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path: root/embed/mozilla/mozilla-notifiers.cpp
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/*
 *  Copyright (C) 2000 Nate Case 
 *
 *  This program 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; either version 2, OR (AT YOUR OPTION)
 *  any later version.
 *
 *  This program 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, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "ephy-embed-shell.h"
#include "ephy-embed-single.h"
#include "mozilla-notifiers.h"
#include "eel-gconf-extensions.h"
#include "MozRegisterComponents.h"
#include "ephy-prefs.h"
#include "ephy-embed-prefs.h"
#include "ephy-langs.h"
#include "ephy-debug.h"

#include <stdio.h>
#include <string.h>
#include <locale.h>
#include <libgnome/gnome-i18n.h>
#include <stdlib.h>
#include "nsCOMPtr.h"
#include "nsIPrefService.h"
#include "nsIServiceManager.h"

static void
mozilla_cache_size_notifier (GConfClient *client,
                     guint cnxn_id,
                     GConfEntry *entry,
                     char *pref);
static void
mozilla_own_colors_notifier(GConfClient *client,
                guint cnxn_id,
                GConfEntry *entry,
                EphyEmbedSingle *single);
static void
mozilla_own_fonts_notifier(GConfClient *client,
               guint cnxn_id,
               GConfEntry *entry,
               EphyEmbedSingle *single);

static void
generic_mozilla_string_notifier(GConfClient *client,
                guint cnxn_id,
                GConfEntry *entry,
                const char *pref_name);
static void
generic_mozilla_int_notifier(GConfClient *client,
                 guint cnxn_id,
                 GConfEntry *entry,
                 const char *pref_name);
static void
generic_mozilla_bool_notifier(GConfClient *client,
                  guint cnxn_id,
                  GConfEntry *entry,
                  const char *pref_name);
static void
mozilla_allow_popups_notifier(GConfClient *client,
                  guint cnxn_id,
                  GConfEntry *entry,
                  EphyEmbedSingle *single);

static void
mozilla_language_notifier(GConfClient *client,
              guint cnxn_id,
              GConfEntry *entry,
              EphyEmbedSingle *single);

static void
mozilla_proxy_mode_notifier (GConfClient *client,
                 guint cnxn_id,
                 GConfEntry *entry,
                 EphyEmbedSingle *single);
static void
mozilla_proxy_autoconfig_notifier (GConfClient *client,
                       guint cnxn_id,
                       GConfEntry *entry,
                       EphyEmbedSingle *single);
static void
mozilla_proxy_mode_notifier (GConfClient *client,
                     guint cnxn_id,
                     GConfEntry *entry,
                     EphyEmbedSingle *single);
static void
mozilla_cookies_accept_notifier (GConfClient *client,
                         guint cnxn_id,
                         GConfEntry *entry,
                         char *pref);

/* Keeps the list of the notifiers we installed for mozilla prefs */
/* to be able to remove them when exiting */
GList *mozilla_notifiers = NULL;
GList *font_infos = NULL;

enum
{
    BOOL_PREF,
    INT_PREF,
    STRING_PREF
};

static const struct 
{
    char *gconf_key;
    guint pref_type;
    const char *mozilla_key;
}
conversion_table [] =
{
    { CONF_SECURITY_JAVA_ENABLED, BOOL_PREF, "security.enable_java"},
    { CONF_SECURITY_JAVASCRIPT_ENABLED, BOOL_PREF, "javascript.enabled"},
    { CONF_NETWORK_PROXY_AUTO_URL, STRING_PREF, "network.proxy.autoconfig_url"},
    { CONF_NETWORK_HTTP_PROXY, STRING_PREF, "network.proxy.http"},
    { CONF_NETWORK_FTP_PROXY, STRING_PREF, "network.proxy.ftp"},
    { CONF_NETWORK_SSL_PROXY, STRING_PREF, "network.proxy.ssl"},
    { CONF_NETWORK_HTTP_PROXY_PORT, INT_PREF, "network.proxy.http_port"},
    { CONF_NETWORK_FTP_PROXY_PORT, INT_PREF, "network.proxy.ftp_port"},
    { CONF_NETWORK_SSL_PROXY_PORT, INT_PREF, "network.proxy.ssl_port"},
    { CONF_LANGUAGE_DEFAULT_ENCODING, STRING_PREF, "intl.charset.default" },
    { CONF_LANGUAGE_AUTODETECT_ENCODING, STRING_PREF, "intl.charset.detector" },
    { CONF_RENDERING_DEFAULT_FONT, STRING_PREF, "font.default" },

