Implement sidebar Home navigation and reset behavior

Show the job search dashboard only when Home is selected; other sidebar
items show a placeholder panel. Selecting Home clears the search field
and listings until the user searches again, scrolls results to the top,
and re-tapping Home while already selected repeats that reset.

Co-authored-by: Cursor <cursoragent@cursor.com>

App for Indeed/Views/DashboardView.swift

@@ -53,6 +53,10 @@ final class DashboardView: NSView, NSTextFieldDelegate {
     /// Flipped so short result lists stay visually under the search bar instead of leaving a gap above the cards.
     private let jobListingsContainer = JobListingsDocumentView()
     private let jobListingsStack = NSStackView()
+    /// Shown when a sidebar item other than Home is selected.
+    private let nonHomeHost = NSView()
+    private let nonHomeTitleLabel = NSTextField(labelWithString: "")
+    private let nonHomeSubtitleLabel = NSTextField(wrappingLabelWithString: "")
 
     private var currentSidebarItems: [SidebarItem] = []
     private var selectedSidebarIndex: Int = 0
@@ -87,6 +91,7 @@ final class DashboardView: NSView, NSTextFieldDelegate {
         configureSidebar()
         catalogJobListings = data.jobListings
         configureJobListings([], noResultsForQuery: nil)
+        updateMainContentVisibility()
     }
 
     private func setupLayout() {
@@ -126,6 +131,8 @@ final class DashboardView: NSView, NSTextFieldDelegate {
         mainHost.setContentHuggingPriority(.defaultLow, for: .horizontal)
 
         mainHost.addSubview(mainOverlay)
+        configureNonHomePlaceholder()
+        mainHost.addSubview(nonHomeHost)
 
         mainOverlay.orientation = .vertical
         mainOverlay.spacing = 0
@@ -219,6 +226,11 @@ final class DashboardView: NSView, NSTextFieldDelegate {
             mainOverlay.topAnchor.constraint(equalTo: mainHost.topAnchor),
             mainOverlay.bottomAnchor.constraint(equalTo: mainHost.bottomAnchor, constant: -24),
 
+            nonHomeHost.leadingAnchor.constraint(equalTo: mainHost.leadingAnchor),
+            nonHomeHost.trailingAnchor.constraint(equalTo: mainHost.trailingAnchor),
+            nonHomeHost.topAnchor.constraint(equalTo: mainHost.topAnchor),
+            nonHomeHost.bottomAnchor.constraint(equalTo: mainHost.bottomAnchor, constant: -24),
+
             searchBarShadowHost.widthAnchor.constraint(equalTo: mainOverlay.widthAnchor, multiplier: 0.92),
             jobListingsScrollView.widthAnchor.constraint(equalTo: mainOverlay.widthAnchor, multiplier: 0.92),
 
@@ -485,6 +497,62 @@ final class DashboardView: NSView, NSTextFieldDelegate {
         )
     }
 
+    private func configureNonHomePlaceholder() {
+        nonHomeHost.translatesAutoresizingMaskIntoConstraints = false
+        nonHomeHost.wantsLayer = true
+        nonHomeHost.layer?.backgroundColor = Theme.mainHostBackground.cgColor
+        nonHomeHost.isHidden = true
+
+        nonHomeTitleLabel.font = .systemFont(ofSize: 22, weight: .bold)
+        nonHomeTitleLabel.textColor = Theme.primaryText
+        nonHomeTitleLabel.alignment = .center
+        nonHomeTitleLabel.maximumNumberOfLines = 1
+
+        nonHomeSubtitleLabel.font = .systemFont(ofSize: 14, weight: .regular)
+        nonHomeSubtitleLabel.textColor = Theme.secondaryText
+        nonHomeSubtitleLabel.alignment = .center
+        nonHomeSubtitleLabel.maximumNumberOfLines = 0
+        nonHomeSubtitleLabel.stringValue = "This area is not available in the preview build. Use Home to search jobs."
+
+        let stack = NSStackView(views: [nonHomeTitleLabel, nonHomeSubtitleLabel])
+        stack.orientation = .vertical
+        stack.spacing = 10
+        stack.alignment = .centerX
+        stack.translatesAutoresizingMaskIntoConstraints = false
+        nonHomeHost.addSubview(stack)
+        NSLayoutConstraint.activate([
+            stack.centerXAnchor.constraint(equalTo: nonHomeHost.centerXAnchor),
+            stack.centerYAnchor.constraint(equalTo: nonHomeHost.centerYAnchor),
+            stack.leadingAnchor.constraint(greaterThanOrEqualTo: nonHomeHost.leadingAnchor, constant: 32),
+            stack.trailingAnchor.constraint(lessThanOrEqualTo: nonHomeHost.trailingAnchor, constant: -32),
+            nonHomeSubtitleLabel.widthAnchor.constraint(lessThanOrEqualToConstant: 420)
+        ])
+    }
+
+    private func isHomeSidebarIndex(_ index: Int) -> Bool {
+        guard index >= 0, index < currentSidebarItems.count else { return false }
+        return currentSidebarItems[index].title == "Home"
+    }
+
+    private func updateMainContentVisibility() {
+        let home = isHomeSidebarIndex(selectedSidebarIndex)
+        mainOverlay.isHidden = !home
+        nonHomeHost.isHidden = home
+        if !home, selectedSidebarIndex < currentSidebarItems.count {
+            nonHomeTitleLabel.stringValue = currentSidebarItems[selectedSidebarIndex].title
+        }
+    }
+
+    /// Restores the main job-search experience: cleared query and no listings until the user searches again.
+    private func applyHomeState() {
+        jobKeywordsField.stringValue = ""
+        configureJobListings([], noResultsForQuery: nil)
+        window?.makeFirstResponder(nil)
+        if let doc = jobListingsScrollView.documentView {
+            doc.scroll(NSPoint(x: 0, y: 0))
+        }
+    }
+
     private func updateSearchBarShadowPath() {
         guard searchBarShadowHost.bounds.width > 0, searchBarShadowHost.bounds.height > 0 else { return }
         let r = searchBarShadowHost.bounds
@@ -726,9 +794,20 @@ final class DashboardView: NSView, NSTextFieldDelegate {
     }
 
     private func selectSidebarItem(at index: Int) {
-        guard index >= 0, index < currentSidebarItems.count, index != selectedSidebarIndex else { return }
+        guard index >= 0, index < currentSidebarItems.count else { return }
+        let selectingHome = isHomeSidebarIndex(index)
+        if index == selectedSidebarIndex {
+            if selectingHome {
+                applyHomeState()
+            }
+            return
+        }
         selectedSidebarIndex = index
         configureSidebar()
+        updateMainContentVisibility()
+        if selectingHome {
+            applyHomeState()
+        }
     }
 
 }