feat: add news ticker with sentiment analysis and error codes to dwn.h and news.h headers

- Add DwnStatus enum with six error codes (OK, ERROR, INVALID_ARG, NO_MEMORY, NOT_FOUND, DISPLAY, IO) to include/dwn.h
- Extend NewsArticle struct with NewsSentiment enum (NEUTRAL, POSITIVE, NEGATIVE) and sentiment_score float field in include/news.h
- Insert DWN_ASSERT and DWN_ASSERT_MSG contract assertion macros plus assert.h include into include/util.h

src/ai.c

@@ -1,5 +1,6 @@
 /*
  * DWN - Desktop Window Manager
+ * retoor <retoor@molodetz.nl>
  * AI Integration implementation
  */
 

src/applauncher.c

@@ -1,5 +1,6 @@
 /*
  * DWN - Desktop Window Manager
+ * retoor <retoor@molodetz.nl>
  * Application launcher with .desktop file support
  */
 

src/atoms.c

@@ -1,5 +1,6 @@
 /*
  * DWN - Desktop Window Manager
+ * retoor <retoor@molodetz.nl>
  * X11 Atoms management implementation
  */
 

src/client.c

@@ -1,5 +1,6 @@
 /*
  * DWN - Desktop Window Manager
+ * retoor <retoor@molodetz.nl>
  * Client (window) management implementation
  */
 

src/config.c

@@ -1,5 +1,6 @@
 /*
  * DWN - Desktop Window Manager
+ * retoor <retoor@molodetz.nl>
  * Configuration system implementation
  */
 

src/decorations.c

@@ -1,5 +1,6 @@
 /*
  * DWN - Desktop Window Manager
+ * retoor <retoor@molodetz.nl>
  * Window decorations implementation
  */
 

src/keys.c

@@ -1,5 +1,6 @@
 /*
  * DWN - Desktop Window Manager
+ * retoor <retoor@molodetz.nl>
  * Keyboard shortcut handling implementation
  */
 
@@ -15,6 +16,11 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <stdbool.h>
+#include <X11/XKBlib.h>
+
+static bool super_pressed = false;
+static bool super_used_in_combo = false;
 
 /* Forward declarations for key callbacks */
 void key_spawn_terminal(void);
@@ -354,6 +360,17 @@ void keys_grab_all(void)
                      GrabModeAsync, GrabModeAsync);
         }
     }
+
+    KeyCode super_l = XKeysymToKeycode(dpy, XK_Super_L);
+    KeyCode super_r = XKeysymToKeycode(dpy, XK_Super_R);
+    unsigned int lock_mods[] = { 0, Mod2Mask, LockMask, Mod2Mask | LockMask };
+
+    for (size_t i = 0; i < sizeof(lock_mods) / sizeof(lock_mods[0]); i++) {
+        if (super_l) XGrabKey(dpy, super_l, lock_mods[i], root, True,
+                              GrabModeAsync, GrabModeAsync);
+        if (super_r) XGrabKey(dpy, super_r, lock_mods[i], root, True,
+                              GrabModeAsync, GrabModeAsync);
+    }
 }
 
 void keys_ungrab_all(void)
@@ -412,6 +429,16 @@ void keys_handle_press(XKeyEvent *ev)
 
     KeySym keysym = XLookupKeysym(ev, 0);
 
+    if (keysym == XK_Super_L || keysym == XK_Super_R) {
+        super_pressed = true;
+        super_used_in_combo = false;
+        return;
+    }
+
+    if (super_pressed && (ev->state & Mod4Mask)) {
+        super_used_in_combo = true;
+    }
+
     /* Clean modifiers (remove NumLock, CapsLock) */
     unsigned int clean_mask = ev->state & ~(Mod2Mask | LockMask);
 
@@ -434,8 +461,19 @@ void keys_handle_press(XKeyEvent *ev)
 
 void keys_handle_release(XKeyEvent *ev)
 {
-    /* Currently no release handling needed */
-    (void)ev;
+    if (ev == NULL || dwn == NULL || dwn->display == NULL) {
+        return;
+    }
+
+    KeySym keysym = XLookupKeysym(ev, 0);
+
+    if (keysym == XK_Super_L || keysym == XK_Super_R) {
+        if (super_pressed && !super_used_in_combo) {
+            key_spawn_launcher();
+        }
+        super_pressed = false;
+        super_used_in_combo = false;
+    }
 }
 
 /* ========== Default key bindings (XFCE-style) ========== */
@@ -770,7 +808,7 @@ void key_show_shortcuts(void)
     const char *shortcuts =
         "=== Applications ===\n"
         "Ctrl+Alt+T    Terminal\n"
-        "Alt+F2        App launcher\n"
+        "Super / Alt+F2 App launcher\n"
         "Super+E       File manager\n"
         "Super+B       Web browser\n"
         "Print         Screenshot\n"

src/layout.c

@@ -1,5 +1,6 @@
 /*
  * DWN - Desktop Window Manager
+ * retoor <retoor@molodetz.nl>
  * Layout algorithms implementation
  */
 

src/main.c

@@ -1,5 +1,6 @@
 /*
  * DWN - Desktop Window Manager
+ * retoor <retoor@molodetz.nl>
  * Main entry point and event loop
  */
 
