Fix Chat Bugs

libreborn/include/libreborn/minecraft.h

@@ -92,6 +92,12 @@ static Minecraft_isLevelGenerated_t Minecraft_isLevelGenerated = (Minecraft_isLe
 typedef int32_t (*Minecraft_isCreativeMode_t)(unsigned char *minecraft);
 static Minecraft_isCreativeMode_t Minecraft_isCreativeMode = (Minecraft_isCreativeMode_t) 0x17270;
 
+typedef void (*Minecraft_releaseMouse_t)(unsigned char *minecraft);
+static Minecraft_releaseMouse_t Minecraft_releaseMouse = (Minecraft_releaseMouse_t) 0x15d30;
+
+typedef void (*Minecraft_grabMouse_t)(unsigned char *minecraft);
+static Minecraft_grabMouse_t Minecraft_grabMouse = (Minecraft_grabMouse_t) 0x15d10;
+
 static uint32_t Minecraft_screen_width_property_offset = 0x20; // int32_t
 static uint32_t Minecraft_server_side_network_handler_property_offset = 0x174; // ServerSideNetworkHandler *
 static uint32_t Minecraft_rak_net_instance_property_offset = 0x170; // RakNetInstance *
@@ -103,6 +109,7 @@ static uint32_t Minecraft_options_property_offset = 0x3c; // Options
 static uint32_t Minecraft_hit_result_property_offset = 0xc38; // HitResult
 static uint32_t Minecraft_progress_property_offset = 0xc60; // int32_t
 static uint32_t Minecraft_command_server_property_offset = 0xcc0; // CommandServer *
+static uint32_t Minecraft_screen_property_offset = 0xc10; // Screen *
 
 // CommandServer
 

mods/src/chat/chat.cpp

@@ -84,9 +84,16 @@ void chat_queue_message(char *message) {
     pthread_mutex_unlock(&queue_mutex);
 }
 // Empty Queue
+unsigned int old_chat_counter = 0;
 void chat_send_messages(unsigned char *minecraft) {
     // Lock
     pthread_mutex_lock(&queue_mutex);
+    // If Message Was Submitted, No Other Chat Windows Are Open, And The Game Is Not Paused, Then Re-Lock Cursor
+    unsigned int new_chat_counter = chat_get_counter();
+    if (old_chat_counter > new_chat_counter && new_chat_counter == 0 && (*(unsigned char **) (minecraft + Minecraft_screen_property_offset)) == NULL) {
+        (*Minecraft_grabMouse)(minecraft);
+    }
+    old_chat_counter = new_chat_counter;
     // Loop
     for (unsigned int i = 0; i < queue.size(); i++) {
         send_api_chat_command(minecraft, (char *) queue[i].c_str());

mods/src/chat/chat.h

@@ -5,6 +5,8 @@ extern "C" {
 #endif
 
 void chat_open();
+unsigned int chat_get_counter();
+
 void chat_queue_message(char *message);
 void chat_send_messages(unsigned char *minecraft);
 

mods/src/chat/ui.c

@@ -62,6 +62,13 @@ static char *run_command(char *command, int *return_code) {
     return output;
 }
 
+// Count Chat Windows
+static pthread_mutex_t chat_counter_lock = PTHREAD_MUTEX_INITIALIZER;
+static unsigned int chat_counter = 0;
+unsigned int chat_get_counter() {
+    return chat_counter;
+}
+
 // Chat Thread
 static void *chat_thread(__attribute__((unused)) void *nop) {
     // Prepare
@@ -84,12 +91,21 @@ static void *chat_thread(__attribute__((unused)) void *nop) {
         // Free
         free(output);
     }
+    // Update Counter
+    pthread_mutex_lock(&chat_counter_lock);
+    chat_counter--;
+    pthread_mutex_unlock(&chat_counter_lock);
     // Return
     return NULL;
 }
 
 // Create Chat Thead
 void chat_open() {
+    // Update Counter
+    pthread_mutex_lock(&chat_counter_lock);
+    chat_counter++;
+    pthread_mutex_unlock(&chat_counter_lock);
+    // Start Thread
     pthread_t thread;
     pthread_create(&thread, NULL, chat_thread, NULL);
 }

mods/src/compat/compat.c

@@ -281,13 +281,14 @@ HOOK(SDL_PollEvent, int, (SDL_Event *event)) {
                 input_third_person();
                 handled = 1;
             } else if (event->key.keysym.sym == SDLK_t) {
-                // Release Mouse Immediately
-                SDL_WM_GrabInput(SDL_GRAB_OFF);
-                // Stop Tracking Mouse
-                glfw_key(glfw_window, GLFW_KEY_TAB, -1, GLFW_PRESS, -1);
-                glfw_key(glfw_window, GLFW_KEY_TAB, -1, GLFW_RELEASE, -1);
-                // Open Chat
-                chat_open();
+                // Only When In-Game With No Other Chat Windows Open
+                if (SDL_WM_GrabInput(SDL_GRAB_QUERY) == SDL_GRAB_ON && chat_get_counter() == 0) {
+                    // Release Mouse
+                    input_set_mouse_grab_state(1);
+                    // Open Chat
+                    chat_open();
+                }
+                // Mark Handled
                 handled = 1;
             }
         } else if (event->type == SDL_MOUSEBUTTONDOWN || event->type == SDL_MOUSEBUTTONUP) {

mods/src/input/input.c

@@ -26,6 +26,12 @@ void input_third_person() {
     third_person_toggle++;
 }
 
+// Set mouse Grab State
+static int mouse_grab_state = 0;
+void input_set_mouse_grab_state(int state) {
+    mouse_grab_state = state;
+}
+
 // Handle Input Fixes
 static void Minecraft_tickInput_injection(unsigned char *minecraft) {
     // Call Original Method
@@ -61,6 +67,16 @@ static void Minecraft_tickInput_injection(unsigned char *minecraft) {
 
     // Send Queued Chat Message
     chat_send_messages(minecraft);
+
+    // Set Mouse Grab State
+    if (mouse_grab_state == -1) {
+        // Grab
+        (*Minecraft_grabMouse)(minecraft);
+    } else if (mouse_grab_state == 1) {
+        // Un-Grab
+        (*Minecraft_releaseMouse)(minecraft);
+    }
+    mouse_grab_state = 0;
 }
 
 #include <SDL/SDL_events.h>

mods/src/input/input.h

@@ -13,6 +13,8 @@ void input_third_person();
 
 void input_set_is_left_click(int val);
 
+void input_set_mouse_grab_state(int state);
+
 void init_input_cpp();
 
 #ifdef __cplusplus