[WEB-1136] chore: Kanban drag and drop improvements (#4350)

* Kanban DnD improvement

* minor fixes for kanban dnd improvement

* change scroll duration

* fix feedback on the UX

* add highlight before drop

* add toast message explain drag and drop is currently disabled

* Change warning dnd message

* add comments

* fix minor build error

web/components/issues/issue-layouts/kanban/base-kanban-root.tsx

@@ -75,6 +75,8 @@ export const BaseKanBanRoot: React.FC<IBaseKanBanLayout> = observer((props: IBas
   const sub_group_by = displayFilters?.sub_group_by;
   const group_by = displayFilters?.group_by;
 
+  const orderBy = displayFilters?.order_by;
+
   const userDisplayFilters = displayFilters || null;
 
   const KanBanView = sub_group_by ? KanBanSwimLanes : KanBan;
@@ -157,7 +159,8 @@ export const BaseKanBanRoot: React.FC<IBaseKanBanLayout> = observer((props: IBas
       issues.getIssueIds,
       updateIssue,
       group_by,
-      sub_group_by
+      sub_group_by,
+      orderBy !== "sort_order"
     ).catch((err) => {
       setToast({
         title: "Error",
@@ -259,6 +262,7 @@ export const BaseKanBanRoot: React.FC<IBaseKanBanLayout> = observer((props: IBas
               displayProperties={displayProperties}
               sub_group_by={sub_group_by}
               group_by={group_by}
+              orderBy={orderBy}
               updateIssue={updateIssue}
               quickActions={renderQuickActions}
               handleKanbanFilters={handleKanbanFilters}

web/components/issues/issue-layouts/kanban/block.tsx

@@ -4,10 +4,11 @@ import { draggable, dropTargetForElements } from "@atlaskit/pragmatic-drag-and-d
 import { observer } from "mobx-react-lite";
 import { TIssue, IIssueDisplayProperties, IIssueMap } from "@plane/types";
 // hooks
-import { ControlLink, DropIndicator, Tooltip } from "@plane/ui";
+import { ControlLink, DropIndicator, TOAST_TYPE, Tooltip, setToast } from "@plane/ui";
 import RenderIfVisible from "@/components/core/render-if-visible-HOC";
 import { cn } from "@/helpers/common.helper";
 import { useApplication, useIssueDetail, useKanbanView, useProject } from "@/hooks/store";
+import useOutsideClickDetector from "@/hooks/use-outside-click-detector";
 import { usePlatformOS } from "@/hooks/use-platform-os";
 // components
 import { TRenderQuickActions } from "../list/list-view-types";
@@ -131,6 +132,10 @@ export const KanbanIssueBlock: React.FC<IssueBlockProps> = observer((props) => {
 
   const isDragAllowed = !isDragDisabled && !issue?.tempId && canEditIssueProperties;
 
