/*!
 * Timepicker Component for Twitter Bootstrap
 *
 * Copyright 2013 Joris de Wit and bootstrap-timepicker contributors
 *
 * Contributors https://github.com/jdewit/bootstrap-timepicker/graphs/contributors
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
(function($, window, document) {
  'use strict';

  // TIMEPICKER PUBLIC CLASS DEFINITION
  var Timepicker = function(element, options) {
    this.widget = '';
    this.$element = $(element);
    this.defaultTime = options.defaultTime;
    this.disableFocus = options.disableFocus;
    this.disableMousewheel = options.disableMousewheel;
    this.isOpen = options.isOpen;
    this.minuteStep = options.minuteStep;
    this.modalBackdrop = options.modalBackdrop;
    this.orientation = options.orientation;
    this.secondStep = options.secondStep;
    this.snapToStep = options.snapToStep;
    this.showInputs = options.showInputs;
    this.showMeridian = options.showMeridian;
    this.showSeconds = options.showSeconds;
    this.template = options.template;
    this.appendWidgetTo = options.appendWidgetTo;
    this.showWidgetOnAddonClick = options.showWidgetOnAddonClick;
    this.icons = options.icons;
    this.maxHours = options.maxHours;
    this.explicitMode = options.explicitMode; // If true 123 = 1:23, 12345 = 1:23:45, else invalid.

    this.handleDocumentClick = function (e) {
      var self = e.data.scope;
      // This condition was inspired by bootstrap-datepicker.
      // The element the timepicker is invoked on is the input but it has a sibling for addon/button.
      if (!(self.$element.parent().find(e.target).length ||
          self.$widget.is(e.target) ||
          self.$widget.find(e.target).length)) {
        self.hideWidget();
      }
    };

    this._init();
  };

  Timepicker.prototype = {

    constructor: Timepicker,
    _init: function() {
      var self = this;

      if (this.showWidgetOnAddonClick && (this.$element.parent().hasClass('input-group') && this.$element.parent().hasClass('bootstrap-timepicker'))) {
        this.$element.parent('.input-group.bootstrap-timepicker').find('.input-group-addon').on({
          'click.timepicker': $.proxy(this.showWidget, this)
        });
        this.$element.on({
          'focus.timepicker': $.proxy(this.highlightUnit, this),
          'click.timepicker': $.proxy(this.highlightUnit, this),
          'keydown.timepicker': $.proxy(this.elementKeydown, this),
          'blur.timepicker': $.proxy(this.blurElement, this),
          'mousewheel.timepicker DOMMouseScroll.timepicker': $.proxy(this.mousewheel, this)
        });
      } else {
        if (this.template) {
          this.$element.on({
            'focus.timepicker': $.proxy(this.showWidget, this),
            'click.timepicker': $.proxy(this.showWidget, this),
            'blur.timepicker': $.proxy(this.blurElement, this),
            'mousewheel.timepicker DOMMouseScroll.timepicker': $.proxy(this.mousewheel, this)
          });
        } else {
          this.$element.on({
            'focus.timepicker': $.proxy(this.highlightUnit, this),
            'click.timepicker': $.proxy(this.highlightUnit, this),
            'keydown.timepicker': $.proxy(this.elementKeydown, this),
            'blur.timepicker': $.proxy(this.blurElement, this),
            'mousewheel.timepicker DOMMouseScroll.timepicker': $.proxy(this.mousewheel, this)
          });
        }
      }

      if (this.template !== false) {
        this.$widget = $(this.getTemplate()).on('click', $.proxy(this.widgetClick, this));
      } else {
        this.$widget = false;
      }

      if (this.showInputs && this.$widget !== false) {
        this.$widget.find('input').each(function() {
          $(this).on({
            'click.timepicker': function() { $(this).select(); },
            'keydown.timepicker': $.proxy(self.widgetKeydown, self),
            'keyup.timepicker': $.proxy(self.widgetKeyup, self)
          });
        });
      }

      this.setDefaultTime(this.defaultTime);
    },

    blurElement: function() {
      this.highlightedUnit = null;
      this.updateFromElementVal();
    },

