Struct Preferences

Source

pub struct Preferences {Show 162 fields
    pub fonts_default: String,
    pub fonts_serif: String,
    pub fonts_sans_serif: String,
    pub fonts_monospace: String,
    pub fonts_default_size: i64,
    pub fonts_default_monospace_size: i64,
    pub css_animations_testing_enabled: bool,
    pub devtools_server_enabled: bool,
    pub devtools_server_port: i64,
    pub dom_webgpu_enabled: bool,
    pub dom_webgpu_wgpu_backend: String,
    pub dom_abort_controller_enabled: bool,
    pub dom_adoptedstylesheet_enabled: bool,
    pub dom_async_clipboard_enabled: bool,
    pub dom_bluetooth_enabled: bool,
    pub dom_bluetooth_testing_enabled: bool,
    pub dom_allow_scripts_to_close_windows: bool,
    pub dom_canvas_capture_enabled: bool,
    pub dom_canvas_text_enabled: bool,
    pub dom_canvas_backend: String,
    pub dom_clipboardevent_enabled: bool,
    pub dom_composition_event_enabled: bool,
    pub dom_cookiestore_enabled: bool,
    pub dom_credential_management_enabled: bool,
    pub dom_crypto_subtle_enabled: bool,
    pub dom_customelements_enabled: bool,
    pub dom_document_dblclick_timeout: i64,
    pub dom_document_dblclick_dist: i64,
    pub dom_fontface_enabled: bool,
    pub dom_fullscreen_test: bool,
    pub dom_gamepad_enabled: bool,
    pub dom_geolocation_enabled: bool,
    pub dom_indexeddb_enabled: bool,
    pub dom_intersection_observer_enabled: bool,
    pub dom_microdata_testing_enabled: bool,
    pub dom_uievent_which_enabled: bool,
    pub dom_mutation_observer_enabled: bool,
    pub dom_navigator_sendbeacon_enabled: bool,
    pub dom_notification_enabled: bool,
    pub dom_offscreen_canvas_enabled: bool,
    pub dom_permissions_enabled: bool,
    pub dom_permissions_testing_allowed_in_nonsecure_contexts: bool,
    pub dom_resize_observer_enabled: bool,
    pub dom_script_asynch: bool,
    pub dom_serviceworker_enabled: bool,
    pub dom_serviceworker_timeout_seconds: i64,
    pub dom_servo_helpers_enabled: bool,
    pub dom_servoparser_async_html_tokenizer_enabled: bool,
    pub dom_testable_crash_enabled: bool,
    pub dom_testbinding_enabled: bool,
    pub dom_testbinding_prefcontrolled_enabled: bool,
    pub dom_testbinding_prefcontrolled2_enabled: bool,
    pub dom_testbinding_preference_value_falsy: bool,
    pub dom_testbinding_preference_value_quote_string_test: String,
    pub dom_testbinding_preference_value_space_string_test: String,
    pub dom_testbinding_preference_value_string_empty: String,
    pub dom_testbinding_preference_value_string_test: String,
    pub dom_testbinding_preference_value_truthy: bool,
    pub dom_testing_element_activation_enabled: bool,
    pub dom_testing_html_input_element_select_files_enabled: bool,
    pub dom_testperf_enabled: bool,
    pub dom_testutils_enabled: bool,
    pub dom_webgl2_enabled: bool,
    pub dom_webrtc_enabled: bool,
    pub dom_webrtc_transceiver_enabled: bool,
    pub dom_webvtt_enabled: bool,
    pub dom_webxr_enabled: bool,
    pub dom_webxr_test: bool,
    pub dom_webxr_first_person_observer_view: bool,
    pub dom_webxr_glwindow_enabled: bool,
    pub dom_webxr_glwindow_left_right: bool,
    pub dom_webxr_glwindow_red_cyan: bool,
    pub dom_webxr_glwindow_spherical: bool,
    pub dom_webxr_glwindow_cubemap: bool,
    pub dom_webxr_hands_enabled: bool,
    pub dom_webxr_layers_enabled: bool,
    pub dom_webxr_openxr_enabled: bool,
    pub dom_webxr_sessionavailable: bool,
    pub dom_webxr_unsafe_assume_user_intent: bool,
    pub dom_worklet_enabled: bool,
    pub dom_worklet_blockingsleep: bool,
