<!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><a href="browserAction.html">Browser Actions</a></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 class="leftNavSelected">Options Pages</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 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<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">Options</h1> </div> <!-- TABLE OF CONTENTS --> <div id="toc"> <h2>Contents</h2> <ol> <li> <a href="#H2-0">Step 1: Declare your options page in the manifest</a> <ol> <li style="display: none; "> <a>h3Name</a> </li> </ol> </li><li> <a href="#H2-1">Step 2: Write your options page</a> <ol> <li style="display: none; "> <a>h3Name</a> </li> </ol> </li><li> <a href="#H2-2">Important notes</a> <ol> <li style="display: none; "> <a>h3Name</a> </li> </ol> </li> <li style="display: none; "> <a href="#apiReference">API reference</a> <ol> <li> <a href="#properties">Properties</a> <ol> <li> <a href="#property-anchor">propertyName</a> </li> </ol> </li> <li> <a>Methods</a> <ol> <li> <a href="#method-anchor">methodName</a> </li> </ol> </li> <li> <a>Events</a> <ol> <li> <a href="#event-anchor">eventName</a> </li> </ol> </li> <li> <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">Options</div> <div id="pageData-showTOC" class="pageData">true</div> <p>To allow users to customize the behavior of your extension, you may wish to provide an options page. If you do, a link to it will be provided from the extensions management page at chrome://extensions. Clicking the Options link opens a new tab pointing at your options page. </p><a name="H2-0"></a><h2>Step 1: Declare your options page in the manifest</h2> <pre>{ "name": "My extension", ... <b>"options_page": "options.html"</b>, ... }</pre> <a name="H2-1"></a><h2>Step 2: Write your options page</h2> Here is an example options page: <pre><html> <head><title>My Test Extension Options</title></head> <script type="text/javascript"> // Saves options to localStorage. function save_options() { var select = document.getElementById("color"); var color = select.children[select.selectedIndex].value; localStorage["favorite_color"] = color; // Update status to let user know options were saved. var status = document.getElementById("status"); status.innerHTML = "Options Saved."; setTimeout(function() { status.innerHTML = ""; }, 750); } // Restores select box state to saved value from localStorage. function restore_options() { var favorite = localStorage["favorite_color"]; if (!favorite) { return; } var select = document.getElementById("color"); for (var i = 0; i < select.children.length; i++) { var child = select.children[i]; if (child.value == favorite) { child.selected = "true"; break; } } } </script> <body onload="restore_options()"> Favorite Color: <select id="color"> <option value="red">red</option> <option value="green">green</option> <option value="blue">blue</option> <option value="yellow">yellow</option> </select> <br> <button onclick="save_options()">Save</button> </body> </html> </pre> <a name="H2-2"></a><h2>Important notes</h2> <ul> <li>This feature is checked in to the trunk and should land in official builds sometime <b>after</b> version 4.0.222.x.</li> <li>We plan on providing some default css styles to encourage a consistent look across different extensions' options pages. You can star <a href="http://crbug.com/25317">crbug.com/25317</a> to be notified of updates.</li> </ul> </div> <!-- API PAGE --> <div class="apiPage" style="display: none; "> <a name="apiReference"></a> <h2>API reference: chrome.apiname </h2> <!-- PROPERTIES --> <div class="apiGroup"> <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></a> <h3>Methods</h3> <!-- iterates over all functions --> <div class="apiItem"> <a></a> <!-- method-anchor --> <h4>method name</h4> <div class="summary"><span>void</span> <!-- Note: intentionally longer 80 columns --> <span>chrome.module.methodName</span>(<span><span>, </span><span></span> <var><span></span></var></span>)</div> <div class="description"> <p class="todo">Undocumented.</p> <p> A description from the json schema def of the function goes here. </p> <!-- PARAMETERS --> <h4>Parameters</h4> <dl> <div> <div> </div> </div> </dl> <!-- RETURNS --> <h4>Returns</h4> <dl> <div> <div> </div> </div> </dl> <!-- CALLBACK --> <div> <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></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></a> <h3>Events</h3> <!-- iterates over all events --> <div class="apiItem"> <a></a> <h4>event name</h4> <div class="summary"> <!-- Note: intentionally longer 80 columns --> <span class="subdued">chrome.bookmarks</span><span>onEvent</span><span class="subdued">.addListener</span>(function(<span>Type param1, Type param2</span>) <span class="subdued">{...}</span>); </div> <div class="description"> <p class="todo">Undocumented.</p> <p> A description from the json schema def of the event goes here. </p> <!-- PARAMETERS --> <div> <h4>Parameters</h4> <dl> <div> <div> </div> </div> </dl> </div> </div> <!-- /decription --> </div> <!-- /apiItem --> </div> <!-- /apiGroup --> <!-- TYPES --> <div class="apiGroup"> <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>