    clear: function() {
      this.hour = '';
      this.minute = '';
      this.second = '';
      this.meridian = '';

      this.$element.val('');
    },

    decrementHour: function() {
      if (this.showMeridian) {
        if (this.hour === 1) {
          this.hour = 12;
        } else if (this.hour === 12) {
          this.hour--;

          return this.toggleMeridian();
        } else if (this.hour === 0) {
          this.hour = 11;

          return this.toggleMeridian();
        } else {
          this.hour--;
        }
      } else {
        if (this.hour <= 0) {
          this.hour = this.maxHours - 1;
        } else {
          this.hour--;
        }
      }
    },

    decrementMinute: function(step) {
      var newVal;

      if (step) {
        newVal = this.minute - step;
      } else {
        newVal = this.minute - this.minuteStep;
      }

      if (newVal < 0) {
        this.decrementHour();
        this.minute = newVal + 60;
      } else {
        this.minute = newVal;
      }
    },

    decrementSecond: function() {
      var newVal = this.second - this.secondStep;

      if (newVal < 0) {
        this.decrementMinute(true);
        this.second = newVal + 60;
      } else {
        this.second = newVal;
      }
    },

    elementKeydown: function(e) {
      switch (e.which) {
      case 9: //tab
        if (e.shiftKey) {
          if (this.highlightedUnit === 'hour') {
            this.hideWidget();
            break;
          }
          this.highlightPrevUnit();
        } else if ((this.showMeridian && this.highlightedUnit === 'meridian') || (this.showSeconds && this.highlightedUnit === 'second') || (!this.showMeridian && !this.showSeconds && this.highlightedUnit ==='minute')) {
          this.hideWidget();
          break;
        } else {
          this.highlightNextUnit();
        }
        e.preventDefault();
        this.updateFromElementVal();
        break;
      case 27: // escape
        this.updateFromElementVal();
        break;
      case 37: // left arrow
        e.preventDefault();
        this.highlightPrevUnit();
        this.updateFromElementVal();
        break;
      case 38: // up arrow
        e.preventDefault();
        switch (this.highlightedUnit) {
        case 'hour':
          this.incrementHour();
          this.highlightHour();
          break;
        case 'minute':
          this.incrementMinute();
          this.highlightMinute();
          break;
        case 'second':
          this.incrementSecond();
          this.highlightSecond();
          break;
        case 'meridian':
          this.toggleMeridian();
          this.highlightMeridian();
          break;
        }
        this.update();
        break;
      case 39: // right arrow
        e.preventDefault();
        this.highlightNextUnit();
        this.updateFromElementVal();
        break;
      case 40: // down arrow
        e.preventDefault();
        switch (this.highlightedUnit) {
        case 'hour':
          this.decrementHour();
          this.highlightHour();
          break;
        case 'minute':
          this.decrementMinute();
          this.highlightMinute();
          break;
        case 'second':
          this.decrementSecond();
          this.highlightSecond();
          break;
        case 'meridian':
          this.toggleMeridian();
          this.highlightMeridian();
          break;
        }

        this.update();
        break;
      }
    },

    getCursorPosition: function() {
      var input = this.$element.get(0);

      if ('selectionStart' in input) {// Standard-compliant browsers

        return input.selectionStart;
      } else if (document.selection) {// IE fix
        input.focus();
        var sel = document.selection.createRange(),
          selLen = document.selection.createRange().text.length;

        sel.moveStart('character', - input.value.length);

        return sel.text.length - selLen;
      }
    },

    getTemplate: function() {
      var template,
        hourTemplate,
        minuteTemplate,
        secondTemplate,
        meridianTemplate,
        templateContent;

      if (this.showInputs) {
        hourTemplate = '<input type="text" class="bootstrap-timepicker-hour" maxlength="2"/>';
        minuteTemplate = '<input type="text" class="bootstrap-timepicker-minute" maxlength="2"/>';
        secondTemplate = '<input type="text" class="bootstrap-timepicker-second" maxlength="2"/>';
        meridianTemplate = '<input type="text" class="bootstrap-timepicker-meridian" maxlength="2"/>';
      } else {
        hourTemplate = '<span class="bootstrap-timepicker-hour"></span>';
        minuteTemplate = '<span class="bootstrap-timepicker-minute"></span>';
        secondTemplate = '<span class="bootstrap-timepicker-second"></span>';
        meridianTemplate = '<span class="bootstrap-timepicker-meridian"></span>';
      }

