menu.c

一个很有名的浏览器

/* Menu system */
/* $Id: menu.c,v 1.381.2.8 2005/05/01 21:32:11 jonas Exp $ */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdlib.h>
#include <string.h>

#include "elinks.h"

#include "bfu/dialog.h"
#include "bfu/leds.h"
#include "bfu/menu.h"
#include "config/options.h"
#include "config/urlhist.h"
#include "document/document.h"
#include "document/view.h"
#include "dialogs/exmode.h"
#include "dialogs/info.h"
#include "dialogs/menu.h"
#include "dialogs/options.h"
#include "intl/gettext/libintl.h"
#include "lowlevel/select.h"
#include "main.h"
#include "mime/dialogs.h"
#include "mime/mime.h"
#include "osdep/osdep.h"
#include "osdep/newwin.h"
#include "protocol/protocol.h"
#include "protocol/uri.h"
#include "sched/connection.h"
#include "sched/download.h"
#include "sched/event.h"
#include "sched/history.h"
#include "sched/location.h"
#include "sched/session.h"
#include "sched/task.h"
#include "terminal/tab.h"
#include "terminal/terminal.h"
#include "util/conv.h"
#include "util/file.h"
#include "util/memlist.h"
#include "util/memory.h"
#include "util/string.h"
#include "viewer/text/link.h"
#include "viewer/text/view.h"


/* Helper for url items in help menu. */
static void
menu_url_shortcut(struct terminal *term, void *url_, void *ses_)
{
	unsigned char *url = url_;
	struct session *ses = ses_;
	struct uri *uri = get_uri(url, 0);

	if (!uri) return;
	goto_uri(ses, uri);
	done_uri(uri);
}

static void
save_url(struct session *ses, unsigned char *url)
{
	struct document_view *doc_view;
	struct uri *uri;

	assert(ses && ses->tab && ses->tab->term && url);
	if_assert_failed return;

	if (!*url) return;

	uri = get_translated_uri(url, ses->tab->term->cwd);
	if (!uri) {
		print_error_dialog(ses, S_BAD_URL, NULL, PRI_CANCEL);
		return;
	}

	if (ses->download_uri) done_uri(ses->download_uri);
	ses->download_uri = uri;

	doc_view = current_frame(ses);
	assert(doc_view && doc_view->document && doc_view->document->uri);
	if_assert_failed return;

	set_session_referrer(ses, doc_view->document->uri);
	query_file(ses, ses->download_uri, ses, start_download, NULL, 1);
}

void
save_url_as(struct session *ses)
{
	input_dialog(ses->tab->term, NULL,
		     N_("Save URL"), N_("Enter URL"),
		     ses, &goto_url_history,
		     MAX_STR_LEN, "", 0, 0, NULL,
		     (void (*)(void *, unsigned char *)) save_url,
		     NULL);
}

void
really_exit_prog(struct session *ses)
{
	register_bottom_half((void (*)(void *)) destroy_terminal, ses->tab->term);
}

static inline void
dont_exit_prog(struct session *ses)
{
	ses->exit_query = 0;
}

void
query_exit(struct session *ses)
{
	ses->exit_query = 1;
	msg_box(ses->tab->term, NULL, 0,
		N_("Exit ELinks"), ALIGN_CENTER,
		(ses->tab->term->next == ses->tab->term->prev && are_there_downloads())
		? N_("Do you really want to exit ELinks "
		     "(and terminate all downloads)?")
		: N_("Do you really want to exit ELinks?"),
		ses, 2,
		N_("~Yes"), (void (*)(void *)) really_exit_prog, B_ENTER,
		N_("~No"), (void (*)(void *)) dont_exit_prog, B_ESC);
}

void
exit_prog(struct session *ses, int query)
{
	assert(ses);

	/* An exit query is in progress. */
	if (ses->exit_query)
		return;

	/* Force a query if the last terminal is exiting with downloads still in
	 * progress. */
	if (query || (list_is_singleton(terminals) && are_there_downloads())) {
		query_exit(ses);
		return;
	}

	really_exit_prog(ses);
}


static void
go_historywards(struct terminal *term, void *target_, void *ses_)
{
	struct location *target = target_;
	struct session *ses = ses_;

	go_history(ses, target);
}

static struct menu_item no_hist_menu[] = {
	INIT_MENU_ITEM(N_("No history"), NULL, ACT_MAIN_NONE, NULL, NULL, NO_SELECT),
	NULL_MENU_ITEM
};

