[yocto] [libmatchbox][PATCH 4/4] Keep an internal copy of xsettings-client
Jussi Kukkonen
jussi.kukkonen at intel.com
Mon Jul 11 03:51:59 PDT 2016
xsettings-client code was meant to be a copy-and-paste module, not a
shared library. Grab a copy from
git://anongit.freedesktop.org/xdg/xdg-specs and include it in the
sources.
Remove the build complications: always build with xsettings.
The new files are MIT (old style) licensed: add a COPYING.MIT file.
Signed-off-by: Jussi Kukkonen <jussi.kukkonen at intel.com>
---
COPYING.MIT | 18 ++
configure.ac | 68 ------
libmb/Makefile.am | 8 +-
libmb/mbmenu.c | 9 -
libmb/mbmenu.h | 7 +-
libmb/mbtray.c | 61 +----
libmb/xsettings-client.c | 577 +++++++++++++++++++++++++++++++++++++++++++++++
libmb/xsettings-client.h | 72 ++++++
libmb/xsettings-common.c | 264 ++++++++++++++++++++++
libmb/xsettings-common.h | 110 +++++++++
10 files changed, 1049 insertions(+), 145 deletions(-)
create mode 100644 COPYING.MIT
create mode 100644 libmb/xsettings-client.c
create mode 100644 libmb/xsettings-client.h
create mode 100644 libmb/xsettings-common.c
create mode 100644 libmb/xsettings-common.h
diff --git a/COPYING.MIT b/COPYING.MIT
new file mode 100644
index 0000000..f7bdbba
--- /dev/null
+++ b/COPYING.MIT
@@ -0,0 +1,18 @@
+This license applies to libmb/xsettings-*:
+
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Red Hat not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. Red Hat makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ *
+ * RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL RED HAT
+ * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/configure.ac b/configure.ac
index 65d7c79..d369e2c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,7 +17,6 @@ SUPPORTS_PNG=0
SUPPORTS_JPEG=0
SUPPORTS_XFT=0
SUPPORTS_PANGO=0
-SUPPORTS_XSETTINGS=0
dnl ----- Args -------------------------------------------------------------
@@ -41,19 +40,6 @@ AC_ARG_ENABLE(doxygen-docs,
[ --enable-doxygen-docs build DOXYGEN API documentation (requires Doxygen)],
enable_doxygen_docs=$enableval,enable_doxygen_docs=no)
-AC_ARG_ENABLE(xsettings,
- [ --enable-xsettings enable xsettings client support],
- enable_xsettings=$enableval, enable_xsettings=no )
-
-AC_ARG_WITH(xsettings-includes,
- [ --with-xsettings-includes=DIR Use xsettings-client includes in DIR],
-
- xsettings_includes=$withval, xsettings_includes=yes)
-
-AC_ARG_WITH(xsettings-lib,
- [ --with-xsettings-lib=DIR Use xsettings-client library in DIR],
- xsettings_lib=$withval, xsettings_lib=yes)
-
AC_ARG_ENABLE(debug,
[ --enable-debug enable debug ( verbose ) build],
enable_debug=$enableval, enable_debug=no )
@@ -180,56 +166,6 @@ if test x$enable_jpeg != xno; then
fi
fi
-
-dnl ------ Check for XSettings ----------------------------------------------
-
-if test x$enable_xsettings != xno; then
- case "$xsettings_includes" in
- yes|no)
- XSET_CFLAGS=""
- ;;
- *)
- XSET_CFLAGS="-I$xsettings_includes"
- ;;
- esac
-
- case "$xsettings_lib" in
- yes)
- XSET_LIBS="-lXsettings-client"
- ;;
- *)
- XSET_LIBS="-L$xsettings_lib -lXsettings-client"
- ;;
- esac
-
- xsetsaved_CPPFLAGS="$CPPFLAGS"
- CPPFLAGS="$CPPFLAGS $XSET_CFLAGS $XLIBS_CFLAGS"
- xsetsaved_LIBS="$LIBS"
- LIBS="$LIBS $XSET_LIBS $XLIBS_LIBS"
-
- AC_CHECK_HEADER(xsettings-client.h, [ have_xset_h="yes" ], [ have_xset_h="no" ] )
-
- if test x$have_xset_h = xno; then
- AC_MSG_ERROR([cannot find Xsettings-client headers])
- fi
-
- AC_CHECK_LIB([Xsettings-client], [xsettings_client_new],
