Mouse tracking on a facebook canvas page

[GoogleCodeExporter]

What steps will reproduce the problem?
1.render flotr in a facebook canvas page using this script:

// note that this is an array of timestamps in milliseconds with stock closing 
prices for that day.  I belive it is only necessary to include a timestamp 
price pairing for some date within the range and also the current date to 
observe the error.
    var closingPricesPlot = [[1313366400000.0, 557.23000000000002], [1313107200000.0, 563.76999999999998], [1313020800000.0, 562.13], [1312934400000.0, 549.00999999999999], [1312848000000.0, 573.40999999999997], [1312761600000.0, 546.01999999999998], [1312502400000.0, 579.03999999999996], [1312416000000.0, 577.51999999999998], [1312329600000.0, 601.16999999999996], [1312243200000.0, 592.39999999999998], [1312156800000.0, 606.76999999999998], [1311897600000.0, 603.69000000000005], [1311811200000.0, 610.94000000000005], [1311724800000.0, 607.22000000000003], [1311638400000.0, 622.51999999999998], [1311552000000.0, 618.98000000000002], [1311292800000.0, 618.23000000000002], [1311206400000.0, 606.99000000000001], [1311120000000.0, 595.35000000000002], [1311033600000.0, 602.54999999999995], [1310947200000.0, 594.94000000000005], [1310688000000.0, 597.62], [1310601600000.0, 528.94000000000005], [1310515200000.0, 538.25999999999999], [1310428800000.0, 534.00999999999999], [1310342400000.0, 527.27999999999997], [1310083200000.0, 531.99000000000001], [1309996800000.0, 546.60000000000002], [1309910400000.0, 535.36000000000001], [1309824000000.0, 532.44000000000005], [1309478400000.0, 521.02999999999997], [1309392000000.0, 506.38], [1309305600000.0, 497.56999999999999], [1309219200000.0, 493.64999999999998], [1309132800000.0, 482.80000000000001], [1308873600000.0, 474.88], [1308787200000.0, 480.22000000000003], [1308700800000.0, 487.0], [1308614400000.0, 493.0], [1308528000000.0, 484.57999999999998], [1308268800000.0, 485.01999999999998], [1308182400000.0, 500.37], [1308096000000.0, 502.94999999999999], [1308009600000.0, 508.37], [1307923200000.0, 504.73000000000002], [1307664000000.0, 509.5], [1307577600000.0, 516.73000000000002], [1307491200000.0, 519.16999999999996], [1307404800000.0, 519.02999999999997], [1307318400000.0, 521.05999999999995], [1307059200000.0, 523.08000000000004], [1306972800000.0, 528.05999999999995], [1306886400000.0, 525.60000000000002], [1306800000000.0, 529.01999999999998], [1306454400000.0, 520.89999999999998], [1306368000000.0, 518.13], [1306281600000.0, 519.66999999999996], [1306195200000.0, 518.25999999999999], [1306108800000.0, 518.38999999999999], [1305849600000.0, 524.02999999999997], [1305763200000.0, 531.25], [1305676800000.0, 529.80999999999995], [1305590400000.0, 530.46000000000004], [1305504000000.0, 518.41999999999996], [1305244800000.0, 529.54999999999995], [1305158400000.0, 535.04999999999995], [1305072000000.0, 535.45000000000005], [1304985600000.0, 542.65999999999997], [1304899200000.0, 537.67999999999995], [1304640000000.0, 535.29999999999995], [1304553600000.0, 534.26999999999998], [1304467200000.0, 535.78999999999996], [1304380800000.0, 533.88999999999999], [1304294400000.0, 538.55999999999995], [1304035200000.0, 544.10000000000002], [1303948800000.0, 537.97000000000003], [1303862400000.0, 537.75999999999999], [1303776000000.0, 532.82000000000005], [1303689600000.0, 525.04999999999995], [1303344000000.0, 525.10000000000002], [1303257600000.0, 525.73000000000002], [1303171200000.0, 521.52999999999997], [1303084800000.0, 526.84000000000003], [1302825600000.0, 530.70000000000005], [1302739200000.0, 578.50999999999999], [1302652800000.0, 576.27999999999997], [1302566400000.0, 570.61000000000001], [1302480000000.0, 577.37], [1302220800000.0, 578.15999999999997], [1302134400000.0, 580.0], [1302048000000.0, 574.17999999999995], [1301961600000.0, 569.09000000000003], [1301875200000.0, 587.67999999999995], [1301616000000.0, 591.79999999999995], [1301529600000.0, 586.75999999999999], [1301443200000.0, 581.84000000000003], [1301356800000.0, 581.73000000000002], [1301270400000.0, 575.36000000000001], [1301011200000.0, 579.74000000000001], [1300924800000.0, 586.88999999999999], [1300838400000.0, 582.15999999999997], [1300752000000.0, 577.32000000000005], [1300665600000.0, 576.5], [1300406400000.0, 561.05999999999995], [1300320000000.0, 561.36000000000001], [1300233600000.0, 557.10000000000002], [1300147200000.0, 569.55999999999995], [1300060800000.0, 569.99000000000001], [1299801600000.0, 576.71000000000004], [1299715200000.0, 580.29999999999995], [1299628800000.0, 591.76999999999998], [1299542400000.0, 592.30999999999995], [1299456000000.0, 591.65999999999997], [1299196800000.0, 600.62], [1299110400000.0, 609.55999999999995], [1299024000000.0, 600.78999999999996], [1298937600000.0, 600.75999999999999], [1298851200000.0, 613.39999999999998], [1298592000000.0, 610.03999999999996], [1298505600000.0, 