gecko/toolkit/system/gnome/nsGConfService.cpp
2012-07-30 17:20:58 +03:00

306 lines
8.8 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/Util.h"
#include "nsGConfService.h"
#include "nsStringAPI.h"
#include "nsCOMPtr.h"
#include "nsComponentManagerUtils.h"
#include "nsISupportsPrimitives.h"
#include "nsIMutableArray.h"
#include "prlink.h"
#include <gconf/gconf-client.h>
using namespace mozilla;
#define GCONF_FUNCTIONS \
FUNC(gconf_client_get_default, GConfClient*, (void)) \
FUNC(gconf_client_get_bool, gboolean, (GConfClient*, const gchar*, GError**)) \
FUNC(gconf_client_get_string, gchar*, (GConfClient*, const gchar*, GError**)) \
FUNC(gconf_client_get_int, gint, (GConfClient*, const gchar*, GError**)) \
FUNC(gconf_client_get_float, gdouble, (GConfClient*, const gchar*, GError**)) \
FUNC(gconf_client_get_list, GSList*, (GConfClient*, const gchar*, GConfValueType, GError**)) \
FUNC(gconf_client_set_bool, gboolean, (GConfClient*, const gchar*, gboolean, GError**)) \
FUNC(gconf_client_set_string, gboolean, (GConfClient*, const gchar*, const gchar*, GError**)) \
FUNC(gconf_client_set_int, gboolean, (GConfClient*, const gchar*, gint, GError**)) \
FUNC(gconf_client_set_float, gboolean, (GConfClient*, const gchar*, gdouble, GError**)) \
FUNC(gconf_client_unset, gboolean, (GConfClient*, const gchar*, GError**))
#define FUNC(name, type, params) \
typedef type (*_##name##_fn) params; \
static _##name##_fn _##name;
GCONF_FUNCTIONS
#undef FUNC
#define gconf_client_get_default _gconf_client_get_default
#define gconf_client_get_bool _gconf_client_get_bool
#define gconf_client_get_string _gconf_client_get_string
#define gconf_client_get_int _gconf_client_get_int
#define gconf_client_get_float _gconf_client_get_float
#define gconf_client_get_list _gconf_client_get_list
#define gconf_client_set_bool _gconf_client_set_bool
#define gconf_client_set_string _gconf_client_set_string
#define gconf_client_set_int _gconf_client_set_int
#define gconf_client_set_float _gconf_client_set_float
#define gconf_client_unset _gconf_client_unset
static PRLibrary *gconfLib = nullptr;
typedef void (*nsGConfFunc)();
struct nsGConfDynamicFunction {
const char *functionName;
nsGConfFunc *function;
};
nsGConfService::~nsGConfService()
{
if (mClient)
g_object_unref(mClient);
// We don't unload gconf here because liborbit uses atexit(). In addition to
// this, it's not a good idea to unload any gobject based library, as it
// leaves types registered in glib's type system
}
nsresult
nsGConfService::Init()
{
#define FUNC(name, type, params) { #name, (nsGConfFunc *)&_##name },
static const nsGConfDynamicFunction kGConfSymbols[] = {
GCONF_FUNCTIONS
};
#undef FUNC
if (!gconfLib) {
gconfLib = PR_LoadLibrary("libgconf-2.so.4");
if (!gconfLib)
return NS_ERROR_FAILURE;
}
for (PRUint32 i = 0; i < ArrayLength(kGConfSymbols); i++) {
*kGConfSymbols[i].function =
PR_FindFunctionSymbol(gconfLib, kGConfSymbols[i].functionName);
if (!*kGConfSymbols[i].function) {
return NS_ERROR_FAILURE;
}
}
mClient = gconf_client_get_default();
return mClient ? NS_OK : NS_ERROR_FAILURE;
}
NS_IMPL_ISUPPORTS1(nsGConfService, nsIGConfService)
NS_IMETHODIMP
nsGConfService::GetBool(const nsACString &aKey, bool *aResult)
{
GError* error = nullptr;
*aResult = gconf_client_get_bool(mClient, PromiseFlatCString(aKey).get(),
&error);
if (error) {
g_error_free(error);
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
nsGConfService::GetString(const nsACString &aKey, nsACString &aResult)
{
GError* error = nullptr;
gchar *result = gconf_client_get_string(mClient,
PromiseFlatCString(aKey).get(),
&error);
if (error) {
g_error_free(error);
return NS_ERROR_FAILURE;
}
// We do a string copy here so that the caller doesn't need to worry about
// freeing the string with g_free().