      templateContent = '<table>'+
         '<tr>'+
           '<td><a href="#" data-action="incrementHour"><span class="'+ this.icons.up +'"></span></a></td>'+
           '<td class="separator">&nbsp;</td>'+
           '<td><a href="#" data-action="incrementMinute"><span class="'+ this.icons.up +'"></span></a></td>'+
           (this.showSeconds ?
             '<td class="separator">&nbsp;</td>'+
             '<td><a href="#" data-action="incrementSecond"><span class="'+ this.icons.up +'"></span></a></td>'
           : '') +
           (this.showMeridian ?
             '<td class="separator">&nbsp;</td>'+
             '<td class="meridian-column"><a href="#" data-action="toggleMeridian"><span class="'+ this.icons.up +'"></span></a></td>'
           : '') +
         '</tr>'+
         '<tr>'+
           '<td>'+ hourTemplate +'</td> '+
           '<td class="separator">:</td>'+
           '<td>'+ minuteTemplate +'</td> '+
           (this.showSeconds ?
            '<td class="separator">:</td>'+
            '<td>'+ secondTemplate +'</td>'
           : '') +
           (this.showMeridian ?
            '<td class="separator">&nbsp;</td>'+
            '<td>'+ meridianTemplate +'</td>'
           : '') +
         '</tr>'+
         '<tr>'+
           '<td><a href="#" data-action="decrementHour"><span class="'+ this.icons.down +'"></span></a></td>'+
           '<td class="separator"></td>'+
           '<td><a href="#" data-action="decrementMinute"><span class="'+ this.icons.down +'"></span></a></td>'+
           (this.showSeconds ?
            '<td class="separator">&nbsp;</td>'+
            '<td><a href="#" data-action="decrementSecond"><span class="'+ this.icons.down +'"></span></a></td>'
           : '') +
           (this.showMeridian ?
            '<td class="separator">&nbsp;</td>'+
            '<td><a href="#" data-action="toggleMeridian"><span class="'+ this.icons.down +'"></span></a></td>'
           : '') +
         '</tr>'+
       '</table>';

      switch(this.template) {
      case 'modal':
        template = '<div class="bootstrap-timepicker-widget modal hide fade in" data-backdrop="'+ (this.modalBackdrop ? 'true' : 'false') +'">'+
          '<div class="modal-header">'+
            '<a href="#" class="close" data-dismiss="modal">&times;</a>'+
            '<h3>Pick a Time</h3>'+
          '</div>'+
          '<div class="modal-content">'+
            templateContent +
          '</div>'+
          '<div class="modal-footer">'+
            '<a href="#" class="btn btn-primary" data-dismiss="modal">OK</a>'+
          '</div>'+
        '</div>';
        break;
      case 'dropdown':
        template = '<div class="bootstrap-timepicker-widget dropdown-menu">'+ templateContent +'</div>';
        break;
      }

      return template;
    },

    getTime: function() {
      if (this.hour === '') {
        return '';
      }

      return this.hour + ':' + (this.minute.toString().length === 1 ? '0' + this.minute : this.minute) + (this.showSeconds ? ':' + (this.second.toString().length === 1 ? '0' + this.second : this.second) : '') + (this.showMeridian ? ' ' + this.meridian : '');
    },

    hideWidget: function() {
      if (this.isOpen === false) {
        return;
      }

      this.$element.trigger({
        'type': 'hide.timepicker',
        'time': {
          'value': this.getTime(),
          'hours': this.hour,
          'minutes': this.minute,
          'seconds': this.second,
          'meridian': this.meridian
        }
      });

      if (this.template === 'modal' && this.$widget.modal) {
        this.$widget.modal('hide');
      } else {
        this.$widget.removeClass('open');
      }

