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WebSurf/riscos/menus.c

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/*
* Copyright 2003 Phil Mellor <monkeyson@users.sourceforge.net>
* Copyright 2005 James Bursa <bursa@users.sourceforge.net>
* Copyright 2003 John M Bell <jmb202@ecs.soton.ac.uk>
* Copyright 2005 Richard Wilson <info@tinct.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
* Menu creation and handling (implementation).
*/
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include "oslib/os.h"
#include "oslib/osbyte.h"
#include "oslib/osgbpb.h"
#include "oslib/territory.h"
#include "oslib/wimp.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "utils/utils.h"
#include "utils/utf8.h"
#include "content/content.h"
#include "content/hlcache.h"
#include "content/urldb.h"
#include "desktop/cookie_manager.h"
#include "desktop/browser.h"
#include "desktop/gui.h"
#include "desktop/textinput.h"
#include "riscos/dialog.h"
#include "riscos/configure.h"
#include "riscos/cookies.h"
#include "riscos/gui.h"
#include "riscos/global_history.h"
#include "riscos/help.h"
#include "riscos/hotlist.h"
#include "riscos/menus.h"
#include "utils/nsoption.h"
#include "riscos/save.h"
#include "riscos/tinct.h"
#include "riscos/toolbar.h"
#include "riscos/treeview.h"
#include "riscos/url_suggest.h"
#include "riscos/wimp.h"
#include "riscos/wimp_event.h"
#include "riscos/ucstables.h"
struct menu_definition_entry {
menu_action action; /**< menu action */
wimp_menu_entry *menu_entry; /**< corresponding menu entry */
const char *entry_key; /**< Messages key for entry text */
struct menu_definition_entry *next; /**< next menu entry */
};
struct menu_definition {
wimp_menu *menu; /**< corresponding menu */
const char *title_key; /**< Messages key for title text */
int current_encoding; /**< Identifier for current text encoding of menu text (as per OS_Byte,71,127) */
struct menu_definition_entry *entries; /**< menu entries */
struct menu_definition *next; /**< next menu */
};
static void ro_gui_menu_closed(void);
static void ro_gui_menu_define_menu_add(struct menu_definition *definition,
const struct ns_menu *menu, int depth,
wimp_menu_entry *parent_entry,
int first, int last, const char *prefix, int prefix_length);
static struct menu_definition *ro_gui_menu_find_menu(wimp_menu *menu);
static struct menu_definition_entry *ro_gui_menu_find_entry(wimp_menu *menu,
menu_action action);
static menu_action ro_gui_menu_find_action(wimp_menu *menu,
wimp_menu_entry *menu_entry);
static int ro_gui_menu_get_checksum(void);
static bool ro_gui_menu_translate(struct menu_definition *menu);
/* default menu item flags */
#define DEFAULT_FLAGS (wimp_ICON_TEXT | wimp_ICON_FILLED | \
(wimp_COLOUR_BLACK << wimp_ICON_FG_COLOUR_SHIFT) | \
(wimp_COLOUR_WHITE << wimp_ICON_BG_COLOUR_SHIFT))
/** The currently defined menus to perform actions for */
static struct menu_definition *ro_gui_menu_definitions;
/** The current menu being worked with (may not be open) */
wimp_menu *current_menu;
/** Whether a menu is currently open */
bool current_menu_open = false;
/** Window that owns the current menu */
wimp_w current_menu_window;
/** Icon that owns the current menu (only valid for popup menus) */
static wimp_i current_menu_icon;
/** The available menus */
wimp_menu *image_quality_menu, *proxy_type_menu, *languages_menu;
/* the values given in PRM 3-157 for how to check menus/windows are
* incorrect so we use a hack of checking if the sub-menu has bit 0
* set which is undocumented but true of window handles on
* all target OS versions */
#define IS_MENU(menu) !((int)(menu) & 1)
/**
* Create menu structures.