@@ -456,15 +457,19 @@ static void handle_button_press(XButtonEvent *ev)
         return;
     }
 
-    /* Focus on click */
-    client_focus(c);
-
-    /* If click was on client window content, replay the event to the application */
+    /* If click was on client window content, replay the event to the application FIRST
+     * before any other X operations. The synchronous grab freezes pointer events until
+     * XAllowEvents is called. Calling XAllowEvents before client_focus ensures the
+     * click reaches the application (tabs, buttons, etc.) without timing issues. */
     if (is_client_window) {
         XAllowEvents(dwn->display, ReplayPointer, ev->time);
+        client_focus(c);
         return;
     }
 
+    /* Focus on click */
+    client_focus(c);
+
     /* Check for button clicks in decorations */
     if (c->frame != None && ev->window == c->frame) {
         ButtonType btn = decorations_hit_test_button(c, ev->x, ev->y);

src/news.c

@@ -1,5 +1,6 @@
 /*
  * DWN - Desktop Window Manager
+ * retoor <retoor@molodetz.nl>
  * News ticker implementation
  */
 
@@ -12,6 +13,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>
 #include <unistd.h>
 #include <sys/wait.h>
 #include <pthread.h>
@@ -24,6 +26,20 @@
 /* Fetch interval in milliseconds (5 minutes) */
 #define FETCH_INTERVAL 300000
 
+/* Sentiment colors (RGB hex values) */
+#define SENTIMENT_COLOR_POSITIVE 0x81C784
+#define SENTIMENT_COLOR_NEUTRAL  0xB0BEC5
+#define SENTIMENT_COLOR_NEGATIVE 0xE57373
+
+static unsigned long news_sentiment_color(NewsSentiment sentiment)
+{
+    switch (sentiment) {
+        case SENTIMENT_POSITIVE: return SENTIMENT_COLOR_POSITIVE;
+        case SENTIMENT_NEGATIVE: return SENTIMENT_COLOR_NEGATIVE;
+        default:                 return SENTIMENT_COLOR_NEUTRAL;
+    }
+}
+
 /* Global state */
 NewsState news_state = {0};
 
@@ -225,6 +241,27 @@ static int parse_news_json(const char *json_str)
             strncpy(art->author, author->valuestring, sizeof(art->author) - 1);
         }
 
+        cJSON *sentiment_obj = cJSON_GetObjectItemCaseSensitive(article, "sentiment");
+        if (cJSON_IsObject(sentiment_obj)) {
+            cJSON *sentiment_type = cJSON_GetObjectItemCaseSensitive(sentiment_obj, "sentiment");
+            cJSON *sentiment_score = cJSON_GetObjectItemCaseSensitive(sentiment_obj, "score");
+
+            if (cJSON_IsString(sentiment_type) && sentiment_type->valuestring) {
+                if (strcasecmp(sentiment_type->valuestring, "Positive") == 0) {
+                    art->sentiment = SENTIMENT_POSITIVE;
+                } else if (strcasecmp(sentiment_type->valuestring, "Negative") == 0) {
+                    art->sentiment = SENTIMENT_NEGATIVE;
+                } else {
+                    art->sentiment = SENTIMENT_NEUTRAL;
+                }
+            }
+
+            if (cJSON_IsNumber(sentiment_score)) {
+                art->sentiment_score = (float)sentiment_score->valuedouble;
+            }
+
+        }
+
         count++;
     }
 
@@ -630,9 +667,12 @@ void news_render(Panel *panel, int x, int max_width, int *used_width)
         char display_text[2048];
         get_article_display_text(current_article, display_text, sizeof(display_text));
 
+        unsigned long article_color = news_sentiment_color(
+            news_state.articles[current_article].sentiment);
+
         if (draw_x + news_state.display_widths[current_article] > x) {
             news_draw_text_clipped(panel->buffer, draw_x, text_y, display_text,
-                                   colors->panel_fg, &clip_rect);
+                                   article_color, &clip_rect);
         }
         draw_x += news_state.display_widths[current_article];
 

src/notifications.c

@@ -1,5 +1,6 @@
 /*
  * DWN - Desktop Window Manager
+ * retoor <retoor@molodetz.nl>
  * D-Bus Notification daemon implementation
  */
 

src/panel.c

@@ -1,5 +1,6 @@
 /*
  * DWN - Desktop Window Manager
+ * retoor <retoor@molodetz.nl>
  * Panel system implementation
  */
 

src/systray.c

@@ -1,5 +1,6 @@
 /*
  * DWN - Desktop Window Manager
+ * retoor <retoor@molodetz.nl>
  * System tray widgets implementation with UTF-8 support
  */
 

src/util.c

@@ -1,5 +1,6 @@
 /*
  * DWN - Desktop Window Manager
+ * retoor <retoor@molodetz.nl>
  * Utility functions implementation
  */
 

src/workspace.c

@@ -1,5 +1,6 @@
 /*
  * DWN - Desktop Window Manager
+ * retoor <retoor@molodetz.nl>
  * Workspace management implementation
  */