mirror of
https://github.com/pipipi-pikachu/PPTist.git
synced 2025-04-15 02:20:00 +08:00
341 lines
12 KiB
Vue
341 lines
12 KiB
Vue
<template>
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<div
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class="editable-element-text"
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ref="elementRef"
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:class="{ 'lock': elementInfo.lock }"
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:style="{
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top: elementInfo.top + 'px',
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left: elementInfo.left + 'px',
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width: elementInfo.width + 'px',
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transform: `rotate(${elementInfo.rotate}deg)`,
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}"
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@mousedown="$event => handleSelectElement($event)"
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>
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<div
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class="element-content"
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:style="{
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backgroundColor: elementInfo.fill,
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opacity: elementInfo.opacity,
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textShadow: shadowStyle,
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lineHeight: elementInfo.lineHeight,
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letterSpacing: (elementInfo.wordSpace || 0) + 'px',
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}"
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v-contextmenu="contextmenus"
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>
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<ElementOutline
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:width="elementInfo.width"
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:height="elementInfo.height"
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:outline="elementInfo.outline"
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/>
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<div
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class="text"
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ref="editorViewRef"
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@mousedown="$event => handleSelectElement($event, false)"
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></div>
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</div>
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</div>
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</template>
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<script lang="ts">
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import { computed, defineComponent, onMounted, onUnmounted, PropType, ref, watch } from 'vue'
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import debounce from 'lodash/debounce'
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import { MutationTypes, useStore } from '@/store'
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import { EditorView } from 'prosemirror-view'
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import { toggleMark, wrapIn, selectAll } from 'prosemirror-commands'
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import { PPTTextElement } from '@/types/slides'
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import { ContextmenuItem } from '@/components/Contextmenu/types'
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import { initProsemirrorEditor } from '@/prosemirror/'
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import { getTextAttrs } from '@/prosemirror/utils'
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import emitter, { EmitterEvents } from '@/utils/emitter'
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import useElementShadow from '@/views/components/element/hooks/useElementShadow'
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import { alignmentCommand } from '@/prosemirror/commands/setTextAlign'
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import { toggleList } from '@/prosemirror/commands/toggleList'
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import useHistorySnapshot from '@/hooks/useHistorySnapshot'
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import ElementOutline from '@/views/components/element/ElementOutline.vue'
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interface CommandPayload {
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command: string;
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value?: string;
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}
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export default defineComponent({
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name: 'editable-element-text',
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components: {
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ElementOutline,
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},
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props: {
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elementInfo: {
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type: Object as PropType<PPTTextElement>,
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required: true,
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},
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selectElement: {
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type: Function as PropType<(e: MouseEvent, element: PPTTextElement, canMove?: boolean) => void>,
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required: true,
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},
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contextmenus: {
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type: Function as PropType<() => ContextmenuItem[]>,
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},
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},
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setup(props) {
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const store = useStore()
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const { addHistorySnapshot } = useHistorySnapshot()
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const elementRef = ref<HTMLElement>()
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const isScaling = ref(false)
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const realHeightCache = ref(-1)
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const editorViewRef = ref<HTMLElement>()
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let editorView: EditorView
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const shadow = computed(() => props.elementInfo.shadow)
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const { shadowStyle } = useElementShadow(shadow)
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const handleElementId = computed(() => store.state.handleElementId)
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const handleSelectElement = (e: MouseEvent, canMove = true) => {
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if (props.elementInfo.lock) return
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e.stopPropagation()
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props.selectElement(e, props.elementInfo, canMove)
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}
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// 监听文本元素的尺寸变化，当高度变化时，更新高度到vuex
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// 如果高度变化时正处在缩放操作中，则等待缩放操作结束后再更新
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const scaleElementStateListener = (state: boolean) => {
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isScaling.value = state
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if (!state && realHeightCache.value !== -1) {
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store.commit(MutationTypes.UPDATE_ELEMENT, {
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id: props.elementInfo.id,
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props: { height: realHeightCache.value },
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})
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realHeightCache.value = -1
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}
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}
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emitter.on(EmitterEvents.SCALE_ELEMENT_STATE, state => scaleElementStateListener(state))
