Method setOptions

src/js/tether.js:140–207

(options, pos = true)

  }

  setOptions(options, pos = true) {
    const defaults = {
      offset: '0 0',
      targetOffset: '0 0',
      targetAttachment: 'auto auto',
      classPrefix: 'tether',
      bodyElement: document.body
    };

    this.options = extend(defaults, options);

    let { element, target, targetModifier, bodyElement } = this.options;
    this.element = element;
    this.target = target;
    this.targetModifier = targetModifier;

    if (typeof bodyElement === 'string') {
      bodyElement = document.querySelector(bodyElement);
    }
    this.bodyElement = bodyElement;

    if (this.target === 'viewport') {
      this.target = document.body;
      this.targetModifier = 'visible';
    } else if (this.target === 'scroll-handle') {
      this.target = document.body;
      this.targetModifier = 'scroll-handle';
    }

    ['element', 'target'].forEach((key) => {
      if (isUndefined(this[key])) {
        throw new Error(
          'Tether Error: Both element and target must be defined'
        );
      }

      if (!isUndefined(this[key].jquery)) {
        this[key] = this[key][0];
      } else if (isString(this[key])) {
        this[key] = document.querySelector(this[key]);
      }
    });

    this._addClasses();

    if (!this.options.attachment) {
      throw new Error('Tether Error: You must provide an attachment');
    }

    this.targetAttachment = parseTopLeft(this.options.targetAttachment);
    this.attachment = parseTopLeft(this.options.attachment);
    this.offset = parseTopLeft(this.options.offset);
    this.targetOffset = parseTopLeft(this.options.targetOffset);

    if (!isUndefined(this.scrollParents)) {
      this.disable();
    }