+  useOutsideClickDetector(cardRef, () => {
+    cardRef?.current?.classList?.remove("highlight");
+  });
+
   // Make Issue block both as as Draggable and,
   // as a DropTarget for other issues being dragged to get the location of drop
   useEffect(() => {
@@ -177,7 +182,15 @@ export const KanbanIssueBlock: React.FC<IssueBlockProps> = observer((props) => {
       <div
         // make Z-index higher at the beginning of drag, to have a issue drag image of issue block without any overlaps
         className={cn("group/kanban-block relative p-1.5", { "z-[1]": isCurrentBlockDragging })}
-        onDragStart={() => isDragAllowed && setIsCurrentBlockDragging(true)}
+        onDragStart={() => {
+          if (isDragAllowed) setIsCurrentBlockDragging(true);
+          else
+            setToast({
+              type: TOAST_TYPE.WARNING,
+              title: "Cannot move issue",
+              message: "Drag and drop is disabled for the current grouping",
+            });
+        }}
       >
         <ControlLink
           id={`issue-${issue.id}`}
@@ -186,12 +199,10 @@ export const KanbanIssueBlock: React.FC<IssueBlockProps> = observer((props) => {
           }`}
           ref={cardRef}
           className={cn(
-            "block rounded border-[0.5px] outline-[0.5px] outline-transparent w-full border-custom-border-200 bg-custom-background-100 text-sm transition-all hover:border-custom-border-400",
+            "block rounded border-[1px] outline-[0.5px] outline-transparent w-full border-custom-border-200 bg-custom-background-100 text-sm transition-all hover:border-custom-border-400",
-            {
+            { "hover:cursor-pointer": isDragAllowed },
-              "hover:cursor-pointer": isDragAllowed,
+            { "border border-custom-primary-70 hover:border-custom-primary-70": getIsIssuePeeked(issue.id) },
-              "border border-custom-primary-70 hover:border-custom-primary-70": getIsIssuePeeked(issue.id),
+            { "bg-custom-background-80 z-[100]": isCurrentBlockDragging }
-              "bg-custom-background-80 z-[100]": isCurrentBlockDragging,
-            }
           )}
           target="_blank"
           onClick={() => handleIssuePeekOverview(issue)}

web/components/issues/issue-layouts/kanban/default.tsx

@@ -11,6 +11,7 @@ import {
   TUnGroupedIssues,
   TIssueKanbanFilters,
   TIssueGroupByOptions,
+  TIssueOrderByOptions,
 } from "@plane/types";
 // constants
 // hooks
@@ -31,6 +32,7 @@ export interface IGroupByKanBan {
   displayProperties: IIssueDisplayProperties | undefined;
   sub_group_by: TIssueGroupByOptions | undefined;
   group_by: TIssueGroupByOptions | undefined;
+  orderBy: TIssueOrderByOptions | undefined;
   sub_group_id: string;
   isDragDisabled: boolean;
   updateIssue: ((projectId: string, issueId: string, data: Partial<TIssue>) => Promise<void>) | undefined;
@@ -79,6 +81,7 @@ const GroupByKanBan: React.FC<IGroupByKanBan> = observer((props) => {
     handleOnDrop,
     showEmptyGroup = true,
     subGroupIssueHeaderCount,
+    orderBy,
   } = props;
 
   const member = useMember();
@@ -170,6 +173,7 @@ const GroupByKanBan: React.FC<IGroupByKanBan> = observer((props) => {
                   displayProperties={displayProperties}
                   sub_group_by={sub_group_by}
                   group_by={group_by}
+                  orderBy={orderBy}
                   sub_group_id={sub_group_id}
                   isDragDisabled={isDragDisabled}
                   updateIssue={updateIssue}
@@ -196,6 +200,7 @@ export interface IKanBan {
   displayProperties: IIssueDisplayProperties | undefined;
   sub_group_by: TIssueGroupByOptions | undefined;
   group_by: TIssueGroupByOptions | undefined;
+  orderBy: TIssueOrderByOptions | undefined;
   sub_group_id?: string;
   updateIssue: ((projectId: string, issueId: string, data: Partial<TIssue>) => Promise<void>) | undefined;
   quickActions: TRenderQuickActions;
@@ -242,6 +247,7 @@ export const KanBan: React.FC<IKanBan> = observer((props) => {
     handleOnDrop,
     showEmptyGroup,
     subGroupIssueHeaderCount,
+    orderBy,
   } = props;
 
   const issueKanBanView = useKanbanView();
@@ -253,6 +259,7 @@ export const KanBan: React.FC<IKanBan> = observer((props) => {
       displayProperties={displayProperties}
       group_by={group_by}
       sub_group_by={sub_group_by}
+      orderBy={orderBy}
       sub_group_id={sub_group_id}
       isDragDisabled={!issueKanBanView?.getCanUserDragDrop(group_by, sub_group_by)}
       updateIssue={updateIssue}

