173 lines
4 KiB
Vue
173 lines
4 KiB
Vue
<!--
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SPDX-FileCopyrightText: syuilo and other misskey contributors
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SPDX-License-Identifier: AGPL-3.0-only
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-->
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<template>
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<div :class="[$style.codeEditorRoot, { [$style.disabled]: disabled, [$style.focused]: focused }]">
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<div :class="$style.codeEditorScroller">
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<textarea
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ref="inputEl"
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v-model="vModel"
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:class="[$style.textarea]"
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:disabled="disabled"
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:required="required"
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:readonly="readonly"
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autocomplete="off"
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wrap="off"
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spellcheck="false"
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@focus="focused = true"
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@blur="focused = false"
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@keydown="onKeydown($event)"
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@input="onInput"
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></textarea>
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<XCode :class="$style.codeEditorHighlighter" :codeEditor="true" :code="v" :lang="lang"/>
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</div>
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</div>
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</template>
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<script lang="ts" setup>
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import { ref, watch, toRefs, shallowRef, nextTick } from 'vue';
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import XCode from '@/components/MkCode.core.vue';
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const props = withDefaults(defineProps<{
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modelValue: string | null;
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lang: string;
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required?: boolean;
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readonly?: boolean;
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disabled?: boolean;
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}>(), {
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lang: 'js',
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});
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const emit = defineEmits<{
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(ev: 'change', _ev: KeyboardEvent): void;
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(ev: 'keydown', _ev: KeyboardEvent): void;
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(ev: 'enter'): void;
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(ev: 'update:modelValue', value: string): void;
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}>();
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const { modelValue } = toRefs(props);
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const vModel = ref<string>(modelValue.value ?? '');
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const v = ref<string>(modelValue.value ?? '');
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const focused = ref(false);
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const changed = ref(false);
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const inputEl = shallowRef<HTMLTextAreaElement>();
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const onInput = (ev) => {
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v.value = ev.target?.value ?? v.value;
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changed.value = true;
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emit('change', ev);
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};
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const onKeydown = (ev: KeyboardEvent) => {
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if (ev.isComposing || ev.key === 'Process' || ev.keyCode === 229) return;
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emit('keydown', ev);
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if (ev.code === 'Enter') {
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const pos = inputEl.value?.selectionStart ?? 0;
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const posEnd = inputEl.value?.selectionEnd ?? vModel.value.length;
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if (pos === posEnd) {
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const lines = vModel.value.slice(0, pos).split('\n');
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const currentLine = lines[lines.length - 1];
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const currentLineSpaces = currentLine.match(/^\s+/);
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const posDelta = currentLineSpaces ? currentLineSpaces[0].length : 0;
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ev.preventDefault();
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vModel.value = vModel.value.slice(0, pos) + '\n' + (currentLineSpaces ? currentLineSpaces[0] : '') + vModel.value.slice(pos);
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v.value = vModel.value;
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nextTick(() => {
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inputEl.value?.setSelectionRange(pos + 1 + posDelta, pos + 1 + posDelta);
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});
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}
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emit('enter');
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}
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if (ev.key === 'Tab') {
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const pos = inputEl.value?.selectionStart ?? 0;
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const posEnd = inputEl.value?.selectionEnd ?? vModel.value.length;
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vModel.value = vModel.value.slice(0, pos) + '\t' + vModel.value.slice(posEnd);
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v.value = vModel.value;
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nextTick(() => {
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inputEl.value?.setSelectionRange(pos + 1, pos + 1);
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});
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ev.preventDefault();
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}
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};
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const updated = () => {
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changed.value = false;
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emit('update:modelValue', v.value);
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};
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watch(modelValue, newValue => {
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v.value = newValue ?? '';
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});
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watch(v, () => {
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updated();
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});
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</script>
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<style lang="scss" module>
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.codeEditorRoot {
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min-width: 100%;
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max-width: 100%;
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overflow-x: auto;
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overflow-y: hidden;
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box-sizing: border-box;
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margin: 0;
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padding: 0;
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color: var(--fg);
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border: solid 1px var(--panel);
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transition: border-color 0.1s ease-out;
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font-family: Consolas, Monaco, Andale Mono, Ubuntu Mono, monospace;
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&:hover {
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border-color: var(--inputBorderHover) !important;
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}
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}
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.focused.codeEditorRoot {
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border-color: var(--accent) !important;
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border-radius: 6px;
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}
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.codeEditorScroller {
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position: relative;
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display: inline-block;
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min-width: 100%;
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height: 100%;
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}
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.textarea, .codeEditorHighlighter {
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margin: 0;
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}
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.textarea {
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position: absolute;
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top: 0;
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left: 0;
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right: 0;
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bottom: 0;
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display: inline-block;
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appearance: none;
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resize: none;
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text-align: left;
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color: transparent;
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caret-color: rgb(225, 228, 232);
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background-color: transparent;
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border: 0;
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outline: 0;
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min-width: calc(100% - 24px);
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height: calc(100% - 24px);
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padding: 12px;
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line-height: 1.5em;
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font-size: 1em;
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font-family: Consolas, Monaco, Andale Mono, Ubuntu Mono, monospace;
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}
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.textarea::selection {
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color: #fff;
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}
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</style>
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