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onUnmounted(() => {
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emitter.off(EmitterEvents.SCALE_ELEMENT_STATE, state => scaleElementStateListener(state))
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})
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const updateTextElementHeight = (entries: ResizeObserverEntry[]) => {
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const contentRect = entries[0].contentRect
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if (!elementRef.value) return
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const realHeight = contentRect.height
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if (props.elementInfo.height !== realHeight) {
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if (!isScaling.value) {
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store.commit(MutationTypes.UPDATE_ELEMENT, {
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id: props.elementInfo.id,
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props: { height: realHeight },
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})
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}
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else realHeightCache.value = realHeight
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}
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}
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const resizeObserver = new ResizeObserver(updateTextElementHeight)
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onMounted(() => {
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if (elementRef.value) resizeObserver.observe(elementRef.value)
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})
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onUnmounted(() => {
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if (elementRef.value) resizeObserver.unobserve(elementRef.value)
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})
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// 富文本的各种交互事件监听：
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// 聚焦时取消全局快捷键事件
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// 输入文字时同步数据到vuex
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// 点击鼠标和键盘时同步富文本状态到工具栏
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const handleInput = debounce(function() {
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store.commit(MutationTypes.UPDATE_ELEMENT, {
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id: props.elementInfo.id,
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props: { content: editorView.dom.innerHTML },
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})
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addHistorySnapshot()
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}, 300, { trailing: true })
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const handleFocus = () => {
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if (props.elementInfo.content === '请输入内容') {
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editorView.dom.innerHTML = ''
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handleInput()
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}
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store.commit(MutationTypes.SET_DISABLE_HOTKEYS_STATE, true)
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}
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const handleBlur = () => {
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store.commit(MutationTypes.SET_DISABLE_HOTKEYS_STATE, false)
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}
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const handleClick = debounce(function() {
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const attr = getTextAttrs(editorView)
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emitter.emit(EmitterEvents.UPDATE_TEXT_STATE, attr)
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}, 30, { trailing: true })
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const handleKeydown = () => {
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handleInput()
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handleClick()
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}
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// 将富文本内容同步到DOM
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const textContent = computed(() => props.elementInfo.content)
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watch(textContent, () => {
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if (!editorView) return
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if (editorView.hasFocus()) return
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editorView.dom.innerHTML = textContent.value
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})
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// 打开/关闭编辑器的编辑模式
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const editable = computed(() => !props.elementInfo.lock)
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watch(editable, () => {
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editorView.setProps({ editable: () => editable.value })
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})
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// Prosemirror编辑器的初始化和卸载
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onMounted(() => {
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editorView = initProsemirrorEditor((editorViewRef.value as Element), textContent.value, {
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handleDOMEvents: {
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focus: handleFocus,
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blur: handleBlur,
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keydown: handleKeydown,
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click: handleClick,
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},
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editable: () => editable.value,
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})
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})
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onUnmounted(() => {
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editorView && editorView.destroy()
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})
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// 执行富文本命令（可以是一个或多个）
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// 部分命令在执行前先判断当前选区是否为空，如果选区为空先进行全选操作
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const execCommand = (payload: CommandPayload | CommandPayload[]) => {
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if (handleElementId.value !== props.elementInfo.id) return
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const commands = ('command' in payload) ? [payload] : payload
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for (const item of commands) {
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if (item.command === 'fontname' && item.value) {
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const mark = editorView.state.schema.marks.fontname.create({ fontname: item.value })
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const { empty } = editorView.state.selection
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if (empty) selectAll(editorView.state, editorView.dispatch)
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const { $from, $to } = editorView.state.selection
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editorView.dispatch(editorView.state.tr.addMark($from.pos, $to.pos, mark))
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}
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else if (item.command === 'fontsize' && item.value) {
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const mark = editorView.state.schema.marks.fontsize.create({ fontsize: item.value })
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const { empty } = editorView.state.selection
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if (empty) selectAll(editorView.state, editorView.dispatch)
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const { $from, $to } = editorView.state.selection
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editorView.dispatch(editorView.state.tr.addMark($from.pos, $to.pos, mark))
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}
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else if (item.command === 'color' && item.value) {
