Last 20 search strings(including filenames) are saved/loaded to/from config automatically.

Author: young-developer

NppNavigateTo/Forms/FrmNavigateTo.cs

@@ -101,12 +101,69 @@ public FrmNavigateTo(IScintillaGateway editor, INotepadPPGateway notepad)
             lastKeyPressTimer.Tick += OnSearchTimerTick;
             nonFuzzyFilterFunc = null;
             InitializeComponent();
+            LoadSearchHistory();
             ReloadFileList();
             this.notepad.ReloadMenuItems();
             FormStyle.ApplyStyle(this, true, notepad.IsDarkModeEnabled());
             FilterDataGrid("");
         }
 
+        private void LoadSearchHistory()
+        {
+            try
+            {
+                string hist = FrmSettings.Settings.GetSetting(Settings.searchHistory);
+                if (!string.IsNullOrEmpty(hist))
+                {
+                    // items are stored as a pipe-separated list
+                    var items = hist.Split(new[] {'|'}, StringSplitOptions.RemoveEmptyEntries);
+                    // insert in order so most recent is first
+                    foreach (var it in items)
+                    {
+                        if (!searchComboBox.Items.Contains(it))
+                            searchComboBox.Items.Add(it);
+                    }
+                }
+            }
+            catch(Exception ex)
+            {
+                MessageBox.Show(ex.ToString(),
+                    @"Could not load search history",
+                    MessageBoxButtons.OK,
+                    MessageBoxIcon.Error);
+            }
+        }
+
+        public void SaveSearchHistory()
+        {
+            try
+            {
+                // store up to 20 entries to keep INI small
+                int max = 20;
+                var list = new List<string>();
+                foreach (var o in searchComboBox.Items)
+                {
+                    if (o == null) continue;
+                    string s = o.ToString();
+                    if (string.IsNullOrWhiteSpace(s)) continue;
+                    if (!list.Contains(s)) list.Add(s);
+                    if (list.Count >= max) break;
+                }
+                // serialize as pipe-separated
+                string serial = string.Join("|", list);
+                FrmSettings.Settings.SetSetting(Settings.searchHistory, serial);
+                FrmSettings.Settings.SetIntSetting(Settings.searchHistoryLength, serial.Length);
+            }
+            catch(Exception ex)
+            {
+                MessageBox.Show(ex.ToString(),
+                    @"Could not save search history",
+                    MessageBoxButtons.OK,
+                    MessageBoxIcon.Error);
+            }
+        }
+
+
         /// <summary>
         /// reload the list of files that are currently open in Notepad++
         /// </summary>
@@ -710,11 +767,19 @@ private void dataGridView1_MouseDoubleClick(object sender, MouseEventArgs e)
 
         private void SwitchToFile(string path, bool isTab = true)
         {
-            notepad.SwitchToFile(path, isTab);
-            HideWindow(!FrmSettings.Settings.GetBoolSetting(Settings.keepDlgOpen));
             string fileName = Path.GetFileName(notepad.GetCurrentFilePath());
             searchComboBox.Items.Remove(fileName);
             searchComboBox.Items.Insert(0, fileName);
+            string currentSearchString = searchComboBox.Text;
+            // save also search string
+            if (!String.IsNullOrEmpty(currentSearchString))
+            {
+                searchComboBox.Items.Remove(currentSearchString);
+                searchComboBox.Items.Insert(0, currentSearchString);
+            }
+
+            notepad.SwitchToFile(path, isTab);
+            HideWindow(!FrmSettings.Settings.GetBoolSetting(Settings.keepDlgOpen));
         }
 
         private void HideWindow(bool disabled = true)

NppNavigateTo/NppNavigateTo.cs

@@ -47,6 +47,7 @@ public static void OnNotification(ScNotification notification)
                     NavigateTo.Plugin.Namespace.Main.NavigateToDlg();
                     break;
                 case (uint)NppMsg.NPPN_BEFORESHUTDOWN:
+                    NavigateTo.Plugin.Namespace.Main.frmNavigateTo.SaveSearchHistory();
                     NavigateTo.Plugin.Namespace.Main.isShuttingDown = true;
                     break;
                 case (uint)NppMsg.NPPN_FILEOPENED:

NppNavigateTo/Settings.cs

@@ -36,6 +36,8 @@ internal class Settings
         public static string secondsBetweenDirectoryScans = "secondsBetweenDirectoryScans";
         public static string maxResultsHighlightingEnabled = "maxResultsHighlightingEnabled";
         public static string searchDelayMs = "searchDelayMs";
+        public static string searchHistory = "searchHistory";
+        public static string searchHistoryLength = "searchHistoryLength";
 
         static string iniFilePath;
         static string lpAppName = "NavigateTo";
@@ -155,6 +157,20 @@ public void LoadConfigValues()
                 Win32.GetPrivateProfileInt(lpAppName, maxResultsHighlightingEnabled, 5000, iniFilePath));
             LoadIntSetting(searchDelayMs,
                 Win32.GetPrivateProfileInt(lpAppName, searchDelayMs, 300, iniFilePath));
+            try
+            {
+                LoadIntSetting(searchHistoryLength,
+                    Win32.GetPrivateProfileInt(lpAppName, searchHistoryLength, 5000, iniFilePath));
+                int size = GetIntSetting(searchHistoryLength) + 1;
+                StringBuilder shStringBuilder = new StringBuilder(size);
+                Win32.GetPrivateProfileString(lpAppName, searchHistory, "", shStringBuilder, size, iniFilePath);
+                LoadSetting(searchHistory, shStringBuilder.ToString());
+            }
+            catch(Exception ex)
+            {
+                SetIntSetting(searchHistoryLength, 5000);
+                SetSetting(searchHistory, "");
+            }
             // TODO: add customizable font size; changing font is tricky, so am not doing yet
             //LoadIntSetting(fontSize,
             //    Win32.GetPrivateProfileInt(lpAppName, fontSize, 8, iniFilePath));