Added #request directive, related to issue #4

render.c

@@ -703,6 +703,8 @@ struct renderer* rd_new(const char** paths, const char* entry, const char* force
     int shader_version = 330;
     const char* module = force_mod;
     char* xwintype = NULL, * wintitle = "GLava";
+    char** xwinstates = malloc(1);
+    size_t xwinstates_sz = 0;
     bool loading_module = true;
     struct gl_sfbo* current = NULL;
     size_t t_count = 0;
@@ -770,6 +772,14 @@ struct renderer* rd_new(const char** paths, const char* entry, const char* force
                     gl->geometry[3] = *(int*) args[3];
                 })
         },
+        {
+            .name = "addxwinstate", .fmt = "s",
+            .handler = RHANDLER(name, args, {
+                    ++xwinstates_sz;
+                    xwinstates = realloc(xwinstates, sizeof(*xwinstates) * xwinstates_sz);
+                    xwinstates[xwinstates_sz - 1] = strdup((char*) args[0]);
+                })
+        },
         {   .name = "setsource", .fmt = "s",
             .handler = RHANDLER(name, args, {
                     r->audio_source_request = strdup((char*) args[0]); })                    },
@@ -1094,7 +1104,12 @@ struct renderer* rd_new(const char** paths, const char* entry, const char* force
         xwin_settype(r, xwintype);
         free(xwintype);
     }
-        
+
+    for (size_t t = 0; t < xwinstates_sz; ++t) {
+        xwin_addstate(r, xwinstates[t]);
+        free(xwinstates);
+    }
+    
     return r;
 }
 

shaders/rc.glsl

@@ -66,6 +66,27 @@
 */
 #request setxwintype "normal"
 
+/* (X11 only) EWMH Window state atoms (multiple can be specified).
+   Possible values are:
+   
+   "modal", "sticky", "maximized_vert", "maximized_horz",
+   "shaded", "skip_taskbar", "skip_pager", "hidden", "fullscreen",
+   "above", "below", "demands_attention", "focused"
+   
+   This will add _NET_WM_STATE_(TYPE) atoms to _NET_WM_STATE,
+   where (TYPE) is one of the window states listed (after being
+   converted to uppercase).
+   
+   The lines below (commented out by default) are of relevance
+   if you are trying to get GLava to behave as a desktop widget
+   and your WM is not correctly responding to the "desktop" value
+   for `setxwintype`.
+*/
+// #request addxwinstate "sticky"
+// #request addxwinstate "skip_taskbar"
+// #request addxwinstate "skip_pager"
+// #request addxwinstate "above"
+
 /* PulseAudio source. Can be a number or a name of an audio
    sink or device to record from. Set to "auto" to use the
    default output device. */

xwin.c

@@ -64,10 +64,10 @@ bool xwin_should_render(void) {
 
 /* Set window types defined by the EWMH standard, possible values:
    -> "desktop", "dock", "toolbar", "menu", "utility", "splash", "dialog", "normal" */
-void xwin_settype(struct renderer* rd, const char* type) {
+static void xwin_changeatom(struct renderer* rd, const char* type, const char* atom, const char* fmt, int mode) {
     Window w = glfwGetX11Window((GLFWwindow*) rd_get_impl_window(rd));
     Display* d = XOpenDisplay(0);
-    Atom wtype = XInternAtom(d, "_NET_WM_WINDOW_TYPE", false);
+    Atom wtype = XInternAtom(d, atom, false);
     size_t len = strlen(type), t;
     char formatted[len + 1];
     for (t = 0; t < len + 1; ++t) {
@@ -78,12 +78,20 @@ void xwin_settype(struct renderer* rd, const char* type) {
         }
     }
     char buf[256];
-    snprintf(buf, sizeof(buf), "_NET_WM_WINDOW_TYPE_%s", formatted);
+    snprintf(buf, sizeof(buf), fmt, formatted);
     Atom desk = XInternAtom(d, buf, false);
-    XChangeProperty(d, w, wtype, XA_ATOM, 32, PropModeReplace, (unsigned char*) &desk, 1);
+    XChangeProperty(d, w, wtype, XA_ATOM, 32, mode, (unsigned char*) &desk, 1);
     XCloseDisplay(d);
 }
 
+void xwin_settype(struct renderer* rd, const char* type) {
+    xwin_changeatom(rd, type, "_NET_WM_WINDOW_TYPE", "_NET_WM_WINDOW_TYPE_%s", PropModeReplace); 
+}
+
+void xwin_addstate(struct renderer* rd, const char* state) {
+    xwin_changeatom(rd, state, "_NET_WM_STATE", "_NET_WM_STATE_%s", PropModeAppend); 
+}
+
 static Pixmap get_pixmap(Display* d, Window w) {
     Pixmap p;
     Atom act_type;

xwin.h

@@ -1,4 +1,5 @@
 
 bool xwin_should_render(void);
 void xwin_settype(struct renderer* rd, const char* type);
+void xwin_addstate(struct renderer* rd, const char* state);
 unsigned int xwin_copyglbg(struct renderer* rd, unsigned int texture);