--- trunk/webthumb	2008/02/06 19:48:56	60
+++ trunk/webthumb	2008/02/06 23:59:09	65
@@ -23,20 +23,31 @@
 # HEAD (part or LWP perl library, it can be commented out)
 # nc (netcat, to simulate web server)
 # xwininfo (standard part of X-clients)
-# xwit (not so standard command, but very useful)
 # import (part of ImageMagick package)
+# xdotool (much more useful than xwit for this purpose)
 #
 # It will create snapshot of following size
 W=1024
 H=768
+D=24
 
 # and then resize it to (comment out to disable)
 #RESIZE=200x
 
+# turn locally visible server to watch progress
+DEBUG=0
+if [ ! -z "$3" ] ; then
+	echo "DEBUG turned on"
+	DEBUG=1
+	D=8
+fi
+
+# wait for $WAIT seconds for page to load
+WAIT=30
+
 # some configurable paths
 BROWSER=mozilla-firefox
 XSERVER=Xvfb
-XWIT=xwit
 URL=$1
 FILE=${2:-screenshot.jpg}
 
@@ -44,13 +55,15 @@
 PROFILE_DIR=`mktemp -d`
 PORT=8888
 
+LOCAL_DISPLAY=$DISPLAY
+
 if [ -z "$URL" ] ; then
 	echo "usage: $0 http://url.to.capture [screenshot.jpg]"
 	exit 1
 fi
 
-if [ -z "`which $XWIT`" ] ; then
-	echo "$0 really need $XWIT to operate. please install it."
+if [ -z "`which xdotool`" ] ; then
+	echo "$0 need xdotool from http://www.semicomplete.com/blog/projects/xdotool/"
 	exit 1
 fi
 
@@ -59,6 +72,12 @@
 	exit 1
 fi
 
+while netstat -ln | grep ":$PORT " >/dev/null ; do
+	PORT=`expr $PORT + 1`
+done
+
+echo "### using port $PORT"
+
 echo -n "testing URL $URL "
 if HEAD $URL >/dev/null ; then
 	echo "ok"
@@ -67,24 +86,41 @@
 	exit 1
 fi
 
-echo "starting X server $XSERVER"
+DISPLAY_PORT=6042
+
+while netstat -ln | grep ":$DISPLAY_PORT " >/dev/null ; do
+	DISPLAY_PORT=`expr $DISPLAY_PORT + 1`
+done
+
+DISPLAY=:`expr $DISPLAY_PORT - 6000`
 
-export DISPLAY=:42
+echo "using DISPLAY=$DISPLAY"
 
-$XSERVER -ac -screen 0 ${W}x${H}x24 $DISPLAY &
-# debug server
-#Xnest -display :0 -ac -geometry ${W}x${H} -depth 24 $DISPLAY &
+if [ "$DEBUG" == 1 ] ; then
+	echo "using locally visible debug server on $LOCAL_DISPLAY"
+	DISPLAY=$LOCAL_DISPLAY Xephyr -ac -screen ${W}x${H}x${D} $DISPLAY 2>/dev/null &
+else
+	echo "starting $XSERVER"
+	$XSERVER -ac -screen 0 ${W}x${H}x${D} $DISPLAY 2>/dev/null &
+fi
 
+if [ -z "$!" ] ; then
+	echo "ABORT: can't start X server!"
+	exit
+fi
 XSERVER_PID=$!
-echo "using pid $xserver_pid for X server"
+
+echo "X server pid $XSERVER_PID"
 
 function kill_x_server() {
-	kill $BROWSER_PID
+	echo "Killing server $XSERVER_PID"
 	kill $XSERVER_PID
 	rm -f $FRAMESET
 	rm -fr $PROFILE_DIR
+	trap '' EXIT
+	exit 1
 }
-trap 'echo "QUIT!" >&2; kill_x_server; exit 1' INT QUIT TERM SEGV
+trap 'kill_x_server' INT QUIT TERM SEGV EXIT
 