608.82000000000005], [1298419200000.0, 611.32000000000005], [1298332800000.0, 610.21000000000004], [1297987200000.0, 630.08000000000004], [1297900800000.0, 625.25999999999999], [1297814400000.0, 624.22000000000003], [1297728000000.0, 624.14999999999998], [1297641600000.0, 628.14999999999998], [1297382400000.0, 624.5], [1297296000000.0, 616.44000000000005], [1297209600000.0, 616.5], [1297123200000.0, 618.38], [1297036800000.0, 614.29999999999995], [1296777600000.0, 610.98000000000002], [1296691200000.0, 610.14999999999998], [1296604800000.0, 612.0], [1296518400000.0, 611.03999999999996], [1296432000000.0, 600.36000000000001], [1296172800000.0, 600.99000000000001], [1296086400000.0, 616.78999999999996], [1296000000000.0, 616.5], [1295913600000.0, 619.90999999999997], [1295827200000.0, 611.08000000000004], [1295568000000.0, 611.83000000000004], [1295481600000.0, 626.76999999999998], [1295395200000.0, 631.75], [1295308800000.0, 639.63], [1294963200000.0, 624.17999999999995], [1294876800000.0, 616.69000000000005], [1294790400000.0, 616.87], [1294704000000.0, 616.00999999999999], [1294617600000.0, 614.21000000000004], [1294358400000.0, 616.44000000000005], [1294272000000.0, 613.5], [1294185600000.0, 609.07000000000005], [1294099200000.0, 602.12], [1294012800000.0, 604.35000000000002], [1293753600000.0, 593.97000000000003], [1293667200000.0, 598.86000000000001], [1293580800000.0, 601.0], [1293494400000.0, 598.91999999999996], [1293408000000.0, 602.38], [1293062400000.0, 604.23000000000002], [1292976000000.0, 605.49000000000001], [1292889600000.0, 603.07000000000005], [1292803200000.0, 595.05999999999995], [1292544000000.0, 590.79999999999995], [1292457600000.0, 591.71000000000004], [1292371200000.0, 590.29999999999995], [1292284800000.0, 594.90999999999997], [1292198400000.0, 594.62], [1291939200000.0, 592.21000000000004], [1291852800000.0, 591.5], [1291766400000.0, 590.53999999999996], [1291680000000.0, 587.13999999999999], [1291593600000.0, 578.36000000000001], [1291334400000.0, 573.0], [1291248000000.0, 571.82000000000005], [1291161600000.0, 564.35000000000002], [1291075200000.0, 555.71000000000004], [1290988800000.0, 582.11000000000001], [1290729600000.0, 590.0], [1290556800000.0, 594.97000000000003], [1290470400000.0, 583.00999999999999], [1290384000000.0, 591.22000000000003], [1290124800000.0, 590.83000000000004], [1290038400000.0, 596.55999999999995], [1289952000000.0, 583.54999999999995], [1289865600000.0, 583.72000000000003], [1289779200000.0, 595.47000000000003], [1289520000000.0, 603.28999999999996], [1289433600000.0, 617.19000000000005], [1289347200000.0, 622.88], [1289260800000.0, 624.82000000000005], [1289174400000.0, 626.76999999999998], [1288915200000.0, 625.08000000000004], [1288828800000.0, 624.26999999999998], [1288742400000.0, 620.17999999999995], [1288656000000.0, 615.60000000000002], [1288569600000.0, 615.0], [1288310400000.0, 613.70000000000005], [1288224000000.0, 618.58000000000004], [1288137600000.0, 616.47000000000003], [1288051200000.0, 618.60000000000002], [1287964800000.0, 616.5], [1287705600000.0, 612.52999999999997], [1287619200000.0, 611.99000000000001], [1287532800000.0, 607.98000000000002], [1287446400000.0, 607.83000000000004], [1287360000000.0, 617.71000000000004], [1287100800000.0, 601.45000000000005], [1287014400000.0, 540.92999999999995], [1286928000000.0, 543.29999999999995], [1286841600000.0, 541.38999999999999], [1286755200000.0, 538.84000000000003], [1286496000000.0, 536.35000000000002], [1286409600000.0, 530.00999999999999], [1286323200000.0, 534.35000000000002], [1286236800000.0, 538.23000000000002], [1286150400000.0, 522.35000000000002], [1285891200000.0, 525.62], [1285804800000.0, 525.78999999999996], [1285718400000.0, 527.69000000000005], [1285632000000.0, 527.16999999999996], [1285545600000.0, 530.40999999999997], [1285286400000.0, 527.28999999999996], [1285200000000.0, 513.48000000000002], [1285113600000.0, 516.0], [1285027200000.0, 513.46000000000004], [1284940800000.0, 508.27999999999997], [1284681600000.0, 490.14999999999998], [1284595200000.0, 481.06], [1284508800000.0, 480.63999999999999], [1284422400000.0, 480.43000000000001], [1284336000000.0, 482.26999999999998], [1284076800000.0, 476.13999999999999], [1283990400000.0, 476.18000000000001], [1283904000000.0, 470.57999999999998], [1283817600000.0, 464.39999999999998], [1283731200000.0, 470.30000000000001], [1283472000000.0, 470.30000000000001], [1283385600000.0, 463.18000000000001], [1283299200000.0, 460.33999999999997], [1283212800000.0, 450.01999999999998], [1283126400000.0, 452.69], [1282867200000.0, 458.82999999999998], [1282780800000.0, 450.98000000000002], [1282694400000.0, 454.62], [1282608000000.0, 451.38999999999999], [1282521600000.0, 464.06999999999999], [1282262400000.0, 462.01999999999998], [1282176000000.0, 467.97000000000003], [1282089600000.0, 482.14999999999998], [1282003200000.0, 490.51999999999998]]