*/
void ro_gui_menu_init(void)
{
/* image quality menu */
static const struct ns_menu images_definition = {
"Display", {
{ "ImgStyle0", NO_ACTION, 0 },
{ "ImgStyle1", NO_ACTION, 0 },
{ "ImgStyle2", NO_ACTION, 0 },
{ "ImgStyle3", NO_ACTION, 0 },
{NULL, 0, 0}
}
};
image_quality_menu = ro_gui_menu_define_menu(&images_definition);
/* proxy menu */
static const struct ns_menu proxy_type_definition = {
"ProxyType", {
{ "ProxyNone", NO_ACTION, 0 },
{ "ProxyNoAuth", NO_ACTION, 0 },
{ "ProxyBasic", NO_ACTION, 0 },
{ "ProxyNTLM", NO_ACTION, 0 },
{NULL, 0, 0}
}
};
proxy_type_menu = ro_gui_menu_define_menu(&proxy_type_definition);
/* special case menus */
ro_gui_url_suggest_init();
/* Note: This table *must* be kept in sync with the LangNames file */
static const struct ns_menu lang_definition = {
"Languages", {
{ "lang_af", NO_ACTION, 0 },
{ "lang_bm", NO_ACTION, 0 },
{ "lang_ca", NO_ACTION, 0 },
{ "lang_cs", NO_ACTION, 0 },
{ "lang_cy", NO_ACTION, 0 },
{ "lang_da", NO_ACTION, 0 },
{ "lang_de", NO_ACTION, 0 },
{ "lang_en", NO_ACTION, 0 },
{ "lang_es", NO_ACTION, 0 },
{ "lang_et", NO_ACTION, 0 },
{ "lang_eu", NO_ACTION, 0 },
{ "lang_ff", NO_ACTION, 0 },
{ "lang_fi", NO_ACTION, 0 },
{ "lang_fr", NO_ACTION, 0 },
{ "lang_ga", NO_ACTION, 0 },
{ "lang_gl", NO_ACTION, 0 },
{ "lang_ha", NO_ACTION, 0 },
{ "lang_hr", NO_ACTION, 0 },
{ "lang_hu", NO_ACTION, 0 },
{ "lang_id", NO_ACTION, 0 },
{ "lang_is", NO_ACTION, 0 },
{ "lang_it", NO_ACTION, 0 },
{ "lang_lt", NO_ACTION, 0 },
{ "lang_lv", NO_ACTION, 0 },
{ "lang_ms", NO_ACTION, 0 },
{ "lang_mt", NO_ACTION, 0 },
{ "lang_nl", NO_ACTION, 0 },
{ "lang_no", NO_ACTION, 0 },
{ "lang_pl", NO_ACTION, 0 },
{ "lang_pt", NO_ACTION, 0 },
{ "lang_rn", NO_ACTION, 0 },
{ "lang_ro", NO_ACTION, 0 },
{ "lang_rw", NO_ACTION, 0 },
{ "lang_sk", NO_ACTION, 0 },
{ "lang_sl", NO_ACTION, 0 },
{ "lang_so", NO_ACTION, 0 },
{ "lang_sq", NO_ACTION, 0 },
{ "lang_sr", NO_ACTION, 0 },
{ "lang_sv", NO_ACTION, 0 },
{ "lang_sw", NO_ACTION, 0 },
{ "lang_tr", NO_ACTION, 0 },
{ "lang_uz", NO_ACTION, 0 },
{ "lang_vi", NO_ACTION, 0 },
{ "lang_wo", NO_ACTION, 0 },
{ "lang_xs", NO_ACTION, 0 },
{ "lang_yo", NO_ACTION, 0 },
{ "lang_zu", NO_ACTION, 0 },
{ NULL, 0, 0 }
}
};
languages_menu = ro_gui_menu_define_menu(&lang_definition);
}
/**
* Display a menu.
*
* \param *menu Pointer to the menu to be displayed.
* \param x The x position.
* \param y The y position.
* \param w The window that the menu belongs to.
