Added command history groups, set them with /WINDOW HISTORY. Patch by peder@ifi.uio.no

git-svn-id: http://svn.irssi.org/repos/irssi/trunk@2276 dbcabf3a-b0e7-0310-adc4-f8d773084564

8 files changed, 226 insertions, 71 deletions

diff --git a/src/fe-common/core/command-history.c b/src/fe-common/core/command-history.c
index cdf4b5a5..1642c798 100644
--- a/src/fe-common/core/command-history.c
+++ b/src/fe-common/core/command-history.c
@@ -27,119 +27,215 @@
 #include "fe-windows.h"
 #include "window-items.h"
 
+#include "command-history.h"
+
 /* command history */
-static GList *history, *history_pos;
-static int history_lines, history_over_counter;
+static HISTORY_REC *global_history;
 static int window_history;
+static GSList *histories;
 
-void command_history_add(WINDOW_REC *window, const char *text)
+void command_history_add(HISTORY_REC *history, const char *text)
 {
-	GList **phistory, *link;
-	int *phistory_lines;
+	GList *link;
 
+	g_return_if_fail(history != NULL);
 	g_return_if_fail(text != NULL);
 
-	if (window_history) {
-		/* window specific command history */
-		phistory = &window->history;
-		phistory_lines = &window->history_lines;
-	} else {
-		/* global command history */
-		phistory = &history;
-		phistory_lines = &history_lines;
-	}
-
-	if (settings_get_int("max_command_history") < 1 || *phistory_lines < settings_get_int("max_command_history"))
-		(*phistory_lines)++;
+	if (settings_get_int("max_command_history") < 1 || 
+	    history->lines < settings_get_int("max_command_history"))
+		history->lines++;
 	else {
-		link = *phistory;
+		link = history->list;
 		g_free(link->data);
-		*phistory = g_list_remove_link(*phistory, link);
+		history->list = g_list_remove_link(history->list, link);
 		g_list_free_1(link);
 	}
 
-	*phistory = g_list_append(*phistory, g_strdup(text));
+	history->list = g_list_append(history->list, g_strdup(text));
 }
 
-const char *command_history_prev(WINDOW_REC *window, const char *text)
+HISTORY_REC *command_history_find(HISTORY_REC *history)
 {
-	GList *pos, **phistory_pos;
-        int *phistory_over_counter;
+	GSList *tmp;
+	tmp = g_slist_find(histories, history);
 
-	if (window_history) {
-		phistory_pos = &window->history_pos;
-		phistory_over_counter = &window->history_over_counter;
-	} else {
-		phistory_pos = &history_pos;
-		phistory_over_counter = &history_over_counter;
+	if (tmp == NULL)
+		return NULL;
+	else
+		return tmp->data;
+}
+
+HISTORY_REC *command_history_find_name(const char *name)
+{
+	GSList *tmp;
+
+	if (name == NULL)
+		return NULL;
+
+	for (tmp = histories; tmp != NULL; tmp = tmp->next) {
+		HISTORY_REC *rec = tmp->data;
+		
+		if (rec->name != NULL && g_strcasecmp(rec->name, name) == 0)
+			return rec;
 	}
+	
+	return NULL;
+}
+
+HISTORY_REC *command_history_current(WINDOW_REC *window)
+{
+	HISTORY_REC *rec;
 