- [have_xset_libs="yes"], [ have_xset_libs="no"])
-
- if test x$have_xset_libs = x"no"; then
- AC_MSG_ERROR([cannot find Xsettings-client headers])
- fi
-
- CPPFLAGS="$xsetsaved_CPPFLAGS"
- LIBS="$xsetsaved_LIBS"
-
- MB_EXTRA_LIBS="$MB_EXTRA_LIBS $XSET_LIBS"
- MB_EXTRA_CFLAGS="$MB_EXTRA_CFLAGS $XSET_CFLAGS"
-
- AC_DEFINE(USE_XSETTINGS, [1], [Use XSettings Client])
-fi
-
-
dnl ------ Debug -----------------------------------------------------------
if test x$enable_debug != xno; then
@@ -310,9 +246,6 @@ AC_SUBST(JPEG_LIBS)
AC_SUBST(GCC_WARNINGS)
AC_SUBST(CHECK_CFLAGS)
-AC_SUBST(XSET_LIBS)
-AC_SUBST(XSET_CFLAGS)
-
AC_SUBST(MB_EXTRA_LIBS)
AC_SUBST(MB_EXTRA_CFLAGS)
AC_SUBST(XLIBS_REQUIRED)
@@ -380,7 +313,6 @@ echo "
Building with Pango: ${enable_pango}
Building with PNG: ${enable_png}
Building with JPG: ${enable_jpeg}
- Building with XSettings: ${enable_xsettings}
Building with API Documentation: ${enable_doxygen_docs}
"
diff --git a/libmb/Makefile.am b/libmb/Makefile.am
index 633d76e..f78aee0 100644
--- a/libmb/Makefile.am
+++ b/libmb/Makefile.am
@@ -6,6 +6,8 @@ source_h = mb.h \
mbutil.h \
mbexp.h \
mbconfig.h \
+ xsettings-client.h \
+ xsettings-common.h \
hash.h
source_c = mbmenu.c \
@@ -14,6 +16,8 @@ source_c = mbmenu.c \
mbpixbuf.c \
mbutil.c \
mbexp.c \
+ xsettings-client.c \
+ xsettings-common.c \
hash.c
DATADIR=$(datadir)
@@ -21,8 +25,8 @@ DATADIR=$(datadir)
lib_LTLIBRARIES = libmb.la
libmb_la_SOURCES = $(source_c) $(source_h)
-libmb_la_CPPFLAGS = -I$(top_srcdir) @GCC_WARNINGS@ @XLIBS_CFLAGS@ @PANGO_CFLAGS@ @PNG_CFLAGS@ @XSET_CFLAGS@ -DDATADIR=\"$(datadir)\"
-libmb_la_LIBADD = @XLIBS_LIBS@ @PANGO_LIBS@ @JPEG_LIBS@ @PNG_LIBS@ @XSET_LIBS@
+libmb_la_CPPFLAGS = -I$(top_srcdir) @GCC_WARNINGS@ @XLIBS_CFLAGS@ @PANGO_CFLAGS@ @PNG_CFLAGS@ -DDATADIR=\"$(datadir)\"
+libmb_la_LIBADD = @XLIBS_LIBS@ @PANGO_LIBS@ @JPEG_LIBS@ @PNG_LIBS@
# http://sources.redhat.com/autobook/autobook/autobook_91.html#SEC91
# current : revision : age
diff --git a/libmb/mbmenu.c b/libmb/mbmenu.c
index 6e35bed..286ea0b 100644
--- a/libmb/mbmenu.c
+++ b/libmb/mbmenu.c
@@ -71,7 +71,6 @@ static void remove_xmenus(MBMenu *mb,MBMenuMenu *active[]);
static void menu_set_theme_from_root_prop(MBMenu *mb);
-#ifdef USE_XSETTINGS
/*
Gtk/FontName
*/
@@ -131,8 +130,6 @@ mbmenu_xsettings_notify_cb (const char *name,
}
}
-#endif
-
MBMenu *
mb_menu_new(Display *dpy, int screen)
{
@@ -195,16 +192,12 @@ mb_menu_new(Display *dpy, int screen)
menu_set_theme_from_root_prop(mbmenu);
-#ifdef USE_XSETTINGS
-
/* This will trigger callbacks instantly so called last */
mbmenu->xsettings_client = xsettings_client_new(mbmenu->dpy, mbmenu->screen,
mbmenu_xsettings_notify_cb,
NULL,
(void *)mbmenu );
-#endif
-
return mbmenu;
}
@@ -786,10 +779,8 @@ mb_menu_handle_xevent(MBMenu *mb, XEvent *an_event)
return;
}
-#ifdef USE_XSETTINGS
if (mb->xsettings_client != NULL)
xsettings_client_process_event(mb->xsettings_client, an_event);
-#endif
if (an_event->type == PropertyNotify
&& an_event->xproperty.atom == mb->atom_mbtheme)
diff --git a/libmb/mbmenu.h b/libmb/mbmenu.h
index 1046464..1393ab2 100644
--- a/libmb/mbmenu.h
+++ b/libmb/mbmenu.h
@@ -42,10 +42,7 @@
#include <X11/keysym.h>
#include <X11/Xmd.h>
-#ifdef USE_XSETTINGS
-#include <xsettings-client.h>
-#endif
-
+#include <libmb/xsettings-client.h>
#include <libmb/mbpixbuf.h>
#include <libmb/mbexp.h>
@@ -261,9 +258,7 @@ typedef struct _mbmemu
struct _menu *keyboard_focus_menu;
-#ifdef USE_XSETTINGS
XSettingsClient *xsettings_client;
-#endif
} MBMenu;
