68fa661b53
* Move up MathjaxOverlay to be initialized only once * Move ImageOverlay to NoteEditor root * Move Symbols Overlay to NoteEditor root * Refactor image overlay to not require second mutation observer * Use elevation + overflow:hidden in Editorfield * Make it possible to show input next to each other again * Set handle background color to code bg * Make Collapsible unmount the component * Simplify how decorated elements are mounted * Set RichTextInput background to frame-bg again * Strip out FocusTrap code * Revert "Make Collapsible unmount the component" This reverts commit 52722065ea199fa57ae750fa34bf47ee1c5aab3c. * Allow clicking on label container to unfocus field * Fix mathjax overlay resetting too its api too soon * Allow scrolling on overlays * Set focus-border border-color in focused field * Fix background color of fields * Add back grid-gap removed it during merge to see if margin-top would behave any differently - which is not the case. * Fix double border issue within Collapsible.svelte * Format * Edit appearance of focused fields a bit * Remove unused properties * Include elevation in button_mixins_lib * Give label-container a background color Co-authored-by: Henrik Giesel <hengiesel@gmail.com>
425 lines
13 KiB
Svelte
425 lines
13 KiB
Svelte
<!--
|
|
Copyright: Ankitects Pty Ltd and contributors
|
|
License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
|
|
-->
|
|
<script lang="ts">
|
|
import { getContext } from "svelte";
|
|
import type { Readable } from "svelte/store";
|
|
|
|
import DropdownItem from "../../components/DropdownItem.svelte";
|
|
import Popover from "../../components/Popover.svelte";
|
|
import WithFloating from "../../components/WithFloating.svelte";
|
|
import { fontFamilyKey } from "../../lib/context-keys";
|
|
import { getRange, getSelection } from "../../lib/cross-browser";
|
|
import { createDummyDoc } from "../../lib/parsing";
|
|
import type { Callback } from "../../lib/typing";
|
|
import { singleCallback } from "../../lib/typing";
|
|
import type { SpecialKeyParams } from "../../sveltelib/input-handler";
|
|
import type { EditingInputAPI } from "../EditingArea.svelte";
|
|
import { context } from "../NoteEditor.svelte";
|
|
import {
|
|
editingInputIsRichText,
|
|
RichTextInputAPI,
|
|
} from "../rich-text-input/RichTextInput.svelte";
|
|
import { findSymbols, getAutoInsertSymbol, getExactSymbol } from "./symbols-table";
|
|
import type {
|
|
SymbolsEntry as SymbolsEntryType,
|
|
SymbolsTable,
|
|
} from "./symbols-types";
|
|
import SymbolsEntry from "./SymbolsEntry.svelte";
|
|
|
|
const symbolsDelimiter = ":";
|
|
const queryMinLength = 2;
|
|
const autoInsertQueryMaxLength = 5;
|
|
|
|
const whitespaceCharacters = [" ", "\u00a0"];
|
|
|
|
const { focusedInput } = context.get();
|
|
|
|
let cleanup: Callback;
|
|
let richTextInput: RichTextInputAPI | null = null;
|
|
|
|
async function initialize(input: EditingInputAPI | null): Promise<void> {
|
|
cleanup?.();
|
|
|
|
if (!input || !editingInputIsRichText(input)) {
|
|
richTextInput = null;
|
|
return;
|
|
}
|
|
|
|
cleanup = input.inputHandler.beforeInput.on(
|
|
async (input: { event: Event }): Promise<void> => onBeforeInput(input),
|
|
);
|
|
richTextInput = input;
|
|
}
|
|
|
|
$: initialize($focusedInput);
|
|
|
|
const fontFamily = getContext<Readable<string>>(fontFamilyKey);
|
|
|
|
let foundSymbols: SymbolsTable = [];
|
|
|
|
let referenceRange: Range | null = null;
|
|
let activeItem: number | null = null;
|
|
let cleanupReferenceRange: Callback;
|
|
|
|
function unsetReferenceRange() {
|
|
referenceRange = null;
|
|
activeItem = null;
|
|
cleanupReferenceRange?.();
|
|
}
|
|
|
|
function replaceText(selection: Selection, text: Text, nodes: Node[]): void {
|
|
text.deleteData(0, text.length);
|
|
text.after(...nodes);
|
|
|
|