-	pos = *phistory_pos;
-	if (*phistory_pos != NULL) {
-		*phistory_pos = (*phistory_pos)->prev;
-		if (*phistory_pos == NULL)
-                        (*phistory_over_counter)++;
+	if (window == NULL)
+		return global_history;
+
+	if (window_history)
+		return window->history;
+
+	rec = command_history_find_name(window->history_name);
+	if (rec != NULL)
+		return rec;
+
+	return global_history;
+}
+
+const char *command_history_prev(WINDOW_REC *window, const char *text)
+{
+	HISTORY_REC *history;
+	GList *pos;
+
+	history = command_history_current(window);
+	pos = history->pos;
+
+	if (pos != NULL) {
+		history->pos = history->pos->prev;
+		if (history->pos == NULL)
+                        history->over_counter++;
 	} else {
-		*phistory_pos = g_list_last(window_history ?
-					    window->history : history);
+		history->pos = g_list_last(history->list);
 	}
 
 	if (*text != '\0' &&
 	    (pos == NULL || strcmp(pos->data, text) != 0)) {
 		/* save the old entry to history */
-		command_history_add(window, text);
+		command_history_add(history, text);
 	}
 
-	return *phistory_pos == NULL ? "" : (*phistory_pos)->data;
+	return history->pos == NULL ? "" : history->pos->data;
 }
 
 const char *command_history_next(WINDOW_REC *window, const char *text)
 {
-	GList *pos, **phistory_pos;
-        int *phistory_over_counter;
+	HISTORY_REC *history;
+	GList *pos;
 
-	if (window_history) {
-		phistory_pos = &window->history_pos;
-		phistory_over_counter = &window->history_over_counter;
-	} else {
-		phistory_pos = &history_pos;
-		phistory_over_counter = &history_over_counter;
-	}
-
-	pos = *phistory_pos;
+	history = command_history_current(window);
+	pos = history->pos; 
 
 	if (pos != NULL)
-		*phistory_pos = (*phistory_pos)->next;
-	else if (*phistory_over_counter > 0) {
-		(*phistory_over_counter)--;
-		*phistory_pos = window_history ? window->history : history;
+		history->pos = history->pos->next;
+	else if (history->over_counter > 0) {
+		history->over_counter--;
+		history->pos = history->list;
 	}
 
 	if (*text != '\0' &&
 	    (pos == NULL || strcmp(pos->data, text) != 0)) {
 		/* save the old entry to history */
-		command_history_add(window, text);
+		command_history_add(history, text);
 	}
-	return *phistory_pos == NULL ? "" : (*phistory_pos)->data;
+	return history->pos == NULL ? "" : history->pos->data;
+}
+
+void command_history_clear_pos_func(HISTORY_REC *history, gpointer user_data)
+{
+	history->over_counter = 0;
+	history->pos = NULL;
 }
 
 void command_history_clear_pos(WINDOW_REC *window)
 {
-	window->history_over_counter = 0;
-	window->history_pos = NULL;
-        history_over_counter = 0;
-	history_pos = NULL;
+	g_slist_foreach(histories, 
+		       (GFunc) command_history_clear_pos_func, NULL);
+}
+
+HISTORY_REC *command_history_create(const char *name)
+{
+	HISTORY_REC *rec;
+	
+	rec = g_new0(HISTORY_REC, 1);
+	
+	if (name != NULL)
+		rec->name = g_strdup(name);
+
+	histories = g_slist_append(histories, rec);
+	
+	return rec;
+}
+
+void command_history_destroy(HISTORY_REC *history)
+{
+	g_return_if_fail(history != NULL);
+
+	/* history->refcount should be 0 here, or somthing is wrong... */
+	g_return_if_fail(history->refcount == 0);
+
+	histories = g_slist_remove(histories, history);
+
+	g_list_foreach(history->list, (GFunc) g_free, NULL);
+	g_list_free(history->list);
+
+	g_free_not_null(history->name);
+	g_free(history);
+}
+
+void command_history_link(const char *name)
+{
+	HISTORY_REC *rec;
+	rec = command_history_find_name(name);
+
+	if (rec == NULL)
+		rec = command_history_create(name);
+
+	rec->refcount++;
+}
+
+void command_history_unlink(const char *name)
+{
+	HISTORY_REC *rec;
+	rec = command_history_find_name(name);
+
+	if (rec == NULL)
+		return;
+
+	if (--(rec->refcount) <= 0)
+		command_history_destroy(rec);
+}
+
+static void sig_window_created(WINDOW_REC *window, int automatic)
+{
+	window->history = command_history_create(NULL);
 }
 
