1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "content/public/renderer/web_preferences.h"
7 #include "base/strings/utf_string_conversions.h"
8 #include "third_party/WebKit/public/platform/WebString.h"
9 #include "third_party/WebKit/public/platform/WebURL.h"
10 #include "third_party/WebKit/public/web/WebKit.h"
11 #include "third_party/WebKit/public/web/WebNetworkStateNotifier.h"
12 #include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
13 #include "third_party/WebKit/public/web/WebSettings.h"
14 #include "third_party/WebKit/public/web/WebView.h"
15 #include "third_party/icu/source/common/unicode/uchar.h"
16 #include "third_party/icu/source/common/unicode/uscript.h"
17 #include "webkit/common/webpreferences.h"
19 using WebKit::WebNetworkStateNotifier;
20 using WebKit::WebRuntimeFeatures;
21 using WebKit::WebSettings;
22 using WebKit::WebString;
24 using WebKit::WebView;
30 typedef void (*SetFontFamilyWrapper)(WebKit::WebSettings*,
31 const base::string16&,
34 void setStandardFontFamilyWrapper(WebSettings* settings,
35 const base::string16& font,
37 settings->setStandardFontFamily(font, script);
40 void setFixedFontFamilyWrapper(WebSettings* settings,
41 const base::string16& font,
43 settings->setFixedFontFamily(font, script);
46 void setSerifFontFamilyWrapper(WebSettings* settings,
47 const base::string16& font,
49 settings->setSerifFontFamily(font, script);
52 void setSansSerifFontFamilyWrapper(WebSettings* settings,
53 const base::string16& font,
55 settings->setSansSerifFontFamily(font, script);
58 void setCursiveFontFamilyWrapper(WebSettings* settings,
59 const base::string16& font,
61 settings->setCursiveFontFamily(font, script);
64 void setFantasyFontFamilyWrapper(WebSettings* settings,
65 const base::string16& font,
67 settings->setFantasyFontFamily(font, script);
70 void setPictographFontFamilyWrapper(WebSettings* settings,
71 const base::string16& font,
73 settings->setPictographFontFamily(font, script);
76 // If |scriptCode| is a member of a family of "similar" script codes, returns
77 // the script code in that family that is used by WebKit for font selection
78 // purposes. For example, USCRIPT_KATAKANA_OR_HIRAGANA and USCRIPT_JAPANESE are
79 // considered equivalent for the purposes of font selection. WebKit uses the
80 // script code USCRIPT_KATAKANA_OR_HIRAGANA. So, if |scriptCode| is
81 // USCRIPT_JAPANESE, the function returns USCRIPT_KATAKANA_OR_HIRAGANA. WebKit
82 // uses different scripts than the ones in Chrome pref names because the version
83 // of ICU included on certain ports does not have some of the newer scripts. If
84 // |scriptCode| is not a member of such a family, returns |scriptCode|.
85 UScriptCode GetScriptForWebSettings(UScriptCode scriptCode) {
87 case USCRIPT_HIRAGANA:
88 case USCRIPT_KATAKANA:
89 case USCRIPT_JAPANESE:
90 return USCRIPT_KATAKANA_OR_HIRAGANA;
92 return USCRIPT_HANGUL;
98 void ApplyFontsFromMap(const webkit_glue::ScriptFontFamilyMap& map,
99 SetFontFamilyWrapper setter,
100 WebSettings* settings) {
101 for (webkit_glue::ScriptFontFamilyMap::const_iterator it = map.begin();
104 int32 script = u_getPropertyValueEnum(UCHAR_SCRIPT, (it->first).c_str());
105 if (script >= 0 && script < USCRIPT_CODE_LIMIT) {
106 UScriptCode code = static_cast<UScriptCode>(script);
107 (*setter)(settings, it->second, GetScriptForWebSettings(code));
114 void ApplyWebPreferences(const WebPreferences& prefs, WebView* web_view) {
115 WebSettings* settings = web_view->settings();
116 ApplyFontsFromMap(prefs.standard_font_family_map,
117 setStandardFontFamilyWrapper, settings);
118 ApplyFontsFromMap(prefs.fixed_font_family_map,
119 setFixedFontFamilyWrapper, settings);
120 ApplyFontsFromMap(prefs.serif_font_family_map,
121 setSerifFontFamilyWrapper, settings);
