]> Dogcows Code - chaz/tint2/blobdiff - src/launcher/launcher.c
panel_items : fixed some segfault.
[chaz/tint2] / src / launcher / launcher.c
index 55c120ef342ac17f63622edf355f40196748cf46..75388f1099b24fd9ee9975382610049336b7a8a6 100644 (file)
 
 int launcher_enabled;
 int launcher_max_icon_size;
+GSList *icon_themes = 0;
 
+#define ICON_FALLBACK "exec"
+
+char *icon_path(Launcher *launcher, const char *icon_name, int size);
+void launcher_load_themes(Launcher *launcher);
+void free_desktop_entry(DesktopEntry *entry);
+int launcher_read_desktop_file(const char *path, DesktopEntry *entry);
+Imlib_Image scale_icon(Imlib_Image original, int icon_size);
+void free_icon(Imlib_Image icon);
+void free_icon_theme(IconTheme *theme);
 
 void default_launcher()
 {
@@ -56,11 +66,16 @@ void init_launcher_panel(void *p)
        launcher->area.parent = p;
        launcher->area.panel = p;
        launcher->area._draw_foreground = draw_launcher;
+       launcher->area.size_mode = SIZE_BY_CONTENT;
        launcher->area._resize = resize_launcher;
        launcher->area.resize = 1;
        launcher->area.redraw = 1;
-       launcher->area.on_screen = 1;
 
+       // check consistency
+       if (launcher->list_apps == NULL)
+               return;
+
+       launcher->area.on_screen = 1;
        if (panel_horizontal) {
                // panel horizonal => fixed height and posy
                launcher->area.posy = panel->area.bg->border.width + panel->area.paddingy;
@@ -72,19 +87,25 @@ void init_launcher_panel(void *p)
                launcher->area.width = panel->area.width - (2 * panel->area.bg->border.width) - (2 * panel->area.paddingy);
        }
 
-       // Load icons
-       {
-               GSList* path = launcher->list_icon_paths;
-               GSList* cmd = launcher->list_cmds;
-               while (path != NULL && cmd != NULL)
-               {
-                       LauncherIcon *launcherIcon = malloc(sizeof(LauncherIcon));
-                       launcherIcon->icon = imlib_load_image(path->data);
-                       launcherIcon->cmd = strdup(cmd->data);
+       fprintf(stderr, "Loading themes...\n");
+       launcher_load_themes(launcher);
+       fprintf(stderr, "Done\n");
+
+       // Load apps (.desktop style launcher items)
+       GSList* app = launcher->list_apps;
+       while (app != NULL) {
+               DesktopEntry entry;
+               launcher_read_desktop_file(app->data, &entry);
+               if (entry.exec) {
+                       LauncherIcon *launcherIcon = calloc(1, sizeof(LauncherIcon));
+                       launcherIcon->is_app_desktop = 1;
+                       launcherIcon->cmd = strdup(entry.exec);
+                       launcherIcon->icon_name = entry.icon ? strdup(entry.icon) : strdup(ICON_FALLBACK);
+                       launcherIcon->icon_size = 1;
+                       free_desktop_entry(&entry);
                        launcher->list_icons = g_slist_append(launcher->list_icons, launcherIcon);
-                       path = g_slist_next(path);
-                       cmd = g_slist_next(cmd);
                }
+               app = g_slist_next(app);
        }
 }
 
@@ -100,27 +121,40 @@ void cleanup_launcher()
                GSList *l;
                for (l = launcher->list_icons; l ; l = l->next) {
                        LauncherIcon *launcherIcon = (LauncherIcon*)l->data;
-                       if (launcherIcon && launcherIcon->icon) {
-                               imlib_context_set_image (launcherIcon->icon);
-                               imlib_free_image();
+                       if (launcherIcon) {
+                               free_icon(launcherIcon->icon_scaled);
+                               free_icon(launcherIcon->icon_original);
+                               free(launcherIcon->icon_name);
+                               free(launcherIcon->icon_path);
+                               free(launcherIcon->cmd);
                        }
-                       free(launcherIcon->cmd);
                        free(launcherIcon);
                }
                g_slist_free(launcher->list_icons);
-               for (l = launcher->list_icon_paths; l ; l = l->next) {
+
+               for (l = launcher->list_apps; l ; l = l->next) {
                        free(l->data);
                }
-               g_slist_free(launcher->list_icon_paths);
-               for (l = launcher->list_cmds; l ; l = l->next) {
+               g_slist_free(launcher->list_apps);
+
+               for (l = launcher->icon_themes; l ; l = l->next) {
+                       IconTheme *theme = (IconTheme*) l->data;
+                       free_icon_theme(theme);
+                       free(theme);
+               }
+               g_slist_free(launcher->icon_themes);
+
+               for (l = launcher->icon_theme_names; l ; l = l->next) {
                        free(l->data);
                }
-               g_slist_free(launcher->list_cmds);
+               g_slist_free(launcher->icon_theme_names);
+               launcher->list_apps = launcher->list_icons = launcher->icon_theme_names = launcher->icon_themes = NULL;
