link: function()

in signature/src/main/webapp/libs/angular-ui/ui-bootstrap-tpls-0.10.0.js [973:1087]
29 lines of code
8 McCabe index (conditional complexity)

    link: function(scope, element, attrs, ctrls) {
      var datepickerCtrl = ctrls[0], ngModel = ctrls[1];

      if (!ngModel) {
        return; // do nothing if no ng-model
      }

      // Configuration parameters
      var mode = 0, selected = new Date(), showWeeks = datepickerConfig.showWeeks;

      if (attrs.showWeeks) {
        scope.$parent.$watch($parse(attrs.showWeeks), function(value) {
          showWeeks = !! value;
          updateShowWeekNumbers();
        });
      } else {
        updateShowWeekNumbers();
      }

      if (attrs.min) {
        scope.$parent.$watch($parse(attrs.min), function(value) {
          datepickerCtrl.minDate = value ? new Date(value) : null;
          refill();
        });
      }
      if (attrs.max) {
        scope.$parent.$watch($parse(attrs.max), function(value) {
          datepickerCtrl.maxDate = value ? new Date(value) : null;
          refill();
        });
      }

      function updateShowWeekNumbers() {
        scope.showWeekNumbers = mode === 0 && showWeeks;
      }

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

      function refill( updateSelected ) {
        var date = null, valid = true;

        if ( ngModel.$modelValue ) {
          date = new Date( ngModel.$modelValue );

          if ( isNaN(date) ) {
            valid = false;
            $log.error('Datepicker directive: "ng-model" value must be a Date object, a number of milliseconds since 01.01.1970 or a string representing an RFC2822 or ISO 8601 date.');
          } else if ( updateSelected ) {
            selected = date;
          }
        }
        ngModel.$setValidity('date', valid);

        var currentMode = datepickerCtrl.modes[mode], data = currentMode.getVisibleDates(selected, date);
        angular.forEach(data.objects, function(obj) {
          obj.disabled = datepickerCtrl.isDisabled(obj.date, mode);
        });

        ngModel.$setValidity('date-disabled', (!date || !datepickerCtrl.isDisabled(date)));

        scope.rows = split(data.objects, currentMode.split);
        scope.labels = data.labels || [];
        scope.title = data.title;
      }

      function setMode(value) {
        mode = value;
        updateShowWeekNumbers();
        refill();
      }

      ngModel.$render = function() {
        refill( true );
      };

      scope.select = function( date ) {
        if ( mode === 0 ) {
          var dt = ngModel.$modelValue ? new Date( ngModel.$modelValue ) : new Date(0, 0, 0, 0, 0, 0, 0);
          dt.setFullYear( date.getFullYear(), date.getMonth(), date.getDate() );
          ngModel.$setViewValue( dt );
          refill( true );
        } else {
          selected = date;
          setMode( mode - 1 );
        }
      };
      scope.move = function(direction) {
        var step = datepickerCtrl.modes[mode].step;
        selected.setMonth( selected.getMonth() + direction * (step.months || 0) );
        selected.setFullYear( selected.getFullYear() + direction * (step.years || 0) );
        refill();
      };
      scope.toggleMode = function() {
        setMode( (mode + 1) % datepickerCtrl.modes.length );
      };
      scope.getWeekNumber = function(row) {
        return ( mode === 0 && scope.showWeekNumbers && row.length === 7 ) ? getISO8601WeekNumber(row[0].date) : null;
      };

      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;
      }
    }