/* unhist == 0 => history
 * unhist == 1 => unhistory */
static void
history_menu_common(struct terminal *term, struct session *ses, int unhist)
{
	struct menu_item *mi = NULL;

	if (have_location(ses)) {
		struct location *loc;

		for (loc = unhist ? cur_loc(ses)->next : cur_loc(ses)->prev;
		     loc != (struct location *) &ses->history.history;
		     loc = unhist ? loc->next : loc->prev) {
			unsigned char *url;

			if (!mi) {
				mi = new_menu(FREE_LIST | FREE_TEXT | NO_INTL);
				if (!mi) return;
			}

			url = get_uri_string(loc->vs.uri, URI_PUBLIC);
			if (url) {
				add_to_menu(&mi, url, NULL, ACT_MAIN_NONE,
					    go_historywards,
				    	    (void *) loc, 0);
			}
		}
	}

	if (!mi)
		do_menu(term, no_hist_menu, ses, 0);
	else
		do_menu(term, mi, ses, 0);
}

static void
history_menu(struct terminal *term, void *xxx, void *ses_)
{
	struct session *ses = ses_;

	history_menu_common(term, ses, 0);
}

static void
unhistory_menu(struct terminal *term, void *xxx, void *ses_)
{
	struct session *ses = ses_;

	history_menu_common(term, ses, 1);
}

void
tab_menu(struct session *ses, int x, int y, int place_above_cursor)
{
	struct menu_item *menu;
	int tabs;
#ifdef CONFIG_BOOKMARKS
	int anonymous = get_cmd_opt_bool("anonymous");
#endif

	assert(ses && ses->tab);
	if_assert_failed return;

	tabs = number_of_tabs(ses->tab->term);
	menu = new_menu(FREE_LIST);
	if (!menu) return;

	add_menu_action(&menu, N_("Go ~back"), ACT_MAIN_HISTORY_MOVE_BACK);
	add_menu_action(&menu, N_("Go for~ward"), ACT_MAIN_HISTORY_MOVE_FORWARD);

	if (have_location(ses)) {
		add_menu_separator(&menu);

#ifdef CONFIG_BOOKMARKS
		if (!anonymous) {
			add_menu_action(&menu, N_("Bookm~ark document"), ACT_MAIN_ADD_BOOKMARK);
		}
#endif

		add_menu_action(&menu, N_("Toggle ~html/plain"), ACT_MAIN_TOGGLE_HTML_PLAIN);
		add_menu_action(&menu, N_("~Reload"), ACT_MAIN_RELOAD);

		if (ses->doc_view && document_has_frames(ses->doc_view->document)) {
			add_menu_action(&menu, N_("Frame at ~full-screen"), ACT_MAIN_FRAME_MAXIMIZE);
			add_uri_command_to_menu(&menu, PASS_URI_FRAME);
		}
	}

	/* Keep tab related operations below this separator */
	add_menu_separator(&menu);

	if (tabs > 1) {
		add_menu_action(&menu, N_("Nex~t tab"), ACT_MAIN_TAB_NEXT);
		add_menu_action(&menu, N_("Pre~v tab"), ACT_MAIN_TAB_PREV);
	}

	add_menu_action(&menu, N_("~Close tab"), ACT_MAIN_TAB_CLOSE);

	if (tabs > 1) {
		add_menu_action(&menu, N_("C~lose all tabs but the current"),
				ACT_MAIN_TAB_CLOSE_ALL_BUT_CURRENT);
#ifdef CONFIG_BOOKMARKS
		if (!anonymous) {
			add_menu_action(&menu, N_("B~ookmark all tabs"),
					ACT_MAIN_ADD_BOOKMARK_TABS);
		}
#endif
	}

	if (have_location(ses))
		add_uri_command_to_menu(&menu, PASS_URI_TAB);

	/* Adjust the menu position taking the menu frame into account */
	if (place_above_cursor) {
		int i = 0;

		while (menu[i].text) i++;

		y = int_max(y - i - 1, 0);
	}

	set_window_ptr(ses->tab, x, y);

	do_menu(ses->tab->term, menu, ses, 1);
}

static void
do_submenu(struct terminal *term, void *menu_, void *ses_)
{
	struct menu_item *menu = menu_;

	do_menu(term, menu, ses_, 1);
}


static struct menu_item file_menu11[] = {
	INIT_MENU_ACTION(N_("Open new ~tab"), ACT_MAIN_OPEN_NEW_TAB),
	INIT_MENU_ACTION(N_("Open new tab in backgroun~d"), ACT_MAIN_OPEN_NEW_TAB_IN_BACKGROUND),
	INIT_MENU_ACTION(N_("~Go to URL"), ACT_MAIN_GOTO_URL),
	INIT_MENU_ACTION(N_("Go ~back"), ACT_MAIN_HISTORY_MOVE_BACK),
	INIT_MENU_ACTION(N_("Go ~forward"), ACT_MAIN_HISTORY_MOVE_FORWARD),
	INIT_MENU_ITEM(N_("~History"), NULL, ACT_MAIN_NONE, history_menu, NULL, SUBMENU),
	INIT_MENU_ITEM(N_("~Unhistory"), NULL, ACT_MAIN_NONE, unhistory_menu, NULL, SUBMENU),
};

