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Truncate ridiculously long titles to avoid crashing or letting the pager

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2005-10-03  Elijah Newren  <newren@gmail.com>

	Truncate ridiculously long titles to avoid crashing or letting the
	pager crash.  Based on patch from Ray, incorporating suggestions
	from Havoc and some extensions of my own.  Fixes #315070.

	* src/display.c (set_utf8_string_hint, meta_display_open):
	* src/xprops.[ch] (meta_prop_set_utf8_string_hint):
	Move set_utf8_string_hint() to props.[ch], namespace it
	("meta_prop_"), and make it public

	* src/tabpopup.c (utf8_strndup, meta_ui_tab_popup_new):
	* src/util.[ch] (meta_g_utf8_strndup):
	Move utf8_strndup() to util.[ch], namespace it ("meta_g_"), and
	make it public

	* src/display.c (meta_display_open):
	* src/display.h (struct _MetaDisplay):
	add net_wm_visible_name and net_wm_visible_icon_name atoms to the
	list of atoms we work with

	* src/window-props.c (set_window_title, set_icon_title): If title
	length is greater than 512, truncate it and set
	_NET_WM_VISIBLE_NAME or _NET_WM_VISIBLE_ICON_NAME accordingly
This commit is contained in:
Elijah Newren 2005-10-03 18:13:45 +00:00 committed by Elijah Newren
parent fcba59e685
commit ef5299ee92
9 changed files with 96 additions and 40 deletions
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25
ChangeLog
View File

@ -1,3 +1,28 @@
2005-10-03 Elijah Newren <newren@gmail.com>
Truncate ridiculously long titles to avoid crashing or letting the
pager crash. Based on patch from Ray, incorporating suggestions
from Havoc and some extensions of my own. Fixes #315070.
* src/display.c (set_utf8_string_hint, meta_display_open):
* src/xprops.[ch] (meta_prop_set_utf8_string_hint):
Move set_utf8_string_hint() to props.[ch], namespace it
("meta_prop_"), and make it public
* src/tabpopup.c (utf8_strndup, meta_ui_tab_popup_new):
* src/util.[ch] (meta_g_utf8_strndup):
Move utf8_strndup() to util.[ch], namespace it ("meta_g_"), and
make it public
* src/display.c (meta_display_open):
* src/display.h (struct _MetaDisplay):
add net_wm_visible_name and net_wm_visible_icon_name atoms to the
list of atoms we work with
* src/window-props.c (set_window_title, set_icon_title): If title
length is greater than 512, truncate it and set
_NET_WM_VISIBLE_NAME or _NET_WM_VISIBLE_ICON_NAME accordingly
2005-10-03 Elijah Newren <newren@gmail.com>
Get the tabbing window outline to work with gtk+ 2.8.4 again.

36
src/display.c
View File

@ -121,20 +121,6 @@ static void prefs_changed_callback (MetaPreference pref,
static void sanity_check_timestamps (MetaDisplay *display,
Time known_good_timestamp);
static void
set_utf8_string_hint (MetaDisplay *display,
Window xwindow,
Atom atom,
const char *val)
{
meta_error_trap_push (display);
XChangeProperty (display->xdisplay,
xwindow, atom,
display->atom_utf8_string,
8, PropModeReplace, (guchar*) val, strlen (val));
meta_error_trap_pop (display, FALSE);
}
static void
ping_data_free (MetaPingData *ping_data)
{
@ -302,7 +288,9 @@ meta_display_open (const char *name)
"_NET_MOVERESIZE_WINDOW",
"_NET_DESKTOP_GEOMETRY",
"_NET_DESKTOP_VIEWPORT",
"_METACITY_VERSION"
"_METACITY_VERSION",
"_NET_WM_VISIBLE_NAME",
"_NET_WM_VISIBLE_ICON_NAME"
};
Atom atoms[G_N_ELEMENTS(atom_names)];
@ -460,6 +448,8 @@ meta_display_open (const char *name)
display->atom_net_desktop_geometry = atoms[89];
display->atom_net_desktop_viewport = atoms[90];
display->atom_metacity_version = atoms[91];
display->atom_net_wm_visible_name = atoms[92];
display->atom_net_wm_visible_icon_name = atoms[93];
display->prop_hooks = NULL;
meta_display_init_window_prop_hooks (display);
@ -637,15 +627,15 @@ meta_display_open (const char *name)
display->leader_window = meta_create_offscreen_window (display->xdisplay,
DefaultRootWindow (display->xdisplay));
set_utf8_string_hint (display,
display->leader_window,
display->atom_net_wm_name,
"Metacity");
meta_prop_set_utf8_string_hint (display,
display->leader_window,
display->atom_net_wm_name,
"Metacity");
set_utf8_string_hint (display,
display->leader_window,
display->atom_metacity_version,
VERSION);
meta_prop_set_utf8_string_hint (display,
display->leader_window,
display->atom_metacity_version,
VERSION);
data[0] = display->leader_window;
XChangeProperty (display->xdisplay,