 static void sig_window_destroyed(WINDOW_REC *window)
 {
-	g_list_foreach(window->history, (GFunc) g_free, NULL);
-	g_list_free(window->history);
+	command_history_unlink(window->history_name);
+	command_history_destroy(window->history);
+
+	g_free_not_null(window->history_name);
+	g_free_not_null(window->history);
+}
+
+static void sig_window_history_changed(WINDOW_REC *window, const char *oldname)
+{
+	command_history_link(window->history_name);
+	command_history_unlink(oldname);
 }
 
 static char *special_history_func(const char *text, void *item, int *free_ret)
 {
 	WINDOW_REC *window;
+	HISTORY_REC *history;
 	GList *tmp;
         char *findtext, *ret;
 
@@ -148,8 +244,8 @@ static char *special_history_func(const char *text, void *item, int *free_ret)
 	findtext = g_strdup_printf("*%s*", text);
 	ret = NULL;
 
-	tmp = window_history ? window->history : history;
-	for (; tmp != NULL; tmp = tmp->next) {
+	history = command_history_current(window);
+	for (tmp = history->list; tmp != NULL; tmp = tmp->next) {
 		const char *line = tmp->data;
 
 		if (match_wildcards(findtext, line)) {
@@ -174,19 +270,21 @@ void command_history_init(void)
 
 	special_history_func_set(special_history_func);
 
-	history_lines = 0; history_over_counter = 0;
-	history = NULL; history_pos = NULL;
+	global_history = command_history_create(NULL);
 
 	read_settings();
+	signal_add("window created", (SIGNAL_FUNC) sig_window_created);
 	signal_add("window destroyed", (SIGNAL_FUNC) sig_window_destroyed);
+	signal_add("window history changed", (SIGNAL_FUNC) sig_window_history_changed);
 	signal_add("setup changed", (SIGNAL_FUNC) read_settings);
 }
 
 void command_history_deinit(void)
 {
+	signal_remove("window created", (SIGNAL_FUNC) sig_window_created);
 	signal_remove("window destroyed", (SIGNAL_FUNC) sig_window_destroyed);
+	signal_remove("window history changed", (SIGNAL_FUNC) sig_window_history_changed);
 	signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
 
-	g_list_foreach(history, (GFunc) g_free, NULL);
-	g_list_free(history);
+	command_history_destroy(global_history);
 }
diff --git a/src/fe-common/core/command-history.h b/src/fe-common/core/command-history.h
index 9f37f069..2ca312e1 100644
--- a/src/fe-common/core/command-history.h
+++ b/src/fe-common/core/command-history.h
@@ -1,16 +1,35 @@
 #ifndef __COMMAND_HISTORY_H
 #define __COMMAND_HISTORY_H
 
-#include "fe-windows.h"
+#include "common.h"
+
+typedef struct {
+	char *name;
+
+	GList *list, *pos;
+	int lines, over_counter;
+
+	int refcount;
+} HISTORY_REC;
+
+HISTORY_REC *command_history_find(HISTORY_REC *history);
+HISTORY_REC *command_history_find_name(const char *name);
+
+HISTORY_REC *command_history_current(WINDOW_REC *window);
 
 void command_history_init(void);
 void command_history_deinit(void);
 
-void command_history_add(WINDOW_REC *window, const char *text, int prepend);
+void command_history_add(HISTORY_REC *window, const char *text);
 
 const char *command_history_prev(WINDOW_REC *window, const char *text);
 const char *command_history_next(WINDOW_REC *window, const char *text);
 
 void command_history_clear_pos(WINDOW_REC *window);
 
