netsurf/render/html.h
John Mark Bell b2242ae0f0 [project @ 2004-03-24 20:10:03 by jmb]
Remove need for XML parse tree to be kept in memory.
The source document is now reparsed when saving complete.

svn path=/import/netsurf/; revision=662
2004-03-24 20:10:03 +00:00

108 lines
3.5 KiB
C

/*
* This file is part of NetSurf, http://netsurf.sourceforge.net/
* Licensed under the GNU General Public License,
* http://www.opensource.org/licenses/gpl-license
* Copyright 2004 James Bursa <bursa@users.sourceforge.net>
*/
/** \file
* Content for text/html (interface).
*
* These functions should in general be called via the content interface.
*/
#ifndef _NETSURF_RENDER_HTML_H_
#define _NETSURF_RENDER_HTML_H_
#include "libxml/HTMLparser.h"
#include "netsurf/content/content_type.h"
#include "netsurf/css/css.h"
#include "netsurf/utils/pool.h"
struct box;
struct browser_window;
struct content;
struct object_params;
struct box_position {
struct box *box;
int actual_box_x;
int actual_box_y;
int plot_index;
int pixel_offset;
int char_offset;
};
/** Data specific to CONTENT_HTML. */
struct content_html_data {
htmlParserCtxt *parser; /**< HTML parser context. */
xmlCharEncoding encoding; /**< Encoding of source. */
bool getenc; /**< Need to get the encoding from the document, as server is broken. */
char *base_url; /**< Base URL (may be a copy of content->url). */
struct box *layout; /**< Box tree, or 0. */
colour background_colour; /**< Document background colour. */
/** Number of entries in stylesheet_content. */
unsigned int stylesheet_count;
/** Stylesheets. Each may be 0. Stylesheet 0 is the base style sheet,
* stylesheet 1 is any <style> elements (not cached). */
struct content **stylesheet_content;
struct css_style *style; /**< Base style. */
struct {
struct box_position start;
struct box_position end;
enum { alter_UNKNOWN, alter_START, alter_END } altering;
int selected; /* 0 = unselected, 1 = selected */
} text_selection;
struct font_set *fonts; /**< Set of fonts. */
/** Number of entries in object. */
unsigned int object_count;
/** Objects. Each may be 0. */
struct {
char *url; /**< URL of this object. */
struct content *content; /**< Content, or 0. */
struct box *box; /**< Node in box tree containing it. */
/** Pointer to array of permitted content_type, terminated by
* CONTENT_UNKNOWN, or 0 if any type is acceptable. */
const content_type *permitted_types;
} *object;
pool box_pool; /**< Memory pool for box tree. */
pool string_pool; /**< Memory pool for strings. */
};
void html_create(struct content *c, const char *params[]);
void html_process_data(struct content *c, char *data, unsigned long size);
int html_convert(struct content *c, unsigned int width, unsigned int height);
void html_revive(struct content *c, unsigned int width, unsigned int height);
void html_reformat(struct content *c, unsigned int width, unsigned int height);
void html_destroy(struct content *c);
void html_fetch_object(struct content *c, char *url, struct box *box,
const content_type *permitted_types);
/* in riscos/htmlinstance.c */
void html_add_instance(struct content *c, struct browser_window *bw,
struct content *page, struct box *box,
struct object_params *params, void **state);
void html_reshape_instance(struct content *c, struct browser_window *bw,
struct content *page, struct box *box,
struct object_params *params, void **state);
void html_remove_instance(struct content *c, struct browser_window *bw,
struct content *page, struct box *box,
struct object_params *params, void **state);
/* in riscos/htmlredraw.c */
void html_redraw(struct content *c, long x, long y,
unsigned long width, unsigned long height,
long clip_x0, long clip_y0, long clip_x1, long clip_y1,
float scale);
#endif