static struct menu_item file_menu21[] = {
	BAR_MENU_ITEM,
	INIT_MENU_ACTION(N_("~Save as"), ACT_MAIN_SAVE_AS),
	INIT_MENU_ACTION(N_("Save UR~L as"), ACT_MAIN_SAVE_URL_AS),
	INIT_MENU_ACTION(N_("Sa~ve formatted document"), ACT_MAIN_SAVE_FORMATTED),
#ifdef CONFIG_BOOKMARKS
	INIT_MENU_ACTION(N_("Bookm~ark document"), ACT_MAIN_ADD_BOOKMARK),
#endif
};

static struct menu_item file_menu22[] = {
	BAR_MENU_ITEM,
	INIT_MENU_ACTION(N_("~Kill background connections"), ACT_MAIN_KILL_BACKGROUNDED_CONNECTIONS),
	INIT_MENU_ACTION(N_("Flush all ~caches"), ACT_MAIN_CACHE_MINIMIZE),
	INIT_MENU_ACTION(N_("Resource ~info"), ACT_MAIN_RESOURCE_INFO),
	BAR_MENU_ITEM,
};

static struct menu_item file_menu3[] = {
	BAR_MENU_ITEM,
	INIT_MENU_ACTION(N_("E~xit"), ACT_MAIN_QUIT),
	NULL_MENU_ITEM,
};

static void
do_file_menu(struct terminal *term, void *xxx, void *ses_)
{
	struct menu_item *file_menu, *e, *f;
	int anonymous = get_cmd_opt_bool("anonymous");
	int x, o;

	file_menu = mem_alloc(sizeof(file_menu11) + sizeof(file_menu21)
			      + sizeof(file_menu22) + sizeof(file_menu3)
			      + 3 * sizeof(struct menu_item));
	if (!file_menu) return;

	e = file_menu;

	if (!anonymous
	    && !get_cmd_opt_bool("no-connect")
	    && !get_cmd_opt_bool("no-home"))
		o = can_open_in_new(term);
	else
		o = 0;

	if (o) {
		SET_MENU_ITEM(e, N_("Open ~new window"), NULL, ACT_MAIN_OPEN_NEW_WINDOW,
			      open_in_new_window, send_open_new_window,
			      (o - 1) ? SUBMENU : 0, 0, HKS_SHOW);
		e++;
	}

	memcpy(e, file_menu11, sizeof(file_menu11));
	e += sizeof(file_menu11) / sizeof(struct menu_item);

	if (!anonymous) {
		memcpy(e, file_menu21, sizeof(file_menu21));
		e += sizeof(file_menu21) / sizeof(struct menu_item);
	}

	memcpy(e, file_menu22, sizeof(file_menu22));
	e += sizeof(file_menu22) / sizeof(struct menu_item);

	x = 1;
	if (!anonymous && can_open_os_shell(term->environment)) {
		SET_MENU_ITEM(e, N_("~OS shell"), NULL, ACT_MAIN_OPEN_OS_SHELL,
			      NULL, NULL, 0, 0, HKS_SHOW);
		e++;
		x = 0;
	}

	if (can_resize_window(term->environment)) {
		SET_MENU_ITEM(e, N_("Resize t~erminal"), NULL, ACT_MAIN_TERMINAL_RESIZE,
			      NULL, NULL, 0, 0, HKS_SHOW);
		e++;
		x = 0;
	}

	memcpy(e, file_menu3 + x, sizeof(file_menu3) - x * sizeof(struct menu_item));
	e += sizeof(file_menu3) / sizeof(struct menu_item);

	for (f = file_menu; f < e; f++)
		f->flags |= FREE_LIST;

