/*
* Copyright 2006 Richard Wilson <info@tinct.net>
*
* 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
* Content for image/ico (implementation)
*/
#include <assert.h>
#include <string.h>
#include <stdbool.h>
#include <stdlib.h>
#include <libnsbmp.h>
#include "utils/config.h"
#include "content/content_protected.h"
#include "content/hlcache.h"
#include "desktop/plotters.h"
#include "image/bitmap.h"
#include "image/bmp.h"
#include "image/ico.h"
#include "image/image.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "utils/utils.h"
typedef struct nsico_content {
struct content base;
struct ico_collection *ico; /** ICO collection data */
} nsico_content;
static nserror nsico_create_ico_data(nsico_content *c)
{
union content_msg_data msg_data;
c
->ico
= calloc(sizeof(ico_collection
), 1); if (c->ico == NULL) {
msg_data.error = messages_get("NoMemory");
content_broadcast(&c->base, CONTENT_MSG_ERROR, msg_data);
return NSERROR_NOMEM;
}
ico_collection_create(c->ico, &bmp_bitmap_callbacks);
return NSERROR_OK;
}
static nserror nsico_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)
{
nsico_content *result;
nserror error;
result
= calloc(1, sizeof(nsico_content
)); if (result == NULL)
return NSERROR_NOMEM;
error = content__init(&result->base, handler, imime_type, params,
llcache, fallback_charset, quirks);
if (error != NSERROR_OK) {
return error;
}
error = nsico_create_ico_data(result);
if (error != NSERROR_OK) {
return error;
}
*c = (struct content *) result;
return NSERROR_OK;
}
static bool nsico_convert(struct content *c)
{
nsico_content *ico = (nsico_content *) c;
struct bmp_image *bmp;
bmp_result res;
union content_msg_data msg_data;
const char *data;
unsigned long size;
char *title;
/* set the ico data */
data = content__get_source_data(c, &size);
/* analyse the ico */
res = ico_analyse(ico->ico, size, (unsigned char *) data);
switch (res) {
case BMP_OK:
break;
case BMP_INSUFFICIENT_MEMORY:
msg_data.error = messages_get("NoMemory");
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
case BMP_INSUFFICIENT_DATA:
case BMP_DATA_ERROR:
msg_data.error = messages_get("BadICO");
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
/* Store our content width, height and calculate size */
c->width = ico->ico->width;
c->height = ico->ico->height;
c->size += (ico->ico->width * ico->ico->height * 4) + 16 + 44;
/* set title text */
title = messages_get_buff("ICOTitle",
nsurl_access_leaf(llcache_handle_get_url(c->llcache)),
c->width, c->height);
if (title != NULL) {
content__set_title(c, title);
}
/* select largest icon to ensure one can be selected */
bmp = ico_find(ico->ico, 255, 255);
if (bmp == NULL) {
/* return error */
LOG(("Failed to select icon"));
return false;
}
content_set_ready(c);
content_set_done(c);
/* Done: update status bar */
content_set_status(c, "");
return true;
}
static bool nsico_redraw(struct content *c, struct content_redraw_data *data,
const struct rect *clip, const struct redraw_context *ctx)
{
nsico_content *ico = (nsico_content *)c;
struct bmp_image *bmp;
/* select most appropriate sized icon for size */
bmp = ico_find(ico->ico, data->width, data->height);
if (bmp == NULL) {
/* return error */
LOG(("Failed to select icon"));
return false;
}
/* ensure its decided */
if (bmp->decoded == false) {
if (bmp_decode(bmp) != BMP_OK) {
return false;
} else {
LOG(("Decoding bitmap"));
bitmap_modified(bmp->bitmap);
}
}
return image_bitmap_plot(bmp->bitmap, data, clip, ctx);
}
static void nsico_destroy(struct content *c)
{
nsico_content *ico = (nsico_content *) c;
ico_finalise(ico->ico);
}
static nserror nsico_clone(const struct content *old, struct content **newc)
{
nsico_content *ico;
nserror error;
ico
= calloc(1, sizeof(nsico_content
)); if (ico == NULL)
return NSERROR_NOMEM;
error = content__clone(old, &ico->base);
if (error != NSERROR_OK) {
content_destroy(&ico->base);
return error;
}
/* Simply replay creation and conversion */
error = nsico_create_ico_data(ico);
if (error != NSERROR_OK) {
content_destroy(&ico->base);
return error;
}
if (old->status == CONTENT_STATUS_READY ||
old->status == CONTENT_STATUS_DONE) {
if (nsico_convert(&ico->base) == false) {
content_destroy(&ico->base);
return NSERROR_CLONE_FAILED;
}
}
*newc = (struct content *) ico;
return NSERROR_OK;
}
static void *nsico_get_internal(const struct content *c, void *context)
{
nsico_content *ico = (nsico_content *) c;
/* TODO: Pick best size for purpose.
* Currently assumes it's for a URL bar. */
struct bmp_image *bmp;
bmp = ico_find(ico->ico, 16, 16);
if (bmp == NULL) {
/* return error */
LOG(("Failed to select icon"));
return NULL;
}
if (bmp->decoded == false) {
if (bmp_decode(bmp) != BMP_OK) {
return NULL;
} else {
bitmap_modified(bmp->bitmap);
}
}
return bmp->bitmap;
}
static content_type nsico_content_type(void)
{
return CONTENT_IMAGE;
}
static const content_handler nsico_content_handler = {
.create = nsico_create,
.data_complete = nsico_convert,
.destroy = nsico_destroy,
.redraw = nsico_redraw,
.clone = nsico_clone,
.get_internal = nsico_get_internal,
.type = nsico_content_type,
.no_share = false,
};
static const char *nsico_types[] = {
"application/ico",
"application/x-ico",
"image/ico",
"image/vnd.microsoft.icon",
"image/x-icon"
};
CONTENT_FACTORY_REGISTER_TYPES(nsico, nsico_types, nsico_content_handler);