datepicker.js

angular.module('ui.bootstrap.datepicker', ['ui.bootstrap.dateparser', 'ui.bootstrap.position'])

.value('$datepickerSuppressError', false)

.constant('uibDatepickerConfig', {
  formatDay: 'dd',
  formatMonth: 'MMMM',
  formatYear: 'yyyy',
  formatDayHeader: 'EEE',
  formatDayTitle: 'MMMM yyyy',
  formatMonthTitle: 'yyyy',
  datepickerMode: 'day',
  minMode: 'day',
  maxMode: 'year',
  showWeeks: true,
  startingDay: 0,
  yearRange: 20,
  minDate: null,
  maxDate: null,
  shortcutPropagation: false
})

.controller('UibDatepickerController', ['$scope', '$attrs', '$parse', '$interpolate', '$log', 'dateFilter', 'uibDatepickerConfig', '$datepickerSuppressError', function($scope, $attrs, $parse, $interpolate, $log, dateFilter, datepickerConfig, $datepickerSuppressError) {
  var self = this,
      ngModelCtrl = { $setViewValue: angular.noop }; // nullModelCtrl;

  // Modes chain
  this.modes = ['day', 'month', 'year'];

  // Interpolated configuration attributes
  angular.forEach(['formatDay', 'formatMonth', 'formatYear', 'formatDayHeader', 'formatDayTitle', 'formatMonthTitle'], function(key) {
    self[key] = angular.isDefined($attrs[key]) ? $interpolate($attrs[key])($scope.$parent) : datepickerConfig[key];
  });

  // Evaled configuration attributes
  angular.forEach(['showWeeks', 'startingDay', 'yearRange', 'shortcutPropagation'], function(key) {
    self[key] = angular.isDefined($attrs[key]) ? $scope.$parent.$eval($attrs[key]) : datepickerConfig[key];
  });

  // Watchable date attributes
  angular.forEach(['minDate', 'maxDate'], function(key) {
    if ($attrs[key]) {
      $scope.$parent.$watch($attrs[key], function(value) {
        self[key] = value ? new Date(value) : null;
        self.refreshView();
      });
    } else {
      self[key] = datepickerConfig[key] ? new Date(datepickerConfig[key]) : null;
    }
  });

  angular.forEach(['minMode', 'maxMode'], function(key) {
    if ($attrs[key]) {
      $scope.$parent.$watch($attrs[key], function(value) {
        self[key] = $scope[key] = angular.isDefined(value) ? value : $attrs[key];
        if (key === 'minMode' && self.modes.indexOf($scope.datepickerMode) < self.modes.indexOf(self[key]) ||
          key === 'maxMode' && self.modes.indexOf($scope.datepickerMode) > self.modes.indexOf(self[key])) {
          $scope.datepickerMode = self[key];
        }
      });
    } else {
      self[key] = $scope[key] = datepickerConfig[key] || null;
    }
  });

  $scope.datepickerMode = $scope.datepickerMode || datepickerConfig.datepickerMode;
  $scope.uniqueId = 'datepicker-' + $scope.$id + '-' + Math.floor(Math.random() * 10000);

  if (angular.isDefined($attrs.initDate)) {
    this.activeDate = $scope.$parent.$eval($attrs.initDate) || new Date();
    $scope.$parent.$watch($attrs.initDate, function(initDate) {
      if (initDate && (ngModelCtrl.$isEmpty(ngModelCtrl.$modelValue) || ngModelCtrl.$invalid)) {
        self.activeDate = initDate;
        self.refreshView();
      }
    });
  } else {
    this.activeDate = new Date();
  }

  $scope.disabled = angular.isDefined($attrs.disabled) || false;
  if (angular.isDefined($attrs.ngDisabled)) {
    $scope.$parent.$watch($attrs.ngDisabled, function(disabled) {
      $scope.disabled = disabled;
      self.refreshView();
    });
  }