        }
        launcher_enabled = 0;
 }
 
-void resize_launcher(void *obj)
+
+int resize_launcher(void *obj)
 {
        Launcher *launcher = obj;
        Panel *panel = launcher->area.panel;
@@ -135,6 +169,48 @@ void resize_launcher(void *obj)
        icon_size = icon_size - (2 * launcher->area.bg->border.width) - (2 * launcher->area.paddingy);
        if (launcher_max_icon_size > 0 && icon_size > launcher_max_icon_size)
                icon_size = launcher_max_icon_size;
+
+       // Resize icons if necessary
+       for (l = launcher->list_icons; l ; l = l->next) {
+               LauncherIcon *launcherIcon = (LauncherIcon *)l->data;
+               if (launcherIcon->icon_size != icon_size || !launcherIcon->icon_original) {
+                       launcherIcon->icon_size = icon_size;
+                       // Get the path for an icon file with the new size
+                       char *new_icon_path = icon_path(launcher, launcherIcon->icon_name, launcherIcon->icon_size);
+                       if (!new_icon_path) {
+                               // Draw a blank icon
+                               free_icon(launcherIcon->icon_original);
+                               launcherIcon->icon_original = NULL;
+                               free_icon(launcherIcon->icon_scaled);
+                               launcherIcon->icon_scaled = NULL;
+                               new_icon_path = icon_path(launcher, ICON_FALLBACK, launcherIcon->icon_size);
+                               if (new_icon_path) {
+                                       launcherIcon->icon_original = imlib_load_image(new_icon_path);
+                                       fprintf(stderr, "%s %d: Using icon %s\n", __FILE__, __LINE__, new_icon_path);
+                                       free(new_icon_path);
+                               }
+                               launcherIcon->icon_scaled = scale_icon(launcherIcon->icon_original, icon_size);
+                               continue;
+                       }
+                       if (launcherIcon->icon_path && strcmp(new_icon_path, launcherIcon->icon_path) == 0) {
+                               // If it's the same file just rescale
+                               free_icon(launcherIcon->icon_scaled);
+                               launcherIcon->icon_scaled = scale_icon(launcherIcon->icon_original, icon_size);
+                               free(new_icon_path);
+                               fprintf(stderr, "%s %d: Using icon %s\n", __FILE__, __LINE__, launcherIcon->icon_path);
+                       } else {
+                               // Free the old files
+                               free_icon(launcherIcon->icon_original);
+                               free_icon(launcherIcon->icon_scaled);
+                               // Load the new file and scale
+                               launcherIcon->icon_original = imlib_load_image(new_icon_path);
+                               launcherIcon->icon_scaled = scale_icon(launcherIcon->icon_original, launcherIcon->icon_size);
+                               free(launcherIcon->icon_path);
+                               launcherIcon->icon_path = new_icon_path;
+                               fprintf(stderr, "%s %d: Using icon %s\n", __FILE__, __LINE__, launcherIcon->icon_path);
+                       }
+               }
+       }
        
        count = 0;
        for (l = launcher->list_icons; l ; l = l->next) {
@@ -151,9 +227,6 @@ void resize_launcher(void *obj)
                        icons_per_row = count / icons_per_column + (count%icons_per_column != 0);
                        launcher->area.width = (2 * launcher->area.bg->border.width) + (2 * launcher->area.paddingxlr) + (icon_size * icons_per_row) + ((icons_per_row-1) * launcher->area.paddingx);
                }
-
-               launcher->area.posx = panel->area.bg->border.width + panel->area.paddingxlr;
-               launcher->area.posy = panel->area.bg->border.width;
        }
        else {
                if (!count) launcher->area.height = 0;
@@ -165,9 +238,6 @@ void resize_launcher(void *obj)
                        icons_per_column = count / icons_per_row+ (count%icons_per_row != 0);
                        launcher->area.height = (2 * launcher->area.bg->border.width) + (2 * launcher->area.paddingxlr) + (icon_size * icons_per_column) + ((icons_per_column-1) * launcher->area.paddingx);
                }
-
-               launcher->area.posx = panel->area.bg->border.width;
-               launcher->area.posy = panel->area.height - panel->area.bg->border.width - panel->area.paddingxlr - launcher->area.height;
        }
 
        int i, posx, posy;
@@ -186,8 +256,6 @@ void resize_launcher(void *obj)
                
                launcherIcon->y = posy;
                launcherIcon->x = posx;
-               launcherIcon->width = icon_size;
-               launcherIcon->height = icon_size;
                if (panel_horizontal) {
                        if (i % icons_per_column)
                                posy += icon_size + launcher->area.paddingx;