web/components/issues/issue-layouts/kanban/kanban-group.tsx

@@ -11,14 +11,21 @@ import {
   TSubGroupedIssues,
   TUnGroupedIssues,
   TIssueGroupByOptions,
+  TIssueOrderByOptions,
 } from "@plane/types";
+import { ISSUE_ORDER_BY_OPTIONS } from "@/constants/issue";
 // helpers
 import { cn } from "@/helpers/common.helper";
 // hooks
 import { useProjectState } from "@/hooks/store";
 //components
 import { TRenderQuickActions } from "../list/list-view-types";
-import { KanbanDropLocation, getSourceFromDropPayload, getDestinationFromDropPayload } from "./utils";
+import {
+  KanbanDropLocation,
+  getSourceFromDropPayload,
+  getDestinationFromDropPayload,
+  highlightIssueOnDrop,
+} from "./utils";
 import { KanbanIssueBlocksList, KanBanQuickAddIssueForm } from ".";
 
 interface IKanbanGroup {
@@ -45,6 +52,7 @@ interface IKanbanGroup {
   groupByVisibilityToggle?: boolean;
   scrollableContainerRef?: MutableRefObject<HTMLDivElement | null>;
   handleOnDrop: (source: KanbanDropLocation, destination: KanbanDropLocation) => Promise<void>;
+  orderBy: TIssueOrderByOptions | undefined;
 }
 
 export const KanbanGroup = (props: IKanbanGroup) => {
@@ -52,6 +60,7 @@ export const KanbanGroup = (props: IKanbanGroup) => {
     groupId,
     sub_group_id,
     group_by,
+    orderBy,
     sub_group_by,
     issuesMap,
     displayProperties,
@@ -101,13 +110,15 @@ export const KanbanGroup = (props: IKanbanGroup) => {
           if (!source || !destination) return;
 
           handleOnDrop(source, destination);
+
+          highlightIssueOnDrop(payload.source.element.id, orderBy !== "sort_order");
         },
       }),
       autoScrollForElements({
         element,
       })
     );
-  }, [columnRef?.current, groupId, sub_group_id, setIsDraggingOverColumn]);
+  }, [columnRef?.current, groupId, sub_group_id, setIsDraggingOverColumn, orderBy]);
 
   const prePopulateQuickAddData = (
     groupByKey: string | undefined,
@@ -161,16 +172,33 @@ export const KanbanGroup = (props: IKanbanGroup) => {
     return preloadedData;
   };
 
+  const shouldOverlay = isDraggingOverColumn && orderBy !== "sort_order";
+  const readableOrderBy = ISSUE_ORDER_BY_OPTIONS.find((orderByObj) => orderByObj.key === orderBy)?.title;
+
   return (
     <div
       id={`${groupId}__${sub_group_id}`}
       className={cn(
         "relative h-full transition-all min-h-[50px]",
-        { "bg-custom-background-80": isDraggingOverColumn },
+        { "bg-custom-background-80 rounded": isDraggingOverColumn },
-        { "vertical-scrollbar scrollbar-md": !sub_group_by }
+        { "vertical-scrollbar scrollbar-md": !sub_group_by && !shouldOverlay }
       )}
       ref={columnRef}
     >
+      <div
+        //column overlay when issues are not sorted by manual
+        className={cn(
+          "absolute top-0 left-0 h-full w-full items-center text-sm font-medium text-custom-text-300 rounded",
+          {
+            "flex flex-col bg-custom-background-80 border-[1px] border-custom-border-300 z-[2]": shouldOverlay,
+          },
+          { hidden: !shouldOverlay },
+          { "justify-center": !sub_group_by }
+        )}
+      >
+        {readableOrderBy && <span className="pt-6">The layout is ordered by {readableOrderBy}.</span>}
+        <span>Drop here to move the issue.</span>
+      </div>
       <KanbanIssueBlocksList
         sub_group_id={sub_group_id}
         columnId={groupId}
@@ -181,7 +209,7 @@ export const KanbanGroup = (props: IKanbanGroup) => {
         updateIssue={updateIssue}
         quickActions={quickActions}
         canEditProperties={canEditProperties}
-        scrollableContainerRef={scrollableContainerRef}
+        scrollableContainerRef={sub_group_by ? scrollableContainerRef : columnRef}
       />
 
