Merge branch 'sprint/sunhao/optimize_kanban' into 'master'

* task #54187, optimize kanban with a lot of cards with virtualList.

See merge request easycorp/zentaopms!3511

module/execution/js/executionkanban.js

@@ -169,9 +169,10 @@ $(function()
 
     $('#kanban').kanban(
     {
-        data:          processKanbanData(),
-        laneNameWidth: 5,
-        virtualize:    true,
+        data:            processKanbanData(),
+        laneNameWidth:   5,
+        virtualize:      true,
+        virtualCardList: true,
         droppable:
         {
             selector:     '.kanban-item:not(.kanban-item-span)',

module/execution/js/kanban.js

@@ -1215,7 +1215,7 @@ function initKanban($kanban)
         calcColHeight:     calcColHeight,
         minColWidth:       240,
         maxColWidth:       240,
-        cardHeight:        60,
+        cardHeight:        getCardHeight(),
         fluidBoardWidth:   fluidBoard,
         displayCards:      displayCards,
         createColumnText:  kanbanLang.createColumn,
@@ -1226,6 +1226,8 @@ function initKanban($kanban)
         onRenderHeaderCol: renderHeaderCol,
         onRenderCount:     renderCount,
         droppable:         groupBy == 'default' ? {target: findDropColumns, finish:handleFinishDrop} : false,
+        virtualize:        true,
+        virtualCardList:   true
     });
 
     $kanban.on('click', '.action-cancel', hideKanbanAction);

module/execution/js/taskkanban.js

@@ -1057,6 +1057,7 @@ $(function()
         virtualize:           true,
         onAction:             handleKanbanAction,
         virtualRenderOptions: {container: '#kanbanContainer>.panel-body'},
+        virtualCardList:      true,
         droppable:
         {
             target:       findDropColumns,