diff --git a/libmb/mbtray.c b/libmb/mbtray.c
index 5c917fa..7207ea8 100644
--- a/libmb/mbtray.c
+++ b/libmb/mbtray.c
@@ -35,11 +35,9 @@
#endif
#include "mbtray.h"
+#include "xsettings-client.h"
#include <strings.h>
-#ifdef USE_XSETTINGS
-#include <xsettings-client.h>
-#endif
#define SYSTEM_TRAY_REQUEST_DOCK 0
#define SYSTEM_TRAY_BEGIN_MESSAGE 1
@@ -146,9 +144,7 @@ struct MBTrayApp
int tray_id;
-#ifdef USE_XSETTINGS
XSettingsClient *xsettings_client;
-#endif
char *theme_name;
@@ -161,14 +157,11 @@ struct MBTrayApp
MBPixbuf *pb_ext_ref; /* XXX should be considered unsafe */
};
-#ifdef USE_XSETTINGS
-
static void
_xsettings_notify_cb (const char *name,
XSettingsAction action,
XSettingsSetting *setting,
void *data);
-#endif
static int trapped_error_code = 0;
static int (*old_error_handler) (Display *d, XErrorEvent *e);
@@ -222,8 +215,6 @@ _get_server_time(Display* dpy)
}
}
-#ifdef USE_XSETTINGS
-
static void
_xsettings_notify_cb (const char *name,
XSettingsAction action,
@@ -257,8 +248,6 @@ _xsettings_notify_cb (const char *name,
}
-#endif
-
static Bool
get_xevent_timed( MBTrayApp* mb, XEvent* event_return )
{
@@ -749,43 +738,6 @@ tray_is_vertical_via_hint(MBTrayApp *mb)
}
static void
-set_theme_via_root_prop(MBTrayApp *mb)
-{
-#ifndef USE_XSETTINGS
- Atom realType;
- unsigned long n;
- unsigned long extra;
- int format;
- int status;
- char * value;
-
- status = XGetWindowProperty(mb->dpy, mb->win_root,
- mb->atoms[ATOM_MB_THEME],
- 0L, 512L, False,
- AnyPropertyType, &realType,
- &format, &n, &extra,
- (unsigned char **) &value);
-
- if (status != Success || value == 0 || *value == 0 || n == 0)
- {
- if (value) XFree(value);
- return;
- }
-
- if (mb->theme_name == NULL || strcmp(mb->theme_name, value))
- {
- if (mb->theme_name) free(mb->theme_name);
- mb->theme_name = strdup(value);
-
- if (mb->theme_cb)
- mb->theme_cb(mb, mb->theme_name);
-
- XFree(value);
- }
-#endif // USE_XSETTINGS
-}
-
-static void
handle_property(MBTrayApp *mb,
XPropertyEvent *event )
{
@@ -805,10 +757,6 @@ handle_property(MBTrayApp *mb,
mb->have_cached_bg = False;
handle_expose( mb, NULL );
}
- else if (event->atom == mb->atoms[ATOM_MB_THEME])
- {
- set_theme_via_root_prop(mb);
- }
}
static void
@@ -1322,12 +1270,9 @@ mb_tray_app_main_init ( MBTrayApp *mb ) /* XXX Figure out better name */
}
#endif
-#ifdef USE_XSETTINGS
-
mb->xsettings_client = xsettings_client_new(mb->dpy, mb->screen,
_xsettings_notify_cb,
NULL, (void *)mb );
-#endif
/* Set up standard hints */
@@ -1337,8 +1282,6 @@ mb_tray_app_main_init ( MBTrayApp *mb ) /* XXX Figure out better name */
XFlush (mb->dpy);
if (mb->win_tray) _init_docking (mb);
-
- set_theme_via_root_prop(mb);
}
void
@@ -1363,10 +1306,8 @@ mb_tray_handle_xevent(MBTrayApp *mb, XEvent *xevent)
if (mb->xevent_cb)
mb->xevent_cb (mb, xevent);
-#ifdef USE_XSETTINGS
if (mb->xsettings_client != NULL)
xsettings_client_process_event(mb->xsettings_client, xevent);
-#endif
switch (xevent->type)
{
diff --git a/libmb/xsettings-client.c b/libmb/xsettings-client.c
new file mode 100644
index 0000000..50c33ce
--- /dev/null
+++ b/libmb/xsettings-client.c
@@ -0,0 +1,577 @@
+/*
+ * Copyright © 2001 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Red Hat not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. Red Hat makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ *
+ * RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL RED HAT
+ * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author: Owen Taylor, Red Hat, Inc.
