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| (Empty) | |
| 1 <html> |
| 2 <!-- |
| 3 This test checks the interaction between prerendering and the Plugin Power Saver |
| 4 feature. It expects: |
| 5 - The plugin is not loaded during prerender. |
| 6 - It is loaded (briefly) during the preroll of the plugin. |
| 7 - It is replaced by the power saver placeholder after the preroll is over. |
| 8 |
| 9 This test relies on the Pepper plugin (but not the placeholder) implementing |
| 10 the postMessage() function on the plugin object. |
| 11 --> |
| 12 <head> |
| 13 <title>Prerender Plugin Delay Loading</title> |
| 14 |
| 15 <script> |
| 16 // Make sure plugin was not loaded while prerendering. |
| 17 function DidPrerenderPass() { |
| 18 // |plugin| should be the blocked plugin placeholder, rather than the |
| 19 // test plugin. |
| 20 var plugin = window.document.getElementById('plugin'); |
| 21 return plugin.postMessage === undefined; |
| 22 } |
| 23 |
| 24 // Make sure the plugin briefly exists, then is replaced with a placeholder. |
| 25 function AwaitPluginPrerollAndPlaceholder() { |
| 26 var plugin = window.document.getElementById('plugin'); |
| 27 function handleEvent(event) { |
| 28 // We should eventually get a message indicating that the plugin has been |
| 29 // throttled and replaced with a static placeholder. |
| 30 if (event.data.isThrottled && event.data.isHiddenForPlaceholder) { |
| 31 plugin.removeEventListener('message', handleEvent); |
| 32 window.domAutomationController.send(true); |
| 33 } |
| 34 } |
| 35 |
| 36 plugin.addEventListener('message', handleEvent); |
| 37 |
| 38 // If postMessage is not defined, the plugin is still the initial placeholder. |
| 39 // When the real plugin loads, we will still get the initial power saver |
| 40 // status notifications. |
| 41 if (plugin.postMessage !== undefined) { |
| 42 plugin.postMessage('getPowerSaverStatus'); |
| 43 } |
| 44 } |
| 45 </script> |
| 46 |
| 47 </head> |
| 48 <body> |
| 49 |
| 50 <object id="plugin" type="application/x-ppapi-tests" height='100' width='100'> |
| 51 </object> |
| 52 |
| 53 </body> |
| 54 </html> |
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Chromium Code Reviews
Issue 1114623002:
Plugin Power Saver: Make PPS work well with prerendered pages. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master