Here lies a library of Ur/Web code for rapid construction of web applications for organizing people and events in different ways. For a quick sense of what's going on here, see the app showcase site.

No doubt more documentation will materialize here soon. For now, see the Ui module (e.g., in file ui.urs) for definitions of the basic concepts underlying UPO. A quick tour of the big ideas:

• A value of type Ui.t a is a first-class UI element, ready to drop onto a page without any further fuss. The type parameter a stands for the private state of such a component.
• A module of type Ui.S or Ui.S0 packages a UI element as a module rather than a value, for cases where that's a more convenient interface.
• A number of basic combinators are available to compose UI elements. For instance, Ui.seq lays out a number of elements in sequence, and Ui.const produces a (boring) UI element that just displays some fixed HTML.
• The easiest way to bring a (usually composite) UI element to life is to convert it into a page with Ui.simple, which just takes one UI element as a parameter.
• Fancier pages include several tabs for selecting different full-page UI elements. The function Ui.tabbed creates such a page out of a tuple of elements, each with an optional title. (Tabs lacking titles are hidden.)
• Finally, pretty Bootstrap modal dialogs are supported via function Ui.modalButton that creates HTML for the button, given a computation that decides which HTML to display in the dialog when the button is clicked. Function Ui.modal is useful for creating that content.

Those are the basics! The other modules of the library define more complex UI elements, usually parameterized in a variety of ways. See the examples directory, which includes the showcase apps and some simpler demos.

Two other Ur/Web libraries are required: Bootstrap and AjaxUpload.