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rustdoc: put focus on the help link when opening it from keyboard

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This prevents some strange blur-event-related bugs with the "?" command
by ensuring that the focus remains in the same spot when the settings
area closes.
This commit is contained in:
Michael Howell 2023-01-18 11:41:34 -07:00
parent 1f72129ffe
commit deb05758c8
2 changed files with 12 additions and 0 deletions
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3
src/librustdoc/html/static/js/main.js
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@ -1082,6 +1082,9 @@ function loadCss(cssUrl) {
* Show the help popup menu.
*/
function showHelp() {
// Prevent `blur` events from being dispatched as a result of closing
// other modals.
getHelpButton().querySelector("a").focus();
const menu = getHelpMenu(true);
if (menu.style.display === "none") {
window.hideAllModals();

9
tests/rustdoc-gui/settings.goml
View file

@ -203,6 +203,15 @@ press-key: "?"
wait-for-css: ("#help-button .popover", {"display": "block"})
assert-css: ("#settings-menu .popover", {"display": "none"})
// Now switch back to the settings popover, and make sure the keyboard
// shortcut works when a check box is selected.
click: "#settings-menu > a"
wait-for-css: ("#settings-menu .popover", {"display": "block"})
focus: "#auto-hide-large-items"
press-key: "?"
wait-for-css: ("#settings-menu .popover", {"display": "none"})
wait-for-css: ("#help-button .popover", {"display": "block"})
// Now we go to the settings page to check that the CSS is loaded as expected.
goto: "file://" + |DOC_PATH| + "/settings.html"
wait-for: "#settings"