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Vue js - Add text and dropdown box to editable HTML content box

<p>I'm using Vue.js. I'm trying to add text and a dropdown box in an editable HTML div. </p><p>I want to add a dropdown box using a button. This dropdown box can be added anywhere in the text, just like where I place my cursor. </p><p>Now, it almost works, but I can't find a problem. </p><p>When I enter and add multiple dropdown boxes and then press the "Get Data Model" button, it always shows that the dropdown box option I selected is incorrect. I mean it always shows the first option. </p><p>Using this "Get Data Model" button, I am trying to get all the text selected options. </p><p>Here is my code:</p><p><br /></p> <pre class="brush:php;toolbar:false;"><template> <div> <div class="content-editable" contenteditable="true" @input="onInput" ref="contentEditable"></div> <button @click="addDropdown">Add Dropdown</button> <button @click="getDataModel">Get Data Model</button> <div>{{ dataModel }}</div> </div> </template> <script> export default { data() { return { content: '', dropdowns: [], dropdownOptions: ['Option 1', 'Option 2', 'Option 3'], dataModel: '', }; }, methods: { onInput(event) { this.content = event.target.innerHTML.replace(/<div><br></div>/g, ''); }, addDropdown() { const dropdown = { selectedOption: this.dropdownOptions[0], }; this.dropdowns.push(dropdown); const editableDiv = this.$refs.contentEditable; const dropdownSelect = document.createElement('select'); dropdownSelect.style.width = '100px'; this.dropdownOptions.forEach((option) => { const dropdownOption = document.createElement('option'); dropdownOption.value = option; dropdownOption.text = option; dropdownSelect.appendChild(dropdownOption); }); editableDiv.appendChild(dropdownSelect); }, getDataModel() { const editableDiv = this.$refs.contentEditable; const clonedDiv = editableDiv.cloneNode(true); const selectElements = clonedDiv.querySelectorAll('select'); this.dropdowns.forEach((dropdown, index) => { const selectedOption = dropdown.selectedOption; const selectedOptionText = Array.from(selectElements[index].options).find((option) => option.value === selectedOption)?.text; const selectedOptionTextNode = document.createTextNode(` ${selectedOptionText}`); selectElements[index].replaceWith(selectedOptionTextNode); }); this.dataModel = clonedDiv.textContent; }, }, }; </script> <style scoped> .content-editable { border: 1px solid #ccc; padding: 10px; min-height: 100px; margin-bottom: 10px; } </style></pre> <p><br /></p>
P粉288069045P粉288069045513 days ago578

reply all(1)I'll reply

  • P粉321584263

    P粉3215842632023-07-28 10:46:58

    Vue.js is data-driven and adopts MVVM thinking. If you want to create multiple "input" tags, it makes more sense to use v-for instead of dynamically creating the DOM. 

    <!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
    <style scoped>
        .content-editable {
            border: 1px solid #ccc;
            padding: 10px;
            min-height: 100px;
            margin-bottom: 10px;
        }
    </style>
</head>

<body>
    <div id="app">
        <template>
            <div>
                <button @click="addDropdown">creatSelect</button>
                <div v-for="(dropdown, index) in dropdowns" :key="index">
                    <select v-model="dropdown.selectedValue">
                        <option v-for="option in dropdown.options" :value="option.value" :key="option.value">{{
                            option.label }}</option>
                    </select>
                </div>
            </div>
            <button @click="getAllSelectedValues">getValue：</button>
            <div>valueList：{{ allSelectedValues }}</div>
        </template>

    </div>



</body>

</html>
<script>
    var app = new Vue({
        el: '#app',
        data: {
            dropdowns: [],

            dropdownOptions: [
                { value: 'option1', label: 'option1' },
                { value: 'option2', label: 'option2' },
                { value: 'option3', label: 'option3' },
                { value: 'option4', label: 'option4' },
            ],
            allSelectedValues: [],
        },
        methods: {
            addDropdown() {
                this.dropdowns.push({
                    selectedValue: null,
                    options: this.dropdownOptions,
                });
            },
            getAllSelectedValues() {
                this.allSelectedValues = this.dropdowns.map((dropdown) => dropdown.selectedValue);
            },
        },

    })


</script>

    hope this helps!

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