/*
 * noVNC general input element CSS
 * Copyright (C) 2025 The noVNC authors
 * noVNC is licensed under the MPL 2.0 (see LICENSE.txt)
 * This file is licensed under the 2-Clause BSD license (see LICENSE.txt).
 */

/*
 * Common for all inputs
 */
:root {
    --input-xpadding: 1em;
}

input, input::file-selector-button, button, select, textarea {
    /* Respect standard font settings */
    font: inherit;

    /* Disable default rendering */
    appearance: none;

    padding: 0.5em var(--input-xpadding);
    border: 1px solid var(--novnc-lightgrey);
    border-radius: 6px;
}

/*
 * Buttons
 */
input[type=button],
input[type=color],
input[type=image],
input[type=reset],
input[type=submit],
input::file-selector-button,
button,
select {
    border-bottom-width: 2px;

    /* This avoids it jumping around when :active */
    vertical-align: middle;
    margin-top: 0;
    color: black;
    font-weight: bold;
    background-color: var(--novnc-buttongrey);

    /* Disable Chrome's touch tap highlight */
    -webkit-tap-highlight-color: transparent;
}

/*
 * Select dropdowns
 */
select {
    --select-arrow: url('data:image/svg+xml;utf8, \
        <svg width="11" height="6" version="1.1" viewBox="0 0 11 6" \
             xmlns="http://www.w3.org/2000/svg"> \
            <path d="m10.5.5-5 5-5-5" fill="none" \
                  stroke="black" stroke-width="1.5" \
                  stroke-linecap="round" stroke-linejoin="round"/> \
        </svg>');

    /* FIXME: A bug in Firefox, requires a workaround for the background:
              https://bugzilla.mozilla.org/show_bug.cgi?id=1810958 */
    /* The dropdown list will show the select element's background above and
       below the options in Firefox. We want the entire dropdown to be white. */
    background-color: white;
    /* However, we don't want the select element to actually show a white
       background, so let's place a gradient above it with the color we want. */
    --grey-background: linear-gradient(var(--novnc-buttongrey) 100%,
                                       transparent);
    background-image:
        var(--select-arrow),
        var(--grey-background);
    background-position: calc(100% - var(--input-xpadding)), left top, left top;
    background-repeat: no-repeat;
    padding-right: calc(2*var(--input-xpadding) + 11px);
}
/* FIXME: :active isn't set when the <select> is opened in Firefox:
          https://bugzilla.mozilla.org/show_bug.cgi?id=1805406 */
select:active {
    /* Rotated arrow */
    background-image: url('data:image/svg+xml;utf8, \
        <svg width="11" height="6" version="1.1" viewBox="0 0 11 6" \
             xmlns="http://www.w3.org/2000/svg" transform="rotate(180)"> \
            <path d="m10.5.5-5 5-5-5" fill="none" \
                  stroke="black" stroke-width="1.5" \
                  stroke-linecap="round" stroke-linejoin="round"/> \
        </svg>'),
        var(--grey-background);
}
option {
    /* Prevent Chrome from inheriting background-color from the <select> */
    background-color: white;
    color: black;
    font-weight: normal;
}

/*
 * Checkboxes
 */
input[type=checkbox] {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    background-color: white;
    background-image: unset;
    border: 1px solid dimgrey;
    border-radius: 3px;
    width: 13px;
    height: 13px;
    padding: 0;
    margin-right: 6px;
    vertical-align: bottom;
    transition: 0.2s background-color linear;
}
input[type=checkbox]:checked {
    background-color: var(--novnc-blue);
    border-color: var(--novnc-blue);
}
input[type=checkbox]:checked::after {
    content: "";
    display: block; /* width & height doesn't work on inline elements */
    width: 3px;
    height: 7px;
    border: 1px solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(40deg) translateY(-1px);
}

/*
 * Radiobuttons
 */
input[type=radio] {
    border-radius: 50%;
    border: 1px solid dimgrey;
    width: 12px;
    height: 12px;
    padding: 0;
    margin-right: 6px;
    transition: 0.2s border linear;
}
input[type=radio]:checked {
    border: 6px solid var(--novnc-blue);
}

/*
 * Range sliders
 */
input[type=range] {
    border: unset;
    border-radius: 3px;
    height: 20px;
    padding: 0;
    background: transparent;
}
/* -webkit-slider.. & -moz-range.. cant be in selector lists:
   https://bugs.chromium.org/p/chromium/issues/detail?id=1154623 */
input[type=range]::-webkit-slider-runnable-track {
    background-color: var(--novnc-blue);
    height: 6px;
    border-radius: 3px;
}
input[type=range]::-moz-range-track {
    background-color: var(--novnc-blue);
    height: 6px;
    border-radius: 3px;
}
input[type=range]::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 20px;
    border-radius: 6px;
    background-color: white;
    border: 1px solid dimgray;
    margin-top: -7px;
}
input[type=range]::-moz-range-thumb {
    appearance: none;
    width: 18px;
    height: 20px;
    border-radius: 6px;
    background-color: white;
    border: 1px solid dimgray;
    margin-top: -7px;
}

/*
 * File choosers
 */
input[type=file] {
    background-image: none;
    border: none;
}
input::file-selector-button {
    margin-right: 6px;
}

/*
 * Hover
 */
input[type=button]:hover,
input[type=color]:hover,
input[type=image]:hover,
input[type=reset]:hover,
input[type=submit]:hover,
input::file-selector-button:hover,
button:hover {
    background-color: var(--novnc-lightgrey);
}
select:hover {
    background-image:
        var(--select-arrow),
        linear-gradient(var(--novnc-lightgrey) 100%,
                        transparent);
}
@media (any-pointer: coarse) {
    /* We don't want a hover style after touch input */
    input[type=button]:hover,
    input[type=color]:hover,
    input[type=image]:hover,
    input[type=reset]:hover,
    input[type=submit]:hover,
    input::file-selector-button:hover,
    button:hover {
        background-color: var(--novnc-buttongrey);
    }
    select:hover {
        background-image:
            var(--select-arrow),
            var(--grey-background);
    }
}

/*
 * Active (clicked)
 */
input[type=button]:active,
input[type=color]:active,
input[type=image]:active,
input[type=reset]:active,
input[type=submit]:active,
input::file-selector-button:active,
button:active,
select:active {
    border-bottom-width: 1px;
    margin-top: 1px;
}

/*
 * Focus (tab)
 */
input:focus-visible,
input:focus-visible::file-selector-button,
button:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--novnc-lightblue);
    outline-offset: 1px;
}
input[type=file]:focus-visible {
    outline: none; /* We outline the button instead of the entire element */
}

/*
 * Disabled
 */
input:disabled,
input:disabled::file-selector-button,
button:disabled,
select:disabled,
textarea:disabled {
    opacity: 0.4;
}
input[type=button]:disabled,
input[type=color]:disabled,
input[type=image]:disabled,
input[type=reset]:disabled,
input[type=submit]:disabled,
input:disabled::file-selector-button,
button:disabled,
select:disabled {
    background-color: var(--novnc-buttongrey);
    border-bottom-width: 2px;
    margin-top: 0;
}
input[type=file]:disabled {
    background-image: none;
}
select:disabled {
    background-image:
        var(--select-arrow),
        var(--grey-background);
}
input[type=image]:disabled {
    /* See Firefox bug:
       https://bugzilla.mozilla.org/show_bug.cgi?id=1798304 */
    cursor: default;
}