+HISTORY_REC *command_history_create(const char *name);
+void command_history_destroy(HISTORY_REC *history);
+void command_history_link(const char *name);
+void command_history_unlink(const char *name);
+
 #endif
diff --git a/src/fe-common/core/fe-windows.c b/src/fe-common/core/fe-windows.c
index 5eb19314..53ff7a02 100644
--- a/src/fe-common/core/fe-windows.c
+++ b/src/fe-common/core/fe-windows.c
@@ -195,6 +195,21 @@ void window_set_name(WINDOW_REC *window, const char *name)
 	signal_emit("window name changed", 1, window);
 }
 
+void window_set_history(WINDOW_REC *window, const char *name)
+{
+	char *oldname;
+	oldname = window->history_name;
+
+	if (*name == '\0')
+		window->history_name = NULL;
+	else
+		window->history_name = g_strdup(name);
+
+	signal_emit("window history changed", 1, window, oldname);
+
+	g_free_not_null(oldname);
+}
+
 void window_set_level(WINDOW_REC *window, int level)
 {
 	g_return_if_fail(window != NULL);
diff --git a/src/fe-common/core/fe-windows.h b/src/fe-common/core/fe-windows.h
index 909cd1bc..32004459 100644
--- a/src/fe-common/core/fe-windows.h
+++ b/src/fe-common/core/fe-windows.h
@@ -2,6 +2,7 @@
 #define __WINDOWS_H
 
 #include "window-item-def.h"
+#include "command-history.h"
 
 enum {
         DATA_LEVEL_NONE = 0,
@@ -34,8 +35,8 @@ struct _WINDOW_REC {
 	unsigned int destroying:1;
 
 	/* window-specific command line history */
-	GList *history, *history_pos;
-	int history_lines, history_over_counter;
+	HISTORY_REC *history;
+	char *history_name;
 
 	int data_level; /* current data level */
 	char *hilight_color; /* current hilight color in %format */
@@ -62,6 +63,7 @@ void window_change_server(WINDOW_REC *window, void *server);
 
 void window_set_refnum(WINDOW_REC *window, int refnum);
 void window_set_name(WINDOW_REC *window, const char *name);
+void window_set_history(WINDOW_REC *window, const char *name);
 void window_set_level(WINDOW_REC *window, int level);
 
 /* return active item's name, or if none is active, window's name */
diff --git a/src/fe-common/core/module-formats.c b/src/fe-common/core/module-formats.c
index 79fd7bdc..2a5c8f93 100644
--- a/src/fe-common/core/module-formats.c
+++ b/src/fe-common/core/module-formats.c
@@ -49,6 +49,7 @@ FORMAT_REC fecommon_core_formats[] = {
 	{ "window_info_refnum", "Window  : {hilight #$0}", 1, { 1 } },
 	{ "window_info_refnum_sticky", "Window  : {hilight #$0 (sticky)}", 1, { 1 } },
 	{ "window_info_name", "Name    : $0", 1, { 0 } },
+	{ "window_info_history", "History : $0", 1, { 0 } },
 	{ "window_info_size", "Size    : $0x$1", 2, { 1, 1 } },
 	{ "window_info_level", "Level   : $0", 1, { 0 } },
 	{ "window_info_server", "Server  : $0", 1, { 0 } },
diff --git a/src/fe-common/core/module-formats.h b/src/fe-common/core/module-formats.h
index e5e7d99b..fcfd87d5 100644
--- a/src/fe-common/core/module-formats.h
+++ b/src/fe-common/core/module-formats.h
@@ -27,6 +27,7 @@ enum {
 	TXT_WINDOW_INFO_REFNUM,
 	TXT_WINDOW_INFO_REFNUM_STICKY,
 	TXT_WINDOW_INFO_NAME,
+	TXT_WINDOW_INFO_HISTORY,
 	TXT_WINDOW_INFO_SIZE,
 	TXT_WINDOW_INFO_LEVEL,
         TXT_WINDOW_INFO_SERVER,
diff --git a/src/fe-common/core/window-commands.c b/src/fe-common/core/window-commands.c
index 34cd3099..e388f23b 100644
--- a/src/fe-common/core/window-commands.c
+++ b/src/fe-common/core/window-commands.c
@@ -94,6 +94,12 @@ static void cmd_window_info(WINDOW_REC *win)
 				   TXT_WINDOW_INFO_NAME, win->name);
 	}
 