    { NULL, 0, NULL }
};
 
static const struct 
{
    const char *gconf_key;
    GConfClientNotifyFunc func;
}
custom_notifiers [] =
{
    { CONF_RENDERING_USE_OWN_COLORS, 
      (GConfClientNotifyFunc) mozilla_own_colors_notifier },
    { CONF_RENDERING_USE_OWN_FONTS, 
      (GConfClientNotifyFunc) mozilla_own_fonts_notifier },
    { CONF_SECURITY_ALLOW_POPUPS, 
      (GConfClientNotifyFunc) mozilla_allow_popups_notifier },
    { CONF_RENDERING_LANGUAGE, 
      (GConfClientNotifyFunc) mozilla_language_notifier },
    { CONF_NETWORK_PROXY_MODE,
      (GConfClientNotifyFunc) mozilla_proxy_mode_notifier },
    { CONF_NETWORK_PROXY_AUTO_URL,
      (GConfClientNotifyFunc) mozilla_proxy_autoconfig_notifier },
    { CONF_NETWORK_CACHE_SIZE,
          (GConfClientNotifyFunc) mozilla_cache_size_notifier },
    { CONF_SECURITY_COOKIES_ACCEPT,
      (GConfClientNotifyFunc) mozilla_cookies_accept_notifier },

    { NULL, NULL }
};

static gboolean
mozilla_prefs_set_string(const char *preference_name, const char *new_value)
{
        g_return_val_if_fail (preference_name != NULL, FALSE);
        g_return_val_if_fail (new_value != NULL, FALSE);
        nsCOMPtr<nsIPrefService> prefService = 
                                do_GetService (NS_PREFSERVICE_CONTRACTID);
        nsCOMPtr<nsIPrefBranch> pref;
        prefService->GetBranch ("", getter_AddRefs(pref));

        if (pref)
        {
        nsresult rv = pref->SetCharPref (preference_name, new_value);            
                return NS_SUCCEEDED (rv) ? TRUE : FALSE;
        }

        return FALSE;
}

static gboolean
mozilla_prefs_set_boolean (const char *preference_name,
                           gboolean new_boolean_value)
{
        g_return_val_if_fail (preference_name != NULL, FALSE);
  
        nsCOMPtr<nsIPrefService> prefService = 
                                do_GetService (NS_PREFSERVICE_CONTRACTID);
        nsCOMPtr<nsIPrefBranch> pref;
        prefService->GetBranch ("", getter_AddRefs(pref));
  
        if (pref)
        {
                nsresult rv = pref->SetBoolPref (preference_name,
                                new_boolean_value ? PR_TRUE : PR_FALSE);
                return NS_SUCCEEDED (rv) ? TRUE : FALSE;
        }
        return FALSE;
}

static gboolean
mozilla_prefs_set_int (const char *preference_name, int new_int_value)
{
        g_return_val_if_fail (preference_name != NULL, FALSE);

        nsCOMPtr<nsIPrefService> prefService = 
                                do_GetService (NS_PREFSERVICE_CONTRACTID);
        nsCOMPtr<nsIPrefBranch> pref;
        prefService->GetBranch ("", getter_AddRefs(pref));

        if (pref)
        {
                nsresult rv = pref->SetIntPref (preference_name, new_int_value);
                return NS_SUCCEEDED (rv) ? TRUE : FALSE;
        }

        return FALSE;
}

static void
mozilla_cache_size_notifier (GConfClient *client,
                     guint cnxn_id,
                     GConfEntry *entry,
                     char *pref)
{
    int cache_size;

