发现新版本

网站好像有新内容，是否更新(ﾟ⊿ﾟ)ﾂ？

canvas-editor是一个基于HTML5 Canvas的富文本编辑器，支持所见即所得的编辑体验，支持图片上传、视频嵌入、格式排版等功能，可以用于笔记编辑、文档编辑、评论区富文本编辑等场景。

官方已经有vue3实现的demo插件

下面是我用vue2实现的demo 基于element

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<template>
    <div class="Cityk-common-layout">
        <div id="app">
            <!-- 工具栏 -->
            <div class="editor-toolbar" editor-component="menu">
                <el-button icon="el-icon-thumb" type="primary" @click="getAllData">
                    保存
                </el-button>
                <el-divider direction="vertical"></el-divider>

                <el-button icon="el-icon-back" title="撤销" @click="undo"></el-button>
                <el-button icon="el-icon-refresh" title="重做" @click="redo"></el-button>
                <el-button icon="el-icon-brush" title="格式刷" @click="executePainter(false)"
                    @dblclick="executePainter(true)"></el-button>
                <el-button icon="el-icon-remove" @click="clearFormat" title="清除格式"></el-button>
                <el-divider direction="vertical"></el-divider>

                <el-dropdown @command="setFont">
                    <el-button size="small">
                        {{ fontName }} <i class="el-icon-arrow-down el-icon--right"></i>
                    </el-button>
                    <el-dropdown-menu slot="dropdown">
                        <el-dropdown-item v-for="item in fontList" :key="item.value" :command="item.value">
                            {{ item.label }}
                        </el-dropdown-item>
                    </el-dropdown-menu>
                </el-dropdown>

                <el-dropdown @command="setSize">
                    <el-button size="small">
                        {{ sizeName }} <i class="el-icon-arrow-down el-icon--right"></i>
                    </el-button>
                    <el-dropdown-menu slot="dropdown">
                        <el-dropdown-item v-for="item in sizeList" :key="item.value" :command="item.value">
                            {{ item.label }}
                        </el-dropdown-item>
                    </el-dropdown-menu>
                </el-dropdown>
                <el-button icon="el-icon-plus" title="加大字号" @click="sizeAdd"></el-button>
                <el-button icon="el-icon-minus" title="减小字号" @click="sizeSub"></el-button>
                <el-divider direction="vertical"></el-divider>

                <el-button icon="el-icon-mobile" @click="setBold" title="粗体" :class="{ 'btn-active': isBold }"></el-button>
                <el-button icon="el-icon-top-right" @click="setItalic" title="斜体" :class="{ 'btn-active': isItalic }"></el-button>
                <el-dropdown @command="setUnderline">
                    <el-button icon="el-icon-sort"></el-button>
                    <el-dropdown-menu slot="dropdown">
                        <el-dropdown-item v-for="item in underlineList" :key="item.value" :command="item.value">
                            {{ item.label }}
                        </el-dropdown-item>
                    </el-dropdown-menu>
                </el-dropdown>
                <el-button icon="el-icon-remove" @click="setStrikeout" title="删除线"></el-button>
                <el-button icon="el-icon-top" @click="setSuperscript" title="上标"></el-button>
                <el-button icon="el-icon-bottom" @click="setSubscript" title="上下标"></el-button>
                <el-divider direction="vertical"></el-divider>

                <el-color-picker v-model="fontColor" @change="setColor" size="mini"></el-color-picker>
                <el-color-picker v-model="bgColor" @change="setHighlight" size="mini"></el-color-picker>
                <el-divider direction="vertical"></el-divider>

                <el-dropdown @command="setAlign">
                    <el-button icon="el-icon-rank"></el-button>
                    <el-dropdown-menu slot="dropdown">
                        <el-dropdown-item v-for="item in alignList" :key="item.value" :command="item.value">
                            {{ item.label }}
                        </el-dropdown-item>
                    </el-dropdown-menu>
                </el-dropdown>

                <el-dropdown @command="setList">
                    <el-button icon="el-icon-coin"></el-button>
                    <el-dropdown-menu slot="dropdown">
                        <el-dropdown-item v-for="item in listList" :key="item.value" :command="item.value">
                            {{ item.label }}
                        </el-dropdown-item>
                    </el-dropdown-menu>
                </el-dropdown>
                <el-divider direction="vertical"></el-divider>

