Dev.Opera

Log in

  • Web
  • Add-ons
  • Mobile
  • TV
  • Labs
  • Opera 11-12 extensions
  • Opera 15+ extensions
  • Themes
  • Mobile widget development process advice

    By Opera Software · Tuesday, February 9, 2010 4

    Generally, we recommend that you develop your widget on desktop, test your widget in the Widget Emulator, and test on the phone when you're done. Read more…

  • Cross-device development techniques for widgets

    By Opera Software · Tuesday, February 9, 2010 5

    This article looks at techniques, code examples, and tips for doing cross-device development of widgets. The techniques are grouped into the following sections: Usability, Architecture, Layout, Images and effects, Network, Client-server communication, DOM, and JavaScript. Read more…

  • Characteristics of widgets on mobile phones

    By Opera Software · Tuesday, February 9, 2010 2

    Read more…

  • Opera Widgets: cross-platform applications

    By Opera Software · Tuesday, February 9, 2010 1

    The Opera Widgets runtime is available on all platforms where Opera is available. This article discusses the nature of Opera Widgets, as cross-platform applications, goes through the benefits of their implementation model, and looks at some platform variations to be aware of when creating widgets. Read more…

  • Opera Widgets security model

    By Opera Software · Tuesday, February 9, 2010 11

    Read more…

  • Opera Widgets Preference Store

    By Opera Software · Tuesday, February 9, 2010 1

    The Opera Widgets Preference Store is where widgets store their settings and other data you want the widget to persist across sessions. Once data is stored in the Opera Widgets Preference Store, the user may close and reopen the widget, and the stored preferences will still be available. Read more…

  • Opera Widgets and Ajax: connecting to multiple servers

    By Opera Software · Tuesday, February 9, 2010 2

    Scripts on Web pages cannot connect to any Web server other than the one the page was loaded from. This is known as the same-origin security policy and is a cornerstone of keeping the Web safe. Read more…

  • Widget modes: docked, widget, and more

    By Opera Software · Tuesday, February 9, 2010 3

    On some platforms, the Opera Widgets runtime supports more than one mode for the widget to run in, for instance a mobile phone may support modes to show widgets one at a time in fullscreen mode, and to show multiple widgets, with each widget displayed in a separate slot on the screen. Read more…

  • 1
  • …
  • 25
  • 26
  • 27
  • …
  • 32

Add-ons Tools

  • Opera Developer builds
  • Web development extensions

Add-ons Resources

  • Opera 15+ extension docs
  • Add-ons Catalog
  • Opera Developer News
  • Can I use... tables for Opera
  • Opera extension questions on StackOverflow
  • GitHub repositories
  • Shiny Demos

Contribute

  • Submit articles

© 2014 Opera Software ASA.

  • Help/FAQ
  • Terms of service
  • Privacy