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181 articles returned

Yusef: the Unite Server Framework

By Zi Bin, Cheah

The Opera Unite Server framework, “Yusef”, is the foundation of Opera Unite applications bundled with Opera 10.10. It eases the development of Opera Unite applications by providing a set of core features such as access control, templating, secure administration and actions, image resizing and caching, and more.

Saving Opera Unite service data using File I/O

By Keith Johnson

In this article Keith Johnson takes the blog service example from our original Opera Unite developer's primer, and shows how to modify it so that your blog entries are persisted inside files. This is all done using the magic of the File I/O API.

Markuper: The Opera Unite Service template library

By António Afonso

This article introduces Markuper, a templating library that allows rapid development of Opera Unite Services and binding of data from JavaScript straight into the HTML templates.

Opera Presto 2.1 - Web standards supported by Opera’s core

By Bruce Lawson

This article details the standards support provided by the Opera Presto 2.1 rendering engine.

Opera 9.5 - the next generation of web standards

By Chris Mills

It’s here, at long last—Opera 9.5, codenamed Kestrel in the beta versions, has just been released in its final version. It has some very cool features and a great new skin, but what does it mean for developers? This article gives a complete overview of Opera 9.5’s standards support and explores its new developer tools.

Opera Widgets SDK

By Opera Software

The Opera Widgets Software Development Kit has been released, and this article acts as an index page for all the great things we've made available. Here you'll learn more about the basics of Opera Widgets and find links to articles, further tutorials, documentation, and tools. Dive on in, digest, and get creative.

File I/O API

By Opera Software

This new API provides you with functionality needed to access data on the desktop from widgets, providing powerful hybrid web/desktop capabilities.

Making legacy pages work with Web Forms 2

By Hallvord R. M. Steen

The Web Forms 2 specification makes it easier to write and validate forms - but some compatibility problems with legacy scripts exist. Learn how to solve them!

Opera Widgets Resources

By Opera Software

Ready to use graphics and templates for Widget production.

Efficient JavaScript

By Mark 'Tarquin' Wilton-Jones

As Web pages become more like applications, the performance of scripts is having a bigger effect. Learn how to make your Web applications more efficient through a series of simple changes.

How to Add Voice Interactivity to Your Site

By Mihai Sucan

Minimal code changes, maximal browser compatibility -- ROBOdesign explains how to make your site voice interactive using XHTML+Voice.

4: Web 標準のモデル — HTML, CSS, JavaScript

By Masataka Yakura

この記事は前回より深く、各技術がいったい何をするものなのか、また Web サイトを作る際にそれぞれの技術がどう関わりあうのかを見ていきましょう。

3: インターネットのしくみ

By Masataka Yakura

舞台の裏側で、歯車やベルトが回るのを見たことがあるでしょうか。今回は皆さんもよく知っている World Wide Web について、その舞台裏をお見せしましょう。World Wide Web を支えている技術には、次のようなものがあります:HTML (Hypertext Markup Language)、HTTP (Hypertext Transfer Protocol)、DNS (Domain Name System)、Web サーバーと Web ブラウザー、静的コンテンツと動的コンテンツ。

2: インターネットと Web の歴史、そして Web 標準の進化

By Masataka Yakura

全てのものには「はじまり」があります。ですから、このカリキュラムも歴史を紐解くことから始めましょう。この記事では、インターネットと World Wide Web、 そしてこのコースのテーマである「Web 標準」のはじまりについて簡単に紹介します。この記事は、インターネットや Web がどのような出来事を通じ現在に至ったのかを理解するのにとても役立つと思います。文章も長くありませんから、情報に圧倒されることなく詳細にすばやくたどり着けるでしょう。

1: Web 標準カリキュラムの紹介

By Masataka Yakura

私には、ある夢がありました。過去8、 9年にわたり、私は教育に関する仕事に力を注いでいました。あるときは技術書を執筆し、人がその技術で何かかっこいいものを作る手助けをしました。勤務先に新しく入ってきた人の訓練を行うこともありました。また、利用者の助けになるよう、Opera のソフトウェアについてチュートリアルの執筆・編集も行いました。

Opera Desktop Widgets evolved

By Remigiusz Bondarowicz

A preview of where Opera Widgets are heading: in our latest Labs release, Opera Widgets can run independently of the browser and become first-class citizens on Windows, Mac and Linux. This article gives an overview of how to install, run, import and debug widgets in our latest release.

Opera Unite developer’s primer — revisited

By Hans S. Tømmerholt

Opera Unite puts a Web server inside your Opera browser, allowing you to share files and applications with your friends and colleagues directly off your hard drive, and we've just released Opera 10.10 beta, which includes the Opera Unite server! This tutorial shows you how to get started on the road to Opera Unite application development by making a simple Opera Unite blog application.

Opera Widgets Specification 1.0 fourth edition

By Chris Mills

This document describes Opera Widgets 1.0, fourth edition, and covers all aspects of Opera Widgets, including the packaging format, the configuration file - config.xml - and scripting interfaces for working with widgets. This document represents the required solutions for creating and running interoperable Opera Widgets across target platforms, both on devices and desktop.

Gridnite - the Unite-powered multiuser spreadsheet application

By Slava Vishnyakov

In this article, Slava Vishnyakov - creator of unitehowto.com - takes you through the creation of a simple unite-powered multiuser spreadsheet application called Gridnite. This article covers the creation of the basic architecture, and more features will be added soon. Enjoy!