unsetReferenceRange();
|
|
|
|
// Place caret behind it
|
|
const range = new Range();
|
|
range.setEndAfter(nodes[nodes.length - 1]);
|
|
range.collapse(false);
|
|
|
|
selection.removeAllRanges();
|
|
selection.addRange(range);
|
|
}
|
|
|
|
const parser = new DOMParser();
|
|
|
|
function symbolsEntryToReplacement(entry: SymbolsEntryType): Node[] {
|
|
if (entry.containsHTML) {
|
|
const doc = parser.parseFromString(
|
|
createDummyDoc(entry.symbol),
|
|
"text/html",
|
|
);
|
|
return [...doc.body.childNodes];
|
|
} else {
|
|
return [new Text(entry.symbol)];
|
|
}
|
|
}
|
|
|
|
function tryAutoInsert(selection: Selection, range: Range, query: string): boolean {
|
|
if (
|
|
query.length >= queryMinLength &&
|
|
query.length <= autoInsertQueryMaxLength
|
|
) {
|
|
const symbolEntry = getAutoInsertSymbol(query);
|
|
|
|
if (symbolEntry) {
|
|
const commonAncestor = range.commonAncestorContainer as Text;
|
|
const replacementLength = query.length;
|
|
|
|
commonAncestor.parentElement?.normalize();
|
|
commonAncestor.deleteData(
|
|
range.endOffset - replacementLength + 1,
|
|
replacementLength,
|
|
);
|
|
|
|
richTextInput!.inputHandler.insertText.on(
|
|
async ({ text }) => {
|
|
replaceText(
|
|
selection,
|
|
text,
|
|
symbolsEntryToReplacement(symbolEntry),
|
|
);
|
|
},
|
|
{
|
|
once: true,
|
|
},
|
|
);
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
function findValidSearchQuery(
|
|
selection: Selection,
|
|
range: Range,
|
|
startQuery = "",
|
|
shouldFinishEarly: (
|
|
selection: Selection,
|
|
range: Range,
|
|
query: string,
|
|
) => boolean = () => false,
|
|
): string | null {
|
|
if (
|
|
whitespaceCharacters.includes(startQuery) ||
|
|
startQuery === symbolsDelimiter
|
|
) {
|
|
return null;
|
|
}
|
|
|
|
const offset = range.endOffset;
|
|
|
|
if (!(range.commonAncestorContainer instanceof Text)) {
|
|
return null;
|
|
}
|
|
|
|
if (range.commonAncestorContainer.parentElement) {
|
|
// This call can change range.commonAncestor
|
|
range.commonAncestorContainer.parentElement.normalize();
|
|
}
|
|
|
|
const commonAncestorContainer = range.commonAncestorContainer;
|
|
let query = startQuery;
|
|
|
|
for (let index = offset - 1; index >= 0; index--) {
|
|
const currentCharacter = commonAncestorContainer.wholeText[index];
|
|
|
|
if (whitespaceCharacters.includes(currentCharacter)) {
|
|
return null;
|
|
} else if (currentCharacter === symbolsDelimiter) {
|
|
if (query.length < queryMinLength) {
|
|
return null;
|
|
}
|
|
|
|
return query;
|
|
}
|
|
|
|
query = currentCharacter + query;
|
|
|
|
if (shouldFinishEarly(selection, range, query)) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
function onSpecialKey({ event, action }): void {
|
|
if (["caretLeft", "caretRight"].includes(action)) {
|
|
return unsetReferenceRange();
|
|
}
|
|
|
|
event.preventDefault();
|
|
|
|
if (action === "caretUp") {
|
|
if (activeItem === 0) {
|
|
activeItem = foundSymbols.length - 1;
|
|
} else {
|
|
activeItem--;
|
|
}
|
|
} else if (action === "caretDown") {
|
|
if (activeItem >= foundSymbols.length - 1) {
|
|
activeItem = 0;
|
|
} else {
|
|
activeItem++;
|
|
}
|
|
} else if (action === "enter" || action === "tab") {
|
|
replaceTextOnDemand(foundSymbols[activeItem]);
|
|
} else if (action === "escape") {
|
|
unsetReferenceRange();
|
|
}
|
|
}
|
|
|
|
function maybeShowOverlay(selection: Selection, event: InputEvent): void {
|
|
if (!event.data) {
|
|
return;
|
|
}
|
|
|
|
const currentRange = getRange(selection)!;
|
|
|
|
// The input event opening the overlay or triggering the auto-insert
|
|
// must be an insertion, so event.data must be a string.
|
|
// If the inputType is insertCompositionText, the event.data will
|
|
// contain the current composition, but the document will also
|
|
// contain the whole composition except the last character.