@@ -205,9 +273,7 @@ void resize_launcher(void *obj)
                        }
                }
        }
-       
-       // resize force the redraw
-       launcher->area.redraw = 1;
+       return 1;
 }
 
 
@@ -221,19 +287,7 @@ void draw_launcher(void *obj, cairo_t *c)
                LauncherIcon *launcherIcon = (LauncherIcon*)l->data;
                int pos_x = launcherIcon->x;
                int pos_y = launcherIcon->y;
-               int width = launcherIcon->width;
-               int height = launcherIcon->height;
-               Imlib_Image icon_scaled;
-               if (launcherIcon->icon) {
-                       imlib_context_set_image (launcherIcon->icon);
-                       icon_scaled = imlib_create_cropped_scaled_image(0, 0, imlib_image_get_width(), imlib_image_get_height(), width, height);
-               } else {
-                       icon_scaled = imlib_create_image(width, height);
-                       imlib_context_set_image (icon_scaled);
-                       imlib_context_set_color(255, 255, 255, 255);
-                       imlib_image_fill_rectangle(0, 0, width, height);
-               }
-
+               Imlib_Image icon_scaled = launcherIcon->icon_scaled;
                // Render
                imlib_context_set_image (icon_scaled);
                if (server.real_transparency) {
@@ -243,6 +297,28 @@ void draw_launcher(void *obj, cairo_t *c)
                        imlib_context_set_drawable(launcher->area.pix);
                        imlib_render_image_on_drawable (pos_x, pos_y);
                }
+       }
+}
+
+Imlib_Image scale_icon(Imlib_Image original, int icon_size)
+{
+       Imlib_Image icon_scaled;
+       if (original) {
+               imlib_context_set_image (original);
+               icon_scaled = imlib_create_cropped_scaled_image(0, 0, imlib_image_get_width(), imlib_image_get_height(), icon_size, icon_size);
+       } else {
+               icon_scaled = imlib_create_image(icon_size, icon_size);
+               imlib_context_set_image (icon_scaled);
+               imlib_context_set_color(255, 255, 255, 255);
+               imlib_image_fill_rectangle(0, 0, icon_size, icon_size);
+       }
+       return icon_scaled;
+}
+
+void free_icon(Imlib_Image icon)
+{
+       if (icon) {
+               imlib_context_set_image(icon);
                imlib_free_image();
        }
 }
@@ -251,18 +327,594 @@ void launcher_action(LauncherIcon *icon)
 {
        char *cmd = malloc(strlen(icon->cmd) + 10);
        sprintf(cmd, "(%s&)", icon->cmd);
-       if (cmd) {
-               pid_t pid;
-               pid = fork();
-               if (pid == 0) {
-                       // change for the fork the signal mask
-                       //                      sigset_t sigset;
-                       //                      sigprocmask(SIG_SETMASK, &sigset, 0);
-                       //                      sigprocmask(SIG_UNBLOCK, &sigset, 0);
-                       // exec
-                       execl("/bin/sh", "/bin/sh", "-c", cmd, NULL);
-                       _exit(0);
+       tint_exec(cmd);
+       free(cmd);
+}
+
+/***************** Freedesktop app.desktop and icon theme handling  *********************/
+/* http://standards.freedesktop.org/desktop-entry-spec/ */
+/* http://standards.freedesktop.org/icon-theme-spec/ */
+
+// Splits line at first '=' and returns 1 if successful, and parts are not empty
+// key and value point to the parts
+int parse_dektop_line(char *line, char **key, char **value)
+{
+       char *p;
+       int found = 0;
+       *key = line;
+       for (p = line; *p; p++) {
+               if (*p == '=') {
+                       *value = p + 1;
+                       *p = 0;
+                       found = 1;
+                       break;
+               }
+       }
+       if (!found)
+               return 0;
+       if (found && (strlen(*key) == 0 || strlen(*value) == 0))
+               return 0;
+       return 1;
+}
+
+int parse_theme_line(char *line, char **key, char **value)
+{
+       return parse_dektop_line(line, key, value);
+}
+
+void expand_exec(DesktopEntry *entry, const char *path)
+{
+       // Expand % in exec
+       // %i -> --icon Icon
+       // %c -> Name
+       // %k -> path
+       if (entry->exec) {
+               char *exec2 = malloc(strlen(entry->exec) + (entry->name ? strlen(entry->name) : 1) + (entry->icon ? strlen(entry->icon) : 1) + 100);
+               char *p, *q;
+               // p will never point to an escaped char
+               for (p = entry->exec, q = exec2; *p; p++, q++) {
+                       *q = *p; // Copy
+                       if (*p == '\\') {
+                               p++, q++;
+                               // Copy the escaped char
+                               if (*p == '%') // For % we delete the backslash, i.e. write % over it
+                                       q--;
+                               *q = *p;
+                               if (!*p) break;
+                               continue;
+                       }
+                       if (*p == '%') {
+                               p++;
