From b82048eb18e666156546b4a3811b9fad4b46d5ed Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Tue, 23 Jun 2026 08:20:15 +0000
Subject: [PATCH] Add c key to clear filter.

---
 mode-tree.c | 15 +++++++++++++++
 tmux.1      |  4 ++++
 2 files changed, 19 insertions(+)

diff --git a/mode-tree.c b/mode-tree.c
index ff31edb47..88552a7d0 100644
--- a/mode-tree.c
+++ b/mode-tree.c
@@ -1113,6 +1113,17 @@ mode_tree_filter_free(void *data)
 	mode_tree_remove_ref(data);
 }
 
+static void
+mode_tree_clear_filter(struct mode_tree_data *mtd)
+{
+	free(mtd->filter);
+	mtd->filter = NULL;
+
+	mode_tree_build(mtd);
+	mode_tree_draw(mtd);
+	mtd->wp->flags |= PANE_REDRAW;
+}
+
 static void
 mode_tree_menu_callback(__unused struct menu *menu, __unused u_int idx,
     key_code key, void *data)
@@ -1476,11 +1487,15 @@ mode_tree_key(struct mode_tree_data *mtd, struct client *c, key_code *key,
 		mode_tree_search_set(mtd);
 		break;
 	case 'f':
+	case 'F':
 		mtd->references++;
 		status_prompt_set(c, NULL, "(filter) ", mtd->filter,
 		    mode_tree_filter_callback, mode_tree_filter_free, mtd,
 		    PROMPT_NOFORMAT, PROMPT_TYPE_SEARCH);
 		break;
+	case 'c':
+		mode_tree_clear_filter(mtd);
+		break;
 	case 'v':
 		switch (mtd->preview) {
 		case MODE_TREE_PREVIEW_OFF:
diff --git a/tmux.1 b/tmux.1
index da5d126e9..7f1403e73 100644
--- a/tmux.1
+++ b/tmux.1
@@ -2831,6 +2831,7 @@ The following keys may be used in client mode:
 .It Li "z" Ta "Suspend selected client"
 .It Li "Z" Ta "Suspend tagged clients"
 .It Li "f" Ta "Enter a format to filter items"
+.It Li "c" Ta "Clear the current filter"
 .It Li "O" Ta "Change sort order"
 .It Li "r" Ta "Reverse sort order"
 .It Li "v" Ta "Toggle preview"
@@ -2926,6 +2927,7 @@ The following keys may be used in tree mode:
 .It Li "C\-t" Ta "Tag all items"
 .It Li "\&:" Ta "Run a command for each tagged item"
 .It Li "f" Ta "Enter a format to filter items"
+.It Li "c" Ta "Clear the current filter"
 .It Li "H" Ta "Jump to the starting pane"
 .It Li "O" Ta "Change sort order"
 .It Li "r" Ta "Reverse sort order"
@@ -3024,6 +3026,7 @@ The following keys may be used in customize mode:
 .It Li "T" Ta "Tag no items"
 .It Li "C\-t" Ta "Tag all items"
 .It Li "f" Ta "Enter a format to filter items"
+.It Li "c" Ta "Clear the current filter"
 .It Li "v" Ta "Toggle option information"
 .It Li "F1 or C\-h" Ta "Display help"
 .It Li "q" Ta "Exit mode"
@@ -7900,6 +7903,7 @@ The following keys may be used in buffer mode:
 .It Li "D" Ta "Delete tagged buffers"
 .It Li "e" Ta "Open the buffer in an editor"
 .It Li "f" Ta "Enter a format to filter items"
+.It Li "c" Ta "Clear the current filter"
 .It Li "O" Ta "Change sort order"
 .It Li "r" Ta "Reverse sort order"
 .It Li "v" Ta "Toggle preview"