       {enableQuickIssueCreate && !disableIssueCreation && (

web/components/issues/issue-layouts/kanban/swimlanes.tsx

@@ -11,6 +11,7 @@ import {
   TUnGroupedIssues,
   TIssueKanbanFilters,
   TIssueGroupByOptions,
+  TIssueOrderByOptions,
 } from "@plane/types";
 // components
 import { useCycle, useLabel, useMember, useModule, useProject, useProjectState } from "@/hooks/store";
@@ -114,6 +115,7 @@ interface ISubGroupSwimlane extends ISubGroupSwimlaneHeader {
   disableIssueCreation?: boolean;
   storeType: KanbanStoreType;
   enableQuickIssueCreate: boolean;
+  orderBy: TIssueOrderByOptions | undefined;
   canEditProperties: (projectId: string | undefined) => boolean;
   addIssuesToView?: (issueIds: string[]) => Promise<TIssue>;
   quickAddCallback?: (
@@ -146,6 +148,7 @@ const SubGroupSwimlane: React.FC<ISubGroupSwimlane> = observer((props) => {
     viewId,
     scrollableContainerRef,
     handleOnDrop,
+    orderBy,
   } = props;
 
   const calculateIssueCount = (column_id: string) => {
@@ -181,7 +184,7 @@ const SubGroupSwimlane: React.FC<ISubGroupSwimlane> = observer((props) => {
           if (subGroupByVisibilityToggle.showGroup === false) return <></>;
           return (
             <div key={_list.id} className="flex flex-shrink-0 flex-col">
-              <div className="sticky top-[50px] z-[1] py-1 flex w-full items-center bg-custom-background-100 border-y-[0.5px] border-custom-border-200">
+              <div className="sticky top-[50px] z-[3] py-1 flex w-full items-center bg-custom-background-100 border-y-[0.5px] border-custom-border-200">
                 <div className="sticky left-0 flex-shrink-0">
                   <HeaderSubGroupByCard
                     column_id={_list.id}
@@ -216,6 +219,7 @@ const SubGroupSwimlane: React.FC<ISubGroupSwimlane> = observer((props) => {
                     viewId={viewId}
                     scrollableContainerRef={scrollableContainerRef}
                     handleOnDrop={handleOnDrop}
+                    orderBy={orderBy}
                     subGroupIssueHeaderCount={(groupByListId: string) =>
                       getSubGroupHeaderIssuesCount(issueIds as TSubGroupedIssues, groupByListId)
                     }
@@ -254,6 +258,7 @@ export interface IKanBanSwimLanes {
   viewId?: string;
   canEditProperties: (projectId: string | undefined) => boolean;
   scrollableContainerRef?: MutableRefObject<HTMLDivElement | null>;
+  orderBy: TIssueOrderByOptions | undefined;
 }
 
 export const KanBanSwimLanes: React.FC<IKanBanSwimLanes> = observer((props) => {
@@ -263,6 +268,7 @@ export const KanBanSwimLanes: React.FC<IKanBanSwimLanes> = observer((props) => {
     displayProperties,
     sub_group_by,
     group_by,
+    orderBy,
     updateIssue,
     storeType,
     quickActions,
@@ -313,7 +319,7 @@ export const KanBanSwimLanes: React.FC<IKanBanSwimLanes> = observer((props) => {
 
