pagination.js.coffee.erb

@app.directive "uiPagination", ->
    restrict: "EA"
    replace: true
    templateUrl: "<%= asset_path "pagination" %>"
    scope:
        cur: "="
        total: "="
        display: "@"

    link: (scope, element, attrs) ->
        calcPages = ->
            display = +scope.display
            delta = Math.floor(display / 2)
            scope.start = scope.cur - delta
            scope.start = 1  if scope.start < 1
            scope.end = scope.start + display - 1
            if scope.end > scope.total
                scope.end = scope.total
                scope.start = scope.end - (display - 1)
                scope.start = 1  if scope.start < 1
            scope.pages = []
            i = scope.start

            while i <= scope.end
                scope.pages.push i
                ++i
            return

        scope.$watch "cur", calcPages
        scope.$watch "total", calcPages
        scope.$watch "display", calcPages
        scope.isCurrent = (index) ->
            scope.cur is index

        scope.setCurrent = (index) ->
            scope.cur = index
            return

        scope.hasPrev = ->
            scope.cur > 1

        scope.prev = ->
            scope.cur--  if scope.hasPrev()
            return

        scope.hasNext = ->
            scope.cur < scope.total

        scope.next = ->
            scope.cur++  if scope.hasNext()
            return

        scope.firstPage = ->
            scope.start is 1

        scope.goToFirstPage = ->
            scope.cur = 1  unless scope.firstPage()
            return

        scope.lastPage = ->
            scope.end is scope.total

        scope.goToLastPage = ->
            scope.cur = scope.total  unless scope.lastPage()
            return

        return