    pub dom_worklet_testing_enabled: bool,
    pub dom_worklet_timeout_ms: i64,
    pub gfx_precache_shaders: bool,
    pub gfx_text_antialiasing_enabled: bool,
    pub gfx_subpixel_text_antialiasing_enabled: bool,
    pub gfx_texture_swizzling_enabled: bool,
    pub image_key_batch_size: i64,
    pub inspector_show_servo_internal_shadow_roots: bool,
    pub js_asmjs_enabled: bool,
    pub js_asyncstack: bool,
    pub js_baseline_interpreter_enabled: bool,
    pub js_disable_jit: bool,
    pub js_baseline_jit_enabled: bool,
    pub js_baseline_jit_unsafe_eager_compilation_enabled: bool,
    pub js_discard_system_source: bool,
    pub js_dump_stack_on_debuggee_would_run: bool,
    pub js_ion_enabled: bool,
    pub js_ion_offthread_compilation_enabled: bool,
    pub js_ion_unsafe_eager_compilation_enabled: bool,
    pub js_mem_gc_allocation_threshold_mb: i64,
    pub js_mem_gc_allocation_threshold_factor: i64,
    pub js_mem_gc_allocation_threshold_avoid_interrupt_factor: i64,
    pub js_mem_gc_compacting_enabled: bool,
    pub js_mem_gc_decommit_threshold_mb: i64,
    pub js_mem_gc_dynamic_heap_growth_enabled: bool,
    pub js_mem_gc_dynamic_mark_slice_enabled: bool,
    pub js_mem_gc_empty_chunk_count_min: i64,
    pub js_mem_gc_high_frequency_heap_growth_max: i64,
    pub js_mem_gc_high_frequency_heap_growth_min: i64,
    pub js_mem_gc_high_frequency_high_limit_mb: i64,
    pub js_mem_gc_high_frequency_low_limit_mb: i64,
    pub js_mem_gc_high_frequency_time_limit_ms: i64,
    pub js_mem_gc_incremental_enabled: bool,
    pub js_mem_gc_incremental_slice_ms: i64,
    pub js_mem_gc_low_frequency_heap_growth: i64,
    pub js_mem_gc_per_zone_enabled: bool,
    pub js_mem_gc_zeal_frequency: i64,
    pub js_mem_gc_zeal_level: i64,
    pub js_mem_max: i64,
    pub js_native_regex_enabled: bool,
    pub js_offthread_compilation_enabled: bool,
    pub js_shared_memory: bool,
    pub js_throw_on_asmjs_validation_failure: bool,
    pub js_throw_on_debuggee_would_run: bool,
    pub js_timers_minimum_duration: i64,
    pub js_wasm_baseline_enabled: bool,
    pub js_wasm_enabled: bool,
    pub js_wasm_ion_enabled: bool,
    pub js_werror_enabled: bool,
    pub largest_contentful_paint_enabled: bool,
    pub layout_animations_test_enabled: bool,
    pub layout_columns_enabled: bool,
    pub layout_grid_enabled: bool,
    pub layout_container_queries_enabled: bool,
    pub layout_css_transition_behavior_enabled: bool,
    pub layout_flexbox_enabled: bool,
    pub layout_threads: i64,
    pub layout_unimplemented: bool,
    pub layout_variable_fonts_enabled: bool,
    pub layout_writing_mode_enabled: bool,
    pub media_glvideo_enabled: bool,
    pub media_testing_enabled: bool,
    pub network_enforce_tls_enabled: bool,
    pub network_enforce_tls_localhost: bool,
    pub network_enforce_tls_onion: bool,
    pub network_http_cache_disabled: bool,
    pub network_local_directory_listing_enabled: bool,
    pub network_mime_sniff: bool,
    pub session_history_max_length: i64,
    pub shell_background_color_rgba: [f64; 4],
    pub webgl_testing_context_creation_error: bool,
    pub threadpools_fallback_worker_num: i64,
    pub threadpools_image_cache_workers_max: i64,
    pub threadpools_indexeddb_workers_max: i64,
    pub threadpools_webstorage_workers_max: i64,
    pub threadpools_async_runtime_workers_max: i64,
    pub threadpools_resource_workers_max: i64,
    pub threadpools_webrender_workers_max: i64,
    pub user_agent: String,
    pub viewport_meta_enabled: bool,
    pub log_filter: String,
}