+                               if (!*p) break;
+                               if (*p == 'i' && entry->icon != NULL) {
+                                       sprintf(q, "--icon '%s'", entry->icon);
+                                       q += strlen("--icon ''");
+                                       q += strlen(entry->icon);
+                                       q--; // To balance the q++ in the for
+                               } else if (*p == 'c' && entry->name != NULL) {
+                                       sprintf(q, "'%s'", entry->name);
+                                       q += strlen("''");
+                                       q += strlen(entry->name);
+                                       q--; // To balance the q++ in the for
+                               } else if (*p == 'c') {
+                                       sprintf(q, "'%s'", path);
+                                       q += strlen("''");
+                                       q += strlen(path);
+                                       q--; // To balance the q++ in the for
+                               } else {
+                                       // We don't care about other expansions
+                                       q--; // Delete the last % from q
+                               }
+                               continue;
+                       }
+               }
+               *q = '\0';
+               free(entry->exec);
+               entry->exec = exec2;
+       }
+}
+
+//TODO Use UTF8 when parsing the file
+int launcher_read_desktop_file(const char *path, DesktopEntry *entry)
+{
+       FILE *fp;
+       char line[4096];
+       char *key, *value;
+
+       entry->name = entry->icon = entry->exec = NULL;
+
+       if ((fp = fopen(path, "rt")) == NULL) {
+               fprintf(stderr, "Could not open file %s\n", path);
+               return 0;
+       }
+
+       while (fgets(line, sizeof(line), fp) != NULL) {
+               int len = strlen(line);
+               if (len == 0)
+                       continue;
+               line[len - 1] = '\0';
+               if (parse_dektop_line(line, &key, &value)) {
+                       if (strcmp(key, "Name") == 0) {
+                               entry->name = strdup(value);
+                       } else if (strcmp(key, "Exec") == 0) {
+                               entry->exec = strdup(value);
+                       } else if (strcmp(key, "Icon") == 0) {
+                               entry->icon = strdup(value);
+                       }
+               }
+       }
+       fclose (fp);
+       // From this point:
+       // entry->name, entry->icon, entry->exec will never be empty strings (can be NULL though)
+
+       expand_exec(entry, path);
+       
+       return 1;
+}
+
+void free_desktop_entry(DesktopEntry *entry)
+{
+       free(entry->name);
+       free(entry->icon);
+       free(entry->exec);
+}
+
+void test_launcher_read_desktop_file()
+{
+       fprintf(stdout, "\033[1;33m");
+       DesktopEntry entry;
+       launcher_read_desktop_file("/usr/share/applications/firefox.desktop", &entry);
+       printf("Name:%s Icon:%s Exec:%s\n", entry.name, entry.icon, entry.exec);
+       fprintf(stdout, "\033[0m");
+}
+
+//TODO Use UTF8 when parsing the file
+IconTheme *load_theme(char *name)
+{
+       // Look for name/index.theme in $HOME/.icons, /usr/share/icons, /usr/share/pixmaps (stop at the first found)
+       // Parse index.theme -> list of IconThemeDir with attributes
+       // Return IconTheme*
+
+       IconTheme *theme;
+       char *file_name;
+       FILE *f;
+       char line[2048];
+
+       if (name == NULL)
+               return NULL;
+
+       fprintf(stderr, "Loading icon theme %s\n", name);
+
+       file_name = malloc(100 + strlen(name));
+       sprintf(file_name, "~/.icons/%s/index.theme", name);
+       if (!g_file_test(file_name, G_FILE_TEST_EXISTS)) {
+               sprintf(file_name, "/usr/share/icons/%s/index.theme", name);
+               if (!g_file_test(file_name, G_FILE_TEST_EXISTS)) {
+                       sprintf(file_name, "/usr/share/pixmaps/%s/index.theme", name);
+                       if (!g_file_test(file_name, G_FILE_TEST_EXISTS)) {
+                               free(file_name);
+                               file_name = NULL;
+                       }
+               }
+       }
+       if (!file_name) {
+               fprintf(stderr, "Could not load theme %s\n", name);
+               return NULL;
+       }
+
+       if ((f = fopen(file_name, "rt")) == NULL)
+               return NULL;
+
+       free(file_name);
+
+       theme = calloc(1, sizeof(IconTheme));
+       theme->name = strdup(name);
+       theme->list_inherits = NULL;
+       theme->list_directories = NULL;
+
+       IconThemeDir *current_dir = NULL;
+       int inside_header = 1;
+       while (fgets(line, sizeof(line), f) != NULL) {
+               char *key, *value;
+               
+               int line_len = strlen(line);
+               if (line_len >= 1) {
+                       if (line[line_len - 1] == '\n') {
