Update document definition

ft/document.c

@@ -1,25 +1,131 @@
 /* See LICENSE file for license and copyright information */
 
 #include <stdlib.h>
+#include <stdio.h>
 
 #include "document.h"
 
+zathura_document_t*
+zathura_document_create(const char* path)
+{
+  return NULL;
+}
+
+bool
+zathura_document_free(zathura_document_t* document)
+{
+  if(!document) {
+    return NULL;
+  }
+
+  if(!document->functions.document_free(document)) {
+    fprintf(stderr, "error: %s not implemented\n", __FUNCTION__);
+    return NULL;
+  }
+
+  return document->functions.document_free(document);
+}
+
+bool
+zathura_document_save_as(zathura_document_t* document, const char* path)
+{
+  if(!document || !path) {
+    return false;
+  }
+
+  if(!document->functions.document_save_as) {
+    fprintf(stderr, "error: %s not implemented\n", __FUNCTION__);
+    return false;
+  }
+
+  return document->functions.document_save_as(document, path);
+}
+
+zathura_list_t*
+zathura_document_index_generate(zathura_document_t* document)
+{
+  if(!document) {
+    return NULL;
+  }
+
+  if(!document->functions.document_index_generate) {
+    fprintf(stderr, "error: %s not implemented\n", __FUNCTION__);
+    return NULL;
+  }
+
+  return document->functions.document_index_generate(document);
+}
+
+bool
+zathura_document_index_free(zathura_list_t* list)
+{
+  return false;
+}
+
+zathura_list_t*
+zathura_document_attachments_get(zathura_document_t* document)
+{
+  if(!document) {
+    return NULL;
+  }
+
+  if(!document->functions.document_attachments_get) {
+    fprintf(stderr, "error: %s not implemented\n", __FUNCTION__);
+    return NULL;
+  }
+
+  return document->functions.document_attachments_get(document);
+}
+
+bool
+zathura_document_attachments_free(zathura_list_t* list)
+{
+  return false;
+}
+
 zathura_page_t*
 zathura_page_get(zathura_document_t* document, unsigned int page)
 {
-  return NULL;
+  if(!document) {
+    return NULL;
+  }
+
+  if(!document->functions.page_get) {
+    fprintf(stderr, "error: %s not implemented\n", __FUNCTION__);
+    return NULL;
+  }
+
+  return document->functions.page_get(document, page);
 }
 
 zathura_list_t*
 zathura_page_search_text(zathura_page_t* page, const char* text)
 {
-  return NULL;
+  if(!page || !page->document || !text) {
+    return NULL;
+  }
+
+  if(!page->document->functions.page_search_text) {
+    fprintf(stderr, "error: %s not implemented\n", __FUNCTION__);
+    return NULL;
+  }
+
+  return page->document->functions.page_search_text(page, text);
 }
 
 zathura_list_t*
 zathura_page_links_get(zathura_page_t* page)
 {
-  return NULL;
+  if(!page || !page->document) {
+    return NULL;
+  }
+
+  if(!page->document->functions.page_links_get) {
+    fprintf(stderr, "error: %s not implemented\n", __FUNCTION__);
+    return NULL;
+  }
+
+  return page->document->functions.page_links_get(page);
 }
 
 bool
@@ -31,7 +137,16 @@ zathura_page_links_free(zathura_list_t* list)
 zathura_list_t*
 zathura_page_form_fields_get(zathura_page_t* page)
 {
-  return NULL;
+  if(!page || !page->document) {
+    return NULL;
+  }
+
+  if(!page->document->functions.page_form_fields_get) {
+    fprintf(stderr, "error: %s not implemented\n", __FUNCTION__);
+    return NULL;
+  }
+
+  return page->document->functions.page_form_fields_get(page);
 }
 
 bool
@@ -43,35 +158,14 @@ zathura_page_form_fields_free(zathura_list_t* list)
 cairo_surface_t*
 zathura_page_render(zathura_page_t* page)
 {
-  return NULL;
+  if(!page || !page->document) {
-}
+    return NULL;
+  }
 
-zathura_list_t*
+  if(!page->document->functions.page_render) {
-zathura_document_index_generate(zathura_document_t* document)
+    fprintf(stderr, "error: %s not implemented\n", __FUNCTION__);
-{
+    return NULL;
-  return NULL;
+  }
-}
 
-bool
+  return page->document->functions.page_render(page);
-zathura_document_index_free(zathura_list_t* list)
-{
-  return false;
-}
-
-bool
-zathura_document_save_as(zathura_document_t* document, const char* path)
-{
-  return false;
-}
-
-zathura_list_t*
-zathura_document_attachments_get(zathura_document_t* document)
-{
-  return NULL;
-}
-
-bool
-zathura_document_attachments_free(zathura_list_t* list)
-{
-  return false;
 }

ft/document.h

@@ -80,9 +80,18 @@ struct zathura_document_s
     zathura_list_t* (*document_index_generate)(zathura_document_t* document);
     bool (*document_save_as)(zathura_document_t* document, const char* path);
     zathura_list_t* (*document_attachments_get)(zathura_document_t* document);
+    bool (*document_free)(zathura_document_t* document);
   } functions;
 };
 
+zathura_document_t* zathura_document_create(const char* path);
+bool zathura_document_free(zathura_document_t* document);
+bool zathura_document_save_as(zathura_document_t* document, const char* path);
+zathura_list_t* zathura_document_index_generate(zathura_document_t* document);
+bool zathura_document_index_free(zathura_list_t* list);
+zathura_list_t* zathura_document_attachments_get(zathura_document_t* document);
+bool zathura_document_attachments_free(zathura_list_t* list);
+
 zathura_page_t* zathura_page_get(zathura_document_t* document, unsigned int page);
 zathura_list_t* zathura_page_search_text(zathura_page_t* page, const char* text);
 zathura_list_t* zathura_page_links_get(zathura_page_t* page);
@@ -91,10 +100,4 @@ zathura_list_t* zathura_page_form_fields_get(zathura_page_t* page);
 bool zathura_page_form_fields_free(zathura_list_t* list);
 cairo_surface_t* zathura_page_render(zathura_page_t* page);
 
-zathura_list_t* zathura_document_index_generate(zathura_document_t* document);
-bool zathura_document_index_free(zathura_list_t* list);
-bool zathura_document_save_as(zathura_document_t* document, const char* path);
-zathura_list_t* zathura_document_attachments_get(zathura_document_t* document);
-bool zathura_document_attachments_free(zathura_list_t* list);
-
 #endif // DOCUMENT_H