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Official Opera libraries

  • Activity Stream Generator

    An API for publishing to an activity stream

  • Animation

    The animation library and its extension is used to animate elements.

  • Base 64 Encoder

    The Base 64 Encoder Library is used to convert a string to base 64.

  • Calendar

    The Calendar Library is used to generate markup for displaying a calendar.

  • Calendar Events

    The Calendar Events library handles calendar events.

  • Counter

    The Counter Library can be used to make a counter that either counts up or down.

  • Feed Reader

    The Feed Reader Library handles reading data from one single RSS feed.

  • File I/O API

    The File I/O API provides you with functionality needed to access data on the desktop from widgets.

  • GetText

    GNU Gettext implementation

  • Graph

    The Graph Library eases the creation and display of different data.

  • Libraries Loader

    External library resource handler

  • Markuper

    Markuper is a template library that provides an easy way to develop Opera Unite services using a specific syntax that developers can use to create bindings between JavaScript code and HTML documents.

  • Multi Page Help

    The Multi Page Help library provides a way to create a help system that can consits of several different pages.

  • PSO

    A simple pub/sub debug output.

  • Resource Fetcher

    A class for periodic resources downloading.

  • Scraper

    The Scraper library is used to scrape a webpage for content.

  • Service Discovery API

    The Service discovery API lets you discover services that announce their presence on a network. You can then contact these services and potentially use data from them.

  • Tooltip

    The tooltip library lets you assign a tooltip to any element on your webpage.

  • Unite API

    The Opera Unite API lets you write Opera Unite services, turning your browser into a Web server.

  • Widget Chrome

    A library to make resizable widget chrome.

  • Widget Localization

    Derives the user agent's locale.

  • Widget Object API

    The Widget Object API lets you manipulate widgets via the widget object and extensions to the window object.

  • Yusef

    The Opera Unite application framework, foundation of Opera Unite applications.

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