1 // Copyright 2014 The Chromium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef THIRD_PARTY_BLINK_PUBLIC_COMMON_WEB_PREFERENCES_WEB_PREFERENCES_H_
6 #define THIRD_PARTY_BLINK_PUBLIC_COMMON_WEB_PREFERENCES_WEB_PREFERENCES_H_
12 #include "build/build_config.h"
13 #include "net/nqe/effective_connection_type.h"
14 #include "third_party/blink/public/common/common_export.h"
15 #include "third_party/blink/public/mojom/css/preferred_color_scheme.mojom-shared.h"
16 #include "third_party/blink/public/mojom/css/preferred_contrast.mojom-shared.h"
17 #include "third_party/blink/public/mojom/v8_cache_options.mojom-forward.h"
18 #include "third_party/blink/public/mojom/webpreferences/web_preferences.mojom-shared.h"
20 #include "url/origin.h"
22 #if defined(ENABLE_WRT_JS)
23 #include "base/files/file_path.h"
32 using blink::mojom::EffectiveConnectionType;
34 // Map of ISO 15924 four-letter script code to font family. For example,
35 // "Arab" to "My Arabic Font".
36 typedef std::map<std::string, std::u16string> ScriptFontFamilyMap;
38 // The ISO 15924 script code for undetermined script aka Common. It's the
39 // default used on WebKit's side to get/set a font setting when no script is
41 BLINK_COMMON_EXPORT extern const char kCommonScript[];
43 // A struct for managing blink's settings.
45 // Adding new values to this class probably involves updating
46 // blink::WebSettings,
47 // browser/profiles/profile.cc, and
48 // content/public/common/common_param_traits_macros.h
49 struct BLINK_COMMON_EXPORT WebPreferences {
50 ScriptFontFamilyMap standard_font_family_map;
51 ScriptFontFamilyMap fixed_font_family_map;
52 ScriptFontFamilyMap serif_font_family_map;
53 ScriptFontFamilyMap sans_serif_font_family_map;
54 ScriptFontFamilyMap cursive_font_family_map;
55 ScriptFontFamilyMap fantasy_font_family_map;
56 ScriptFontFamilyMap math_font_family_map;
57 int default_font_size;
58 int default_fixed_font_size;
59 int minimum_font_size;
60 int minimum_logical_font_size;
61 std::string default_encoding;
62 bool context_menu_on_mouse_up;
63 bool javascript_enabled;
64 bool web_security_enabled;
65 bool loads_images_automatically;
68 bool dom_paste_enabled;
69 bool shrinks_standalone_images_to_fit;
70 bool text_areas_are_resizable;
71 bool allow_scripts_to_close_windows;
72 bool remote_fonts_enabled;
73 bool javascript_can_access_clipboard;
74 // We don't use dns_prefetching_enabled to disable DNS prefetching. Instead,
75 // we disable the feature at a lower layer so that we catch non-WebKit uses
76 // of DNS prefetch as well.
77 bool dns_prefetching_enabled;
78 // Preference to save data. When enabled, requests will contain the header
80 bool data_saver_enabled;
81 bool local_storage_enabled;
82 bool databases_enabled;
84 bool disable_ipc_flooding_protection;
85 bool hyperlink_auditing_enabled;
86 bool allow_universal_access_from_file_urls;
87 bool allow_file_access_from_file_urls;
90 bool pepper_3d_enabled;
91 bool privileged_webgl_extensions_enabled;
92 bool webgl_errors_to_console_enabled;
94 // If false, ignore ::-webkit-scrollbar-* CSS pseudo-elements in stylesheets.
95 bool enable_webkit_scrollbar_styling = true;
96 bool accelerated_2d_canvas_enabled;
97 bool canvas_2d_layers_enabled = false;
98 bool antialiased_2d_canvas_disabled;
99 bool antialiased_clips_2d_canvas_enabled;
100 bool accelerated_filters_enabled;
101 bool deferred_filters_enabled;
102 bool container_culling_enabled;
103 bool allow_running_insecure_content;
104 // If true, taints all <canvas> elements, regardless of origin.
105 bool disable_reading_from_canvas;
106 // Strict mixed content checking disables both displaying and running insecure
107 // mixed content, and disables embedder notifications that such content was
108 // requested (thereby preventing user override).
