Change so that the appropriate hooks for windows and panes belong to

pane/window options rather than all being session options. This is
useful for example to create a pane that is automatically closed on some
condition. From Anindya Mukherjee.

cmd-set-option.c

@@ -69,10 +69,10 @@ const struct cmd_entry cmd_set_hook_entry = {
 	.name = "set-hook",
 	.alias = NULL,
 
-	.args = { "agRt:u", 1, 2 },
-	.usage = "[-agRu] " CMD_TARGET_SESSION_USAGE " hook [command]",
+	.args = { "agpRt:uw", 1, 2 },
+	.usage = "[-agpRuw] " CMD_TARGET_PANE_USAGE " hook [command]",
 
-	.target = { 't', CMD_FIND_SESSION, CMD_FIND_CANFAIL },
+	.target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_set_option_exec

cmd-show-options.c

@@ -65,10 +65,10 @@ const struct cmd_entry cmd_show_hooks_entry = {
 	.name = "show-hooks",
 	.alias = NULL,
 
-	.args = { "gt:", 0, 1 },
-	.usage = "[-g] " CMD_TARGET_SESSION_USAGE,
+	.args = { "gpt:w", 0, 1 },
+	.usage = "[-gpw] " CMD_TARGET_PANE_USAGE,
 
-	.target = { 't', CMD_FIND_SESSION, 0 },
+	.target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_show_options_exec

notify.c

@@ -76,6 +76,14 @@ notify_insert_hook(struct cmdq_item *item, struct notify_entry *ne)
 	else
 		oo = fs.s->options;
 	o = options_get(oo, ne->name);
+	if (o == NULL && fs.wp != NULL) {
+		oo = fs.wp->options;
+		o = options_get(oo, ne->name);
+	}
+	if (o == NULL && fs.wl != NULL) {
+		oo = fs.wl->window->options;
+		o = options_get(oo, ne->name);
+	}
 	if (o == NULL)
 		return;
 

options-table.c

@@ -140,7 +140,7 @@ static const char *options_table_status_format_default[] = {
 	OPTIONS_TABLE_STATUS_FORMAT1, OPTIONS_TABLE_STATUS_FORMAT2, NULL
 };
 
-/* Helper for hook options. */
+/* Helpers for hook options. */
 #define OPTIONS_TABLE_HOOK(hook_name, default_value) \
 	{ .name = hook_name, \
 	  .type = OPTIONS_TABLE_COMMAND, \
@@ -150,6 +150,24 @@ static const char *options_table_status_format_default[] = {
 	  .separator = "" \
 	}
 
+#define OPTIONS_TABLE_PANE_HOOK(hook_name, default_value) \
+	{ .name = hook_name, \
+	  .type = OPTIONS_TABLE_COMMAND, \
+	  .scope = OPTIONS_TABLE_WINDOW|OPTIONS_TABLE_PANE, \
+	  .flags = OPTIONS_TABLE_IS_ARRAY|OPTIONS_TABLE_IS_HOOK, \
+	  .default_str = default_value,	\
+	  .separator = "" \
+	}
+
+#define OPTIONS_TABLE_WINDOW_HOOK(hook_name, default_value) \
+	{ .name = hook_name, \
+	  .type = OPTIONS_TABLE_COMMAND, \
+	  .scope = OPTIONS_TABLE_WINDOW, \
+	  .flags = OPTIONS_TABLE_IS_ARRAY|OPTIONS_TABLE_IS_HOOK, \
+	  .default_str = default_value,	\
+	  .separator = "" \
+	}
+
 /* Top-level options. */
 const struct options_table_entry options_table[] = {
 	/* Server options. */
@@ -851,21 +869,21 @@ const struct options_table_entry options_table[] = {
 	OPTIONS_TABLE_HOOK("client-detached", ""),
 	OPTIONS_TABLE_HOOK("client-resized", ""),
 	OPTIONS_TABLE_HOOK("client-session-changed", ""),
-	OPTIONS_TABLE_HOOK("pane-died", ""),
-	OPTIONS_TABLE_HOOK("pane-exited", ""),
-	OPTIONS_TABLE_HOOK("pane-focus-in", ""),
-	OPTIONS_TABLE_HOOK("pane-focus-out", ""),
-	OPTIONS_TABLE_HOOK("pane-mode-changed", ""),
-	OPTIONS_TABLE_HOOK("pane-set-clipboard", ""),
+	OPTIONS_TABLE_PANE_HOOK("pane-died", ""),
+	OPTIONS_TABLE_PANE_HOOK("pane-exited", ""),
+	OPTIONS_TABLE_PANE_HOOK("pane-focus-in", ""),
+	OPTIONS_TABLE_PANE_HOOK("pane-focus-out", ""),
+	OPTIONS_TABLE_PANE_HOOK("pane-mode-changed", ""),
+	OPTIONS_TABLE_PANE_HOOK("pane-set-clipboard", ""),
 	OPTIONS_TABLE_HOOK("session-closed", ""),
 	OPTIONS_TABLE_HOOK("session-created", ""),
 	OPTIONS_TABLE_HOOK("session-renamed", ""),
 	OPTIONS_TABLE_HOOK("session-window-changed", ""),
-	OPTIONS_TABLE_HOOK("window-layout-changed", ""),
-	OPTIONS_TABLE_HOOK("window-linked", ""),
-	OPTIONS_TABLE_HOOK("window-pane-changed", ""),
-	OPTIONS_TABLE_HOOK("window-renamed", ""),
-	OPTIONS_TABLE_HOOK("window-unlinked", ""),
+	OPTIONS_TABLE_WINDOW_HOOK("window-layout-changed", ""),
+	OPTIONS_TABLE_WINDOW_HOOK("window-linked", ""),
+	OPTIONS_TABLE_WINDOW_HOOK("window-pane-changed", ""),
+	OPTIONS_TABLE_WINDOW_HOOK("window-renamed", ""),
+	OPTIONS_TABLE_WINDOW_HOOK("window-unlinked", ""),
 
 	{ .name = NULL }
 };

tmux.1

@@ -3897,6 +3897,7 @@ hook and there are a number of hooks not associated with commands.
 .Pp
 Hooks are stored as array options, members of the array are executed in
 order when the hook is triggered.
+Like options different hooks may be global or belong to a session, window or pane.
 Hooks may be configured with the
 .Ic set-hook
 or
@@ -3989,8 +3990,8 @@ Run when a window is unlinked from a session.
 Hooks are managed with these commands:
 .Bl -tag -width Ds
 .It Xo Ic set-hook
-.Op Fl agRu
-.Op Fl t Ar target-session
+.Op Fl agpRuw
+.Op Fl t Ar target-pane
 .Ar hook-name
 .Ar command
 .Xc
@@ -4002,31 +4003,21 @@ unsets) hook
 .Ar hook-name
 to
 .Ar command .
-If
-.Fl g
-is given,
-.Em hook-name
-is added to the global list of hooks, otherwise it is added to the session
-hooks (for
-.Ar target-session
-with
-.Fl t ) .
-.Fl a
-appends to a hook.
-Like options, session hooks inherit from the global ones.
+The flags are the same as for
+.Ic set-option .
 .Pp
 With
 .Fl R ,
 run
 .Ar hook-name
 immediately.
 .It Xo Ic show-hooks
-.Op Fl g
-.Op Fl t Ar target-session
+.Op Fl gpw
+.Op Fl t Ar target-pane
 .Xc
-Shows the global list of hooks with
-.Fl g ,
-otherwise the session hooks.
+Shows hooks.
+The flags are the same as for
+.Ic show-options .
 .El
 .Sh MOUSE SUPPORT
 If the