aResult.Assign(result);
g_free(result);
return NS_OK;
}
NS_IMETHODIMP
nsGConfService::GetInt(const nsACString &aKey, PRInt32* aResult)
{
GError* error = nullptr;
*aResult = gconf_client_get_int(mClient, PromiseFlatCString(aKey).get(),
&error);
if (error) {
g_error_free(error);
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
nsGConfService::GetFloat(const nsACString &aKey, float* aResult)
{
GError* error = nullptr;
*aResult = gconf_client_get_float(mClient, PromiseFlatCString(aKey).get(),
&error);
if (error) {
g_error_free(error);
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
nsGConfService::GetStringList(const nsACString &aKey, nsIArray** aResult)
{
nsCOMPtr<nsIMutableArray> items(do_CreateInstance(NS_ARRAY_CONTRACTID));
if (!items)
return NS_ERROR_OUT_OF_MEMORY;
GError* error = nullptr;
GSList* list = gconf_client_get_list(mClient, PromiseFlatCString(aKey).get(),
GCONF_VALUE_STRING, &error);
if (error) {
g_error_free(error);
return NS_ERROR_FAILURE;
}
for (GSList* l = list; l; l = l->next) {
nsCOMPtr<nsISupportsString> obj(do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID));
if (!obj) {
g_slist_free(list);
return NS_ERROR_OUT_OF_MEMORY;
}
obj->SetData(NS_ConvertUTF8toUTF16((const char*)l->data));
items->AppendElement(obj, false);
g_free(l->data);
}
g_slist_free(list);
NS_ADDREF(*aResult = items);
return NS_OK;
}
NS_IMETHODIMP
nsGConfService::SetBool(const nsACString &aKey, bool aValue)
{
bool res = gconf_client_set_bool(mClient, PromiseFlatCString(aKey).get(),
aValue, nullptr);
return res ? NS_OK : NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsGConfService::SetString(const nsACString &aKey, const nsACString &aValue)
{
bool res = gconf_client_set_string(mClient, PromiseFlatCString(aKey).get(),
PromiseFlatCString(aValue).get(),
nullptr);
return res ? NS_OK : NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsGConfService::SetInt(const nsACString &aKey, PRInt32 aValue)
{
bool res = gconf_client_set_int(mClient, PromiseFlatCString(aKey).get(),
aValue, nullptr);
return res ? NS_OK : NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsGConfService::SetFloat(const nsACString &aKey, float aValue)
{
bool res = gconf_client_set_float(mClient, PromiseFlatCString(aKey).get(),
aValue, nullptr);
return res ? NS_OK : NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsGConfService::GetAppForProtocol(const nsACString &aScheme, bool *aEnabled,
nsACString &aHandler)
{
nsCAutoString key("/desktop/gnome/url-handlers/");
key.Append(aScheme);
key.Append("/command");
GError *err = nullptr;
gchar *command = gconf_client_get_string(mClient, key.get(), &err);
if (!err && command) {
key.Replace(key.Length() - 7, 7, NS_LITERAL_CSTRING("enabled"));
*aEnabled = gconf_client_get_bool(mClient, key.get(), &err);
} else {
*aEnabled = false;
}
aHandler.Assign(command);
g_free(command);
if (err) {
g_error_free(err);
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
nsGConfService::HandlerRequiresTerminal(const nsACString &aScheme,
bool *aResult)
{
nsCAutoString key("/desktop/gnome/url-handlers/");
key.Append(aScheme);
key.Append("/requires_terminal");
GError *err = nullptr;
*aResult = gconf_client_get_bool(mClient, key.get(), &err);
if (err) {
g_error_free(err);
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
nsGConfService::SetAppForProtocol(const nsACString &aScheme,
const nsACString &aCommand)
{
nsCAutoString key("/desktop/gnome/url-handlers/");
key.Append(aScheme);
key.Append("/command");
bool res = gconf_client_set_string(mClient, key.get(),
PromiseFlatCString(aCommand).get(),
nullptr);
if (res) {
key.Replace(key.Length() - 7, 7, NS_LITERAL_CSTRING("enabled"));
res = gconf_client_set_bool(mClient, key.get(), true, nullptr);
if (res) {
key.Replace(key.Length() - 7, 7, NS_LITERAL_CSTRING("needs_terminal"));
res = gconf_client_set_bool(mClient, key.get(), false, nullptr);
if (res) {
key.Replace(key.Length() - 14, 14, NS_LITERAL_CSTRING("command-id"));
res = gconf_client_unset(mClient, key.get(), nullptr);
}
}
}
return res ? NS_OK : NS_ERROR_FAILURE;
}