    cache_size = gconf_value_get_int(entry->value) * 1024;

    mozilla_prefs_set_int ("browser.cache.disk.capacity", cache_size);
}

static void
mozilla_font_size_notifier (GConfClient *client,
                    guint cnxn_id,
                    GConfEntry *entry,
                    char *pref)
{
    char key[255];
    
    sprintf (key, "font.%s", pref);

    mozilla_prefs_set_int (key, gconf_value_get_int(entry->value));
}

static void
mozilla_proxy_mode_notifier (GConfClient *client,
                     guint cnxn_id,
                     GConfEntry *entry,
                     EphyEmbedSingle *single)
{
    const char *mode;
    int mozilla_mode = 0;
    
    mode = gconf_value_get_string(entry->value);
    
    if (strcmp (mode, "manual") == 0)
    {
        mozilla_mode = 1;
    }
    else if (strcmp (mode, "auto") == 0)
    {
        mozilla_mode = 2;
    }

    mozilla_prefs_set_int ("network.proxy.type", mozilla_mode);
}

static void
mozilla_cookies_accept_notifier (GConfClient *client,
                         guint cnxn_id,
                         GConfEntry *entry,
                         char *pref)
{
    const char *mode;
    int mozilla_mode = 0;
    
    mode = gconf_value_get_string(entry->value);
    
    if (strcmp (mode, "anywhere") == 0)
    {
        mozilla_mode = 0;
    }
    else if (strcmp (mode, "current site") == 0)
    {
        mozilla_mode = 1;
    }
    else if (strcmp (mode, "nowhere") == 0)
    {
        mozilla_mode = 2;
    }

    mozilla_prefs_set_int ("network.cookie.cookieBehavior", mozilla_mode);
}

static void
mozilla_font_notifier (GConfClient *client,
               guint cnxn_id,
               GConfEntry *entry,
               char *pref)
{
    char key[255];
    
    sprintf (key, "font.name.%s", pref);

    mozilla_prefs_set_string (key, gconf_value_get_string(entry->value));
}

static void
mozilla_proxy_autoconfig_notifier (GConfClient *client,
                           guint cnxn_id,
                       GConfEntry *entry,
                       EphyEmbedSingle *single)
{
    ephy_embed_single_load_proxy_autoconf 
        (single, gconf_value_get_string(entry->value));
}

static void
add_notification_and_notify (GConfClient        *client,
                 const char         *key,
                 GConfClientNotifyFunc   func,
                 gpointer            user_data)
{
    GConfEntry *entry;
    GError *error = NULL;
    guint cnxn_id;

    cnxn_id = gconf_client_notify_add (client, key, func, user_data, NULL, &error);
    if (eel_gconf_handle_error (&error))
    {
        if (cnxn_id != EEL_GCONF_UNDEFINED_CONNECTION)
        {
            gconf_client_notify_remove (client, cnxn_id);
        }
        return;
    }

    mozilla_notifiers = g_list_append (mozilla_notifiers,
                               GUINT_TO_POINTER (cnxn_id));

    entry = gconf_client_get_entry (client, key, NULL, TRUE, &error);
    if (eel_gconf_handle_error (&error))
    {
        return;
    }
    g_return_if_fail (entry != NULL);

    if (entry->value != NULL)
    {
        func (client, cnxn_id, entry, user_data);
    }
    gconf_entry_free (entry);
}

void 
mozilla_notifiers_init(EphyEmbedSingle *single) 
{
    GConfClient *client = eel_gconf_client_get_global ();
    guint i;
    guint n_fonts_languages;
    const FontsLanguageInfo *fonts_language;

    for (i = 0; conversion_table[i].gconf_key != NULL; i++)
    {
        GConfClientNotifyFunc func = NULL;

        switch (conversion_table[i].pref_type)
        {
        case INT_PREF:
            func = (GConfClientNotifyFunc) generic_mozilla_int_notifier;
            break;
        case BOOL_PREF:
            func = (GConfClientNotifyFunc) generic_mozilla_bool_notifier;
            break;
        case STRING_PREF:
            func = (GConfClientNotifyFunc) generic_mozilla_string_notifier;
            break;
        }

        g_assert (func != NULL);
        
        add_notification_and_notify
            (client,
             conversion_table[i].gconf_key,
             func,
             (gpointer)conversion_table[i].mozilla_key);
    }

    for (i = 0; custom_notifiers[i].gconf_key != NULL; i++)
    {
        add_notification_and_notify
            (client,
             custom_notifiers[i].gconf_key,
             custom_notifiers[i].func,
             (gpointer)single);
    }

