Fix crash when using pango markup font

The characters & < > ' " needs to be escaped when using pango markup

Signed-off-by: Heghedus Razvan <heghedus.razvan@gmail.com>

1 files changed, 20 insertions, 1 deletions

diff --git a/sway/tree/view.c b/sway/tree/view.c
index e2cb8a7a..9bdc5198 100644
--- a/sway/tree/view.c
+++ b/sway/tree/view.c
@@ -14,6 +14,8 @@
 #include "sway/tree/layout.h"
 #include "sway/tree/view.h"
 #include "sway/tree/workspace.h"
+#include "sway/config.h"
+#include "pango.h"
 
 void view_init(struct sway_view *view, enum sway_view_type type,
                 const struct sway_view_impl *impl) {
@@ -612,6 +614,19 @@ static size_t parse_title_format(struct sway_view *view, char *buffer) {
         return len;
 }
 
+static char *escape_title(char *buffer) {
+        int length = escape_markup_text(buffer, NULL, 0);
+        char *escaped_title = calloc(length + 1, sizeof(char));
+        int result = escape_markup_text(buffer, escaped_title, length);
+        if (result != length) {
+                wlr_log(L_ERROR, "Could not escape title: %s", buffer);
+                free(escaped_title);
+                return buffer;
+        }
+        free(buffer);
+        return escaped_title;
+}
+
 void view_update_title(struct sway_view *view, bool force) {
         if (!view->swayc) {
                 return;
@@ -631,11 +646,15 @@ void view_update_title(struct sway_view *view, bool force) {
         free(view->swayc->formatted_title);
         if (title) {
                 size_t len = parse_title_format(view, NULL);
-                char *buffer = calloc(len + 1, 1);
+                char *buffer = calloc(len + 1, sizeof(char));
                 if (!sway_assert(buffer, "Unable to allocate title string")) {
                         return;
                 }
                 parse_title_format(view, buffer);
+                // now we have the title, but needs to be escaped when using pango markup
+                if (config->pango_markup) {
+                        buffer = escape_title(buffer);
+                }
 
                 view->swayc->name = strdup(title);
                 view->swayc->formatted_title = buffer;