/*
 * Copyright (c) 2003-2024, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */

@import "@ckeditor/ckeditor5-ui/theme/mixins/_dir.css";
@import "../../../mixins/_rounded.css";

:root {
	--ck-labeled-field-view-transition: .1s cubic-bezier(0, 0, 0.24, 0.95);
	--ck-labeled-field-empty-unfocused-max-width: 100% - 2 * var(--ck-spacing-medium);
	--ck-labeled-field-label-default-position-x: var(--ck-spacing-medium);
	--ck-labeled-field-label-default-position-y: calc(0.6 * var(--ck-font-size-base));
	--ck-color-labeled-field-label-background: var(--ck-color-base-background);
}

.ck.ck-labeled-field-view {
	@mixin ck-rounded-corners;

	& > .ck.ck-labeled-field-view__input-wrapper {
		width: 100%;

		& > .ck.ck-label {
			top: 0px;

			@mixin ck-dir ltr {
				left: 0px;
				transform-origin: 0 0;
				/* By default, display the label scaled down above the field. */
				transform: translate(var(--ck-spacing-medium), -6px) scale(.75);
			}

			@mixin ck-dir rtl {
				right: 0px;
				transform-origin: 100% 0;
				transform: translate(calc(-1 * var(--ck-spacing-medium)), -6px) scale(.75);
			}

			pointer-events: none;

			background: var(--ck-color-labeled-field-label-background);
			padding: 0 calc(.5 * var(--ck-font-size-tiny));
			line-height: initial;
			font-weight: normal;

			/* Prevent overflow when the label is longer than the input */
			text-overflow: ellipsis;
			overflow: hidden;

			max-width: 100%;

			transition:
				transform var(--ck-labeled-field-view-transition),
				padding var(--ck-labeled-field-view-transition),
				background var(--ck-labeled-field-view-transition);

			@media (prefers-reduced-motion: reduce) {
				transition: none;
			}
		}
	}

	&.ck-error {
		& > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label {
			color: var(--ck-color-base-error);
		}

		& .ck-input:not([readonly]) + .ck.ck-label {
			color: var(--ck-color-base-error);
		}
	}

	& .ck-labeled-field-view__status {
		font-size: var(--ck-font-size-small);
		margin-top: var(--ck-spacing-small);

		/* Let the info wrap to the next line to avoid stretching the layout horizontally.
		The status could be very long. */
		white-space: normal;

		&.ck-labeled-field-view__status_error {
			color: var(--ck-color-base-error);
		}
	}

	/* Disabled fields and fields that have no focus should fade out. */
	&.ck-disabled > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label,
	&.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused) > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label {
		color: var(--ck-color-input-disabled-text);
	}

	/* Fields that are disabled or not focused and without a placeholder should have full-sized labels. */
	/* stylelint-disable-next-line no-descending-specificity */
	&.ck-disabled.ck-labeled-field-view_empty:not(.ck-labeled-field-view_placeholder) > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label,
	&.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder):not(.ck-error) > .ck.ck-labeled-field-view__input-wrapper > .ck.ck-label {
		@mixin ck-dir ltr {
			transform: translate(var(--ck-labeled-field-label-default-position-x), var(--ck-labeled-field-label-default-position-y)) scale(1);
		}

		@mixin ck-dir rtl {
			transform: translate(calc(-1 * var(--ck-labeled-field-label-default-position-x)), var(--ck-labeled-field-label-default-position-y)) scale(1);
		}

		/* Compensate for the default translate position. */
		max-width: calc(var(--ck-labeled-field-empty-unfocused-max-width));

		background: transparent;
		padding: 0;
	}

	/*------ DropdownView integration ----------------------------------------------------------------------------------- */

	/* Make sure dropdown' background color in any of dropdown's state does not collide with labeled field. */
	& > .ck.ck-labeled-field-view__input-wrapper > .ck-dropdown > .ck.ck-button {
		background: transparent;
	}

	/* When the dropdown is "empty", the labeled field label replaces its label. */
	&.ck-labeled-field-view_empty > .ck.ck-labeled-field-view__input-wrapper > .ck-dropdown > .ck-button > .ck-button__label {
		opacity: 0;
	}

	/* Make sure the label of the empty, unfocused input does not cover the dropdown arrow. */
	&.ck-labeled-field-view_empty:not(.ck-labeled-field-view_focused):not(.ck-labeled-field-view_placeholder) > .ck.ck-labeled-field-view__input-wrapper > .ck-dropdown + .ck-label {
		max-width: calc(var(--ck-labeled-field-empty-unfocused-max-width) - var(--ck-dropdown-arrow-size) - var(--ck-spacing-standard));
	}
}