fix: side by side blank state, tooltip, and add button UI (#31479)

## Description

This PR fixes following issues
- JS and Query Blank state issue in side by side mode.
- Added tooltip for minimize and maximize button.
- Fixed add button getting squeezed issue.

#### PR fixes following issue(s)
Fixes https://github.com/appsmithorg/appsmith/issues/31330

#### Media


https://github.com/appsmithorg/appsmith/assets/87797149/e0e30e47-1f3a-447d-93a5-144e48360cec



#### Type of change

- Bug fix (non-breaking change which fixes an issue)
- New feature (non-breaking change which adds functionality)

## Testing
>
#### How Has This Been Tested?
> Please describe the tests that you ran to verify your changes. Also
list any relevant details for your test configuration.
> Delete anything that is not relevant
- [ ] Manual
- [ ] JUnit
- [ ] Jest
- [ ] Cypress
>
>
#### Test Plan
> Add Testsmith test cases links that relate to this PR
>
>
#### Issues raised during DP testing
> Link issues raised during DP testing for better visiblity and tracking
(copy link from comments dropped on this PR)
>
>
>
## Checklist:
#### Dev activity
- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my own code
- [x] I have commented my code, particularly in hard-to-understand areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] PR is being merged under a feature flag


#### QA activity:
- [ ] [Speedbreak
features](https://github.com/appsmithorg/TestSmith/wiki/Guidelines-for-test-plans#speedbreakers-)
have been covered
- [ ] Test plan covers all impacted features and [areas of
interest](https://github.com/appsmithorg/TestSmith/wiki/Guidelines-for-test-plans#areas-of-interest-)
- [ ] Test plan has been peer reviewed by project stakeholders and other
QA members
- [ ] Manually tested functionality on DP
- [ ] We had an implementation alignment call with stakeholders post QA
Round 2
- [ ] Cypress test cases have been added and approved by SDET/manual QA
- [ ] Added `Test Plan Approved` label after Cypress tests were reviewed
- [ ] Added `Test Plan Approved` label after JUnit tests were reviewed


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- Introduced tooltips for maximize and minimize buttons in the editor
interface, enhancing user interaction.
- Added new empty state components for JavaScript actions and queries,
improving the user experience for adding new elements.
- Implemented split-screen empty states for both JavaScript actions and
queries, catering to users who prefer side-by-side editing.

- **Enhancements**
- Updated the editor's segmented header and full-screen tabs with
tooltips, providing clearer guidance on button functionalities.
- Adjusted the maximum width of tabs in the editor to accommodate
additional elements, ensuring a more organized display.

- **Refactor**
- Replaced the use of `EmptyState` with new `Empty` components in
JavaScript and Query editor panes, streamlining the interface and
aligning with new functionalities.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

app/client/src/ce/constants/messages.ts

@@ -2455,3 +2455,7 @@ export const HEADER_TITLES = {
 export const PASTE_FAILED = (str: string): string => `Paste failed! ${str}`;
 
 export const CREATE_A_NEW_ITEM = (item: string) => `Create a new ${item}`;
+
+export const MAXIMIZE_BUTTON_TOOLTIP = () =>
+  `Expand code editor to full-screen`;
+export const MINIMIZE_BUTTON_TOOLTIP = () => `Open code editor next to the UI`;

app/client/src/ce/pages/Editor/IDE/EditorPane/JS/hooks.ts

@@ -13,6 +13,7 @@ import JSEditor from "pages/Editor/JSEditor";
 import AddJS from "pages/Editor/IDE/EditorPane/JS/Add";
 import { ADD_PATH } from "@appsmith/constants/routes/appRoutes";
 import ListJS from "pages/Editor/IDE/EditorPane/JS/List";
+import { BlankStateContainer } from "pages/Editor/IDE/EditorPane/JS/BlankStateContainer";
 
 export const useJSAdd = () => {
   const pageId = useSelector(getCurrentPageId);
@@ -56,6 +57,12 @@ export const useJSSegmentRoutes = (path: string): UseRoutes => {
         component: JSEditor,
         path: [path + "/:collectionId"],
       },
+      {
+        key: "JSEmpty",
+        component: BlankStateContainer,
+        exact: true,
+        path: [path],
+      },
     ];
   }
   return [

app/client/src/ce/pages/Editor/IDE/EditorPane/Query/hooks.ts

@@ -34,6 +34,7 @@ import type { AppState } from "@appsmith/reducers";
 import keyBy from "lodash/keyBy";
 import { getPluginEntityIcon } from "pages/Editor/Explorer/ExplorerIcons";
 import type { ListItemProps } from "design-system";
+import { BlankStateContainer } from "pages/Editor/IDE/EditorPane/Query/BlankStateContainer";
 
