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netsurf/desktop/browser.h

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/*
* Copyright 2003 Phil Mellor <monkeyson@users.sourceforge.net>
* Copyright 2006 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
* Browser window creation and manipulation (interface).
*/
#ifndef _NETSURF_DESKTOP_BROWSER_H_
#define _NETSURF_DESKTOP_BROWSER_H_
#include <inttypes.h>
#include <stdbool.h>
#include <time.h>
#include "render/html.h"
struct box;
struct content;
struct form;
struct form_control;
struct form_successful_control;
struct gui_window;
struct history;
struct selection;
struct browser_window;
struct url_data;
struct bitmap;
typedef bool (*browser_caret_callback)(struct browser_window *bw,
uint32_t key, void *p);
typedef bool (*browser_paste_callback)(struct browser_window *bw,
const char *utf8, unsigned utf8_len, bool last, void *p);
typedef void (*browser_move_callback)(struct browser_window *bw,
void *p);
/** Browser window data. */
struct browser_window {
/** Page currently displayed, or 0. Must have status READY or DONE. */
struct content *current_content;
/** Page being loaded, or 0. */
struct content *loading_content;
/** Window history structure. */
struct history *history;
/** Selection state */
struct selection *sel;
/** Handler for keyboard input, or 0. */
browser_caret_callback caret_callback;
/** Handler for pasting text, or 0. */
browser_paste_callback paste_callback;
/** Handler for repositioning caret, or 0. */
browser_move_callback move_callback;
/** User parameter for caret_callback and paste_callback */
void *caret_p;
/** Platform specific window data. */
struct gui_window *window;
/** Busy indicator is active. */
bool throbbing;
/** Add loading_content to the window history when it loads. */
bool history_add;
/** Fragment identifier for current_content. */
char *frag_id;
/** Current drag status. */
enum {
DRAGGING_NONE,
DRAGGING_VSCROLL,
DRAGGING_HSCROLL,
DRAGGING_SELECTION,
DRAGGING_PAGE_SCROLL,
DRAGGING_2DSCROLL,
DRAGGING_FRAME
} drag_type;
/** Box currently being scrolled, or 0. */
struct box *scrolling_box;
/** Mouse position at start of current scroll drag. */
int drag_start_x;
int drag_start_y;
/** Scroll offsets at start of current scroll draw. */
int drag_start_scroll_x;
int drag_start_scroll_y;
/** Well dimensions for current scroll drag. */
int drag_well_width;
int drag_well_height;
/** Frame resize directions for current frame resize drag. */
unsigned int drag_resize_left : 1;
unsigned int drag_resize_right : 1;
unsigned int drag_resize_up : 1;
unsigned int drag_resize_down : 1;
/** Referrer for current fetch, or 0. */
char *referer;
/** Current fetch is download */
bool download;
/** Refresh interval (-1 if undefined) */
int refresh_interval;
/** Window has been resized, and content needs reformatting. */
bool reformat_pending;
/** Window dimensions */
int x0;
int y0;
int x1;
int y1;
/** scale of window contents */
float scale;
/** Window characteristics */
enum {
BROWSER_WINDOW_NORMAL,
BROWSER_WINDOW_IFRAME,
BROWSER_WINDOW_FRAME,
BROWSER_WINDOW_FRAMESET,
} browser_window_type;
/** frameset characteristics */
int rows;
int cols;
/** frame dimensions */
struct frame_dimension frame_width;
struct frame_dimension frame_height;
int margin_width;
int margin_height;
/** frame name for targetting */
char *name;
/** frame characteristics */
bool no_resize;
frame_scrolling scrolling;
bool border;
colour border_colour;
/** iframe parent box */
struct box *box;
/** [cols * rows] children */
struct browser_window *children;
struct browser_window *parent;
/** [iframe_count] iframes */
int iframe_count;
struct browser_window *iframes;
/** Last time a link was followed in this window */
unsigned int last_action;
};
/* Mouse state. 1 is primary mouse button (e.g. Select on RISC OS).