   return (
     <div className="relative">
-      <div className="sticky top-0 z-[2] h-[50px] bg-custom-background-90 px-2">
+      <div className="sticky top-0 z-[4] h-[50px] bg-custom-background-90 px-2">
         <SubGroupSwimlaneHeader
           issueIds={issueIds}
           group_by={group_by}
@@ -334,6 +340,7 @@ export const KanBanSwimLanes: React.FC<IKanBanSwimLanes> = observer((props) => {
           displayProperties={displayProperties}
           group_by={group_by}
           sub_group_by={sub_group_by}
+          orderBy={orderBy}
           updateIssue={updateIssue}
           quickActions={quickActions}
           kanbanFilters={kanbanFilters}

web/components/issues/issue-layouts/kanban/utils.ts

@@ -1,4 +1,5 @@
 import pull from "lodash/pull";
+import scrollIntoView from "smooth-scroll-into-view-if-needed";
 import { IPragmaticDropPayload, TIssue, TIssueGroupByOptions } from "@plane/types";
 import { ISSUE_FILTER_DEFAULT_DATA } from "@/store/issue/helpers/issue-helper.store";
 
@@ -87,14 +88,17 @@ export const getDestinationFromDropPayload = (payload: IPragmaticDropPayload): K
 const handleSortOrder = (
   destinationIssues: string[],
   destinationIssueId: string | undefined,
-  getIssueById: (issueId: string) => TIssue | undefined
+  getIssueById: (issueId: string) => TIssue | undefined,
+  shouldAddIssueAtTop = false
 ) => {
   const sortOrderDefaultValue = 65535;
   let currentIssueState = {};
 
   const destinationIndex = destinationIssueId
     ? destinationIssues.indexOf(destinationIssueId)
-    : destinationIssues.length;
+    : shouldAddIssueAtTop
+      ? 0
+      : destinationIssues.length;
 
   if (destinationIssues && destinationIssues.length > 0) {
     if (destinationIndex === 0) {
@@ -145,7 +149,8 @@ export const handleDragDrop = async (
   getIssueIds: (groupId?: string, subGroupId?: string) => string[] | undefined,
   updateIssue: ((projectId: string, issueId: string, data: Partial<TIssue>) => Promise<void>) | undefined,
   groupBy: TIssueGroupByOptions | undefined,
-  subGroupBy: TIssueGroupByOptions | undefined
+  subGroupBy: TIssueGroupByOptions | undefined,
+  shouldAddIssueAtTop = false
 ) => {
   if (!source.id || !groupBy || (subGroupBy && (!source.subGroupId || !destination.subGroupId))) return;
 
@@ -165,7 +170,7 @@ export const handleDragDrop = async (
   // for both horizontal and vertical dnd
   updatedIssue = {
     ...updatedIssue,
-    ...handleSortOrder(destinationIssues, destination.id, getIssueById),
+    ...handleSortOrder(destinationIssues, destination.id, getIssueById, shouldAddIssueAtTop),
   };
 
   if (source.groupId && destination.groupId && source.groupId !== destination.groupId) {
@@ -207,3 +212,18 @@ export const handleDragDrop = async (
     );
   }
 };
+
+/**
+ * This Method finds the DOM element with elementId, scrolls to it and highlights the issue block
+ * @param elementId
+ * @param shouldScrollIntoView
+ */
+export const highlightIssueOnDrop = (elementId: string | undefined, shouldScrollIntoView = true) => {
+  setTimeout(async () => {
+    const sourceElementId = elementId ?? "";
+    const sourceElement = document.getElementById(sourceElementId);
+    sourceElement?.classList?.add("highlight");
+    if (shouldScrollIntoView && sourceElement)
+      await scrollIntoView(sourceElement, { behavior: "smooth", block: "center", duration: 1500 });
+  }, 200);
+};

web/package.json

@@ -58,6 +58,7 @@
     "react-markdown": "^8.0.7",
     "react-popper": "^2.3.0",
     "sharp": "^0.32.1",
+    "smooth-scroll-into-view-if-needed": "^2.0.2",
     "swr": "^2.1.3",
     "tailwind-merge": "^2.0.0",
     "use-debounce": "^9.0.4",

web/styles/globals.css

@@ -632,3 +632,8 @@ div.web-view-spinner div.bar12 {
 .scrollbar-lg::-webkit-scrollbar-thumb {
   border: 4px solid rgba(0, 0, 0, 0);
 }
+
+/* highlight class */
+.highlight {
+  border: 1px solid rgb(var(--color-primary-100)) !important;
+}

yarn.lock

@@ -2755,7 +2755,7 @@
   dependencies:
     "@types/react" "*"
 