 # create frameset to load site and after site is loaded trigger this script
 cat > $FRAMESET <<END_OF_FRAMESET
@@ -103,18 +139,41 @@
 echo "preview available with: xwd -display $DISPLAY -root | xwud"
 
 echo "making 'Screenshot' profile in $PROFILE_DIR"
-$BROWSER -CreateProfile "Screenshot $PROFILE_DIR" | grep Success
+$BROWSER -CreateProfile "Screenshot $PROFILE_DIR" 2>/dev/null | grep Success
 
 echo "launching browser $BROWSER with $URL"
-$BROWSER -P Screenshot -width $W -height $H $FRAMESET &
+$BROWSER -P Screenshot -width $W -height $H -safemode $FRAMESET 2>/dev/null &
 BROWSER_PID=$!
 
-echo "staring web server (wait for page to load)"
+function kill_browser() {
+	echo "Killing browser $BROWSER_PID"
+	kill $BROWSER_PID
+	echo "Killing server $XSERVER_PID"
+	kill $XSERVER_PID
+	rm -f $FRAMESET
+	rm -fr $PROFILE_DIR
+	trap '' EXIT
+	exit 1
+}
+trap 'kill_browser' INT QUIT TERM SEGV EXIT
 
-# there is hard-coded limit here:
-# we will wait 60sec for page to load and render
+function ping_browser() {
+	echo -n "ping browser"
+	while ! ( $BROWSER -remote "ping();" 2>&1 ) >/dev/null ; do
+		RID=`xdotool search Restore 2>/dev/null`
+		if [ ! -z "$RID" ] ; then
+			echo -n "Esc"
+			xdotool focus $RID
+			xdotool key Escape
+			sleep 1
+		fi
+		echo -n "."
+		sleep 1
+	done
+	echo " OK"
+}
 
-echo -e "HTTP/1.0 304 Not modified\r\n\r\n" | nc -l -w 60 -p $PORT >/dev/null
+ping_browser
 
 # get Mozilla Firefox window id (for resize)
 WINDOW_ID=`xwininfo -display $DISPLAY -root -tree | grep gecko | cut -d\" -f1 | sort -n | head -1`
@@ -122,22 +181,25 @@
 if [ -z "$WINDOW_ID" ] ; then
 	echo "can't find window with name 'Mozilla Firefox'"
 	exit 1
+else
+	echo "working on firefox window $WINDOW_ID"
 fi
 
-# move window to foreground
-$XWIT -display $DISPLAY -id $WINDOW_ID -pop
+xdotool search firefox
 
-echo "resizing window $WINDOW_ID to maximum size"
-$XWIT -display $DISPLAY -id $WINDOW_ID -move 0 0
-$XWIT -display $DISPLAY -id $WINDOW_ID -resize $W $H
+xdotool focus $WINDOW_ID
+xdotool key F11
 
+ping_browser
 
-echo -n "wating for browser ping..."
-while ! ( $BROWSER -remote "ping();" 2>&1 ) >/dev/null ; do
-	echo -n "."
-	sleep 1
-done
-echo
+$BROWSER -remote "openURL($FRAMESET)" 2>/dev/null
+
+echo "waiting for on_load event from browser $BROWSER_PID for ${WAIT}s"
+
+# there is hard-coded limit here:
+# we will wait $WAIT sec for page to load and render
+
+echo -e "HTTP/1.0 304 Not modified\r\n\r\n" | nc -l -w $WAIT -p $PORT >/dev/null || echo "Timeout after $WAIT sec!"
 
 # try to deduce inside area of window
 
@@ -155,5 +217,7 @@
 
 import -window $DUMP_ID $RESIZE $FILE
 
-kill_x_server
-
+if [ "$DEBUG" == 1 ] ; then
+	echo -n "press enter to exit! "
+	read
+fi