*/
void ro_gui_menu_create(wimp_menu *menu, int x, int y, wimp_w w)
{
os_error *error;
struct menu_definition *definition;
/* translate menu, if necessary (this returns quickly
* if there's nothing to be done) */
definition = ro_gui_menu_find_menu(menu);
if (definition) {
if (!ro_gui_menu_translate(definition)) {
warn_user("NoMemory", 0);
return;
}
}
/* store the menu characteristics */
current_menu = menu;
current_menu_window = w;
current_menu_icon = wimp_ICON_WINDOW;
/* create the menu */
current_menu_open = true;
error = xwimp_create_menu(menu, x - 64, y);
if (error) {
LOG(("xwimp_create_menu: 0x%x: %s",
error->errnum, error->errmess));
warn_user("MenuError", error->errmess);
ro_gui_menu_closed();
}
}
/**
* Display a pop-up menu next to the specified icon.
*
* \param menu menu to open
* \param w window handle
* \param i icon handle
*/
void ro_gui_popup_menu(wimp_menu *menu, wimp_w w, wimp_i i)
{
wimp_window_state state;
wimp_icon_state icon_state;
os_error *error;
state.w = w;
icon_state.w = w;
icon_state.i = i;
error = xwimp_get_window_state(&state);
if (error) {
LOG(("xwimp_get_window_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("MenuError", error->errmess);
return;
}
error = xwimp_get_icon_state(&icon_state);
if (error) {
LOG(("xwimp_get_icon_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("MenuError", error->errmess);
return;
}
ro_gui_menu_create(menu,
state.visible.x0 + icon_state.icon.extent.x1 + 64,
state.visible.y1 + icon_state.icon.extent.y1 -
state.yscroll, w);
current_menu_icon = i;
}
/**
* Forcibly close any menu or transient dialogue box that is currently open.
*/
void ro_gui_menu_destroy(void)
{
os_error *error;
if (current_menu == NULL)
return;
error = xwimp_create_menu(wimp_CLOSE_MENU, 0, 0);
if (error) {
LOG(("xwimp_create_menu: 0x%x: %s",
error->errnum, error->errmess));
warn_user("MenuError", error->errmess);
}
ro_gui_menu_closed();
}
/**
* Allow the current menu window to change, if the window is deleted and
* recreated while a menu is active on an Adjust-click.
*
* \param from The original window handle.
* \param to The new replacement window handle.
*/
void ro_gui_menu_window_changed(wimp_w from, wimp_w to)
{
if (from == current_menu_window)
current_menu_window = to;
}
/**
* Handle menu selection.
*/
void ro_gui_menu_selection(wimp_selection *selection)
{
int i; //, j;
wimp_menu_entry *menu_entry;
menu_action action;
wimp_pointer pointer;
os_error *error;
int previous_menu_icon = current_menu_icon;
/* if we are using gui_multitask then menu selection events
* may be delivered after the menu has been closed. As such,
* we simply ignore these events. */
if (!current_menu)
return;
assert(current_menu_window);
/* get the menu entry and associated action and definition */
menu_entry = &current_menu->entries[selection->items[0]];
for (i = 1; selection->items[i] != -1; i++)
menu_entry = &menu_entry->sub_menu->
entries[selection->items[i]];
action = ro_gui_menu_find_action(current_menu, menu_entry);
/* Deal with the menu action. If this manages to re-prepare the
* menu for re-opening, we test for and act on Adjust clicks.
*/
if (!ro_gui_wimp_event_menu_selection(current_menu_window,
current_menu_icon, current_menu, selection, action))
return;
/* re-open the menu for Adjust clicks */
error = xwimp_get_pointer_info(&pointer);
if (error) {
LOG(("xwimp_get_pointer_info: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
ro_gui_menu_closed();
return;
}
if (pointer.buttons != wimp_CLICK_ADJUST) {
ro_gui_menu_closed();
return;
}
ro_gui_menu_create(current_menu, 0, 0, current_menu_window);
current_menu_icon = previous_menu_icon;
}
/**
* Handle Message_MenuWarning.
*/
void ro_gui_menu_warning(wimp_message_menu_warning *warning)
{
int i;
menu_action action;
wimp_menu_entry *menu_entry;
os_error *error;
assert(current_menu);
assert(current_menu_window);
/* get the sub-menu of the warning */
if (warning->selection.items[0] == -1)
return;
menu_entry = &current_menu->entries[warning->selection.items[0]];
for (i = 1; warning->selection.items[i] != -1; i++)
menu_entry = &menu_entry->sub_menu->
entries[warning->selection.items[i]];
action = ro_gui_menu_find_action(current_menu, menu_entry);
/* Process the warning via Wimp_Event, then register the resulting
* submenu with the module.