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const mark = editorView.state.schema.marks.forecolor.create({ color: item.value })
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const { empty } = editorView.state.selection
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if (empty) selectAll(editorView.state, editorView.dispatch)
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const { $from, $to } = editorView.state.selection
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editorView.dispatch(editorView.state.tr.addMark($from.pos, $to.pos, mark))
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}
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else if (item.command === 'backcolor' && item.value) {
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const mark = editorView.state.schema.marks.backcolor.create({ backcolor: item.value })
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const { empty } = editorView.state.selection
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if (empty) selectAll(editorView.state, editorView.dispatch)
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const { $from, $to } = editorView.state.selection
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editorView.dispatch(editorView.state.tr.addMark($from.pos, $to.pos, mark))
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}
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else if (item.command === 'bold') {
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const { empty } = editorView.state.selection
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if (empty) selectAll(editorView.state, editorView.dispatch)
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toggleMark(editorView.state.schema.marks.strong)(editorView.state, editorView.dispatch)
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}
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else if (item.command === 'em') {
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const { empty } = editorView.state.selection
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if (empty) selectAll(editorView.state, editorView.dispatch)
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toggleMark(editorView.state.schema.marks.em)(editorView.state, editorView.dispatch)
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}
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else if (item.command === 'underline') {
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const { empty } = editorView.state.selection
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if (empty) selectAll(editorView.state, editorView.dispatch)
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toggleMark(editorView.state.schema.marks.underline)(editorView.state, editorView.dispatch)
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}
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else if (item.command === 'strikethrough') {
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const { empty } = editorView.state.selection
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if (empty) selectAll(editorView.state, editorView.dispatch)
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toggleMark(editorView.state.schema.marks.strikethrough)(editorView.state, editorView.dispatch)
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}
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else if (item.command === 'subscript') {
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toggleMark(editorView.state.schema.marks.subscript)(editorView.state, editorView.dispatch)
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}
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else if (item.command === 'superscript') {
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toggleMark(editorView.state.schema.marks.superscript)(editorView.state, editorView.dispatch)
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}
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else if (item.command === 'blockquote') {
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wrapIn(editorView.state.schema.nodes.blockquote)(editorView.state, editorView.dispatch)
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}
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else if (item.command === 'code') {
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toggleMark(editorView.state.schema.marks.code)(editorView.state, editorView.dispatch)
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}
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else if (item.command === 'align' && item.value) {
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alignmentCommand(editorView, item.value)
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}
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else if (item.command === 'bulletList') {
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const { bullet_list: bulletList, list_item: listItem } = editorView.state.schema.nodes
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toggleList(bulletList, listItem)(editorView.state, editorView.dispatch)
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}
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else if (item.command === 'orderedList') {
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const { ordered_list: orderedList, list_item: listItem } = editorView.state.schema.nodes
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toggleList(orderedList, listItem)(editorView.state, editorView.dispatch)
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}
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else if (item.command === 'clear') {
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const { empty } = editorView.state.selection
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if (empty) selectAll(editorView.state, editorView.dispatch)
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const { $from, $to } = editorView.state.selection
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editorView.dispatch(editorView.state.tr.removeMark($from.pos, $to.pos))
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}
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}
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editorView.focus()
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handleInput()
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handleClick()
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}
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emitter.on(EmitterEvents.EXEC_TEXT_COMMAND, payload => execCommand(payload))
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onUnmounted(() => {
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emitter.off(EmitterEvents.EXEC_TEXT_COMMAND, payload => execCommand(payload))
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})
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return {
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elementRef,
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editorViewRef,
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handleSelectElement,
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shadowStyle,
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}
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},
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})
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</script>
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<style lang="scss" scoped>
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.editable-element-text {
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position: absolute;
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cursor: move;
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&.lock .element-content {
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cursor: default;
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}
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}
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.element-content {
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position: relative;
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padding: 10px;
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line-height: 1.5;
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word-break: break-word;
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.text {
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position: relative;
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cursor: text;
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}
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}
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</style>
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