  $scope.isActive = function(dateObject) {
    if (self.compare(dateObject.date, self.activeDate) === 0) {
      $scope.activeDateId = dateObject.uid;
      return true;
    }
    return false;
  };

  this.init = function(ngModelCtrl_) {
    ngModelCtrl = ngModelCtrl_;

    ngModelCtrl.$render = function() {
      self.render();
    };
  };

  this.render = function() {
    if (ngModelCtrl.$viewValue) {
      var date = new Date(ngModelCtrl.$viewValue),
          isValid = !isNaN(date);

      if (isValid) {
        this.activeDate = date;
      } else if (!$datepickerSuppressError) {
        $log.error('Datepicker directive: "ng-model" value must be a Date object, a number of milliseconds since 01.01.1970 or a string representing an RFC2822 or ISO 8601 date.');
      }
    }
    this.refreshView();
  };

  this.refreshView = function() {
    if (this.element) {
      this._refreshView();

      var date = ngModelCtrl.$viewValue ? new Date(ngModelCtrl.$viewValue) : null;
      ngModelCtrl.$setValidity('dateDisabled', !date ||
        this.element && !this.isDisabled(date));
    }
  };

  this.createDateObject = function(date, format) {
    var model = ngModelCtrl.$viewValue ? new Date(ngModelCtrl.$viewValue) : null;
    return {
      date: date,
      label: dateFilter(date, format),
      selected: model && this.compare(date, model) === 0,
      disabled: this.isDisabled(date),
      current: this.compare(date, new Date()) === 0,
      customClass: this.customClass(date)
    };
  };

  this.isDisabled = function(date) {
    return $scope.disabled ||
      this.minDate && this.compare(date, this.minDate) < 0 ||
      this.maxDate && this.compare(date, this.maxDate) > 0 ||
      $attrs.dateDisabled && $scope.dateDisabled({date: date, mode: $scope.datepickerMode});
  };

  this.customClass = function(date) {
    return $scope.customClass({date: date, mode: $scope.datepickerMode});
  };

  // Split array into smaller arrays
  this.split = function(arr, size) {
    var arrays = [];
    while (arr.length > 0) {
      arrays.push(arr.splice(0, size));
    }
    return arrays;
  };

  $scope.select = function(date) {
    if ($scope.datepickerMode === self.minMode) {
      var dt = ngModelCtrl.$viewValue ? new Date(ngModelCtrl.$viewValue) : new Date(0, 0, 0, 0, 0, 0, 0);
      dt.setFullYear(date.getFullYear(), date.getMonth(), date.getDate());
      ngModelCtrl.$setViewValue(dt);
      ngModelCtrl.$render();
    } else {
      self.activeDate = date;
      $scope.datepickerMode = self.modes[self.modes.indexOf($scope.datepickerMode) - 1];
    }
  };

  $scope.move = function(direction) {
    var year = self.activeDate.getFullYear() + direction * (self.step.years || 0),
        month = self.activeDate.getMonth() + direction * (self.step.months || 0);
    self.activeDate.setFullYear(year, month, 1);
    self.refreshView();
  };

  $scope.toggleMode = function(direction) {
    direction = direction || 1;

    if ($scope.datepickerMode === self.maxMode && direction === 1 ||
      $scope.datepickerMode === self.minMode && direction === -1) {
      return;
    }

    $scope.datepickerMode = self.modes[self.modes.indexOf($scope.datepickerMode) + direction];
  };

  // Key event mapper
  $scope.keys = { 13: 'enter', 32: 'space', 33: 'pageup', 34: 'pagedown', 35: 'end', 36: 'home', 37: 'left', 38: 'up', 39: 'right', 40: 'down' };

  var focusElement = function() {
    self.element[0].focus();
  };

  // Listen for focus requests from popup directive
  $scope.$on('uib:datepicker.focus', focusElement);