                <el-button icon="el-icon-picture" @click="$refs.imgInput.click()"></el-button>
                <input ref="imgInput" type="file" hidden accept="image/*" @change="insertImage">
                <el-button icon="el-icon-link" @click="insertLink"></el-button>
                <el-button icon="el-icon-minus" @click="insertSplitLine"></el-button>
                <el-button @click="addWatermark">水印</el-button>
                <el-button icon="el-icon-document" @click="insertPageBreak"></el-button>

                <!-- 搜索按钮 -->
                <el-button icon="el-icon-search" @click="openSearch" ref="searchBtn"></el-button>
                <el-button icon="el-icon-printer" @click="doPrint"></el-button>
            </div>

            <div v-if="showSearch" class="search-popup" :style="{ top: searchTop + 'px', left: searchLeft + 'px' }">
                <div class="search-header">
                    <i class="el-icon-close" @click="closeSearch"></i>
                </div>

                <!-- 查找输入框（实时搜索 + 上下翻页） -->
                <el-input v-model="searchForm.key" placeholder="查找内容" @input="doSearch" @keyup.enter.native="doSearch"
                    style="margin-bottom:8px">
                    <template slot="append">
                        <el-button size="small" icon="el-icon-top" @click="doSearchPrev"></el-button>
                        <el-button size="small" icon="el-icon-bottom" @click="doSearchNext"></el-button>
                    </template>
                </el-input>

                <!-- 🔥 官方同款：匹配数显示（对应 searchResultDom） -->
                <div class="search-result" ref="searchResultDom"
                    style="text-align:right;font-size:12px;color:#606266;margin-bottom:8px">
                    {{ searchInfo.index }}/{{ searchInfo.count }}
                </div>

                <!-- 替换输入框 -->
                <el-input v-model="searchForm.replace" placeholder="替换内容" style="margin-bottom:8px"></el-input>

                <!-- 选项（完全对应官方） -->
                <div class="search-options">
                    <el-checkbox v-model="searchOptions.isRegex">正则</el-checkbox>
                    <el-checkbox v-model="searchOptions.ignoreCase">忽略大小写</el-checkbox>
                    <el-checkbox v-model="searchOptions.inSelection">选定内容内查找</el-checkbox>
                </div>

                <!-- 替换按钮 -->
                <div class="search-actions">
                    <el-button size="small" @click="doReplace">替换</el-button>
                    <el-button size="small" @click="doReplaceAll">全部替换</el-button>
                </div>
            </div>

            <!-- 编辑器 -->
            <div class="canvas-editor" style="width:1000px;height:1000px;margin:20px auto;"></div>

            <!-- 超链接弹窗 -->
            <el-dialog title="插入超链接" :visible.sync="linkDialogVisible" append-to-body>
                <el-form label-width="80px">
                    <el-form-item label="文字"><el-input v-model="selectedLinkText" /></el-form-item>
                    <el-form-item label="地址"><el-input v-model="linkUrl" /></el-form-item>
                </el-form>
                <template #footer>
                    <el-button @click="linkDialogVisible = false">取消</el-button>
                    <el-button type="primary"
                        @click="handleLinkConfirm({ text: selectedLinkText, url: linkUrl })">确认</el-button>
                </template>
            </el-dialog>
        </div>
    </div>
</template>

<script>
import Editor from '@hufe921/canvas-editor'

