<!DOCTYPE html><!-- This page is a placeholder for generated extensions api doc. Note: 1) The <head> information in this page is significant, should be uniform across api docs and should be edited only with knowledge of the templating mechanism. 3) All <body>.innerHTML is genereated as an rendering step. 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You'll need run chrome with --allow-file-access-from-files. </div> <!-- SUBTEMPLATES: DO NOT MOVE FROM THIS LOCATION --> <!-- In particular, sub-templates that recurse, must be used by allowing jstemplate to make a copy of the template in this section which are not operated on by way of the jsskip="true" --> <div style="display:none"> <!-- VALUE --> <div id="valueTemplate"> <dt> <var>paramName</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional">optional</span> <span class="enum">enumerated</span> <span id="typeTemplate"> <span> <a> Type</a> </span> <span> <span> array of <span><span></span></span> </span> <span>paramType</span> <span></span> </span> </span> ) </div> </em> </dt> <dd class="todo"> Undocumented. </dd> <dd> Description of this parameter from the json schema. </dd> <dd> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd> <dl> <div> <div> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd> <div></div> </dd> </div> <!-- /VALUE --> <div id="functionParametersTemplate"> <h5>Parameters</h5> <dl> <div> <div> </div> </div> </dl> </div> </div> <!-- /SUBTEMPLATES --> <a id="top"></a> <div id="skipto"> <a href="#gc-pagecontent">Skip to page content</a> <a href="#gc-toc">Skip to main navigation</a> </div> <!-- API HEADER --> <table id="header" width="100%" cellspacing="0" border="0"> <tbody><tr> <td valign="middle"><a href="http://code.google.com/"><img src="images/code_labs_logo.gif" height="43" width="161" alt="Google Code Labs" style="border:0; margin:0;"></a></td> <td valign="middle" width="100%" style="padding-left:0.6em;"> <form action="http://www.google.com/cse" id="cse" style="margin-top:0.5em"> <div id="gsc-search-box"> <input type="hidden" name="cx" value="002967670403910741006:61_cvzfqtno"> <input type="hidden" name="ie" value="UTF-8"> <input type="text" name="q" value="" size="55"> <input class="gsc-search-button" type="submit" name="sa" value="Search"> <br> <span class="greytext">e.g. "page action" or "tabs"</span> </div> </form> <script type="text/javascript" src="http://www.google.com/jsapi"></script> <script type="text/javascript">google.load("elements", "1", {packages: "transliteration"});</script> <script type="text/javascript" src="http://www.google.com/coop/cse/t13n?form=cse&t13n_langs=en"></script> <script type="text/javascript" src="http://www.google.com/coop/cse/brand?form=cse&lang=en"></script> </td> </tr> </tbody></table> <div id="codesiteContent" class=""> <a id="gc-topnav-anchor"></a> <div id="gc-topnav"> <h1>Google Chrome Extensions (<a href="http://code.google.com/labs/">Labs</a>)</h1> <ul id="home" class="gc-topnav-tabs"> <li id="home_link"> <a href="index.html" title="Google Chrome Extensions home page">Home</a> </li> <li id="docs_link"> <a href="docs.html" title="Official Google Chrome Extensions documentation">Docs</a> </li> <li id="faq_link"> <a href="faq.html" title="Answers to frequently asked questions about Google Chrome Extensions">FAQ</a> </li> <li id="samples_link"> <a href="samples.html" title="Sample extensions (with source code)">Samples</a> </li> <li id="group_link"> <a href="http://groups.google.com/a/chromium.org/group/chromium-extensions" title="Google Chrome Extensions developer forum">Group</a> </li> </ul> </div> <!-- end gc-topnav --> <div class="g-section g-tpl-170"> <!-- SIDENAV --> <div class="g-unit g-first" id="gc-toc"> <ul> <li><a href="getstarted.html">Getting Started</a></li> <li><a href="overview.html">Overview</a></li> <li><a href="whats_new.html">What's New?</a></li> <li><h2><a href="devguide.html">Developer's Guide</a></h2> <ul> <li>Browser UI <ul> <li class="leftNavSelected">Browser Actions</li> <li><a href="contextMenus.html">Context Menus</a></li> <li><a href="notifications.html">Desktop Notifications</a></li> <li><a href="omnibox.html">Omnibox</a></li> <li><a href="options.html">Options Pages</a></li> <li><a href="override.html">Override Pages</a></li> <li><a href="pageAction.html">Page Actions</a></li> </ul> </li> <li>Browser Interaction <ul> <li><a href="bookmarks.html">Bookmarks</a></li> <li><a href="cookies.html">Cookies</a></li> <li><a href="events.html">Events</a></li> <li><a href="history.html">History</a></li> <li><a href="management.html">Management</a></li> <li><a