From d218755b4c90998a1cf8c8cfa52f3b94dc195308 Mon Sep 17 00:00:00 2001
From: pipipi-pikachu <pipipi_pikachu@163.com>
Date: Sun, 29 Oct 2023 16:52:13 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E6=BC=94=E8=AE=B2=E8=80=85=E5=A4=87?=
 =?UTF-8?q?=E6=B3=A8=E6=94=AF=E6=8C=81=E5=AF=8C=E6=96=87=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/utils/prosemirror/index.ts               |  14 +-
 src/utils/prosemirror/plugins/index.ts       |  15 +-
 src/utils/prosemirror/plugins/placeholder.ts |  23 ++
 src/views/Editor/Remark/Editor.vue           | 223 +++++++++++++++++++
 src/views/Editor/Remark/index.vue            |  42 ++--
 5 files changed, 286 insertions(+), 31 deletions(-)
 create mode 100644 src/utils/prosemirror/plugins/placeholder.ts
 create mode 100644 src/views/Editor/Remark/Editor.vue

diff --git a/src/utils/prosemirror/index.ts b/src/utils/prosemirror/index.ts
index 42a75bb9..c70b91c4 100644
--- a/src/utils/prosemirror/index.ts
+++ b/src/utils/prosemirror/index.ts
@@ -1,8 +1,7 @@
 import { EditorState } from 'prosemirror-state'
-import { EditorView } from 'prosemirror-view'
+import { type DirectEditorProps, EditorView } from 'prosemirror-view'
 import { Schema, DOMParser } from 'prosemirror-model'
-
-import { buildPlugins } from './plugins/index'
+import { buildPlugins, type PluginOptions } from './plugins/index'
 import { schemaNodes, schemaMarks } from './schema/index'
 
 const schema = new Schema({
@@ -17,11 +16,16 @@ export const createDocument = (content: string) => {
   return DOMParser.fromSchema(schema).parse(element as Element)
 }
 
-export const initProsemirrorEditor = (dom: Element, content: string, props = {}) => {
+export const initProsemirrorEditor = (
+  dom: Element,
+  content: string,
+  props: Omit<DirectEditorProps, 'state'>,
+  pluginOptions?: PluginOptions,
+) => {
   return new EditorView(dom, {
     state: EditorState.create({
       doc: createDocument(content),
-      plugins: buildPlugins(schema),
+      plugins: buildPlugins(schema, pluginOptions),
     }),
     ...props,
   })
diff --git a/src/utils/prosemirror/plugins/index.ts b/src/utils/prosemirror/plugins/index.ts
index a17f6859..aecc7810 100644
--- a/src/utils/prosemirror/plugins/index.ts
+++ b/src/utils/prosemirror/plugins/index.ts
@@ -7,9 +7,16 @@ import { gapCursor } from 'prosemirror-gapcursor'
 
 import { buildKeymap } from './keymap'
 import { buildInputRules } from './inputrules'
+import { placeholderPlugin } from './placeholder'
 
