From cfb2580b7b553dff1fc3512f7d31864dd17476ae Mon Sep 17 00:00:00 2001
From: Moritz Lipp <mlq@pwmt.org>
Date: Mon, 18 Apr 2011 17:03:08 +0200
Subject: [PATCH] Return value for create_blank_pages

---
 zathura.c | 17 +++++++++++++++--
 zathura.h |  4 +++-
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/zathura.c b/zathura.c
index df916b2..86d9dc3 100644
--- a/zathura.c
+++ b/zathura.c
@@ -2,6 +2,8 @@
 
 #include <stdlib.h>
 
+#include <girara.h>
+
 #include "callbacks.h"
 #include "config.h"
 #include "document.h"
@@ -101,7 +103,9 @@ document_open(const char* path, const char* password)
   Zathura.document = document;
 
   /* init view */
-  create_blank_pages();
+  if (create_blank_pages() == false) {
+    return false;
+  }
 
   /* view mode */
   int* value = girara_setting_get(Zathura.UI.session, "pages-per-row");
@@ -215,7 +219,7 @@ page_view_set_mode(unsigned int pages_per_row)
   gtk_widget_show_all(Zathura.UI.page_view);
 }
 
-void
+bool
 create_blank_pages()
 {
   /* create blank pages */
@@ -225,6 +229,13 @@ create_blank_pages()
     g_static_mutex_lock(&(page->lock));
 
     cairo_t* cairo = gdk_cairo_create(page->drawing_area->window);
+
+    if (cairo == NULL) {
+      girara_error("Could not create blank page");
+      g_static_mutex_unlock(&(page->lock));
+      return false;
+    }
+
     cairo_set_source_rgb(cairo, 1, 1, 1);
     cairo_rectangle(cairo, 0, 0, page->width, page->height);
     cairo_fill(cairo);
@@ -232,6 +243,8 @@ create_blank_pages()
 
     g_static_mutex_unlock(&(page->lock));
   }
+
+  return true;
 }
 
 /* main function */
diff --git a/zathura.h b/zathura.h
index 5378480..fc59099 100644
--- a/zathura.h
+++ b/zathura.h
@@ -89,7 +89,9 @@ void page_view_set_mode(unsigned int pages_per_row);
 
 /**
  * Create blank pages
+ *
+ * @return false if an error occured, otherwise true
  */
-void create_blank_pages();
+bool create_blank_pages();
 
 #endif // ZATHURA_H