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setup-kde.cpp
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setup-kde.cpp
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// Copyright (c) 2020 TUXEDO Computers GmbH <[email protected]>
//
// This file is part of TUXEDO Touchpad Switch.
//
// This file 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 3 of the License, or
// (at your option) any later version.
//
// TUXEDO Touchpad Switch 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 TUXEDO Touchpad Switch. If not, see <https://www.gnu.org/licenses/>.
#include "setup-kde.h"
#include <iostream>
#include <sys/file.h>
#include <gio/gio.h>
#include "touchpad-control.h"
using std::cerr;
using std::endl;
int lockfile;
gboolean isMousePluggedInPrev;
gboolean isEnabledSave;
gboolean isSuspending;
GDBusProxy *kded_modules_touchpad = NULL;
GDBusProxy *solid_power_management = NULL;
static void kded_modules_touchpad_handler(GDBusProxy *proxy, __attribute__((unused)) char *sender_name, char *signal_name, GVariant *parameters, __attribute__((unused)) gpointer user_data) {
if (!isSuspending) {
if (!strcmp("enabledChanged", signal_name) && g_variant_is_of_type(parameters, (const GVariantType *)"(b)") && g_variant_n_children(parameters)) {
GVariant *enabledChanged = g_variant_get_child_value(parameters, 0);
isEnabledSave = g_variant_get_boolean(enabledChanged);
if (isEnabledSave) {
if (set_touchpad_state(1)) {
cerr << "kded_modules_touchpad_handler(...): set_touchpad_state(...) failed." << endl;
}
}
else {
if (set_touchpad_state(0)) {
cerr << "kded_modules_touchpad_handler(...): set_touchpad_state(...) failed." << endl;
}
}
g_variant_unref(enabledChanged);
}
else if (!strcmp("mousePluggedInChanged", signal_name) && g_variant_is_of_type(parameters, (const GVariantType *)"(b)") && g_variant_n_children(parameters)) {
GVariant *isMousePluggedInParam = g_dbus_proxy_call_sync(proxy, "isMousePluggedIn", NULL, G_DBUS_CALL_FLAGS_NONE, G_MAXINT, NULL, NULL);
if (isMousePluggedInParam != NULL && g_variant_is_of_type(isMousePluggedInParam, (const GVariantType *)"(b)") && g_variant_n_children(isMousePluggedInParam)) {
GVariant *isMousePluggedIn = g_variant_get_child_value(isMousePluggedInParam, 0);
if (isMousePluggedInPrev && !g_variant_get_boolean(isMousePluggedIn)) {
if (set_touchpad_state(1)) {
cerr << "kded_modules_touchpad_handler(...): set_touchpad_state(...) failed." << endl;
}
if (flock(lockfile, LOCK_UN)) {
cerr << "kded_modules_touchpad_handler(...): flock(...) failed." << endl;
}
}
else if (!isMousePluggedInPrev && g_variant_get_boolean(isMousePluggedIn)) {
if (flock(lockfile, LOCK_EX)) {
cerr << "kded_modules_touchpad_handler(...): flock(...) failed." << endl;
}
if (set_touchpad_state(isEnabledSave)) {
cerr << "kded_modules_touchpad_handler(...): set_touchpad_state(...) failed." << endl;
}
}
isMousePluggedInPrev = g_variant_get_boolean(isMousePluggedIn);
g_variant_unref(isMousePluggedIn);
g_variant_unref(isMousePluggedInParam);
}
else {
cerr << "kded_modules_touchpad_handler(...): g_dbus_proxy_call_sync(...) failed." << endl;
}
}
}
}
static void solid_power_management_handler(__attribute__((unused)) GDBusProxy *proxy, __attribute__((unused)) char *sender_name, char *signal_name, __attribute__((unused)) GVariant *parameters, __attribute__((unused)) gpointer user_data) {
if (!strcmp("aboutToSuspend", signal_name)) {
isSuspending = true;
if (set_touchpad_state(1)) {
cerr << "solid_power_management_handler(...): set_touchpad_state(...) failed." << endl;
}
if (flock(lockfile, LOCK_UN)) {
cerr << "solid_power_management_handler(...): flock(...) failed." << endl;
}
}
else if (!strcmp("resumingFromSuspend", signal_name)) {
isSuspending = false;
if (flock(lockfile, LOCK_EX)) {
cerr << "solid_power_management_handler(...): flock(...) failed." << endl;
}
if (set_touchpad_state(isEnabledSave)) {
cerr << "solid_power_management_handler(...): set_touchpad_state(...) failed." << endl;
}
}
}
static int kded_modules_touchpad_init(GDBusProxy *proxy) {
GVariant *isEnabledParam = g_dbus_proxy_call_sync(proxy, "isEnabled", NULL, G_DBUS_CALL_FLAGS_NONE, G_MAXINT, NULL, NULL);
if (isEnabledParam != NULL && g_variant_is_of_type(isEnabledParam, (const GVariantType *)"(b)") && g_variant_n_children(isEnabledParam)) {
GVariant *isEnabled = g_variant_get_child_value(isEnabledParam, 0);
// init isEnabledSave
isEnabledSave = g_variant_get_boolean(isEnabled);
if (isEnabledSave) {
if (set_touchpad_state(1)) {
