pane sync start != pane sync select

README.md

@@ -170,7 +170,8 @@ next_tab = "ALT+SHIFT+L"
 open_font_selector = "ALT+T"
 open_scrollback = "ALT+S"
 create_worktree = "ALT+W"
-pane_sync_select = "ALT+Y"
+pane_sync_start = "ALT+Y"
+pane_sync_select = "SPACE"
 pane_sync_commit = "ALT+SHIFT+Y"
 pane_sync_end = "ALT+U"
 paste = "CTRL+SHIFT+V"
@@ -191,7 +192,8 @@ paste = "CTRL+SHIFT+V"
 - `Alt+s`: open the active pane scrollback in `$EDITOR`
 - `Alt+w`: edit a worktree name, then run `git worktree add <relative_worktree_path>/<name>`
   from the previously focused pane's working directory
-- `Alt+y`: enter pane-sync selection mode and toggle the focused pane in the sync set
+- `Alt+y`: enter pane-sync selection mode
+- `Space`: toggle the focused pane in the sync set while pane-sync selection mode is active
 - `Alt+Shift+y`: commit the current pane-sync selection; input typed or pasted into any synced
   pane is mirrored to the other synced panes
 - `Alt+u`: end pane sync

config.example.toml

@@ -41,7 +41,8 @@ next_tab = "ALT+SHIFT+L"
 open_font_selector = "ALT+T"
 open_scrollback = "ALT+S"
 create_worktree = "ALT+W"
-pane_sync_select = "ALT+Y"
+pane_sync_start = "ALT+Y"
+pane_sync_select = "SPACE"
 pane_sync_commit = "ALT+SHIFT+Y"
 pane_sync_end = "ALT+U"
 paste = "CTRL+SHIFT+V"

src/main/java/com/gregor/jprototerm/AppConfig.java

@@ -50,6 +50,7 @@ public record AppConfig(
             "open_font_selector",
             "open_scrollback",
             "create_worktree",
+            "pane_sync_start",
             "pane_sync_select",
             "pane_sync_commit",
             "pane_sync_end",
@@ -119,7 +120,8 @@ public record AppConfig(
                         Map.entry("open_font_selector", KeyBinding.parse("ALT+T")),
                         Map.entry("open_scrollback", KeyBinding.parse("ALT+S")),
                         Map.entry("create_worktree", KeyBinding.parse("ALT+W")),
-                        Map.entry("pane_sync_select", KeyBinding.parse("ALT+Y")),
+                        Map.entry("pane_sync_start", KeyBinding.parse("ALT+Y")),
+                        Map.entry("pane_sync_select", KeyBinding.parse("SPACE")),
                         Map.entry("pane_sync_commit", KeyBinding.parse("ALT+SHIFT+Y")),
                         Map.entry("pane_sync_end", KeyBinding.parse("ALT+U")),
                         Map.entry("paste", KeyBinding.parse("CTRL+SHIFT+V"))

src/main/java/com/gregor/jprototerm/Compositor.java

@@ -144,14 +144,19 @@ public final class Compositor {
         return paneSyncSelectMode;
     }
 
-    public void togglePaneSyncSelection() {
-        TerminalPane active = activePane();
-        if (active == null) {
+    public void startPaneSyncSelection() {
+        if (activePane() == null || paneSyncSelectMode) {
             return;
         }
-        if (!paneSyncSelectMode) {
         paneSyncSelectMode = true;
         paneSyncSelection.clear();
+        layoutVersion++;
+    }
+
+    public void togglePaneSyncSelection() {
+        TerminalPane active = activePane();
+        if (active == null || !paneSyncSelectMode) {
+            return;
         }
         if (!paneSyncSelection.add(active)) {
             paneSyncSelection.remove(active);

src/main/java/com/gregor/jprototerm/TerminalWindow.java

@@ -72,6 +72,7 @@ final class TerminalWindow {
         keyActions.put("open_font_selector", this::openFontSelector);
         keyActions.put("open_scrollback", this::openScrollbackInEditor);
         keyActions.put("create_worktree", this::createWorktreeInEditor);
+        keyActions.put("pane_sync_start", compositor::startPaneSyncSelection);
         keyActions.put("pane_sync_select", compositor::togglePaneSyncSelection);
         keyActions.put("pane_sync_commit", compositor::commitPaneSyncSelection);
         keyActions.put("pane_sync_end", compositor::endPaneSync);
@@ -134,8 +135,12 @@ final class TerminalWindow {
 
     private void handlePressed(KeyEvent event) {
         for (Map.Entry<String, Runnable> action : keyActions.entrySet()) {
-            if (config.keybindings().get(action.getKey()).matches(event)) {
-                if (compositor.isPaneSyncSelecting() && !allowedDuringPaneSyncSelection(action.getKey())) {
+            String actionName = action.getKey();
+            if (config.keybindings().get(actionName).matches(event)) {
+                if (actionName.equals("pane_sync_select") && !compositor.isPaneSyncSelecting()) {
+                    continue;
+                }
+                if (compositor.isPaneSyncSelecting() && !allowedDuringPaneSyncSelection(actionName)) {
                     event.consume();
                     return;
                 }