Xdotool Control

xdotool-control

Automate mouse, keyboard, and window operations on the Linux desktop. Primary use: clicking Chrome extension icons, interacting with GUI apps when browser CDP isn't connected.

Quick Start

# Find a window
xdotool search --name "Google Chrome"

# Click at screen coordinates
xdotool mousemove 1800 56 click 1

# Type text into focused window
xdotool type "hello world"

# Screenshot current state
scrot /tmp/snap.png

Core Patterns

1. Find + Focus + Click

# Find Chrome window, focus it, click at position
WIN=$(xdotool search --name "Google Chrome" | head -1)
xdotool windowactivate --sync "$WIN"
sleep 0.3
xdotool mousemove X Y click 1

2. Screenshot → Verify → Click Loop

Use this when you need to click an element but don't know its exact position:

bash ~/.openclaw/workspace/skills/xdotool-control/scripts/snap_verify_click.sh \
  "Google Chrome" \    # Window name pattern
  "extension_icon" \   # What to look for (label for your snap files)
  1830 56              # Coordinates to click

Or use the full loop script for unknown positions:

bash ~/.openclaw/workspace/skills/xdotool-control/scripts/find_and_click.sh \
  "Google Chrome" \
  /tmp/target_icon.png \  # Template image to match (ImageMagick compare)
  10                       # Max attempts

3. Click Chrome Extension Icon

bash ~/.openclaw/workspace/skills/xdotool-control/scripts/click_extension.sh "OpenClaw"
# or
bash ~/.openclaw/workspace/skills/xdotool-control/scripts/click_extension.sh "Dawn"

This focuses Chrome and clicks the extensions puzzle-piece area, then scans for the named extension.

4. Tab Switching

# Switch to next tab
WIN=$(xdotool search --name "Google Chrome" | head -1)
xdotool windowactivate --sync "$WIN"
xdotool key ctrl+Tab

# Switch to specific tab (1-indexed)
xdotool key ctrl+2   # Tab 2
xdotool key ctrl+3   # Tab 3

# Open new tab
xdotool key ctrl+t

# Type a URL into address bar
xdotool key ctrl+l
sleep 0.2
xdotool type "https://example.com"
xdotool key Return

5. Type Into Window

WIN=$(xdotool search --name "Terminal" | head -1)
xdotool windowactivate --sync "$WIN"
sleep 0.2
xdotool type --clearmodifiers "command to type here"
xdotool key Return

6. Approve tmux Prompt (for Clawdy daemon)

SESSION=$(tmux ls | grep claude-session | head -1 | cut -d: -f1)
tmux send-keys -t "$SESSION" "Yes" Enter

Window Management

# List all windows with names
xdotool search --name "" | while read wid; do
  name=$(xdotool getwindowname "$wid" 2>/dev/null)
  [ -n "$name" ] && echo "$wid $name"
done | head -20

# Get window geometry (position + size)
xdotool getwindowgeometry $WIN_ID

# Move window to front
xdotool windowraise $WIN_ID

# Resize window
xdotool windowsize $WIN_ID 1280 800

# Move window
xdotool windowmove $WIN_ID 0 0

Screenshot Utilities

# Full desktop screenshot
scrot /tmp/desktop.png

# Specific window
scrot -u /tmp/active_window.png  # Currently active window

# Crop a region (x,y,width,height)
scrot -a 1400,0,480,60 /tmp/toolbar.png

# With delay
scrot -d 2 /tmp/delayed.png

Read screenshots with Claude's Read tool — it renders images inline.

Chrome-Specific Patterns

# Chrome toolbar extension icons are typically at:
# y ≈ 56 (vertical center of toolbar)
# x varies by number of pinned extensions, roughly:
#   Last icon:       screen_width - 30
#   Second-to-last:  screen_width - 60
#   Puzzle piece:    screen_width - 90 (unpinned extensions menu)

Clicking a Pinned Extension Icon

# Always auto-detect screen width — never hardcode
read SCREEN_W SCREEN_H <<< $(xdotool getdisplaygeometry)
TOOLBAR_Y=56

# Take a toolbar snapshot first to verify positions
scrot -a "$((SCREEN_W-300)),0,300,70" /tmp/toolbar_snap.png
# Read /tmp/toolbar_snap.png to see icon positions visually

# Then click
xdotool mousemove $((SCREEN_W - 60)) $TOOLBAR_Y click 1

Dependencies

# Required
sudo apt-get install xdotool scrot

# Optional — enables template matching in find_and_click.sh
sudo apt-get install imagemagick

# Check all deps at once:
for dep in xdotool scrot convert; do
  command -v "$dep" &>/dev/null && echo "✓ $dep" || echo "✗ $dep (missing)"
done

Tips & Gotchas

• Always windowactivate --sync before clicking — without --sync, the click may fire before focus lands
• Add sleep 0.3 after focus change before interacting with Chrome
• Coordinates are screen-absolute, not window-relative — factor in window position from getwindowgeometry
• xdotool type vs xdotool key: use type for text strings, key for special keys (ctrl+t, Return, Escape)
• --clearmodifiers on type prevents Shift/Ctrl state from leaking into typed text
• scrot -u captures only the currently active window — make sure to activate the right window first
• ImageMagick compare can do pixel-level template matching for verify loops (see find_and_click.sh)