+ */
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <X11/Xlib.h>
+#include <X11/Xmd.h> /* For CARD16 */
+
+#include "xsettings-client.h"
+
+struct _XSettingsClient
+{
+ Display *display;
+ int screen;
+ XSettingsNotifyFunc notify;
+ XSettingsWatchFunc watch;
+ void *cb_data;
+
+ XSettingsGrabFunc grab;
+ XSettingsGrabFunc ungrab;
+
+ Window manager_window;
+ Atom manager_atom;
+ Atom selection_atom;
+ Atom xsettings_atom;
+
+ XSettingsList *settings;
+};
+
+static void
+notify_changes (XSettingsClient *client,
+ XSettingsList *old_list)
+{
+ XSettingsList *old_iter = old_list;
+ XSettingsList *new_iter = client->settings;
+
+ if (!client->notify)
+ return;
+
+ while (old_iter || new_iter)
+ {
+ int cmp;
+
+ if (old_iter && new_iter)
+ cmp = strcmp (old_iter->setting->name, new_iter->setting->name);
+ else if (old_iter)
+ cmp = -1;
+ else
+ cmp = 1;
+
+ if (cmp < 0)
+ {
+ client->notify (old_iter->setting->name,
+ XSETTINGS_ACTION_DELETED,
+ NULL,
+ client->cb_data);
+ }
+ else if (cmp == 0)
+ {
+ if (!xsettings_setting_equal (old_iter->setting,
+ new_iter->setting))
+ client->notify (old_iter->setting->name,
+ XSETTINGS_ACTION_CHANGED,
+ new_iter->setting,
+ client->cb_data);
+ }
+ else
+ {
+ client->notify (new_iter->setting->name,
+ XSETTINGS_ACTION_NEW,
+ new_iter->setting,
+ client->cb_data);
+ }
+
+ if (old_iter)
+ old_iter = old_iter->next;
+ if (new_iter)
+ new_iter = new_iter->next;
+ }
+}
+
+static int
+ignore_errors (Display *display, XErrorEvent *event)
+{
+ return True;
+}
+
+static char local_byte_order = '\0';
+
+#define BYTES_LEFT(buffer) ((buffer)->data + (buffer)->len - (buffer)->pos)
+
+static XSettingsResult
+fetch_card16 (XSettingsBuffer *buffer,
+ CARD16 *result)
+{
+ CARD16 x;
+
+ if (BYTES_LEFT (buffer) < 2)
+ return XSETTINGS_ACCESS;
+
+ x = *(CARD16 *)buffer->pos;
+ buffer->pos += 2;
+
+ if (buffer->byte_order == local_byte_order)
+ *result = x;
+ else
+ *result = (x << 8) | (x >> 8);
+
+ return XSETTINGS_SUCCESS;
+}
+
+static XSettingsResult
+fetch_ushort (XSettingsBuffer *buffer,
+ unsigned short *result)
+{
+ CARD16 x;
+ XSettingsResult r;
+
+ r = fetch_card16 (buffer, &x);
+ if (r == XSETTINGS_SUCCESS)
+ *result = x;
+
+ return r;
+}
+
+static XSettingsResult
+fetch_card32 (XSettingsBuffer *buffer,
+ CARD32 *result)
+{
+ CARD32 x;
+
+ if (BYTES_LEFT (buffer) < 4)
+ return XSETTINGS_ACCESS;
+
+ x = *(CARD32 *)buffer->pos;
+ buffer->pos += 4;
+
+ if (buffer->byte_order == local_byte_order)
+ *result = x;
+ else
+ *result = (x << 24) | ((x & 0xff00) << 8) | ((x & 0xff0000) >> 8) | (x >> 24);
+
+ return XSETTINGS_SUCCESS;
+}
+
+static XSettingsResult
+fetch_card8 (XSettingsBuffer *buffer,
+ CARD8 *result)
+{
+ if (BYTES_LEFT (buffer) < 1)
+ return XSETTINGS_ACCESS;
+
+ *result = *(CARD8 *)buffer->pos;
+ buffer->pos += 1;
+
+ return XSETTINGS_SUCCESS;
+}
+
+#define XSETTINGS_PAD(n,m) ((n + m - 1) & (~(m-1)))
+
+static XSettingsList *
+parse_settings (unsigned char *data,
+ size_t len)
+{
+ XSettingsBuffer buffer;
+ XSettingsResult result = XSETTINGS_SUCCESS;
+ XSettingsList *settings = NULL;
+ CARD32 serial;
+ CARD32 n_entries;
+ CARD32 i;
+ XSettingsSetting *setting = NULL;
+
+ local_byte_order = xsettings_byte_order ();
+
+ buffer.pos = buffer.data = data;
+ buffer.len = len;
+
+ result = fetch_card8 (&buffer, (char *)&buffer.byte_order);
+ if (buffer.byte_order != MSBFirst &&
+ buffer.byte_order != LSBFirst)
+ {
+ fprintf (stderr, "Invalid byte order in XSETTINGS property\n");
+ result = XSETTINGS_FAILED;
+ goto out;
+ }
+
+ buffer.pos += 3;
+
+ result = fetch_card32 (&buffer, &serial);
+ if (result != XSETTINGS_SUCCESS)
+ goto out;
+
+ result = fetch_card32 (&buffer, &n_entries);
+ if (result != XSETTINGS_SUCCESS)
+ goto out;
+
+ for (i = 0; i < n_entries; i++)
+ {
+ CARD8 type;
+ CARD16 name_len;
+ CARD32 v_int;
+ size_t pad_len;
+
+ result = fetch_card8 (&buffer, &type);
+ if (result != XSETTINGS_SUCCESS)
+ goto out;
+
+ buffer.pos += 1;
+
+ result = fetch_card16 (&buffer, &name_len);
+ if (result != XSETTINGS_SUCCESS)
+ goto out;
+
+ pad_len = XSETTINGS_PAD(name_len, 4);
+ if (BYTES_LEFT (&buffer) < pad_len)
+ {