+                               line[line_len - 1] = '\0';
+                               line_len--;
+                       }
                }
+
+               if (line_len == 0)
+                       continue;
+
+               if (inside_header) {
+                       if (parse_theme_line(line, &key, &value)) {
+                               if (strcmp(key, "Inherits") == 0) {
+                                       // value is like oxygen,wood,default
+                                       char *token;
+                                       token = strtok(value, ",\n");
+                                       while (token != NULL)
+                                       {
+                                               theme->list_inherits = g_slist_append(theme->list_inherits, strdup(token));
+                                               token = strtok(NULL, ",\n");
+                                       }
+                               } else if (strcmp(key, "Directories") == 0) {
+                                       // value is like 48x48/apps,48x48/mimetypes,32x32/apps,scalable/apps,scalable/mimetypes
+                                       char *token;
+                                       token = strtok(value, ",\n");
+                                       while (token != NULL)
+                                       {
+                                               IconThemeDir *dir = calloc(1, sizeof(IconThemeDir));
+                                               dir->name = strdup(token);
+                                               dir->max_size = dir->min_size = dir->size = -1;
+                                               dir->type = ICON_DIR_TYPE_THRESHOLD;
+                                               dir->threshold = 2;
+                                               theme->list_directories = g_slist_append(theme->list_directories, dir);
+                                               token = strtok(NULL, ",\n");
+                                       }
+                               }
+                       }
+               } else if (current_dir != NULL) {
+                       if (parse_theme_line(line, &key, &value)) {
+                               if (strcmp(key, "Size") == 0) {
+                                       // value is like 24
+                                       sscanf(value, "%d", &current_dir->size);
+                                       if (current_dir->max_size == -1)
+                                               current_dir->max_size = current_dir->size;
+                                       if (current_dir->min_size == -1)
+                                               current_dir->min_size = current_dir->size;
+                               } else if (strcmp(key, "MaxSize") == 0) {
+                                       // value is like 24
+                                       sscanf(value, "%d", &current_dir->max_size);
+                               } else if (strcmp(key, "MinSize") == 0) {
+                                       // value is like 24
+                                       sscanf(value, "%d", &current_dir->min_size);
+                               } else if (strcmp(key, "Threshold") == 0) {
+                                       // value is like 2
+                                       sscanf(value, "%d", &current_dir->threshold);
+                               } else if (strcmp(key, "Type") == 0) {
+                                       // value is Fixed, Scalable or Threshold
+                                       if (strcmp(value, "Fixed") == 0) {
+                                               current_dir->type = ICON_DIR_TYPE_FIXED;
+                                       } else if (strcmp(value, "Scalable") == 0) {
+                                               current_dir->type = ICON_DIR_TYPE_SCALABLE;
+                                       } else if (strcmp(value, "Threshold") == 0) {
+                                               current_dir->type = ICON_DIR_TYPE_THRESHOLD;
+                                       }
+                               } else if (strcmp(key, "Context") == 0) {
+                                       // usual values: Actions, Applications, Devices, FileSystems, MimeTypes
+                                       current_dir->context = strdup(value);
+                               }
+                       }
+               }
+
+               if (line[0] == '[' && line[line_len - 1] == ']' && strcmp(line, "[Icon Theme]") != 0) {
+                       inside_header = 0;
+                       current_dir = NULL;
+                       line[line_len - 1] = '\0';
+                       char *dir_name = line + 1;
+                       GSList* dir_item = theme->list_directories;
+                       while (dir_item != NULL)
+                       {
+                               IconThemeDir *dir = dir_item->data;
+                               if (strcmp(dir->name, dir_name) == 0) {
+                                       current_dir = dir;
+                                       break;
