/* This file is part of Telegram Desktop, the official desktop application for the Telegram messaging service. For license and copyright information please follow this link: https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL */ #include "platform/linux/linux_libs.h" #include "base/platform/base_platform_info.h" #include "platform/linux/linux_gdk_helper.h" #include "platform/linux/linux_desktop_environment.h" #include "platform/linux/specific_linux.h" extern "C" { #include } namespace Platform { namespace Libs { namespace { bool gtkTriedToInit = false; bool loadLibrary(QLibrary &lib, const char *name, int version) { #if defined DESKTOP_APP_USE_PACKAGED && !defined DESKTOP_APP_USE_PACKAGED_LAZY return true; #else // DESKTOP_APP_USE_PACKAGED && !DESKTOP_APP_USE_PACKAGED_LAZY DEBUG_LOG(("Loading '%1' with version %2...").arg(QLatin1String(name)).arg(version)); lib.setFileNameAndVersion(QLatin1String(name), version); if (lib.load()) { DEBUG_LOG(("Loaded '%1' with version %2!").arg(QLatin1String(name)).arg(version)); return true; } lib.setFileNameAndVersion(QLatin1String(name), QString()); if (lib.load()) { DEBUG_LOG(("Loaded '%1' without version!").arg(QLatin1String(name))); return true; } LOG(("Could not load '%1' with version %2 :(").arg(QLatin1String(name)).arg(version)); return false; #endif // !DESKTOP_APP_USE_PACKAGED || DESKTOP_APP_USE_PACKAGED_LAZY } #ifndef TDESKTOP_DISABLE_GTK_INTEGRATION template T gtkSetting(const gchar *propertyName) { GtkSettings *settings = gtk_settings_get_default(); T value; g_object_get(settings, propertyName, &value, nullptr); return value; } QString gtkSetting(const gchar *propertyName) { gchararray value = gtkSetting(propertyName); QString str = QString::fromUtf8(value); g_free(value); return str; } void gtkMessageHandler( const gchar *log_domain, GLogLevelFlags log_level, const gchar *message, gpointer unused_data) { // Silence false-positive Gtk warnings (we are using Xlib to set // the WM_TRANSIENT_FOR hint). if (message != qstr("GtkDialog mapped without a transient parent. " "This is discouraged.")) { // For other messages, call the default handler. g_log_default_handler(log_domain, log_level, message, unused_data); } } bool setupGtkBase(QLibrary &lib_gtk) { if (!LOAD_SYMBOL(lib_gtk, "gtk_init_check", gtk_init_check)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_settings_get_default", gtk_settings_get_default)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_widget_show", gtk_widget_show)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_widget_hide", gtk_widget_hide)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_widget_get_window", gtk_widget_get_window)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_widget_realize", gtk_widget_realize)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_widget_hide_on_delete", gtk_widget_hide_on_delete)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_widget_destroy", gtk_widget_destroy)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_clipboard_get", gtk_clipboard_get)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_clipboard_store", gtk_clipboard_store)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_clipboard_wait_for_contents", gtk_clipboard_wait_for_contents)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_clipboard_wait_for_image", gtk_clipboard_wait_for_image)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_selection_data_targets_include_image", gtk_selection_data_targets_include_image)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_selection_data_free", gtk_selection_data_free)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_dialog_new", gtk_file_chooser_dialog_new)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_get_type", gtk_file_chooser_get_type)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_image_get_type", gtk_image_get_type)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_set_current_folder", gtk_file_chooser_set_current_folder)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_get_current_folder", gtk_file_chooser_get_current_folder)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_set_current_name", gtk_file_chooser_set_current_name)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_select_filename", gtk_file_chooser_select_filename)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_get_filenames", gtk_file_chooser_get_filenames)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_set_filter", gtk_file_chooser_set_filter)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_get_filter", gtk_file_chooser_get_filter)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_window_get_type", gtk_window_get_type)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_window_set_title", gtk_window_set_title)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_set_local_only", gtk_file_chooser_set_local_only)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_set_action", gtk_file_chooser_set_action)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_set_select_multiple", gtk_file_chooser_set_select_multiple)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_set_do_overwrite_confirmation", gtk_file_chooser_set_do_overwrite_confirmation)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_remove_filter", gtk_file_chooser_remove_filter)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_filter_set_name", gtk_file_filter_set_name)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_filter_add_pattern", gtk_file_filter_add_pattern)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_add_filter", gtk_file_chooser_add_filter)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_set_preview_widget", gtk_file_chooser_set_preview_widget)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_get_preview_filename", gtk_file_chooser_get_preview_filename)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_chooser_set_preview_widget_active", gtk_file_chooser_set_preview_widget_active)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_file_filter_new", gtk_file_filter_new)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_image_new", gtk_image_new)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_image_set_from_pixbuf", gtk_image_set_from_pixbuf)) return false; if (!LOAD_SYMBOL(lib_gtk, "gdk_window_set_modal_hint", gdk_window_set_modal_hint)) return false; if (!LOAD_SYMBOL(lib_gtk, "gdk_window_focus", gdk_window_focus)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_dialog_get_type", gtk_dialog_get_type)) return false; if (!LOAD_SYMBOL(lib_gtk, "gtk_dialog_run", gtk_dialog_run)) return false; if (!LOAD_SYMBOL(lib_gtk, "gdk_atom_intern", gdk_atom_intern)) return false; if (LOAD_SYMBOL(lib_gtk, "gdk_set_allowed_backends", gdk_set_allowed_backends)) { // We work only with X11 GDK backend. // Otherwise we get segfault in Ubuntu 17.04 in gtk_init_check() call. // See https://github.com/telegramdesktop/tdesktop/issues/3176 // See https://github.com/telegramdesktop/tdesktop/issues/3162 if(Platform::IsWayland() && !lib_gtk.fileName().contains("gtk-x11-2.0")) { DEBUG_LOG(("Limit allowed GDK backends to wayland")); gdk_set_allowed_backends("wayland"); } else { DEBUG_LOG(("Limit allowed GDK backends to x11")); gdk_set_allowed_backends("x11"); } } // gtk_init will reset the Xlib error handler, and that causes // Qt applications to quit on X errors. Therefore, we need to manually restore it. int (*oldErrorHandler)(Display *, XErrorEvent *) = XSetErrorHandler(nullptr); DEBUG_LOG(("Library gtk functions loaded!")); gtkTriedToInit = true; if (!gtk_init_check(0, 0)) { gtk_init_check = nullptr; DEBUG_LOG(("Failed to gtk_init_check(0, 0)!")); return false; } DEBUG_LOG(("Checked gtk with gtk_init_check!")); XSetErrorHandler(oldErrorHandler); // Use our custom log handler. g_log_set_handler("Gtk", G_LOG_LEVEL_MESSAGE, gtkMessageHandler, nullptr); return true; } #endif // !TDESKTOP_DISABLE_GTK_INTEGRATION } // namespace #ifndef TDESKTOP_DISABLE_GTK_INTEGRATION f_gtk_init_check gtk_init_check = nullptr; f_gtk_settings_get_default gtk_settings_get_default = nullptr; f_gtk_widget_show gtk_widget_show = nullptr; f_gtk_widget_hide gtk_widget_hide = nullptr; f_gtk_widget_get_window gtk_widget_get_window = nullptr; f_gtk_widget_realize gtk_widget_realize = nullptr; f_gtk_widget_hide_on_delete gtk_widget_hide_on_delete = nullptr; f_gtk_widget_destroy gtk_widget_destroy = nullptr; f_gtk_clipboard_get gtk_clipboard_get = nullptr; f_gtk_clipboard_store gtk_clipboard_store = nullptr; f_gtk_clipboard_wait_for_contents gtk_clipboard_wait_for_contents = nullptr; f_gtk_clipboard_wait_for_image gtk_clipboard_wait_for_image = nullptr; f_gtk_selection_data_targets_include_image gtk_selection_data_targets_include_image = nullptr; f_gtk_selection_data_free gtk_selection_data_free = nullptr; f_gtk_file_chooser_dialog_new gtk_file_chooser_dialog_new = nullptr; f_gtk_file_chooser_get_type gtk_file_chooser_get_type = nullptr; f_gtk_image_get_type gtk_image_get_type = nullptr; f_gtk_file_chooser_set_current_folder gtk_file_chooser_set_current_folder = nullptr; f_gtk_file_chooser_get_current_folder gtk_file_chooser_get_current_folder = nullptr; f_gtk_file_chooser_set_current_name gtk_file_chooser_set_current_name = nullptr; f_gtk_file_chooser_select_filename gtk_file_chooser_select_filename = nullptr; f_gtk_file_chooser_get_filenames gtk_file_chooser_get_filenames = nullptr; f_gtk_file_chooser_set_filter gtk_file_chooser_set_filter = nullptr; f_gtk_file_chooser_get_filter gtk_file_chooser_get_filter = nullptr; f_gtk_window_get_type gtk_window_get_type = nullptr; f_gtk_window_set_title gtk_window_set_title = nullptr; f_gtk_file_chooser_set_local_only gtk_file_chooser_set_local_only = nullptr; f_gtk_file_chooser_set_action gtk_file_chooser_set_action = nullptr; f_gtk_file_chooser_set_select_multiple gtk_file_chooser_set_select_multiple = nullptr; f_gtk_file_chooser_set_do_overwrite_confirmation gtk_file_chooser_set_do_overwrite_confirmation = nullptr; f_gtk_file_chooser_remove_filter gtk_file_chooser_remove_filter = nullptr; f_gtk_file_filter_set_name gtk_file_filter_set_name = nullptr; f_gtk_file_filter_add_pattern gtk_file_filter_add_pattern = nullptr; f_gtk_file_chooser_add_filter gtk_file_chooser_add_filter = nullptr; f_gtk_file_chooser_set_preview_widget gtk_file_chooser_set_preview_widget = nullptr; f_gtk_file_chooser_get_preview_filename gtk_file_chooser_get_preview_filename = nullptr; f_gtk_file_chooser_set_preview_widget_active gtk_file_chooser_set_preview_widget_active = nullptr; f_gtk_file_filter_new gtk_file_filter_new = nullptr; f_gtk_image_new gtk_image_new = nullptr; f_gtk_image_set_from_pixbuf gtk_image_set_from_pixbuf = nullptr; f_gtk_dialog_get_widget_for_response gtk_dialog_get_widget_for_response = nullptr; f_gtk_button_set_label gtk_button_set_label = nullptr; f_gtk_button_get_type gtk_button_get_type = nullptr; f_gdk_set_allowed_backends gdk_set_allowed_backends = nullptr; f_gdk_window_set_modal_hint gdk_window_set_modal_hint = nullptr; f_gdk_window_focus gdk_window_focus = nullptr; f_gtk_dialog_get_type gtk_dialog_get_type = nullptr; f_gtk_dialog_run gtk_dialog_run = nullptr; f_gdk_atom_intern gdk_atom_intern = nullptr; f_gdk_pixbuf_new_from_file_at_size gdk_pixbuf_new_from_file_at_size = nullptr; f_gdk_pixbuf_get_has_alpha gdk_pixbuf_get_has_alpha = nullptr; f_gdk_pixbuf_get_pixels gdk_pixbuf_get_pixels = nullptr; f_gdk_pixbuf_get_width gdk_pixbuf_get_width = nullptr; f_gdk_pixbuf_get_height gdk_pixbuf_get_height = nullptr; f_gdk_pixbuf_get_rowstride gdk_pixbuf_get_rowstride = nullptr; #endif // !TDESKTOP_DISABLE_GTK_INTEGRATION void start() { #ifndef TDESKTOP_DISABLE_GTK_INTEGRATION if (!UseGtkIntegration()) { return; } DEBUG_LOG(("Loading libraries")); bool gtkLoaded = false; QLibrary lib_gtk; lib_gtk.setLoadHints(QLibrary::DeepBindHint); if (loadLibrary(lib_gtk, "gtk-3", 0)) { gtkLoaded = setupGtkBase(lib_gtk); } if (!gtkLoaded && !gtkTriedToInit && loadLibrary(lib_gtk, "gtk-x11-2.0", 0)) { gtkLoaded = setupGtkBase(lib_gtk); } if (gtkLoaded) { LOAD_SYMBOL(lib_gtk, "gdk_pixbuf_new_from_file_at_size", gdk_pixbuf_new_from_file_at_size); LOAD_SYMBOL(lib_gtk, "gdk_pixbuf_get_has_alpha", gdk_pixbuf_get_has_alpha); LOAD_SYMBOL(lib_gtk, "gdk_pixbuf_get_pixels", gdk_pixbuf_get_pixels); LOAD_SYMBOL(lib_gtk, "gdk_pixbuf_get_width", gdk_pixbuf_get_width); LOAD_SYMBOL(lib_gtk, "gdk_pixbuf_get_height", gdk_pixbuf_get_height); LOAD_SYMBOL(lib_gtk, "gdk_pixbuf_get_rowstride", gdk_pixbuf_get_rowstride); internal::GdkHelperLoad(lib_gtk); LOAD_SYMBOL(lib_gtk, "gtk_dialog_get_widget_for_response", gtk_dialog_get_widget_for_response); LOAD_SYMBOL(lib_gtk, "gtk_button_set_label", gtk_button_set_label); LOAD_SYMBOL(lib_gtk, "gtk_button_get_type", gtk_button_get_type); // change the icon theme only if it isn't already set by a platformtheme plugin // if QT_QPA_PLATFORMTHEME=(gtk2|gtk3), then force-apply the icon theme if (((QIcon::themeName() == qstr("hicolor") // QGenericUnixTheme && QIcon::fallbackThemeName() == qstr("hicolor")) || (QIcon::themeName() == qstr("Adwaita") // QGnomeTheme && QIcon::fallbackThemeName() == qstr("gnome"))) || IsGtkIntegrationForced()) { DEBUG_LOG(("Set GTK icon theme")); QIcon::setThemeName(gtkSetting("gtk-icon-theme-name")); QIcon::setFallbackThemeName(gtkSetting("gtk-fallback-icon-theme")); } } else { LOG(("Could not load gtk-3 or gtk-x11-2.0!")); } #endif // !TDESKTOP_DISABLE_GTK_INTEGRATION } } // namespace Libs } // namespace Platform