1 /* need to put some place else in CSS ? */
4 /* decorations / headers */
6 var txt_nodename = {"font": '"Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', stroke: "none", fill: "#008"};
7 var txt_timeslot = {"font": '"Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', stroke: "none", fill: "#008"};
8 var attr_rules={'fill':"#888", 'stroke-dasharray':'- ', 'stroke-width':0.5};
14 /* lease dimensions and colors */
19 /* lease was originally free and is still free */
20 var attr_lease_free_free={'fill':"#def", 'stroke-width':0.5, 'stroke-dasharray':''};
21 /* lease was originally free and is now set for our usage */
22 var attr_lease_free_mine={'fill':"green", 'stroke-width':1, 'stroke-dasharray':'-..'};
23 /* was mine and is still mine */
24 var attr_lease_mine_mine={'fill':"#beb", 'stroke-width':0.5, 'stroke-dasharray':''};
25 /* was mine and is about to be released */
26 var attr_lease_mine_free={'fill':"white", 'stroke-width':1, 'stroke-dasharray':'-..'};
27 // refrained from using gradient color, was not animated properly
28 // var color_lease_mine_free="0-#fff-#def:50-#fff";
29 var attr_lease_other={'fill':"#f88"};
31 /* other slices name */
32 var txt_slice = {"font": '"Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', stroke: "none", fill: "#444",
35 ////////////////////////////////////////////////////////////
36 // the scheduler object
37 function Scheduler (slicename, axisx, axisy, data) {
39 this.slicename=slicename;
44 // utilities to keep track of all the leases
46 this.append_lease = function (lease) {
47 this.leases.push(lease);
50 // how many time slots
51 this.nb_grains = function () { return axisx.length;}
53 this.init = function (id) {
54 this.total_width = x_nodename + this.nb_grains()*x_grain;
55 this.total_height = 2*y_header + this.axisy.length*(y_node+y_sep);
56 paper = Raphael (id, this.total_width, this.total_height);
58 // create the time slots legend
63 for (var i=0, len=axisx.length; i < len; ++i) {
64 // pick the printable part
67 if (col%2 == 0) y += y_header;
69 var timelabel=paper.text(left,y,timeslot).attr(txt_timeslot)
70 .attr({"font-size":y_header, "text-anchor":"middle"});
71 var path_spec="M"+left+" "+(y+y_header/2)+"L"+left+" "+this.total_height;
72 var rule=paper.path(path_spec).attr(attr_rules);
76 // move to the lines below:
77 top += 2*y_header+y_sep;
80 for (var i=0, len=axisy.length; i<len; ++i) {
83 var nodelabel = paper.text(x_nodename-x_sep,top+y_node/2,node).attr(txt_nodename)
84 .attr ({"font-size":y_node, "text-anchor":"end","baseline":"bottom"});
88 while (grain < this.nb_grains()) {
89 slicename=data[data_index][0];
90 duration=data[data_index][1];
91 var lease=paper.rect (left,top,x_grain*duration,y_node,radius);
93 if (slicename == "") {
95 lease_methods.init_free(lease);
96 } else if (slicename == this.slicename) {
98 lease_methods.init_mine(lease);
100 lease_initial="other";
101 lease_methods.init_other(lease,slicename);
103 lease.from_time = axisx[grain%this.nb_grains()][0];
105 lease.until_time = axisx[grain%this.nb_grains()][0];
106 // record scheduler in lease
107 lease.scheduler=this;
109 this.append_lease(lease);
110 // move on with the loop
111 left += x_grain*duration;
114 top += y_node + y_sep;
118 this.submit = function () {
119 for (var i=0, len=this.leases.length; i<len; ++i) {
120 var lease=this.leases[i];
121 if (lease.current != lease.initial) {
122 var from_time=lease.from_time;
123 var until_time=lease.until_time;
124 /* scan the leases just after this one and merge if appropriate */
126 while (j<len && lease_methods.compare (lease, until_time, this.leases[j])) {
127 window.console.log('merged index='+j);
128 until_time=this.leases[j].until_time;
131 var method=(lease.current=='free') ? 'DeleteLeases' : 'AddLeases';
132 window.console.log(method + "(" +
133 "[" + lease.nodename + "]," +
134 this.slicename + "," +
141 this.clear = function () {
142 for (var i=0, len=this.leases.length; i<len; ++i) {
143 var lease=this.leases[i];
144 if (lease.current != lease.initial) {
145 if (lease.initial == 'free') lease_methods.init_free(lease,lease_methods.click_mine);
146 else lease_methods.init_mine(lease,lease_methods.click_free);
151 /* initialize mode buttons */
152 this.init_mode = function (default_mode, node_button, timeslot_button) {
153 this.node_button=node_button;
154 this.timeslot_button=timeslot_button;
156 /* xxx set callbacks on buttons */
157 node_button.onclick = function () { scheduler.set_mode('node'); }
158 timeslot_button.onclick = function () { scheduler.set_mode('timeslot'); }
159 this.set_mode(default_mode);
162 /* expecting mode to be either 'node' or 'timeslot' */
163 this.set_mode = function (mode) {
165 var active_button = (mode=='node') ? this.node_button : this.timeslot_button;
166 active_button.checked='checked';
172 //////////////////////////////////////// couldn't find how to inhererit from the raphael objects...
