xsecurelock: replace i3lock

Currently, there is nothing "new". But I plan to do more at some point.

README.md

@@ -16,11 +16,11 @@ Here some of the things you may be interested in:
    the wallpaper per screen and therefore, the script may seem a bit
    useless but I keep it.
 
- - I am using `xss-lock` with `i3lock` as a screensaver. It relies on
+ - I am using `xss-lock` with `xsecurelock` as a screensaver. It
-   standard X screensaver handling (and therefore is easy for
+   relies on standard X screensaver handling (and therefore is easy
-   application to disable) and also supports systemd
+   for application to disable) and also supports systemd inhibitors.
-   inhibitors. Nothing fancy but I reuse the wallpaper built above. A
+   Nothing fancy but I reuse the wallpaper built above. A notification
-   notification is sent 10 seconds before starting.
+   is sent 10 seconds before starting.
 
  - There is an `i3-companion` (in `bin/`) which I use to implement
    whatever does not match what I want in i3. I prefer to not have

bin/xsecurelock-saver

@@ -0,0 +1,71 @@
+#!/usr/bin/python3
+
+"""Saver module for xsecurelock.
+
+It displays a background image, clock and weather. Configuration is
+done through environment variables:
+
+ - XSECURELOCK_BACKGROUND_IMAGE: path to the background image to use
+
+"""
+
+import os
+import gi
+
+gi.require_version("Gtk", "3.0")
+from gi.repository import Gtk, Gdk, GdkX11, GLib, GdkPixbuf
+import cairo
+
+
+def on_win_realize(widget, position):
+    """On realization, embed into XSCREENSAVER_WINDOW and remember parent position."""
+    parent_wid = int(os.getenv("XSCREENSAVER_WINDOW", 0))
+    if not parent_wid:
+        return
+    parent = GdkX11.X11Window.foreign_new_for_display(widget.get_display(), parent_wid)
+    x, y, w, h = parent.get_geometry()
+    window = widget.get_window()
+    window.resize(w, h)
+    window.reparent(parent, 0, 0)
+    [*position] = x, y
+
+
+def on_win_draw(widget, ctx, background, position):
+    """Draw background image."""
+    ctx.set_operator(cairo.OPERATOR_SOURCE)
+    if not background:
+        ctx.set_source_rgba(0, 0, 0, opacity)
+        ctx.paint()
+        return
+
+    x, y = position
+    wwidth, wheight = widget.get_size()
+    scale = widget.get_scale_factor()
+    bg = background.new_subpixbuf(x * scale, y * scale, wwidth * scale, wheight * scale)
+    ctx.scale(1 / scale, 1 / scale)
+    Gdk.cairo_set_source_pixbuf(ctx, bg, 0, 0)
+    ctx.paint()
+
+
+if __name__ == "__main__":
+    background_image = os.getenv("XSECURELOCK_BACKGROUND_IMAGE", None)
+
+    background = None
+    if background_image:
+        try:
+            background = GdkPixbuf.Pixbuf.new_from_file(background_image)
+        except Exception:
+            pass
+    position = [0, 0]
+
+    window = Gtk.Window()
+    window.set_app_paintable(True)
+    window.set_visual(window.get_screen().get_rgba_visual())
+    window.connect("realize", on_win_realize, position)
+    window.connect("draw", on_win_draw, background, position)
+    window.connect("delete-event", Gtk.main_quit)
+
+    window.show_all()
+
+    # Main loop
+    Gtk.main()

bin/xss-dimmer

@@ -134,7 +134,7 @@ if __name__ == "__main__":
     add("--step", type=float, default=0.1, help="step for changing opacity")
     add("--delay", type=float, default=10, help="delay from start to end")
     add("--font", default="DejaVu Sans", help="font for countdown")
-    add("--locker", default="i3lock", help="quit if window class detected")
+    add("--locker", default="xsecurelock", help="quit if window class detected")
     add("--background", help="use a background instead of black")
     add(
         "--easing-function",

bin/xss-lock

@@ -34,11 +34,11 @@ case "$1" in
         playerctl -a pause
         dunstctl set-paused true
         # Then, lock screen
-        i3lock -n -e -i $XDG_RUNTIME_DIR/i3/current-wallpaper.png -t -f
+        env XSECURELOCK_SAVER=$HOME/.config/i3/bin/xsecurelock-saver \
-        # Alternative if we prefer videos:
+            XSECURELOCK_NO_XRANDR15=1 \
-        # XSECURELOCK_SAVER=saver_mpv
+            XSECURELOCK_BACKGROUND_IMAGE=$XDG_RUNTIME_DIR/i3/current-wallpaper.png \
-        # XSECURELOCK_LIST_VIDEOS_COMMAND="ls -1 ~/.config/i3/wallpapers/*.mp4"
+            XSECURELOCK_FONT="Iosevka" \
-        # xsecurelock
+            xsecurelock
         echo "lock: unlock screen"
         # After unlocking screen, stop dimmer, restore notifications
         dimmer stop