109 bool strict_mixed_content_checking;
110 // Strict powerful feature restrictions block insecure usage of powerful
111 // features (like device orientation) that we haven't yet disabled for the web
113 bool strict_powerful_feature_restrictions;
114 // TODO(jww): Remove when WebView no longer needs this exception.
115 bool allow_geolocation_on_insecure_origins;
116 // Disallow user opt-in for blockable mixed content.
117 bool strictly_block_blockable_mixed_content;
118 bool block_mixed_plugin_content;
119 bool password_echo_enabled;
120 bool should_print_backgrounds;
121 bool should_clear_document_background;
122 bool enable_scroll_animator;
123 bool threaded_scrolling_enabled;
124 bool prefers_reduced_motion;
125 bool touch_event_feature_detection_enabled;
126 int pointer_events_max_touch_points;
127 int available_pointer_types;
128 blink::mojom::PointerType primary_pointer_type;
129 int available_hover_types;
130 blink::mojom::HoverType primary_hover_type;
131 bool dont_send_key_events_to_javascript;
132 bool barrel_button_for_drag_enabled = false;
133 bool sync_xhr_in_documents_enabled;
134 // TODO(https://crbug.com/1163644): Remove once Chrome Apps are deprecated.
135 bool target_blank_implies_no_opener_enabled_will_be_removed = true;
136 // TODO(https://crbug.com/1172495): Remove once Chrome Apps are deprecated.
137 bool allow_non_empty_navigator_plugins = false;
138 int number_of_cpu_cores;
139 blink::mojom::EditingBehavior editing_behavior;
140 bool supports_multiple_windows;
141 bool viewport_enabled;
142 bool viewport_meta_enabled;
143 bool auto_zoom_focused_editable_to_legible_scale;
145 // If true - Blink will clamp the minimum scale factor to the content width,
146 // preventing zoom beyond the visible content. This is really only needed if
147 // viewport_enabled is on.
148 bool shrinks_viewport_contents_to_fit;
150 blink::mojom::ViewportStyle viewport_style;
151 bool always_show_context_menu_on_touch;
152 bool smooth_scroll_for_find_enabled;
153 bool main_frame_resizes_are_orientation_changes;
154 bool initialize_at_minimum_page_scale;
155 bool smart_insert_delete_enabled;
156 bool spatial_navigation_enabled;
157 bool navigate_on_drag_drop;
158 bool fake_no_alloc_direct_call_for_testing_enabled;
159 blink::mojom::V8CacheOptions v8_cache_options;
160 bool record_whole_document;
162 // If true, stylus handwriting recognition to text input will be available in
163 // editable input fields which are non-password type.
164 bool stylus_handwriting_enabled;
166 #if defined(ENABLE_WRT_JS)
167 // Begin Electron-specific WebPreferences.
168 bool context_isolation;
172 bool node_integration;
173 bool node_integration_in_worker;
174 bool node_integration_in_sub_frames;
175 bool enable_spellcheck;
179 // End Electron-specific WebPreferences.
182 // This flags corresponds to a Page's Settings' setCookieEnabled state. It
183 // only controls whether or not the "document.cookie" field is properly
184 // connected to the backing store, for instance if you wanted to be able to
185 // define custom getters and setters from within a unique security content
186 // without raising a DOM security exception.
189 // This flag indicates whether H/W accelerated video decode is enabled.
190 // Defaults to false.
191 bool accelerated_video_decode_enabled;
193 #if defined(TIZEN_VIDEO_HOLE)
194 bool video_hole_enabled = false;
197 blink::mojom::ImageAnimationPolicy animation_policy =
198 blink::mojom::ImageAnimationPolicy::kImageAnimationPolicyAllowed;
200 bool user_gesture_required_for_presentation;
202 bool text_tracks_enabled;
204 // These fields specify the foreground and background color for WebVTT text
205 // tracks. Their values can be any legal CSS color descriptor.
206 std::string text_track_background_color;
207 std::string text_track_text_color;
209 // These fields specify values for CSS properties used to style WebVTT text
211 // Specifies CSS font-size property in percentage.
212 std::string text_track_text_size;
213 std::string text_track_text_shadow;
214 std::string text_track_font_family;
215 std::string text_track_font_style;
216 // Specifies the value for CSS font-variant property.
