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proto: add support for indentation and nested lists #9399

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343 changes: 331 additions & 12 deletions packages/rich-text-editor/src/vaadin-rich-text-editor-content-styles.js
Original file line number Diff line number Diff line change
Expand Up @@ -76,6 +76,332 @@ export const contentStyles = css`
.ql-align-right {
text-align: right;
}

/* lists */
.ql-editor ol {
--_item-indent: 1.5em;
--_list-indent: calc(2 * var(--_item-indent));
padding-inline-start: var(--_item-indent);
}

.ql-editor li {
list-style-type: none;
position: relative;
padding-left: var(--_item-indent);
}

.ql-editor li > .ql-ui::before {
display: inline-block;
margin-left: -1.5em;
margin-right: 0.3em;
text-align: right;
white-space: nowrap;
width: 1.2em;
}

.ql-editor li[data-list='bullet'] > .ql-ui::before {
content: '\\2022';
font-size: 1.6rem;
line-height: 1rem;
align-self: baseline;
vertical-align: text-top;
}

.ql-editor p,
.ql-editor h1,
.ql-editor h2,
.ql-editor h3,
.ql-editor h4,
.ql-editor h5,
.ql-editor h6 {
counter-set: list-0 list-1 list-2 list-3 list-4 list-5 list-6 list-7 list-8 list-9;
}

/* 0 */
.ql-editor li[data-list='ordered'] {
counter-increment: list-0;
}

.ql-editor li[data-list='ordered'] > .ql-ui::before {
content: counter(list-0, decimal) '. ';
}

/* 1 */
.ql-editor li[data-list='ordered'].ql-indent-1 {
counter-increment: list-1;
}

.ql-editor li[data-list='ordered'].ql-indent-1 > .ql-ui::before {
content: counter(list-1, lower-alpha) '. ';
}

.ql-editor li[data-list].ql-indent-1 {
counter-set: list-2 list-3 list-4 list-5 list-6 list-7 list-8 list-9;
}

/* 2 */
.ql-editor li[data-list='ordered'].ql-indent-2 {
counter-increment: list-2;
}

.ql-editor li[data-list='ordered'].ql-indent-2 > .ql-ui::before {
content: counter(list-2, lower-roman) '. ';
}

.ql-editor li[data-list].ql-indent-2 {
counter-set: list-3 list-4 list-5 list-6 list-7 list-8 list-9;
}

/* 3 */
.ql-editor li[data-list='ordered'].ql-indent-3 {
counter-increment: list-3;
}

.ql-editor li[data-list='ordered'].ql-indent-3 > .ql-ui::before {
content: counter(list-3, decimal) '. ';
}

.ql-editor li[data-list].ql-indent-3 {
counter-set: list-4 list-5 list-6 list-7 list-8 list-9;
}

/* 4 */
.ql-editor li[data-list='ordered'].ql-indent-4 {
counter-increment: list-4;
}

.ql-editor li[data-list='ordered'].ql-indent-4 > .ql-ui::before {
content: counter(list-4, lower-alpha) '. ';
}

.ql-editor li[data-list].ql-indent-4 {
counter-set: list-5 list-6 list-7 list-8 list-9;
}

/* 5 */
.ql-editor li[data-list='ordered'].ql-indent-5 {
counter-increment: list-5;
}

.ql-editor li[data-list='ordered'].ql-indent-5 > .ql-ui::before {
content: counter(list-5, lower-roman) '. ';
}

.ql-editor li[data-list].ql-indent-5 {
counter-set: list-6 list-7 list-8 list-9;
}

/* 6 */
.ql-editor li[data-list='ordered'].ql-indent-6 {
counter-increment: list-6;
}

.ql-editor li[data-list='ordered'].ql-indent-6 > .ql-ui::before {
content: counter(list-6, decimal) '. ';
}

.ql-editor li[data-list].ql-indent-6 {
counter-set: list-7 list-8 list-9;
}

/* 7 */
.ql-editor li[data-list='ordered'].ql-indent-7 {
counter-increment: list-7;
}

.ql-editor li[data-list='ordered'].ql-indent-7 > .ql-ui::before {
content: counter(list-7, lower-alpha) '. ';
}

.ql-editor li[data-list].ql-indent-7 {
counter-set: list-8 list-9;
}

/* 8 */
.ql-editor li[data-list='ordered'].ql-indent-8 {
counter-increment: list-8;
}

