On Tue, Feb 21, 2012 at 10:36 PM, asgallant <[email protected]>wrote:
> The 'select' event fires when the colored blocks in the legend are > clicked. Note the the upcoming release will make the event file also when clicking the legend text (not only the colored box next to the legend text). When hooked into the event handler, the chart's #getSelection method should > return a single-element array containing an object with a null 'row' > property and a 'column' property corresponding it's index in the underlying > DataTable/DataView. See http://jsfiddle.net/XRwTT/ > > Neither the legend as a whole nor the individual text entries fire events > in the API, though. If you need to trigger events off of them, it is > theoretically possible to do so using standard javascript to dig into the > chart container's internal iframe's contents and hook events into the SVG > components therein. This can be problematic as: > > 1) it is not easy to identify specific chart components > 2) the internals of the charts can change without warning, breaking your > code > 3) IE uses VML charts instead of SVG, so you would need a separate code > path to handle IE. > > -- > You received this message because you are subscribed to the Google Groups > "Google Visualization API" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/google-visualization-api/-/2JhABfZuGQ8J. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-visualization-api?hl=en. > -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-visualization-api?hl=en.