*/
ro_gui_wimp_event_submenu_warning(current_menu_window,
current_menu_icon, current_menu, &(warning->selection),
action);
if (IS_MENU(menu_entry->sub_menu)) {
ro_gui_wimp_event_register_submenu((wimp_w) 0);
} else {
ro_gui_wimp_event_register_submenu((wimp_w)
menu_entry->sub_menu);
/* If this is a dialogue box, remove the close and back icons.
*/
ro_gui_wimp_update_window_furniture((wimp_w)
menu_entry->sub_menu,
wimp_WINDOW_CLOSE_ICON | wimp_WINDOW_BACK_ICON,
0);
}
/* open the sub-menu */
error = xwimp_create_sub_menu(menu_entry->sub_menu,
warning->pos.x, warning->pos.y);
if (error) {
LOG(("xwimp_create_sub_menu: 0x%x: %s",
error->errnum, error->errmess));
warn_user("MenuError", error->errmess);
}
}
/**
* Handle Message_MenusDeleted, removing our current record of an open menu
* if it matches the deleted menu handle.
*
* \param *deleted The message block.
*/
void ro_gui_menu_message_deleted(wimp_message_menus_deleted *deleted)
{
if (deleted != NULL && deleted->menu == current_menu)
ro_gui_menu_closed();
}
/**
* Clean up after a menu has been closed, or forcibly close an open menu.
*/
static void ro_gui_menu_closed(void)
{
if (current_menu != NULL)
ro_gui_wimp_event_menus_closed(current_menu_window,
current_menu_icon, current_menu);
current_menu = NULL;
current_menu_window = NULL;
current_menu_icon = 0;
current_menu_open = false;
}
/**
* Update the current menu by sending it a Menu Prepare event through wimp_event
* and then reopening it if the contents has changed.
*
* \param *menu The menu to refresh: if 0, the current menu will be
* refreshed regardless, otherwise it will be refreshed
* only if it matches the supplied handle.
*/
void ro_gui_menu_refresh(wimp_menu *menu)
{
int checksum = 0;
if (!current_menu_open)
return;
checksum = ro_gui_menu_get_checksum();
if (!ro_gui_wimp_event_prepare_menu(current_menu_window,
current_menu_icon, current_menu))
return;
/* \TODO -- Call the menu's event handler here. */
if (checksum != ro_gui_menu_get_checksum()) {
os_error *error;
error = xwimp_create_menu(current_menu, 0, 0);
if (error) {
LOG(("xwimp_create_menu: 0x%x: %s",
error->errnum, error->errmess));
warn_user("MenuError", error->errmess);
}
}
}
/**
* Creates a wimp_menu and adds it to the list to handle actions for.
*
* \param *menu The data to create the menu with
* \param *callbacks A callback table for the menu (NULL if to be
* handled in the 'old-fashined way' by menus.c).
* \return The menu created, or NULL on failure
*/
wimp_menu *ro_gui_menu_define_menu(const struct ns_menu *menu)
{
struct menu_definition *definition;
int entry;
definition = calloc(sizeof(struct menu_definition), 1);
if (!definition) {
die("No memory to create menu definition.");
return NULL; /* For the benefit of scan-build */
}
/* link in the menu to our list */
definition->next = ro_gui_menu_definitions;
ro_gui_menu_definitions = definition;
/* count number of menu entries */
for (entry = 0; menu->entries[entry].text; entry++)
/* do nothing */;
/* create our definitions */
ro_gui_menu_define_menu_add(definition, menu, 0, NULL,
0, entry, NULL, 0);
/* and translate menu into current encoding */
if (!ro_gui_menu_translate(definition))
die("No memory to translate menu.");
return definition->menu;
}
/**
* Create a wimp menu tree from ns_menu data.