.ql-editor li[data-list='ordered'].ql-indent-8 > .ql-ui::before {
content: counter(list-8, lower-roman) '. ';
}

.ql-editor li[data-list].ql-indent-8 {
counter-set: list-9;
}

/* 9 */
.ql-editor li[data-list='ordered'].ql-indent-9 {
counter-increment: list-9;
}

.ql-editor li[data-list='ordered'].ql-indent-9 > .ql-ui::before {
content: counter(list-9, decimal) '. ';
}

/* indent 1 */
.ql-editor .ql-indent-1:not(.ql-direction-rtl) {
padding-left: var(--_list-indent);
}

.ql-editor li.ql-indent-1:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) + var(--_item-indent));
}

.ql-editor .ql-indent-1.ql-direction-rtl.ql-align-right {
padding-right: var(--_list-indent);
}

.ql-editor li.ql-indent-1.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) + var(--_item-indent));
}

/* indent 2 */
.ql-editor .ql-indent-2:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 2);
}

.ql-editor li.ql-indent-2:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 2 + var(--_item-indent));
}

.ql-editor .ql-indent-2.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 2);
}

.ql-editor li.ql-indent-2.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 2 + var(--_item-indent));
}

/* indent 3 */
.ql-editor .ql-indent-3:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 3);
}

.ql-editor li.ql-indent-3:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 3 + var(--_item-indent));
}

.ql-editor .ql-indent-3.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 3);
}

.ql-editor li.ql-indent-3.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 3 + var(--_item-indent));
}

/* indent 4 */
.ql-editor .ql-indent-4:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 4);
}

.ql-editor li.ql-indent-4:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 4 + var(--_item-indent));
}

.ql-editor .ql-indent-4.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 4);
}

.ql-editor li.ql-indent-4.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 4 + var(--_item-indent));
}

/* indent 5 */
.ql-editor .ql-indent-5:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 5);
}

.ql-editor li.ql-indent-5:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 5 + var(--_item-indent));
}

.ql-editor .ql-indent-5.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 5);
}

.ql-editor li.ql-indent-5.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 5 + var(--_item-indent));
}

/* indent 6 */
.ql-editor .ql-indent-6:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 6);
}

.ql-editor li.ql-indent-6:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 6 + var(--_item-indent));
}

.ql-editor .ql-indent-6.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 6);
}

.ql-editor li.ql-indent-6.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 6 + var(--_item-indent));
}

/* indent 7 */
.ql-editor .ql-indent-7:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 7);
}

.ql-editor li.ql-indent-7:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 7 + var(--_item-indent));
}

.ql-editor .ql-indent-7.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 7);
}

.ql-editor li.ql-indent-7.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 7 + var(--_item-indent));
}

/* indent 8 */
.ql-editor .ql-indent-8:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 8);
}

.ql-editor li.ql-indent-8:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 8 + var(--_item-indent));
}

.ql-editor .ql-indent-8.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 8);
}

.ql-editor li.ql-indent-8.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 8 + var(--_item-indent));
}

/* indent 8 */
.ql-editor .ql-indent-9:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 9);
}

.ql-editor li.ql-indent-9:not(.ql-direction-rtl) {
padding-left: calc(var(--_list-indent) * 9 + var(--_item-indent));
}

.ql-editor .ql-indent-9.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 9);
}

.ql-editor li.ql-indent-9.ql-direction-rtl.ql-align-right {
padding-right: calc(var(--_list-indent) * 9 + var(--_item-indent));
}

.ql-editor li.ql-direction-rtl {
padding-right: var(--_item-indent);
}

.ql-editor li.ql-direction-rtl > .ql-ui::before {
margin-left: 0.3em;
margin-right: -1.5em;
text-align: left;
}

/* quill core end */

blockquote {
Expand All @@ -85,22 +411,15 @@ export const contentStyles = css`
padding-left: 1em;
}

code,
pre {
background-color: #f0f0f0;
border-radius: 0.1875em;
}

pre {
/* Quill converts <pre> to this */
.ql-code-block-container {
font-family: monospace;
white-space: pre-wrap;
margin-bottom: 0.3125em;
margin-top: 0.3125em;
padding: 0.3125em 0.625em;
}

code {
font-size: 85%;
padding: 0.125em 0.25em;
background-color: #f0f0f0;
border-radius: 0.1875em;
}

img {
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