|
|
// So we only take the last character from event.data and retrieve the
|
|
// rest from the document
|
|
const startQuery = event.data[event.data.length - 1];
|
|
const query = findValidSearchQuery(
|
|
selection,
|
|
currentRange,
|
|
startQuery,
|
|
tryAutoInsert,
|
|
);
|
|
|
|
if (query) {
|
|
foundSymbols = findSymbols(query);
|
|
|
|
if (foundSymbols.length > 0) {
|
|
referenceRange = currentRange;
|
|
activeItem = 0;
|
|
|
|
cleanupReferenceRange = singleCallback(
|
|
richTextInput!.editable.focusHandler.blur.on(
|
|
async () => unsetReferenceRange(),
|
|
{
|
|
once: true,
|
|
},
|
|
),
|
|
richTextInput!.inputHandler.pointerDown.on(async () =>
|
|
unsetReferenceRange(),
|
|
),
|
|
richTextInput!.inputHandler.specialKey.on(
|
|
async (input: SpecialKeyParams) => onSpecialKey(input),
|
|
),
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
function replaceTextOnDemand(entry: SymbolsEntryType): void {
|
|
const commonAncestor = referenceRange!.commonAncestorContainer as Text;
|
|
const selection = getSelection(commonAncestor)!;
|
|
|
|
const replacementLength =
|
|
commonAncestor.data
|
|
.substring(0, referenceRange!.endOffset)
|
|
.split("")
|
|
.reverse()
|
|
.join("")
|
|
.indexOf(symbolsDelimiter) + 1;
|
|
|
|
commonAncestor.deleteData(
|
|
referenceRange!.endOffset - replacementLength,
|
|
replacementLength + 1,
|
|
);
|
|
|
|
const nodes = symbolsEntryToReplacement(entry);
|
|
commonAncestor.after(...nodes);
|
|
|
|
const range = new Range();
|
|
range.setEndAfter(nodes[nodes.length - 1]);
|
|
range.collapse(false);
|
|
|
|
selection.removeAllRanges();
|
|
selection.addRange(range);
|
|
|
|
unsetReferenceRange();
|
|
}
|
|
|
|
function prepareInsertion(selection: Selection, query: string): void {
|
|
const symbolEntry = getExactSymbol(query);
|
|
|
|
if (!symbolEntry) {
|
|
return unsetReferenceRange();
|
|
}
|
|
|
|
const currentRange = getRange(selection)!;
|
|
const offset = currentRange.endOffset;
|
|
|
|
if (
|
|
!(currentRange.commonAncestorContainer instanceof Text) ||
|
|
offset < queryMinLength
|
|
) {
|
|
return unsetReferenceRange();
|
|
}
|
|
|
|
const commonAncestor = currentRange.commonAncestorContainer;
|
|
|
|
const replacementLength =
|
|
commonAncestor.data
|
|
.substring(0, currentRange.endOffset)
|
|
.split("")
|
|
.reverse()
|
|
.join("")
|
|
.indexOf(symbolsDelimiter) + 1;
|
|
|
|
commonAncestor.deleteData(
|
|
currentRange.endOffset - replacementLength,
|
|
replacementLength,
|
|
);
|
|
|
|
richTextInput!.inputHandler.insertText.on(
|
|
async ({ text }) =>
|
|
replaceText(selection, text, symbolsEntryToReplacement(symbolEntry)),
|
|
{
|
|
once: true,
|
|
},
|
|
);
|
|
}
|
|
|
|
function updateOverlay(selection: Selection, event: InputEvent): void {
|
|
if (event.data === symbolsDelimiter) {
|
|
const query = findValidSearchQuery(selection, getRange(selection)!);
|
|
|
|
if (query) {
|
|
prepareInsertion(selection, query);
|
|
} else {
|
|
unsetReferenceRange();
|
|
}
|
|
}
|
|
|
|
// We have to wait for afterInput to update the symbols, because we also
|
|
// want to update in the case of a deletion
|
|
richTextInput!.inputHandler.afterInput.on(
|
|
async (): Promise<void> => {
|
|
const currentRange = getRange(selection)!;
|
|
const query = findValidSearchQuery(selection, currentRange);
|
|
|
|
if (!query) {
|
|
return unsetReferenceRange();
|
|
}
|
|
|
|
foundSymbols = findSymbols(query);
|
|
|
|
if (foundSymbols.length === 0) {
|
|
unsetReferenceRange();
|
|
} else {
|
|
referenceRange = currentRange;
|
|
}
|
|
},
|
|
{ once: true },
|
|
);
|
|
}
|
|
|
|
function onBeforeInput({ event }): void {
|
|
const selection = getSelection(event.target)!;
|
|
|
|
if (referenceRange) {
|
|
updateOverlay(selection, event);
|
|
} else {
|
|
maybeShowOverlay(selection, event);
|
|
}
|
|
}
|
|
</script>
|
|
|
|
<div class="symbols-overlay">
|
|
{#if referenceRange}
|
|
<WithFloating
|
|
reference={referenceRange}
|
|
placement={["top", "bottom"]}
|
|
offset={10}
|
|
>
|
|
<Popover slot="floating" --popover-padding-inline="0">
|
|
<div class="symbols-menu">
|
|
{#each foundSymbols as found, index (found.symbol)}
|
|
<DropdownItem
|
|
active={index === activeItem}
|
|
on:click={() => replaceTextOnDemand(found)}
|
|
>
|
|
<SymbolsEntry
|
|
let:symbolName
|
|
symbol={found.symbol}
|
|
names={found.names}
|
|
containsHTML={Boolean(found.containsHTML)}
|
|
fontFamily={$fontFamily}
|
|
>
|
|
{symbolsDelimiter}{symbolName}{symbolsDelimiter}
|
|
</SymbolsEntry>
|
|
</DropdownItem>
|
|
{/each}
|
|
</div>
|
|
</Popover>
|
|
</WithFloating>
|
|
{/if}
|
|
</div>
|
|
|
|
<style lang="scss">
|
|
.symbols-menu {
|
|
display: flex;
|
|
flex-flow: column nowrap;
|
|
|
|
min-width: 140px;
|
|
max-height: 15rem;
|
|
|
|
font-size: 12px;
|
|
overflow: hidden auto;
|
|
text-overflow: ellipsis;
|
|
}
|
|
</style>
|