* This function does *not* deal with the menu textual content - it simply
* creates and populates the appropriate structures. Textual content is
* generated by ro_gui_menu_translate_menu()
*
* \param definition Top level menu definition
* \param menu Menu declaration data
* \param depth Depth of menu we're currently building
* \param parent_entry Entry in parent menu, or NULL if root menu
* \param first First index in declaration data that is used by this menu
* \param last Last index in declaration data that is used by this menu
* \param prefix Prefix pf menu declaration string already seen
* \param prefix_length Length of prefix
*/
void ro_gui_menu_define_menu_add(struct menu_definition *definition,
const struct ns_menu *menu, int depth,
wimp_menu_entry *parent_entry, int first, int last,
const char *prefix, int prefix_length)
{
int entry;
int entries = 0;
int matches[last - first + 1];
const char *text, *menu_text;
wimp_menu *new_menu;
struct menu_definition_entry *definition_entry;
/* step 1: store the matches for depth and subset string */
for (entry = first; entry < last; entry++) {
const char *match;
int cur_depth = 0;
match = menu->entries[entry].text;
/* skip specials at start of string */
while (!isalnum(*match))
match++;
/* attempt prefix match */
if ((prefix) && (strncmp(match, prefix, prefix_length)))
continue;
/* Find depth of this entry */
while (*match)
if (*match++ == '.')
cur_depth++;
if (depth == cur_depth)
matches[entries++] = entry;
}
matches[entries] = last;
/* no entries, so exit */
if (entries == 0)
return;
/* step 2: build and link the menu. we must use realloc to stop
* our memory fragmenting so we can test for sub-menus easily */
new_menu = (wimp_menu *)malloc(wimp_SIZEOF_MENU(entries));
if (!new_menu)
die("No memory to create menu.");
if (parent_entry) {
/* Fix up sub menu pointer */
parent_entry->sub_menu = new_menu;
} else {
/* Root menu => fill in definition struct */
definition->title_key = menu->title;
definition->current_encoding = 0;
definition->menu = new_menu;
}
/* this is fixed up in ro_gui_menu_translate() */
new_menu->title_data.indirected_text.text = NULL;
/* fill in menu flags */
ro_gui_menu_init_structure(new_menu, entries);
/* and then create the entries */
for (entry = 0; entry < entries; entry++) {
/* add the entry */
int id = matches[entry];
text = menu->entries[id].text;
/* fill in menu flags from specials at start of string */
new_menu->entries[entry].menu_flags = 0;
while (!isalnum(*text)) {
if (*text == '_')
new_menu->entries[entry].menu_flags |=
wimp_MENU_SEPARATE;
text++;
}
/* get messages key for menu entry */
menu_text = strrchr(text, '.');
if (!menu_text)
/* no '.' => top-level entry */
menu_text = text;
else
menu_text++; /* and move past the '.' */
/* fill in submenu data */
if (menu->entries[id].sub_window)
new_menu->entries[entry].sub_menu =
(wimp_menu *) (*menu->entries[id].sub_window);
/* this is fixed up in ro_gui_menu_translate() */
new_menu->entries[entry].data.indirected_text.text = NULL;
/* create definition entry */
definition_entry =
malloc(sizeof(struct menu_definition_entry));
if (!definition_entry)
die("Unable to create menu definition entry");
definition_entry->action = menu->entries[id].action;
definition_entry->menu_entry = &new_menu->entries[entry];
definition_entry->entry_key = menu_text;
definition_entry->next = definition->entries;
definition->entries = definition_entry;
/* recurse */
if (new_menu->entries[entry].sub_menu == wimp_NO_SUB_MENU) {
ro_gui_menu_define_menu_add(definition, menu,
depth + 1, &new_menu->entries[entry],
matches[entry], matches[entry + 1],
text, strlen(text));
}
/* give menu warnings */
if (new_menu->entries[entry].sub_menu != wimp_NO_SUB_MENU)
new_menu->entries[entry].menu_flags |=
wimp_MENU_GIVE_WARNING;
}
new_menu->entries[0].menu_flags |= wimp_MENU_TITLE_INDIRECTED;
new_menu->entries[entries - 1].menu_flags |= wimp_MENU_LAST;
}
/**
* Initialise the basic state of a menu structure so all entries are
* indirected text with no flags, no submenu.