cerr << "kded_modules_touchpad_init(...): set_touchpad_state(...) failed." << endl;
return EXIT_FAILURE;
}
}
else {
if (set_touchpad_state(0)) {
cerr << "kded_modules_touchpad_init(...): set_touchpad_state(...) failed." << endl;
return EXIT_FAILURE;
}
}
g_variant_unref(isEnabled);
g_variant_unref(isEnabledParam);
}
else {
cerr << "kded_modules_touchpad_init(...): g_dbus_proxy_call_sync(...) failed." << endl;
return EXIT_FAILURE;
}
GVariant *isMousePluggedInParam = g_dbus_proxy_call_sync(proxy, "isMousePluggedIn", NULL, G_DBUS_CALL_FLAGS_NONE, G_MAXINT, NULL, NULL);
if (isMousePluggedInParam != NULL && g_variant_is_of_type(isMousePluggedInParam, (const GVariantType *)"(b)") && g_variant_n_children(isMousePluggedInParam)) {
GVariant *isMousePluggedIn = g_variant_get_child_value(isMousePluggedInParam, 0);
// init isMousePluggedInPrev, should always be true on init, this is here to be on the save side
isMousePluggedInPrev = g_variant_get_boolean(isMousePluggedIn);
// isMousePluggedInPrev just got init so it holds the current value
if (!isMousePluggedInPrev) {
if (set_touchpad_state(1)) {
cerr << "kded_modules_touchpad_init(...): set_touchpad_state(...) failed." << endl;
return EXIT_FAILURE;
}
if (flock(lockfile, LOCK_UN)) {
cerr << "kded_modules_touchpad_init(...): flock(...) failed." << endl;
return EXIT_FAILURE;
}
}
g_variant_unref(isMousePluggedIn);
g_variant_unref(isMousePluggedInParam);
}
else {
cerr << "kded_modules_touchpad_init(...): g_dbus_proxy_call_sync(...) failed." << endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
int setup_kde(int lockfile_arg) {
lockfile = lockfile_arg;
kded_modules_touchpad = g_dbus_proxy_new_for_bus_sync(G_BUS_TYPE_SESSION,
G_DBUS_PROXY_FLAGS_NONE, NULL,
"org.kde.kded6",
"/modules/kded_touchpad",
"org.kde.touchpad",
NULL, NULL);
// call a random method to check if object exists
GVariant *isMousePluggedInParam = g_dbus_proxy_call_sync(kded_modules_touchpad,
"isMousePluggedIn",
NULL, G_DBUS_CALL_FLAGS_NONE,
G_MAXINT, NULL, NULL);
if (isMousePluggedInParam == NULL) {
g_object_unref(kded_modules_touchpad);
g_variant_unref(isMousePluggedInParam);
kded_modules_touchpad = g_dbus_proxy_new_for_bus_sync(G_BUS_TYPE_SESSION,
G_DBUS_PROXY_FLAGS_NONE, NULL,
"org.kde.kded5",
"/modules/kded_touchpad",
"org.kde.touchpad",
NULL, NULL);
// call a random method to check if object exists
isMousePluggedInParam = g_dbus_proxy_call_sync(kded_modules_touchpad,
"isMousePluggedIn",
NULL, G_DBUS_CALL_FLAGS_NONE,
G_MAXINT, NULL, NULL);
if (isMousePluggedInParam == NULL) {
g_object_unref(kded_modules_touchpad);
g_variant_unref(isMousePluggedInParam);
kded_modules_touchpad = g_dbus_proxy_new_for_bus_sync(G_BUS_TYPE_SESSION,
G_DBUS_PROXY_FLAGS_NONE, NULL,
"org.kde.kded5",
"/modules/touchpad",
"org.kde.touchpad",
NULL, NULL);
// call a random method to check if object exists
isMousePluggedInParam = g_dbus_proxy_call_sync(kded_modules_touchpad,
"isMousePluggedIn",
NULL, G_DBUS_CALL_FLAGS_NONE,
G_MAXINT, NULL, NULL);
if (isMousePluggedInParam == NULL) {
g_clear_object(&kded_modules_touchpad);
g_variant_unref(isMousePluggedInParam);
cerr << "setup_kde(...): g_dbus_proxy_new_for_bus_sync(...) failed." << endl;
return EXIT_FAILURE;
}
}
}
g_variant_unref(isMousePluggedInParam);
if (g_signal_connect(kded_modules_touchpad, "g-signal", G_CALLBACK(kded_modules_touchpad_handler), NULL) < 1) {
cerr << "setup_kde(...): g_signal_connect(...) failed." << endl;
g_clear_object(&kded_modules_touchpad);
return EXIT_FAILURE;
}
// sync on wakeup
solid_power_management = g_dbus_proxy_new_for_bus_sync(G_BUS_TYPE_SESSION,
G_DBUS_PROXY_FLAGS_NONE, NULL,
"org.kde.Solid.PowerManagement",
"/org/kde/Solid/PowerManagement/Actions/SuspendSession",
"org.kde.Solid.PowerManagement.Actions.SuspendSession",
NULL, NULL);
if (solid_power_management == NULL) {
cerr << "setup_kde(...): g_dbus_proxy_new_for_bus_sync(...) failed." << endl;
g_clear_object(&kded_modules_touchpad);
return EXIT_FAILURE;
}
if (g_signal_connect(solid_power_management, "g-signal", G_CALLBACK(solid_power_management_handler), NULL) < 1) {
cerr << "setup_kde(...): g_signal_connect(...) failed." << endl;
clean_kde();
return EXIT_FAILURE;
}
// sync on start
if (kded_modules_touchpad_init(kded_modules_touchpad) == EXIT_FAILURE) {
cerr << "setup_kde(...): kded_modules_touchpad_init(...) failed." << endl;
clean_kde();
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
void clean_kde() {
g_clear_object(&kded_modules_touchpad);
g_clear_object(&solid_power_management);
}