      $(document).off('mousedown.timepicker, touchend.timepicker', this.handleDocumentClick);

      this.isOpen = false;
      // show/hide approach taken by datepicker
      this.$widget.detach();
    },

    highlightUnit: function() {
      this.position = this.getCursorPosition();
      if (this.position >= 0 && this.position <= 2) {
        this.highlightHour();
      } else if (this.position >= 3 && this.position <= 5) {
        this.highlightMinute();
      } else if (this.position >= 6 && this.position <= 8) {
        if (this.showSeconds) {
          this.highlightSecond();
        } else {
          this.highlightMeridian();
        }
      } else if (this.position >= 9 && this.position <= 11) {
        this.highlightMeridian();
      }
    },

    highlightNextUnit: function() {
      switch (this.highlightedUnit) {
      case 'hour':
        this.highlightMinute();
        break;
      case 'minute':
        if (this.showSeconds) {
          this.highlightSecond();
        } else if (this.showMeridian){
          this.highlightMeridian();
        } else {
          this.highlightHour();
        }
        break;
      case 'second':
        if (this.showMeridian) {
          this.highlightMeridian();
        } else {
          this.highlightHour();
        }
        break;
      case 'meridian':
        this.highlightHour();
        break;
      }
    },

    highlightPrevUnit: function() {
      switch (this.highlightedUnit) {
      case 'hour':
        if(this.showMeridian){
          this.highlightMeridian();
        } else if (this.showSeconds) {
          this.highlightSecond();
        } else {
          this.highlightMinute();
        }
        break;
      case 'minute':
        this.highlightHour();
        break;
      case 'second':
        this.highlightMinute();
        break;
      case 'meridian':
        if (this.showSeconds) {
          this.highlightSecond();
        } else {
          this.highlightMinute();
        }
        break;
      }
    },

    highlightHour: function() {
      var $element = this.$element.get(0),
          self = this;

      this.highlightedUnit = 'hour';

      if ($element.setSelectionRange) {
        setTimeout(function() {
          if (self.hour < 10) {
            $element.setSelectionRange(0,1);
          } else {
            $element.setSelectionRange(0,2);
          }
        }, 0);
      }
    },

    highlightMinute: function() {
      var $element = this.$element.get(0),
          self = this;

      this.highlightedUnit = 'minute';

      if ($element.setSelectionRange) {
        setTimeout(function() {
          if (self.hour < 10) {
            $element.setSelectionRange(2,4);
          } else {
            $element.setSelectionRange(3,5);
          }
        }, 0);
      }
    },

    highlightSecond: function() {
      var $element = this.$element.get(0),
          self = this;

      this.highlightedUnit = 'second';

      if ($element.setSelectionRange) {
        setTimeout(function() {
          if (self.hour < 10) {
            $element.setSelectionRange(5,7);
          } else {
            $element.setSelectionRange(6,8);
          }
        }, 0);
      }
    },

    highlightMeridian: function() {
      var $element = this.$element.get(0),
          self = this;

      this.highlightedUnit = 'meridian';

      if ($element.setSelectionRange) {
        if (this.showSeconds) {
          setTimeout(function() {
            if (self.hour < 10) {
              $element.setSelectionRange(8,10);
            } else {
              $element.setSelectionRange(9,11);
            }
          }, 0);
        } else {
          setTimeout(function() {
            if (self.hour < 10) {
              $element.setSelectionRange(5,7);
            } else {
              $element.setSelectionRange(6,8);
            }
          }, 0);
        }
      }
    },

    incrementHour: function() {
      if (this.showMeridian) {
        if (this.hour === 11) {
          this.hour++;
          return this.toggleMeridian();
        } else if (this.hour === 12) {
          this.hour = 0;
        }
      }
      if (this.hour === this.maxHours - 1) {
        this.hour = 0;

        return;
      }
      this.hour++;
    },

    incrementMinute: function(step) {
      var newVal;

      if (step) {
        newVal = this.minute + step;
      } else {
        newVal = this.minute + this.minuteStep - (this.minute % this.minuteStep);
      }

      if (newVal > 59) {
        this.incrementHour();
        this.minute = newVal - 60;
      } else {
        this.minute = newVal;
      }
    },