+ result = XSETTINGS_ACCESS;
+ goto out;
+ }
+
+ setting = malloc (sizeof *setting);
+ if (!setting)
+ {
+ result = XSETTINGS_NO_MEM;
+ goto out;
+ }
+ setting->type = XSETTINGS_TYPE_INT; /* No allocated memory */
+
+ setting->name = malloc (name_len + 1);
+ if (!setting->name)
+ {
+ result = XSETTINGS_NO_MEM;
+ goto out;
+ }
+
+ memcpy (setting->name, buffer.pos, name_len);
+ setting->name[name_len] = '\0';
+ buffer.pos += pad_len;
+
+ result = fetch_card32 (&buffer, &v_int);
+ if (result != XSETTINGS_SUCCESS)
+ goto out;
+ setting->last_change_serial = v_int;
+
+ switch (type)
+ {
+ case XSETTINGS_TYPE_INT:
+ result = fetch_card32 (&buffer, &v_int);
+ if (result != XSETTINGS_SUCCESS)
+ goto out;
+
+ setting->data.v_int = (INT32)v_int;
+ break;
+ case XSETTINGS_TYPE_STRING:
+ result = fetch_card32 (&buffer, &v_int);
+ if (result != XSETTINGS_SUCCESS)
+ goto out;
+
+ pad_len = XSETTINGS_PAD (v_int, 4);
+ if (v_int + 1 == 0 || /* Guard against wrap-around */
+ BYTES_LEFT (&buffer) < pad_len)
+ {
+ result = XSETTINGS_ACCESS;
+ goto out;
+ }
+
+ setting->data.v_string = malloc (v_int + 1);
+ if (!setting->data.v_string)
+ {
+ result = XSETTINGS_NO_MEM;
+ goto out;
+ }
+
+ memcpy (setting->data.v_string, buffer.pos, v_int);
+ setting->data.v_string[v_int] = '\0';
+ buffer.pos += pad_len;
+
+ break;
+ case XSETTINGS_TYPE_COLOR:
+ result = fetch_ushort (&buffer, &setting->data.v_color.red);
+ if (result != XSETTINGS_SUCCESS)
+ goto out;
+ result = fetch_ushort (&buffer, &setting->data.v_color.green);
+ if (result != XSETTINGS_SUCCESS)
+ goto out;
+ result = fetch_ushort (&buffer, &setting->data.v_color.blue);
+ if (result != XSETTINGS_SUCCESS)
+ goto out;
+ result = fetch_ushort (&buffer, &setting->data.v_color.alpha);
+ if (result != XSETTINGS_SUCCESS)
+ goto out;
+
+ break;
+ default:
+ /* Quietly ignore unknown types */
+ break;
+ }
+
+ setting->type = type;
+
+ result = xsettings_list_insert (&settings, setting);
+ if (result != XSETTINGS_SUCCESS)
+ goto out;
+
+ setting = NULL;
+ }
+
+ out:
+
+ if (result != XSETTINGS_SUCCESS)
+ {
+ switch (result)
+ {
+ case XSETTINGS_NO_MEM:
+ fprintf(stderr, "Out of memory reading XSETTINGS property\n");
+ break;
+ case XSETTINGS_ACCESS:
+ fprintf(stderr, "Invalid XSETTINGS property (read off end)\n");
+ break;
+ case XSETTINGS_DUPLICATE_ENTRY:
+ fprintf (stderr, "Duplicate XSETTINGS entry for '%s'\n", setting->name);
+ case XSETTINGS_FAILED:
+ case XSETTINGS_SUCCESS:
+ case XSETTINGS_NO_ENTRY:
+ break;
+ }
+
+ if (setting)
+ xsettings_setting_free (setting);
+
+ xsettings_list_free (settings);
+ settings = NULL;
+
+ }
+
+ return settings;
+}
+
+static void
+read_settings (XSettingsClient *client)
+{
+ Atom type;
+ int format;
+ unsigned long n_items;
+ unsigned long bytes_after;
+ unsigned char *data;
+ int result;
+
+ int (*old_handler) (Display *, XErrorEvent *);
+
+ XSettingsList *old_list = client->settings;
+
+ client->settings = NULL;
+
+ if (client->manager_window)
+ {
+ old_handler = XSetErrorHandler (ignore_errors);
+ result = XGetWindowProperty (client->display, client->manager_window,
+ client->xsettings_atom, 0, LONG_MAX,
+ False, client->xsettings_atom,
+ &type, &format, &n_items, &bytes_after, &data);
+ XSetErrorHandler (old_handler);
+
+ if (result == Success && type != None)
+ {
+ if (type != client->xsettings_atom)
+ {
+ fprintf (stderr, "Invalid type for XSETTINGS property");
+ }
+ else if (format != 8)
+ {
+ fprintf (stderr, "Invalid format for XSETTINGS property %d", format);
+ }
+ else
+ client->settings = parse_settings (data, n_items);
+
+ XFree (data);
+ }
+ }
+
+ notify_changes (client, old_list);
+ xsettings_list_free (old_list);
+}
+
+static void
+add_events (Display *display,
+ Window window,
+ long mask)
+{
+ XWindowAttributes attr;
+
+ XGetWindowAttributes (display, window, &attr);
+ XSelectInput (display, window, attr.your_event_mask | mask);
+}
+
+static void
+check_manager_window (XSettingsClient *client)
+{
+ if (client->manager_window && client->watch)
+ client->watch (client->manager_window, False, 0, client->cb_data);
+
+ if (client->grab)
+ client->grab (client->display);
+ else
+ XGrabServer (client->display);