217 std::string text_track_font_variant;
219 // These fields specify values for CSS properties used to style the window
220 // around WebVTT text tracks.
221 // Window color can be any legal CSS color descriptor.
222 std::string text_track_window_color;
223 // Window radius is in pixels.
224 std::string text_track_window_radius;
226 // Specifies the margin for WebVTT text tracks as a percentage of media
227 // element height/width (for horizontal/vertical text respectively).
228 // Cues will not be placed in this margin area.
229 float text_track_margin_percentage;
231 bool immersive_mode_enabled;
233 #if BUILDFLAG(IS_EFL)
234 float font_scale_factor;
235 bool link_effect_enabled = false;
237 bool force_enable_zoom = false;
238 bool text_zoom_enabled = false;
239 bool selection_magnifier_enabled = false;
240 bool long_press_enabled = false;
241 bool uses_encoding_detector = true;
244 bool double_tap_to_zoom_enabled;
246 bool fullscreen_supported;
248 bool text_autosizing_enabled;
250 // Representation of the Web App Manifest scope if any.
253 #if BUILDFLAG(IS_ANDROID)
254 float font_scale_factor;
255 float device_scale_adjustment;
256 bool force_enable_zoom;
257 GURL default_video_poster_url;
258 bool support_deprecated_target_density_dpi;
259 bool use_legacy_background_size_shorthand_behavior;
260 bool wide_viewport_quirk;
261 bool use_wide_viewport;
262 bool force_zero_layout_height;
263 bool viewport_meta_merge_content_quirk;
264 bool viewport_meta_non_user_scalable_quirk;
265 bool viewport_meta_zero_values_quirk;
266 bool clobber_user_agent_initial_scale_quirk;
267 bool ignore_main_frame_overflow_hidden_quirk;
268 bool report_screen_size_in_physical_pixels_quirk;
269 // Used by Android_WebView only to support legacy apps that inject script into
270 // a top-level initial empty document and expect it to persist on navigation.
271 bool reuse_global_for_unowned_main_frame;
272 // Specifies default setting for spellcheck when the spellcheck attribute is
273 // not explicitly specified.
274 bool spellcheck_enabled_by_default;
275 // If enabled, when a video goes fullscreen, the orientation should be locked.
276 bool video_fullscreen_orientation_lock_enabled;
277 // If enabled, fullscreen should be entered/exited when the device is rotated
278 // to/from the orientation of the video.
279 bool video_rotate_to_fullscreen_enabled;
280 bool embedded_media_experience_enabled;
281 // Enable 8 (#RRGGBBAA) and 4 (#RGBA) value hex colors in CSS Android
282 // WebView quirk (http://crbug.com/618472).
283 bool css_hex_alpha_color_enabled;
284 // Enable support for document.scrollingElement
285 // WebView sets this to false to retain old documentElement behaviour
286 // (http://crbug.com/761016).
287 bool scroll_top_left_interop_enabled;
289 // Don't accelerate small canvases to avoid crashes TODO(crbug.com/1004304)
290 bool disable_accelerated_small_canvases;
291 // Disable the Web Authentication API.
292 bool disable_webauthn = false;
293 #endif // BUILDFLAG(IS_ANDROID)
295 // Enable forcibly modifying content rendering to result in a light on dark
297 bool force_dark_mode_enabled = false;
299 // Default (used if the page or UA doesn't override these) values for page
300 // scale limits. These are set directly on the WebView so there's no analogue
302 float default_minimum_page_scale_factor;
303 float default_maximum_page_scale_factor;
305 #if BUILDFLAG(IS_EFL)
306 bool TizenCompatibilityModeEnabled() const {
307 return (tizen_version_major && tizen_version_major < 3);
309 unsigned tizen_version_major = 7;
310 unsigned tizen_version_minor = 5;
311 unsigned tizen_version_release = 0;
314 // Whether download UI should be hidden on this page.
315 bool hide_download_ui;
317 // Whether it is a presentation receiver.
318 bool presentation_receiver;
320 // If disabled, media controls should never be used.
321 bool media_controls_enabled;
323 // Whether we want to disable updating selection on mutating selection range.
324 // This is to work around Samsung's email app issue. See
325 // https://crbug.com/699943 for details.
326 // TODO(changwan): remove this once we no longer support Android N.
