Show document information

commands.c

@@ -1,11 +1,15 @@
 /* See LICENSE file for license and copyright information */
 
+#include <string.h>
+
 #include "commands.h"
 #include "bookmarks.h"
 #include "database.h"
+#include "document.h"
 #include "zathura.h"
 #include "print.h"
 #include "document.h"
+#include "utils.h"
 
 bool
 cmd_bookmark_create(girara_session_t* UNUSED(session), girara_list_t*
@@ -65,10 +69,61 @@ cmd_close(girara_session_t* session, girara_list_t* UNUSED(argument_list))
 }
 
 bool
-cmd_info(girara_session_t* UNUSED(session), girara_list_t*
-    UNUSED(argument_list))
+cmd_info(girara_session_t* session, girara_list_t* UNUSED(argument_list))
 {
-  return true;
+  g_return_val_if_fail(session != NULL, false);
+  g_return_val_if_fail(session->global.data != NULL, false);
+  zathura_t* zathura = session->global.data;
+  if (zathura->document == NULL) {
+    girara_notify(session, GIRARA_ERROR, "No document opened.");
+    return false;
+  }
+
+  struct meta_field {
+    char* name;
+    zathura_document_meta_t field;
+  };
+
+  struct meta_field meta_fields[] = {
+    { "Title",            ZATHURA_DOCUMENT_TITLE },
+    { "Author",           ZATHURA_DOCUMENT_AUTHOR },
+    { "Subject",          ZATHURA_DOCUMENT_SUBJECT },
+    { "Keywords",         ZATHURA_DOCUMENT_KEYWORDS },
+    { "Creator",          ZATHURA_DOCUMENT_CREATOR },
+    { "Producer",         ZATHURA_DOCUMENT_PRODUCER },
+    { "Creation date",    ZATHURA_DOCUMENT_CREATION_DATE },
+    { "Modiciation date", ZATHURA_DOCUMENT_MODIFICATION_DATE }
+  };
+
+  GString* string = g_string_new(NULL);
+  if (string == NULL) {
+    return true;
+  }
+
+  for (unsigned int i = 0; i < LENGTH(meta_fields); i++) {
+    char* tmp = zathura_document_meta_get(zathura->document, meta_fields[i].field);
+    if (tmp != NULL) {
+      char* text = g_strdup_printf("<b>%s:</b> %s\n", meta_fields[i].name, tmp);
+      if (text == NULL) {
+        g_free(tmp);
+        return true;
+      }
+
+      g_string_append(string, text);
+
+      g_free(text);
+      g_free(tmp);
+    }
+  }
+
+  if (strlen(string->str) > 0) {
+    g_string_erase(string, strlen(string->str) - 1, 1);
+    girara_notify(session, GIRARA_INFO, string->str);
+  }
+
+  g_string_free(string, TRUE);
+
+  return false;
 }
 
 bool

document.c

@@ -20,8 +20,7 @@
 #include "utils.h"
 #include "zathura.h"
 #include "render.h"
-
-#define LENGTH(x) (sizeof(x)/sizeof((x)[0]))
+#include "utils.h"
 
 void
 zathura_document_plugins_load(zathura_t* zathura)
@@ -353,6 +352,21 @@ zathura_document_attachments_free(zathura_list_t* UNUSED(list))
   return false;
 }
 
+char*
+zathura_document_meta_get(zathura_document_t* document, zathura_document_meta_t meta)
+{
+  if (document == NULL) {
+    return NULL;
+  }
+
+  if (document->functions.document_meta_get == NULL) {
+    girara_error("%s not implemented", __FUNCTION__);
+    return NULL;
+  }
+
+  return document->functions.document_meta_get(document, meta);
+}
+
 zathura_page_t*
 zathura_page_get(zathura_document_t* document, unsigned int page_id)
 {

document.h

@@ -33,6 +33,18 @@ typedef struct zathura_type_plugin_mapping_s
   zathura_document_plugin_t* plugin;
 } zathura_type_plugin_mapping_t;
 
+typedef enum zathura_document_meta_e
+{
+  ZATHURA_DOCUMENT_TITLE,
+  ZATHURA_DOCUMENT_AUTHOR,
+  ZATHURA_DOCUMENT_SUBJECT,
+  ZATHURA_DOCUMENT_KEYWORDS,
+  ZATHURA_DOCUMENT_CREATOR,
+  ZATHURA_DOCUMENT_PRODUCER,
+  ZATHURA_DOCUMENT_CREATION_DATE,
+  ZATHURA_DOCUMENT_MODIFICATION_DATE
+} zathura_document_meta_t;
+
 /**
  * Function prototype that is called to register a document plugin
  *
@@ -195,6 +207,11 @@ struct zathura_document_s
      */
     zathura_list_t* (*document_attachments_get)(zathura_document_t* document);
 
+    /**
+     * Get document information
+     */
+    char* (*document_meta_get)(zathura_document_t* document, zathura_document_meta_t info);
+
     /**
      * Gets the page object
      */
@@ -307,6 +324,15 @@ zathura_list_t* zathura_document_attachments_get(zathura_document_t* document);
  */
 bool zathura_document_attachments_free(zathura_list_t* list);
 
+/**
+ * Returns a string of the requested information
+ *
+ * @param document The zathura document
+ * @param meta The information field
+ * @return String or NULL if information could not be retreived
+ */
+char* zathura_document_meta_get(zathura_document_t* document, zathura_document_meta_t meta);
+
 /**
  * Get the page object
  *

utils.h

@@ -9,6 +9,8 @@
 
 #include "document.h"
 
+#define LENGTH(x) (sizeof(x)/sizeof((x)[0]))
+
 typedef struct page_offset_s
 {
   int x;

zathura.c

@@ -63,7 +63,7 @@ zathura_init(int argc, char* argv[])
 
   /* plugins */
   zathura->plugins.plugins = girara_list_new();
-  girara_list_set_free_function(zathura->plugins.plugins, 
+  girara_list_set_free_function(zathura->plugins.plugins,
       (girara_free_function_t)zathura_document_plugin_free);
   zathura->plugins.path    = girara_list_new();
   girara_list_set_free_function(zathura->plugins.path, g_free);