Getting Started with Vue DropDownButton Component

Smart UI Vue examples target Vue 3 and Vite; enable TypeScript in create-vue when you want typed SFCs.

Demo source (Smart UI repo): vue/vue-3/src/dropdownbutton/events/App.vue

Scaffold with Vite (Vue 3)

Run the official scaffolding tool:

npm create vue@latest

You will be prompted for TypeScript, Router, Pinia, and other options. When unsure, accept defaults and enable features later.

cd <your-project-name>
npm install
npm install smart-webcomponents
npm run dev

Vue + TypeScript

If you enabled TypeScript, use vite.config.ts with the same isCustomElement configuration as below so the compiler treats Smart UI tags as native custom elements.

Teach Vue about custom elements

Without this, Vue warns about unknown custom elements. Open vite.config.js or vite.config.ts and configure the Vue plugin so smart-* and legacy jqx-* tags are passed through to the DOM:

import { fileURLToPath, URL } from 'node:url'

import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'

export default defineConfig({
  plugins: [
    vue({
      template: {
        compilerOptions: {
          isCustomElement: tag => tag.startsWith('smart-') || tag.startsWith('jqx-')
        }
      }
    })
  ],
  resolve: {
    alias: {
      '@': fileURLToPath(new URL('./src', import.meta.url))
    }
  }
})

App.vue example

Example from Smart UI Vue 3 demos for this widget:

<template>
  <div class="vue-root">
    <smart-drop-down-button placeholder="Button">
      What is Lorem Ipsum? Lorem Ipsum is simply dummy text of the printing
      and typesetting industry. Lorem Ipsum has been the industry's standard
      dummy text ever since the 1500s, when an unknown printer took a galley
      of type and scrambled it to make a type specimen book. It has survived
      not only five centuries, but also the leap into electronic typesetting,
      remaining essentially unchanged. It was popularised in the 1960s with the
      release of Letraset sheets containing Lorem Ipsum passages, and more recently
      with desktop publishing software like Aldus PageMaker including versions
      of Lorem Ipsum.
    </smart-drop-down-button>
    <div class="options">
      <div class="caption">Settings</div>
      <div class="option">
        <div>Open Mode:</div>
        <smart-radio-button checked>Default</smart-radio-button>
        <br />
        <smart-radio-button>DropDownButton</smart-radio-button>
      </div>
      <div class="option" id="eventLog">
        <h4>Event log:</h4>
        <div id="log"></div>
      </div>
    </div>
  </div>
</template>

<script>
import { onMounted } from "vue";
import "smart-webcomponents/source/styles/smart.default.css";
import "smart-webcomponents/source/modules/smart.dropdownbutton.js";
import "smart-webcomponents/source/modules/smart.radiobutton.js";

export default {
  name: "app",
  setup() {
    onMounted(() => {
      const radioButtons = document.getElementsByTagName("smart-radio-button"),
        dropDownButton = document.querySelector("smart-drop-down-button");
      radioButtons[0].addEventListener("change", function() {
        dropDownButton.dropDownOpenMode = "default";
        dropDownButton.placeholder = "Button";
      });
      radioButtons[1].addEventListener("change", function() {
        dropDownButton.dropDownOpenMode = "dropDownButton";
        dropDownButton.placeholder = "Action";
      });
      dropDownButton.addEventListener("actionButtonClick", function(event) {
        document.getElementById("log").innerHTML += event.type + "<br />";
      });
      dropDownButton.addEventListener("dropDownButtonClick", function(event) {
        document.getElementById("log").innerHTML += event.type + "<br />";
      });
      dropDownButton.addEventListener("opening", function(event) {
        document.getElementById("log").innerHTML += event.type + "<br />";
      });
      dropDownButton.addEventListener("closing", function(event) {
        document.getElementById("log").innerHTML += event.type + "<br />";
      });
    });
  }
};
</script>

<style>
smart-drop-down-button {
  width: 250px;
}
</style>

You can now use smart-drop-down-button in templates; bindings and events follow Vue's normal syntax.

Run and build

Development server:

npm run dev

Then open http://localhost:5173/.

Production build:

npm run build

Output goes to ./dist.