initial = "other";
 405                         this._lease_init_other(lease, slicename);
 406                     }
 407                     lease.from_time = axisx[grain % this.nb_grains()][0];
 408                     grain += duration;
 409                     lease.until_time = axisx[grain % this.nb_grains()][0];
 410                     // and vice versa
 411                     this._lease_elements.push(lease);
 412                     // move on with the loop
 413                     left += o.leases_w * duration;
 414                     data_index += 1;
 415                 }
 416                 top += o.y_node + o.y_sep;
 417             };
 418         }, /* _draw */
 419
 420         _init_axisx: function(currentDate)
 421         {
 422             this._axisx = Array();
 423
 424             if(currentDate == "") {
 425                 // creating timestamp of the current time
 426                 currentDate = new Date().getTime() / 1000;
 427             }
 428             this._initial_timestamp = currentDate;
 429             //console.log(currentDate);
 430
 431             // round it by granularity (becomes an Int)
 432             var rounded = Math.round(currentDate / this.min_granularity) * this.min_granularity;
 433             // Convert Int to Date
 434             rounded = new Date(rounded * 1000);
 435             // get hours and minutes in a 24h format 00:00
 436             var roundedHours   = (rounded.getHours()   < 10 ? '0' : '') + rounded.getHours();
 437             var roundedMinutes = (rounded.getMinutes() < 10 ? '0' : '') + rounded.getMinutes();
 438
 439             this._axisx.push(Array(rounded, roundedHours + ":" + roundedMinutes));
 440
 441             // Generate as many slots as we need
 442             for(i = 0; i < this.options.leases_slots; i++) {
 443                 rounded = this.min_granularity + (rounded.getTime() / 1000);
 444                 rounded = new Date(rounded * 1000);
 445                 roundedHours   = (rounded.getHours()   < 10 ? '0' : '') + rounded.getHours();
 446                 roundedMinutes = (rounded.getMinutes() < 10 ? '0' : '') + rounded.getMinutes();
 447
 448                 this._axisx.push(Array(rounded, roundedHours + ":" + roundedMinutes));
 449             }
 450         },
 451
 452         clear: function ()
 453         {
 454             for (var i=0, len = this.leases.length; i<len; ++i) {
 455                 var lease = this.leases[i];
 456                 if (lease.current != lease.initial) {
 457                     if (lease.initial == 'free')
 458                         this._lease_init_free(lease, this._lease_click_mine);
 459                     else
 460                         this._lease_init_mine(lease, this._lease_methods.click_free);
 461                 }
 462             }
 463         },
 464
 465         // XXX Couldn't find how to inhererit from the raphael objects...
 466
 467         /* ---------------------------------------------------------------------
 468          * The 'all nodes' button
 469          */
 470         _allnodes_click: function (event) {
 471             var scheduler=this.scheduler;
 472
 473             /* decide what to do */
 474             var unselected = 0;
 475             for (var i = 0, len = this._nodelabels.length; i < len; ++i)
 476                 if (!this._nodelabels[i].selected)
 477                     unselected++;
 478
 479             /* if at least one is not selected : select all */
 480             var new_state = (unselected >0) ? 1 : 0;
 481             for (var i=0, len=this._nodelabels.length; i<len; ++i)
 482                 this._nodelabel_select(this._nodelabels[i], new_state);
 483         },
 484
 485         /* ---------------------------------------------------------------------
 486          * The buttons for managing the whole timeslot
 487          */
 488
 489         /* clicking */
 490         _timebutton_click: function (event)
 491         {
 492             var scheduler  = this.scheduler;
 493             var from_time  = this.from_time;
 494             var until_time = new Date(from_time.getTime() + scheduler.granularity);
 495             /* scan leases on selected nodes, store in two arrays */
 496             var relevant_free = [], relevant_mine = [];
 497             for (var i = 0, len = scheduler._lease_elements.length; i < len; ++i) {
 498                 var scan = scheduler._lease_elements[i];
 499                 if (!scan.nodelabel.selected)
 500                     continue;
 501                 // overlap ?
