ProfessionalWiki / Bootstrap

resources/bootstrap/js/modal.js

/*!
  * Bootstrap modal.js v4.6.2 (https://getbootstrap.com/)
  * Copyright 2011-2022 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  */
(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('jquery'), require('./util.js')) :
  typeof define === 'function' && define.amd ? define(['jquery', './util'], factory) :

The variable define seems to be never declared. If this is a global, consider adding a /** global: define */ comment.

  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Modal = factory(global.jQuery, global.Util));

The variable globalThis seems to be never declared. If this is a global, consider adding a /** global: globalThis */ comment.

If you intend to check if the variable self is declared in the current environment, consider using typeof self === "undefined" instead. This is safe if the variable is not actually declared.

Usage of the sequence operator is discouraged, since it may lead to obfuscated code.

})(this, (function ($, Util) { 'use strict';

  function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }

  var $__default = /*#__PURE__*/_interopDefaultLegacy($);
  var Util__default = /*#__PURE__*/_interopDefaultLegacy(Util);

  function _defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;

Curly braces around statements make for more readable code and help prevent bugs when you add further statements.

      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }

  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);

Curly braces around statements make for more readable code and help prevent bugs when you add further statements.

    if (staticProps) _defineProperties(Constructor, staticProps);

Curly braces around statements make for more readable code and help prevent bugs when you add further statements.

    Object.defineProperty(Constructor, "prototype", {
      writable: false
    });
    return Constructor;
  }

  function _extends() {
    _extends = Object.assign ? Object.assign.bind() : function (target) {

It seems like you are trying to overwrite a function name here. _extends is already defined in line 36 as a function. While this will work, it can be very confusing.

      for (var i = 1; i < arguments.length; i++) {
        var source = arguments[i];

        for (var key in source) {

A for in loop automatically includes the property of any prototype object, consider checking the key using hasOwnProperty.

          if (Object.prototype.hasOwnProperty.call(source, key)) {
            target[key] = source[key];
          }
        }
      }

      return target;
    };
    return _extends.apply(this, arguments);
  }

  /**
   * Constants
   */

  var NAME = 'modal';
  var VERSION = '4.6.2';
  var DATA_KEY = 'bs.modal';
  var EVENT_KEY = "." + DATA_KEY;
  var DATA_API_KEY = '.data-api';
  var JQUERY_NO_CONFLICT = $__default["default"].fn[NAME];
  var ESCAPE_KEYCODE = 27; // KeyboardEvent.which value for Escape (Esc) key

  var CLASS_NAME_SCROLLABLE = 'modal-dialog-scrollable';
  var CLASS_NAME_SCROLLBAR_MEASURER = 'modal-scrollbar-measure';
  var CLASS_NAME_BACKDROP = 'modal-backdrop';
  var CLASS_NAME_OPEN = 'modal-open';
  var CLASS_NAME_FADE = 'fade';
  var CLASS_NAME_SHOW = 'show';
  var CLASS_NAME_STATIC = 'modal-static';
  var EVENT_HIDE = "hide" + EVENT_KEY;
  var EVENT_HIDE_PREVENTED = "hidePrevented" + EVENT_KEY;
  var EVENT_HIDDEN = "hidden" + EVENT_KEY;
  var EVENT_SHOW = "show" + EVENT_KEY;
  var EVENT_SHOWN = "shown" + EVENT_KEY;
  var EVENT_FOCUSIN = "focusin" + EVENT_KEY;
  var EVENT_RESIZE = "resize" + EVENT_KEY;
  var EVENT_CLICK_DISMISS = "click.dismiss" + EVENT_KEY;
  var EVENT_KEYDOWN_DISMISS = "keydown.dismiss" + EVENT_KEY;
  var EVENT_MOUSEUP_DISMISS = "mouseup.dismiss" + EVENT_KEY;
  var EVENT_MOUSEDOWN_DISMISS = "mousedown.dismiss" + EVENT_KEY;
  var EVENT_CLICK_DATA_API = "click" + EVENT_KEY + DATA_API_KEY;
  var SELECTOR_DIALOG = '.modal-dialog';
  var SELECTOR_MODAL_BODY = '.modal-body';
  var SELECTOR_DATA_TOGGLE = '[data-toggle="modal"]';
  var SELECTOR_DATA_DISMISS = '[data-dismiss="modal"]';
  var SELECTOR_FIXED_CONTENT = '.fixed-top, .fixed-bottom, .is-fixed, .sticky-top';
  var SELECTOR_STICKY_CONTENT = '.sticky-top';
  var Default = {
    backdrop: true,
    keyboard: true,
    focus: true,
    show: true
  };
  var DefaultType = {
    backdrop: '(boolean|string)',
    keyboard: 'boolean',
    focus: 'boolean',
    show: 'boolean'
  };
  /**
   * Class definition
   */

  var Modal = /*#__PURE__*/function () {
    function Modal(element, config) {
      this._config = this._getConfig(config);
      this._element = element;
      this._dialog = element.querySelector(SELECTOR_DIALOG);
      this._backdrop = null;
      this._isShown = false;
      this._isBodyOverflowing = false;
      this._ignoreBackdropClick = false;
      this._isTransitioning = false;
      this._scrollbarWidth = 0;
    } // Getters


    var _proto = Modal.prototype;

