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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /browser/base/content/test/forms/browser_selectpopup_width.js | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'browser/base/content/test/forms/browser_selectpopup_width.js')
-rw-r--r-- | browser/base/content/test/forms/browser_selectpopup_width.js | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/browser/base/content/test/forms/browser_selectpopup_width.js b/browser/base/content/test/forms/browser_selectpopup_width.js new file mode 100644 index 0000000000..d8f748fb18 --- /dev/null +++ b/browser/base/content/test/forms/browser_selectpopup_width.js @@ -0,0 +1,49 @@ +const PAGE = ` +<!doctype html> +<select style="width: 600px"> + <option>ABC</option> + <option>DEFG</option> +</select> +`; + +function tick() { + return new Promise(r => + requestAnimationFrame(() => requestAnimationFrame(r)) + ); +} + +add_task(async function () { + const url = "data:text/html," + encodeURI(PAGE); + await BrowserTestUtils.withNewTab( + { + gBrowser, + url, + }, + async function (browser) { + let popup = await openSelectPopup("click"); + let arrowSB = popup.shadowRoot.querySelector(".menupopup-arrowscrollbox"); + is( + arrowSB.getBoundingClientRect().width, + 600, + "Should be the right size" + ); + + // Trigger a layout change that would cause us to layout the popup again, + // and change our menulist to be zero-size so that the anchor rect + // codepath is used. We should still use the anchor rect to expand our + // size. + await tick(); + + popup.closest("menulist").style.width = "0"; + popup.style.minWidth = "2px"; + + await tick(); + + is( + arrowSB.getBoundingClientRect().width, + 600, + "Should be the right size" + ); + } + ); +}); |