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| 1 <!-- BEGIN AUTHORED CONTENT --> |
| 2 <p> |
| 3 Use page actions to put icons inside the address bar. |
| 4 Page actions represent actions |
| 5 that can be taken on the current page, |
| 6 but that aren't applicable to all pages. |
| 7 Some examples: |
| 8 </p> |
| 9 <ul> |
| 10 <li> Subscribe to this page's RSS feed </li> |
| 11 <li> Make a slideshow out of this page's photos </li> |
| 12 </ul> |
| 13 <p> |
| 14 The RSS icon in the following screenshot |
| 15 represents a page action |
| 16 that lets you subscribe to |
| 17 the RSS feed for the current page. |
| 18 </p> |
| 19 <img src="/static/images/page-action.png" |
| 20 width="361" height="79" /> |
| 21 <p> |
| 22 If you want the extension's icon to always be visible, |
| 23 use a <a href="browserAction.html">browser action</a> instead. |
| 24 </p> |
| 25 <p class="caution"> |
| 26 <strong>Note:</strong> |
| 27 Packaged apps cannot use page actions. |
| 28 </p> |
| 29 <h2 id="manifest">Manifest</h2> |
| 30 <p> |
| 31 Register your page action in the |
| 32 <a href="manifest.html">extension manifest</a> |
| 33 like this: |
| 34 </p> |
| 35 <pre>{ |
| 36 "name": "My extension", |
| 37 ... |
| 38 <b>"page_action": { |
| 39 "default_icon": "icons/foo.png", <em>// optional</em> |
| 40 "default_title": "Do action", <em>// optional; shown in tooltip</em> |
| 41 "default_popup": "popup.html" <em>// optional</em> |
| 42 }</b>, |
| 43 ... |
| 44 }</pre> |
| 45 <h2 id="ui">Parts of the UI</h2> |
| 46 <p> |
| 47 Like browser actions, |
| 48 page actions can have an icon, |
| 49 a tooltip, and popup; |
| 50 they can't have badges, however. |
| 51 In addition, page actions can appear and disappear. |
| 52 You can find information about icons, tooltips, and popups |
| 53 by reading about the |
| 54 <a href="browserAction.html#ui">browser action UI</a>. |
| 55 </p> |
| 56 <p> |
| 57 You make a page action appear and disappear using the |
| 58 <a href="#method-show">show()</a> and |
| 59 <a href="#method-hide">hide()</a> methods, respectively. |
| 60 By default, a page action is hidden. |
| 61 When you show it, you specify the tab |
| 62 in which the icon should appear. |
| 63 The icon remains visible |
| 64 until the tab is closed |
| 65 or starts displaying a different URL |
| 66 (because the user clicks a link, for example). |
| 67 </p> |
| 68 <!-- [PENDING: We should discuss how tabs and page actions are related. All met
hods take a tab ID argument. How do you get that tab ID? What's the usual way
of arranging the code that monitors pages? Point to examples.] --> |
| 69 <h2 id="tips">Tips</h2> |
| 70 <p>For the best visual impact, |
| 71 follow these guidelines:</p> |
| 72 <ul> |
| 73 <li><b>Do</b> use page actions |
| 74 for features that make sense |
| 75 for only a few pages. |
| 76 <li><b>Don't</b> use page actions |
| 77 for features that make sense |
| 78 for most pages. |
| 79 Use <a href="browserAction.html">browser actions</a> instead. |
| 80 <li><b>Don't</b> constantly animate your icon. |
| 81 That's just annoying. |
| 82 </ul> |
| 83 <h2 id="examples"> Examples </h2> |
| 84 <p> |
| 85 You can find simple examples of using page actions in the |
| 86 <a href="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/common/extension
s/docs/examples/api/pageAction/">examples/api/pageAction</a> |
| 87 directory. |
| 88 For other examples and for help in viewing the source code, see |
| 89 <a href="samples.html">Samples</a>. |
| 90 </p> |
| 91 <!-- END AUTHORED CONTENT --> |
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