--- trunk/webthumb	2004/07/26 06:48:59	1
+++ trunk/webthumb	2008/02/06 23:45:58	64
@@ -23,25 +23,56 @@
 # 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=800
-H=800
+W=1024
+H=768
 
-# and then resize it to
-RESIZE=200x
+# and then resize it to (comment out to disable)
+#RESIZE=200x
+
+# turn locally visible server to watch progress
+DEBUG=0
+test ! -z "$3" && DEBUG=1
+
+# wait for $WAIT seconds for page to load
+WAIT=30
 
 # some configurable paths
 BROWSER=mozilla-firefox
-XSERVER=vncserver
+XSERVER=Xvfb
 URL=$1
 FILE=${2:-screenshot.jpg}
 
 FRAMESET="`mktemp`.html"
+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 xdotool`" ] ; then
+	echo "$0 need xdotool from http://www.semicomplete.com/blog/projects/xdotool/"
+	exit 1
+fi
+
+if [ -z "`which $XSERVER`" ] ; then
+	echo "$0 really need $XSERVER to operate. please install it."
+	exit 1
+fi
+
+while netstat -ln | grep ":$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"
@@ -50,16 +81,41 @@
 	exit 1
 fi
 
-echo "starting vnc X server"
+DISPLAY_PORT=6042
 
-export DISPLAY=`$XSERVER -geometry ${W}x${H} -depth 24 2>&1 \
-	| grep : | head -1 | cut -d: -f2 | sed 's/^/:/'`
+while netstat -ln | grep ":$DISPLAY_PORT " >/dev/null ; do
+	DISPLAY_PORT=`expr $DISPLAY_PORT + 1`
+done
+
+DISPLAY=:`expr $DISPLAY_PORT - 6000`
+
+echo "using DISPLAY=$DISPLAY"
 
-function kill_vnc() {
-	vncserver -kill $DISPLAY
+if [ "$DEBUG" == 1 ] ; then
+	echo "using locally visible debug server on $LOCAL_DISPLAY"
+	DISPLAY=$LOCAL_DISPLAY Xephyr -ac -screen ${W}x${H}x24 $DISPLAY 2>/dev/null &
+else
+	echo "starting $XSERVER"
+	$XSERVER -ac -screen 0 ${W}x${H}x24 $DISPLAY 2>/dev/null &
+fi
+
+if [ -z "$!" ] ; then
+	echo "ABORT: can't start X server!"
+	exit
+fi
+XSERVER_PID=$!
+
+echo "X server pid $XSERVER_PID"
+
+function kill_x_server() {
+	echo "Killing server $XSERVER_PID"
+	kill $XSERVER_PID
 	rm -f $FRAMESET
+	rm -fr $PROFILE_DIR
+	trap '' EXIT
+	exit 1
 }
-trap 'echo "QUIT!" >&2; kill_vnc; 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
@@ -75,41 +131,70 @@
 
 echo "Using frameset html $FRAMESET"
 
-echo "preview available with: vncviewer $DISPLAY"
+echo "preview available with: xwd -display $DISPLAY -root | xwud"
 
-echo "making 'Screenshot' profile"
-$BROWSER -CreateProfile Screenshot | grep Success
+echo "making 'Screenshot' profile in $PROFILE_DIR"
+$BROWSER -CreateProfile "Screenshot $PROFILE_DIR" 2>/dev/null | grep Success
 
 echo "launching browser $BROWSER with $URL"
-$BROWSER -id Screenshot -P Screenshot -width $W -height $H $FRAMESET 2>&1 >/dev/null & 
+$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
+
+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 $RID
+			xdotool key Escape
+			sleep 1
+		fi
+		echo -n "."
+		sleep 1
+	done
+	echo " OK"
+}
+
+ping_browser
+
+$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 60sec for page to load and render
+# 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 60 -p $PORT >/dev/null
+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!"
 
 # get Mozilla Firefox window id (for resize)
-
-WINDOW_ID=`xwininfo -display $DISPLAY -name "Mozilla Firefox" | grep "Window id:" | cut -d" " -f4`
+WINDOW_ID=`xwininfo -display $DISPLAY -root -tree | grep gecko | cut -d\" -f1 | sort -n | head -1`
 
 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
 
+xdotool search firefox
 
-echo "resizing window $WINDOW_ID to maximum size"
-xwit -display $DISPLAY -id $WINDOW_ID -resize $W $H
+xdotool focus $WINDOW_ID
+xdotool key F11
 
-
-echo -n "wating for browser ping..."
-while ! ( $BROWSER -remote "ping();" 2>&1 ) >/dev/null ; do
-	echo -n "."
-	sleep 1
-done
-echo
+ping_browser
 
 # try to deduce inside area of window
 
@@ -121,7 +206,13 @@
 fi
 
 echo "saving window $DUMP_ID to $FILE"
-import -window $DUMP_ID -geometry $RESIZE $FILE
+if [ ! -z "$RESIZE" ] ; then
+	RESIZE="-geometry $RESIZE"
+fi
 
-kill_vnc
+import -window $DUMP_ID $RESIZE $FILE
 
+if [ "$DEBUG" == 1 ] ; then
+	echo -n "press enter to exit! "
+	read
+fi