 export const useQueryAdd = () => {
   const location = useLocation();
@@ -96,6 +97,7 @@ export const useGroupedAddQueryOperations = (): GroupedAddOperations => {
 export const useQuerySegmentRoutes = (path: string): UseRoutes => {
   const isSideBySideEnabled = useSelector(getIsSideBySideEnabled);
   const editorMode = useSelector(getIDEViewMode);
+
   if (isSideBySideEnabled && editorMode === EditorViewMode.SplitScreen) {
     return [
       {
@@ -130,6 +132,12 @@ export const useQuerySegmentRoutes = (path: string): UseRoutes => {
         exact: true,
         path: [path + "/:queryId"],
       },
+      {
+        key: "QueryEmpty",
+        component: BlankStateContainer,
+        exact: true,
+        path: [path],
+      },
     ];
   }
   return [

app/client/src/pages/Editor/IDE/EditorPane/JS/BlankState.tsx

@@ -0,0 +1,32 @@
+import React from "react";
+import { useSelector } from "react-redux";
+
+import { EDITOR_PANE_TEXTS, createMessage } from "@appsmith/constants/messages";
+import { getPagePermissions } from "selectors/editorSelectors";
+import { useFeatureFlag } from "utils/hooks/useFeatureFlag";
+import { getHasCreateActionPermission } from "@appsmith/utils/BusinessFeatures/permissionPageHelpers";
+import { FEATURE_FLAG } from "@appsmith/entities/FeatureFlag";
+import { useJSAdd } from "@appsmith/pages/Editor/IDE/EditorPane/JS/hooks";
+import { EmptyState } from "../components/EmptyState";
+
+const BlankState: React.FC = () => {
+  const pagePermissions = useSelector(getPagePermissions);
+  const isFeatureEnabled = useFeatureFlag(FEATURE_FLAG.license_gac_enabled);
+  const canCreateActions = getHasCreateActionPermission(
+    isFeatureEnabled,
+    pagePermissions,
+  );
+  const addButtonClickHandler = useJSAdd();
+
+  return (
+    <EmptyState
+      buttonClassName="t--add-item"
+      buttonText={createMessage(EDITOR_PANE_TEXTS.js_add_button)}
+      description={createMessage(EDITOR_PANE_TEXTS.js_blank_state_description)}
+      icon={"js-square-v3"}
+      onClick={canCreateActions ? addButtonClickHandler : undefined}
+    />
+  );
+};
+
+export { BlankState };

app/client/src/pages/Editor/IDE/EditorPane/JS/BlankStateContainer.tsx

@@ -0,0 +1,14 @@
+import React from "react";
+import { Flex } from "design-system";
+
+import { BlankState } from "./BlankState";
+
+const BlankStateContainer: React.FC = () => {
+  return (
+    <Flex flexDirection="column" gap="spaces-3" overflow="hidden" py="spaces-3">
+      <BlankState />
+    </Flex>
+  );
+};
+
+export { BlankStateContainer };

app/client/src/pages/Editor/IDE/EditorPane/JS/List.tsx

@@ -14,11 +14,11 @@ import { useFeatureFlag } from "utils/hooks/useFeatureFlag";
 import { FEATURE_FLAG } from "@appsmith/entities/FeatureFlag";
 import { getHasCreateActionPermission } from "@appsmith/utils/BusinessFeatures/permissionPageHelpers";
 import { createMessage, EDITOR_PANE_TEXTS } from "@appsmith/constants/messages";
-import { EmptyState } from "../components/EmptyState";
 import { ActionParentEntityType } from "@appsmith/entities/Engine/actionHelpers";
 import { FilesContextProvider } from "pages/Editor/Explorer/Files/FilesContextProvider";
 import { useJSAdd } from "@appsmith/pages/Editor/IDE/EditorPane/JS/hooks";
 import { JSListItem } from "@appsmith/pages/Editor/IDE/EditorPane/JS/ListItem";
+import { BlankState } from "./BlankState";
 
 const JSContainer = styled(Flex)`
   & .t--entity-item {
@@ -114,17 +114,7 @@ const ListJSObjects = () => {
         </Flex>
       </FilesContextProvider>
 