    // max date
    var currentDate = new Date()
    var currentDay = currentDate.getDate()
    var currentMonth = currentDate.getMonth()
    var currentYear = currentDate.getFullYear()

    // min date
    if (currentMonth <= 3) {
      oldestDay = currentDay
      oldestMonth = 12 + currentMonth - 3
      oldestYear = currentYear - 1
    } else {
      oldestDay = currentDay
      oldestMonth = currentMonth - 3
      oldestYear = currentYear
    }

    maxDate = Date.UTC(currentYear,currentMonth,currentDay)
    minDate = Date.UTC(oldestYear,oldestMonth,oldestDay)

    document.observe('dom:loaded',function(){

        function xAxisTickFormatter(timestamp)
        {
          d = new Date()
          d.setTime(timestamp)
          month = d.getMonth()
          day = d.getDate()
          return month + "-" + day 
        }

        f = Flotr.draw(
          $('graph'), 
          [ {  data: closingPricesPlot, label: 'someSymbol'} ],
          {
            lines: {
              show:true
            },
            points: {
              show:true
            },
            legend: { 
              show: true, 
              position: 'se'
            },
            xaxis: {
              tickFormatter:xAxisTickFormatter,
              min: minDate,
              max: maxDate 
            },
            mouse: {
              track: true,
              relative: false,
              sensibility: 10
            }

          }
        );
      });

2. try to hover over a point to get the coordinates
3. notice that only the last point displayed at the edge of the graph

What is the expected output? What do you see instead?

I expect to see the coordinate values (timestamp,price) displayed, but instead 
it is not present when looking at any point within the range, and only present 
when I mouse over an area of the last point which is outside of the graph 
container (i.e. the circle extends beyond the edge of the graph)

What version of the product are you using? On what operating system?
I'm using Flotr 0.2.0 alpha on Debian Linux in Google Chrome version 
13.0.782.15 dev

Please provide any additional information below.
This can be viewed at http://apps.facebook.com/stock-decider then entering 
symbol name "goog" and period value "14".  Note, though it requires 
authentication it does not use any data from your account.  It is built from 
the Run With Friends example provided by facebook.

Attached is the django template which renders the graph.

Original issue reported on code.google.com by chadthef...@gmail.com on 16 Aug 2011 at 2:16

Attachments:

• decision.html

[GoogleCodeExporter]

This bug is fixed in svn checkout

Original comment by chadthef...@gmail.com on 17 Aug 2011 at 12:03