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From 99bff723291f5aa2558e5c8b475f496025105f4a Mon Sep 17 00:00:00 2001
From: Moritz Lipp <mlq@pwmt.org>
Date: Mon, 20 Apr 2015 00:30:54 +0200
Subject: [PATCH 6/6] Parse entries in the document information dictionary
---
document.c | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
plugin.c | 4 +--
2 files changed, 99 insertions(+), 3 deletions(-)
diff --git a/document.c b/document.c
index de805bb..873866c 100644
--- a/document.c
+++ b/document.c
@@ -6,8 +6,12 @@
#include <mupdf/xps.h>
#include <mupdf/pdf.h>
+#include <glib-2.0/glib.h>
+
#include "plugin.h"
+#define LENGTH(x) (sizeof(x)/sizeof((x)[0]))
+
zathura_error_t
pdf_document_open(zathura_document_t* document)
{
@@ -118,3 +122,97 @@ pdf_document_save_as(zathura_document_t* document, mupdf_document_t*
return ZATHURA_ERROR_OK;
}
+girara_list_t*
+pdf_document_get_information(zathura_document_t* document, mupdf_document_t*
+ mupdf_document, zathura_error_t* error)
+{
+ if (document == NULL || mupdf_document == NULL || error == NULL) {
+ if (error != NULL) {
+ *error = ZATHURA_ERROR_INVALID_ARGUMENTS;
+ }
+ }
+
+ girara_list_t* list = zathura_document_information_entry_list_new();
+ if (list == NULL) {
+ if (error != NULL) {
+ *error = ZATHURA_ERROR_UNKNOWN;
+ }
+ return NULL;
+ }
+
+ fz_try (mupdf_document->ctx) {
+ pdf_obj* trailer = pdf_trailer(mupdf_document->ctx, (pdf_document*) mupdf_document->document);
+ pdf_obj* info_dict = pdf_dict_get(mupdf_document->ctx, trailer, PDF_NAME_Info);
+
+ /* get string values */
+ typedef struct info_value_s {
+ const char* property;
+ zathura_document_information_type_t type;
+ } info_value_t;
+
+ static const info_value_t string_values[] = {
+ { "Title", ZATHURA_DOCUMENT_INFORMATION_TITLE },
+ { "Author", ZATHURA_DOCUMENT_INFORMATION_AUTHOR },
+ { "Subject", ZATHURA_DOCUMENT_INFORMATION_SUBJECT },
+ { "Keywords", ZATHURA_DOCUMENT_INFORMATION_KEYWORDS },
+ { "Creator", ZATHURA_DOCUMENT_INFORMATION_CREATOR },
+ { "Producer", ZATHURA_DOCUMENT_INFORMATION_PRODUCER }
+ };
+
+ for (unsigned int i = 0; i < LENGTH(string_values); i++) {
+ pdf_obj* value = pdf_dict_gets(mupdf_document->ctx, info_dict, string_values[i].property);
+ if (value == NULL) {
+ continue;
+ }
+
+ char* str_value = pdf_to_str_buf(mupdf_document->ctx, value);
+ if (str_value == NULL || strlen(str_value) == 0) {
+ continue;
+ }
+
+ zathura_document_information_entry_t* entry =
+ zathura_document_information_entry_new(
+ string_values[i].type,
+ str_value
+ );
+
+ if (entry != NULL) {
+ girara_list_append(list, entry);
+ }
+ }
+
+ static const info_value_t time_values[] = {
+ { "CreationDate", ZATHURA_DOCUMENT_INFORMATION_CREATION_DATE },
+ { "ModDate", ZATHURA_DOCUMENT_INFORMATION_MODIFICATION_DATE }
+ };
+
+ for (unsigned int i = 0; i < LENGTH(time_values); i++) {
+ pdf_obj* value = pdf_dict_gets(mupdf_document->ctx, info_dict, time_values[i].property);
+ if (value == NULL) {
+ continue;
+ }
+
+ char* str_value = pdf_to_str_buf(mupdf_document->ctx, value);
+ if (str_value == NULL || strlen(str_value) == 0) {
+ continue;
+ }
+
+ zathura_document_information_entry_t* entry =
+ zathura_document_information_entry_new(
+ time_values[i].type,
+ str_value // FIXME: Convert to common format
+ );
+
+ if (entry != NULL) {
+ girara_list_append(list, entry);
+ }
+ }
+ } fz_catch (mupdf_document->ctx) {
+ if (error != NULL) {
+ *error = ZATHURA_ERROR_UNKNOWN;
+ }
+ return NULL;
+ }
+
+ return list;
+}
diff --git a/plugin.c b/plugin.c
index fef2c6a..2efae6f 100644
--- a/plugin.c
+++ b/plugin.c
@@ -11,13 +11,11 @@ register_functions(zathura_plugin_functions_t* functions)
functions->document_free = (zathura_plugin_document_free_t) pdf_document_free;
functions->document_save_as = (zathura_plugin_document_save_as_t) pdf_document_save_as;
functions->document_index_generate = (zathura_plugin_document_index_generate_t) pdf_document_index_generate;
+ functions->document_get_information = (zathura_plugin_document_get_information_t) pdf_document_get_information;
functions->page_init = (zathura_plugin_page_init_t) pdf_page_init;
functions->page_clear = (zathura_plugin_page_clear_t) pdf_page_clear;
functions->page_search_text = (zathura_plugin_page_search_text_t) pdf_page_search_text;
functions->page_links_get = (zathura_plugin_page_links_get_t) pdf_page_links_get;
-#if 0
- functions->document_get_information = (zathura_plugin_document_get_information_t) pdf_document_get_information;
-#endif
functions->page_images_get = (zathura_plugin_page_images_get_t) pdf_page_images_get;
functions->page_get_text = (zathura_plugin_page_get_text_t) pdf_page_get_text;
functions->page_render = (zathura_plugin_page_render_t) pdf_page_render;
--
1.8.4
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