Wt

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Wt (pronounced "witty") is an open-source widget-centric web framework for the C++ programming language. It has an API resembling that of Qt framework (although it was developed with Boost, and is incompatible when mixed with Qt), also using a widget-tree and an event-driven signal/slot system. The Wt's design goal is to benefit from the stateful component model used in desktop-applications APIs, applied to web development—instead of the traditional MVC (model–view–controller) design pattern. So rather than using MVC at the level of a web page, it is pushed to the level of individual components. While the library uses a desktop software development process, it does support some web-specific features, including: Semantic URLs Navigation of browser's history One of the unique features of Wt is its abstraction layer of the browser rendering model. The library uses Ajax for communicating with browsers compatible with it, while using plain HTML-form post-backs for other user agents. Using a progressive bootstrap-method, the user interface is rendered as a plain HTML document first, then, provided its support in browser, it is automatically upgraded to use Ajax for increased interactivity. In this way, Wt is by definition: The only server-side framework implementing the strategy of progressive enhancement automatically; The only Ajax framework with search engine optimization (SEO) qualities. Because of the popularity of C/C++ in embedded system environments, Wt is often used in such devices and (as a consequence) has been highly optimized for performance.