+                               }
+                               dir_item = g_slist_next(dir_item);
+                       }
+               }
+       }
+       fclose(f);
+       
+       return theme;
+}
+
+void free_icon_theme(IconTheme *theme)
+{
+       free(theme->name);
+       GSList *l_inherits;
+       for (l_inherits = theme->list_inherits; l_inherits ; l_inherits = l_inherits->next) {
+               free(l_inherits->data);
+       }
+       GSList *l_dir;
+       for (l_dir = theme->list_directories; l_dir ; l_dir = l_dir->next) {
+               IconThemeDir *dir = (IconThemeDir *)l_dir->data;
+               free(dir->name);
+               free(dir->context);
+               free(l_dir->data);
        }
 }
 
+void test_launcher_read_theme_file()
+{
+       fprintf(stdout, "\033[1;33m");
+       IconTheme *theme = load_theme("oxygen");
+       if (!theme) {
+               printf("Could not load theme\n");
+               return;
+       }
+       printf("Loaded theme: %s\n", theme->name);
+       GSList* item = theme->list_inherits;
+       while (item != NULL)
+       {
+               printf("Inherits:%s\n", (char*)item->data);
+               item = g_slist_next(item);
+       }
+       item = theme->list_directories;
+       while (item != NULL)
+       {
+               IconThemeDir *dir = item->data;
+               printf("Dir:%s Size=%d MinSize=%d MaxSize=%d Threshold=%d Type=%s Context=%s\n",
+                          dir->name, dir->size, dir->min_size, dir->max_size, dir->threshold,
+                          dir->type == ICON_DIR_TYPE_FIXED ? "Fixed" :
+                          dir->type == ICON_DIR_TYPE_SCALABLE ? "Scalable" :
+                          dir->type == ICON_DIR_TYPE_THRESHOLD ? "Threshold" : "?????",
+                          dir->context);
+               item = g_slist_next(item);
+       }
+       fprintf(stdout, "\033[0m");
+}
+
+// Populates the icon_themes list
+void launcher_load_themes(Launcher *launcher)
+{
+       // load the user theme, all the inherited themes recursively (DFS), and the hicolor theme
+       // avoid inheritance loops
+
+       GSList *queue = NULL;
+       GSList *queued = NULL;
+
+       GSList* icon_theme_name_item;
+       for (icon_theme_name_item = launcher->icon_theme_names; icon_theme_name_item; icon_theme_name_item = g_slist_next(icon_theme_name_item)) {
+               int duplicate = 0;
+               GSList* queued_item = queued;
+               while (queued_item != NULL) {
+                       if (strcmp(queued_item->data, icon_theme_name_item->data) == 0) {
+                               duplicate = 1;
+                               break;
+                       }
+                       queued_item = g_slist_next(queued_item);
+               }
+               if (!duplicate) {
+                       queue = g_slist_append(queue, strdup(icon_theme_name_item->data));
+                       queued = g_slist_append(queued, strdup(icon_theme_name_item->data));
+               }
+       }
+
+       int hicolor_loaded = 0;
+       while (queue || !hicolor_loaded) {
+               if (!queue) {
+                       GSList* queued_item = queued;
+                       while (queued_item != NULL) {
+                               if (strcmp(queued_item->data, "hicolor") == 0) {
+                                       hicolor_loaded = 1;
+                                       break;
+                               }
+                               queued_item = g_slist_next(queued_item);
+                       }
+                       if (hicolor_loaded)
+                               break;
+                       queue = g_slist_append(queue, strdup("hicolor"));
+                       queued = g_slist_append(queued, strdup("hicolor"));
+               }
+               
+               char *name = queue->data;
+               queue = g_slist_remove(queue, name);
+
+               IconTheme *theme = load_theme(name);
+               if (theme != NULL) {
+                       launcher->icon_themes = g_slist_append(launcher->icon_themes, theme);
+
+                       GSList* item = theme->list_inherits;
+                       int pos = 0;
+                       while (item != NULL)
+                       {
+                               char *parent = item->data;
+                               int duplicate = 0;
+                               GSList* queued_item = queued;
+                               while (queued_item != NULL) {
+                                       if (strcmp(queued_item->data, parent) == 0) {
+                                               duplicate = 1;
+                                               break;
+                                       }
+                                       queued_item = g_slist_next(queued_item);
+                               }
+                               if (!duplicate) {
+                                       queue = g_slist_insert(queue, strdup(parent), pos);
+                                       pos++;
+                                       queued = g_slist_append(queued, strdup(parent));
