Implement 'prev' and 'prevstacked' actions

1 files changed, 65 insertions, 0 deletions

diff --git a/src/taskbar.c b/src/taskbar.c
index f8ab13c..c553652 100644
--- a/src/taskbar.c
+++ b/src/taskbar.c
@@ -701,6 +701,71 @@ void FocusNextStackedCircular() {
 
 /***************************************************************************
  ***************************************************************************/
+void FocusPreviousStackedCircular() {
+
+	ClientNode *ac;
+	ClientNode *np;
+	int x;
+
+	ac = GetActiveClient();
+	np = NULL;
+
+	/* Check for a valid client below this client in the same layer. */
+	if(ac) {
+		for(np = ac->prev; np; np = np->prev) {
+			if(ShouldFocusItem(np)) {
+				break;
+			}
+		}
+	}
+
+	/* Check for a valid client in upper layers. */
+	if(ac && !np) {
+		for(x = ac->state.layer + 1; x <= LAYER_TOP; x++) {
+			for(np = nodes[x]; np; np = np->next) {
+				if(!np->next) {
+					break;
+				}
+			}
+			for(; np; np = np->prev) {
+				if(ShouldFocusItem(np)) {
+					break;
+				}
+			}
+			if(np) {
+				break;
+			}
+		}
+	}
+
+
+	/* Revert to the bottom-most valid client. */
+	if(!np) {
+		for(x = LAYER_BOTTOM; x <= LAYER_TOP; x++) {
+			for(np = nodes[x]; np; np = np->next) {
+				if(!np->next) {
+					break;
+				}
+			}
+			for(; np; np = np->prev) {
+				if(ShouldFocusItem(np)) {
+					break;
+				}
+			}
+			if(np) {
+				break;
+			}
+		}
+	}
+
+	if(np) {
+		FocusClient(np);
+	}
+}
+
+
+/***************************************************************************
+ ***************************************************************************/
 Node *GetNode(TaskBarType *bar, int x) {
 
 	Node *tp;