Function fallback

src/options.js:415–444

* Gets called when the browser is not supported. * The default implementation shows the fallback input field and adds * a text.

()

   * a text.
   */
  fallback() {
    // This code should pass in IE7... :(
    let messageElement;
    this.element.className = `${this.element.className} dz-browser-not-supported`;

    for (let child of this.element.getElementsByTagName("div")) {
      if (/(^| )dz-message($| )/.test(child.className)) {
        messageElement = child;
        child.className = "dz-message"; // Removes the 'dz-default' class
        break;
      }
    }
    if (!messageElement) {
      messageElement = Dropzone.createElement(
        '<div class="dz-message"><span></span></div>'
      );
      this.element.appendChild(messageElement);
    }

    let span = messageElement.getElementsByTagName("span")[0];
    if (span) {
      if (span.textContent != null) {
        span.textContent = this.options.dictFallbackMessage;
      } else if (span.innerText != null) {
        span.innerText = this.options.dictFallbackMessage;
      }
    }

    return this.element.appendChild(this.getFallbackForm());
  },

  /**
   * Gets called to calculate the thumbnail dimensions.