href="tabs.html">Tabs</a></li> <li><a href="windows.html">Windows</a></li> </ul> </li> <li>Implementation <ul> <li><a href="a11y.html">Accessibility</a></li> <li><a href="background_pages.html">Background Pages</a></li> <li><a href="content_scripts.html">Content Scripts</a></li> <li><a href="xhr.html">Cross-Origin XHR</a></li> <li><a href="idle.html">Idle</a></li> <li><a href="i18n.html">Internationalization</a></li> <li><a href="messaging.html">Message Passing</a></li> <li><a href="npapi.html">NPAPI Plugins</a></li> </ul> </li> <li>Finishing <ul> <li><a href="hosting.html">Hosting</a></li> <li><a href="external_extensions.html">Other Deployment Options</a></li> </ul> </li> </ul> </li> <li><h2><a href="apps.html">Packaged Apps</a></h2></li> <li><h2><a href="tutorials.html">Tutorials</a></h2> <ul> <li><a href="tut_debugging.html">Debugging</a></li> <li><a href="tut_analytics.html">Google Analytics</a></li> <li><a href="tut_oauth.html">OAuth</a></li> </ul> </li> <li><h2>Reference</h2> <ul> <li>Formats <ul> <li><a href="manifest.html">Manifest Files</a></li> <li><a href="match_patterns.html">Match Patterns</a></li> </ul> </li> <li><a href="permission_warnings.html">Permission Warnings</a></li> <li><a href="api_index.html">chrome.* APIs</a></li> <li><a href="api_other.html">Other APIs</a></li> </ul> </li> <li><h2><a href="samples.html">Samples</a></h2></li> <div class="line"> </div> <li><h2>More</h2> <ul> <li><a href="http://code.google.com/chrome/webstore/docs/index.html">Chrome Web Store</a></li> <li><a href="http://code.google.com/chrome/apps/docs/developers_guide.html">Hosted Apps</a></li> <li><a href="themes.html">Themes</a></li> </ul> </li> </ul> </div> <script> initToggles(); </script> <div class="g-unit" id="gc-pagecontent"> <div id="pageTitle"> <h1 class="page_title">Browser Actions</h1> </div> <!-- TABLE OF CONTENTS --> <div id="toc"> <h2>Contents</h2> <ol> <li> <a href="#manifest">Manifest</a> <ol> <li style="display: none; "> <a>h3Name</a> </li> </ol> </li><li> <a href="#ui">Parts of the UI</a> <ol> <li> <a href="#icon">Icon</a> </li><li> <a href="#tooltip">Tooltip</a> </li><li> <a href="#badge">Badge</a> </li><li> <a href="#popups">Popup</a> </li> </ol> </li><li> <a href="#H2-6">Tips</a> <ol> <li style="display: none; "> <a>h3Name</a> </li> </ol> </li><li> <a href="#examples"> Examples </a> <ol> <li style="display: none; "> <a>h3Name</a> </li> </ol> </li> <li> <a href="#apiReference">API reference: chrome.browserAction</a> <ol> <li style="display: none; "> <a href="#properties">Properties</a> <ol> <li> <a href="#property-anchor">propertyName</a> </li> </ol> </li> <li> <a href="#global-methods">Methods</a> <ol> <li> <a href="#method-setBadgeBackgroundColor">setBadgeBackgroundColor</a> </li><li> <a href="#method-setBadgeText">setBadgeText</a> </li><li> <a href="#method-setIcon">setIcon</a> </li><li> <a href="#method-setPopup">setPopup</a> </li><li> <a href="#method-setTitle">setTitle</a> </li> </ol> </li> <li> <a href="#global-events">Events</a> <ol> <li> <a href="#event-onClicked">onClicked</a> </li> </ol> </li> <li style="display: none; "> <a href="#types">Types</a> <ol> <li> <a href="#id-anchor">id</a> </li> </ol> </li> </ol> </li> </ol> </div> <!-- /TABLE OF CONTENTS --> <!-- Standard content lead-in for experimental API pages --> <p id="classSummary" style="display: none; "> For information on how to use experimental APIs, see the <a href="experimental.html">chrome.experimental.* APIs</a> page. </p> <!-- STATIC CONTENT PLACEHOLDER --> <div id="static"><div id="pageData-name" class="pageData">Browser Actions</div> <!-- BEGIN AUTHORED CONTENT --> <p>Use browser actions to put icons in the main Google Chrome toolbar, to the right of the address bar. In addition to its <a href="#icon">icon</a>, a browser action can also have a <a href="#tooltip">tooltip</a>, a <a href="#badge">badge</a>, and a <a href="#popups">popup</a>. </p> <p> In the following figure, the multicolored square to the right of the address bar is the icon for a browser action. A popup is below the icon. </p> <img src="images/browser-action.png" width="363" height="226"> <p> If you want to create an icon that isn't always visible, use a <a href="pageAction.html">page action</a> instead of a browser action. </p> <p class="caution"> <strong>Note:</strong> Packaged apps cannot use browser actions. </p> <!