CC-4661: Listener Statistics

- frontend part

airtime_mvc/public/js/flot/FAQ.txt

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+Frequently asked questions
+--------------------------
+
+Q: How much data can Flot cope with?
+
+A: Flot will happily draw everything you send to it so the answer
+depends on the browser. The excanvas emulation used for IE (built with
+VML) makes IE by far the slowest browser so be sure to test with that
+if IE users are in your target group.
+
+1000 points is not a problem, but as soon as you start having more
+points than the pixel width, you should probably start thinking about
+downsampling/aggregation as this is near the resolution limit of the
+chart anyway. If you downsample server-side, you also save bandwidth.
+
+
+Q: Flot isn't working when I'm using JSON data as source!
+
+A: Actually, Flot loves JSON data, you just got the format wrong.
+Double check that you're not inputting strings instead of numbers,
+like [["0", "-2.13"], ["5", "4.3"]]. This is most common mistake, and
+the error might not show up immediately because Javascript can do some
+conversion automatically.
+
+
+Q: Can I export the graph?
+
+A: This is a limitation of the canvas technology. There's a hook in
+the canvas object for getting an image out, but you won't get the tick
+labels. And it's not likely to be supported by IE. At this point, your
+best bet is probably taking a screenshot, e.g. with PrtScn.
+
+
+Q: The bars are all tiny in time mode?
+
+A: It's not really possible to determine the bar width automatically.
+So you have to set the width with the barWidth option which is NOT in
+pixels, but in the units of the x axis (or the y axis for horizontal
+bars). For time mode that's milliseconds so the default value of 1
+makes the bars 1 millisecond wide.
+
+
+Q: Can I use Flot with libraries like Mootools or Prototype?
+
+A: Yes, Flot supports it out of the box and it's easy! Just use jQuery
+instead of $, e.g. call jQuery.plot instead of $.plot and use
+jQuery(something) instead of $(something). As a convenience, you can
+put in a DOM element for the graph placeholder where the examples and
+the API documentation are using jQuery objects.
+
+Depending on how you include jQuery, you may have to add one line of
+code to prevent jQuery from overwriting functions from the other
+libraries, see the documentation in jQuery ("Using jQuery with other
+libraries") for details.
+
+
+Q: Flot doesn't work with [insert name of Javascript UI framework]!
+
+A: The only non-standard thing used by Flot is the canvas tag;
+otherwise it is simply a series of absolute positioned divs within the
+placeholder tag you put in. If this is not working, it's probably
+because the framework you're using is doing something weird with the
+DOM, or you're using it the wrong way.
+
+A common problem is that there's display:none on a container until the
+user does something. Many tab widgets work this way, and there's
+nothing wrong with it - you just can't call Flot inside a display:none
+container as explained in the README so you need to hold off the Flot
+call until the container is actually displayed (or use
+visibility:hidden instead of display:none or move the container
+off-screen).
+
+If you find there's a specific thing we can do to Flot to help, feel
+free to submit a bug report. Otherwise, you're welcome to ask for help
+on the forum/mailing list, but please don't submit a bug report to
+Flot.