export default {
    data() {
        return {
            instance: null,
            fontName: '微软雅黑',
            sizeName: '小四',
            fontColor: '#000',
            bgColor: '#ff0',
            showSearch: false,
            searchTop: 0,
            searchLeft: 0,
            searchForm: { key: '', replace: '' },
            searchOptions: { isIgnoreCase: true },
            fontList: [
                { label: '微软雅黑', value: 'Microsoft YaHei' }, { label: '宋体', value: 'SimSun' },
                { label: '黑体', value: 'SimHei' }, { label: '楷体', value: 'KaiTi' },
                { label: '仿宋', value: 'FangSong' }, { label: '华文宋体', value: '华文宋体' },
                { label: '华文黑体', value: '华文黑体' }, { label: '华文仿宋', value: '华文仿宋' },
                { label: '华文楷体', value: '华文楷体' }, { label: '华文琥珀', value: '华文琥珀' },
                { label: '华文隶书', value: '华文隶书' }, { label: '华文新魏', value: '华文新魏' },
                { label: '华文行楷', value: '华文行楷' }, { label: '华文中宋', value: '华文中宋' },
                { label: '华文彩云', value: '华文彩云' }, { label: 'Arial', value: 'Arial' },
                { label: 'Segoe UI', value: 'Segoe UI' }, { label: 'Ink Free', value: 'Ink Free' }, { label: 'Fantasy', value: 'Fantasy' }
            ],
            sizeList: [
                { label: '初号', value: 56 }, { label: '小初', value: 48 },
                { label: '一号', value: 34 }, { label: '小一', value: 32 },
                { label: '二号', value: 29 }, { label: '小二', value: 24 },
                { label: '三号', value: 21 }, { label: '小三', value: 20 },
                { label: '四号', value: 18 }, { label: '小四', value: 16 },
                { label: '五号', value: 14 }, { label: '小五', value: 12 },
                { label: '六号', value: 10 }, { label: '小六', value: 8 },
                { label: '七号', value: 7 }, { label: '八号', value: 6 }
            ],
            underlineList: [
                { label: '实线', value: 'solid' }, { label: '双线', value: 'double' },
                { label: '波浪线', value: 'wavy' }, { label: '点线', value: 'dotted' }, { label: '虚线', value: 'dashed' },
            ],
            listList: [
                { label: '有序', value: 'ol,ordered' }, { label: '实心圆', value: 'ul,disc' },
                { label: '复选', value: 'ul,checkbox' }, { label: '空心圆', value: 'ul,circle' }, { label: '空心块', value: 'ul,square' },
            ],
            alignList: [
                { label: '左对齐', value: 'left' }, { label: '居中对齐', value: 'center' },
                { label: '右对齐', value: 'right' }, { label: '两端对齐', value: 'justify' },
            ],
            linkDialogVisible: false,
            selectedLinkText: '',
            linkUrl: '',
            searchInfo: { index: 0, count: 0 },
            isBold: false,
            isItalic: false,
            isUnderline: false,
            isStrikeout: false,
            isSuperscript: false,
            isSubscript: false,
            currentAlign: 'left',
            currentListType: null,
            currentListStyle: null,
        }
    },
    mounted() {
        this.init()
    },
    methods: {
        init() {
            this.instance = new Editor(document.querySelector('.canvas-editor'), {
                main: [{ value: '请输入内容\n' }],
                contextmenu: true
            })
            this.instance.eventBus.on('rangeStyleChange', (payload) => {
                this.syncToolbar(payload)
            })
        },
        // 同步工具栏状态
        // 官方原版：同步工具栏样式
        syncToolbar(payload) {
            if (!payload || payload.type === null) return

            // ======================
            // 1. 同步字体（正确回显）
            // ======================
            if (payload.font) {
                const fontItem = this.fontList.find(item => item.value === payload.font)
                this.fontName = fontItem ? fontItem.label : payload.font
            }

            // ======================
            // 2. 同步字号（区间匹配最小）
            // ======================
            if (payload.size) {
                const validSizes = this.sizeList
                    .filter(item => item.value <= payload.size)
                    .sort((a, b) => b.value - a.value)
                this.sizeName = validSizes[0]?.label || '小四'
            }

            // ======================
            // 3. 同步颜色（修复不生效）
            // ======================
            if (payload.color !== undefined) {
                this.fontColor = payload.color || '#000000'
            }
            if (payload.highlight !== undefined) {
                this.bgColor = payload.highlight || '#ffffff'
            }

            // ======================
            // 4. 同步文字样式
            // ======================
            this.isBold = !!payload.bold
            this.isItalic = !!payload.italic
            this.isUnderline = payload.underline === true
            this.isStrikeout = !!payload.strikeout
            this.isSuperscript = payload.type === 'superscript'
            this.isSubscript = payload.type === 'subscript'

            // ======================
            // 5. 同步段落对齐
            // ======================
            if (payload.rowFlex !== undefined) {
                this.currentAlign = payload.rowFlex
            }