  $scope.keydown = function(evt) {
    var key = $scope.keys[evt.which];

    if (!key || evt.shiftKey || evt.altKey || $scope.disabled) {
      return;
    }

    evt.preventDefault();
    if (!self.shortcutPropagation) {
      evt.stopPropagation();
    }

    if (key === 'enter' || key === 'space') {
      if (self.isDisabled(self.activeDate)) {
        return; // do nothing
      }
      $scope.select(self.activeDate);
    } else if (evt.ctrlKey && (key === 'up' || key === 'down')) {
      $scope.toggleMode(key === 'up' ? 1 : -1);
    } else {
      self.handleKeyDown(key, evt);
      self.refreshView();
    }
  };
}])

.controller('UibDaypickerController', ['$scope', '$element', 'dateFilter', function(scope, $element, dateFilter) {
  var DAYS_IN_MONTH = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];

  this.step = { months: 1 };
  this.element = $element;
  function getDaysInMonth(year, month) {
    return month === 1 && year % 4 === 0 &&
      (year % 100 !== 0 || year % 400 === 0) ? 29 : DAYS_IN_MONTH[month];
  }

  this.init = function(ctrl) {
    angular.extend(ctrl, this);
    scope.showWeeks = ctrl.showWeeks;
    ctrl.refreshView();
  };

  this.getDates = function(startDate, n) {
    var dates = new Array(n), current = new Date(startDate), i = 0, date;
    while (i < n) {
      date = new Date(current);
      dates[i++] = date;
      current.setDate(current.getDate() + 1);
    }
    return dates;
  };

  this._refreshView = function() {
    var year = this.activeDate.getFullYear(),
      month = this.activeDate.getMonth(),
      firstDayOfMonth = new Date(this.activeDate);

    firstDayOfMonth.setFullYear(year, month, 1);

    var difference = this.startingDay - firstDayOfMonth.getDay(),
      numDisplayedFromPreviousMonth = difference > 0 ?
        7 - difference : - difference,
      firstDate = new Date(firstDayOfMonth);

    if (numDisplayedFromPreviousMonth > 0) {
      firstDate.setDate(-numDisplayedFromPreviousMonth + 1);
    }

    // 42 is the number of days on a six-week calendar
    var days = this.getDates(firstDate, 42);
    for (var i = 0; i < 42; i ++) {
      days[i] = angular.extend(this.createDateObject(days[i], this.formatDay), {
        secondary: days[i].getMonth() !== month,
        uid: scope.uniqueId + '-' + i
      });
    }

    scope.labels = new Array(7);
    for (var j = 0; j < 7; j++) {
      scope.labels[j] = {
        abbr: dateFilter(days[j].date, this.formatDayHeader),
        full: dateFilter(days[j].date, 'EEEE')
      };
    }

    scope.title = dateFilter(this.activeDate, this.formatDayTitle);
    scope.rows = this.split(days, 7);

    if (scope.showWeeks) {
      scope.weekNumbers = [];
      var thursdayIndex = (4 + 7 - this.startingDay) % 7,
          numWeeks = scope.rows.length;
      for (var curWeek = 0; curWeek < numWeeks; curWeek++) {
        scope.weekNumbers.push(
          getISO8601WeekNumber(scope.rows[curWeek][thursdayIndex].date));
      }
    }
  };

  this.compare = function(date1, date2) {
    var _date1 = new Date(date1.getFullYear(), date1.getMonth(), date1.getDate());
    var _date2 = new Date(date2.getFullYear(), date2.getMonth(), date2.getDate());
    _date1.setFullYear(date1.getFullYear());
    _date2.setFullYear(date2.getFullYear());
    return _date1 - _date2;
  };

  function getISO8601WeekNumber(date) {
    var checkDate = new Date(date);
    checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7)); // Thursday
    var time = checkDate.getTime();
    checkDate.setMonth(0); // Compare with Jan 1
    checkDate.setDate(1);
    return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;
  }

  this.handleKeyDown = function(key, evt) {
    var date = this.activeDate.getDate();

    if (key === 'left') {
      date = date - 1;
    } else if (key === 'up') {
      date = date - 7;
    } else if (key === 'right') {
      date = date + 1;
    } else if (key === 'down') {
      date = date + 7;
    } else if (key === 'pageup' || key === 'pagedown') {
      var month = this.activeDate.getMonth() + (key === 'pageup' ? - 1 : 1);
      this.activeDate.setMonth(month, 1);
      date = Math.min(getDaysInMonth(this.activeDate.getFullYear(), this.activeDate.getMonth()), date);
    } else if (key === 'home') {
      date = 1;
    } else if (key === 'end') {
      date = getDaysInMonth(this.activeDate.getFullYear(), this.activeDate.getMonth());
    }
    this.activeDate.setDate(date);
  };
}])

