Get and free pdf page

ft/document.c

@@ -196,7 +196,7 @@ zathura_document_attachments_free(zathura_list_t* list)
 zathura_page_t*
 zathura_page_get(zathura_document_t* document, unsigned int page)
 {
-  if(!document || !page) {
+  if(!document) {
     return NULL;
   }
 

ft/document.h

@@ -62,8 +62,8 @@ typedef struct zathura_form_s
 
 typedef struct zathura_page_s
 {
-  unsigned int height;
-  unsigned int width;
+  double height;
+  double width;
   zathura_document_t* document;
   void* data;
 } zathura_page_t;

ft/pdf/pdf.c

@@ -47,6 +47,8 @@ pdf_document_open(zathura_document_t* document)
     return false;
   }
 
+  document->number_of_pages = poppler_document_get_n_pages(pdf_document->document);
+
   return true;
 }
 
@@ -58,6 +60,8 @@ pdf_document_free(zathura_document_t* document)
   }
 
   if(document->data) {
+    pdf_document_t* pdf_document = (pdf_document_t*) document->data;
+    g_object_unref(pdf_document->document);
     free(document->data);
   }
 
@@ -73,6 +77,16 @@ pdf_document_index_generate(zathura_document_t* document)
 bool
 pdf_document_save_as(zathura_document_t* document, const char* path)
 {
+  if(!document || !document->data || !path) {
+    return false;
+  }
+
+  pdf_document_t* pdf_document = (pdf_document_t*) document->data;
+
+  char* file_path = g_strdup_printf("file://%s", path);
+  poppler_document_save(pdf_document->document, file_path, NULL);
+  g_free(file_path);
+
   return false;
 }
 
@@ -85,7 +99,41 @@ pdf_document_attachments_get(zathura_document_t* document)
 zathura_page_t*
 pdf_page_get(zathura_document_t* document, unsigned int page)
 {
+  if(!document || !document->data) {
+    return NULL;
+  }
+
+  pdf_document_t* pdf_document  = (pdf_document_t*) document->data;
+  zathura_page_t* document_page = malloc(sizeof(zathura_page_t));
+
+  if(!document_page) {
     return NULL;
+  }
+
+  document_page->document = document;
+  document_page->data     = poppler_document_get_page(pdf_document->document, page);
+
+  if(!document_page->data) {
+    free(document_page);
+    return NULL;
+  }
+
+  poppler_page_get_size(document_page->data, &(document_page->width), &(document_page->height));
+
+  return document_page;
+}
+
+bool
+pdf_page_free(zathura_page_t* page)
+{
+  if(!page) {
+    return false;
+  }
+
+  g_object_unref(page->data);
+  free(page);
+
+  return true;
 }
 
 zathura_list_t*
@@ -111,9 +159,3 @@ pdf_page_render(zathura_page_t* page)
 {
   return NULL;
 }
-
-bool
-pdf_page_free(zathura_page_t* page)
-{
-  return false;
-}

zathura.c

@@ -44,22 +44,32 @@ int main(int argc, char* argv[])
   gdk_threads_init();
   gtk_init(&argc, &argv);
 
-  /*if(!init_zathura()) {*/
-    /*printf("error: coult not initialize zathura\n");*/
-    /*return -1;*/
-  /*}*/
+  if(!init_zathura()) {
+    printf("error: coult not initialize zathura\n");
+    return -1;
+  }
 
   if(argc > 1) {
     zathura_document_t* document = zathura_document_open(argv[1], NULL);
+
     if(!document) {
       return -1;
     }
+
+    zathura_page_t* page = zathura_page_get(document, 0);
+
+    if(!page) {
+      zathura_document_free(document);
+      return -2;
+    }
+
+    zathura_page_free(page);
     zathura_document_free(document);
   }
 
-  /*gdk_threads_enter();*/
-  /*gtk_main();*/
-  /*gdk_threads_leave();*/
+  gdk_threads_enter();
+  gtk_main();
+  gdk_threads_leave();
 
   return 0;
 }