* 2 is secondary mouse button (e.g. Adjust on RISC OS). */
typedef enum {
BROWSER_MOUSE_PRESS_1 = 1, /* button 1 pressed */
BROWSER_MOUSE_PRESS_2 = 2, /* button 2 pressed */
/* note: click meaning is different for
* different front ends. On RISC OS, it
* is standard to act on press, so a
* click is fired at the same time as a
* mouse button is pressed. With GTK, it
* is standard to act on release, so a
* click is fired when the mouse button
* is released, if the operation wasn't
* a drag. */
BROWSER_MOUSE_CLICK_1 = 4, /* button 1 clicked. */
BROWSER_MOUSE_CLICK_2 = 8, /* button 2 clicked. */
BROWSER_MOUSE_DOUBLE_CLICK = 16, /* button 1 double clicked */
BROWSER_MOUSE_DRAG_1 = 32, /* start of button 1 drag operation */
BROWSER_MOUSE_DRAG_2 = 64, /* start of button 2 drag operation */
BROWSER_MOUSE_DRAG_ON = 128, /* a drag operation was started and
* a mouse button is still pressed */
BROWSER_MOUSE_HOLDING_1 = 256, /* while button 1 drag is in progress */
BROWSER_MOUSE_HOLDING_2 = 512, /* while button 2 drag is in progress */
BROWSER_MOUSE_MOD_1 = 1024, /* primary modifier key pressed
* (eg. Shift) */
BROWSER_MOUSE_MOD_2 = 2048, /* secondary modifier key pressed
* (eg. Ctrl) */
BROWSER_MOUSE_MOD_3 = 4096 /* secondary modifier key pressed
* (eg. Alt) */
} browser_mouse_state;
extern struct browser_window *current_redraw_browser;
extern bool browser_reformat_pending;
struct browser_window * browser_window_create(const char *url,
struct browser_window *clone, const char *referrer,
bool history_add, bool new_tab);
void browser_window_initialise_common(struct browser_window *bw,
struct browser_window *clone);
void browser_window_go(struct browser_window *bw, const char *url,
const char *referrer, bool history_add);
void browser_window_go_unverifiable(struct browser_window *bw,
const char *url, const char *referrer, bool history_add,
struct content *parent);
void browser_window_download(struct browser_window *bw,
const char *url, const char *referrer);
void browser_window_update(struct browser_window *bw, bool scroll_to_top);
void browser_window_stop(struct browser_window *bw);
void browser_window_reload(struct browser_window *bw, bool all);
void browser_window_destroy(struct browser_window *bw);
struct browser_window * browser_window_owner(struct browser_window *bw);
void browser_window_reformat(struct browser_window *bw, int width, int height);
void browser_window_set_scale(struct browser_window *bw, float scale, bool all);
void browser_window_refresh_url_bar(struct browser_window *bw, const char *url,
const char *frag);
void browser_window_mouse_click(struct browser_window *bw,
browser_mouse_state mouse, int x, int y);
void browser_window_mouse_track(struct browser_window *bw,
browser_mouse_state mouse, int x, int y);
void browser_window_mouse_drag_end(struct browser_window *bw,
browser_mouse_state mouse, int x, int y);
bool browser_window_key_press(struct browser_window *bw, uint32_t key);
bool browser_window_paste_text(struct browser_window *bw, const char *utf8,
unsigned utf8_len, bool last);
void browser_window_form_select(struct browser_window *bw,
struct form_control *control, int item);
void browser_redraw_box(struct content *c, struct box *box);
void browser_form_submit(struct browser_window *bw, struct browser_window *target,
struct form *form, struct form_control *submit_button);
void browser_window_redraw_rect(struct browser_window *bw, int x, int y,
int width, int height);
bool browser_window_back_available(struct browser_window *bw);
bool browser_window_forward_available(struct browser_window *bw);
bool browser_window_reload_available(struct browser_window *bw);
bool browser_window_stop_available(struct browser_window *bw);
/* In platform specific hotlist.c. */
void hotlist_visited(struct content *content);
/* In platform specific global_history.c. */
void global_history_add(const char *url);
void global_history_add_recent(const char *url);
char **global_history_get_recent(int *count);
/* In platform specific thumbnail.c. */
bool thumbnail_create(struct content *content, struct bitmap *bitmap,
const char *url);
/* In platform specific schedule.c. */
void schedule(int t, void (*callback)(void *p), void *p);
void schedule_remove(void (*callback)(void *p), void *p);
bool schedule_run(void);
/* In platform specific theme_install.c. */
#ifdef WITH_THEME_INSTALL
void theme_install_start(struct content *c);
#endif
#endif
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