+
+ client->manager_window = XGetSelectionOwner (client->display,
+ client->selection_atom);
+ if (client->manager_window)
+ XSelectInput (client->display, client->manager_window,
+ PropertyChangeMask | StructureNotifyMask);
+
+ if (client->ungrab)
+ client->ungrab (client->display);
+ else
+ XUngrabServer (client->display);
+
+ XFlush (client->display);
+
+ if (client->manager_window && client->watch)
+ client->watch (client->manager_window, True,
+ PropertyChangeMask | StructureNotifyMask,
+ client->cb_data);
+
+ read_settings (client);
+}
+
+XSettingsClient *
+xsettings_client_new (Display *display,
+ int screen,
+ XSettingsNotifyFunc notify,
+ XSettingsWatchFunc watch,
+ void *cb_data)
+{
+ XSettingsClient *client;
+ char buffer[256];
+ char *atom_names[3];
+ Atom atoms[3];
+
+ client = malloc (sizeof *client);
+ if (!client)
+ return NULL;
+
+ client->display = display;
+ client->screen = screen;
+ client->notify = notify;
+ client->watch = watch;
+ client->cb_data = cb_data;
+ client->grab = NULL;
+ client->ungrab = NULL;
+
+ client->manager_window = None;
+ client->settings = NULL;
+
+ sprintf(buffer, "_XSETTINGS_S%d", screen);
+ atom_names[0] = buffer;
+ atom_names[1] = "_XSETTINGS_SETTINGS";
+ atom_names[2] = "MANAGER";
+
+ XInternAtoms (display, atom_names, 3, False, atoms);
+
+ client->selection_atom = atoms[0];
+ client->xsettings_atom = atoms[1];
+ client->manager_atom = atoms[2];
+
+ /* Select on StructureNotify so we get MANAGER events
+ */
+ add_events (display, RootWindow (display, screen), StructureNotifyMask);
+
+ if (client->watch)
+ client->watch (RootWindow (display, screen), True, StructureNotifyMask,
+ client->cb_data);
+
+ check_manager_window (client);
+
+ return client;
+}
+
+void
+xsettings_client_set_grab_func (XSettingsClient *client,
+ XSettingsGrabFunc grab)
+{
+ client->grab = grab;
+}
+
+void
+xsettings_client_set_ungrab_func (XSettingsClient *client,
+ XSettingsGrabFunc ungrab)
+{
+ client->ungrab = ungrab;
+}
+
+void
+xsettings_client_destroy (XSettingsClient *client)
+{
+ if (client->watch)
+ client->watch (RootWindow (client->display, client->screen),
+ False, 0, client->cb_data);
+ if (client->manager_window && client->watch)
+ client->watch (client->manager_window, False, 0, client->cb_data);
+
+ xsettings_list_free (client->settings);
+ free (client);
+}
+
+XSettingsResult
+xsettings_client_get_setting (XSettingsClient *client,
+ const char *name,
+ XSettingsSetting **setting)
+{
+ XSettingsSetting *search = xsettings_list_lookup (client->settings, name);
+ if (search)
+ {
+ *setting = xsettings_setting_copy (search);
+ return *setting ? XSETTINGS_SUCCESS : XSETTINGS_NO_MEM;
+ }
+ else
+ return XSETTINGS_NO_ENTRY;
+}
+
+Bool
+xsettings_client_process_event (XSettingsClient *client,
+ XEvent *xev)
+{
+ /* The checks here will not unlikely cause us to reread
+ * the properties from the manager window a number of
+ * times when the manager changes from A->B. But manager changes
+ * are going to be pretty rare.
+ */
+ if (xev->xany.window == RootWindow (client->display, client->screen))
+ {
+ if (xev->xany.type == ClientMessage &&
+ xev->xclient.message_type == client->manager_atom &&
+ xev->xclient.data.l[1] == client->selection_atom)
+ {
+ check_manager_window (client);
+ return True;
+ }
+ }
+ else if (xev->xany.window == client->manager_window)
+ {
+ if (xev->xany.type == DestroyNotify)
+ {
+ check_manager_window (client);
+ return True;
+ }
+ else if (xev->xany.type == PropertyNotify)
+ {
+ read_settings (client);
+ return True;
+ }
+ }
+
+ return False;
+}
diff --git a/libmb/xsettings-client.h b/libmb/xsettings-client.h
new file mode 100644
index 0000000..b916eba
--- /dev/null
+++ b/libmb/xsettings-client.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright © 2001 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Red Hat not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. Red Hat makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ *
+ * RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL RED HAT
+ * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author: Owen Taylor, Red Hat, Inc.