    /* fonts notifiers */
    n_fonts_languages = ephy_langs_get_n_font_languages ();
    fonts_language = ephy_langs_get_font_languages ();
    for (i = 0; i < n_fonts_languages; i++)
    {
        guint k;
        char *types [] = { "serif", "sans-serif", "cursive", "fantasy", "monospace" };
        char key[255];
        char *info;
        
        for (k = 0; k < G_N_ELEMENTS (types); k++)
        {
            info = g_strconcat (types[k], ".", fonts_language[i].code, NULL);
            
            g_snprintf (key, 255, "%s_%s_%s", CONF_RENDERING_FONT, 
                    types[k], 
                            fonts_language[i].code);
            add_notification_and_notify (client, key,
                             (GConfClientNotifyFunc)mozilla_font_notifier,
                             info);
            font_infos = g_list_append (font_infos, info);
        }

        g_snprintf (key, 255, "%s_%s", CONF_RENDERING_FONT_MIN_SIZE, fonts_language[i].code);
        info = g_strconcat ("minimum-size", ".", fonts_language[i].code, NULL);
        add_notification_and_notify (client, key,
                         (GConfClientNotifyFunc)mozilla_font_size_notifier,
                         info);
        font_infos = g_list_append (font_infos, info);

        g_snprintf (key, 255, "%s_%s", CONF_RENDERING_FONT_FIXED_SIZE, fonts_language[i].code);
        info = g_strconcat ("size.fixed", ".", fonts_language[i].code, NULL);
        add_notification_and_notify (client, key,
                         (GConfClientNotifyFunc)mozilla_font_size_notifier,
                         info);
        font_infos = g_list_append (font_infos, info);

        g_snprintf (key, 255, "%s_%s", CONF_RENDERING_FONT_VAR_SIZE, fonts_language[i].code);
        info = g_strconcat ("size.variable", ".", fonts_language[i].code, NULL);
        add_notification_and_notify (client, key,
                         (GConfClientNotifyFunc)mozilla_font_size_notifier,
                         info);
        font_infos = g_list_append (font_infos, info);      
    }
}

void 
mozilla_notifiers_free (void)
{
    GList *l;
    
    ephy_notification_remove (&mozilla_notifiers);

    for (l = font_infos; l != NULL; l = l->next)
    {
        g_free (l->data);
    }
    
    g_list_free (font_infos);
}

/**
 * generic_mozilla_string_notify: update mozilla pref to match epiphany prefs.
 *  user_data should match the mozilla key
 */
static void
generic_mozilla_string_notifier(GConfClient *client,
                guint cnxn_id,
                GConfEntry *entry,
                const char *pref_name)
{
    const gchar *value;

    /* determine type of gconf key, in order of likelyhood */
    switch (entry->value->type)
    {
        case GCONF_VALUE_STRING:
            value = gconf_value_get_string(entry->value);
            if (value)
            {
                mozilla_prefs_set_string
                    (pref_name,
                     gconf_value_get_string(entry->value));
            }
            break;

        default:    
            g_warning("Unsupported variable type");
    } 
}


/**
 * generic_mozilla_int_notify: update mozilla pref to match epiphany prefs.
 *  user_data should match the mozilla key
 */
static void
generic_mozilla_int_notifier(GConfClient *client,
                 guint cnxn_id,
                 GConfEntry *entry,
                 const char *pref_name)
{
    /* determine type of gconf key, in order of likelyhood */
    switch (entry->value->type)
    {
        case GCONF_VALUE_INT:   mozilla_prefs_set_int(pref_name,
                        gconf_value_get_int(entry->value));
                    break;
        case GCONF_VALUE_BOOL:  mozilla_prefs_set_boolean(pref_name,
                        gconf_value_get_bool(entry->value));
                    break;
        case GCONF_VALUE_STRING:    mozilla_prefs_set_string(pref_name,
                        gconf_value_get_string(entry->value));
                    break;
        default:    g_warning("Unsupported variable type");
    }
}


