summaryrefslogtreecommitdiff
path: root/content/handlers/html/html.h
blob: 691e969a50fcba2ba5d84f2ae8df4c08d4f2669f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
/*
 * Copyright 2004 James Bursa <bursa@users.sourceforge.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
 * Interface to text/html content handler.
 *
 * These functions should in general be called via the content interface.
 */

#ifndef NETSURF_HTML_HTML_H
#define NETSURF_HTML_HTML_H

#include <stdbool.h>

#include <dom/dom.h>
#include <dom/bindings/hubbub/parser.h>

#include "netsurf/types.h"
#include "netsurf/content_type.h"
#include "netsurf/browser_window.h"
#include "netsurf/mouse.h"
#include "desktop/frame_types.h"

struct fetch_multipart_data;
struct box;
struct rect;
struct browser_window;
struct content;
struct hlcache_handle;
struct http_parameter;
struct imagemap;
struct object_params;
struct plotters;
struct textarea;
struct scrollbar;
struct scrollbar_msg_data;
struct search_context;
struct selection;
struct nsurl;
struct plot_font_style;

/**
 * Container for stylesheets used by an HTML document
 */
struct html_stylesheet {
	struct dom_node *node; /**< dom node associated with sheet */
	struct hlcache_handle *sheet;
	bool modified;
	bool unused;
};

/**
 * Container for scripts used by an HTML document
 */
struct html_script {
	/** Type of script */
	enum html_script_type { HTML_SCRIPT_INLINE,
				HTML_SCRIPT_SYNC,
				HTML_SCRIPT_DEFER,
				HTML_SCRIPT_ASYNC } type;
	union {
		struct hlcache_handle *handle;
		struct dom_string *string;
	} data;	/**< Script data */
	struct dom_string *mimetype;
	struct dom_string *encoding;
	bool already_started;
	bool parser_inserted;
	bool force_async;
	bool ready_exec;
	bool async;
	bool defer;
};


/**
 * An object (img, object, etc. tag) in a CONTENT_HTML document.
 */
struct content_html_object {
	struct content *parent;		/**< Parent document */
	struct content_html_object *next; /**< Next in chain */

	struct hlcache_handle *content;  /**< Content, or 0. */
	struct box *box;  /**< Node in box tree containing it. */
	/** Bitmap of acceptable content types */
	content_type permitted_types;
	bool background;  /**< This object is a background image. */
};

struct html_scrollbar_data {
	struct content *c;
	struct box *box;
};

/** Frame tree (frameset or frame tag) */
struct content_html_frames {
	int cols;	/** number of columns in frameset */
	int rows;	/** number of rows in frameset */

	struct frame_dimension width;	/** frame width */
	struct frame_dimension height;	/** frame width */
	int margin_width;	/** frame margin width */
	int margin_height;	/** frame margin height */

	char *name;	/** frame name (for targetting) */
	struct nsurl *url;	/** frame url */

	bool no_resize;	/** frame is not resizable */
	browser_scrolling scrolling;	/** scrolling characteristics */
	bool border;	/** frame has a border */
	colour border_colour;	/** frame border colour */

	struct content_html_frames *children; /** [cols * rows] children */
};

/** Inline frame list (iframe tag) */
struct content_html_iframe {
	struct box *box;

	int margin_width;	/** frame margin width */
	int margin_height;	/** frame margin height */

	char *name;	/** frame name (for targetting) */
	struct nsurl *url;	/** frame url */

	browser_scrolling scrolling;	/** scrolling characteristics */
	bool border;	/** frame has a border */
	colour border_colour;	/** frame border colour */

	struct content_html_iframe *next;
};

/* entries in stylesheet_content */
#define STYLESHEET_BASE		0	/* base style sheet */
#define STYLESHEET_QUIRKS	1	/* quirks mode stylesheet */
#define STYLESHEET_ADBLOCK	2	/* adblocking stylesheet */
#define STYLESHEET_USER		3	/* user stylesheet */
#define STYLESHEET_START	4	/* start of document stylesheets */

nserror html_init(void);

void html_redraw_a_box(struct hlcache_handle *h, struct box *box);

void html_overflow_scroll_drag_end(struct scrollbar *scrollbar,
		browser_mouse_state mouse, int x, int y);

dom_document *html_get_document(struct hlcache_handle *h);
struct box *html_get_box_tree(struct hlcache_handle *h);
struct content_html_frames *html_get_frameset(struct hlcache_handle *h);
struct content_html_iframe *html_get_iframe(struct hlcache_handle *h);
struct nsurl *html_get_base_url(struct hlcache_handle *h);
const char *html_get_base_target(struct hlcache_handle *h);
void html_set_file_gadget_filename(struct hlcache_handle *hl,
	struct form_control *gadget, const char *fn);

/**
 * Retrieve stylesheets used by HTML document
 *
 * \param h Content to retrieve stylesheets from
 * \param n Pointer to location to receive number of sheets
 * \return Pointer to array of stylesheets
 */
struct html_stylesheet *html_get_stylesheets(struct hlcache_handle *h,
		unsigned int *n);

struct content_html_object *html_get_objects(struct hlcache_handle *h,
		unsigned int *n);
bool html_get_id_offset(struct hlcache_handle *h, lwc_string *frag_id,
		int *x, int *y);

#endif