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Pull theme picker keyboard code into main.js

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Most of the code in mod.rs should be code that really needs to have
the list of available themes inlined into it.
This commit is contained in:
Michael Howell 2020-10-30 14:27:00 -07:00
parent 90c7c634e3
commit 17b8ca952b
2 changed files with 59 additions and 51 deletions
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50
src/librustdoc/html/render/mod.rs
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@ -807,58 +807,8 @@ function handleThemeButtonsBlur(e) {{
}}
}}
function handleThemeKeyDown(e) {{
if (e.altKey || e.ctrlKey || e.metaKey || e.shiftKey) {{ return; }}
if (!themePicker.parentNode.contains(e.target)) {{ return; }}
var active = document.activeElement;
switch (e.key) {{
case "ArrowUp":
e.preventDefault();
if (active.previousElementSibling && e.target.id !== "theme-picker") {{
active.previousElementSibling.focus();
}} else {{
showThemeButtonState();
themes.lastElementChild.focus();
}}
break;
case "ArrowDown":
e.preventDefault();
if (active.nextElementSibling && e.target.id !== "theme-picker") {{
active.nextElementSibling.focus();
}} else {{
showThemeButtonState();
themes.firstElementChild.focus();
}}
break;
case "Enter":
case "Return":
case "Space":
if (e.target.id === "theme-picker" && themes.style.display === "none") {{
e.preventDefault();
showThemeButtonState();
themes.firstElementChild.focus();
}}
break;
case "Home":
e.preventDefault();
themes.firstElementChild.focus();
break;
case "End":
e.preventDefault();
themes.lastElementChild.focus();
break;
// The escape key is handled in main.js, instead of here, for two reasons:
//
// 1 Escape should close the menu, even if it's not focused.
// 2 The escape event handler is bound to both keydown and keypress, to work
// around browser inconsistencies. That sort of logic doesn't apply to the
// rest of these keybindings.
}}
}};
themePicker.onclick = switchThemeButtonState;
themePicker.onblur = handleThemeButtonsBlur;
document.addEventListener("keydown", handleThemeKeyDown);
{}.forEach(function(item) {{
var but = document.createElement("button");
but.textContent = item;