/**
 * generic_mozilla_bool_notify: update mozilla pref to match epiphany prefs.
 *  user_data should match the mozilla key
 */
static void
generic_mozilla_bool_notifier(GConfClient *client,
                  guint cnxn_id,
                  GConfEntry *entry,
                  const char *pref_name)
{
    /* determine type of gconf key, in order of likelyhood */
    switch (entry->value->type)
    {
        case GCONF_VALUE_BOOL:  mozilla_prefs_set_boolean(pref_name,
                        gconf_value_get_bool(entry->value));
                    break;
        case GCONF_VALUE_INT:   mozilla_prefs_set_int(pref_name,
                        gconf_value_get_int(entry->value));
                    break;
        default:    g_warning("Unsupported variable type");
    }
}

static void
mozilla_own_colors_notifier(GConfClient *client,
                guint cnxn_id,
                GConfEntry *entry,
                EphyEmbedSingle *single)
{
    mozilla_prefs_set_boolean("browser.display.use_document_colors",
                       !gconf_value_get_bool(entry->value));
}

static void
mozilla_own_fonts_notifier(GConfClient *client,
               guint cnxn_id,
               GConfEntry *entry,
               EphyEmbedSingle *single)
{
    int value;

    value = gconf_value_get_bool(entry->value) ? 0 : 1;
    mozilla_prefs_set_int("browser.display.use_document_fonts", value);
}

static void
mozilla_allow_popups_notifier(GConfClient *client,
                  guint cnxn_id,
                  GConfEntry *entry,
                  EphyEmbedSingle *single)
{
    gboolean new_val = eel_gconf_get_boolean(CONF_SECURITY_ALLOW_POPUPS);
    mozilla_prefs_set_boolean ("dom.disable_open_during_load", 
                    !new_val);
}

static char *
get_system_language ()
{
    const GList *sys_langs;
    const char *lang;

    /**
     * translate this as the comma separated list of language ranges
     * for your locale, as specified by RFC 2616, 14.4. 
     * for example for en_NZ locale this could be "en-nz,en-au,en-gb,en"
     */
    lang = _("system-language");
    
    if (strncmp (lang, "system-language", 15) != 0)
    {
        /* the l10n has it */
        return g_strdup (lang);
    }
    
    sys_langs = gnome_i18n_get_language_list ("LC_MESSAGES");

    if (sys_langs)
    {
        char *lang = (char *)sys_langs->data;

        /* FIXME this probably need to be smarter */
        if (strcmp (lang, "C") != 0)
        {
            return g_strndup (lang, 2);
        }
    }

    return NULL;
}

static void
mozilla_language_notifier(GConfClient *client,
              guint cnxn_id,
              GConfEntry *entry,
              EphyEmbedSingle *single)
{
    GSList *languages, *l;
    GString *result;

    languages = eel_gconf_get_string_list (CONF_RENDERING_LANGUAGE);
    g_return_if_fail (languages != NULL);

    result = g_string_new ("");

    for (l = languages; l != NULL; l = l->next)
    {
        char *lang = (char *)l->data;

        if (strcmp (lang, "system") == 0)
        {
            char *sys_lang;
            
            sys_lang = get_system_language ();
            if (sys_lang)
            {
                g_string_append (result, sys_lang);
                g_free (sys_lang);
            }
        }
        else
        {
            g_string_append (result, (char *)l->data);
        }

        if (l->next) g_string_append (result, ",");
    }
    
    mozilla_prefs_set_string ("intl.accept_languages", result->str);

    g_string_free (result, TRUE);
    
    g_slist_foreach (languages, (GFunc) g_free, NULL);
    g_slist_free (languages);
}