    incrementSecond: function() {
      var newVal = this.second + this.secondStep - (this.second % this.secondStep);

      if (newVal > 59) {
        this.incrementMinute(true);
        this.second = newVal - 60;
      } else {
        this.second = newVal;
      }
    },

    mousewheel: function(e) {
      if (this.disableMousewheel) {
        return;
      }

      e.preventDefault();
      e.stopPropagation();

      var delta = e.originalEvent.wheelDelta || -e.originalEvent.detail,
          scrollTo = null;

      if (e.type === 'mousewheel') {
        scrollTo = (e.originalEvent.wheelDelta * -1);
      }
      else if (e.type === 'DOMMouseScroll') {
        scrollTo = 40 * e.originalEvent.detail;
      }

      if (scrollTo) {
        e.preventDefault();
        $(this).scrollTop(scrollTo + $(this).scrollTop());
      }

      switch (this.highlightedUnit) {
      case 'minute':
        if (delta > 0) {
          this.incrementMinute();
        } else {
          this.decrementMinute();
        }
        this.highlightMinute();
        break;
      case 'second':
        if (delta > 0) {
          this.incrementSecond();
        } else {
          this.decrementSecond();
        }
        this.highlightSecond();
        break;
      case 'meridian':
        this.toggleMeridian();
        this.highlightMeridian();
        break;
      default:
        if (delta > 0) {
          this.incrementHour();
        } else {
          this.decrementHour();
        }
        this.highlightHour();
        break;
      }

      return false;
    },

    /**
     * Given a segment value like 43, will round and snap the segment
     * to the nearest "step", like 45 if step is 15. Segment will
     * "overflow" to 0 if it's larger than 59 or would otherwise
     * round up to 60.
     */
    changeToNearestStep: function (segment, step) {
      if (segment % step === 0) {
        return segment;
      }
      if (Math.round((segment % step) / step)) {
        return (segment + (step - segment % step)) % 60;
      } else {
        return segment - segment % step;
      }
    },

    // This method was adapted from bootstrap-datepicker.
    place : function() {
      if (this.isInline) {
        return;
      }
      var widgetWidth = this.$widget.outerWidth(), widgetHeight = this.$widget.outerHeight(), visualPadding = 10, windowWidth =
        $(window).width(), windowHeight = $(window).height(), scrollTop = $(window).scrollTop();

      var zIndex = parseInt(this.$element.parents().filter(function() { return $(this).css('z-index') !== 'auto'; }).first().css('z-index'), 10) + 10;
      var offset = this.component ? this.component.parent().offset() : this.$element.offset();
      var height = this.component ? this.component.outerHeight(true) : this.$element.outerHeight(false);
      var width = this.component ? this.component.outerWidth(true) : this.$element.outerWidth(false);
      var left = offset.left, top = offset.top;

      this.$widget.removeClass('timepicker-orient-top timepicker-orient-bottom timepicker-orient-right timepicker-orient-left');

      if (this.orientation.x !== 'auto') {
        this.$widget.addClass('timepicker-orient-' + this.orientation.x);
        if (this.orientation.x === 'right') {
          left -= widgetWidth - width;
        }
      } else{
        // auto x orientation is best-placement: if it crosses a window edge, fudge it sideways
        // Default to left
        this.$widget.addClass('timepicker-orient-left');
        if (offset.left < 0) {
          left -= offset.left - visualPadding;
        } else if (offset.left + widgetWidth > windowWidth) {
          left = windowWidth - widgetWidth - visualPadding;
        }
      }
      // auto y orientation is best-situation: top or bottom, no fudging, decision based on which shows more of the widget
      var yorient = this.orientation.y, topOverflow, bottomOverflow;
      if (yorient === 'auto') {
        topOverflow = -scrollTop + offset.top - widgetHeight;
        bottomOverflow = scrollTop + windowHeight - (offset.top + height + widgetHeight);
        if (Math.max(topOverflow, bottomOverflow) === bottomOverflow) {
          yorient = 'top';
        } else {
          yorient = 'bottom';
        }
      }
      this.$widget.addClass('timepicker-orient-' + yorient);
      if (yorient === 'top'){
        top += height;
      } else{
        top -= widgetHeight + parseInt(this.$widget.css('padding-top'), 10);
      }