-- [PENDING: We should show tooltips and badges, as well.] --> <h2 id="manifest">Manifest</h2> <p> Register your browser action in the <a href="manifest.html">extension manifest</a> like this: </p> <pre>{ "name": "My extension", ... <b>"browser_action": { "default_icon": "images/icon19.png", <em>// optional</em> "default_title": "Google Mail", <em>// optional; shown in tooltip</em> "default_popup": "popup.html" <em>// optional</em> }</b>, ... }</pre> <h2 id="ui">Parts of the UI</h2> <p> A browser action can have an <a href="#icon">icon</a>, a <a href="#tooltip">tooltip</a>, a <a href="#badge">badge</a>, and a <a href="#popups">popup</a>. </p> <h3 id="icon">Icon</h3> <p>Browser action icons can be up to 19 pixels wide and high. Larger icons are resized to fit, but for best results, use a 19-pixel square icon.</p> <p>You can set the icon in two ways: using a static image or using the HTML5 <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html">canvas element</a>. Using static images is easier for simple applications, but you can create more dynamic UIs — such as smooth animation — using the canvas element. </p> <p>Static images can be in any format WebKit can display, including BMP, GIF, ICO, JPEG, or PNG. </p> <p>To set the icon, use the <b>default_icon</b> field of <b>browser_action</b> in the <a href="#manifest">manifest</a>, or call the <a href="#method-setIcon">setIcon()</a> method. </p><h3 id="tooltip">Tooltip</h3> <p> To set the tooltip, use the <b>default_title</b> field of <b>browser_action</b> in the <a href="#manifest">manifest</a>, or call the <a href="#method-setTitle">setTitle()</a> method. You can specify locale-specific strings for the <b>default_title</b> field; see <a href="i18n.html">Internationalization</a> for details. </p> <h3 id="badge">Badge</h3> <p>Browser actions can optionally display a <em>badge</em> — a bit of text that is layered over the icon. Badges make it easy to update the browser action to display a small amount of information about the state of the extension.</p> <p>Because the badge has limited space, it should have 4 characters or less. </p> <p> Set the text and color of the badge using <a href="#method-setBadgeText">setBadgeText()</a> and <a href="#method-setBadgeBackgroundColor">setBadgeBackgroundColor()</a>, respectively. <!-- [PENDING: if you have a color but no text, will anything display?] --> </p> <h3 id="popups">Popup</h3> <p>If a browser action has a popup, the popup appears when the user clicks the icon. The popup can contain any HTML contents that you like, and it's automatically sized to fit its contents. </p> <p> To add a popup to your browser action, create an HTML file with the popup's contents. Specify the HTML file in the <b>default_popup</b> field of <b>browser_action</b> in the <a href="#manifest">manifest</a>, or call the <a href="#method-setPopup">setPopup()</a> method. </p> <a name="H2-6"></a><h2>Tips</h2> <p>For the best visual impact, follow these guidelines:</p> <ul> <li><b>Do</b> use browser actions for features that make sense on most pages. </li><li><b>Don't</b> use browser actions for features that make sense for only a few pages. Use <a href="pageAction.html">page actions</a> instead. </li><li><b>Do</b> use big, colorful icons that make the most of the 19x19-pixel space. Browser action icons should seem a little bigger and heavier than page action icons. </li><li><b>Don't</b> attempt to mimic Google Chrome's monochrome "wrench" icon. That doesn't work well with themes, and anyway, extensions should stand out a little. </li><li><b>Do</b> use alpha transparency to add soft edges to your icon. Because many people use themes, your icon should look nice on a variety of background colors. </li><li><b>Don't</b> constantly animate your icon. That's just annoying. </li></ul> <h2 id="examples"> Examples </h2> <p> You can find simple examples of using browser actions in the <a href="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/common/extensions/docs/examples/api/browserAction/">examples/api/browserAction</a> directory. For other examples and for help in viewing the source code, see <a href="samples.html">Samples</a>. </p> <!-- END AUTHORED CONTENT --> </div> <!-- API PAGE --> <div class="apiPage"> <a name="apiReference"></a> <h2>API reference: chrome.browserAction</h2> <!-- PROPERTIES --> <div class="apiGroup" style="display: none; "> <a name="properties"></a> <h3 id="properties">Properties</h3> <div> <a></a> <h4>getLastError</h4> <div class="summary"> <!-- Note: intentionally longer 80 columns --> <span>chrome.extension</span><span>lastError</span> </div> <div> </div> </div> </div> <!-- /apiGroup --> <!-- METHODS --> <div id="methodsTemplate" class="apiGroup"> <a name="global-methods"></a> <h3>Methods</h3> <!