            // ======================
            // 6. 同步列表
            // ======================
            if (payload.listType !== undefined) {
                this.currentListType = payload.listType
                this.currentListStyle = payload.listStyle || null
            } else {
                this.currentListType = null
                this.currentListStyle = null
            }
        },
        executePainter(isDblclick) { this.instance.command.executePainter(isDblclick) },
        clearFormat() { this.instance.command.executeFormat() },
        undo() { this.instance.command.executeUndo() },
        redo() { this.instance.command.executeRedo() },
        setFont(val) { this.fontName = val; this.instance.command.executeFont(val) },
        setSize(val) {
            const map = { 56: '初号', 48: '小初', 34: '一号', 16: '小四', 14: '五号' }
            this.sizeName = map[val] || val
            this.instance.command.executeSize(val)
        },
        sizeAdd() { this.instance.command.executeSizeAdd() },
        sizeSub() { this.instance.command.executeSizeMinus() },
        setBold() { this.instance.command.executeBold() },
        setItalic() { this.instance.command.executeItalic() },
        setUnderline(val) { this.instance.command.executeUnderline({ style: val }) },
        setStrikeout() { this.instance.command.executeStrikeout() },
        setSuperscript() { this.instance.command.executeSuperscript() },
        setSubscript() { this.instance.command.executeSubscript() },
        setColor(val) { this.instance.command.executeColor(val) },
        setHighlight(val) { this.instance.command.executeHighlight(val) },
        setAlign(val) { this.instance.command.executeRowFlex(val) },
        setList(val) {
            const [type, style] = val.split(',')
            this.instance.command.executeList(type, style)
        },
        insertImage(e) {
            const file = e.target.files[0]
            if (!file) return
            const reader = new FileReader()
            reader.onload = (ev) => {
                const img = new Image()
                img.src = ev.target.result
                img.onload = () => {
                    this.instance.command.executeImage({
                        value: ev.target.result,
                        width: img.width,
                        height: img.height
                    })
                }
            }
            reader.readAsDataURL(file)
            e.target.value = ''
        },
        insertLink() {
            this.selectedLinkText = this.instance.command.getRangeText() || ''
            this.linkUrl = ''
            this.linkDialogVisible = true
        },
        handleLinkConfirm(data) {
            const { text, url } = data
            this.linkDialogVisible = false
            if (!url) return
            const size = this.sizeList.find(s => s.label === this.sizeName)?.value || 16
            this.instance.command.executeHyperlink({
                type: 'hyperlink',
                url: url,
                valueList: text.split('').map(t => ({ value: t, size }))
            })
        },
        insertSplitLine() { this.instance.command.executeSeparator([1]) },
        addWatermark() { this.instance.command.executeAddWatermark({ data: '内部资料' }) },
        insertPageBreak() { this.instance.command.executePageBreak() },
        openSearch() {
            const rect = this.$refs.searchBtn.$el.getBoundingClientRect()
            this.searchTop = rect.bottom + 10
            this.searchLeft = rect.left - 200
            this.showSearch = true
        },
        closeSearch() {
            this.showSearch = false; this.instance.command.executeSearchExit(); this.setSearchResult()
        },
        doSearch() { this.instance.command.executeSearch(this.searchForm.key, this.searchOptions); this.setSearchResult() },
        doSearchPrev() { this.instance.command.executeSearchNavigatePre(); this.setSearchResult() },
        doSearchNext() { this.instance.command.executeSearchNavigateNext(); this.setSearchResult() },
        doReplace() { this.instance.command.executeReplace(this.searchForm.replace, { index: this.searchInfo.index == 0 ? 0 : this.searchInfo.index - 1 }); this.setSearchResult() },
        doReplaceAll() { this.instance.command.executeReplace(this.searchForm.replace); this.setSearchResult() },
        setSearchResult() {
            const result = this.instance.command.getSearchNavigateInfo()
            if (result) {
                this.searchInfo = result
            } else {
                this.searchInfo = { index: 0, count: 0 }
            }
        },
        doPrint() { this.instance.command.executePrint() },
        getAllData() {
            console.log('HTML', this.instance.command.getHTML())
            console.log('TEXT', this.instance.command.getText())
            this.$message.success('获取成功')
        }
    }
}
</script>

<style lang="scss" scoped>
.editor-toolbar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 10px;
    background: #f5f7fa;
    border: 1px solid #e4e7ed;
    flex-wrap: wrap;
}

::v-deep .el-divider--vertical {
    height: 20px;
    margin: 0 5px;
}

.search-popup {
    position: fixed;
    z-index: 9999;
    background: #fff;
    border-radius: 6px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    padding: 12px;
    width: 420px;
}

::v-deep .btn-active {
  background-color: #ecf5ff !important;
  color: #409eff !important;
  border-color: #d9ecff !important;
}
// 颜色选择器激活
::v-deep .el-color-picker.btn-active {
  background: #ecf5ff;
  border-color: #d9ecff;
}

</style>