      this.$widget.css({
        top : top,
        left : left,
        zIndex : zIndex
      });
    },

    remove: function() {
      $('document').off('.timepicker');
      if (this.$widget) {
        this.$widget.remove();
      }
      delete this.$element.data().timepicker;
    },

    setDefaultTime: function(defaultTime) {
      if (!this.$element.val()) {
        if (defaultTime === 'current') {
          var dTime = new Date(),
            hours = dTime.getHours(),
            minutes = dTime.getMinutes(),
            seconds = dTime.getSeconds(),
            meridian = 'AM';

          if (seconds !== 0) {
            seconds = Math.ceil(dTime.getSeconds() / this.secondStep) * this.secondStep;
            if (seconds === 60) {
              minutes += 1;
              seconds = 0;
            }
          }

          if (minutes !== 0) {
            minutes = Math.ceil(dTime.getMinutes() / this.minuteStep) * this.minuteStep;
            if (minutes === 60) {
              hours += 1;
              minutes = 0;
            }
          }

          if (this.showMeridian) {
            if (hours === 0) {
              hours = 12;
            } else if (hours >= 12) {
              if (hours > 12) {
                hours = hours - 12;
              }
              meridian = 'PM';
            } else {
              meridian = 'AM';
            }
          }

          this.hour = hours;
          this.minute = minutes;
          this.second = seconds;
          this.meridian = meridian;

          this.update();

        } else if (defaultTime === false) {
          this.hour = 0;
          this.minute = 0;
          this.second = 0;
          this.meridian = 'AM';
        } else {
          this.setTime(defaultTime);
        }
      } else {
        this.updateFromElementVal();
      }
    },

    setTime: function(time, ignoreWidget) {
      if (!time) {
        this.clear();
        return;
      }

      var timeMode,
          timeArray,
          hour,
          minute,
          second,
          meridian;

      if (typeof time === 'object' && time.getMonth){
        // this is a date object
        hour    = time.getHours();
        minute  = time.getMinutes();
        second  = time.getSeconds();

        if (this.showMeridian){
          meridian = 'AM';
          if (hour > 12){
            meridian = 'PM';
            hour = hour % 12;
          }

          if (hour === 12){
            meridian = 'PM';
          }
        }
      } else {
        timeMode = ((/a/i).test(time) ? 1 : 0) + ((/p/i).test(time) ? 2 : 0); // 0 = none, 1 = AM, 2 = PM, 3 = BOTH.
        if (timeMode > 2) { // If both are present, fail.
          this.clear();
          return;
        }

        timeArray = time.replace(/[^0-9\:]/g, '').split(':');

        hour = timeArray[0] ? timeArray[0].toString() : timeArray.toString();

        if(this.explicitMode && hour.length > 2 && (hour.length % 2) !== 0 ) {
          this.clear();
          return;
        }

        minute = timeArray[1] ? timeArray[1].toString() : '';
        second = timeArray[2] ? timeArray[2].toString() : '';

        // adaptive time parsing
        if (hour.length > 4) {
          second = hour.slice(-2);
          hour = hour.slice(0, -2);
        }

        if (hour.length > 2) {
          minute = hour.slice(-2);
          hour = hour.slice(0, -2);
        }

        if (minute.length > 2) {
          second = minute.slice(-2);
          minute = minute.slice(0, -2);
        }

        hour = parseInt(hour, 10);
        minute = parseInt(minute, 10);
        second = parseInt(second, 10);

        if (isNaN(hour)) {
          hour = 0;
        }
        if (isNaN(minute)) {
          minute = 0;
        }
        if (isNaN(second)) {
          second = 0;
        }