-- iterates over all functions --> <div class="apiItem"> <a name="method-setBadgeBackgroundColor"></a> <!-- method-anchor --> <h4>setBadgeBackgroundColor</h4> <div class="summary"><span style="display: none; ">void</span> <!-- Note: intentionally longer 80 columns --> <span>chrome.browserAction.setBadgeBackgroundColor</span>(<span class="null"><span style="display: none; ">, </span><span>object</span> <var><span>details</span></var></span>)</div> <div class="description"> <p class="todo" style="display: none; ">Undocumented.</p> <p>Sets the background color for the badge.</p> <!-- PARAMETERS --> <h4>Parameters</h4> <dl> <div> <div> <dt> <var>details</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional" style="display: none; ">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>object</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo"> Undocumented. </dd> <dd style="display: none; "> Description of this parameter from the json schema. </dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd> <dl> <div> <div> <dt> <var>color</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional" style="display: none; ">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span> array of <span><span> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>integer</span> <span style="display: none; "></span> </span> </span></span> </span> <span style="display: none; ">paramType</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo" style="display: none; "> Undocumented. </dd> <dd>An array of four integers in the range [0,255] that make up the RGBA color of the badge. For example, opaque red is <code>[255, 0, 0, 255]</code>.</dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd style="display: none; "> <dl> <div> <div> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div><div> <div> <dt> <var>tabId</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>integer</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo" style="display: none; "> Undocumented. </dd> <dd>Limits the change to when a particular tab is selected. Automatically resets when the tab is closed.</dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd style="display: none; "> <dl> <div> <div> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div> </dl> <!-- RETURNS --> <h4 style="display: none; ">Returns</h4> <dl> <div style="display: none; "> <div> </div> </div> </dl> <!-- CALLBACK --> <div style="display: none; "> <div> <h4>Callback function</h4> <p> The callback <em>parameter</em> should specify a function that looks like this: </p> <p> If you specify the <em>callback</em> parameter, it should specify a function that looks like this: </p> <!-- Note: intentionally longer 80 columns --> <pre>function(<span>Type param1, Type param2</span>) <span class="subdued">{...}</span>;</pre> <dl> <div> <div> </div> </div> </dl> </div> </div> <!-- MIN_VERSION --> <p style="display: none; "> This function was added in version <b><span></span></b>. If you require this function, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </p> </div> <!-- /description --> </div><div class="apiItem"> <a name="method-setBadgeText"></a> <!-- method-anchor --> <h4>setBadgeText</h4> <div class="summary"><span style="display: none; ">void</span> <!-- Note: intentionally longer 80 columns --> <span>chrome.browserAction.setBadgeText</span>(<span class="null"><span style="display: none; ">, </span><span>object</span> <var><span>details</span></var></span>)</div> <div class="description"> <p class="todo" style="display: none; ">Undocumented.</p> <p>Sets the badge text for the browser action. The badge is displayed on top of the icon.</p> <!-- PARAMETERS --> <h4>Parameters</h4> <dl> <div> <div> <dt> <var>details</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional" style="display: none; ">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>object</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo"> Undocumented. </dd> <dd style="display: none; "> Description of this parameter from the json schema. </dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd> <dl> <div> <div> <dt> <var>text</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional" style="display: none; ">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>string</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo" style="display: none; "> Undocumented. </dd> <dd>Any number of characters can be passed, but only about four can fit in the space.</dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd style="display: none; "> <dl> <div> <div> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div><div> <div> <dt> <var>tabId</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>integer</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo" style="display: none; "> Undocumented. </dd> <dd>Limits the change to when a particular tab is selected. Automatically resets when the tab is closed.</dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd style="display: none; "> <dl> <div> <div> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div> </dl> <!-- RETURNS --> <h4 style="display: none; ">Returns</h4> <dl> <div style="display: none; "> <div> </div> </div> </dl> <!-- CALLBACK --> <div style="display: none; "> <div> <h4>Callback function</h4> <p> The callback <em>parameter</em> should specify a function that looks like this: </p> <p> If you specify the <em>callback</em> parameter, it should specify a function that looks like this: </p> <!-- Note: intentionally longer 80 columns --> <pre>function(<span>Type param1, Type param2</span>) <span class="subdued">{...}</span>;</pre> <dl> <div> <div> </div> </div> </dl> </div> </div> <!-- MIN_VERSION --> <p style="display: none; "> This function was added in version <b><span></span></b>. If you require this function, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </p> </div> <!-- /description --> </div><div class="apiItem"> <a name="method-setIcon"></a> <!-- method-anchor --> <h4>setIcon</h4> <div class="summary"><span style="display: none; ">void</span> <!-- Note: intentionally longer 80 columns --> <span>chrome.browserAction.setIcon</span>(<span class="null"><span style="display: none; ">, </span><span>object</span> <var><span>details</span></var></span>)</div> <div class="description"> <p class="todo" style="display: none; ">Undocumented.</p> <p>Sets the icon for the browser action. The icon can be specified either as the path to an image file or as the pixel data from a canvas element. Either the <b>path</b> or the <b>imageData</b> property must be specified.</p> <!-- PARAMETERS --> <h4>Parameters</h4> <dl> <div> <div> <dt> <var>details</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional" style="display: none; ">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>object</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo"> Undocumented. </dd> <dd style="display: none; "> Description of this parameter from the json schema. </dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd> <dl> <div> <div> <dt> <var>imageData</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>ImageData</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo" style="display: none; "> Undocumented. </dd> <dd>Pixel data for an image. Must be an ImageData object (for example, from a <code>canvas</code> element).</dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd> <dl> <div style="display: none; "> <div> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div><div> <div> <dt> <var>path</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>string</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo" style="display: none; "> Undocumented. </dd> <dd>Relative path to an image in the extension to show in the browser action.</dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd style="display: none; "> <dl> <div> <div> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div><div> <div> <dt> <var>tabId</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>integer</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo" style="display: none; "> Undocumented. </dd> <dd>Limits the change to when a particular tab is selected. Automatically resets when the tab is closed.</dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd style="display: none; "> <dl> <div> <div> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div> </dl> <!-- RETURNS --> <h4 style="display: none; ">Returns</h4> <dl> <div style="display: none; "> <div> </div> </div> </dl> <!-- CALLBACK --> <div style="display: none; "> <div> <h4>Callback function</h4> <p> The callback <em>parameter</em> should specify a function that looks like this: </p> <p> If you specify the <em>callback</em> parameter, it should specify a function that looks like this: </p> <!-- Note: intentionally longer 80 columns --> <pre>function(<span>Type param1, Type param2</span>) <span class="subdued">{...}</span>;</pre> <dl> <div> <div> </div> </div> </dl> </div> </div> <!-- MIN_VERSION --> <p style="display: none; "> This function was added in version <b><span></span></b>. If you require this function, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </p> </div> <!