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|  | 1 <!DOCTYPE html> | 
|  | 2 <html> | 
|  | 3 <body> | 
|  | 4 <script src="../resources/js-test.js"></script> | 
|  | 5 <script> | 
|  | 6 description("Validates that screen orientation can be unlocked"); | 
|  | 7 window.jsTestIsAsync = true; | 
|  | 8 | 
|  | 9 var orientationChangeEventCount = 0; | 
|  | 10 var locked = false; | 
|  | 11 | 
|  | 12 function checkNoOrientationChangeThenContinue() { | 
|  | 13     shouldBeEqualToString("screen.orientation", "portrait-primary"); | 
|  | 14     shouldBe("orientationChangeEventCount", "0"); | 
|  | 15     debug("Unlocking orientation..."); | 
|  | 16     locked = false; | 
|  | 17     screen.unlockOrientation(); | 
|  | 18 } | 
|  | 19 | 
|  | 20 function completeTest() { | 
|  | 21     screen.removeEventListener("orientationchange", onOrientationChangeEvent); | 
|  | 22     internals.setScreenOrientation(document, "portrait-primary"); | 
|  | 23     finishJSTest(); | 
|  | 24 } | 
|  | 25 | 
|  | 26 var testEvent; | 
|  | 27 function onOrientationChangeEvent(ev) { | 
|  | 28     ++orientationChangeEventCount; | 
|  | 29     testEvent = ev; | 
|  | 30     debug("Received an 'orientationchange' event."); | 
|  | 31     shouldBeFalse('locked'); | 
|  | 32     shouldBe("orientationChangeEventCount", "1"); | 
|  | 33     shouldBeEqualToString("testEvent.type", "orientationchange"); | 
|  | 34     shouldBeEqualToString("screen.orientation", "landscape-primary"); | 
|  | 35     completeTest(); | 
|  | 36 } | 
|  | 37 | 
|  | 38 function setScreenOrientationtoLandscapePrimary() { | 
|  | 39     debug("Faking device screen orientation change to 'landscape-primary'..."); | 
|  | 40     internals.setScreenOrientation(document, "landscape-primary"); | 
|  | 41     setTimeout(checkNoOrientationChangeThenContinue, 0); | 
|  | 42 } | 
|  | 43 | 
|  | 44 internals.setScreenOrientationClientMock(document); | 
|  | 45 screen.addEventListener("orientationchange", onOrientationChangeEvent); | 
|  | 46 | 
|  | 47 shouldBeEqualToString("screen.orientation", "portrait-primary"); | 
|  | 48 debug("locking orientation to 'portrait-primary'."); | 
|  | 49 locked = true; | 
|  | 50 shouldBeTrue("screen.lockOrientation('portrait-primary')"); | 
|  | 51 // Doing this asynchronously as lockOrientation() is asynchronous. | 
|  | 52 setTimeout(setScreenOrientationtoLandscapePrimary, 0); | 
|  | 53 </script> | 
|  | 54 </body> | 
|  | 55 </html> | 
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