	do_menu(term, file_menu, ses_, 1);
}

static struct menu_item view_menu[] = {
	INIT_MENU_ACTION(N_("~Search"), ACT_MAIN_SEARCH),
	INIT_MENU_ACTION(N_("Search ~backward"), ACT_MAIN_SEARCH_BACK),
	INIT_MENU_ACTION(N_("Find ~next"), ACT_MAIN_FIND_NEXT),
	INIT_MENU_ACTION(N_("Find ~previous"), ACT_MAIN_FIND_NEXT_BACK),
	INIT_MENU_ACTION(N_("T~ypeahead search"), ACT_MAIN_SEARCH_TYPEAHEAD),
	BAR_MENU_ITEM,
	INIT_MENU_ACTION(N_("Toggle ~html/plain"), ACT_MAIN_TOGGLE_HTML_PLAIN),
	INIT_MENU_ACTION(N_("Toggle i~mages"), ACT_MAIN_TOGGLE_DISPLAY_IMAGES),
	INIT_MENU_ACTION(N_("Toggle ~link numbering"), ACT_MAIN_TOGGLE_NUMBERED_LINKS),
	INIT_MENU_ACTION(N_("Toggle ~document colors"), ACT_MAIN_TOGGLE_DOCUMENT_COLORS),
	INIT_MENU_ACTION(N_("~Wrap text on/off"), ACT_MAIN_TOGGLE_WRAP_TEXT),
	BAR_MENU_ITEM,
	INIT_MENU_ACTION(N_("Document ~info"), ACT_MAIN_DOCUMENT_INFO),
	INIT_MENU_ACTION(N_("H~eader info"), ACT_MAIN_HEADER_INFO),
	INIT_MENU_ACTION(N_("Rel~oad document"), ACT_MAIN_RELOAD),
	INIT_MENU_ACTION(N_("~Rerender document"), ACT_MAIN_RERENDER),
	INIT_MENU_ACTION(N_("Frame at ~full-screen"), ACT_MAIN_FRAME_MAXIMIZE),
	BAR_MENU_ITEM,
	INIT_MENU_ACTION(N_("Nex~t tab"), ACT_MAIN_TAB_NEXT),
	INIT_MENU_ACTION(N_("Pre~v tab"), ACT_MAIN_TAB_PREV),
	INIT_MENU_ACTION(N_("~Close tab"), ACT_MAIN_TAB_CLOSE),
	NULL_MENU_ITEM
};


static struct menu_item help_menu[] = {
	INIT_MENU_ITEM(N_("~ELinks homepage"), NULL, ACT_MAIN_NONE, menu_url_shortcut, ELINKS_HOMEPAGE, 0),
	INIT_MENU_ITEM(N_("~Documentation"), NULL, ACT_MAIN_NONE, menu_url_shortcut, ELINKS_DOC_URL, 0),
	INIT_MENU_ITEM(N_("~Keys"), NULL, ACT_MAIN_NONE, menu_keys, NULL, 0),
#ifdef CONFIG_LEDS
	INIT_MENU_ITEM(N_("LED ~indicators"), NULL, ACT_MAIN_NONE, menu_leds_info, NULL, 0),
#endif
	BAR_MENU_ITEM,
	INIT_MENU_ITEM(N_("~Bugs information"), NULL, ACT_MAIN_NONE, menu_url_shortcut, ELINKS_BUGS_URL, 0),
#ifdef CONFIG_DEBUG
	INIT_MENU_ITEM(N_("ELinks C~vsWeb"), NULL, ACT_MAIN_NONE, menu_url_shortcut, ELINKS_CVSWEB_URL, 0),
	INIT_MENU_ITEM(N_("ELinks Cvs ~History"), NULL, ACT_MAIN_NONE, menu_url_shortcut, ELINKS_CVSHIST_URL, 0),
	INIT_MENU_ITEM(N_("ELinks ~LXR"), NULL, ACT_MAIN_NONE, menu_url_shortcut, ELINKS_LXR_URL, 0),
#endif
	BAR_MENU_ITEM,
	INIT_MENU_ITEM(N_("~Copying"), NULL, ACT_MAIN_NONE, menu_copying, NULL, 0),
	INIT_MENU_ITEM(N_("~About"), NULL, ACT_MAIN_NONE, menu_about, NULL, 0),
	NULL_MENU_ITEM
};


static struct menu_item ext_menu[] = {
	INIT_MENU_ITEM(N_("~Add"), NULL, ACT_MAIN_NONE, menu_add_ext, NULL, 0),
	INIT_MENU_ITEM(N_("~Modify"), NULL, ACT_MAIN_NONE, menu_list_ext, menu_add_ext, SUBMENU),
	INIT_MENU_ITEM(N_("~Delete"), NULL, ACT_MAIN_NONE, menu_list_ext, menu_del_ext, SUBMENU),
	NULL_MENU_ITEM
};

