1 files changed, 100 insertions, 0 deletions
diff --git a/src/client/elm/LoggedIn/View/Paging.elm b/src/client/elm/LoggedIn/View/Paging.elm
new file mode 100644
index 0000000..0a149e9
--- /dev/null
+++ b/src/client/elm/LoggedIn/View/Paging.elm
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+module LoggedIn.View.Paging
+  ( paymentsPaging
+  ) where
+
+import Signal exposing (Address)
+
+import Html exposing (..)
+import Html.Attributes exposing (..)
+import Html.Events exposing (..)
+
+import LoggedIn.Action as LoggedInAction
+import LoggedIn.Model as LoggedInModel
+
+import Action exposing (..)
+import Model.Payment exposing (perPage)
+
+import View.Icon exposing (renderIcon)
+
+showedPages : Int
+showedPages = 5
+
+paymentsPaging : Address Action -> LoggedInModel.Model -> Html
+paymentsPaging address loggedInModel =
+  let maxPage = ceiling (toFloat loggedInModel.paymentsCount / toFloat perPage)
+      pages = truncatePages loggedInModel.currentPage [1..maxPage]
+  in  if maxPage == 1
+        then
+          text ""
+        else
+          div
+            [ class "pages" ]
+            (  ( if loggedInModel.currentPage > 1
+                   then [ firstPage address, previousPage address loggedInModel ]
+                   else []
+               )
+            ++ ( List.map (paymentsPage address loggedInModel) pages)
+            ++ ( if loggedInModel.currentPage < maxPage
+                   then [ nextPage address loggedInModel, lastPage address maxPage ]
+                   else []
+               )
+            )
+
+truncatePages : Int -> List Int -> List Int
+truncatePages currentPage pages =
+  let totalPages = List.length pages
+      showedLeftPages = ceiling ((toFloat showedPages - 1) / 2)
+      showedRightPages = floor ((toFloat showedPages - 1) / 2)
+      truncatedPages =
+        if currentPage < showedLeftPages then
+          [1..showedPages]
+        else if currentPage > totalPages - showedRightPages then
+          [(totalPages - showedPages)..totalPages]
+        else
+          [(currentPage - showedLeftPages)..(currentPage + showedRightPages)]
+  in  List.filter (flip List.member pages) truncatedPages
+
+firstPage : Address Action -> Html
+firstPage address =
+  button
+    [ class "page"
+    , onClick address (UpdateLoggedIn (LoggedInAction.UpdatePage 1))
+    ]
+    [ renderIcon "fast-backward" ]
+
+previousPage : Address Action -> LoggedInModel.Model -> Html
+previousPage address loggedInModel =
+  button
+    [ class "page"
+    , onClick address (UpdateLoggedIn (LoggedInAction.UpdatePage (loggedInModel.currentPage - 1)))
+    ]
+    [ renderIcon "backward" ]
+
+nextPage : Address Action -> LoggedInModel.Model -> Html
+nextPage address loggedInModel =
+  button
+    [ class "page"
+    , onClick address (UpdateLoggedIn (LoggedInAction.UpdatePage (loggedInModel.currentPage + 1)))
+    ]
+    [ renderIcon "forward" ]
+
+lastPage : Address Action -> Int -> Html
+lastPage address maxPage =
+  button
+    [ class "page"
+    , onClick address (UpdateLoggedIn (LoggedInAction.UpdatePage maxPage))
+    ]
+    [ renderIcon "fast-forward" ]
+
+paymentsPage : Address Action -> LoggedInModel.Model -> Int -> Html
+paymentsPage address loggedInModel page =
+  let onCurrentPage = page == loggedInModel.currentPage
+  in  button
+        [ classList
+            [ ("page", True)
+            , ("current", onCurrentPage)
+            ]
+        , onClick address <|
+            if onCurrentPage then Action.NoOp else UpdateLoggedIn (LoggedInAction.UpdatePage page)
+        ]
+        [ text (toString page) ]