.controller('UibMonthpickerController', ['$scope', '$element', 'dateFilter', function(scope, $element, dateFilter) {
  this.step = { years: 1 };
  this.element = $element;

  this.init = function(ctrl) {
    angular.extend(ctrl, this);
    ctrl.refreshView();
  };

  this._refreshView = function() {
    var months = new Array(12),
        year = this.activeDate.getFullYear(),
        date;

    for (var i = 0; i < 12; i++) {
      date = new Date(this.activeDate);
      date.setFullYear(year, i, 1);
      months[i] = angular.extend(this.createDateObject(date, this.formatMonth), {
        uid: scope.uniqueId + '-' + i
      });
    }

    scope.title = dateFilter(this.activeDate, this.formatMonthTitle);
    scope.rows = this.split(months, 3);
  };

  this.compare = function(date1, date2) {
    var _date1 = new Date(date1.getFullYear(), date1.getMonth());
    var _date2 = new Date(date2.getFullYear(), date2.getMonth());
    _date1.setFullYear(date1.getFullYear());
    _date2.setFullYear(date2.getFullYear());
    return _date1 - _date2;
  };

  this.handleKeyDown = function(key, evt) {
    var date = this.activeDate.getMonth();

    if (key === 'left') {
      date = date - 1;
    } else if (key === 'up') {
      date = date - 3;
    } else if (key === 'right') {
      date = date + 1;
    } else if (key === 'down') {
      date = date + 3;
    } else if (key === 'pageup' || key === 'pagedown') {
      var year = this.activeDate.getFullYear() + (key === 'pageup' ? - 1 : 1);
      this.activeDate.setFullYear(year);
    } else if (key === 'home') {
      date = 0;
    } else if (key === 'end') {
      date = 11;
    }
    this.activeDate.setMonth(date);
  };
}])

.controller('UibYearpickerController', ['$scope', '$element', 'dateFilter', function(scope, $element, dateFilter) {
  var range;
  this.element = $element;

  function getStartingYear(year) {
    return parseInt((year - 1) / range, 10) * range + 1;
  }

  this.yearpickerInit = function() {
    range = this.yearRange;
    this.step = { years: range };
  };

  this._refreshView = function() {
    var years = new Array(range), date;

    for (var i = 0, start = getStartingYear(this.activeDate.getFullYear()); i < range; i++) {
      date = new Date(this.activeDate);
      date.setFullYear(start + i, 0, 1);
      years[i] = angular.extend(this.createDateObject(date, this.formatYear), {
        uid: scope.uniqueId + '-' + i
      });
    }

    scope.title = [years[0].label, years[range - 1].label].join(' - ');
    scope.rows = this.split(years, 5);
  };

  this.compare = function(date1, date2) {
    return date1.getFullYear() - date2.getFullYear();
  };

  this.handleKeyDown = function(key, evt) {
    var date = this.activeDate.getFullYear();

    if (key === 'left') {
      date = date - 1;
    } else if (key === 'up') {
      date = date - 5;
    } else if (key === 'right') {
      date = date + 1;
    } else if (key === 'down') {
      date = date + 5;
    } else if (key === 'pageup' || key === 'pagedown') {
      date += (key === 'pageup' ? - 1 : 1) * this.step.years;
    } else if (key === 'home') {
      date = getStartingYear(this.activeDate.getFullYear());
    } else if (key === 'end') {
      date = getStartingYear(this.activeDate.getFullYear()) + range - 1;
    }
    this.activeDate.setFullYear(date);
  };
}])

