Implement roster to chat view transition

3 files changed, 32 insertions, 2 deletions

diff --git a/data.c b/data.c
index e2bfc30..c0a0592 100644
--- a/data.c
+++ b/data.c
@@ -64,3 +64,24 @@ void add_roster_item(const char* jid, const char* subscription, const char* name
 	item->page_widget = gui_add_chat();
 
 }
+
+void* data_get_chat_page(void* roster_item_widget) {
+
+	if (roster == NULL) {
+		printf("Empty roster!\n");
+		exit(1);
+	} else {
+		roster_item_t* current = roster;
+		while (1) {
+			if (current->widget == roster_item_widget) {
+				return current->page_widget;
+			}
+			if (current->next == NULL) {
+				printf("Could not find matching roster item!\n");
+				exit(1);
+			}
+			current = current->next;
+		}
+	}
+
+}
diff --git a/data.h b/data.h
index 7536227..6fabbe6 100644
--- a/data.h
+++ b/data.h
@@ -1 +1,2 @@
 void add_roster_item(const char* jid, const char* subscription, const char* name);
+void* data_get_chat_page(void* roster_item_widget);
diff --git a/gtk.c b/gtk.c
index 8e39a73..d4b1cfc 100644
--- a/gtk.c
+++ b/gtk.c
@@ -4,6 +4,7 @@
 #include <stdio.h>
 
 #include "limox.h"
+#include "data.h"
 
 
 // the GTK application is available as global variable
@@ -219,6 +220,13 @@ void gui_add_message(const char* sender_jid, const char* content) {
 	printf("Received from %s:\n%s\n", sender_jid, content);
 }
 
+static void to_chat(GtkWidget* roster_item_widget) {
+
+	GtkWidget* chat_page = data_get_chat_page((void*)roster_item_widget);
+	gtk_stack_set_visible_child(GTK_STACK(stack), chat_page);
+
+}
+
 void* gui_add_roster_item(const char* jid, const char* sub, const char* name) {
 
 	// print debug message
@@ -238,8 +246,8 @@ void* gui_add_roster_item(const char* jid, const char* sub, const char* name) {
 
 	// add roster item widget to roster page
 	gtk_box_append(GTK_BOX(roster_content_box), roster_item_widget);
-	//g_signal_connect_swapped(roster_item_widget, "clicked", G_CALLBACK(to_chat),
-	//	chat->chat_layout_box);  TODO this should be realized again
+	g_signal_connect_swapped(roster_item_widget, "clicked", G_CALLBACK(to_chat),
+	                         roster_item_widget);
 
 	return (void*)roster_item_widget;
 }