opera.extension.tabs.getAll()

By Opera Software

Description:

The getAll() method provides a way to obtain a tab collection. The value returned is based on the following algorithm:

1. If this is the global tab manager, return an array of BrowserTab objects representing each browser tab that is currently open.
2. If this is a window tab manager, return an array of BrowserTab objects representing each browser tab that is currently open within the context window.
3. If this is a group tab manager, return an array of BrowserTab objects representing each browser tab that is currently open within the context tab group.

Parameters:

None

Syntax:

BrowserTab[] getAll ()

Example:

The following example creates a button on the toolbar. When the button is clicked, the number of browser tabs currently open, including tab groups, is shown in the button's badge.

//
// The background process (e.g. index.html) 
//

// Specify the properties of the button before creating it.
var UIItemProperties = {
  disabled: false,
  title: "Example extension",
  icon: "images/icon_18.png",
  badge: {
    backgroundColor: '#cc0000',
    color: '#ffffff'
  }
};

// Create the button and add it to the toolbar.
var button = opera.contexts.toolbar.createItem( UIItemProperties );  
opera.contexts.toolbar.addItem(button);

button.addEventListener('click', handleClick, false);

function handleClick() {
  var tabs = opera.extension.tabs.getAll();
  button.badge.textContent = tabs.length;
}

This article is licensed under a Creative Commons Attribution 3.0 Unported license.