.directive('uibDatepicker', function() {
  return {
    replace: true,
    templateUrl: function(element, attrs) {
      return attrs.templateUrl || 'uib/template/datepicker/datepicker.html';
    },
    scope: {
      datepickerMode: '=?',
      dateDisabled: '&',
      customClass: '&',
      shortcutPropagation: '&?'
    },
    require: ['uibDatepicker', '^ngModel'],
    controller: 'UibDatepickerController',
    controllerAs: 'datepicker',
    link: function(scope, element, attrs, ctrls) {
      var datepickerCtrl = ctrls[0], ngModelCtrl = ctrls[1];

      datepickerCtrl.init(ngModelCtrl);
    }
  };
})

.directive('uibDaypicker', function() {
  return {
    replace: true,
    templateUrl: function(element, attrs) {
      return attrs.templateUrl || 'uib/template/datepicker/day.html';
    },
    require: ['^uibDatepicker', 'uibDaypicker'],
    controller: 'UibDaypickerController',
    link: function(scope, element, attrs, ctrls) {
      var datepickerCtrl = ctrls[0],
        daypickerCtrl = ctrls[1];

      daypickerCtrl.init(datepickerCtrl);
    }
  };
})

.directive('uibMonthpicker', function() {
  return {
    replace: true,
    templateUrl: function(element, attrs) {
      return attrs.templateUrl || 'uib/template/datepicker/month.html';
    },
    require: ['^uibDatepicker', 'uibMonthpicker'],
    controller: 'UibMonthpickerController',
    link: function(scope, element, attrs, ctrls) {
      var datepickerCtrl = ctrls[0],
        monthpickerCtrl = ctrls[1];

      monthpickerCtrl.init(datepickerCtrl);
    }
  };
})

.directive('uibYearpicker', function() {
  return {
    replace: true,
    templateUrl: function(element, attrs) {
      return attrs.templateUrl || 'uib/template/datepicker/year.html';
    },
    require: ['^uibDatepicker', 'uibYearpicker'],
    controller: 'UibYearpickerController',
    link: function(scope, element, attrs, ctrls) {
      var ctrl = ctrls[0];
      angular.extend(ctrl, ctrls[1]);
      ctrl.yearpickerInit();

      ctrl.refreshView();
    }
  };
})

.constant('uibDatepickerPopupConfig', {
  datepickerPopup: 'yyyy-MM-dd',
  datepickerPopupTemplateUrl: 'uib/template/datepicker/popup.html',
  datepickerTemplateUrl: 'uib/template/datepicker/datepicker.html',
  html5Types: {
    date: 'yyyy-MM-dd',
    'datetime-local': 'yyyy-MM-ddTHH:mm:ss.sss',
    'month': 'yyyy-MM'
  },
  currentText: 'Today',
  clearText: 'Clear',
  closeText: 'Done',
  closeOnDateSelection: true,
  appendToBody: false,
  showButtonBar: true,
  onOpenFocus: true,
  altInputFormats: []
})

.controller('UibDatepickerPopupController', ['$scope', '$element', '$attrs', '$compile', '$parse', '$document', '$rootScope', '$uibPosition', 'dateFilter', 'uibDateParser', 'uibDatepickerPopupConfig', '$timeout',
function(scope, element, attrs, $compile, $parse, $document, $rootScope, $position, dateFilter, dateParser, datepickerPopupConfig, $timeout) {
  var self = this;
  var cache = {},
    isHtml5DateInput = false;
  var dateFormat, closeOnDateSelection, appendToBody, onOpenFocus,
    datepickerPopupTemplateUrl, datepickerTemplateUrl, popupEl, datepickerEl,
    ngModel, $popup, altInputFormats;

  scope.watchData = {};

