# HG changeset patch
# User Aleksej Bobylev <al.bobylev@gmail.com>
# Date 1440967597 -10800
# Node ID 082b622cb7819eb45981557f6d95cd480f2ef52d
# Parent  34508d2309a6becf533b5c1eb0d63b70b1d8db37
Speed-up interface: cache xhtml header; need to use 'tazpanel cc' to clean cache when TazPanel menu changes (in post-install and post-remove functions for TazPanel modules)

diff -r 34508d2309a6 -r 082b622cb781 Makefile
--- a/Makefile	Sun Aug 30 23:04:04 2015 +0300
+++ b/Makefile	Sun Aug 30 23:46:37 2015 +0300
@@ -79,6 +79,10 @@
 	mkdir -p $(DESTDIR)/usr/share/fonts/TTF
 	ln -fs $(PANEL)/styles/default/tazpanel.ttf $(DESTDIR)/usr/share/fonts/TTF/tazpanel.ttf
 
+	# TazPanel cache directory, rw access for all
+	install -m 0777 -d $(DESTDIR)/var/cache/tazpanel
+
+
 install_extra:
 	mkdir -p \
 		$(DESTDIR)$(PANEL)/menu.d/boot \
diff -r 34508d2309a6 -r 082b622cb781 lib/libtazpanel
--- a/lib/libtazpanel	Sun Aug 30 23:04:04 2015 +0300
+++ b/lib/libtazpanel	Sun Aug 30 23:46:37 2015 +0300
@@ -255,14 +255,23 @@
 
 xhtml_header() {
 	[ -n "$(GET noheader)" ] && return
-	SUBTITLE="$1"
-	. ${PANEL}$HEADER
-	cat <<EOT
+
+	local subtitle="$1" header="/var/cache/tazpanel/header.$(id -un)"
+
+	# Cache header
+	if [ ! -f "$header" ]; then
+		SUBTITLE='@@SUBTITLE@@'
+		. ${PANEL}$HEADER > "$header"
+		cat >> "$header" <<EOT
 <script type="text/javascript">
 	document.cookie = "guiuser=; expires=Thu, 01 Jan 1970 00:00:00 UTC";
 	document.cookie = "guiuser=$GUI_USER";
 </script>
 EOT
+	fi
+	sed "s|@@SUBTITLE@@|$subtitle|" "$header"
+
+	# Show debug output
 	if [ "$DEBUG" -eq 1 ]; then
 		local i j x
 		args=''
@@ -293,6 +302,7 @@
 
 xhtml_footer() {
 	[ -n "$(GET noheader)" ] && return
+
 	export TEXTDOMAIN='tazpkg'
 	. ${PANEL}$FOOTER
 }
diff -r 34508d2309a6 -r 082b622cb781 styles/default/header.html
--- a/styles/default/header.html	Sun Aug 30 23:04:04 2015 +0300
+++ b/styles/default/header.html	Sun Aug 30 23:46:37 2015 +0300
@@ -1,6 +1,6 @@
 # Header of TazPanel html page
 
-rootclass='user'; [ $(id -u) == '0' ] && rootclass='root'
+rootclass='user'; [ $(id -u) -eq 0 ] && rootclass='root'
 TEXTDOMAIN_original="${TEXTDOMAIN:-tazpanel}"
 export TEXTDOMAIN='tazpanel'
 
diff -r 34508d2309a6 -r 082b622cb781 tazpanel
--- a/tazpanel	Sun Aug 30 23:04:04 2015 +0300
+++ b/tazpanel	Sun Aug 30 23:46:37 2015 +0300
@@ -46,6 +46,7 @@
            boot, hardware, help, index, installer, live, network, settings, pkgs
            If <app> is empty, index page will open in the browser.
            You can also open sub-pages, so "pkgs#list" will open packages list.
+  cc       Clean cache: remove interface's header from cache
 
 EOT
 		;;
@@ -72,6 +73,8 @@
 		status ;;
 	restart)
 		tazpanel stop; sleep 1; tazpanel start;;
+	cc)
+		find /var/cache/tazpanel -name 'header.*' -delete;;
 	*)
 		. /etc/slitaz/applications.conf
 		USER_CONFIG="$HOME/.config/slitaz/applications.conf"