/**
 * Make code-input elements resize automatically and fit their content live using CSS
 * classes, optionally between a minimum and maximum size specified using CSS variables.
 *
 * Files: autogrow.css
 */

/* Inspired greatly by https://css-tricks.com/the-cleanest-trick-for-autogrowing-textareas/
and the fact code-input.js already implements the article's main structure. */

code-input.code-input_autogrow_height {
    --code-input_autogrow_min-height: 0px;
    --code-input_autogrow_max-height: calc(infinity * 1px);

    /* See FindAndReplace/GoToLine dialog visibility */
    --code-input_autogrow_internal-min-height: 0px;
    --code-input_autogrow_true-min-height: max(var(--code-input_autogrow_min-height), var(--code-input_autogrow_internal-min-height));

    height: max-content;
    max-height: var(--code-input_autogrow_max-height);
}
code-input.code-input_autogrow_height textarea {
    height: calc(var(--code-input_autogrow_true-min-height) - var(--padding-top, 16px) - var(--padding-bottom, 16px))!important; /* So minimum height possible while containing highlighted code */
    min-height: max(var(--code-input_synced-height), calc(100% - var(--padding-top, 16px) - var(--padding-bottom, 16px)));
}
code-input.code-input_autogrow_height > pre,
code-input.code-input_autogrow_height > pre code {
    min-height: calc(var(--code-input_autogrow_true-min-height) - var(--padding-top, 16px) - var(--padding-bottom, 16px));
}

code-input.code-input_autogrow_width {
    --code-input_autogrow_min-width: 100px;
    --code-input_autogrow_max-width: 100%;

    /* See FindAndReplace/GoToLine dialog visibility */
    --code-input_autogrow_internal-min-width: 0px;
    --code-input_autogrow_true-min-width: max(var(--code-input_autogrow_min-width), var(--code-input_autogrow_internal-min-width));

    width: max-content; /* Using unset rather than max-content makes always 100% width. */
    max-width: var(--code-input_autogrow_max-width);
}
code-input.code-input_autogrow_width textarea {
    width: calc(var(--code-input_autogrow_true-min-width) - var(--padding-left, 16px) - var(--padding-right, 16px))!important; /* So minimum width possible while containing highlighted code */
    min-width: max(var(--code-input_synced-width), calc(100% - var(--padding-left, 16px) - var(--padding-right, 16px)));
}
code-input.code-input_autogrow_width pre code,
code-input.code-input_autogrow_width pre {
    min-width: calc(var(--code-input_autogrow_true-min-width) - var(--padding-left, 16px) - var(--padding-right, 16px));
}

/* FindAndReplace / GoToLine dialog visibility */
code-input.code-input_autogrow_width:has(.code-input_go-to-line_dialog:not(.code-input_go-to-line_hidden-dialog)) {
    --code-input_autogrow_internal-min-width: 300px;
}
code-input.code-input_autogrow_height:has(.code-input_go-to-line_dialog:not(.code-input_go-to-line_hidden-dialog)) {
    --code-input_autogrow_internal-min-height: 150px;
}
code-input.code-input_autogrow_width:has(.code-input_find-and-replace_dialog:not(.code-input_find-and-replace_hidden-dialog)) {
    --code-input_autogrow_internal-min-width: 500px;
}
code-input.code-input_autogrow_height:has(.code-input_find-and-replace_dialog:not(.code-input_find-and-replace_hidden-dialog)) {
    --code-input_autogrow_internal-min-height: 170px;
}

/* Autogrow doesn't work with fallback textarea (since its functioning depends on
synchronisation to pre code element). Stick to the minimum size. */

/* At least one line high, leave space for no-JS instructions */
code-input.code-input_autogrow_height:has(textarea[data-code-input-fallback]) {
    --code-input_autogrow_internal-min-height: calc(4em + var(--padding-top, 16px) + var(--padding-bottom, 16px)); /* For browsers that don't support 1lh */
    --code-input_autogrow_internal-min-height: calc(1lh + 2em + var(--padding-top, 16px) + var(--padding-bottom, 16px)); /* So minimum height possible while containing highlighted code */
    height: var(--code-input_autogrow_true-min-height);
}
code-input textarea[data-code-input-fallback] {
    height: calc(var(--code-input_autogrow_true-min-height) - var(--padding-top, 16px) - var(--padding-bottom, 16px) - 2em)!important; /* So minimum height possible while containing highlighted code */
    min-height: calc(100% - var(--padding-top, 16px) - var(--padding-bottom, 16px) - 2em);
}