+	/* Window history name */
+	if (win->history_name != NULL) {
+		printformat_window(win, MSGLEVEL_CLIENTCRAP,
+				   TXT_WINDOW_INFO_HISTORY, win->history_name);
+	}
+
         /* Window width / height */
 	printformat_window(win, MSGLEVEL_CLIENTCRAP, TXT_WINDOW_INFO_SIZE,
 			   win->width, win->height);
@@ -468,6 +474,12 @@ static void cmd_window_name(const char *data)
 	}
 }
 
+/* SYNTAX: WINDOW HISTORY <name> */
+void cmd_window_history(const char *data)
+{
+	window_set_history(active_win, data);
+}
+
 /* we're moving the first window to last - move the first contiguous block
    of refnums to left. Like if there's windows 1..5 and 7..10, move 1 to
    11, 2..5 to 1..4 and leave 7..10 alone */
@@ -692,6 +704,7 @@ void window_commands_init(void)
 	command_bind("window item move", NULL, (SIGNAL_FUNC) cmd_window_item_move);
 	command_bind("window number", NULL, (SIGNAL_FUNC) cmd_window_number);
 	command_bind("window name", NULL, (SIGNAL_FUNC) cmd_window_name);
+	command_bind("window history", NULL, (SIGNAL_FUNC) cmd_window_history);
 	command_bind("window move", NULL, (SIGNAL_FUNC) cmd_window_move);
 	command_bind("window move prev", NULL, (SIGNAL_FUNC) cmd_window_move_prev);
 	command_bind("window move next", NULL, (SIGNAL_FUNC) cmd_window_move_next);
@@ -729,6 +742,7 @@ void window_commands_deinit(void)
 	command_unbind("window item move", (SIGNAL_FUNC) cmd_window_item_move);
 	command_unbind("window number", (SIGNAL_FUNC) cmd_window_number);
 	command_unbind("window name", (SIGNAL_FUNC) cmd_window_name);
+	command_unbind("window history", (SIGNAL_FUNC) cmd_window_history);
 	command_unbind("window move", (SIGNAL_FUNC) cmd_window_move);
 	command_unbind("window move prev", (SIGNAL_FUNC) cmd_window_move_prev);
 	command_unbind("window move next", (SIGNAL_FUNC) cmd_window_move_next);
diff --git a/src/fe-common/core/windows-layout.c b/src/fe-common/core/windows-layout.c
index 060fb7a0..9615006e 100644
--- a/src/fe-common/core/windows-layout.c
+++ b/src/fe-common/core/windows-layout.c
@@ -116,6 +116,7 @@ static void sig_layout_restore(void)
 		window_set_refnum(window, atoi(node->key));
                 window->sticky_refnum = config_node_get_bool(node, "sticky_refnum", FALSE);
 		window_set_name(window, config_node_get_str(node, "name", NULL));
+		window_set_history(window, config_node_get_str(node, "history_name", NULL));
 		window_set_level(window, level2bits(config_node_get_str(node, "level", "")));
 
 		window->servertag = g_strdup(config_node_get_str(node, "servertag", NULL));
@@ -170,6 +171,10 @@ static void window_save(WINDOW_REC *window, CONFIG_NODE *node)
 
 	if (window->name != NULL)
 		iconfig_node_set_str(node, "name", window->name);
+
+	if (window->history_name != NULL)
+		iconfig_node_set_str(node, "history_name", window->history_name);
+
 	if (window->servertag != NULL)
 		iconfig_node_set_str(node, "servertag", window->servertag);
 	if (window->level != 0) {