+                               }
+                               item = g_slist_next(item);
+                       }
+               }
+       }
+
+       // Free the queue
+       GSList *l;
+       for (l = queue; l ; l = l->next)
+               free(l->data);
+       g_slist_free(queue);
+       for (l = queued; l ; l = l->next)
+               free(l->data);
+       g_slist_free(queued);
+}
+
+int directory_matches_size(IconThemeDir *dir, int size)
+{
+       if (dir->type == ICON_DIR_TYPE_FIXED) {
+               return dir->size == size;
+       } else if (dir->type == ICON_DIR_TYPE_SCALABLE) {
+               return dir->min_size <= size && size <= dir->max_size;
+       } else /*if (dir->type == ICON_DIR_TYPE_THRESHOLD)*/ {
+               return dir->size - dir->threshold <= size && size <= dir->size + dir->threshold;
+       }
+}
+
+int directory_size_distance(IconThemeDir *dir, int size)
+{
+       if (dir->type == ICON_DIR_TYPE_FIXED) {
+               return abs(dir->size - size);
+       } else if (dir->type == ICON_DIR_TYPE_SCALABLE) {
+               if (size < dir->min_size) {
+                       return dir->min_size - size;
+               } else if (size > dir->max_size) {
+                       return size - dir->max_size;
+               } else {
+                       return 0;
+               }
+       } else /*if (dir->type == ICON_DIR_TYPE_THRESHOLD)*/ {
+               if (size < dir->size - dir->threshold) {
+                       return dir->min_size - size;
+               } else if (size > dir->size + dir->threshold) {
+                       return size - dir->max_size;
+               } else {
+                       return 0;
+               }
+       }
+}
+
+// Returns the full path to an icon file (or NULL) given the icon name
+char *icon_path(Launcher *launcher, const char *icon_name, int size)
+{
+       if (icon_name == NULL)
+               return NULL;
+       
+       // If the icon_name is already a path and the file exists, return it
+       if (strstr(icon_name, "/") == icon_name) {
+               if (g_file_test(icon_name, G_FILE_TEST_EXISTS))
+                       return strdup(icon_name);
+               else
+                       return NULL;
+       }
+
+       GSList *basenames = NULL;
+       basenames = g_slist_append(basenames, "~/.icons");
+       basenames = g_slist_append(basenames, "/usr/share/icons");
+       basenames = g_slist_append(basenames, "/usr/share/pixmaps");
+
+       GSList *extensions = NULL;
+       extensions = g_slist_append(extensions, "png");
+       extensions = g_slist_append(extensions, "xpm");
+
+       // Stage 1: exact size match
+       GSList *theme;
+       for (theme = launcher->icon_themes; theme; theme = g_slist_next(theme)) {
+               GSList *dir;
+               for (dir = ((IconTheme*)theme->data)->list_directories; dir; dir = g_slist_next(dir)) {
+                       if (directory_matches_size((IconThemeDir*)dir->data, size)) {
+                               GSList *base;
+                               for (base = basenames; base; base = g_slist_next(base)) {
+                                       GSList *ext;
+                                       for (ext = extensions; ext; ext = g_slist_next(ext)) {
+                                               char *base_name = (char*) base->data;
+                                               char *theme_name = ((IconTheme*)theme->data)->name;
+                                               char *dir_name = ((IconThemeDir*)dir->data)->name;
+                                               char *extension = (char*) ext->data;
+                                               char *file_name = malloc(strlen(base_name) + strlen(theme_name) +
+                                                       strlen(dir_name) + strlen(icon_name) + strlen(extension) + 100);
+                                               // filename = directory/$(themename)/subdirectory/iconname.extension
+                                               sprintf(file_name, "%s/%s/%s/%s.%s", base_name, theme_name, dir_name, icon_name, extension);
+                                               //printf("checking %s\n", file_name);
+                                               if (g_file_test(file_name, G_FILE_TEST_EXISTS)) {
+                                                       g_slist_free(basenames);
+                                                       g_slist_free(extensions);
+                                                       return file_name;
+                                               } else {
+                                                       free(file_name);
+                                                       file_name = NULL;
+                                               }
+                                       }
+                               }
+                       }
+               }
+       }
+
+       // Stage 2: best size match
+       // Contrary to the freedesktop spec, we are not choosing the closest icon in size, but the next larger icon
