Added decorations.(c/h) Files

decorations.c

@@ -0,0 +1,66 @@
+#include <stdlib.h>
+
+#include "decorations.h"
+#include "util.h"
+
+#define _DECOR_FLAGS_PREFER_CSD_    (1 << 0)
+
+Decoration *
+X11DecorCreate(void)
+{
+    Decoration *decor = malloc(sizeof(Decoration));
+    if(decor)
+    {
+        decor->w = 1;
+        decor->h = 1;
+        decor->win = 0;
+        decor->flags = 0;
+    }
+    return decor;
+}
+
+void 
+X11DecorHoldChild(Decoration *decor, XCBWindow child)
+{
+    if(!decor)
+    {   return;
+    }
+    decor->child = child;
+}
+
+void 
+X11DecorMap(XCBDisplay *display, Decoration *decor)
+{
+    if(!display || !decor)
+    {   return;
+    }
+    XCBMapWindow(display, decor->win);
+}
+
+void
+X11DecorUnmap(XCBDisplay *display, Decoration *decor)
+{
+    if(!display || !decor)
+    {   return;
+    }
+    XCBUnmapWindow(display, decor->win);
+}
+
+void 
+X11DecorSetPreferCSD(Decoration *decor, uint8_t state)
+{
+    if(!decor)
+    {   return;
+    }
+    const char *const GTK_CSD = "GTK_CSD";
+    const char *const GTK_REPLACE = "1";
+
+    SETFLAG(decor->flags, _DECOR_FLAGS_PREFER_CSD_, !!state);
+
+    if(state)
+    {   setenv(GTK_CSD, GTK_REPLACE, 1);
+    }
+    else
+    {   unsetenv(GTK_CSD);
+    }
+}

decorations.h

@@ -0,0 +1,37 @@
+#ifndef _WM_DECORATIONS_H_
+#define _WM_DECORATIONS_H_
+
+
+#include "XCB-TRL/xcb_trl.h"
+
+typedef struct Decoration Decoration;
+
+
+struct Decoration
+{
+    /* TODO */
+    uint16_t w;
+    uint16_t h;
+    XCBWindow win;
+    XCBWindow child;
+    uint8_t flags;
+    uint8_t pad0[3];
+};
+
+/* Allocates a decoration with all properties set to 0 or NULL. 
+ * RETURN: Decoration * on Success.
+ * RETURN: NULL on Failure.
+ */
+Decoration *X11DecorCreate(void);
+/*
+ * NOTE: Only 1 child can be held by a decoration.
+ */
+void X11DecorHoldChild(Decoration *decor, XCBWindow child);
+/* Maps associated decoration window.
+ */
+void X11DecorMap(XCBDisplay *display, Decoration *decor);
+
+void X11DecorPreferCSD(Decoration *decor);
+
+
+#endif