  this.init = function(_ngModel_) {
    ngModel = _ngModel_;
    closeOnDateSelection = angular.isDefined(attrs.closeOnDateSelection) ? scope.$parent.$eval(attrs.closeOnDateSelection) : datepickerPopupConfig.closeOnDateSelection;
    appendToBody = angular.isDefined(attrs.datepickerAppendToBody) ? scope.$parent.$eval(attrs.datepickerAppendToBody) : datepickerPopupConfig.appendToBody;
    onOpenFocus = angular.isDefined(attrs.onOpenFocus) ? scope.$parent.$eval(attrs.onOpenFocus) : datepickerPopupConfig.onOpenFocus;
    datepickerPopupTemplateUrl = angular.isDefined(attrs.datepickerPopupTemplateUrl) ? attrs.datepickerPopupTemplateUrl : datepickerPopupConfig.datepickerPopupTemplateUrl;
    datepickerTemplateUrl = angular.isDefined(attrs.datepickerTemplateUrl) ? attrs.datepickerTemplateUrl : datepickerPopupConfig.datepickerTemplateUrl;
    altInputFormats = angular.isDefined(attrs.altInputFormats) ? scope.$parent.$eval(attrs.altInputFormats) : datepickerPopupConfig.altInputFormats;

    scope.showButtonBar = angular.isDefined(attrs.showButtonBar) ? scope.$parent.$eval(attrs.showButtonBar) : datepickerPopupConfig.showButtonBar;

    if (datepickerPopupConfig.html5Types[attrs.type]) {
      dateFormat = datepickerPopupConfig.html5Types[attrs.type];
      isHtml5DateInput = true;
    } else {
      dateFormat = attrs.uibDatepickerPopup || datepickerPopupConfig.datepickerPopup;
      attrs.$observe('uibDatepickerPopup', function(value, oldValue) {
          var newDateFormat = value || datepickerPopupConfig.datepickerPopup;
          // Invalidate the $modelValue to ensure that formatters re-run
          // FIXME: Refactor when PR is merged: https://github.com/angular/angular.js/pull/10764
          if (newDateFormat !== dateFormat) {
            dateFormat = newDateFormat;
            ngModel.$modelValue = null;

            if (!dateFormat) {
              throw new Error('uibDatepickerPopup must have a date format specified.');
            }
          }
      });
    }

    if (!dateFormat) {
      throw new Error('uibDatepickerPopup must have a date format specified.');
    }

    if (isHtml5DateInput && attrs.uibDatepickerPopup) {
      throw new Error('HTML5 date input types do not support custom formats.');
    }

    // popup element used to display calendar
    popupEl = angular.element('<div uib-datepicker-popup-wrap><div uib-datepicker></div></div>');
    popupEl.attr({
      'ng-model': 'date',
      'ng-change': 'dateSelection(date)',
      'template-url': datepickerPopupTemplateUrl
    });

    // datepicker element
    datepickerEl = angular.element(popupEl.children()[0]);
    datepickerEl.attr('template-url', datepickerTemplateUrl);

    if (isHtml5DateInput) {
      if (attrs.type === 'month') {
        datepickerEl.attr('datepicker-mode', '"month"');
        datepickerEl.attr('min-mode', 'month');
      }
    }

    if (attrs.datepickerOptions) {
      var options = scope.$parent.$eval(attrs.datepickerOptions);
      if (options && options.initDate) {
        scope.initDate = options.initDate;
        datepickerEl.attr('init-date', 'initDate');
        delete options.initDate;
      }
      angular.forEach(options, function(value, option) {
        datepickerEl.attr(cameltoDash(option), value);
      });
    }

    angular.forEach(['minMode', 'maxMode', 'minDate', 'maxDate', 'datepickerMode', 'initDate', 'shortcutPropagation'], function(key) {
      if (attrs[key]) {
        var getAttribute = $parse(attrs[key]);
        scope.$parent.$watch(getAttribute, function(value) {
          scope.watchData[key] = value;
          if (key === 'minDate' || key === 'maxDate') {
            cache[key] = new Date(value);
          }
        });
        datepickerEl.attr(cameltoDash(key), 'watchData.' + key);