    // Public
    _proto.toggle = function toggle(relatedTarget) {
      return this._isShown ? this.hide() : this.show(relatedTarget);
    };

    _proto.show = function show(relatedTarget) {
      var _this = this;

      if (this._isShown || this._isTransitioning) {
        return;
      }

      var showEvent = $__default["default"].Event(EVENT_SHOW, {
        relatedTarget: relatedTarget
      });
      $__default["default"](this._element).trigger(showEvent);

      if (showEvent.isDefaultPrevented()) {
        return;
      }

      this._isShown = true;

      if ($__default["default"](this._element).hasClass(CLASS_NAME_FADE)) {
        this._isTransitioning = true;
      }

      this._checkScrollbar();

      this._setScrollbar();

      this._adjustDialog();

      this._setEscapeEvent();

      this._setResizeEvent();

      $__default["default"](this._element).on(EVENT_CLICK_DISMISS, SELECTOR_DATA_DISMISS, function (event) {
        return _this.hide(event);
      });
      $__default["default"](this._dialog).on(EVENT_MOUSEDOWN_DISMISS, function () {
        $__default["default"](_this._element).one(EVENT_MOUSEUP_DISMISS, function (event) {
          if ($__default["default"](event.target).is(_this._element)) {
            _this._ignoreBackdropClick = true;
          }
        });
      });

      this._showBackdrop(function () {
        return _this._showElement(relatedTarget);
      });
    };

    _proto.hide = function hide(event) {
      var _this2 = this;

      if (event) {
        event.preventDefault();
      }

      if (!this._isShown || this._isTransitioning) {
        return;
      }

      var hideEvent = $__default["default"].Event(EVENT_HIDE);
      $__default["default"](this._element).trigger(hideEvent);

      if (!this._isShown || hideEvent.isDefaultPrevented()) {
        return;
      }

      this._isShown = false;
      var transition = $__default["default"](this._element).hasClass(CLASS_NAME_FADE);

      if (transition) {
        this._isTransitioning = true;
      }

      this._setEscapeEvent();

      this._setResizeEvent();

      $__default["default"](document).off(EVENT_FOCUSIN);
      $__default["default"](this._element).removeClass(CLASS_NAME_SHOW);
      $__default["default"](this._element).off(EVENT_CLICK_DISMISS);
      $__default["default"](this._dialog).off(EVENT_MOUSEDOWN_DISMISS);

      if (transition) {
        var transitionDuration = Util__default["default"].getTransitionDurationFromElement(this._element);
        $__default["default"](this._element).one(Util__default["default"].TRANSITION_END, function (event) {
          return _this2._hideModal(event);
        }).emulateTransitionEnd(transitionDuration);
      } else {
        this._hideModal();
      }
    };

    _proto.dispose = function dispose() {
      [window, this._element, this._dialog].forEach(function (htmlElement) {
        return $__default["default"](htmlElement).off(EVENT_KEY);
      });
      /**
       * `document` has 2 events `EVENT_FOCUSIN` and `EVENT_CLICK_DATA_API`
       * Do not move `document` in `htmlElements` array
       * It will remove `EVENT_CLICK_DATA_API` event that should remain
       */

      $__default["default"](document).off(EVENT_FOCUSIN);
      $__default["default"].removeData(this._element, DATA_KEY);
      this._config = null;
      this._element = null;
      this._dialog = null;
      this._backdrop = null;
      this._isShown = null;
      this._isBodyOverflowing = null;
      this._ignoreBackdropClick = null;
      this._isTransitioning = null;
      this._scrollbarWidth = null;
    };

    _proto.handleUpdate = function handleUpdate() {
      this._adjustDialog();
    } // Private
    ;

    _proto._getConfig = function _getConfig(config) {
      config = _extends({}, Default, config);
      Util__default["default"].typeCheckConfig(NAME, config, DefaultType);
      return config;
    };

