From d3f30bad3c8ab68c0eb608cbb62a7cc5994832e9 Mon Sep 17 00:00:00 2001
From: Wesley Kerfoot <wjak56@gmail.com>
Date: Sun, 28 Jun 2020 19:08:37 -0400
Subject: [PATCH] fullscreen new windows and focus them

---
 src/nimwin.nim | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/src/nimwin.nim b/src/nimwin.nim
index 01295f2..06b89c3 100644
--- a/src/nimwin.nim
+++ b/src/nimwin.nim
@@ -6,6 +6,7 @@ var root : TWindow
 proc handleBadWindow(display : PDisplay, ev : PXErrorEvent) : cint {.cdecl.} =
   # resourceID maps to the Window's XID
   # ev.resourceID
+  echo "Bad window", ": ", ev.resourceid
   0
 
 proc handleIOError(display : PDisplay) : cint {.cdecl.} =
@@ -140,6 +141,11 @@ proc getAttributes(display : PDisplay, window : PWindow) : Option[TXWindowAttrib
     return none(TXWindowAttributes)
   return some(attrs)
 
+proc changeEvMask(display : PDisplay, window : PWindow, eventMask : clong) =
+  var attributes : TXSetWindowAttributes
+  attributes.eventMask = eventMask
+  discard display.XChangeWindowAttributes(window[], CWEventMask, attributes.addr)
+
 iterator getChildren(display : PDisplay) : Window =
   var currentWindow : PWindow
   var rootReturn : TWindow
@@ -299,6 +305,8 @@ when isMainModule:
 
   root = DefaultRootWindow(display)
 
+  display.changeEvMask(root.addr, SubstructureNotifyMask or StructureNotifyMask or ExposureMask)
+
   display.grabKeyCombo(XK_Return, @[ShiftMask.cuint])
   display.grabKeyCombo(XK_T, @[ShiftMask.cuint])
   display.grabKeyCombo(XK_Tab) # Cycle through windows
@@ -352,6 +360,7 @@ when isMainModule:
           let windowStack = filter(toSeq(getChildren(display)), (w) => not w.props.anyIt(it.name.in(ignored)))
 
           if windowStack.len > 0:
+            echo "Tab cycling shit, raising this window: ", windowStack[0].win
             discard display.XSetInputFocus(windowStack[0].win, RevertToPointerRoot, CurrentTime)
             discard display.XRaiseWindow(windowStack[0].win)
 
@@ -406,6 +415,27 @@ when isMainModule:
       discard XGetWindowAttributes(display, ev.xButton.subWindow, attr.addr)
       start = ev.xButton
 
+    elif (ev.theType == CreateNotify) and (ev.xcreatewindow.parent == root):
+      let rootAttrs = getAttributes(display, root.addr)
+      if rootAttrs.isSome:
+        let struts = display.calculateStruts
+        let screenHeight = rootAttrs.get.height
+        let screenWidth = rootAttrs.get.width
+
+        let winAttrs : Option[TXWindowAttributes] = getAttributes(display, ev.xcreatewindow.window.addr)
+
+        let depth = winAttrs.get.borderWidth.cuint
+        let borderWidth = winAttrs.get.depth.cuint
+
+        if winAttrs.isSome and winAttrs.get.overrideRedirect == 0:
+          discard XMoveResizeWindow(display,
+                                    ev.xcreatewindow.window,
+                                    0, struts.top.cint,
+                                    screenWidth.cuint, screenHeight.cuint - struts.bottom.cuint - borderWidth.cuint)
+
+    elif (ev.theType == MapNotify) and (ev.xmap.overrideRedirect == 0):
+      discard display.XSetInputFocus(ev.xmap.window, RevertToPointerRoot, CurrentTime)
+
     elif (ev.theType == MotionNotify) and (start.subWindow != None):
 
       # Discard any following MotionNotify events