122 ApplyFontsFromMap(prefs.sans_serif_font_family_map,
123 setSansSerifFontFamilyWrapper, settings);
124 ApplyFontsFromMap(prefs.cursive_font_family_map,
125 setCursiveFontFamilyWrapper, settings);
126 ApplyFontsFromMap(prefs.fantasy_font_family_map,
127 setFantasyFontFamilyWrapper, settings);
128 ApplyFontsFromMap(prefs.pictograph_font_family_map,
129 setPictographFontFamilyWrapper, settings);
130 settings->setDefaultFontSize(prefs.default_font_size);
131 settings->setDefaultFixedFontSize(prefs.default_fixed_font_size);
132 settings->setMinimumFontSize(prefs.minimum_font_size);
133 settings->setMinimumLogicalFontSize(prefs.minimum_logical_font_size);
134 settings->setDefaultTextEncodingName(ASCIIToUTF16(prefs.default_encoding));
135 settings->setJavaScriptEnabled(prefs.javascript_enabled);
136 settings->setWebSecurityEnabled(prefs.web_security_enabled);
137 settings->setJavaScriptCanOpenWindowsAutomatically(
138 prefs.javascript_can_open_windows_automatically);
139 settings->setLoadsImagesAutomatically(prefs.loads_images_automatically);
140 settings->setImagesEnabled(prefs.images_enabled);
141 settings->setPluginsEnabled(prefs.plugins_enabled);
142 settings->setDOMPasteAllowed(prefs.dom_paste_enabled);
143 settings->setNeedsSiteSpecificQuirks(prefs.site_specific_quirks_enabled);
144 settings->setShrinksStandaloneImagesToFit(
145 prefs.shrinks_standalone_images_to_fit);
146 settings->setUsesEncodingDetector(prefs.uses_universal_detector);
147 settings->setTextAreasAreResizable(prefs.text_areas_are_resizable);
148 settings->setAllowScriptsToCloseWindows(prefs.allow_scripts_to_close_windows);
149 if (prefs.user_style_sheet_enabled)
150 settings->setUserStyleSheetLocation(prefs.user_style_sheet_location);
152 settings->setUserStyleSheetLocation(WebURL());
153 settings->setAuthorAndUserStylesEnabled(prefs.author_and_user_styles_enabled);
154 settings->setDownloadableBinaryFontsEnabled(prefs.remote_fonts_enabled);
155 settings->setJavaScriptCanAccessClipboard(
156 prefs.javascript_can_access_clipboard);
157 WebRuntimeFeatures::enableXSLT(prefs.xslt_enabled);
158 settings->setXSSAuditorEnabled(prefs.xss_auditor_enabled);
159 settings->setDNSPrefetchingEnabled(prefs.dns_prefetching_enabled);
160 settings->setLocalStorageEnabled(prefs.local_storage_enabled);
161 settings->setSyncXHRInDocumentsEnabled(prefs.sync_xhr_in_documents_enabled);
162 WebRuntimeFeatures::enableDatabase(prefs.databases_enabled);
163 settings->setOfflineWebApplicationCacheEnabled(
164 prefs.application_cache_enabled);
165 settings->setCaretBrowsingEnabled(prefs.caret_browsing_enabled);
166 settings->setHyperlinkAuditingEnabled(prefs.hyperlink_auditing_enabled);
167 settings->setCookieEnabled(prefs.cookie_enabled);
169 // This setting affects the behavior of links in an editable region:
170 // clicking the link should select it rather than navigate to it.
171 // Safari uses the same default. It is unlikley an embedder would want to
172 // change this, since it would break existing rich text editors.
173 settings->setEditableLinkBehaviorNeverLive();
175 settings->setJavaEnabled(prefs.java_enabled);
177 // By default, allow_universal_access_from_file_urls is set to false and thus
178 // we mitigate attacks from local HTML files by not granting file:// URLs
179 // universal access. Only test shell will enable this.
180 settings->setAllowUniversalAccessFromFileURLs(
181 prefs.allow_universal_access_from_file_urls);
182 settings->setAllowFileAccessFromFileURLs(
183 prefs.allow_file_access_from_file_urls);
185 // Enable the web audio API if requested on the command line.
186 settings->setWebAudioEnabled(prefs.webaudio_enabled);
188 // Enable experimental WebGL support if requested on command line
189 // and support is compiled in.
