| <html> |
| <head> |
| <script src="../../../resources/js-test-pre.js"></script> |
| <script src="resources/webgl-test.js"></script> |
| <script src="resources/webgl-test-utils.js"></script> |
| <script> |
| |
| var evt; |
| var canvas; |
| var context; |
| var extension; |
| |
| function createNewCanvas() |
| { |
| canvas = document.createElement("canvas"); |
| canvas.width = 1; |
| canvas.height = 1; |
| |
| context = WebGLTestUtils.create3DContext(canvas); |
| extension = context.getExtension("WEBGL_lose_context"); |
| if (!extension) { |
| debug("Could not find the WEBGL_lose_context extension."); |
| return; |
| } |
| } |
| |
| function runTest1() |
| { |
| if (window.initNonKhronosFramework) |
| window.initNonKhronosFramework(true); |
| createNewCanvas(); |
| canvas.addEventListener("webglcontextlost", function(e) { |
| evt = e; |
| debug("Test that the event passed to a listener of webglcontextlost is a WebGLContextEvent.") |
| shouldBe("evt.toString()", "'[object WebGLContextEvent]'"); |
| shouldBe("evt.statusMessage", "''"); |
| // Start the next test when event dispatch has finished. |
| setTimeout(function() { |
| runTest2(); |
| }, 0); |
| }, false); |
| extension.loseContext(); |
| } |
| |
| function runTest2() |
| { |
| createNewCanvas(); |
| canvas.addEventListener("webglcontextlost", function(e) { |
| e.preventDefault(); |
| // Restore the context after event dispatch has finished. |
| setTimeout(function() { |
| // Because context restoration is specified as being asynchronous, we can not verify |
| // that the GL error state is empty here. |
| extension.restoreContext(); |
| }, 0); |
| }, false); |
| canvas.addEventListener("webglcontextrestored", function(e) { |
| evt = e; |
| shouldBe("context.getError()", "context.NO_ERROR"); |
| debug("Test that the event passed to a listener of webglcontextrestored is a WebGLContextEvent.") |
| shouldBe("evt.toString()", "'[object WebGLContextEvent]'"); |
| shouldBe("evt.statusMessage", "''"); |
| |
| setTimeout(finish, 0); |
| }, false); |
| extension.loseContext(); |
| } |
| |
| function finish() { |
| var epilogue = document.createElement("script"); |
| epilogue.onload = function() { |
| if (window.nonKhronosFrameworkNotifyDone) |
| window.nonKhronosFrameworkNotifyDone(); |
| }; |
| epilogue.src = "../../../resources/js-test-post.js"; |
| document.body.appendChild(epilogue); |
| } |
| |
| </script> |
| |
| </head> |
| <body onload="runTest1()"> |
| <div id="description"></div> |
| <div id="console"></div> |
| <canvas id="canvas"> |
| </body> |
| </html> |