2
src/display.h
View File

@ -183,6 +183,8 @@ struct _MetaDisplay
Atom atom_net_desktop_geometry;
Atom atom_net_desktop_viewport;
Atom atom_metacity_version;
Atom atom_net_wm_visible_name;
Atom atom_net_wm_visible_icon_name;
/* This is the actual window from focus events,
* not the one we last set

16
src/tabpopup.c
View File

@ -98,20 +98,6 @@ outline_window_expose (GtkWidget *widget,
return FALSE;
}
static char*
utf8_strndup (const char *src,
int n)
{
const gchar *s = src;
while (n && *s)
{
s = g_utf8_next_char (s);
n--;
}
return g_strndup (src, s - src);
}
static GdkPixbuf*
dimm_icon (GdkPixbuf *pixbuf)
{
@ -238,7 +224,7 @@ meta_ui_tab_popup_new (const MetaTabEntry *entries,
tmp = markup;
}
te->title = utf8_strndup (tmp, max_chars_per_title);
te->title = meta_g_utf8_strndup (tmp, max_chars_per_title);
g_free (tmp);
}
te->widget = NULL;

14
src/util.c
View File

@ -161,6 +161,20 @@ meta_set_replace_current_wm (gboolean setting)
replace_current = setting;
}
char *
meta_g_utf8_strndup (const gchar *src,
gsize n)
{
const gchar *s = src;
while (n && *s)
{
s = g_utf8_next_char (s);
n--;
}
return g_strndup (src, s - src);
}
static int
utf8_fputs (const char *str,
FILE *f)

1
src/util.h
View File

@ -88,6 +88,7 @@ void meta_print_backtrace (void);
#define _(x) dgettext (GETTEXT_PACKAGE, x)
#define N_(x) x
char* meta_g_utf8_strndup (const gchar *src, gsize n);
/* To disable verbose mode, we make these functions into no-ops */
#ifdef WITH_VERBOSE_MODE

23
src/window-props.c
View File

@ -190,6 +190,8 @@ reload_net_wm_user_time (MetaWindow *window,
}
}
#define MAX_TITLE_LENGTH 512
static void
set_window_title (MetaWindow *window,
const char *title)
@ -200,8 +202,16 @@ set_window_title (MetaWindow *window,
if (title == NULL)
window->title = g_strdup ("");
else
else if (g_utf8_strlen (title, MAX_TITLE_LENGTH + 1) <= MAX_TITLE_LENGTH)
window->title = g_strdup (title);
else
{
window->title = meta_g_utf8_strndup (title, MAX_TITLE_LENGTH);
meta_prop_set_utf8_string_hint (window->display,
window->xwindow,
window->display->atom_net_wm_visible_name,
window->title);
}
/* strndup is a hack since GNU libc has broken %.10s */
str = g_strndup (window->title, 10);
@ -285,8 +295,17 @@ set_icon_title (MetaWindow *window,
if (title == NULL)
window->icon_name = g_strdup ("");
else
else if (g_utf8_strlen (title, MAX_TITLE_LENGTH + 1) <= MAX_TITLE_LENGTH)
window->icon_name = g_strdup (title);
else
{
window->icon_name = meta_g_utf8_strndup (title, MAX_TITLE_LENGTH);
meta_prop_set_utf8_string_hint (window->display,
window->xwindow,
window->display->atom_net_wm_visible_icon_name,
window->icon_name);
}
}
static void

14
src/xprops.c
View File

@ -524,6 +524,20 @@ meta_prop_get_utf8_list (MetaDisplay *display,
return utf8_list_from_results (&results, str_p, n_str_p);
}
void
meta_prop_set_utf8_string_hint (MetaDisplay *display,
Window xwindow,
Atom atom,
const char *val)
{
meta_error_trap_push (display);
XChangeProperty (display->xdisplay,
xwindow, atom,
display->atom_utf8_string,
8, PropModeReplace, (guchar*) val, strlen (val));
meta_error_trap_pop (display, FALSE);
}
static gboolean
window_from_results (GetPropertyResults *results,
Window *window_p)

5
src/xprops.h
View File

@ -95,6 +95,11 @@ gboolean meta_prop_get_utf8_list (MetaDisplay *display,
Atom xatom,
char ***str_p,
int *n_str_p);
void meta_prop_set_utf8_string_hint
(MetaDisplay *display,
Window xwindow,
Atom atom,
const char *val);
gboolean meta_prop_get_window (MetaDisplay *display,
Window xwindow,
Atom xatom,