+ */
+#ifndef XSETTINGS_CLIENT_H
+#define XSETTINGS_CLIENT_H
+
+#include <X11/Xlib.h>
+#include "xsettings-common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+typedef struct _XSettingsClient XSettingsClient;
+
+typedef enum
+{
+ XSETTINGS_ACTION_NEW,
+ XSETTINGS_ACTION_CHANGED,
+ XSETTINGS_ACTION_DELETED
+} XSettingsAction;
+
+typedef void (*XSettingsNotifyFunc) (const char *name,
+ XSettingsAction action,
+ XSettingsSetting *setting,
+ void *cb_data);
+typedef void (*XSettingsWatchFunc) (Window window,
+ Bool is_start,
+ long mask,
+ void *cb_data);
+typedef void (*XSettingsGrabFunc) (Display *display);
+
+XSettingsClient *xsettings_client_new (Display *display,
+ int screen,
+ XSettingsNotifyFunc notify,
+ XSettingsWatchFunc watch,
+ void *cb_data);
+void xsettings_client_set_grab_func (XSettingsClient *client,
+ XSettingsGrabFunc grab);
+void xsettings_client_set_ungrab_func (XSettingsClient *client,
+ XSettingsGrabFunc ungrab);
+void xsettings_client_destroy (XSettingsClient *client);
+Bool xsettings_client_process_event (XSettingsClient *client,
+ XEvent *xev);
+XSettingsResult xsettings_client_get_setting (XSettingsClient *client,
+ const char *name,
+ XSettingsSetting **setting);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* XSETTINGS_CLIENT_H */
diff --git a/libmb/xsettings-common.c b/libmb/xsettings-common.c
new file mode 100644
index 0000000..3d74440
--- /dev/null
+++ b/libmb/xsettings-common.c
@@ -0,0 +1,264 @@
+/*
+ * Copyright © 2001 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Red Hat not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. Red Hat makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ *
+ * RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL RED HAT
+ * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author: Owen Taylor, Red Hat, Inc.
+ */
+#include "string.h"
+#include "stdlib.h"
+
+#include <X11/Xlib.h>
+#include <X11/Xmd.h> /* For CARD32 */
+
+#include "xsettings-common.h"
+
+XSettingsSetting *
+xsettings_setting_copy (XSettingsSetting *setting)
+{
+ XSettingsSetting *result;
+ size_t str_len;
+
+ result = malloc (sizeof *result);
+ if (!result)
+ return NULL;
+
+ str_len = strlen (setting->name);
+ result->name = malloc (str_len + 1);
+ if (!result->name)
+ goto err;
+
+ memcpy (result->name, setting->name, str_len + 1);
+
+ result->type = setting->type;
+
+ switch (setting->type)
+ {
+ case XSETTINGS_TYPE_INT:
+ result->data.v_int = setting->data.v_int;
+ break;
+ case XSETTINGS_TYPE_COLOR:
+ result->data.v_color = setting->data.v_color;
+ break;
+ case XSETTINGS_TYPE_STRING:
+ str_len = strlen (setting->data.v_string);
+ result->data.v_string = malloc (str_len + 1);
+ if (!result->data.v_string)
+ goto err;
+
+ memcpy (result->data.v_string, setting->data.v_string, str_len + 1);
+ break;
+ }
+
+ result->last_change_serial = setting->last_change_serial;
+
+ return result;
+
+ err:
+ if (result->name)
+ free (result->name);
+ free (result);
+
+ return NULL;
+}
+
+XSettingsList *
+xsettings_list_copy (XSettingsList *list)
+{
+ XSettingsList *new = NULL;
+ XSettingsList *old_iter = list;
+ XSettingsList *new_iter = NULL;
+
+ while (old_iter)
+ {
+ XSettingsList *new_node;
+
+ new_node = malloc (sizeof *new_node);
+ if (!new_node)
+ goto error;
+
+ new_node->setting = xsettings_setting_copy (old_iter->setting);
+ if (!new_node->setting)
+ {
+ free (new_node);
+ goto error;
+ }
+
+ if (new_iter)
+ new_iter->next = new_node;
+ else
+ new = new_node;
+
+ new_iter = new_node;
+
+ old_iter = old_iter->next;
+ }
+
+ return new;
+
+ error:
+ xsettings_list_free (new);
+ return NULL;
+}
+
+int
+xsettings_setting_equal (XSettingsSetting *setting_a,
+ XSettingsSetting *setting_b)
+{
+ if (setting_a->type != setting_b->type)
+ return 0;
+
+ if (strcmp (setting_a->name, setting_b->name) != 0)
+ return 0;
+
+ switch (setting_a->type)
+ {
+ case XSETTINGS_TYPE_INT:
+ return setting_a->data.v_int == setting_b->data.v_int;
+ case XSETTINGS_TYPE_COLOR:
+ return (setting_a->data.v_color.red == setting_b->data.v_color.red &&
+ setting_a->data.v_color.green == setting_b->data.v_color.green &&
+ setting_a->data.v_color.blue == setting_b->data.v_color.blue &&
+ setting_a->data.v_color.alpha == setting_b->data.v_color.alpha);
+ case XSETTINGS_TYPE_STRING:
+ return strcmp (setting_a->data.v_string, setting_b->data.v_string) == 0;
+ }
+
+ return 0;
+}
+
+void
