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/**
* $Id: html.c,v 1.7 2003/04/04 15:19:31 bursa Exp $
*/
#include <assert.h>
#include <string.h>
#include <stdlib.h>
#include "netsurf/content/fetch.h"
#include "netsurf/content/fetchcache.h"
#include "netsurf/desktop/gui.h"
#include "netsurf/render/html.h"
#include "netsurf/render/layout.h"
#include "netsurf/utils/utils.h"
#include "netsurf/utils/log.h"
static void html_convert_callback(fetchcache_msg msg, struct content *css,
void *p, const char *error);
static void html_title(struct content *c);
void html_create(struct content *c)
{
c->data.html.parser = htmlCreatePushParserCtxt(0, 0, "", 0, 0, XML_CHAR_ENCODING_8859_1);
c->data.html.document = NULL;
c->data.html.markup = NULL;
c->data.html.layout = NULL;
c->data.html.stylesheet = NULL;
c->data.html.style = NULL;
c->data.html.fonts = NULL;
}
#define CHUNK 4096
void html_process_data(struct content *c, char *data, unsigned long size)
{
unsigned long x;
for (x = 0; x + CHUNK <= size; x += CHUNK) {
htmlParseChunk(c->data.html.parser, data + x, CHUNK, 0);
gui_multitask();
}
htmlParseChunk(c->data.html.parser, data + x, (int) (size - x), 0);
}
int html_convert(struct content *c, unsigned int width, unsigned int height)
{
struct css_selector* selector = xcalloc(1, sizeof(struct css_selector));
htmlParseChunk(c->data.html.parser, "", 0, 1);
c->data.html.document = c->data.html.parser->myDoc;
/*xmlDebugDumpDocument(stderr, c->data.html.parser->myDoc);*/
LOG(("Skipping to html"));
if (c->data.html.document == NULL) {
LOG(("There is no document!"));
return 1;
}
for (c->data.html.markup = c->data.html.document->children;
c->data.html.markup != 0 && c->data.html.markup->type != XML_ELEMENT_NODE;
c->data.html.markup = c->data.html.markup->next)
;
if (c->data.html.markup == 0) {
LOG(("No markup"));
return 1;
}
if (stricmp((const char *) c->data.html.markup->name, "html")) {
LOG(("Not html"));
return 1;
}
html_title(c);
c->error = 0;
c->active = 0;
fetchcache("file:///%3CNetSurf$Dir%3E/Resources/CSS", 0,
html_convert_callback, c, width, height);
c->active++;
while (c->active != 0) {
fetch_poll();
gui_multitask();
}
if (c->error) {
/* TODO: clean up */
return 1;
}
LOG(("Copying base style"));
c->data.html.style = xcalloc(1, sizeof(struct css_style));
memcpy(c->data.html.style, &css_base_style, sizeof(struct css_style));
LOG(("Creating box"));
c->data.html.layout = xcalloc(1, sizeof(struct box));
c->data.html.layout->type = BOX_BLOCK;
c->data.html.layout->node = c->data.html.markup;
c->data.html.fonts = font_new_set();
LOG(("XML to box"));
xml_to_box(c->data.html.markup, c->data.html.style, c->data.html.stylesheet,
&selector, 0, c->data.html.layout, 0, 0, c->data.html.fonts,
0, 0, 0, 0, &c->data.html.elements);
/*box_dump(c->data.html.layout->children, 0);*/
LOG(("Layout document"));
layout_document(c->data.html.layout->children, width);
/*box_dump(c->data.html.layout->children, 0);*/
c->width = c->data.html.layout->children->width;
c->height = c->data.html.layout->children->height;
return 0;
}
void html_convert_callback(fetchcache_msg msg, struct content *css,
void *p, const char *error)
{
struct content *c = p;
switch (msg) {
case FETCHCACHE_OK:
/* TODO: store struct content *css somewhere in c */
c->data.html.stylesheet = css->data.css;
c->active--;
break;
case FETCHCACHE_BADTYPE:
case FETCHCACHE_ERROR:
c->active--;
c->error = 1;
break;
case FETCHCACHE_STATUS:
/* TODO: need to add a way of sending status to the
* owning window */
break;
default:
assert(0);
}
}
void html_title(struct content *c)
{
xmlNode *node = c->data.html.markup;
c->title = 0;
while (node != 0) {
if (node->type == XML_ELEMENT_NODE) {
if (stricmp(node->name, "html") == 0) {
node = node->children;
continue;
}
if (stricmp(node->name, "head") == 0) {
node = node->children;
continue;
}
if (stricmp(node->name, "title") == 0) {
c->title = xmlNodeGetContent(node);
return;
}
}
node = node->next;
}
}
void html_revive(struct content *c, unsigned int width, unsigned int height)
{
/* TODO: reload stylesheets and images and fix any pointers to them */
layout_document(c->data.html.layout->children, width);
c->width = c->data.html.layout->children->width;
c->height = c->data.html.layout->children->height;
}
void html_reformat(struct content *c, unsigned int width, unsigned int height)
{
layout_document(c->data.html.layout->children, width);
c->width = c->data.html.layout->children->width;
c->height = c->data.html.layout->children->height;
}
void html_destroy(struct content *c)
{
LOG(("content %p", c));
htmlFreeParserCtxt(c->data.html.parser);
if (c->data.html.document != 0)
xmlFreeDoc(c->data.html.document);
if (c->data.html.layout != 0)
box_free(c->data.html.layout);
if (c->data.html.fonts != 0)
font_free_set(c->data.html.fonts);
if (c->title != 0)
xfree(c->title);
/* TODO: stylesheets */
}
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