Fields§

§fonts_default: String§fonts_serif: String§fonts_sans_serif: String§fonts_monospace: String§fonts_default_size: i64§fonts_default_monospace_size: i64§css_animations_testing_enabled: bool§devtools_server_enabled: bool

Start the devtools server at startup

§devtools_server_port: i64

Port number to start a server to listen to remote Firefox devtools connections. 0 for random port.

§dom_webgpu_enabled: bool§dom_webgpu_wgpu_backend: String

List of comma-separated backends to be used by wgpu.

§dom_abort_controller_enabled: bool§dom_adoptedstylesheet_enabled: bool§dom_async_clipboard_enabled: bool§dom_bluetooth_enabled: bool§dom_bluetooth_testing_enabled: bool§dom_allow_scripts_to_close_windows: bool§dom_canvas_capture_enabled: bool§dom_canvas_text_enabled: bool§dom_canvas_backend: String

Selects canvas backend

Available values:

/auto
vello
vello_cpu

§dom_clipboardevent_enabled: bool§dom_composition_event_enabled: bool§dom_cookiestore_enabled: bool§dom_credential_management_enabled: bool§dom_crypto_subtle_enabled: bool§dom_customelements_enabled: bool§dom_document_dblclick_timeout: i64§dom_document_dblclick_dist: i64§dom_fontface_enabled: bool§dom_fullscreen_test: bool§dom_gamepad_enabled: bool§dom_geolocation_enabled: bool§dom_indexeddb_enabled: bool§dom_intersection_observer_enabled: bool§dom_microdata_testing_enabled: bool§dom_uievent_which_enabled: bool§dom_mutation_observer_enabled: bool§dom_navigator_sendbeacon_enabled: bool§dom_notification_enabled: bool§dom_offscreen_canvas_enabled: bool§dom_permissions_enabled: bool§dom_permissions_testing_allowed_in_nonsecure_contexts: bool§dom_resize_observer_enabled: bool§dom_script_asynch: bool§dom_serviceworker_enabled: bool§dom_serviceworker_timeout_seconds: i64§dom_servo_helpers_enabled: bool§dom_servoparser_async_html_tokenizer_enabled: bool§dom_testable_crash_enabled: bool§dom_testbinding_enabled: bool§dom_testbinding_prefcontrolled_enabled: bool§dom_testbinding_prefcontrolled2_enabled: bool§dom_testbinding_preference_value_falsy: bool§dom_testbinding_preference_value_quote_string_test: String§dom_testbinding_preference_value_space_string_test: String§dom_testbinding_preference_value_string_empty: String§dom_testbinding_preference_value_string_test: String§dom_testbinding_preference_value_truthy: bool§dom_testing_element_activation_enabled: bool§dom_testing_html_input_element_select_files_enabled: bool§dom_testperf_enabled: bool§dom_testutils_enabled: bool§dom_webgl2_enabled: bool

Enable WebGL2 APIs.

§dom_webrtc_enabled: bool§dom_webrtc_transceiver_enabled: bool§dom_webvtt_enabled: bool§dom_webxr_enabled: bool§dom_webxr_test: bool§dom_webxr_first_person_observer_view: bool§dom_webxr_glwindow_enabled: bool§dom_webxr_glwindow_left_right: bool§dom_webxr_glwindow_red_cyan: bool§dom_webxr_glwindow_spherical: bool§dom_webxr_glwindow_cubemap: bool§dom_webxr_hands_enabled: bool§dom_webxr_layers_enabled: bool§dom_webxr_openxr_enabled: bool§dom_webxr_sessionavailable: bool§dom_webxr_unsafe_assume_user_intent: bool§dom_worklet_enabled: bool§dom_worklet_blockingsleep: bool§dom_worklet_testing_enabled: bool§dom_worklet_timeout_ms: i64§gfx_precache_shaders: bool

True to compile all WebRender shaders when Servo initializes. This is mostly useful when modifying the shaders, to ensure they all compile after each change is made.

§gfx_text_antialiasing_enabled: bool

Whether or not antialiasing is enabled for text rendering.

§gfx_subpixel_text_antialiasing_enabled: bool

Whether or not subpixel antialiasing is enabled for text rendering.

§gfx_texture_swizzling_enabled: bool§image_key_batch_size: i64

The amount of image keys we request per batch for the image cache.

§inspector_show_servo_internal_shadow_roots: bool

Whether or not the DOM inspector should show shadow roots of user-agent shadow trees

§js_asmjs_enabled: bool§js_asyncstack: bool§js_baseline_interpreter_enabled: bool§js_disable_jit: bool

