1 files changed, 90 insertions, 0 deletions
diff --git a/xpybar/config/adjbacklight b/xpybar/config/adjbacklight
new file mode 100644
index 0000000..a480262
--- /dev/null
+++ b/xpybar/config/adjbacklight
@@ -0,0 +1,90 @@
+# -*- python -*-
+import os
+import sys
+import time
+
+OUTPUT, HEIGHT, YPOS, TOP = 0, 2 * 12, 0, True
+
+LEFT_BUTTON = 1
+MIDDLE_BUTTON = 2
+RIGHT_BUTTON = 3
+SCROLL_UP = 4
+SCROLL_DOWN = 5
+SCROLL_LEFT = 6
+SCROLL_RIGHT = 7
+FORWARD_BUTTON = 8                                                                                                               
+BACKWARD_BUTTON = 9
+
+r, w = os.pipe()
+pid = os.fork()
+if not pid:
+    os.dup2(r, 0)
+    os.close(w)
+    os.execlp('adjbacklight', 'adjbacklight')
+    sys.exit(1)
+os.close(r)
+
+def get_backlight():
+    r, w = os.pipe()
+    pid = os.fork()
+    if not pid:
+        os.dup2(w, 1)
+        os.execlp('adjbacklight', 'adjbacklight', '-g')
+        sys.exit(1)
+    os.close(w)
+    ret = b''
+    while True:
+        bs = os.read(r, 512)
+        if not bs:
+            break
+        ret += bs
+    os.close(r)
+    os.waitpid(pid, 0)
+    ret = float(ret.decode('utf-8', 'replace').rstrip('%\n')) / 100
+    return ret
+
+def set_backlight():
+    if 0 <= backlight <= 1:
+        os.write(w, b'%f%%\n' % (backlight * 100))
+        time.sleep(0.0001)
+
+backlight = get_backlight()
+
+def redraw():
+    x = int(bar.width * backlight + 0.5)
+    bar.change_colour(bar.foreground)
+    bar.window.fill_rectangle(bar.gc, 0, 0, x, HEIGHT)
+    bar.change_colour(bar.background)
+    bar.window.fill_rectangle(bar.gc, x, 0, bar.width - x, HEIGHT)
+
+import x as _x
+_get_event_mask = _x.get_event_mask
+def get_event_mask():
+    return _get_event_mask() | Xlib.X.ButtonMotionMask
+_x.get_event_mask = get_event_mask
+
+def unhandled_event(e):
+    global backlight
+    if isinstance(e, Xlib.protocol.event.ButtonPress):
+        button, x = e.detail, e.event_x
+        if button == LEFT_BUTTON:
+            backlight = min(max(0, x / bar.width), 1)
+            set_backlight()
+            bar.invalidate()
+        elif button == SCROLL_UP:
+            backlight = min(backlight + 0.05, 1)
+            set_backlight()
+            bar.invalidate()
+        elif button == SCROLL_DOWN:
+            backlight = max(backlight - 0.05, 0)
+            set_backlight()
+            bar.invalidate()
+        elif button in (MIDDLE_BUTTON, RIGHT_BUTTON, FORWARD_BUTTON, BACKWARD_BUTTON):
+            os.close(w)
+            os.waitpid(pid, 0)
+            raise KeyboardInterrupt()
+    elif isinstance(e, Xlib.protocol.event.MotionNotify):
+        if e.detail == 0:
+            backlight = min(max(0, e.event_x / bar.width), 1)
+            set_backlight()
+            bar.invalidate()