-- /description --> </div><div class="apiItem"> <a name="method-setPopup"></a> <!-- method-anchor --> <h4>setPopup</h4> <div class="summary"><span style="display: none; ">void</span> <!-- Note: intentionally longer 80 columns --> <span>chrome.browserAction.setPopup</span>(<span class="null"><span style="display: none; ">, </span><span>object</span> <var><span>details</span></var></span>)</div> <div class="description"> <p class="todo" style="display: none; ">Undocumented.</p> <p>Sets the html document to be opened as a popup when the user clicks on the browser action's icon.</p> <!-- PARAMETERS --> <h4>Parameters</h4> <dl> <div> <div> <dt> <var>details</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional" style="display: none; ">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>object</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo"> Undocumented. </dd> <dd style="display: none; "> Description of this parameter from the json schema. </dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd> <dl> <div> <div> <dt> <var>tabId</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>integer</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo" style="display: none; "> Undocumented. </dd> <dd>Limits the change to when a particular tab is selected. Automatically resets when the tab is closed.</dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd style="display: none; "> <dl> <div> <div> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div><div> <div> <dt> <var>popup</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional" style="display: none; ">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>string</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo" style="display: none; "> Undocumented. </dd> <dd>The html file to show in a popup. If set to the empty string (''), no popup is shown.</dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd style="display: none; "> <dl> <div> <div> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div> </dl> <!-- RETURNS --> <h4 style="display: none; ">Returns</h4> <dl> <div style="display: none; "> <div> </div> </div> </dl> <!-- CALLBACK --> <div style="display: none; "> <div> <h4>Callback function</h4> <p> The callback <em>parameter</em> should specify a function that looks like this: </p> <p> If you specify the <em>callback</em> parameter, it should specify a function that looks like this: </p> <!-- Note: intentionally longer 80 columns --> <pre>function(<span>Type param1, Type param2</span>) <span class="subdued">{...}</span>;</pre> <dl> <div> <div> </div> </div> </dl> </div> </div> <!-- MIN_VERSION --> <p> This function was added in version <b><span>5.0.316.0</span></b>. If you require this function, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </p> </div> <!-- /description --> </div><div class="apiItem"> <a name="method-setTitle"></a> <!-- method-anchor --> <h4>setTitle</h4> <div class="summary"><span style="display: none; ">void</span> <!-- Note: intentionally longer 80 columns --> <span>chrome.browserAction.setTitle</span>(<span class="null"><span style="display: none; ">, </span><span>object</span> <var><span>details</span></var></span>)</div> <div class="description"> <p class="todo" style="display: none; ">Undocumented.</p> <p>Sets the title of the browser action. This shows up in the tooltip.</p> <!-- PARAMETERS --> <h4>Parameters</h4> <dl> <div> <div> <dt> <var>details</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional" style="display: none; ">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>object</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo"> Undocumented. </dd> <dd style="display: none; "> Description of this parameter from the json schema. </dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd> <dl> <div> <div> <dt> <var>title</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional" style="display: none; ">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>string</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo" style="display: none; "> Undocumented. </dd> <dd>The string the browser action should display when moused over.</dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd style="display: none; "> <dl> <div> <div> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div><div> <div> <dt> <var>tabId</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span style="display: none; "> <a> Type</a> </span> <span> <span style="display: none; "> array of <span><span></span></span> </span> <span>integer</span> <span style="display: none; "></span> </span> </span> ) </div> </em> </dt> <dd class="todo" style="display: none; "> Undocumented. </dd> <dd>Limits the change to when a particular tab is selected. Automatically resets when the tab is closed.</dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd style="display: none; "> <dl> <div> <div> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div> </dl> <!-- RETURNS --> <h4 style="display: none; ">Returns</h4> <dl> <div style="display: none; "> <div> </div> </div> </dl> <!-- CALLBACK --> <div style="display: none; "> <div> <h4>Callback function</h4> <p> The callback <em>parameter</em> should specify a function that looks like this: </p> <p> If you specify the <em>callback</em> parameter, it should specify a function that looks like this: </p> <!-- Note: intentionally longer 80 columns --> <pre>function(<span>Type param1, Type param2</span>) <span class="subdued">{...}</span>;</pre> <dl> <div> <div> </div> </div> </dl> </div> </div> <!-- MIN_VERSION --> <p style="display: none; "> This function was added in version <b><span></span></b>. If you require this function, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </p> </div> <!-- /description --> </div> <!-- /apiItem --> </div> <!-- /apiGroup --> <!-- EVENTS --> <div id="eventsTemplate" class="apiGroup"> <a name="global-events"></a> <h3>Events</h3> <!-- iterates over all events --> <div class="apiItem"> <a name="event-onClicked"></a> <h4>onClicked</h4> <div class="summary"> <!-- Note: intentionally longer 80 columns --> <span class="subdued">chrome.browserAction.</span><span>onClicked</span><span class="subdued">.addListener</span>(function(<span>Tab tab</span>) <span class="subdued">{...}</span>); </div> <div class="description"> <p class="todo" style="display: none; ">Undocumented.</p> <p>Fired when a browser action icon is clicked. This event will not fire if the browser action has a popup.</p> <!-- PARAMETERS --> <div> <h4>Parameters</h4> <dl> <div> <div> <dt> <var>tab</var> <em> <!-- TYPE --> <div style="display:inline"> ( <span class="optional" style="display: none; ">optional</span> <span class="enum" style="display: none; ">enumerated</span> <span id="typeTemplate"> <span> <a href="tabs.html#type-Tab">Tab</a> </span> <span style="display: none; "> <span> array of <span><span></span></span> </span> <span>paramType</span> <span></span> </span> </span> ) </div> </em> </dt> <dd class="todo"> Undocumented. </dd> <dd style="display: none; "> Description of this parameter from the json schema. </dd> <dd style="display: none; "> This parameter was added in version <b><span></span></b>. You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> can ensure that your extension won't be run in an earlier browser version. </dd> <!-- OBJECT PROPERTIES --> <dd style="display: none; "> <dl> <div> <div> </div> </div> </dl> </dd> <!-- OBJECT METHODS --> <dd style="display: none; "> <div></div> </dd> <!-- OBJECT EVENT FIELDS --> <dd style="display: none; "> <div></div> </dd> <!-- FUNCTION PARAMETERS --> <dd style="display: none; "> <div></div> </dd> </div> </div> </dl> </div> </div> <!-- /decription --> </div> <!-- /apiItem --> </div> <!-- /apiGroup --> <!-- TYPES --> <div class="apiGroup" style="display: none; "> <a name="types"></a> <h3 id="types">Types</h3> <!-- iterates over all types --> <div class="apiItem"> <a></a> <h4>type name</h4> <div> </div> </div> <!-- /apiItem --> </div> <!-- /apiGroup --> </div> <!-- /apiPage --> </div> <!-- /gc-pagecontent --> </div> <!-- /g-section --> </div> <!-- /codesiteContent --> <div id="gc-footer" --=""> <div class="text"> <p> Except as otherwise <a href="http://code.google.com/policies.html#restrictions">noted</a>, the content of this page is licensed under the <a rel="license" href="http://creativecommons.org/licenses/by/3.0/">Creative Commons Attribution 3.0 License</a>, and code samples are licensed under the <a rel="license" href="http://code.google.com/google_bsd_license.html">BSD License</a>. </p> <p> ©2011 Google </p> <!-- begin analytics --> <script src="http://www.google-analytics.com/urchin.js" type="text/javascript"></script> <script src="http://www.google-analytics.com/ga.js" type="text/javascript"></script> <script type="text/javascript"> // chrome doc tracking try { var engdocs = _gat._getTracker("YT-10763712-2"); engdocs._trackPageview(); } catch(err) {} // code.google.com site-wide tracking try { _uacct="UA-18071-1"; _uanchor=1; _uff=0; urchinTracker(); } catch(e) {/* urchinTracker not available. */} </script> <!-- end analytics --> </div> </div> <!-- /gc-footer --> </div> <!-- /gc-container --> </body></html>