From ab3d823a8190ae6ec4a1444aa3b5a01aaa018586 Mon Sep 17 00:00:00 2001
From: BossCode45 <human.cyborg42@gmail.com>
Date: Fri, 3 Feb 2023 17:45:07 +1300
Subject: feat: Windows that request to be fullscreen should become fullscreen
 - more testing neededs

---
 ewmh.cpp | 12 ++++++++++++
 ewmh.h   |  2 ++
 main.cpp | 21 +++++++++++++++++++++
 3 files changed, 35 insertions(+)

diff --git a/ewmh.cpp b/ewmh.cpp
index 5a7e76c..5878e82 100644
--- a/ewmh.cpp
+++ b/ewmh.cpp
@@ -65,6 +65,18 @@ void setCurrentDesktop(int desktop)
 	XChangeProperty(*dpy_, *root_, netCurrentDesktop, XA_CARDINAL, 32, PropModeReplace, (unsigned char*)&currDesktop, 1);
 }
 
+void setFullscreen(Window w, bool fullscreen)
+{
+	Atom netWMState = XInternAtom(*dpy_, "_NET_WM_STATE", true);
+	Atom netWMStateVal;
+	if(fullscreen)
+		netWMStateVal = XInternAtom(*dpy_, "_NET_WM_STATE_FULLSCREEN", true);
+	else
+		netWMStateVal = XInternAtom(*dpy_, "", true);
+	XChangeProperty(*dpy_, w, netWMState, XA_ATOM, 32, PropModeReplace, (unsigned char*)&netWMStateVal, 1);
+
+}
+
 int getProp(Window w, char* propName, Atom* type, unsigned char** data)
 {
 	Atom prop_type = XInternAtom(*dpy_, propName, false);
diff --git a/ewmh.h b/ewmh.h
index 5fbc9a4..e8bae0c 100644
--- a/ewmh.h
+++ b/ewmh.h
@@ -18,4 +18,6 @@ void setWindowDesktop(Window w, int desktop);
 
 void setCurrentDesktop(int desktop);
 
+void setFullscreen(Window w, bool fullscreen);
+
 int getProp(Window w, char* propName, Atom* type, unsigned char** data);
diff --git a/main.cpp b/main.cpp
index 6f1cd9b..01f01c7 100644
--- a/main.cpp
+++ b/main.cpp
@@ -589,6 +589,7 @@ void fullscreen(const KeyArg arg)
 	int cID = getFrame(fID).cID;
 	getClient(cID).fullscreen ^= true;
 	tileRoots();
+	setFullscreen(focusedWindow, getClient(cID).fullscreen); 
 }
 
 void configureRequest(XConfigureRequestEvent e)
@@ -862,6 +863,26 @@ void clientMessage(XClientMessageEvent e)
 		setCurrentDesktop(currWS);
 		*/
 	}
+	else if(e.message_type == XInternAtom(dpy, "_NET_WM_STATE", false))
+	{
+		if((Atom)e.data.l[0] == 0)
+			log("\tremove");
+		if((Atom)e.data.l[0] == 1)
+			log("\ttoggle");
+		if((Atom)e.data.l[0] == 2)
+			log("\tadd");
+		char* prop1 = XGetAtomName(dpy, (Atom)e.data.l[1]);
+		log("\tprop1");
+		if((Atom)e.data.l[1] == XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", false))
+		{
+			int fID = getFrameID(e.window);
+			int cID = getFrame(fID).cID;
+			getClient(cID).fullscreen = (Atom) e.data.l[0] == 1;
+			setFullscreen(e.window, (Atom) e.data.l[0] == 1); 
+			tileRoots();
+		}
+		XFree(prop1);
+	}
 	XFree(name);
 }
 
-- 
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