feat(danklauncher): add launcher history (#2086)

* remember last search query

* add launcherLastQuery SessionSpec

* add rememberLastQuery option

* Add remember last query for appdrawer

* Add query history sessiondata

* Complete and cleanup

* Discard changes to quickshell/Modules/Settings/LauncherTab.qml

* Cleanup logic

* Add rememberLastQuery option

* Add rememberLastQuery option description

* Move setLauncherLastQuery above validation

* Fix logic bug with empty query

quickshell/Modals/DankLauncherV2/Controller.qml

@@ -39,11 +39,14 @@ Item {
     signal itemExecuted
     signal searchCompleted
     signal modeChanged(string mode)
+    signal queryChanged(string query)
     signal viewModeChanged(string sectionId, string mode)
     signal searchQueryRequested(string query)
 
     onActiveChanged: {
         if (!active) {
+            SessionData.addLauncherHistory(searchQuery);
+
             sections = [];
             flatModel = [];
             selectedItem = null;
@@ -175,6 +178,33 @@ Item {
         }
     ]
 
+    property int historyIndex: -1
+    property string typingBackup: ""
+
+    function navigateHistory(direction) {
+        let history = SessionData.launcherQueryHistory;
+        if (history.length === 0)
+            return;
+
+        if (historyIndex === -1)
+            typingBackup = searchQuery;
+
+        let nextIndex = historyIndex + (direction === "up" ? 1 : -1);
+        if (nextIndex >= history.length)
+            nextIndex = history.length - 1;
+        if (nextIndex < -1)
+            nextIndex = -1;
+
+        if (nextIndex === historyIndex)
+            return;
+        historyIndex = nextIndex;
+
+        let targetText = (historyIndex === -1) ? typingBackup : history[historyIndex];
+
+        setSearchQuery(targetText);
+        searchQueryRequested(targetText);
+    }
+
     property string fileSearchType: "all"
     property string fileSearchExt: ""
     property string fileSearchFolder: ""
@@ -496,6 +526,8 @@ Item {
     }
 
     function performSearch() {
+        queryChanged(searchQuery);
+
         var currentVersion = _searchVersion;
         isSearching = true;
         var shouldResetSelection = _queryDrivenSearch;
@@ -1654,6 +1686,9 @@ Item {
     function executeItem(item) {
         if (!item)
             return;
+
+        SessionData.addLauncherHistory(searchQuery);
+
         if (item.type === "plugin_browse") {
             var browsePluginId = item.data?.pluginId;
             if (!browsePluginId)

quickshell/Modals/DankLauncherV2/DankLauncherV2Modal.qml

@@ -97,8 +97,16 @@ Item {
         contentVisible = true;
         spotlightContent.searchField.forceActiveFocus();
 
+        var targetQuery = "";
+
+        if (query) {
+            targetQuery = query;
+        } else if (SettingsData.rememberLastQuery) {
+            targetQuery = SessionData.launcherLastQuery || "";
+        }
+
         if (spotlightContent.searchField) {
-            spotlightContent.searchField.text = query;
+            spotlightContent.searchField.text = targetQuery;
         }
         if (spotlightContent.controller) {
             var targetMode = mode || SessionData.launcherLastMode || "all";
@@ -113,12 +121,10 @@ Item {
             spotlightContent.controller.collapsedSections = {};
             spotlightContent.controller.selectedFlatIndex = 0;
             spotlightContent.controller.selectedItem = null;
-            if (query) {
-                spotlightContent.controller.setSearchQuery(query);
-            } else {
-                spotlightContent.controller.searchQuery = "";
-                spotlightContent.controller.performSearch();
-            }
+            spotlightContent.controller.historyIndex = -1;
+            spotlightContent.controller.searchQuery = targetQuery;
+
+            spotlightContent.controller.performSearch();
         }
         if (spotlightContent.resetScroll) {
             spotlightContent.resetScroll();
@@ -231,6 +237,7 @@ Item {
 
     Connections {
         target: spotlightContent?.controller ?? null
+
         function onModeChanged(mode) {
             if (spotlightContent.controller.autoSwitchedToFiles)
                 return;

quickshell/Modals/DankLauncherV2/LauncherContent.qml

@@ -149,10 +149,18 @@ FocusScope {
             event.accepted = false;
             return;
         case Qt.Key_Down:
-            controller.selectNext();
+            if (hasCtrl) {
+                controller.navigateHistory("down");
+            } else {
+                controller.selectNext();
+            }
             return;
         case Qt.Key_Up:
-            controller.selectPrevious();
+            if (hasCtrl) {
+                controller.navigateHistory("up");
+            } else {
+                controller.selectPrevious();
+            }
             return;
         case Qt.Key_PageDown:
             controller.selectPageDown(8);
@@ -763,6 +771,7 @@ FocusScope {
         }
         function onSearchQueryRequested(query) {
             searchField.text = query;
+            searchField.cursorPosition = query.length;
         }
         function onModeChanged() {
             extFilterField.text = "";