From 74e621236aec7ab84f6d25cac373184fefb8d184 Mon Sep 17 00:00:00 2001
From: Johannes Bensmann <johannesbensmann@gmx.de>
Date: Sat, 8 Jun 2019 18:09:21 +0200
Subject: some code cleanup

---
 xmouseless.c | 161 +++++++++++++++++++++++++++++++----------------------------
 1 file changed, 85 insertions(+), 76 deletions(-)

diff --git a/xmouseless.c b/xmouseless.c
index 486d05c..ae42741 100644
--- a/xmouseless.c
+++ b/xmouseless.c
@@ -1,5 +1,5 @@
 /*
-        gcc xmouseless.c -o xmouseless -lX11 -lpthread -lXtst
+    gcc xmouseless.c -o xmouseless -lX11 -lpthread -lXtst
 */
 #include <stdio.h>
 #include <stdlib.h>
@@ -27,10 +27,22 @@ struct {
     int movey;
 } mouseinfo;
 
+
+int getrootptr(int *x, int *y);
+void moverelative(int x, int y);
+void click(int button, int is_press);
+void handle_keypress(XKeyEvent event);
+void handle_keyrelease(XKeyEvent event);
 void init_x();
 void close_x();
-void redraw();
-int getrootptr(int *x, int *y);
+
+
+int getrootptr(int *x, int *y) {
+    int di;
+    unsigned int dui;
+    Window dummy;
+    return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
+}
 
 void moverelative(int x, int y) {
     mouseinfo.x += x;
@@ -39,6 +51,11 @@ void moverelative(int x, int y) {
     XFlush(dpy);
 }
 
+void click(int button, int is_press) {
+    XTestFakeButtonEvent(dpy, button, is_press, 0);
+    XFlush(dpy);
+}
+
 void init_x() {
     dpy=XOpenDisplay((char *)0);
     screen=DefaultScreen(dpy);
@@ -46,40 +63,82 @@ void init_x() {
 
     XGrabKeyboard(dpy, root, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 
-    /* XGrabKey(dpy, XKeysymToKeycode(dpy, XK_Q), 0, root, False, GrabModeAsync, GrabModeAsync); */
-    /* XGrabKey(dpy, XKeysymToKeycode(dpy, XK_Alt_L), AnyModifier, root, False, GrabModeAsync, GrabModeAsync); */
-
+    /* turn auto repeat of key off */
     XAutoRepeatOff(dpy);
 }
 
 void close_x() {
+    /* turn auto repeat on again */
     XAutoRepeatOn(dpy);
     XCloseDisplay(dpy);
 }
 
-int getrootptr(int *x, int *y) {
-    int di;
-    unsigned int dui;
-    Window dummy;
-
-    return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
-}
-
-void click(int button, int is_press) {
-    XTestFakeButtonEvent(dpy, button, is_press, 0);
-    XFlush(dpy);
-}
-
 void *moveforever(void *val) {
+    /* this is executed in a thread */
     while (1) {
         if (mouseinfo.movex != 0 || mouseinfo.movey != 0) {
             moverelative(SPEED * mouseinfo.movex, SPEED * mouseinfo.movey);
-            /* printf("%i, %i\n", mouseinfo.x, mouseinfo.y); */
         }
         usleep(1000000 / MOVE_RATE);
     }
 }
 
+void handle_keypress(XKeyEvent event) {
+    if (event.keycode == 24 || event.keycode == 0x09) {
+        close_x();
+        exit(0);
+    }
+    else if (event.keycode == 45) {
+        mouseinfo.movex = 0;
+        mouseinfo.movey = 0;
+    }
+    else if (event.keycode == 44) {
+        mouseinfo.movex -= 1;
+    }
+    else if (event.keycode == 46) {
+        mouseinfo.movex += 1;
+    }
+    else if (event.keycode == 31) {
+        mouseinfo.movey -= 1;
+    }
+    else if (event.keycode == 59) {
+        mouseinfo.movey += 1;
+    }
+    else if (event.keycode == 64) {
+        SPEED = 40;
+    }
+    else if (event.keycode == 41) {
+        click(1, True);
+    }
+    else if (event.keycode == 39) {
+        click(3, True);
+    }
+}
+
+void handle_keyrelease(XKeyEvent event) {
+    if (event.keycode == 44) {
+        mouseinfo.movex += 1;
+    }
+    else if (event.keycode == 46) {
+        mouseinfo.movex -= 1;
+    }
+    else if (event.keycode == 31) {
+        mouseinfo.movey += 1;
+    }
+    else if (event.keycode == 59) {
+        mouseinfo.movey -= 1;
+    }
+    else if (event.keycode == 64) {
+        SPEED = 10;
+    }
+    else if (event.keycode == 41) {
+        click(1, False);
+    }
+    else if (event.keycode == 39) {
+        click(3, False);
+    }
+}
+
 int main () {
     int rc;
     XEvent event;
@@ -103,65 +162,15 @@ int main () {
         switch (event.type) {
             case KeyPress:
                 getrootptr(&mouseinfo.x, &mouseinfo.y);
+                printf("You pressed %i\n", event.xkey.keycode);
 
-                printf("You pressed the %i key at %i, %i\n",
-                        event.xkey.keycode, event.xkey.x, event.xkey.y);
-
-                if (event.xkey.keycode == 24 || event.xkey.keycode == 0x09) {
-                    close_x();
-                    return 0;
-                }
-                else if (event.xkey.keycode == 45) {
-                    mouseinfo.movex = 0;
-                    mouseinfo.movey = 0;
-                }
-                else if (event.xkey.keycode == 44) {
-                    mouseinfo.movex -= 1;
-                }
-                else if (event.xkey.keycode == 46) {
-                    mouseinfo.movex += 1;
-                }
-                else if (event.xkey.keycode == 31) {
-                    mouseinfo.movey -= 1;
-                }
-                else if (event.xkey.keycode == 59) {
-                    mouseinfo.movey += 1;
-                }
-                else if (event.xkey.keycode == 64) {
-                    SPEED = 40;
-                }
-                else if (event.xkey.keycode == 41) {
-                    click(1, True);
-                }
-                else if (event.xkey.keycode == 39) {
-                    click(3, True);
-                }
+                handle_keypress(event.xkey);
                 break;
+
             case KeyRelease:
-                printf("You released the %i key at %i, %i\n",
-                        event.xkey.keycode, event.xkey.x, event.xkey.y);
-
-                if (event.xkey.keycode == 44) {
-                    mouseinfo.movex += 1;
-                }
-                else if (event.xkey.keycode == 46) {
-                    mouseinfo.movex -= 1;
-                }
-                else if (event.xkey.keycode == 31) {
-                    mouseinfo.movey += 1;
-                }
-                else if (event.xkey.keycode == 59) {
-                    mouseinfo.movey -= 1;
-                }
-                else if (event.xkey.keycode == 64) {
-                    SPEED = 10;
-                }
-                else if (event.xkey.keycode == 41) {
-                    click(1, False);
-                }
-                else if (event.xkey.keycode == 39) {
-                    click(3, False);
-                }
+                printf("You released %i\n", event.xkey.keycode);
+                
+                handle_keyrelease(event.xkey);
                 break;
         }
     }
-- 
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