173 var lease_methods = {
175 /* in the process of merging leases before posting to the API */
176 compare: function (lease, until_time, next_lease) {
177 return (next_lease['nodename'] == lease['nodename'] &&
178 next_lease['from_time'] == until_time &&
179 next_lease['initial'] == lease['initial'] &&
180 next_lease['current'] == lease['current']);
183 init_free: function (lease, unclick) {
184 lease.current="free";
186 lease.animate((lease.initial=="free") ? attr_lease_free_free : attr_lease_mine_free,anim_delay);
187 // keep track of the current status
189 lease.click (lease_methods.click_free);
190 if (unclick) lease.unclick(unclick);
193 // find out all the currently free leases that overlap this one
194 click_free: function (event) {
195 var scheduler = this.scheduler;
196 if (scheduler.mode=='node') {
197 lease_methods.init_mine(this,lease_methods.click_free);
199 for (var i=0, len=scheduler.leases.length; i<len; ++i) {
200 scan=scheduler.leases[i];
202 if (scan.from_time<=this.from_time && scan.until_time>=this.until_time)
203 if (scan.current == "free") lease_methods.init_mine(scan,lease_methods.click_free);
208 init_mine: function (lease, unclick) {
209 lease.current="mine";
210 lease.animate((lease.initial=="mine") ? attr_lease_mine_mine : attr_lease_free_mine,anim_delay);
211 lease.click (lease_methods.click_mine);
212 if (unclick) lease.unclick(unclick);
215 click_mine: function (event) {
216 var scheduler = this.scheduler;
217 // this lease was originally free but is now marked for booking
218 // we free just this lease
219 if (scheduler.mode=='node') {
220 lease_methods.init_free(this, lease_methods.click_mine);
222 for (var i=0, len=scheduler.leases.length; i<len; ++i) {
223 scan=scheduler.leases[i];
225 if (scan.from_time<=this.from_time && scan.until_time>=this.until_time) {
226 if (scan.current == "mine") lease_methods.init_free(scan,lease_methods.click_mine);
228 // the other ones just remain as they are
234 init_other: function (lease, slicename) {
235 lease.animate (attr_lease_other,anim_delay);
236 /* a text obj to display the name of the slice that owns that lease */
237 var slicelabel = paper.text (lease.attr("x")+lease.attr("width")/2,
238 lease.attr("y")+lease.attr("height")/2,slicename).attr(txt_slice);
239 /* hide it right away */
242 lease.label=slicelabel;
243 lease.hover ( function (e) { this.label.toFront(); this.label.show(); },
244 function (e) { this.label.hide(); } );
248 function init_scheduler () {
250 var data = [], axisx = [], axisy = [];
251 var table = $$("table#leases_data")[0];
252 // no reservable nodes - no data
253 if ( ! table) return;
255 table.getElementsBySelector("tbody>tr>th").each(function (cell) {
256 axisy.push(getInnerText(cell));
258 // the timeslot labels
259 table.getElementsBySelector("thead>tr>th").each(function (cell) {
260 /* [0]: timestamp -- [1]: displayable*/
261 axisx.push(getInnerText(cell).split("&"));
263 // leases - expect colspan to describe length in grains
264 table.getElementsBySelector("tbody>tr>td").each(function (cell) {
265 data.push(new Array (getInnerText(cell),cell.colSpan));
267 // slicename : the upper-left cell
268 var scheduler = new Scheduler (getInnerText(table.getElementsBySelector("thead>tr>td")[0]), axisx, axisy, data);
270 // leases_area is a <div> created by slice.php as a placeholder
271 scheduler.init ("leases_area");
273 var submit=$$("button#leases_submit")[0];
274 submit.onclick = function () { scheduler.submit(); }
275 var clear=$$("button#leases_clear")[0];
276 clear.onclick = function () { scheduler.clear(); }
278 var node_button=$$("input#leases_mode_node")[0];
279 var timeslot_button=$$("input#leases_mode_timeslot")[0];
280 scheduler.init_mode ('timeslot',node_button,timeslot_button);
284 Event.observe(window, 'load', init_scheduler);