-      {(!jsList || jsList.length === 0) && (
-        <EmptyState
-          buttonClassName="t--add-item"
-          buttonText={createMessage(EDITOR_PANE_TEXTS.js_add_button)}
-          description={createMessage(
-            EDITOR_PANE_TEXTS.js_blank_state_description,
-          )}
-          icon={"js-square-v3"}
-          onClick={canCreateActions ? addButtonClickHandler : undefined}
-        />
-      )}
+      {(!jsList || jsList.length === 0) && <BlankState />}
     </JSContainer>
   );
 };

app/client/src/pages/Editor/IDE/EditorPane/Query/BlankState.tsx

@@ -0,0 +1,34 @@
+import React from "react";
+import { useSelector } from "react-redux";
+
+import { EDITOR_PANE_TEXTS, createMessage } from "@appsmith/constants/messages";
+import { getHasCreateActionPermission } from "@appsmith/utils/BusinessFeatures/permissionPageHelpers";
+import { getPagePermissions } from "selectors/editorSelectors";
+import { useFeatureFlag } from "utils/hooks/useFeatureFlag";
+import { FEATURE_FLAG } from "@appsmith/entities/FeatureFlag";
+import { EmptyState } from "../components/EmptyState";
+import { useQueryAdd } from "@appsmith/pages/Editor/IDE/EditorPane/Query/hooks";
+
+const BlankState: React.FC = () => {
+  const pagePermissions = useSelector(getPagePermissions);
+  const isFeatureEnabled = useFeatureFlag(FEATURE_FLAG.license_gac_enabled);
+  const canCreateActions = getHasCreateActionPermission(
+    isFeatureEnabled,
+    pagePermissions,
+  );
+  const addButtonClickHandler = useQueryAdd();
+
+  return (
+    <EmptyState
+      buttonClassName="t--add-item"
+      buttonText={createMessage(EDITOR_PANE_TEXTS.query_add_button)}
+      description={createMessage(
+        EDITOR_PANE_TEXTS.query_blank_state_description,
+      )}
+      icon={"queries-v3"}
+      onClick={canCreateActions ? addButtonClickHandler : undefined}
+    />
+  );
+};
+
+export { BlankState };

app/client/src/pages/Editor/IDE/EditorPane/Query/BlankStateContainer.tsx

@@ -0,0 +1,20 @@
+import React from "react";
+import { Flex } from "design-system";
+
+import { BlankState } from "./BlankState";
+
+const BlankStateContainer: React.FC = () => {
+  return (
+    <Flex
+      flex="1"
+      flexDirection="column"
+      gap="spaces-3"
+      overflow="hidden"
+      py="spaces-3"
+    >
+      <BlankState />
+    </Flex>
+  );
+};
+
+export { BlankStateContainer };

app/client/src/pages/Editor/IDE/EditorPane/Query/List.tsx

@@ -15,10 +15,10 @@ import { selectQuerySegmentEditorList } from "@appsmith/selectors/appIDESelector
 import { ActionParentEntityType } from "@appsmith/entities/Engine/actionHelpers";
 import { FilesContextProvider } from "pages/Editor/Explorer/Files/FilesContextProvider";
 import { createMessage, EDITOR_PANE_TEXTS } from "@appsmith/constants/messages";
-import { EmptyState } from "../components/EmptyState";
 import { useQueryAdd } from "@appsmith/pages/Editor/IDE/EditorPane/Query/hooks";
 import { QueryListItem } from "@appsmith/pages/Editor/IDE/EditorPane/Query/ListItem";
 import { getShowWorkflowFeature } from "@appsmith/selectors/workflowSelectors";
+import { BlankState } from "./BlankState";
 
 const ListQuery = () => {
   const pageId = useSelector(getCurrentPageId) as string;
@@ -98,17 +98,7 @@ const ListQuery = () => {
         })}
       </Flex>
 
-      {Object.keys(files).length === 0 && (
-        <EmptyState
-          buttonClassName="t--add-item"
-          buttonText={createMessage(EDITOR_PANE_TEXTS.query_add_button)}
-          description={createMessage(
-            EDITOR_PANE_TEXTS.query_blank_state_description,
-          )}
-          icon={"queries-v3"}
-          onClick={canCreateActions ? addButtonClickHandler : undefined}
-        />
-      )}
+      {Object.keys(files).length === 0 && <BlankState />}
     </Flex>
   );
 };

