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/*
* Copyright 2004 James Bursa <bursa@users.sourceforge.net>
* Copyright 2004 John M Bell <jmb202@ecs.soton.ac.uk>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* \file
* implementation of content handling for PDF.
*
* This implementation uses the netsurf pdf library.
*/
#include <stdbool.h>
#include <stdlib.h>
#include <nspdf/document.h>
#include <nspdf/meta.h>
#include "utils/utils.h"
#include "content/llcache.h"
#include "content/content_protected.h"
#include "pdf.h"
typedef struct pdf_content {
struct content base;
struct nspdf_doc *doc;
} pdf_content;
static nserror nspdf2nserr(nspdferror nspdferr)
{
nserror res;
switch (nspdferr) {
case NSPDFERROR_OK:
res = NSERROR_OK;
break;
case NSPDFERROR_NOMEM:
res = NSERROR_NOMEM;
break;
default:
res = NSERROR_UNKNOWN;
break;
}
return res;
}
/**
* Content create entry point.
*/
static nserror
pdf_create(const content_handler *handler,
lwc_string *imime_type,
const struct http_parameter *params,
llcache_handle *llcache,
const char *fallback_charset,
bool quirks,
struct content **c)
{
struct pdf_content *pdfc;
nserror res;
nspdferror pdfres;
pdfc = calloc(1, sizeof(struct pdf_content));
if (pdfc == NULL) {
return NSERROR_NOMEM;
}
res = content__init(&pdfc->base,
handler,
imime_type,
params,
llcache,
fallback_charset,
quirks);
if (res != NSERROR_OK) {
free(pdfc);
return res;
}
pdfres = nspdf_document_create(&pdfc->doc);
if (pdfres != NSPDFERROR_OK) {
free(pdfc);
return nspdf2nserr(res);
}
*c = (struct content *)pdfc;
return NSERROR_OK;
}
/* exported interface documented in image_cache.h */
static void pdf_destroy(struct content *c)
{
struct pdf_content *pdfc = (struct pdf_content *)c;
nspdf_document_destroy(pdfc->doc);
}
static bool pdf_convert(struct content *c)
{
struct pdf_content *pdfc = (struct pdf_content *)c;
nspdferror pdfres;
const uint8_t *content_data;
unsigned long content_length;
struct lwc_string_s *title;
content_data = (const uint8_t *)content__get_source_data(c,
&content_length);
pdfres = nspdf_document_parse(pdfc->doc,
content_data,
content_length);
if (pdfres != NSPDFERROR_OK) {
content_broadcast_errorcode(c, NSERROR_INVALID);
return false;
}
pdfres = nspdf_get_title(pdfc->doc, &title);
if (pdfres == NSPDFERROR_OK) {
content__set_title(c, lwc_string_data(title));
}
content_set_ready(c);
content_set_done(c);
return true;
}
/* exported interface documented in image_cache.h */
static bool
pdf_redraw(struct content *c,
struct content_redraw_data *data,
const struct rect *clip,
const struct redraw_context *ctx)
{
return true;
}
/**
* Clone content.
*/
static nserror pdf_clone(const struct content *old, struct content **newc)
{
return NSERROR_NOMEM;
}
static content_type pdf_content_type(void)
{
return CONTENT_PDF;
}
static const content_handler nspdf_content_handler = {
.create = pdf_create,
.data_complete = pdf_convert,
.destroy = pdf_destroy,
.redraw = pdf_redraw,
.clone = pdf_clone,
.type = pdf_content_type,
.no_share = false,
};
static const char *nspdf_types[] = {
"application/pdf",
"application/x-pdf",
"application/acrobat",
"applications/vnd.pdf",
"text/pdf",
"text/x-pdf"
};
CONTENT_FACTORY_REGISTER_TYPES(nspdf, nspdf_types, nspdf_content_handler);
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