desktop: Add gamemode preference GUI

desktop/assets/texts/en-US/common.ftl

@@ -7,4 +7,4 @@ cancel = Cancel
 remove = Remove
 
 enable = Enable
-disable = Disable
+disable = Disable

desktop/assets/texts/en-US/preferences_dialog.ftl

@@ -33,3 +33,11 @@ theme = Theme
 theme-system = System Default
 theme-light = Light
 theme-dark = Dark
+
+# See for context https:/FeralInteractive/gamemode
+gamemode = GameMode
+gamemode-tooltip =
+ GameMode temporarily applies a set of optimizations to your computer and/or Ruffle.
+ Ruffle requests GameMode only when a movie is being played.
+gamemode-default = Default
+gamemode-default-tooltip = GameMode will be enabled only when power preference is set to high.

desktop/src/gui/dialogs/preferences_dialog.rs

@@ -1,3 +1,4 @@
+use crate::cli::GameModePreference;
 use crate::gui::{available_languages, optional_text, text, ThemePreference};
 use crate::log::FilenamePattern;
 use crate::preferences::{storage::StorageBackend, GlobalPreferences};
@@ -19,6 +20,10 @@ pub struct PreferencesDialog {
  power_preference_readonly: bool,
  power_preference_changed: bool,
 
+ gamemode_preference: GameModePreference,
+ gamemode_preference_readonly: bool,
+ gamemode_preference_changed: bool,
+
  language: LanguageIdentifier,
  language_changed: bool,
 
@@ -68,6 +73,10 @@ impl PreferencesDialog {
  power_preference_readonly: preferences.cli.power.is_some(),
  power_preference_changed: false,
 
+ gamemode_preference: preferences.gamemode_preference(),
+ gamemode_preference_readonly: preferences.cli.gamemode.is_some(),
+ gamemode_preference_changed: false,
+
  language: preferences.language(),
  language_changed: false,
 
@@ -114,6 +123,10 @@ impl PreferencesDialog {
  .show(ui, |ui| {
  self.show_graphics_preferences(locale, &locked_text, ui);
 
+ if cfg!(target_os = "linux") {
+ self.show_gamemode_preferences(locale, &locked_text, ui);
+ }
+
  self.show_language_preferences(locale, ui);
 
  self.show_theme_preferences(locale, ui);
@@ -289,6 +302,46 @@ impl PreferencesDialog {
  ui.end_row();
  }
 
+ fn show_gamemode_preferences(
+ &mut self,
+ locale: &LanguageIdentifier,
+ locked_text: &str,
+ ui: &mut Ui,
+ ) {
+ ui.label(text(locale, "gamemode"))
+ .on_hover_text_at_pointer(text(locale, "gamemode-tooltip"));
+ if self.gamemode_preference_readonly {
+ ui.label(gamemode_preference_name(locale, self.gamemode_preference))
+ .on_hover_text(locked_text);
+ } else {
+ let previous = self.gamemode_preference;
+ ComboBox::from_id_salt("gamemode")
+ .selected_text(gamemode_preference_name(locale, self.gamemode_preference))
+ .show_ui(ui, |ui| {
+ let values = [
+ GameModePreference::Default,
+ GameModePreference::On,
+ GameModePreference::Off,
+ ];
+ for value in values {
+ let response = ui.selectable_value(
+ &mut self.gamemode_preference,
+ value,
+ gamemode_preference_name(locale, value),
+ );
+
+ if let Some(tooltip) = gamemode_preference_tooltip(locale, value) {
+ response.on_hover_text_at_pointer(tooltip);
+ }
+ }
+ });
+ if self.gamemode_preference != previous {
+ self.gamemode_preference_changed = true;
+ }
+ }
+ ui.end_row();
+ }
+
  fn show_audio_preferences(&mut self, locale: &LanguageIdentifier, ui: &mut Ui) {
  ui.label(text(locale, "audio-output-device"));
 
@@ -459,6 +512,9 @@ impl PreferencesDialog {
  if self.theme_preference_changed {
  preferences.set_theme_preference(self.theme_preference);
  }
+ if self.gamemode_preference_changed {
+ preferences.set_gamemode_preference(self.gamemode_preference);
+ }
  }) {
  // [NA] TODO: Better error handling... everywhere in desktop, really
  tracing::error!("Could not save preferences: {e}");
@@ -500,6 +556,27 @@ fn theme_preference_name(
  }
 }
 
+fn gamemode_preference_name(
+ locale: &LanguageIdentifier,
+ gamemode_preference: GameModePreference,
+) -> Cow<str> {
+ match gamemode_preference {
+ GameModePreference::Default => text(locale, "gamemode-default"),
+ GameModePreference::On => text(locale, "enable"),
+ GameModePreference::Off => text(locale, "disable"),
+ }
+}
+
+fn gamemode_preference_tooltip(
+ locale: &LanguageIdentifier,
+ gamemode_preference: GameModePreference,
+) -> Option<Cow<str>> {
+ Some(match gamemode_preference {
+ GameModePreference::Default => text(locale, "gamemode-default-tooltip"),
+ _ => return None,
+ })
+}
+
 fn filename_pattern_name(locale: &LanguageIdentifier, pattern: FilenamePattern) -> Cow<str> {
  match pattern {
  FilenamePattern::SingleFile => text(locale, "log-filename-pattern-single-file"),