    _proto._triggerBackdropTransition = function _triggerBackdropTransition() {
      var _this3 = this;

      var hideEventPrevented = $__default["default"].Event(EVENT_HIDE_PREVENTED);
      $__default["default"](this._element).trigger(hideEventPrevented);

      if (hideEventPrevented.isDefaultPrevented()) {
        return;
      }

      var isModalOverflowing = this._element.scrollHeight > document.documentElement.clientHeight;

      if (!isModalOverflowing) {
        this._element.style.overflowY = 'hidden';
      }

      this._element.classList.add(CLASS_NAME_STATIC);

      var modalTransitionDuration = Util__default["default"].getTransitionDurationFromElement(this._dialog);
      $__default["default"](this._element).off(Util__default["default"].TRANSITION_END);
      $__default["default"](this._element).one(Util__default["default"].TRANSITION_END, function () {
        _this3._element.classList.remove(CLASS_NAME_STATIC);

        if (!isModalOverflowing) {
          $__default["default"](_this3._element).one(Util__default["default"].TRANSITION_END, function () {
            _this3._element.style.overflowY = '';
          }).emulateTransitionEnd(_this3._element, modalTransitionDuration);
        }
      }).emulateTransitionEnd(modalTransitionDuration);

      this._element.focus();
    };

    _proto._showElement = function _showElement(relatedTarget) {
      var _this4 = this;

      var transition = $__default["default"](this._element).hasClass(CLASS_NAME_FADE);
      var modalBody = this._dialog ? this._dialog.querySelector(SELECTOR_MODAL_BODY) : null;

      if (!this._element.parentNode || this._element.parentNode.nodeType !== Node.ELEMENT_NODE) {

The variable Node seems to be never declared. If this is a global, consider adding a /** global: Node */ comment.

        // Don't move modal's DOM position
        document.body.appendChild(this._element);
      }

      this._element.style.display = 'block';

      this._element.removeAttribute('aria-hidden');

      this._element.setAttribute('aria-modal', true);

      this._element.setAttribute('role', 'dialog');

      if ($__default["default"](this._dialog).hasClass(CLASS_NAME_SCROLLABLE) && modalBody) {
        modalBody.scrollTop = 0;
      } else {
        this._element.scrollTop = 0;
      }

      if (transition) {
        Util__default["default"].reflow(this._element);
      }

      $__default["default"](this._element).addClass(CLASS_NAME_SHOW);

      if (this._config.focus) {
        this._enforceFocus();
      }

      var shownEvent = $__default["default"].Event(EVENT_SHOWN, {
        relatedTarget: relatedTarget
      });

      var transitionComplete = function transitionComplete() {
        if (_this4._config.focus) {
          _this4._element.focus();
        }

        _this4._isTransitioning = false;
        $__default["default"](_this4._element).trigger(shownEvent);
      };

      if (transition) {
        var transitionDuration = Util__default["default"].getTransitionDurationFromElement(this._dialog);
        $__default["default"](this._dialog).one(Util__default["default"].TRANSITION_END, transitionComplete).emulateTransitionEnd(transitionDuration);
      } else {
        transitionComplete();
      }
    };

    _proto._enforceFocus = function _enforceFocus() {
      var _this5 = this;

      $__default["default"](document).off(EVENT_FOCUSIN) // Guard against infinite focus loop
      .on(EVENT_FOCUSIN, function (event) {
        if (document !== event.target && _this5._element !== event.target && $__default["default"](_this5._element).has(event.target).length === 0) {
          _this5._element.focus();
        }
      });
    };

    _proto._setEscapeEvent = function _setEscapeEvent() {
      var _this6 = this;

      if (this._isShown) {
        $__default["default"](this._element).on(EVENT_KEYDOWN_DISMISS, function (event) {
          if (_this6._config.keyboard && event.which === ESCAPE_KEYCODE) {
            event.preventDefault();

            _this6.hide();
          } else if (!_this6._config.keyboard && event.which === ESCAPE_KEYCODE) {
            _this6._triggerBackdropTransition();
          }
        });
      } else if (!this._isShown) {
        $__default["default"](this._element).off(EVENT_KEYDOWN_DISMISS);
      }
    };

    _proto._setResizeEvent = function _setResizeEvent() {
      var _this7 = this;

      if (this._isShown) {
        $__default["default"](window).on(EVENT_RESIZE, function (event) {
          return _this7.handleUpdate(event);
        });
      } else {
        $__default["default"](window).off(EVENT_RESIZE);
      }
    };

