Changed to use page labels now. Rewrote completely because I didn't

[evince.git] / backend / ev-page-cache.c

diff --git a/backend/ev-page-cache.c b/backend/ev-page-cache.c
index 204239476f87c8b74da7f24ffc8f4eed8a3da5f0..08d1be459029c4414cc8e1879b703d7560328b44 100644 (file)
--- a/backend/ev-page-cache.c
+++ b/backend/ev-page-cache.c
@@ -1,5 +1,7 @@
 #include "ev-page-cache.h"
 #include "ev-job-queue.h"
+#include <stdlib.h>
+#include <string.h>
 
 typedef struct _EvPageCacheInfo
 {
@@ -181,6 +183,45 @@ ev_page_cache_set_current_page (EvPageCache *page_cache,
        g_signal_emit (page_cache, signals[PAGE_CHANGED], 0, page);
 }
 
+gboolean
+ev_page_cache_set_page_label (EvPageCache *page_cache,
+                             const char  *page_label)
+{
+       gint i, page;
+       long value;
+       char *endptr = NULL;
+       
+       g_return_val_if_fail (EV_IS_PAGE_CACHE (page_cache), FALSE);
+       g_return_val_if_fail (page_label != NULL, FALSE);
+
+       /* First, look for a literal label match */
+       for (i = 0; i < page_cache->n_pages; i ++) {
+               if (page_cache->page_labels[i] != NULL &&
+                   ! strcmp (page_label, page_cache->page_labels[i])) {
+                       ev_page_cache_set_current_page (page_cache, i);
+                       return TRUE;
+               }
+       }
+
+       /* Next, parse the label, and see if the number fits */
+       value = strtol (page_label, &endptr, 10);
+       if (endptr[0] == '\0') {
+               /* Page number is an integer */
+               page = MIN (G_MAXINT, value);
+
+               /* convert from a page label to a page offset */
+               page --;
+               if (page >= 0 &&
+                   page < page_cache->n_pages &&
+                   page_cache->page_labels[page] == NULL) {
+                       ev_page_cache_set_current_page (page_cache, page);
+                       return TRUE;
+               }
+       }
+
+       return FALSE;
+}
+
 void
 ev_page_cache_set_link (EvPageCache *page_cache,
                        EvLink      *link)