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t=gantt._undo.monitor,n={onBeforeUndo:"onAfterUndo",onBeforeRedo:"onAfterRedo"};for(var e in n)gantt.attachEvent(e,function(){return t.startIgnore(),!0}),gantt.attachEvent(n[e],function(){return t.stopIgnore(),!0});var o=["onTaskDragStart","onAfterTaskUpdate","onAfterTaskDelete","onBeforeBatchUpdate"];for(e=0;e<o.length;e++)gantt.attachEvent(o[e],function(){return t.startBatchAction(),!0});function a(n){return t.setInitialTask(n),gantt.eachTask(function(n){t.setInitialTask(n.id)},n),!0}gantt.attachEvent("onBeforeTaskDrag",a),gantt.attachEvent("onLightbox",a),gantt.attachEvent("onBeforeTaskAutoSchedule",function(t){return a(t.id),!0});var i=null;function s(){i||(i=setTimeout(function(){i=null}),t.clearInitialTasks(),gantt.eachTask(function(n){t.setInitialTask(n.id)}))}gantt.attachEvent("onBeforeTaskDelete",function(n){a(n);var e=[];return 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o=gantt._undo,a=0;a<t.length;a++)for(var i=t[a],s=0;s<i.commands.length;s++)i.commands[s].entity==o.command.entity.task?c(i.commands[s],n,e):i.commands[s].entity==o.command.entity.link&&g(i.commands[s],n,e)}function h(t,n,e){for(var o=gantt._undo,a=0;a<t.length;a++)for(var i=t[a],s=0;s<i.commands.length;s++){var d=i.commands[s];d.entity==o.command.entity.link&&(d.value&&d.value.id==n&&(d.value.id=e),d.oldValue&&d.oldValue.id==n&&(d.oldValue.id=e))}}d.attachEvent("onBeforeItemMove",function(n,e,o){return t.isMoveEventsIgnored()||s(),!0}),d.attachEvent("onAfterItemMove",function(n,e,o){return t.isMoveEventsIgnored()||t.onTaskMoved(r(n)),!0}),gantt.attachEvent("onRowDragStart",function(n,e,o){return t.toggleIgnoreMoveEvents(!0),s(),!0}),gantt.attachEvent("onRowDragEnd",function(n,e){return t.onTaskMoved(r(n)),t.toggleIgnoreMoveEvents(),!0}),gantt.attachEvent("onTaskIdChange",function(t,n){var e=gantt._undo;f(e._undoStack,t,n),f(e._redoStack,t,n)}),gantt.attachEvent("onLinkIdChange",function(t,n){var e=gantt._undo;h(e._undoStack,t,n),h(e._redoStack,t,n)}),gantt.attachEvent("onGanttReady",function(){gantt._undo.updateConfigs()})}()}})});
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