    _proto._hideModal = function _hideModal() {
      var _this8 = this;

      this._element.style.display = 'none';

      this._element.setAttribute('aria-hidden', true);

      this._element.removeAttribute('aria-modal');

      this._element.removeAttribute('role');

      this._isTransitioning = false;

      this._showBackdrop(function () {
        $__default["default"](document.body).removeClass(CLASS_NAME_OPEN);

        _this8._resetAdjustments();

        _this8._resetScrollbar();

        $__default["default"](_this8._element).trigger(EVENT_HIDDEN);
      });
    };

    _proto._removeBackdrop = function _removeBackdrop() {
      if (this._backdrop) {
        $__default["default"](this._backdrop).remove();
        this._backdrop = null;
      }
    };

    _proto._showBackdrop = function _showBackdrop(callback) {
      var _this9 = this;

      var animate = $__default["default"](this._element).hasClass(CLASS_NAME_FADE) ? CLASS_NAME_FADE : '';

      if (this._isShown && this._config.backdrop) {
        this._backdrop = document.createElement('div');
        this._backdrop.className = CLASS_NAME_BACKDROP;

        if (animate) {
          this._backdrop.classList.add(animate);
        }

        $__default["default"](this._backdrop).appendTo(document.body);
        $__default["default"](this._element).on(EVENT_CLICK_DISMISS, function (event) {
          if (_this9._ignoreBackdropClick) {
            _this9._ignoreBackdropClick = false;
            return;
          }

          if (event.target !== event.currentTarget) {
            return;
          }

          if (_this9._config.backdrop === 'static') {
            _this9._triggerBackdropTransition();
          } else {
            _this9.hide();
          }
        });

        if (animate) {
          Util__default["default"].reflow(this._backdrop);
        }

        $__default["default"](this._backdrop).addClass(CLASS_NAME_SHOW);

        if (!callback) {
          return;
        }

        if (!animate) {
          callback();
          return;
        }

        var backdropTransitionDuration = Util__default["default"].getTransitionDurationFromElement(this._backdrop);
        $__default["default"](this._backdrop).one(Util__default["default"].TRANSITION_END, callback).emulateTransitionEnd(backdropTransitionDuration);
      } else if (!this._isShown && this._backdrop) {
        $__default["default"](this._backdrop).removeClass(CLASS_NAME_SHOW);

        var callbackRemove = function callbackRemove() {
          _this9._removeBackdrop();

          if (callback) {
            callback();
          }
        };

        if ($__default["default"](this._element).hasClass(CLASS_NAME_FADE)) {
          var _backdropTransitionDuration = Util__default["default"].getTransitionDurationFromElement(this._backdrop);

          $__default["default"](this._backdrop).one(Util__default["default"].TRANSITION_END, callbackRemove).emulateTransitionEnd(_backdropTransitionDuration);
        } else {
          callbackRemove();
        }
      } else if (callback) {
        callback();
      }
    } // ----------------------------------------------------------------------
    // the following methods are used to handle overflowing modals
    // todo (fat): these should probably be refactored out of modal.js
    // ----------------------------------------------------------------------
    ;

    _proto._adjustDialog = function _adjustDialog() {
      var isModalOverflowing = this._element.scrollHeight > document.documentElement.clientHeight;

      if (!this._isBodyOverflowing && isModalOverflowing) {
        this._element.style.paddingLeft = this._scrollbarWidth + "px";
      }

      if (this._isBodyOverflowing && !isModalOverflowing) {
        this._element.style.paddingRight = this._scrollbarWidth + "px";
      }
    };

    _proto._resetAdjustments = function _resetAdjustments() {
      this._element.style.paddingLeft = '';
      this._element.style.paddingRight = '';
    };

    _proto._checkScrollbar = function _checkScrollbar() {
      var rect = document.body.getBoundingClientRect();
      this._isBodyOverflowing = Math.round(rect.left + rect.right) < window.innerWidth;
      this._scrollbarWidth = this._getScrollbarWidth();
    };

    _proto._setScrollbar = function _setScrollbar() {
      var _this10 = this;

      if (this._isBodyOverflowing) {
        // Note: DOMNode.style.paddingRight returns the actual value or '' if not set
        //   while $(DOMNode).css('padding-right') returns the calculated value or 0 if not set
        var fixedContent = [].slice.call(document.querySelectorAll(SELECTOR_FIXED_CONTENT));
        var stickyContent = [].slice.call(document.querySelectorAll(SELECTOR_STICKY_CONTENT)); // Adjust fixed content padding

        $__default["default"](fixedContent).each(function (index, element) {
          var actualPadding = element.style.paddingRight;
          var calculatedPadding = $__default["default"](element).css('padding-right');
          $__default["default"](element).data('padding-right', actualPadding).css('padding-right', parseFloat(calculatedPadding) + _this10._scrollbarWidth + "px");
        }); // Adjust sticky content margin