app/client/src/pages/Editor/IDE/EditorPane/components/SegmentedHeader.tsx

@@ -1,6 +1,10 @@
 import React from "react";
-import { Button, Flex, SegmentedControl } from "design-system";
-import { createMessage, EDITOR_PANE_TEXTS } from "@appsmith/constants/messages";
+import { Button, Flex, SegmentedControl, Tooltip } from "design-system";
+import {
+  createMessage,
+  EDITOR_PANE_TEXTS,
+  MAXIMIZE_BUTTON_TOOLTIP,
+} from "@appsmith/constants/messages";
 import {
   EditorEntityTab,
   EditorViewMode,
@@ -82,15 +86,17 @@ const SegmentedHeader = () => {
       {isSideBySideEnabled &&
       editorMode === EditorViewMode.SplitScreen &&
       segment !== EditorEntityTab.UI ? (
-        <Button
-          id="editor-mode-maximize"
-          isIconButton
-          kind="tertiary"
-          onClick={() =>
-            dispatch(setIdeEditorViewMode(EditorViewMode.FullScreen))
-          }
-          startIcon="maximize-v3"
-        />
+        <Tooltip content={createMessage(MAXIMIZE_BUTTON_TOOLTIP)}>
+          <Button
+            id="editor-mode-maximize"
+            isIconButton
+            kind="tertiary"
+            onClick={() =>
+              dispatch(setIdeEditorViewMode(EditorViewMode.FullScreen))
+            }
+            startIcon="maximize-v3"
+          />
+        </Tooltip>
       ) : null}
     </Container>
   );

app/client/src/pages/Editor/IDE/EditorTabs/FullScreenTabs.tsx

@@ -1,6 +1,6 @@
 import React, { useCallback } from "react";
 import { useDispatch, useSelector } from "react-redux";
-import { Button } from "design-system";
+import { Button, Tooltip } from "design-system";
 import { getIDEViewMode, getIsSideBySideEnabled } from "selectors/ideSelectors";
 import type { EntityItem } from "@appsmith/entities/IDE/constants";
 import {
@@ -14,6 +14,10 @@ import { useCurrentEditorState } from "../hooks";
 import { getCurrentPageId } from "@appsmith/selectors/entitiesSelector";
 import history, { NavigationMethod } from "utils/history";
 import { TabSelectors } from "./constants";
+import {
+  MINIMIZE_BUTTON_TOOLTIP,
+  createMessage,
+} from "@appsmith/constants/messages";
 
 const FullScreenTabs = () => {
   const dispatch = useDispatch();
@@ -44,13 +48,18 @@ const FullScreenTabs = () => {
   return (
     <Container>
       <FileTabs navigateToTab={onClick} tabs={files} />
-      <Button
-        id="editor-mode-minimize"
-        isIconButton
-        kind="tertiary"
-        onClick={setSplitScreenMode}
-        startIcon="minimize-v3"
-      />
+      <Tooltip
+        content={createMessage(MINIMIZE_BUTTON_TOOLTIP)}
+        placement="bottomRight"
+      >
+        <Button
+          id="editor-mode-minimize"
+          isIconButton
+          kind="tertiary"
+          onClick={setSplitScreenMode}
+          startIcon="minimize-v3"
+        />
+      </Tooltip>
     </Container>
   );
 };

app/client/src/pages/Editor/IDE/EditorTabs/SplitScreenTabs.tsx

@@ -54,7 +54,7 @@ const SplitScreenTabs = () => {
   if (!isSideBySideEnabled) return null;
   if (ideViewMode === EditorViewMode.FullScreen) return null;
   if (segment === EditorEntityTab.UI) return null;
-  return (
+  return files.length > 0 ? (
     <Container>
       <Button
         isIconButton
@@ -65,7 +65,7 @@ const SplitScreenTabs = () => {
       <FileTabs navigateToTab={onClick} tabs={files} />
       <ListButton items={overflowList} navigateToTab={onClick} />
     </Container>
-  );
+  ) : null;
 };
 
 export default SplitScreenTabs;

app/client/src/pages/Editor/IDE/EditorTabs/StyledComponents.tsx

@@ -11,8 +11,9 @@ import { DEFAULT_SPLIT_SCREEN_WIDTH } from "constants/AppConstants";
  * 4px  gap between every tabs * 4 (since max tab count is 5,
  *      there will be 5 gaps)
  * 26px Add button width
+ * 62px show more list button(considering 3 digit width as max)
  * ======================================
- * 54px
+ * 116px
  *
  */
 export const StyledTab = styled(Flex)`
@@ -28,7 +29,7 @@ export const StyledTab = styled(Flex)`
   border-top-right-radius: var(--ads-v2-border-radius);
   align-items: center;
   justify-content: center;
-  max-width: calc((${DEFAULT_SPLIT_SCREEN_WIDTH} - 54px) / 5);
+  max-width: calc((${DEFAULT_SPLIT_SCREEN_WIDTH} - 116px) / 5);
 
   // After element - the seperator in between tabs
   &:not(&.active):not(:has(+ .active)):not(:last-child):after {