fossasia/loklak_webclient

/* ========================================================================
 * Bootstrap: drawer.js v1.0
 # Heavily based on collapse, but had to change the name to "fold" to
 # avoid transition conflicts.
 * ========================================================================
*/


+function ($) {
  'use strict';

  // OFF CANVAS PUBLIC CLASS DEFINITION
  // ================================

  var Drawer = function (element, options) {
    this.$element      = $(element);
    this.options       = $.extend({}, Drawer.DEFAULTS, options);
    this.$trigger      = $(this.options.trigger).filter('[href="#' + element.id + '"], [data-target="#' + element.id + '"]');
    this.transitioning = null;

    if (this.options.parent) {
      this.$parent = this.getParent();
    } else {
      this.addAriaAndDrawerdClass(this.$element, this.$trigger);
    }

    if (this.options.toggle) { this.toggle(); }
  };

  Drawer.VERSION  = '3.3.2';

  Drawer.TRANSITION_DURATION = 350;

  Drawer.DEFAULTS = {
    toggle: true,
    trigger: '[data-toggle="drawer"]'
  };

  Drawer.prototype.dimension = function () {
    var isRight = this.$element.hasClass('drawer-right');
    return isRight ? 'margin-right' : 'margin-left';
  };

  Drawer.prototype.show = function () {
    if (this.transitioning || this.$element.hasClass('open')) { return; }

    var activesData;
    var actives = this.$parent && this.$parent.children('.panel').children('.in, .collapsing');

    if (actives && actives.length) {
      activesData = actives.data('bs.drawer');
      if (activesData && activesData.transitioning) { return; }
    }

    var startEvent = $.Event('show.bs.drawer');
    this.$element.trigger(startEvent);
    if (startEvent.isDefaultPrevented()) { return; }

    if (actives && actives.length) {
      Plugin.call(actives, 'hide');
      activesData || actives.data('bs.drawer', null);
    }

    var dimension = this.dimension();

    this.$element
      .addClass('folding').css(dimension, 0)
      .attr('aria-expanded', true);

    this.$trigger
      .removeClass('folded')
      .attr('aria-expanded', true);

    this.transitioning = 1;

    var complete = function () {
      this.$element
        .removeClass('folding')
        .addClass('fold open').css(dimension, '');
      this.transitioning = 0;
      this.$element
        .trigger('shown.bs.drawer');
    };

    if (!$.support.transition) { return complete.call(this); }

    this.$element
      .one('bsTransitionEnd', $.proxy(complete, this))
      .emulateTransitionEnd(Drawer.TRANSITION_DURATION).css(dimension, 0);
  };

  Drawer.prototype.hide = function () {
    if (this.transitioning || !this.$element.hasClass('open')) { return; }

    var startEvent = $.Event('hide.bs.drawer');
    this.$element.trigger(startEvent);
    if (startEvent.isDefaultPrevented()) { return; }

    var dimension = this.dimension();

    this.$element
      .addClass('folding')
      .removeClass('open')
      .attr('aria-expanded', false);

    this.$trigger
      .addClass('folded')
      .attr('aria-expanded', false);

    this.transitioning = 1;

    var complete = function () {
      this.transitioning = 0;
      this.$element
        .removeClass('folding')
        .addClass('fold')
        .trigger('hidden.bs.drawer');
    };

    if (!$.support.transition) { return complete.call(this); }

    this.$element
      .css(dimension, '')
      .one('bsTransitionEnd', $.proxy(complete, this))
      .emulateTransitionEnd(Drawer.TRANSITION_DURATION);
  };

  Drawer.prototype.toggle = function () {
    this[this.$element.hasClass('open') ? 'hide' : 'show']();
  };

  Drawer.prototype.getParent = function () {
    return $(this.options.parent)
      .find('[data-toggle="drawer"][data-parent="' + this.options.parent + '"]')
      .each($.proxy(function (i, element) {
        var $element = $(element);
        this.addAriaAndDrawerdClass(getTargetFromTrigger($element), $element);
      }, this))
      .end();
  };

  Drawer.prototype.addAriaAndDrawerdClass = function ($element, $trigger) {
    var isOpen = $element.hasClass('open');

    $element.attr('aria-expanded', isOpen);
    $trigger
      .toggleClass('folded', !isOpen)
      .attr('aria-expanded', isOpen);
  };

  function getTargetFromTrigger($trigger) {
    var href;
    var target = $trigger.attr('data-target') ||
    (href = $trigger.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, ''); // strip for ie7

    return $(target);
  }


  // OFFCANVAS PLUGIN DEFINITION
  // ==========================

  function Plugin(option) {
    return this.each(function () {
      var $this   = $(this);
      var data    = $this.data('bs.drawer');
      var options = $.extend({}, Drawer.DEFAULTS, $this.data(), typeof option === 'object' && option);

      if (!data && options.toggle && option === 'show') { options.toggle = false; }
      if (!data) { $this.data('bs.drawer', (data = new Drawer(this, options))); }
      if (typeof option === 'string') { data[option](); }
    });
  }

  var old = $.fn.fold;

  $.fn.drawer             = Plugin;
  $.fn.drawer.Constructor = Drawer;


  // OFFCANVAS NO CONFLICT
  // ====================

  $.fn.drawer.noConflict = function () {
    $.fn.fold = old;
    return this;
  };


  // OFFCANVAS DATA-API
  // =================

  $(document).on('click.bs.drawer.data-api', '[data-toggle="drawer"]', function (e) {
    var $this   = $(this);

    if (!$this.attr('data-target')) { e.preventDefault(); }

    var $target = getTargetFromTrigger($this);
    var data    = $target.data('bs.drawer');
    var option  = data ? 'toggle' : $.extend({}, $this.data(), { trigger: this });

    Plugin.call($target, option);
  });

}(jQuery);