+       // otherwise the quality is usually crap (for size 22, if you can choose 16 or 32, you're better with 32)
+       // We do fallback to the closest size if we cannot find a larger or equal icon
+       int minimal_size = INT_MAX;
+       char *best_file_name = NULL;
+       int next_larger_size = -1;
+       char *next_larger = NULL;
+       for (theme = launcher->icon_themes; theme; theme = g_slist_next(theme)) {
+               GSList *dir;
+               for (dir = ((IconTheme*)theme->data)->list_directories; dir; dir = g_slist_next(dir)) {
+                       GSList *base;
+                       for (base = basenames; base; base = g_slist_next(base)) {
+                               GSList *ext;
+                               for (ext = extensions; ext; ext = g_slist_next(ext)) {
+                                       char *base_name = (char*) base->data;
+                                       char *theme_name = ((IconTheme*)theme->data)->name;
+                                       char *dir_name = ((IconThemeDir*)dir->data)->name;
+                                       char *extension = (char*) ext->data;
+                                       char *file_name = malloc(strlen(base_name) + strlen(theme_name) +
+                                       strlen(dir_name) + strlen(icon_name) + strlen(extension) + 100);
+                                       // filename = directory/$(themename)/subdirectory/iconname.extension
+                                       sprintf(file_name, "%s/%s/%s/%s.%s", base_name, theme_name, dir_name, icon_name, extension);
+                                       if (g_file_test(file_name, G_FILE_TEST_EXISTS)) {
+                                               if (directory_size_distance((IconThemeDir*)dir->data, size) < minimal_size) {
+                                                       if (best_file_name) {
+                                                               free(best_file_name);
+                                                               best_file_name = NULL;
+                                                       }
+                                                       best_file_name = strdup(file_name);
+                                                       minimal_size = directory_size_distance((IconThemeDir*)dir->data, size);
+                                               }
+                                               if (((IconThemeDir*)dir->data)->size >= size && (next_larger_size == -1 || ((IconThemeDir*)dir->data)->size < next_larger_size)) {
+                                                       if (next_larger) {
+                                                               free(next_larger);
+                                                               next_larger = NULL;
+                                                       }
+                                                       next_larger = strdup(file_name);
+                                                       next_larger_size = ((IconThemeDir*)dir->data)->size;
+                                               }
+                                       }
+                                       free(file_name);
+                               }
+                       }
+               }
+       }
+       if (next_larger) {
+               g_slist_free(basenames);
+               g_slist_free(extensions);
+               free(best_file_name);
+               return next_larger;
+       }
+       if (best_file_name) {
+               g_slist_free(basenames);
+               g_slist_free(extensions);
+               return best_file_name;
+       }
+
+       // Stage 3: look in unthemed icons
+       {
+               GSList *base;
+               for (base = basenames; base; base = g_slist_next(base)) {
+                       GSList *ext;
+                       for (ext = extensions; ext; ext = g_slist_next(ext)) {
+                               char *base_name = (char*) base->data;
+                               char *extension = (char*) ext->data;
+                               char *file_name = malloc(strlen(base_name) + strlen(icon_name) +
+                                       strlen(extension) + 100);
+                               // filename = directory/iconname.extension
+                               sprintf(file_name, "%s/%s.%s", base_name, icon_name, extension);
+                               //printf("checking %s\n", file_name);
+                               if (g_file_test(file_name, G_FILE_TEST_EXISTS)) {
+                                       g_slist_free(basenames);
+                                       g_slist_free(extensions);
+                                       return file_name;
+                               } else {
+                                       free(file_name);
+                                       file_name = NULL;
+                               }
+                       }
+               }
+       }
+
+       fprintf(stderr, "Could not find icon %s\n", icon_name);
+
+       return NULL;
+}
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