-export const buildPlugins = (schema: Schema) => {
-  return [
+export interface PluginOptions {
+  placeholder?: string
+}
+
+export const buildPlugins = (schema: Schema, options?: PluginOptions) => {
+  const placeholder = options?.placeholder
+
+  const plugins = [
     buildInputRules(schema),
     keymap(buildKeymap(schema)),
     keymap(baseKeymap),
@@ -17,4 +24,8 @@ export const buildPlugins = (schema: Schema) => {
     gapCursor(),
     history(),
   ]
+
+  if (placeholder) plugins.push(placeholderPlugin(placeholder))
+
+  return plugins
 }
\ No newline at end of file
diff --git a/src/utils/prosemirror/plugins/placeholder.ts b/src/utils/prosemirror/plugins/placeholder.ts
new file mode 100644
index 00000000..51b67f06
--- /dev/null
+++ b/src/utils/prosemirror/plugins/placeholder.ts
@@ -0,0 +1,23 @@
+import { Plugin } from 'prosemirror-state'
+import { Decoration, DecorationSet } from 'prosemirror-view'
+import type { Node } from 'prosemirror-model'
+
+const isEmptyParagraph = (node: Node) => {
+  return node.type.name === 'paragraph' && node.nodeSize === 2
+}
+
+export const placeholderPlugin = (placeholder: string) => {
+  return new Plugin({
+    props: {
+      decorations(state) {
+        const { $from } = state.selection
+        if (isEmptyParagraph($from.parent)) {
+          const decoration = Decoration.node($from.before(), $from.after(), {
+            'data-placeholder': placeholder,
+          })
+          return DecorationSet.create(state.doc, [decoration])
+        }
+      },
+    },
+  })
+}
\ No newline at end of file
diff --git a/src/views/Editor/Remark/Editor.vue b/src/views/Editor/Remark/Editor.vue
new file mode 100644
index 00000000..1009c7f2
--- /dev/null
+++ b/src/views/Editor/Remark/Editor.vue
@@ -0,0 +1,223 @@
+<template>
+  <div class="editor" v-click-outside="hideMenuInstance">
+    <div 
+      class="prosemirror-editor"
+      ref="editorViewRef"
+    ></div>
+  
+    <div class="menu" ref="menuRef">
+      <button :class="{ 'active': attr?.bold }" @click="execCommand('bold')"><IconTextBold /></button>
+      <button :class="{ 'active': attr?.em }" @click="execCommand('em')"><IconTextItalic /></button>
+      <button :class="{ 'active': attr?.underline }" @click="execCommand('underline')"><IconTextUnderline /></button>
+      <button :class="{ 'active': attr?.strikethrough }" @click="execCommand('strikethrough')"><IconStrikethrough /></button>
+      <Popover trigger="click" style="width: 30%;">
+        <template #content>
+          <ColorPicker :modelValue="attr?.color" @update:modelValue="value => execCommand('color', value)" />
+        </template>
+        <button><IconText /></button>
+      </Popover>
+      <Popover trigger="click" style="width: 30%;">
+        <template #content>
+          <ColorPicker :modelValue="attr?.backcolor" @update:modelValue="value => execCommand('backcolor', value)" />
+        </template>
+        <button><IconHighLight /></button>
+      </Popover>
+      <button @click="execCommand('clear')"><IconFormat /></button>
+    </div>
+  </div>
+</template>
+
+<script lang="ts" setup>
+import { onMounted, onUnmounted, ref } from 'vue'
+import { debounce } from 'lodash'
+import { useMainStore } from '@/store'
+import type { EditorView } from 'prosemirror-view'
+import { initProsemirrorEditor, createDocument } from '@/utils/prosemirror'
+import { addMark, autoSelectAll, getTextAttrs, type TextAttrs } from '@/utils/prosemirror/utils'
+import tippy, { type Instance } from 'tippy.js'
+
+import ColorPicker from '@/components/ColorPicker/index.vue'
+import Popover from '@/components/Popover.vue'
+import { toggleMark } from 'prosemirror-commands'
+
+const props = defineProps<{
+  value: string
+}>()
+
+const emit = defineEmits<{
+  (event: 'update', payload: string): void
+}>()
+
+const mainStore = useMainStore()
+
+const editorViewRef = ref<HTMLElement>()
+let editorView: EditorView
+
+const attr = ref<TextAttrs>()
+
+const menuInstance = ref<Instance>()
+const menuRef = ref<HTMLElement>()
+
+const hideMenuInstance = () => {
+  if (menuInstance.value) menuInstance.value.hide()
+}
+
+const handleInput = debounce(function() {
+  emit('update', editorView.dom.innerHTML)
+}, 300, { trailing: true })
+
+const handleFocus = () => {
+  mainStore.setDisableHotkeysState(true)
+}
+
+const handleBlur = () => {
+  mainStore.setDisableHotkeysState(false)
+}
+
+const updateTextContent = () => {
+  if (!editorView) return
+  const { doc, tr } = editorView.state
+  editorView.dispatch(tr.replaceRangeWith(0, doc.content.size, createDocument(props.value)))
+}
+
+defineExpose({ updateTextContent })
+
+const handleMouseup = () => {
+  const selection = window.getSelection()
+
+  if (
+    !selection ||
+    !selection.anchorNode ||
+    !selection.focusNode ||
+    selection.isCollapsed ||
+    selection.type === 'Caret' ||
+    selection.type === 'None'
+  ) return
+
+  const range = selection.getRangeAt(0)
+
+  if (menuInstance.value) {
+    attr.value = getTextAttrs(editorView)
+
+    menuInstance.value.setProps({
+      getReferenceClientRect: () => range.getBoundingClientRect(),
+    })
+    menuInstance.value.show()
+  }
+}
+
+const handleMousedown = () => {
+  hideMenuInstance()
+  window.getSelection()?.removeAllRanges()
+}
+
+const execCommand = (command: string, value?: string) => {
+  if (command === 'color' && value) {
+    const mark = editorView.state.schema.marks.forecolor.create({ color: value })
+    autoSelectAll(editorView)
+    addMark(editorView, mark)
+  }
+  else if (command === 'backcolor' && value) {
+    const mark = editorView.state.schema.marks.backcolor.create({ backcolor: value })
+    autoSelectAll(editorView)
+    addMark(editorView, mark)
+  }
+  else if (command === 'bold') {
+    autoSelectAll(editorView)
+    toggleMark(editorView.state.schema.marks.strong)(editorView.state, editorView.dispatch)
+  }
+  else if (command === 'em') {
+    autoSelectAll(editorView)
+    toggleMark(editorView.state.schema.marks.em)(editorView.state, editorView.dispatch)
+  }
+  else if (command === 'underline') {
+    autoSelectAll(editorView)
+    toggleMark(editorView.state.schema.marks.underline)(editorView.state, editorView.dispatch)
+  }
+  else if (command === 'strikethrough') {
+    autoSelectAll(editorView)
+    toggleMark(editorView.state.schema.marks.strikethrough)(editorView.state, editorView.dispatch)
+  }
+  else if (command === 'clear') {
+    autoSelectAll(editorView)
+    const { $from, $to } = editorView.state.selection
+    editorView.dispatch(editorView.state.tr.removeMark($from.pos, $to.pos))
+  }
+
+  editorView.focus()
+  handleInput()
+  attr.value = getTextAttrs(editorView)
+}
+
+onMounted(() => {
+  editorView = initProsemirrorEditor((editorViewRef.value as Element), props.value, {
+    handleDOMEvents: {
+      focus: handleFocus,
+      blur: handleBlur,
+      mouseup: handleMouseup,
+      mousedown: handleMousedown,
+      input: handleInput,
+    },
+  }, {
+    placeholder: '点击输入演讲者备注',
+  })
+
+  menuInstance.value = tippy(editorViewRef.value!, {
+    duration: 0,
+    content: menuRef.value!,
+    interactive: true,
+    trigger: 'manual',
+    placement: 'top',
+    hideOnClick: 'toggle',
+    offset: [0, 6],
+  })
+})
+
+onUnmounted(() => {
+  editorView && editorView.destroy()
+})
+</script>
+
+<style lang="scss" scoped>
+.prosemirror-editor {
+  cursor: text;
+
+  ::v-deep(.ProseMirror) {
+    font-size: 12px;
+    overflow: auto;
+    padding: 8px;
+    line-height: 1.5;
+
+    & > p[data-placeholder]::before {
+      content: attr(data-placeholder);
+      pointer-events: none;
+      position: absolute;
+      font-size: 12px;
+      color: rgba(#666, 0.5);
+    }
+  }
+}
+.menu {
+  display: flex;
+  background-color: #fff;
+  padding: 5px;
+  border-radius: $borderRadius;
+  box-shadow: 0 0 20px 0 rgba(0, 0, 0, .15);
+
+  button {
+    outline: 0;
+    border: 0;
+    background-color: #fff;
+    padding: 3px;
+    border-radius: $borderRadius;
+    font-size: 15px;
+    margin: 0 3px;
+    cursor: pointer;
+
+    &:hover, &.active {
+      background-color: $themeColor;
+      color: #fff;
+    }
+  }
+}
+</style>
diff --git a/src/views/Editor/Remark/index.vue b/src/views/Editor/Remark/index.vue
index 72dd4e4a..a9321b8e 100644
--- a/src/views/Editor/Remark/index.vue
+++ b/src/views/Editor/Remark/index.vue
@@ -4,19 +4,21 @@
       class="resize-handler"
       @mousedown="$event => resize($event)"
     ></div>
-    <textarea
+    <Editor
       :value="remark"
-      placeholder="点击输入演讲者备注"
-      @input="$event => handleInput($event)"
-    ></textarea>
+      ref="editorRef"
+      @update="value => handleInput(value)"
+    />
   </div>
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue'
+import { computed, nextTick, ref, watch } from 'vue'
 import { storeToRefs } from 'pinia'
 import { useSlidesStore } from '@/store'
 