 502                 if (scan.from_time <= from_time && scan.until_time >= until_time) {
 503                     if (scan.current == "free")
 504                         relevant_free.push(scan);
 505                     else if (scan.current == "mine")
 506                         relevant_mine.push(scan);
 507                 }
 508             }
 509             // window.console.log("Found " + relevant_free.length + " free and " + relevant_mine.length + " mine");
 510             /* decide what to do, whether book or release */
 511             if (relevant_mine.length == 0 && relevant_free.length == 0) {
 512                 alert ("Nothing to do in this timeslot on the selected nodes");
 513                 return;
 514             }
 515             // if at least one is free, let's book
 516             if (relevant_free.length > 0) {
 517                 for (var i = 0, len = relevant_free.length; i < len; ++i) {
 518                     var lease = relevant_free[i];
 519                     scheduler._lease_init_mine(lease, scheduler._lease_click_free);
 520                 }
 521             // otherwise we unselect
 522             } else {
 523                 for (var i = 0, len = relevant_mine.length; i < len; ++i) {
 524                     var lease = relevant_mine[i];
 525                     scheduler._lease_init_free(lease, scheduler._lease_click_mine);
 526                 }
 527             }
 528         }, /* _timebutton_click */
 529
 530         /* ---------------------------------------------------------------------
 531          * The nodelabel buttons
 532          */
 533
 534         // set selected mode and render visually
 535         _nodelabel_select: function (nodelabel, flag)
 536         {
 537             nodelabel.selected = flag;
 538             nodelabel.attr({'font-weight': (flag ? 'bold' : 'normal')});
 539             // TODO
 540             //
 541             // loop on axis x and select each timebutton
 542             // for (var i=0, len=axisx.length; i < len; ++i)
 543             // figure out how to use timebutton_methods.click();
 544
 545         },
 546
 547         // toggle selected
 548         _nodelabel_click: function (event)
 549         {
 550             this.scheduler._nodelabel_select( this, ! this.selected );
 551         },
 552
 553
 554         /* ---------------------------------------------------------------------
 555          * The lease buttons
 556          */
 557         _lease_init_free: function (lease, unclick)
 558         {
 559             var o = lease.scheduler.options;
 560             lease.current = "free";
 561             // set color
 562             lease.animate((lease.initial == "free") ? attr_lease_free_free : attr_lease_mine_free, o.anim_delay);
 563             // keep track of the current status
 564             // record action
 565             lease.click(this._lease_click_free);
 566             if (unclick) lease.unclick(unclick);
 567         },
 568
 569         // find out all the currently free leases that overlap this one
 570         _lease_click_free: function (event)
 571         {
 572             var scheduler = this.scheduler;
 573
 574             scheduler._lease_init_mine(this, scheduler._lease_click_free);
 575             //publish
 576             //this.from_time
 577             //this.urn
 578             //this.until_time
 579             var urn        = this.urn
 580             var start_time = new Date(this.from_time).getTime() / 1000;
 581             var end_time   = new Date(this.until_time).getTime() / 1000;
 582             var duration   = (end_time - start_time) / 1800; // XXX HARDCODED LEASE GRAIN
 583
 584             /* Add a new lease : XXX should be replaced by a dictionary */
 585             // Do we have a lease with the same urn  just before or just after ?
 586             var removeIdBefore = null;
 587             var removeIdAfter  = null;
 588             $.each(scheduler._leases, function(i, lease) {
 589                 if (lease[0] == urn) {
 590                     if (lease[1] + lease[2] * 1800 == start_time) { // XXX HARDCODED LEASE GRAIN
 591                         // Merge with previous lease
 592                         removeIdBefore = i;
 593                         start_time = lease[1];
 594                         duration += lease[2];
 595                     }
 596                     if (lease[1] == end_time) {
 597                         // Merge with following lease
 598                         removeIdAfter = i;
 599                         duration += lease[2];
 600                     }
 601                 }
 602             });
 603             if (removeIdBefore != null) {
 604                 scheduler._leases.splice(removeIdBefore , 1);
 605                 if (removeIdAfter != null)
 606                     removeIdAfter -= 1;
 607             }
 608             if (removeIdAfter != null) {
 609                 scheduler._leases.splice(removeIdAfter , 1);
 610             }
 611
 612             scheduler._leases.push([this.urn, start_time, duration]);
 613
 614             //console.log(scheduler._leases);
 615             //jQuery.publish('/update-set/' + scheduler.options.query_uuid, [scheduler._leases]);
 616
 617             /* We need to inform manifold about the whole diff, in addition to maintaining our own structure */
 618             jQuery.publish('/update-set/' + scheduler.options.lease_query_uuid, [scheduler._leases]);
 619         },
 620
 621         _lease_init_mine: function (lease, unclick)
 622         {
 623             var o = lease.scheduler.options;
 624             lease.current = "mine";
 625             lease.animate((lease.initial == "mine") ? attr_lease_mine_mine : attr_lease_free_mine, o.anim_delay);
 626             lease.click(this._lease_click_mine);
 627             if (unclick)
 628                 lease.unclick(unclick);
 629         },
 630
 631         /* TODO: remove selected lease from array _leases and publish change */
 632         _lease_click_mine: function (event)
 633         {
 634             var scheduler = this.scheduler;
 635             // this lease was originally free but is now marked for booking
 636             // we free just this lease
 637             //console.log('this is mine');
 638             scheduler._lease_init_free(this, scheduler._lease_click_mine);
 639         },
 640
 641
 642         lease_init_other: function (lease, slicename)
 643         {
 644             lease.animate (attr_lease_other,anim_delay);
 645             /* a text obj to display the name of the slice that owns that lease */
 646             var otherslicelabel = lease.scheduler.paper.text (lease.attr("x")+lease.attr("width")/2,
 647                                       // xxx
 648                                       lease.attr("y")+lease.attr("height")/2,slicename).attr(txt_otherslice);
 649             /* hide it right away */
 650             otherslicelabel.hide();
 651             /* record it */
 652             lease.label=otherslicelabel;
 653             lease.hover ( function (e) {this.label.toFront();this.label.show();},
 654                       function (e) {this.label.hide();} );
 655         }
 656
 657     });
 658
 659     $.plugin('Scheduler', Scheduler);
 660
 661 })(jQuery);