vue - 將密碼輸入字段復制到剪貼板

Question

我的 vue 應用程序中有一個表單輸入，用於創建密碼。 我已經成功添加了一個按鈕來顯示/隱藏密碼。 我想將副本添加到剪貼板 function 以讓用戶將密碼復制並粘貼到安全的地方，但它不起作用。 我在這里做錯了什么？

模板代碼

      <small class="font-wieght-bold text-success mb-0" v-if="isCopied">Copied</small>
      
      <div class="input-group">
        <input :type="showPassword ? 'text' : 'password'" class="form-control" ref="password" required v-model="password">
        <div class="input-group-append">
          <button class="btn btn-secondary" @click.prevent="copyToClipboard()"><i class="fas fa-clipboard"></i></button>
        </div>
      </div>

Vue代碼

    viewPassword() {
      this.showPassword = !this.showPassword;
    },
    copyToClipboard() {
      this.$refs.password.select();
      document.execCommand('copy');
      this.isCopied = true;
      setTimeout( () => { this.isCopied = !this.isCopied },3000);
    }

Answer 1

您需要復制 v-model 的內容，而不是輸入本身。

您可以像這樣使用 function 從變量中復制。

它創建一個新文本框，使用復制命令，然后立即將其刪除。 所有這些都在一個事件循環中，因此它甚至永遠不會呈現。

const copyTextToClipboard = (text) => {
  const textArea = document.createElement('textarea')

  //
  // *** This styling is an extra step which is likely not required. ***
  //
  // Why is it here? To ensure:
  // 1. the element is able to have focus and selection.
  // 2. if element was to flash render it has minimal visual impact.
  // 3. less flakyness with selection and copying which **might** occur if
  //    the textarea element is not visible.
  //
  // The likelihood is the element won't even render, not even a flash,
  // so some of these are just precautions. However in IE the element
  // is visible whilst the popup box asking the user for permission for
  // the web page to copy to the clipboard.
  //

  // Place in top-left corner of screen regardless of scroll position.
  textArea.style.position = 'fixed'
  textArea.style.top = '0'
  textArea.style.left = '0'

  // Ensure it has a small width and height. Setting to 1px / 1em
  // doesn't work as this gives a negative w/h on some browsers.
  textArea.style.width = '2em'
  textArea.style.height = '2em'

  // We don't need padding, reducing the size if it does flash render.
  textArea.style.padding = 0

  // Clean up any borders.
  textArea.style.border = 'none'
  textArea.style.outline = 'none'
  textArea.style.boxShadow = 'none'

  // Avoid flash of white box if rendered for any reason.
  textArea.style.background = 'transparent'

  textArea.value = text

  document.body.appendChild(textArea)

  textArea.select()

  try {
    const successful = document.execCommand('copy')
    const msg = successful ? 'successful' : 'unsuccessful'
    console.log('Copying text command was ' + msg)
  } catch (err) {
    console.log('Oops, unable to copy')
  }

  document.body.removeChild(textArea)
}

Answer 2

作為已接受答案之一的替代解決方案，我嘗試使用剪貼板 API 。 特別是我使用了clipboard.writeText()方法將 v-modeled 數據直接復制到剪貼板中，它也可以與<input type="password">一起使用。這是copyToClipboard()方法的重構代碼：

    copyToClipboard() {
      navigator.clipboard.writeText(this.password);
      this.isCopied = true;
      setTimeout( () => { this.isCopied = !this.isCopied },3000);
    }