From 1b1f2a1a069edcf3db99ae07020eeedae3023f76 Mon Sep 17 00:00:00 2001
From: Thierry Lorthiois <lorthiois@bbsoft.fr>
Date: Wed, 18 Nov 2009 05:13:38 +0000
Subject: [PATCH] Scrolling through tasks by schattenprinz

---
 src/config.c       |  4 ++++
 src/taskbar/task.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++
 src/taskbar/task.h |  3 +++
 src/tint.c         | 14 +++++++++++++
 src/util/common.h  |  2 +-
 5 files changed, 71 insertions(+), 1 deletion(-)

diff --git a/src/config.c b/src/config.c
index 1e83404..d93d2c3 100644
--- a/src/config.c
+++ b/src/config.c
@@ -173,6 +173,10 @@ void get_action (char *event, int *action)
 		*action = DESKTOP_LEFT;
 	else if (strcmp (event, "desktop_right") == 0)
 		*action = DESKTOP_RIGHT;
+	else if (strcmp (event, "next_task") == 0)
+		*action = NEXT_TASK;
+	else if (strcmp (event, "prev_task") == 0)
+		*action = PREV_TASK;
 }
 
 
diff --git a/src/taskbar/task.c b/src/taskbar/task.c
index 0d69e15..317cd8f 100644
--- a/src/taskbar/task.c
+++ b/src/taskbar/task.c
@@ -361,6 +361,55 @@ void draw_task (void *obj, cairo_t *c, int active)
 }
 
 
+Task *next_task(Task *tsk)
+{
+	GSList *l0;
+	int i, j;
+	Task *tsk1;
+
+	for (i=0 ; i < nb_panel ; i++) {
+		for (j=0 ; j < panel1[i].nb_desktop ; j++) {
+			for (l0 = panel1[i].taskbar[j].area.list; l0 ; l0 = l0->next) {
+				tsk1 = l0->data;
+				if (tsk1 == tsk) {
+					if (l0->next == NULL) l0 = panel1[i].taskbar[j].area.list;
+					else l0 = l0->next;
+					return l0->data;
+				}
+			}
+		}
+	}
+
+	return NULL;
+}
+
+Task *prev_task(Task *tsk)
+{
+	GSList *l0;
+	int i, j;
+	Task *tsk1, *tsk2;
+
+	for (i=0 ; i < nb_panel ; i++) {
+		for (j=0 ; j < panel1[i].nb_desktop ; j++) {
+			tsk2 = NULL;
+			for (l0 = panel1[i].taskbar[j].area.list; l0 ; l0 = l0->next) {
+				tsk1 = l0->data;
+				if (tsk1 == tsk) {
+					if (l0 == panel1[i].taskbar[j].area.list) {
+						l0 = g_slist_last ( l0 );
+						tsk2 = l0->data;
+					}
+					return tsk2;
+				}
+				tsk2 = tsk1;
+			}
+		}
+	}
+
+	return NULL;
+}
+
+
 void active_task()
 {
 	GSList *l0;
diff --git a/src/taskbar/task.h b/src/taskbar/task.h
index 994870e..6bb9ef3 100644
--- a/src/taskbar/task.h
+++ b/src/taskbar/task.h
@@ -70,6 +70,9 @@ void get_icon (Task *tsk);
 void get_title(Task *tsk);
 void active_task();
 
+Task *next_task (Task *tsk);
+Task *prev_task (Task *tsk);
+
 void add_urgent(Task *tsk);
 void del_urgent(Task *tsk);
 int is_urgent(Task *tsk);
diff --git a/src/tint.c b/src/tint.c
index 05d50f6..1380d65 100644
--- a/src/tint.c
+++ b/src/tint.c
@@ -223,6 +223,20 @@ void window_action (Task *tsk, int action)
 			windows_set_desktop(tsk->win, desk);
 			if (desk == server.desktop)
 				set_active(tsk->win);
+			break;
+		case NEXT_TASK:
+			if (task_active) {
+				Task *tsk1;
+				tsk1 = next_task(task_active);
+				set_active(tsk1->win);
+			}
+			break;
+		case PREV_TASK:
+			if (task_active) {
+				Task *tsk1;
+				tsk1 = prev_task(task_active);
+				set_active(tsk1->win);
+			}
 	}
 }
 
diff --git a/src/util/common.h b/src/util/common.h
index 105b73e..c7eca86 100644
--- a/src/util/common.h
+++ b/src/util/common.h
@@ -29,7 +29,7 @@ FXint fxmalloc(void** ptr,unsigned long size){
 */
 
 // mouse actions
-enum { NONE=0, CLOSE, TOGGLE, ICONIFY, SHADE, TOGGLE_ICONIFY, MAXIMIZE_RESTORE, MAXIMIZE, RESTORE, DESKTOP_LEFT, DESKTOP_RIGHT };
+enum { NONE=0, CLOSE, TOGGLE, ICONIFY, SHADE, TOGGLE_ICONIFY, MAXIMIZE_RESTORE, MAXIMIZE, RESTORE, DESKTOP_LEFT, DESKTOP_RIGHT, NEXT_TASK, PREV_TASK };
 
 #define ALLDESKTOP  0xFFFFFFFF
 
-- 
2.44.0