        // Adjust the time based upon unit boundary.
        // NOTE: Negatives will never occur due to time.replace() above.
        if (second > 59) {
          second = 59;
        }

        if (minute > 59) {
          minute = 59;
        }

        if (hour >= this.maxHours) {
          // No day/date handling.
          hour = this.maxHours - 1;
        }

        if (this.showMeridian) {
          if (hour > 12) {
            // Force PM.
            timeMode = 2;
            hour -= 12;
          }
          if (!timeMode) {
            timeMode = 1;
          }
          if (hour === 0) {
            hour = 12; // AM or PM, reset to 12.  0 AM = 12 AM.  0 PM = 12 PM, etc.
          }
          meridian = timeMode === 1 ? 'AM' : 'PM';
        } else if (hour < 12 && timeMode === 2) {
          hour += 12;
        } else {
          if (hour >= this.maxHours) {
            hour = this.maxHours - 1;
          } else if ((hour < 0) || (hour === 12 && timeMode === 1)){
            hour = 0;
          }
        }
      }

      this.hour = hour;
      if (this.snapToStep) {
        this.minute = this.changeToNearestStep(minute, this.minuteStep);
        this.second = this.changeToNearestStep(second, this.secondStep);
      } else {
        this.minute = minute;
        this.second = second;
      }
      this.meridian = meridian;

      this.update(ignoreWidget);
    },

    showWidget: function() {
      if (this.isOpen) {
        return;
      }

      if (this.$element.is(':disabled')) {
        return;
      }

      // show/hide approach taken by datepicker
      this.$widget.appendTo(this.appendWidgetTo);
      $(document).on('mousedown.timepicker, touchend.timepicker', {scope: this}, this.handleDocumentClick);

      this.$element.trigger({
        'type': 'show.timepicker',
        'time': {
          'value': this.getTime(),
          'hours': this.hour,
          'minutes': this.minute,
          'seconds': this.second,
          'meridian': this.meridian
        }
      });

      this.place();
      if (this.disableFocus) {
        this.$element.blur();
      }

      // widget shouldn't be empty on open
      if (this.hour === '') {
        if (this.defaultTime) {
          this.setDefaultTime(this.defaultTime);
        } else {
          this.setTime('0:0:0');
        }
      }

      if (this.template === 'modal' && this.$widget.modal) {
        this.$widget.modal('show').on('hidden', $.proxy(this.hideWidget, this));
      } else {
        if (this.isOpen === false) {
          this.$widget.addClass('open');
        }
      }

      this.isOpen = true;
    },

    toggleMeridian: function() {
      this.meridian = this.meridian === 'AM' ? 'PM' : 'AM';
    },

    update: function(ignoreWidget) {
      this.updateElement();
      if (!ignoreWidget) {
        this.updateWidget();
      }

      this.$element.trigger({
        'type': 'changeTime.timepicker',
        'time': {
          'value': this.getTime(),
          'hours': this.hour,
          'minutes': this.minute,
          'seconds': this.second,
          'meridian': this.meridian
        }
      });
    },

    updateElement: function() {
      this.$element.val(this.getTime()).change();
    },

    updateFromElementVal: function() {
      this.setTime(this.$element.val());
    },

    updateWidget: function() {
      if (this.$widget === false) {
        return;
      }

      var hour = this.hour,
          minute = this.minute.toString().length === 1 ? '0' + this.minute : this.minute,
          second = this.second.toString().length === 1 ? '0' + this.second : this.second;

      if (this.showInputs) {
        this.$widget.find('input.bootstrap-timepicker-hour').val(hour);
        this.$widget.find('input.bootstrap-timepicker-minute').val(minute);

        if (this.showSeconds) {
          this.$widget.find('input.bootstrap-timepicker-second').val(second);
        }
        if (this.showMeridian) {
          this.$widget.find('input.bootstrap-timepicker-meridian').val(this.meridian);
        }
      } else {
        this.$widget.find('span.bootstrap-timepicker-hour').text(hour);
        this.$widget.find('span.bootstrap-timepicker-minute').text(minute);

        if (this.showSeconds) {
          this.$widget.find('span.bootstrap-timepicker-second').text(second);
        }
        if (this.showMeridian) {
          this.$widget.find('span.bootstrap-timepicker-meridian').text(this.meridian);
        }
      }
    },

    updateFromWidgetInputs: function() {
      if (this.$widget === false) {
        return;
      }