*/
void ro_gui_menu_init_structure(wimp_menu *menu, int entries)
{
int i;
menu->title_fg = wimp_COLOUR_BLACK;
menu->title_bg = wimp_COLOUR_LIGHT_GREY;
menu->work_fg = wimp_COLOUR_BLACK;
menu->work_bg = wimp_COLOUR_WHITE;
menu->width = 200;
menu->height = wimp_MENU_ITEM_HEIGHT;
menu->gap = wimp_MENU_ITEM_GAP;
for (i = 0; i < entries; i++) {
menu->entries[i].menu_flags = 0;
menu->entries[i].sub_menu = wimp_NO_SUB_MENU;
menu->entries[i].icon_flags =
DEFAULT_FLAGS | wimp_ICON_INDIRECTED;
menu->entries[i].data.indirected_text.validation =
(char *)-1;
}
menu->entries[0].menu_flags |= wimp_MENU_TITLE_INDIRECTED;
menu->entries[i - 1].menu_flags |= wimp_MENU_LAST;
}
/**
* Finds the menu_definition corresponding to a wimp_menu.
*
* \param menu the menu to find the definition for
* \return the associated definition, or NULL if one could not be found
*/
struct menu_definition *ro_gui_menu_find_menu(wimp_menu *menu)
{
struct menu_definition *definition;
if (!menu)
return NULL;
for (definition = ro_gui_menu_definitions; definition;
definition = definition->next)
if (definition->menu == menu)
return definition;
return NULL;
}
/**
* Finds the key associated with a menu entry translation.
*
* \param menu the menu to search
* \param translated the translated text
* \return the original message key, or NULL if one could not be found
*/
const char *ro_gui_menu_find_menu_entry_key(wimp_menu *menu,
const char *translated)
{
struct menu_definition_entry *entry;
struct menu_definition *definition = ro_gui_menu_find_menu(menu);
if (!definition)
return NULL;
for (entry = definition->entries; entry; entry = entry->next)
if (!strcmp(entry->menu_entry->data.indirected_text.text, translated))
return entry->entry_key;
return NULL;
}
/**
* Finds the menu_definition_entry corresponding to an action for a wimp_menu.
*
* \param menu the menu to search for an action within
* \param action the action to find
* \return the associated menu entry, or NULL if one could not be found
*/
struct menu_definition_entry *ro_gui_menu_find_entry(wimp_menu *menu,
menu_action action)
{
struct menu_definition_entry *entry;
struct menu_definition *definition = ro_gui_menu_find_menu(menu);
if (!definition)
return NULL;
for (entry = definition->entries; entry; entry = entry->next)
if (entry->action == action)
return entry;
return NULL;
}
/**
* Finds the action corresponding to a wimp_menu_entry for a wimp_menu.
*
* \param menu the menu to search for an action within
* \param menu_entry the menu_entry to find
* \return the associated action, or 0 if one could not be found
*/
menu_action ro_gui_menu_find_action(wimp_menu *menu, wimp_menu_entry *menu_entry)
{
struct menu_definition_entry *entry;
struct menu_definition *definition = ro_gui_menu_find_menu(menu);
if (!definition)
return NO_ACTION;
for (entry = definition->entries; entry; entry = entry->next) {
if (entry->menu_entry == menu_entry)
return entry->action;
}
return NO_ACTION;
}
/**
* Sets an action within a menu as having a specific ticked status.
*
* \param menu the menu containing the action
* \param action the action to tick/untick
* \param ticked whether to set the item as ticked
*/
void ro_gui_menu_set_entry_shaded(wimp_menu *menu, menu_action action,
bool shaded)
{
struct menu_definition_entry *entry;
struct menu_definition *definition = ro_gui_menu_find_menu(menu);
if (!definition)
return;
/* we can't use find_entry as multiple actions may appear in one menu */
for (entry = definition->entries; entry; entry = entry->next)
if (entry->action == action) {
if (shaded)
entry->menu_entry->icon_flags |= wimp_ICON_SHADED;
else
entry->menu_entry->icon_flags &= ~wimp_ICON_SHADED;
}
}
/**
* Sets an action within a menu as having a specific ticked status.