Whether to disable the jit within SpiderMonkey

§js_baseline_jit_enabled: bool§js_baseline_jit_unsafe_eager_compilation_enabled: bool§js_discard_system_source: bool§js_dump_stack_on_debuggee_would_run: bool§js_ion_enabled: bool§js_ion_offthread_compilation_enabled: bool§js_ion_unsafe_eager_compilation_enabled: bool§js_mem_gc_allocation_threshold_mb: i64§js_mem_gc_allocation_threshold_factor: i64§js_mem_gc_allocation_threshold_avoid_interrupt_factor: i64§js_mem_gc_compacting_enabled: bool§js_mem_gc_decommit_threshold_mb: i64§js_mem_gc_dynamic_heap_growth_enabled: bool§js_mem_gc_dynamic_mark_slice_enabled: bool§js_mem_gc_empty_chunk_count_min: i64§js_mem_gc_high_frequency_heap_growth_max: i64§js_mem_gc_high_frequency_heap_growth_min: i64§js_mem_gc_high_frequency_high_limit_mb: i64§js_mem_gc_high_frequency_low_limit_mb: i64§js_mem_gc_high_frequency_time_limit_ms: i64§js_mem_gc_incremental_enabled: bool§js_mem_gc_incremental_slice_ms: i64§js_mem_gc_low_frequency_heap_growth: i64§js_mem_gc_per_zone_enabled: bool§js_mem_gc_zeal_frequency: i64§js_mem_gc_zeal_level: i64§js_mem_max: i64§js_native_regex_enabled: bool§js_offthread_compilation_enabled: bool§js_shared_memory: bool§js_throw_on_asmjs_validation_failure: bool§js_throw_on_debuggee_would_run: bool§js_timers_minimum_duration: i64§js_wasm_baseline_enabled: bool§js_wasm_enabled: bool§js_wasm_ion_enabled: bool§js_werror_enabled: bool§largest_contentful_paint_enabled: bool§layout_animations_test_enabled: bool§layout_columns_enabled: bool§layout_grid_enabled: bool§layout_container_queries_enabled: bool§layout_css_transition_behavior_enabled: bool§layout_flexbox_enabled: bool§layout_threads: i64§layout_unimplemented: bool§layout_variable_fonts_enabled: bool§layout_writing_mode_enabled: bool§media_glvideo_enabled: bool

Enable hardware acceleration for video playback.

§media_testing_enabled: bool

Enable a non-standard event handler for verifying behavior of media elements during tests.

§network_enforce_tls_enabled: bool§network_enforce_tls_localhost: bool§network_enforce_tls_onion: bool§network_http_cache_disabled: bool§network_local_directory_listing_enabled: bool§network_mime_sniff: bool§session_history_max_length: i64§shell_background_color_rgba: [f64; 4]

The background color of shell’s viewport. This will be used by OpenGL’s glClearColor.

§webgl_testing_context_creation_error: bool§threadpools_fallback_worker_num: i64

Number of workers per threadpool, if we fail to detect how much parallelism is available at runtime.

§threadpools_image_cache_workers_max: i64

Maximum number of workers for the Image Cache thread pool

§threadpools_indexeddb_workers_max: i64

Maximum number of workers for the IndexedDB thread pool

§threadpools_webstorage_workers_max: i64

Maximum number of workers for the Web Storage thread pool

§threadpools_async_runtime_workers_max: i64

Maximum number of workers for the Networking async runtime thread pool

§threadpools_resource_workers_max: i64

Maximum number of workers for the Core Resource Manager

§threadpools_webrender_workers_max: i64

Maximum number of workers for webrender

§user_agent: String

The user-agent to use for Servo. This can also be set via UserAgentPlatform in order to set the value to the default value for the given platform.

§viewport_meta_enabled: bool

Whether or not the viewport meta tag is enabled.

§log_filter: String

Struct Preferences Copy item path

Fields§

Implementations§

impl Preferences

pub fn get_value(&self, name: &str) -> PrefValue

pub fn set_value(&mut self, name: &str, value: PrefValue)

pub fn diff(&self, other: &Self) -> Vec<(&'static str, PrefValue)>

impl Preferences

const fn const_default() -> Self

Trait Implementations§

impl Clone for Preferences

fn clone(&self) -> Preferences

fn clone_from(&mut self, source: &Self)

impl Default for Preferences

fn default() -> Self

impl<'de> Deserialize<'de> for Preferences

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

impl Serialize for Preferences

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Auto Trait Implementations§

impl Freeze for Preferences

impl RefUnwindSafe for Preferences

impl Send for Preferences

impl Sync for Preferences

impl Unpin for Preferences

impl UnwindSafe for Preferences

Blanket Implementations§

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> CloneToUninit for Twhere T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>where F: FnOnce(&Self) -> bool,

impl<T> MaybeBoxed<Box<T>> for T

fn maybe_boxed(self) -> Box<T>

impl<T> MaybeBoxed<T> for T

fn maybe_boxed(self) -> T

impl<T> Pointable for T

const ALIGN: usize

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T> Same for T

type Output = T

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<T> DeserializeOwned for Twhere T: for<'de> Deserialize<'de>,

impl<T> ErasedDestructor for Twhere T: 'static,

impl<T> MaybeSendSync for T

Struct Preferences

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where __D: Deserializer<'de>,

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer,

impl<T> Any for T
where T: 'static + ?Sized,

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

impl<T> CloneToUninit for T
where T: Clone,

impl<T, U> Into<U> for T
where U: From<T>,

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

impl<T> ToOwned for T
where T: Clone,

impl<T, U> TryFrom<U> for T
where U: Into<T>,

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

impl<T> ErasedDestructor for T
where T: 'static,