paricafe/packages/frontend/src/components/MkCodeEditor.vue

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<!--
SPDX-FileCopyrightText: syuilo and other misskey contributors
SPDX-License-Identifier: AGPL-3.0-only
-->
<template>
<div>
<div :class="$style.label" @click="focus"><slot name="label"></slot></div>
<div :class="[$style.codeEditorRoot, { [$style.focused]: focused }]">
<div :class="$style.codeEditorScroller">
<textarea
ref="inputEl"
v-model="v"
:class="[$style.textarea]"
:disabled="disabled"
:required="required"
:readonly="readonly"
autocomplete="off"
wrap="off"
spellcheck="false"
@focus="focused = true"
@blur="focused = false"
@keydown="onKeydown($event)"
@input="onInput"
></textarea>
<XCode :class="$style.codeEditorHighlighter" :codeEditor="true" :code="v" :lang="lang"/>
</div>
</div>
<div :class="$style.caption"><slot name="caption"></slot></div>
<MkButton v-if="manualSave && changed" primary :class="$style.save" @click="updated"><i class="ti ti-device-floppy"></i> {{ i18n.ts.save }}</MkButton>
</div>
</template>
<script lang="ts" setup>
import { ref, watch, toRefs, shallowRef, nextTick } from 'vue';
import { debounce } from 'throttle-debounce';
import MkButton from '@/components/MkButton.vue';
import { i18n } from '@/i18n.js';
import XCode from '@/components/MkCode.core.vue';
const props = withDefaults(defineProps<{
modelValue: string | null;
lang: string;
required?: boolean;
readonly?: boolean;
disabled?: boolean;
debounce?: boolean;
manualSave?: boolean;
}>(), {
lang: 'js',
});
const emit = defineEmits<{
(ev: 'change', _ev: KeyboardEvent): void;
(ev: 'keydown', _ev: KeyboardEvent): void;
(ev: 'enter'): void;
(ev: 'update:modelValue', value: string): void;
}>();
const { modelValue } = toRefs(props);
const v = ref<string>(modelValue.value ?? '');
const focused = ref(false);
const changed = ref(false);
const inputEl = shallowRef<HTMLTextAreaElement>();
const focus = () => inputEl.value?.focus();
const onInput = (ev) => {
v.value = ev.target?.value ?? v.value;
changed.value = true;
emit('change', ev);
};
const onKeydown = (ev: KeyboardEvent) => {
if (ev.isComposing || ev.key === 'Process' || ev.keyCode === 229) return;
emit('keydown', ev);
if (ev.code === 'Enter') {
const pos = inputEl.value?.selectionStart ?? 0;
const posEnd = inputEl.value?.selectionEnd ?? v.value.length;
if (pos === posEnd) {
const lines = v.value.slice(0, pos).split('\n');
const currentLine = lines[lines.length - 1];
const currentLineSpaces = currentLine.match(/^\s+/);
const posDelta = currentLineSpaces ? currentLineSpaces[0].length : 0;
ev.preventDefault();
v.value = v.value.slice(0, pos) + '\n' + (currentLineSpaces ? currentLineSpaces[0] : '') + v.value.slice(pos);
nextTick(() => {
inputEl.value?.setSelectionRange(pos + 1 + posDelta, pos + 1 + posDelta);
});
}
emit('enter');
}
if (ev.key === 'Tab') {
const pos = inputEl.value?.selectionStart ?? 0;
const posEnd = inputEl.value?.selectionEnd ?? v.value.length;
v.value = v.value.slice(0, pos) + '\t' + v.value.slice(posEnd);
nextTick(() => {
inputEl.value?.setSelectionRange(pos + 1, pos + 1);
});
ev.preventDefault();
}
};
const updated = () => {
changed.value = false;
emit('update:modelValue', v.value);
};
const debouncedUpdated = debounce(1000, updated);
watch(modelValue, newValue => {
v.value = newValue ?? '';
});
watch(v, newValue => {
if (!props.manualSave) {
if (props.debounce) {
debouncedUpdated();
} else {
updated();
}
}
});
</script>
<style lang="scss" module>
.label {
font-size: 0.85em;
padding: 0 0 8px 0;
user-select: none;
&:empty {
display: none;
}
}
.caption {
font-size: 0.85em;
padding: 8px 0 0 0;
color: var(--fgTransparentWeak);
&:empty {
display: none;
}
}
.save {
margin: 8px 0 0 0;
}
.codeEditorRoot {
min-width: 100%;
max-width: 100%;
overflow-x: auto;
overflow-y: hidden;
box-sizing: border-box;
margin: 0;
border-radius: 6px;
padding: 0;
color: var(--fg);
border: solid 1px var(--panel);
transition: border-color 0.1s ease-out;
font-family: Consolas, Monaco, Andale Mono, Ubuntu Mono, monospace;
&:hover {
border-color: var(--inputBorderHover) !important;
}
}
.focused.codeEditorRoot {
border-color: var(--accent) !important;
border-radius: 6px;
}
.codeEditorScroller {
position: relative;
display: inline-block;
min-width: 100%;
height: 100%;
}
.textarea, .codeEditorHighlighter {
margin: 0;
}
.textarea {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
display: inline-block;
appearance: none;
resize: none;
text-align: left;
color: transparent;
caret-color: var(--fg);
background-color: transparent;
border: 0;
border-radius: 6px;
box-sizing: border-box;
outline: 0;
min-width: calc(100% - 24px);
height: 100%;
padding: 12px;
line-height: 1.5em;
font-size: 1em;
font-family: Consolas, Monaco, Andale Mono, Ubuntu Mono, monospace;
}
.textarea::selection {
color: var(--bg);
}
</style>