*
* \param menu the menu containing the action
* \param action the action to tick/untick
* \param ticked whether to set the item as ticked
*/
void ro_gui_menu_set_entry_ticked(wimp_menu *menu, menu_action action,
bool ticked)
{
struct menu_definition_entry *entry =
ro_gui_menu_find_entry(menu, action);
if (entry) {
if (ticked)
entry->menu_entry->menu_flags |= wimp_MENU_TICKED;
else
entry->menu_entry->menu_flags &= ~wimp_MENU_TICKED;
}
}
/**
* Calculates a simple checksum for the current menu state
*/
int ro_gui_menu_get_checksum(void)
{
wimp_selection menu_tree;
int i = 0, j, checksum = 0;
os_error *error;
wimp_menu *menu;
if (!current_menu_open)
return 0;
error = xwimp_get_menu_state((wimp_menu_state_flags)0,
&menu_tree, 0, 0);
if (error) {
LOG(("xwimp_get_menu_state: 0x%x: %s",
error->errnum, error->errmess));
warn_user("MenuError", error->errmess);
return 0;
}
menu = current_menu;
do {
j = 0;
do {
if (menu->entries[j].icon_flags & wimp_ICON_SHADED)
checksum ^= (1 << (i + j * 2));
if (menu->entries[j].menu_flags & wimp_MENU_TICKED)
checksum ^= (2 << (i + j * 2));
} while (!(menu->entries[j++].menu_flags & wimp_MENU_LAST));
j = menu_tree.items[i++];
if (j != -1) {
menu = menu->entries[j].sub_menu;
if ((!menu) || (menu == wimp_NO_SUB_MENU) || (!IS_MENU(menu)))
break;
}
} while (j != -1);
return checksum;
}
/**
* Translate a menu's textual content into the system local encoding
*
* \param menu The menu to translate
* \return false if out of memory, true otherwise
*/
bool ro_gui_menu_translate(struct menu_definition *menu)
{
os_error *error;
int alphabet;
struct menu_definition_entry *entry;
char *translated;
nserror err;
/* read current alphabet */
error = xosbyte1(osbyte_ALPHABET_NUMBER, 127, 0, &alphabet);
if (error) {
LOG(("failed reading alphabet: 0x%x: %s",
error->errnum, error->errmess));
/* assume Latin1 */
alphabet = territory_ALPHABET_LATIN1;
}
if (menu->current_encoding == alphabet)
/* menu text is already in the correct encoding */
return true;
/* translate root menu title text */
free(menu->menu->title_data.indirected_text.text);
err = utf8_to_local_encoding(messages_get(menu->title_key),
0, &translated);
if (err != NSERROR_OK) {
assert(err != NSERROR_BAD_ENCODING);
LOG(("utf8_to_enc failed"));
return false;
}
/* and fill in WIMP menu field */
menu->menu->title_data.indirected_text.text = translated;
/* now the menu entries */
for (entry = menu->entries; entry; entry = entry->next) {
wimp_menu *submenu = entry->menu_entry->sub_menu;
/* tranlate menu entry text */
free(entry->menu_entry->data.indirected_text.text);
err = utf8_to_local_encoding(messages_get(entry->entry_key),
0, &translated);
if (err != NSERROR_OK) {
assert(err != NSERROR_BAD_ENCODING);
LOG(("utf8_to_enc failed"));
return false;
}
/* fill in WIMP menu fields */
entry->menu_entry->data.indirected_text.text = translated;
entry->menu_entry->data.indirected_text.validation =
(char *) -1;
entry->menu_entry->data.indirected_text.size =
strlen(translated);
/* child menu title - this is the same as the text of
* the parent menu entry, so just copy the pointer */
if (submenu != wimp_NO_SUB_MENU && IS_MENU(submenu)) {
submenu->title_data.indirected_text.text =
translated;
}
}
/* finally, set the current encoding of the menu */
menu->current_encoding = alphabet;
return true;
}
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