+xsettings_setting_free (XSettingsSetting *setting)
+{
+ if (setting->type == XSETTINGS_TYPE_STRING)
+ free (setting->data.v_string);
+
+ if (setting->name)
+ free (setting->name);
+
+ free (setting);
+}
+
+void
+xsettings_list_free (XSettingsList *list)
+{
+ while (list)
+ {
+ XSettingsList *next = list->next;
+
+ xsettings_setting_free (list->setting);
+ free (list);
+
+ list = next;
+ }
+}
+
+XSettingsResult
+xsettings_list_insert (XSettingsList **list,
+ XSettingsSetting *setting)
+{
+ XSettingsList *node;
+ XSettingsList *iter;
+ XSettingsList *last = NULL;
+
+ node = malloc (sizeof *node);
+ if (!node)
+ return XSETTINGS_NO_MEM;
+ node->setting = setting;
+
+ iter = *list;
+ while (iter)
+ {
+ int cmp = strcmp (setting->name, iter->setting->name);
+
+ if (cmp < 0)
+ break;
+ else if (cmp == 0)
+ {
+ free (node);
+ return XSETTINGS_DUPLICATE_ENTRY;
+ }
+
+ last = iter;
+ iter = iter->next;
+ }
+
+ if (last)
+ last->next = node;
+ else
+ *list = node;
+
+ node->next = iter;
+
+ return XSETTINGS_SUCCESS;
+}
+
+XSettingsResult
+xsettings_list_delete (XSettingsList **list,
+ const char *name)
+{
+ XSettingsList *iter;
+ XSettingsList *last = NULL;
+
+ iter = *list;
+ while (iter)
+ {
+ if (strcmp (name, iter->setting->name) == 0)
+ {
+ if (last)
+ last->next = iter->next;
+ else
+ *list = iter->next;
+
+ xsettings_setting_free (iter->setting);
+ free (iter);
+
+ return XSETTINGS_SUCCESS;
+ }
+
+ last = iter;
+ iter = iter->next;
+ }
+
+ return XSETTINGS_FAILED;
+}
+
+XSettingsSetting *
+xsettings_list_lookup (XSettingsList *list,
+ const char *name)
+{
+ XSettingsList *iter;
+
+ iter = list;
+ while (iter)
+ {
+ if (strcmp (name, iter->setting->name) == 0)
+ return iter->setting;
+
+ iter = iter->next;
+ }
+
+ return NULL;
+}
+
+char
+xsettings_byte_order (void)
+{
+ CARD32 myint = 0x01020304;
+ return (*(char *)&myint == 1) ? MSBFirst : LSBFirst;
+}
diff --git a/libmb/xsettings-common.h b/libmb/xsettings-common.h
new file mode 100644
index 0000000..e3af4a6
--- /dev/null
+++ b/libmb/xsettings-common.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright © 2001 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Red Hat not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. Red Hat makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ *
+ * RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL RED HAT
+ * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author: Owen Taylor, Red Hat, Inc.
+ */
+#ifndef XSETTINGS_COMMON_H
+#define XSETTINGS_COMMON_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+typedef struct _XSettingsBuffer XSettingsBuffer;
+typedef struct _XSettingsColor XSettingsColor;
+typedef struct _XSettingsList XSettingsList;
+typedef struct _XSettingsSetting XSettingsSetting;
+
+/* Types of settings possible. Enum values correspond to
+ * protocol values.
+ */
+typedef enum
+{
+ XSETTINGS_TYPE_INT = 0,
+ XSETTINGS_TYPE_STRING = 1,
+ XSETTINGS_TYPE_COLOR = 2
+} XSettingsType;
+
+typedef enum
+{
+ XSETTINGS_SUCCESS,
+ XSETTINGS_NO_MEM,
+ XSETTINGS_ACCESS,
+ XSETTINGS_FAILED,
+ XSETTINGS_NO_ENTRY,
+ XSETTINGS_DUPLICATE_ENTRY
+} XSettingsResult;
+
+struct _XSettingsBuffer
+{
+ char byte_order;
+ size_t len;
+ unsigned char *data;
+ unsigned char *pos;
+};
+
+struct _XSettingsColor
+{
+ unsigned short red, green, blue, alpha;
+};
+
+struct _XSettingsList
+{
+ XSettingsSetting *setting;
+ XSettingsList *next;
+};
+
+struct _XSettingsSetting
+{
+ char *name;
+ XSettingsType type;
+
+ union {
+ int v_int;
+ char *v_string;
+ XSettingsColor v_color;
+ } data;
+
+ unsigned long last_change_serial;
+};
+
+XSettingsSetting *xsettings_setting_copy (XSettingsSetting *setting);
+void xsettings_setting_free (XSettingsSetting *setting);
+int xsettings_setting_equal (XSettingsSetting *setting_a,
+ XSettingsSetting *setting_b);
+
+void xsettings_list_free (XSettingsList *list);
+XSettingsList *xsettings_list_copy (XSettingsList *list);
+XSettingsResult xsettings_list_insert (XSettingsList **list,
+ XSettingsSetting *setting);
+XSettingsSetting *xsettings_list_lookup (XSettingsList *list,
+ const char *name);
+XSettingsResult xsettings_list_delete (XSettingsList **list,
+ const char *name);
+
+char xsettings_byte_order (void);
+
+#define XSETTINGS_PAD(n,m) ((n + m - 1) & (~(m-1)))
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* XSETTINGS_COMMON_H */
--
2.8.1
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