        // Propagate changes from datepicker to outside
        if (key === 'datepickerMode') {
          var setAttribute = getAttribute.assign;
          scope.$watch('watchData.' + key, function(value, oldvalue) {
            if (angular.isFunction(setAttribute) && value !== oldvalue) {
              setAttribute(scope.$parent, value);
            }
          });
        }
      }
    });

    if (attrs.dateDisabled) {
      datepickerEl.attr('date-disabled', 'dateDisabled({ date: date, mode: mode })');
    }

    angular.forEach(['formatDay', 'formatMonth', 'formatYear', 'formatDayHeader', 'formatDayTitle', 'formatMonthTitle', 'showWeeks', 'startingDay', 'yearRange'], function(key) {
      if (angular.isDefined(attrs[key])) {
        datepickerEl.attr(cameltoDash(key), attrs[key]);
      }
    });

    if (attrs.customClass) {
      datepickerEl.attr('custom-class', 'customClass({ date: date, mode: mode })');
    }

    if (!isHtml5DateInput) {
      // Internal API to maintain the correct ng-invalid-[key] class
      ngModel.$$parserName = 'date';
      ngModel.$validators.date = validator;
      ngModel.$parsers.unshift(parseDate);
      ngModel.$formatters.push(function(value) {
        scope.date = value;
        return ngModel.$isEmpty(value) ? value : dateFilter(value, dateFormat);
      });
    } else {
      ngModel.$formatters.push(function(value) {
        scope.date = value;
        return value;
      });
    }

    // Detect changes in the view from the text box
    ngModel.$viewChangeListeners.push(function() {
      scope.date = dateParser.parse(ngModel.$viewValue, dateFormat, scope.date);
    });

    element.bind('keydown', inputKeydownBind);

    $popup = $compile(popupEl)(scope);
    // Prevent jQuery cache memory leak (template is now redundant after linking)
    popupEl.remove();

    if (appendToBody) {
      $document.find('body').append($popup);
    } else {
      element.after($popup);
    }

    scope.$on('$destroy', function() {
      if (scope.isOpen === true) {
        if (!$rootScope.$$phase) {
          scope.$apply(function() {
            scope.isOpen = false;
          });
        }
      }

      $popup.remove();
      element.unbind('keydown', inputKeydownBind);
      $document.unbind('click', documentClickBind);
    });
  };

  scope.getText = function(key) {
    return scope[key + 'Text'] || datepickerPopupConfig[key + 'Text'];
  };

  scope.isDisabled = function(date) {
    if (date === 'today') {
      date = new Date();
    }

    return scope.watchData.minDate && scope.compare(date, cache.minDate) < 0 ||
      scope.watchData.maxDate && scope.compare(date, cache.maxDate) > 0;
  };

  scope.compare = function(date1, date2) {
    return new Date(date1.getFullYear(), date1.getMonth(), date1.getDate()) - new Date(date2.getFullYear(), date2.getMonth(), date2.getDate());
  };

  // Inner change
  scope.dateSelection = function(dt) {
    if (angular.isDefined(dt)) {
      scope.date = dt;
    }
    var date = scope.date ? dateFilter(scope.date, dateFormat) : null; // Setting to NULL is necessary for form validators to function
    element.val(date);
    ngModel.$setViewValue(date);

    if (closeOnDateSelection) {
      scope.isOpen = false;
      element[0].focus();
    }
  };

  scope.keydown = function(evt) {
    if (evt.which === 27) {
      scope.isOpen = false;
      element[0].focus();
    }
  };

  scope.select = function(date) {
    if (date === 'today') {
      var today = new Date();
      if (angular.isDate(scope.date)) {
        date = new Date(scope.date);
        date.setFullYear(today.getFullYear(), today.getMonth(), today.getDate());
      } else {
        date = new Date(today.setHours(0, 0, 0, 0));
      }
    }
    scope.dateSelection(date);
  };

  scope.close = function() {
    scope.isOpen = false;
    element[0].focus();
  };

  scope.disabled = angular.isDefined(attrs.disabled) || false;
  if (attrs.ngDisabled) {
    scope.$parent.$watch($parse(attrs.ngDisabled), function(disabled) {
      scope.disabled = disabled;
    });
  }

  scope.$watch('isOpen', function(value) {
    if (value) {
      if (!scope.disabled) {
        scope.position = appendToBody ? $position.offset(element) : $position.position(element);
        scope.position.top = scope.position.top + element.prop('offsetHeight');

