int launcher_enabled;
int launcher_max_icon_size;
-
+GSList *icon_themes = 0;
void default_launcher()
{
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;
free(cmd);
}
+/***************** Freedesktop app.desktop and icon theme handling *********************/
+/* http://standards.freedesktop.org/desktop-entry-spec/ */
+/* http://standards.freedesktop.org/icon-theme-spec/ */
+
+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;
+}
+
+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) + strlen(entry->name) + strlen(entry->icon) + 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;
+ }
+}
+
+int launcher_read_desktop_file(const char *path, DesktopEntry *entry)
+{
+ FILE *fp;
+ char line[4096];
+ char *buffer;
+ char *key, *value;
+
+ entry->name = entry->icon = entry->exec = NULL;
+
+ if ((fp = fopen(path, "r")) == NULL) {
+ fprintf(stderr, "Could not open file %s\n", path);
+ return 0;
+ }
+
+ buffer = line;
+ while (fgets(buffer, sizeof(line) - (buffer - line), fp) != NULL) {
+ //TODO use UTF8 capable strlen
+ int len = strlen(buffer);
+ int total_len = strlen(line);
+ if (!g_utf8_validate(buffer, total_len, NULL)) {
+ // Not a real newline, read more
+ buffer += len;
+ if (sizeof(line) - (buffer - line) < 2) {
+ fprintf(stderr, "%s %d: line too long (%s)\n", __FILE__, __LINE__, path);
+ break;
+ } else {
+ continue;
+ }
+ }
+ // We have a valid line
+ buffer[len-1] = '\0';
+ buffer = line;
+ if (parse_dektop_line(line, &key, &value)) {
+ if (strcmp(key, "Name") == 0) {
+ //TODO use UTF-8 capable strdup
+ entry->name = strdup(value);
+ } else if (strcmp(key, "Exec") == 0) {
+ entry->exec = strdup(value);
+ } else if (strcmp(key, "Icon") == 0) {
+ //TODO use UTF-8 capable strdup
+ 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 test_launcher_read_desktop_file()
+{
+ 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);
+}
+
+IconTheme *load_theme(char *name)
+{
+ //TODO
+ // 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 struct
+ return NULL;
+}
+
+// Populates the icon_themes list
+void launcher_load_themes()
+{
+ //TODO load the user theme, all the inherited themes recursively (DFS), and the hicolor theme
+ // avoid inheritance loops
+}
+
+// Returns the full path to an icon file (or NULL) given the icon name
+char *icon_path(const char *name)
+{
+ //TODO
+ /*
+
+// Stage 1: exact size match
+LookupIcon (iconname, size):
+for each subdir in $(theme subdir list) { // <---- each subdir in each theme
+ for each directory in $(basename list) {
+ for extension in ("png", "svg", "xpm") {
+ if DirectoryMatchesSize(subdir, size) {
+ filename = directory/$(themename)/subdirectory/iconname.extension
+ if exist filename
+ return filename
+}
+}
+}
+}
+
+// Stage 2: best size match
+minimal_size = MAXINT
+for each subdir in $(theme subdir list) { // <---- each subdir in each theme
+ for each directory in $(basename list) {
+ for extension in ("png", "svg", "xpm") {
+ filename = directory/$(themename)/subdirectory/iconname.extension
+ if exist filename and DirectorySizeDistance(subdir, size) < minimal_size
+ closest_filename = filename
+ minimal_size = DirectorySizeDistance(subdir, size)
+}
+}
+}
+if closest_filename set
+ return closest_filename
+
+// Stage 3: look in unthemed icons
+for each directory in $(basename list) { // <---- $HOME/.icons, /usr/share/icons, /usr/share/pixmaps
+ for extension in ("png", "svg", "xpm") {
+ if exists directory/iconname.extension
+ return directory/iconname.extension
+ }
+ }
+
+ return failed icon lookup
+
+// With the following helper functions:
+
+DirectoryMatchesSize(subdir, iconsize):
+read Type and size data from subdir
+if Type is Fixed
+return Size == iconsize
+if Type is Scaled
+return MinSize <= iconsize <= MaxSize
+if Type is Threshold
+return Size - Threshold <= iconsize <= Size + Threshold
+
+DirectorySizeDistance(subdir, size):
+read Type and size data from subdir
+if Type is Fixed
+return abs(Size - iconsize)
+if Type is Scaled
+if iconsize < MinSize
+return MinSize - iconsize
+if iconsize > MaxSize
+return iconsize - MaxSize
+return 0
+if Type is Threshold
+if iconsize < Size - Threshold
+return MinSize - iconsize
+if iconsize > Size + Threshold
+return iconsize - MaxSize
+return 0
+ */
+}
projects / chaz / tint2 / commitdiff
