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cursor: add one more directory to XCURSORPATH

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The user may install cursor themes manually, and the desktop environment
may provide a special directory for storing them.  For instance, GTK puts
those themes into ~/.local/share/icons, and many Linux distributions suggest
using that directory for user-specific themes.  However, users of
libwayland-cursor cannot load these themes using the API provided by the
library because the latter does not look into that directory.

This patch adds ~/.local/share/icons to the search path, so user-specific
themes can be loaded through the API provided by libwayland-cursor.

Signed-off-by: Alexander Dunaev <adunaev@igalia.com>
Reviewed-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Reviewed-by: Simon Ser <contact@emersion.fr>
This commit is contained in:
Alexander Dunaev 2021-02-17 15:44:00 +07:00 • committed by Simon Ser
parent 88f1605a82
commit 0aebb5b94d
1 changed files with 42 additions and 8 deletions
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50
cursor/xcursor.c
View file

@ -621,16 +621,43 @@ XcursorFileLoadImages (FILE *file, int size)
#define XCURSORPATH "~/.icons:/usr/share/icons:/usr/share/pixmaps:~/.cursors:/usr/share/cursors/xorg-x11:"ICONDIR
#endif
static const char *
#define XDG_DATA_HOME_FALLBACK "~/.local/share"
#define CURSORDIR "/icons"
/** Get search path for cursor themes
*
* This function builds the list of directories to look for cursor
* themes in. The format is PATH-like: directories are separated by
* colons.
*
* The memory block returned by this function is allocated on the heap
* and must be freed by the caller.
*/
static char *
XcursorLibraryPath (void)
{
static const char *path;
const char *env_var;
char *path = NULL;
int pathlen = 0;
if (!path)
env_var = getenv ("XCURSOR_PATH");
if (env_var)
{
path = getenv ("XCURSOR_PATH");
if (!path)
path = XCURSORPATH;
path = strdup (env_var);
}
else
{
env_var = getenv ("XDG_DATA_HOME");
if (env_var) {
pathlen = strlen (env_var) + strlen (CURSORDIR ":" XCURSORPATH) + 1;
path = malloc (pathlen);
snprintf (path, pathlen, "%s%s", env_var,
CURSORDIR ":" XCURSORPATH);
}
else
{
path = strdup (XDG_DATA_HOME_FALLBACK CURSORDIR ":" XCURSORPATH);
}
}
return path;
}
@ -803,6 +830,7 @@ XcursorScanTheme (const char *theme, const char *name)
const char *path;
char *inherits = NULL;
const char *i;
char *xcursor_path;
if (!theme || !name)
return NULL;
@ -810,7 +838,8 @@ XcursorScanTheme (const char *theme, const char *name)
/*
* Scan this theme
*/
for (path = XcursorLibraryPath ();
xcursor_path = XcursorLibraryPath ();
for (path = xcursor_path;
path && f == NULL;
path = _XcursorNextPath (path))
{
@ -842,6 +871,7 @@ XcursorScanTheme (const char *theme, const char *name)
f = XcursorScanTheme (i, name);
if (inherits != NULL)
free (inherits);
free (xcursor_path);
return f;
}
@ -940,11 +970,13 @@ xcursor_load_theme(const char *theme, int size,
char *full, *dir;
char *inherits = NULL;
const char *path, *i;
char *xcursor_path;
if (!theme)
theme = "default";
for (path = XcursorLibraryPath();
xcursor_path = XcursorLibraryPath();
for (path = xcursor_path;
path;
path = _XcursorNextPath(path)) {
dir = _XcursorBuildThemeDir(path, theme);
@ -975,4 +1007,6 @@ xcursor_load_theme(const char *theme, int size,
if (inherits)
free(inherits);
free (xcursor_path);
}