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Handle cursor size in the custom GTK integration

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This commit is contained in:
Ilya Fedin 2020-11-26 04:51:23 +04:00 committed by John Preston
parent 86be105c25
commit 4bc6c6c3c8
1 changed files with 25 additions and 0 deletions
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25
Telegram/SourceFiles/platform/linux/linux_libs.cpp
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@ -161,6 +161,14 @@ bool IconThemeShouldBeSet() {
return Result;
}
bool CursorSizeShouldBeSet() {
// change the cursor size only on Wayland and if it wasn't already set
static const auto Result = IsWayland()
&& qEnvironmentVariableIsEmpty("XCURSOR_SIZE");
return Result;
}
void SetIconTheme() {
Core::Sandbox::Instance().customEnterFromEventLoop([] {
if (GtkSettingSupported()
@ -183,6 +191,21 @@ void SetIconTheme() {
});
}
void SetCursorSize() {
Core::Sandbox::Instance().customEnterFromEventLoop([] {
if (GtkSettingSupported()
&& GtkLoaded()
&& CursorSizeShouldBeSet()) {
DEBUG_LOG(("Setting GTK cursor size"));
const auto newCursorSize = GtkSetting<gint>("gtk-cursor-theme-size");
qputenv("XCURSOR_SIZE", QByteArray::number(newCursorSize));
DEBUG_LOG(("New cursor size: %1").arg(newCursorSize));
}
});
}
void DarkModeChanged() {
Core::Sandbox::Instance().customEnterFromEventLoop([] {
Core::App().settings().setSystemDarkMode(IsDarkMode());
@ -319,10 +342,12 @@ void start() {
LOAD_SYMBOL(lib_gtk, "gtk_app_chooser_get_type", gtk_app_chooser_get_type);
SetIconTheme();
SetCursorSize();
const auto settings = gtk_settings_get_default();
g_signal_connect(settings, "notify::gtk-icon-theme-name", G_CALLBACK(SetIconTheme), nullptr);
g_signal_connect(settings, "notify::gtk-theme-name", G_CALLBACK(DarkModeChanged), nullptr);
g_signal_connect(settings, "notify::gtk-cursor-theme-size", G_CALLBACK(SetCursorSize), nullptr);
if (!gtk_check_version(3, 0, 0)) {
g_signal_connect(settings, "notify::gtk-application-prefer-dark-theme", G_CALLBACK(DarkModeChanged), nullptr);