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xcursor: add fallbacks for legacy names 

Some XCursor themes still use the legacy names instead of the newer
cursor naming spec [1]. Fall back to the legacy name if the standard
one could not be found.

[1]: https://www.freedesktop.org/wiki/Specifications/cursor-spec/

Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3746
This commit is contained in:
Simon Ser 2023-11-01 11:40:13 +01:00 committed by Simon Zeni
parent 8ebfeffdc8
commit dbedcdb418
1 changed files with 42 additions and 1 deletions
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43
xcursor/wlr_xcursor.c
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@ -239,7 +239,7 @@ void wlr_xcursor_theme_destroy(struct wlr_xcursor_theme *theme) {
free(theme);
}
struct wlr_xcursor *wlr_xcursor_theme_get_cursor(struct wlr_xcursor_theme *theme,
static struct wlr_xcursor *xcursor_theme_get_cursor(struct wlr_xcursor_theme *theme,
const char *name) {
for (unsigned int i = 0; i < theme->cursor_count; i++) {
if (strcmp(name, theme->cursors[i]->name) == 0) {
@ -250,6 +250,47 @@ struct wlr_xcursor *wlr_xcursor_theme_get_cursor(struct wlr_xcursor_theme *theme
return NULL;
}
struct wlr_xcursor *wlr_xcursor_theme_get_cursor(struct wlr_xcursor_theme *theme,
const char *name) {
struct wlr_xcursor *xcursor = xcursor_theme_get_cursor(theme, name);
if (xcursor) {
return xcursor;
}
// Try the legacy name as a fallback
const char *fallback;
if (strcmp(name, "default") == 0) {
fallback = "left_ptr";
} else if (strcmp(name, "text") == 0) {
fallback = "xterm";
} else if (strcmp(name, "pointer") == 0) {
fallback = "hand1";
} else if (strcmp(name, "wait") == 0) {
fallback = "watch";
} else if (strcmp(name, "all-scroll") == 0) {
fallback = "grabbing";
} else if (strcmp(name, "sw-resize") == 0) {
fallback = "bottom_left_corner";
} else if (strcmp(name, "se-resize") == 0) {
fallback = "bottom_right_corner";
} else if (strcmp(name, "s-resize") == 0) {
fallback = "bottom_side";
} else if (strcmp(name, "w-resize") == 0) {
fallback = "left_side";
} else if (strcmp(name, "e-resize") == 0) {
fallback = "right_side";
} else if (strcmp(name, "nw-resize") == 0) {
fallback = "top_left_corner";
} else if (strcmp(name, "ne-resize") == 0) {
fallback = "top_right_corner";
} else if (strcmp(name, "n-resize") == 0) {
fallback = "top_side";
} else {
return NULL;
}
return xcursor_theme_get_cursor(theme, fallback);
}
static int xcursor_frame_and_duration(struct wlr_xcursor *cursor,
uint32_t time, uint32_t *duration) {
if (cursor->image_count == 1) {