servo_config::prefs

Struct Preferences

Source 
pub struct Preferences {
Show 157 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_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_clipboardevent_enabled: bool,
    pub dom_composition_event_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_forcetouch_enabled: bool,
    pub dom_fullscreen_test: bool,
    pub dom_gamepad_enabled: bool,
    pub dom_imagebitmap_enabled: bool,
    pub dom_intersection_observer_enabled: bool,
    pub dom_microdata_testing_enabled: bool,
    pub dom_mouse_event_which_enabled: bool,
    pub dom_mutation_observer_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_shadowdom_enabled: bool,
    pub dom_svg_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_trusted_types_enabled: bool,
    pub dom_urlpattern_enabled: bool,
    pub dom_xpath_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 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_max: i64,
    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_parallel_parsing_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 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_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_async_runtime_workers_max: i64,
    pub threadpools_resource_workers_max: i64,
    pub threadpools_webrender_workers_max: i64,
    pub user_agent: 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_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_clipboardevent_enabled: bool§dom_composition_event_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_forcetouch_enabled: bool§dom_fullscreen_test: bool§dom_gamepad_enabled: bool§dom_imagebitmap_enabled: bool§dom_intersection_observer_enabled: bool§dom_microdata_testing_enabled: bool§dom_mouse_event_which_enabled: bool§dom_mutation_observer_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_shadowdom_enabled: bool§dom_svg_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_trusted_types_enabled: bool§dom_urlpattern_enabled: bool

Enable the URLPattern API.

§dom_xpath_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§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_max: i64§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_parallel_parsing_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§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_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_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.

Implementations§

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impl Preferences

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

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

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impl Preferences

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const fn const_default() -> Self

Trait Implementations§

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impl Clone for Preferences

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fn clone(&self) -> Preferences

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Default for Preferences

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for Preferences

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

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for Preferences

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

Serialize this value into the given Serde serializer. Read more

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