-"@types/react@*", "@types/react@18.2.42", "@types/react@^18.2.42":
+"@types/react@*", "@types/react@^18.2.42":
   version "18.2.42"
   resolved "https://registry.yarnpkg.com/@types/react/-/react-18.2.42.tgz#6f6b11a904f6d96dda3c2920328a97011a00aba7"
   integrity sha512-c1zEr96MjakLYus/wPnuWDo1/zErfdU9rNsIGmE+NV71nx88FG9Ttgo5dqorXTu/LImX2f63WBP986gJkMPNbA==
@@ -3699,6 +3699,11 @@ commondir@^1.0.1:
   resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
   integrity sha512-W9pAhw0ja1Edb5GVdIF1mjZw/ASI0AlShXM83UUGe2DVr5TdAPEA1OA8m/g8zWp9x6On7gqufY+FatDbC3MDQg==
 
+compute-scroll-into-view@^3.0.2:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/compute-scroll-into-view/-/compute-scroll-into-view-3.1.0.tgz#753f11d972596558d8fe7c6bcbc8497690ab4c87"
+  integrity sha512-rj8l8pD4bJ1nx+dAkMhV1xB5RuZEyVysfxJqB1pRchh1KVvwOv9b7CGB8ZfjTImVv2oF+sYMUkMZq6Na5Ftmbg==
+
 concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
@@ -7633,6 +7638,13 @@ schema-utils@^3.1.1:
     ajv "^6.12.5"
     ajv-keywords "^3.5.2"
 
+scroll-into-view-if-needed@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/scroll-into-view-if-needed/-/scroll-into-view-if-needed-3.1.0.tgz#fa9524518c799b45a2ef6bbffb92bcad0296d01f"
+  integrity sha512-49oNpRjWRvnU8NyGVmUaYG4jtTkNonFZI86MmGRDqBphEK2EXT9gdEUoQPZhuBM8yWHxCWbobltqYO5M4XrUvQ==
+  dependencies:
+    compute-scroll-into-view "^3.0.2"
+
 selecto@~1.26.3:
   version "1.26.3"
   resolved "https://registry.yarnpkg.com/selecto/-/selecto-1.26.3.tgz#12f259112b943d395731524e3bb0115da7372212"
@@ -7774,6 +7786,13 @@ slash@^3.0.0:
   resolved "https://registry.yarnpkg.com/slash/-/slash-3.0.0.tgz#6539be870c165adbd5240220dbe361f1bc4d4634"
   integrity sha512-g9Q1haeby36OSStwb4ntCGGGaKsaVSjQ68fBxoQcutl5fS1vuY18H3wSt3jFyFtrkx+Kz0V1G85A4MyAdDMi2Q==
 
+smooth-scroll-into-view-if-needed@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/smooth-scroll-into-view-if-needed/-/smooth-scroll-into-view-if-needed-2.0.2.tgz#5bd4ebef668474d6618ce8704650082e93068371"
+  integrity sha512-z54WzUSlM+xHHvJu3lMIsh+1d1kA4vaakcAtQvqzeGJ5Ffau7EKjpRrMHh1/OBo5zyU2h30ZYEt77vWmPHqg7Q==
+  dependencies:
+    scroll-into-view-if-needed "^3.1.0"
+
 snake-case@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/snake-case/-/snake-case-3.0.4.tgz#4f2bbd568e9935abdfd593f34c691dadb49c452c"