Chronoscope

Javascript Intro

Of course, since Chronoscope uses GWT, it is also fundamentally Javascript, but not everyone knows Java or likes to use Java to develop AJAX applications. Therefore, Chronoscope exports a simple Javascript API. For example, when Chronoscope's GWT entry point is triggered on load, it calls a function called "onChronoscopeLoaded" after it is fully initialized, you can customize this function to setup various charts in your page.

function onChronoscopeLoaded(chrono) { var data = [dataset]; chronoscope.Chronoscope.setFontBookRendering(true); chronoscope.Chronoscope.setFontBookServiceEndpoint("http://api.timepedia.org/fr"); chronoscope.Chronoscope.setErrorReporting(true); chronoscope.Chronoscope.createTimeseriesChartById("chartid", data, 650, 433, function(view) { view.getChart().redraw(); largeview = view; }); }

You can interact with Chronoscope via Javascript by starting in two different ways. First, you can write a GWT application includes the following bit of code in its entry point:

Chronoscope chronoscope = new Chronoscope(); chronoscope.init(); which exports the JS API to the browser environment, as well as invoking "onChronoscopeLoaded".

or, you can just use the Chronoscope Widget

In any case, after Chronoscope finishes initialization, it will invoke onChronoscopeLoaded. Then, and only then, is it safe to start calling JS API methods. At the moment, the JS API docs are incomplete, but you can get a good idea of what's possible by looking at the HTML source code of the demo or look for methods marked @Export in the GWT source code.

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