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https://github.com/keymanapp/keyman.git
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80ae8e6289
Gentoo doesn't use systemd. `libelogind` or `basu` implement some aspects of systemd, so we use that on Gentoo (or rather when `libsystemd` is not available but `libelogind` or `basu` is). Patch from https://forums.gentoo.org/viewtopic.php?p=8850566. See also https://community.software.sil.org/t/keyman-for-gentoo-linux/9615. Cherry-pick-of: #12889
111 lines
3 KiB
C++
111 lines
3 KiB
C++
#include "config.h"
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#include <cassert>
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#if DBUS_IMPLEMENTATION == SYSTEMD
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#include <systemd/sd-bus.h>
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#else
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#include <basu/sd-bus.h>
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#endif
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#include "KeymanSystemServiceClient.h"
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#define KEYMAN_BUS_NAME "com.keyman.SystemService1"
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#define KEYMAN_INTERFACE_NAME "com.keyman.SystemService1.System"
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#define KEYMAN_OBJECT_PATH "/com/keyman/SystemService1/System"
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extern gboolean testing;
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class KeymanSystemServiceClient {
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private:
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sd_bus_error *error = NULL;
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sd_bus_message *msg = NULL;
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sd_bus *bus = NULL;
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public:
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KeymanSystemServiceClient();
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~KeymanSystemServiceClient();
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void SetCapsLockIndicator(guint32 capsLock);
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gint32 GetCapsLockIndicator();
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};
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KeymanSystemServiceClient::KeymanSystemServiceClient() {
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int result;
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if (testing) {
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result = sd_bus_open_user(&bus);
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} else {
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result = sd_bus_default_system(&bus);
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}
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if (result < 0) {
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g_error("%s: Can't get connection: %s", __FUNCTION__, strerror(-result));
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}
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}
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KeymanSystemServiceClient::~KeymanSystemServiceClient() {
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if (error) { sd_bus_error_free(error); }
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if (msg) { sd_bus_message_unref(msg); }
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if (bus) { sd_bus_unref(bus); }
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}
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void KeymanSystemServiceClient::SetCapsLockIndicator(guint32 capsLock) {
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// If Set/GetCapsLockIndicator is called more than once and previously
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// failed, we will leak `error`.
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assert(error == NULL);
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if (!bus) {
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// we already reported the error, so just return
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return;
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}
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if (capsLock > 1) {
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g_error("%s: Invalid value '%d' for parameter capsLock", __FUNCTION__, capsLock);
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return;
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}
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int result = sd_bus_call_method(bus, KEYMAN_BUS_NAME, KEYMAN_OBJECT_PATH,
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KEYMAN_INTERFACE_NAME, "SetCapsLockIndicator", error, &msg, "b", capsLock);
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if (result < 0) {
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g_error("%s: Failed to call method SetCapsLockIndicator: %s. %s. %s.",
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__FUNCTION__, strerror(-result), error ? error->name : "-", error ? error->message : "-");
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return;
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}
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}
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gint32 KeymanSystemServiceClient::GetCapsLockIndicator() {
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// If Set/GetCapsLockIndicator is called more than once and previously
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// failed, we will leak `error`.
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assert(error == NULL);
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if (!bus) {
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// we already reported the error, so just return
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return -1;
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}
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int result = sd_bus_call_method(bus, KEYMAN_BUS_NAME, KEYMAN_OBJECT_PATH,
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KEYMAN_INTERFACE_NAME, "GetCapsLockIndicator", error, &msg, "");
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if (result < 0) {
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g_error("%s: Failed to call method GetCapsLockIndicator: %s. %s. %s.",
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__FUNCTION__, strerror(-result), error ? error->name : "-", error ? error->message : "-");
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return -1;
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}
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guint32 capsLock = 0;
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result = sd_bus_message_read(msg, "b", &capsLock);
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if (result < 0) {
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g_error("%s: Failed to parse response message: %s",
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__FUNCTION__, strerror(-result));
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return -1;
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}
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return capsLock;
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}
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void set_capslock_indicator(
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guint32 capsLock
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) {
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KeymanSystemServiceClient client;
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client.SetCapsLockIndicator(capsLock);
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}
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gint32 get_capslock_indicator() {
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KeymanSystemServiceClient client;
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return client.GetCapsLockIndicator();
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}
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