static struct menu_item setup_menu[] = {
#ifdef ENABLE_NLS
	INIT_MENU_ITEM(N_("~Language"), NULL, ACT_MAIN_NONE, menu_language_list, NULL, SUBMENU),
#endif
	INIT_MENU_ITEM(N_("C~haracter set"), NULL, ACT_MAIN_NONE, charset_list, NULL, SUBMENU),
	INIT_MENU_ACTION(N_("~Terminal options"), ACT_MAIN_SHOW_TERM_OPTIONS),
	INIT_MENU_ITEM(N_("File ~extensions"), NULL, ACT_MAIN_NONE, do_submenu, ext_menu, SUBMENU),
	BAR_MENU_ITEM,
	INIT_MENU_ACTION(N_("~Options manager"), ACT_MAIN_OPTIONS_MANAGER),
	INIT_MENU_ACTION(N_("~Keybinding manager"), ACT_MAIN_KEYBINDING_MANAGER),
	INIT_MENU_ACTION(N_("~Save options"), ACT_MAIN_SAVE_OPTIONS),
	NULL_MENU_ITEM
};

static struct menu_item setup_menu_anon[] = {
	INIT_MENU_ITEM(N_("~Language"), NULL, ACT_MAIN_NONE, menu_language_list, NULL, SUBMENU),
	INIT_MENU_ITEM(N_("C~haracter set"), NULL, ACT_MAIN_NONE, charset_list, NULL, SUBMENU),
	INIT_MENU_ACTION(N_("~Terminal options"), ACT_MAIN_SHOW_TERM_OPTIONS),
	NULL_MENU_ITEM
};

static struct menu_item tools_menu[] = {
#ifdef CONFIG_GLOBHIST
	INIT_MENU_ACTION(N_("Global ~history"), ACT_MAIN_HISTORY_MANAGER),
#endif
#ifdef CONFIG_BOOKMARKS
	INIT_MENU_ACTION(N_("~Bookmarks"), ACT_MAIN_BOOKMARK_MANAGER),
#endif
	INIT_MENU_ACTION(N_("~Cache"), ACT_MAIN_CACHE_MANAGER),
	INIT_MENU_ACTION(N_("~Downloads"), ACT_MAIN_DOWNLOAD_MANAGER),
#ifdef CONFIG_COOKIES
	INIT_MENU_ACTION(N_("Coo~kies"), ACT_MAIN_COOKIE_MANAGER),
#endif
#ifdef CONFIG_FORMHIST
	INIT_MENU_ACTION(N_("~Form history"), ACT_MAIN_FORMHIST_MANAGER),
#endif
	INIT_MENU_ACTION(N_("~Authentication"), ACT_MAIN_AUTH_MANAGER),
	NULL_MENU_ITEM
};

static void
do_setup_menu(struct terminal *term, void *xxx, void *ses_)
{
	struct session *ses = ses_;

	if (!get_cmd_opt_bool("anonymous"))
		do_menu(term, setup_menu, ses, 1);
	else
		do_menu(term, setup_menu_anon, ses, 1);
}

static struct menu_item main_menu[] = {
	INIT_MENU_ITEM(N_("~File"), NULL, ACT_MAIN_NONE, do_file_menu, NULL, FREE_LIST | SUBMENU),
	INIT_MENU_ITEM(N_("~View"), NULL, ACT_MAIN_NONE, do_submenu, view_menu, FREE_LIST | SUBMENU),
	INIT_MENU_ITEM(N_("~Link"), NULL, ACT_MAIN_NONE, link_menu, NULL, FREE_LIST | SUBMENU),
	INIT_MENU_ITEM(N_("~Tools"), NULL, ACT_MAIN_NONE, do_submenu, tools_menu, FREE_LIST | SUBMENU),
	INIT_MENU_ITEM(N_("~Setup"), NULL, ACT_MAIN_NONE, do_setup_menu, NULL, FREE_LIST | SUBMENU),
	INIT_MENU_ITEM(N_("~Help"), NULL, ACT_MAIN_NONE, do_submenu, help_menu, FREE_LIST | SUBMENU),
	NULL_MENU_ITEM
};

void
activate_bfu_technology(struct session *ses, int item)
{
	do_mainmenu(ses->tab->term, main_menu, ses, item);
}


void
dialog_goto_url(struct session *ses, unsigned char *url)
{
	input_dialog(ses->tab->term, NULL,
		     N_("Go to URL"), N_("Enter URL"),
		     ses, &goto_url_history,
		     MAX_STR_LEN, url, 0, 0, NULL,
		     (void (*)(void *, unsigned char *)) goto_url_with_hook,
		     NULL);
}


static INIT_INPUT_HISTORY(file_history);

void
query_file(struct session *ses, struct uri *uri, void *data,
	   void (*std)(void *, unsigned char *),
	   void (*cancel)(void *), int interactive)
{