        $__default["default"](stickyContent).each(function (index, element) {
          var actualMargin = element.style.marginRight;
          var calculatedMargin = $__default["default"](element).css('margin-right');
          $__default["default"](element).data('margin-right', actualMargin).css('margin-right', parseFloat(calculatedMargin) - _this10._scrollbarWidth + "px");
        }); // Adjust body padding

        var actualPadding = document.body.style.paddingRight;
        var calculatedPadding = $__default["default"](document.body).css('padding-right');
        $__default["default"](document.body).data('padding-right', actualPadding).css('padding-right', parseFloat(calculatedPadding) + this._scrollbarWidth + "px");
      }

      $__default["default"](document.body).addClass(CLASS_NAME_OPEN);
    };

    _proto._resetScrollbar = function _resetScrollbar() {
      // Restore fixed content padding
      var fixedContent = [].slice.call(document.querySelectorAll(SELECTOR_FIXED_CONTENT));
      $__default["default"](fixedContent).each(function (index, element) {
        var padding = $__default["default"](element).data('padding-right');
        $__default["default"](element).removeData('padding-right');
        element.style.paddingRight = padding ? padding : '';
      }); // Restore sticky content

      var elements = [].slice.call(document.querySelectorAll("" + SELECTOR_STICKY_CONTENT));
      $__default["default"](elements).each(function (index, element) {
        var margin = $__default["default"](element).data('margin-right');

        if (typeof margin !== 'undefined') {
          $__default["default"](element).css('margin-right', margin).removeData('margin-right');
        }
      }); // Restore body padding

      var padding = $__default["default"](document.body).data('padding-right');
      $__default["default"](document.body).removeData('padding-right');
      document.body.style.paddingRight = padding ? padding : '';
    };

    _proto._getScrollbarWidth = function _getScrollbarWidth() {
      // thx d.walsh
      var scrollDiv = document.createElement('div');
      scrollDiv.className = CLASS_NAME_SCROLLBAR_MEASURER;
      document.body.appendChild(scrollDiv);
      var scrollbarWidth = scrollDiv.getBoundingClientRect().width - scrollDiv.clientWidth;
      document.body.removeChild(scrollDiv);
      return scrollbarWidth;
    } // Static
    ;

    Modal._jQueryInterface = function _jQueryInterface(config, relatedTarget) {
      return this.each(function () {
        var data = $__default["default"](this).data(DATA_KEY);

        var _config = _extends({}, Default, $__default["default"](this).data(), typeof config === 'object' && config ? config : {});

        if (!data) {
          data = new Modal(this, _config);
          $__default["default"](this).data(DATA_KEY, data);
        }

        if (typeof config === 'string') {
          if (typeof data[config] === 'undefined') {
            throw new TypeError("No method named \"" + config + "\"");
          }

          data[config](relatedTarget);
        } else if (_config.show) {
          data.show(relatedTarget);
        }
      });
    };

    _createClass(Modal, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION;
      }
    }, {
      key: "Default",
      get: function get() {
        return Default;
      }
    }]);

    return Modal;
  }();
  /**
   * Data API implementation
   */


  $__default["default"](document).on(EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE, function (event) {
    var _this11 = this;

    var target;
    var selector = Util__default["default"].getSelectorFromElement(this);

    if (selector) {
      target = document.querySelector(selector);
    }

    var config = $__default["default"](target).data(DATA_KEY) ? 'toggle' : _extends({}, $__default["default"](target).data(), $__default["default"](this).data());

The variable target does not seem to be initialized in case selector on line 623 is false. Are you sure this can never be the case?

    if (this.tagName === 'A' || this.tagName === 'AREA') {
      event.preventDefault();
    }

    var $target = $__default["default"](target).one(EVENT_SHOW, function (showEvent) {
      if (showEvent.isDefaultPrevented()) {
        // Only register focus restorer if modal will actually get shown
        return;
      }

      $target.one(EVENT_HIDDEN, function () {
        if ($__default["default"](_this11).is(':visible')) {
          _this11.focus();
        }
      });
    });

    Modal._jQueryInterface.call($__default["default"](target), config, this);
  });
  /**
   * jQuery
   */

  $__default["default"].fn[NAME] = Modal._jQueryInterface;
  $__default["default"].fn[NAME].Constructor = Modal;

  $__default["default"].fn[NAME].noConflict = function () {
    $__default["default"].fn[NAME] = JQUERY_NO_CONFLICT;
    return Modal._jQueryInterface;
  };

  return Modal;

}));
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