        $timeout(function() {
          if (onOpenFocus) {
            scope.$broadcast('uib:datepicker.focus');
          }
          $document.bind('click', documentClickBind);
        }, 0, false);
      } else {
        scope.isOpen = false;
      }
    } else {
      $document.unbind('click', documentClickBind);
    }
  });

  function cameltoDash(string) {
    return string.replace(/([A-Z])/g, function($1) { return '-' + $1.toLowerCase(); });
  }

  function parseDate(viewValue) {
    if (angular.isNumber(viewValue)) {
      // presumably timestamp to date object
      viewValue = new Date(viewValue);
    }

    if (!viewValue) {
      return null;
    }

    if (angular.isDate(viewValue) && !isNaN(viewValue)) {
      return viewValue;
    }

    if (angular.isString(viewValue)) {
      var date = dateParser.parse(viewValue, dateFormat, scope.date);
      if (isNaN(date)) {
        for (var i = 0; i < altInputFormats.length; i++) {
          date = dateParser.parse(viewValue, altInputFormats[i], scope.date);
          if (!isNaN(date)) {
            break;
          }
        }
      }
      if (isNaN(date)) {
        return undefined;
      }

      return date;
    }

    return undefined;
  }

  function validator(modelValue, viewValue) {
    var value = modelValue || viewValue;

    if (!attrs.ngRequired && !value) {
      return true;
    }

    if (angular.isNumber(value)) {
      value = new Date(value);
    }

    if (!value) {
      return true;
    }

    if (angular.isDate(value) && !isNaN(value)) {
      return true;
    }

    if (angular.isString(value)) {
      var date = dateParser.parse(value, dateFormat);
      if (isNaN(date)) {
        for (var i = 0; i < altInputFormats.length; i++) {
          date = dateParser.parse(value, altInputFormats[i]);
          if (!isNaN(date)) {
            break;
          }
        }
      }
      return !isNaN(date);
    }

    return false;
  }

  function documentClickBind(event) {
    if (!scope.isOpen && scope.disabled) {
      return;
    }

    var popup = $popup[0];
    var dpContainsTarget = element[0].contains(event.target);
    // The popup node may not be an element node
    // In some browsers (IE) only element nodes have the 'contains' function
    var popupContainsTarget = popup.contains !== undefined && popup.contains(event.target);
    if (scope.isOpen && !(dpContainsTarget || popupContainsTarget)) {
      scope.$apply(function() {
        scope.isOpen = false;
      });
    }
  }

  function inputKeydownBind(evt) {
    if (evt.which === 27 && scope.isOpen) {
      evt.preventDefault();
      evt.stopPropagation();
      scope.$apply(function() {
        scope.isOpen = false;
      });
      element[0].focus();
    } else if (evt.which === 40 && !scope.isOpen) {
      evt.preventDefault();
      evt.stopPropagation();
      scope.$apply(function() {
        scope.isOpen = true;
      });
    }
  }
}])

.directive('uibDatepickerPopup', function() {
  return {
    require: ['ngModel', 'uibDatepickerPopup'],
    controller: 'UibDatepickerPopupController',
    scope: {
      isOpen: '=?',
      currentText: '@',
      clearText: '@',
      closeText: '@',
      dateDisabled: '&',
      customClass: '&'
    },
    link: function(scope, element, attrs, ctrls) {
      var ngModel = ctrls[0],
        ctrl = ctrls[1];

      ctrl.init(ngModel);
    }
  };
})

.directive('uibDatepickerPopupWrap', function() {
  return {
    replace: true,
    transclude: true,
    templateUrl: function(element, attrs) {
      return attrs.templateUrl || 'uib/template/datepicker/popup.html';
    }
  };
});