+import Editor from './Editor.vue'
+
 const props = defineProps<{
   height: number
 }>()
@@ -28,11 +30,19 @@ const emit = defineEmits<{
 const slidesStore = useSlidesStore()
 const { currentSlide } = storeToRefs(slidesStore)
 
+const editorRef = ref<InstanceType<typeof Editor>>()
+watch(() => currentSlide.value.id, () => {
+  nextTick(() => {
+    editorRef.value!.updateTextContent()
+  })
+}, {
+  immediate: true,
+})
+
 const remark = computed(() => currentSlide.value?.remark || '')
 
-const handleInput = (e: Event) => {
-  const value = (e.target as HTMLTextAreaElement).value
-  slidesStore.updateSlide({ remark: value })
+const handleInput = (content: string) => {
+  slidesStore.updateSlide({ remark: content })
 }
 
 const resize = (e: MouseEvent) => {
@@ -66,22 +76,6 @@ const resize = (e: MouseEvent) => {
 .remark {
   position: relative;
   border-top: 1px solid $borderColor;
-
-  textarea {
-    width: 100%;
-    height: 100%;
-    overflow-y: auto;
-    resize: none;
-    border: 0;
-    outline: 0;
-    padding: 8px;
-    font-size: 12px;
-    background-color: transparent;
-    box-sizing: border-box;
-    line-height: 1.5;
-
-    @include absolute-0();
-  }
 }
 .resize-handler {
   height: 7px;