327 bool do_not_update_selection_on_mutating_selection_range;
329 #if BUILDFLAG(IS_TIZEN)
330 int max_refresh_rate;
333 // Defines the current autoplay policy.
334 blink::mojom::AutoplayPolicy autoplay_policy =
335 blink::mojom::AutoplayPolicy::kNoUserGestureRequired;
337 // The preferred color scheme for the web content. The scheme is used to
338 // evaluate the prefers-color-scheme media query and resolve UA color scheme
339 // to be used based on the supported-color-schemes META tag and CSS property.
340 blink::mojom::PreferredColorScheme preferred_color_scheme =
341 blink::mojom::PreferredColorScheme::kLight;
343 // The preferred contrast for the web content. The contrast is used to
344 // evaluate the prefers-contrast media query.
345 blink::mojom::PreferredContrast preferred_contrast =
346 blink::mojom::PreferredContrast::kNoPreference;
348 // Network quality threshold below which resources from iframes are assigned
349 // either kVeryLow or kVeryLow Blink priority.
350 EffectiveConnectionType low_priority_iframes_threshold;
352 // Whether Picture-in-Picture is enabled.
353 bool picture_in_picture_enabled;
355 // Whether a translate service is available.
356 // blink's hrefTranslate attribute existence relies on the result.
357 // See https://github.com/dtapuska/html-translate
358 bool translate_service_available;
360 // A value other than
361 // mojom::EffectiveConnectionType::kEffectiveConnectionUnknownType implies
362 // that the network quality estimate related Web APIs are in the holdback
363 // mode. When the holdback is enabled, the related Web APIs return network
364 // quality estimate corresponding to |network_quality_estimator_web_holdback|
365 // regardless of the actual quality.
366 EffectiveConnectionType network_quality_estimator_web_holdback;
368 // Whether lazy loading of frames and images is enabled.
369 bool lazy_load_enabled = true;
371 // Specifies how close a lazily loaded iframe or image should be from the
372 // viewport before it should start being loaded in, depending on the effective
373 // connection type of the current network. Blink will use the default distance
374 // threshold for effective connection types that aren't specified here.
375 std::map<EffectiveConnectionType, int>
376 lazy_frame_loading_distance_thresholds_px;
377 std::map<EffectiveConnectionType, int>
378 lazy_image_loading_distance_thresholds_px;
379 std::map<EffectiveConnectionType, int> lazy_image_first_k_fully_load;
381 // Setting to false disables upgrades to HTTPS for HTTP resources in HTTPS
383 bool allow_mixed_content_upgrades;
385 // Whether the focused element should always be indicated (for example, by
386 // forcing :focus-visible to match regardless of focus method).
387 bool always_show_focus;
389 // Whether touch input can trigger HTML drag-and-drop operations. The
390 // default value depends on the platform.
391 bool touch_drag_drop_enabled;
393 // Whether the end of a drag fires a contextmenu event and possibly shows a
394 // context-menu (depends on how the event is handled). Currently touch-drags
395 // cannot show context menus, see crbug.com/1096189.
396 bool touch_dragend_context_menu = false;
398 // By default, WebXR's immersive-ar session creation is allowed, but this can
399 // change depending on the enterprise policy if the platform supports it.
400 bool webxr_immersive_ar_allowed = true;
402 // Whether lookup of frames in the associated WebView (e.g. lookup via
403 // window.open or via <a target=...>) should be renderer-wide (i.e. going
404 // beyond the usual opener-relationship-based BrowsingInstance boundaries).
405 bool renderer_wide_named_frame_lookup = false;
407 // Whether MIME type checking for worker scripts is strict (true) or lax
408 // (false). Used by StrictMimetypeCheckForWorkerScriptsEnabled policy.
409 bool strict_mime_type_check_for_worker_scripts_enabled = true;
411 // We try to keep the default values the same as the default values in
412 // chrome, except for the cases where it would require lots of extra work for
413 // the embedder to use the same default value.
415 WebPreferences(const WebPreferences& other);
416 WebPreferences(WebPreferences&& other);
418 WebPreferences& operator=(const WebPreferences& other);
419 WebPreferences& operator=(WebPreferences&& other);
422 } // namespace web_pref
426 #endif // THIRD_PARTY_BLINK_PUBLIC_COMMON_WEB_PREFERENCES_WEB_PREFERENCES_H_