| Index: LayoutTests/fast/media/media-query-list-listener.html
|
| diff --git a/LayoutTests/fast/media/media-query-list-listener.html b/LayoutTests/fast/media/media-query-list-listener.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..fb348f3ca8b9136e4b8cc36abe3f06f6e3d7ef80
|
| --- /dev/null
|
| +++ b/LayoutTests/fast/media/media-query-list-listener.html
|
| @@ -0,0 +1,52 @@
|
| +<!DOCTYPE html>
|
| +<script src="../../resources/js-test.js"></script>
|
| +
|
| +<div id="sandbox"></div>
|
| +
|
| +<script>
|
| + description("Media query listeners should fire on changes to matches status.");
|
| +
|
| + if (window.testRunner)
|
| + testRunner.dumpAsText();
|
| +
|
| + var sandbox = document.getElementById("sandbox");
|
| + var iframe = document.createElement("iframe");
|
| + sandbox.appendChild(iframe);
|
| +
|
| + var matchMedia = iframe.contentWindow.matchMedia;
|
| + var mediaList = matchMedia("(max-width: 100px)");
|
| + var expectedValue = "";
|
| +
|
| + function listener(list) {
|
| + window.mediaListArgument = list;
|
| + shouldBe("mediaList", "mediaListArgument");
|
| + shouldBe("mediaList.matches", expectedValue);
|
| + }
|
| +
|
| + mediaList.addListener(listener);
|
| +
|
| + shouldBe("mediaList.matches", "true");
|
| +
|
| + // FIXME: You shouldn't need to touch offsetTop to force these updates.
|
| +
|
| + // Should fire.
|
| + iframe.style.width = "200px";
|
| + expectedValue = "false";
|
| + iframe.offsetTop;
|
| +
|
| + // Should not fire.
|
| + iframe.style.width = "250px";
|
| + expectedValue = "false";
|
| + iframe.offsetTop;
|
| +
|
| + // Should fire.
|
| + iframe.style.width = "80px";
|
| + expectedValue = "true";
|
| + iframe.offsetTop;
|
| +
|
| + // Should not fire.
|
| + mediaList.removeListener(listener);
|
| + iframe.style.width = "200px";
|
| + iframe.offsetTop;
|
| + shouldBe("mediaList.matches", "false");
|
| +</script>
|
|
|
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