1<!-- BEGIN AUTHORED CONTENT --> 2<p id="classSummary"> 3Use the <code>experimental.webInspector.panels</code> module to integrate your 4extension into Developer Tools window UI: create your own panels, access 5existing panels and add sidebars. 6</p><p> 7See <a href="experimental.webInspector.html">WebInspector API summary</a> for 8general introduction to using WebInspector API</a>. 9</p> 10 11<h2>Notes</h2> 12 13<p> 14Each extension panel and sidebar is displayed as a separate HTML page. All 15extension pages displayed in the Developer Tools window have access to all 16modules in <code>experimental.webInspector</code> API, as well as to 17<a href="extension.html">chrome.extension</a> API. Other extension APIs are not 18available to the pages within Developer Tools window, but you may invoke them 19by sending a request to the background page of your extension, similarly to how 20it's done in the <a href="overview.html#contentScripts">content scripts</a>. 21</p> 22 23<h2 id="overview-examples">Examples</h2> 24<p>The following code adds a panel contained in <code>Panel.html</code>, 25represented by <code>FontPicker.png</code> on the Developer Tools toolbar 26and labeled as <em>Font Picker</em>:</p> 27 28<pre> 29webInspector.panels.create("Font Picker", "FontPicker.png", "Panel.html"); 30</pre> 31<p>The following code adds a sidebar pane contained in 32<code>Sidebar.html</code> and titled <em>Font Properties</em> to the Elements 33panel, then sets its height to <code>8ex</code>: 34<pre> 35webInspector.panels.elements.createSidebarPane("Font Properties", "Sidebar.html", 36 function(sidebar) { 37 sidebar.setHeight("8ex"); 38 } 39})); 40</pre> 41<p> 42This screenshot demonstrates the effect the above examples would have on 43Developer Tools window: 44 45<img src="images/devtools-panels.png" 46 style="margin-left: 20px" 47 width="686" height="289" 48 alt="Extension icon panel on DevTools toolbar" /> 49</p> 50<!-- END AUTHORED CONTENT --> 51