      var t = this.$widget.find('input.bootstrap-timepicker-hour').val() + ':' +
              this.$widget.find('input.bootstrap-timepicker-minute').val() +
              (this.showSeconds ? ':' + this.$widget.find('input.bootstrap-timepicker-second').val() : '') +
              (this.showMeridian ? this.$widget.find('input.bootstrap-timepicker-meridian').val() : '')
      ;

      this.setTime(t, true);
    },

    widgetClick: function(e) {
      e.stopPropagation();
      e.preventDefault();

      var $input = $(e.target),
          action = $input.closest('a').data('action');

      if (action) {
        this[action]();
      }
      this.update();

      if ($input.is('input')) {
        $input.get(0).setSelectionRange(0,2);
      }
    },

    widgetKeydown: function(e) {
      var $input = $(e.target),
          name = $input.attr('class').replace('bootstrap-timepicker-', '');

      switch (e.which) {
      case 9: //tab
        if (e.shiftKey) {
          if (name === 'hour') {
            return this.hideWidget();
          }
        } else if ((this.showMeridian && name === 'meridian') || (this.showSeconds && name === 'second') || (!this.showMeridian && !this.showSeconds && name === 'minute')) {
          return this.hideWidget();
        }
        break;
      case 27: // escape
        this.hideWidget();
        break;
      case 38: // up arrow
        e.preventDefault();
        switch (name) {
        case 'hour':
          this.incrementHour();
          break;
        case 'minute':
          this.incrementMinute();
          break;
        case 'second':
          this.incrementSecond();
          break;
        case 'meridian':
          this.toggleMeridian();
          break;
        }
        this.setTime(this.getTime());
        $input.get(0).setSelectionRange(0,2);
        break;
      case 40: // down arrow
        e.preventDefault();
        switch (name) {
        case 'hour':
          this.decrementHour();
          break;
        case 'minute':
          this.decrementMinute();
          break;
        case 'second':
          this.decrementSecond();
          break;
        case 'meridian':
          this.toggleMeridian();
          break;
        }
        this.setTime(this.getTime());
        $input.get(0).setSelectionRange(0,2);
        break;
      }
    },

    widgetKeyup: function(e) {
      if ((e.which === 65) || (e.which === 77) || (e.which === 80) || (e.which === 46) || (e.which === 8) || (e.which >= 48 && e.which <= 57) || (e.which >= 96 && e.which <= 105)) {
        this.updateFromWidgetInputs();
      }
    }
  };

  //TIMEPICKER PLUGIN DEFINITION
  $.fn.timepicker = function(option) {
    var args = Array.apply(null, arguments);
    args.shift();
    return this.each(function() {
      var $this = $(this),
        data = $this.data('timepicker'),
        options = typeof option === 'object' && option;

      if (!data) {
        $this.data('timepicker', (data = new Timepicker(this, $.extend({}, $.fn.timepicker.defaults, options, $(this).data()))));
      }

      if (typeof option === 'string') {
        data[option].apply(data, args);
      }
    });
  };

  $.fn.timepicker.defaults = {
    defaultTime: 'current',
    disableFocus: false,
    disableMousewheel: false,
    isOpen: false,
    minuteStep: 15,
    modalBackdrop: false,
    orientation: { x: 'auto', y: 'auto'},
    secondStep: 15,
    snapToStep: false,
    showSeconds: false,
    showInputs: true,
    showMeridian: true,
    template: 'dropdown',
    appendWidgetTo: 'body',
    showWidgetOnAddonClick: true,
    icons: {
      up: 'fa fa-angle-up',
      down: 'fa fa-angle-down'
    },
    maxHours: 24,
    explicitMode: false
  };

  $.fn.timepicker.Constructor = Timepicker;

  $(document).on(
    'focus.timepicker.data-api click.timepicker.data-api',
    '[data-provide="timepicker"]',
    function(e){
      var $this = $(this);
      if ($this.data('timepicker')) {
        return;
      }
      e.preventDefault();
      // component click requires us to explicitly show it
      $this.timepicker();
    }
  );

})(jQuery, window, document);
