# @ECLASS-VARIABLE: MOZ_MOZILLAS

# @DESCRIPTION:

# If this variables is set to the empty value, no default install functions

# are defined. Otherwise, the value of this variable should be

# "conkeror firefox seamonkey" (default)

# or a subset of these.

# The eclass will then install the extension for all these mozillas,

# set corresponding dependencies and print corresponding messages.

: ${MOZ_MOZILLAS=conkeror firefox seamonkey}

[ -n "${RDEPEND}" ] && DEPEND="${DEPEND}

${RDEPEND}"

[ "${MOZ_EXTDIR}" = '*' ] || IUSE='copy-extensions symlink-extensions'

mozextension_src_unpack() {

	local i

	if [ -z "${FILENAME}" ]

	then	for i in ${SRC_URI}

		do	FILENAME=${i##*/}

		done

	fi

	xpi_unpack "${FILENAME}"

}

mozextension_src_prepare() {

	epatch_user

}

EXPORT_FUNCTIONS src_unpack src_prepare

declare -a MOZ_INS MOZ_PKG MOZ_CPY MOZ_DIR

mozextension_install() {

	local MOZILLA_EXTENSIONS_DIRECTORY

	MOZILLA_EXTENSIONS_DIRECTORY=${1}

	MOZ_INS=()

	xpi_install_dirs

}

mozextension_calc() {

	local v

	case ${MOZ_MOZILLAS} in

	${1})

		false;;

	esac && return

	v=`best_version "${2}"` && [ -n "${v}" ] || return

	MOZ_PKG+=("${v}")

	MOZ_DIR+=("${3}")

}

mozextension_src_install() {

	local b d e i j k l s

	MOZ_PKG=()

	MOZ_DIR=()

	b="${EPREFIX%/}/usr/`get_libdir`/"

	e="${EPREFIX%/}/opt/"

	mozextension_calc '*fire*' 'www-client/firefox' "${b}firefox"

	mozextension_calc '*fire*' 'www-client/firefox-bin' "${e}firefox"

	mozextension_calc '*sea*' 'www-client/seamonkey' "${b}seamonkey"

	mozextension_calc '*sea*' 'www-client/seamonkey-bin' "${e}seamonkey"

	mozextension_calc '*conkeror*' 'www-client/conkeror' "/usr/share/conkeror"

	[ ${#MOZ_DIR[@]} -ne 0 ] || die 'no supported mozilla is installed'

	d=${MOZ_EXTDIR}

	if [ "${d}" = '?' ]

	then	if [ ${#MOZ_PKG[@]} -gt 1 ]

		then	d=''

		else	d='*'

		fi

	fi

	MOZ_SYM=()

	MOZ_LNK=false

	if [ "${d}" = '*' ] || ! use symlink-extensions

	then	MOZ_CPY=:

	else	MOZ_CPY=false

		if [ -n "${d}" ]

		then	mozextension_install "${d}"

		else	mozextension_install "${b}mozilla/extensions"

		fi

	fi

	use copy-extensions || MOZ_LNK=:

	for i in "${MOZ_DIR[@]}"

	do	j="${i}/extensions"

		${MOZ_CPY} && mozextension_install "${j}"

		for k in "${MOZ_INS[@]}"

		do	l="${j}/${k##*/}"

			MOZ_SYM+=("${l}")

			${MOZ_CPY} || dosym "${ROOT%/}${k}" "${l}"

		done

	done

}

mozextension_pkg_preinst() {

	local i j

	einfo 'checking for switching between dirs and symlinks'

	for i in "${MOZ_SYM[@]}"

	do	j=${ROOT%/}${i}

# There are two forms of installation:

# (1) symlink mozilla-dir/extensions/X -> $MOZILLA_EXTENSIONS_DIRECTORY/X

# (2) data in mozilla-dir/extensions/X

# Since we might switch between (1) and (2), we must take caution, since

# in general portage cannot merge into the live directory properly:

		if ${MOZ_CPY}

		then	test -L "${j}" && {

# We switched from (1) to (2). If this happened, portage would

# actually merge the data of (2) into $MOZILLA_EXTENSIONS_DIRECTORY/X,

# since this is where the symlink from (1) points to.

# Hence, we have to remove this symlink in advance, in this case.

			rm -v -- "${j}"

		}

		else	test -d "${j}" && ! test -L "${j}" && {

# We switched from (2) to (1). If this happened, portage cannot

# merge the symlink to the live system, since this can only happen once

# the directory mozilla-dir/extensions/X is removed.

# We could remove this directory here.

# However, removing a directory is a dangerous thing, and so

# we prefer to tell the user only that he has to reemerge the package.

			eerror

			eerror "It is necessary to reemerge again ${CATEGORY}/${PN}"

			eerror '(a directory should be removed in the cleanup after the first emerge'

			eerror 'in order to install a symlink of the same name in the second emerge.)'

			eerror

			break

		}

		fi

	done

}

mozextension_pkg_postinst() {

	local i

	[ "${#MOZ_PKG[@]}" -ge 1 ] || die 'no supported mozilla is installed'

	elog "${CATEGORY}/${PN} has been installed for the following packages:"

	for i in ${MOZ_PKG[@]}

	do	elog "	${i}"

	done

	elog "When you install/uninstall/reemerge some of: ${MOZ_MOZILLAS}"

	elog "you might need to reemerge ${CATEGORY}/${PN}"

	${MOZ_CPY} || {

		elog

		elog 'The extension was installed using symlinks. This saves space but may require'

		elog 'to remove ~/.mozilla/*/*/extensions.ini for each browser restart.'

	}

}

if [ -n "${MOZ_MOZILLAS}" ]

then	EXPORT_FUNCTIONS src_install pkg_preinst pkg_postinst

fi