190 settings->setExperimentalWebGLEnabled(prefs.experimental_webgl_enabled);
192 // Disable GL multisampling if requested on command line.
193 settings->setOpenGLMultisamplingEnabled(prefs.gl_multisampling_enabled);
195 // Enable privileged WebGL extensions for Chrome extensions or if requested
197 settings->setPrivilegedWebGLExtensionsEnabled(
198 prefs.privileged_webgl_extensions_enabled);
200 // Enable WebGL errors to the JS console if requested.
201 settings->setWebGLErrorsToConsoleEnabled(
202 prefs.webgl_errors_to_console_enabled);
204 // Enables accelerated compositing for overflow scroll.
205 settings->setAcceleratedCompositingForOverflowScrollEnabled(
206 prefs.accelerated_compositing_for_overflow_scroll_enabled);
208 // Enables accelerated compositing for scrollable frames if requested on
210 settings->setAcceleratedCompositingForScrollableFramesEnabled(
211 prefs.accelerated_compositing_for_scrollable_frames_enabled);
213 // Enables composited scrolling for frames if requested on command line.
214 settings->setCompositedScrollingForFramesEnabled(
215 prefs.composited_scrolling_for_frames_enabled);
217 // Uses the mock theme engine for scrollbars.
218 settings->setMockScrollbarsEnabled(prefs.mock_scrollbars_enabled);
220 settings->setThreadedHTMLParser(prefs.threaded_html_parser);
222 // Display visualization of what has changed on the screen using an
223 // overlay of rects, if requested on the command line.
224 settings->setShowPaintRects(prefs.show_paint_rects);
226 // Enable gpu-accelerated compositing if requested on the command line.
227 settings->setAcceleratedCompositingEnabled(
228 prefs.accelerated_compositing_enabled);
230 // Enable gpu-accelerated 2d canvas if requested on the command line.
231 settings->setAccelerated2dCanvasEnabled(prefs.accelerated_2d_canvas_enabled);
233 settings->setMinimumAccelerated2dCanvasSize(
234 prefs.minimum_accelerated_2d_canvas_size);
236 // Disable antialiasing for 2d canvas if requested on the command line.
237 settings->setAntialiased2dCanvasEnabled(
238 !prefs.antialiased_2d_canvas_disabled);
240 // Set MSAA sample count for 2d canvas if requested on the command line (or
241 // default value if not).
242 settings->setAccelerated2dCanvasMSAASampleCount(
243 prefs.accelerated_2d_canvas_msaa_sample_count);
245 // Enable gpu-accelerated filters if requested on the command line.
246 settings->setAcceleratedFiltersEnabled(prefs.accelerated_filters_enabled);
248 // Enable gesture tap highlight if requested on the command line.
249 settings->setGestureTapHighlightEnabled(prefs.gesture_tap_highlight_enabled);
251 // Enabling accelerated layers from the command line enabled accelerated
252 // 3D CSS, Video, and Animations.
253 settings->setAcceleratedCompositingFor3DTransformsEnabled(
254 prefs.accelerated_compositing_for_3d_transforms_enabled);
255 settings->setAcceleratedCompositingForVideoEnabled(
256 prefs.accelerated_compositing_for_video_enabled);
257 settings->setAcceleratedCompositingForAnimationEnabled(
258 prefs.accelerated_compositing_for_animation_enabled);
260 // Enabling accelerated plugins if specified from the command line.
261 settings->setAcceleratedCompositingForPluginsEnabled(
262 prefs.accelerated_compositing_for_plugins_enabled);
264 // WebGL and accelerated 2D canvas are always gpu composited.
265 settings->setAcceleratedCompositingForCanvasEnabled(
266 prefs.experimental_webgl_enabled || prefs.accelerated_2d_canvas_enabled);
268 // Enable memory info reporting to page if requested on the command line.
269 settings->setMemoryInfoEnabled(prefs.memory_info_enabled);
271 settings->setAsynchronousSpellCheckingEnabled(
272 prefs.asynchronous_spell_checking_enabled);
273 settings->setUnifiedTextCheckerEnabled(prefs.unified_textchecker_enabled);
275 for (webkit_glue::WebInspectorPreferences::const_iterator it =
276 prefs.inspector_settings.begin();
277 it != prefs.inspector_settings.end();
279 web_view->setInspectorSetting(WebString::fromUTF8(it->first),
280 WebString::fromUTF8(it->second));
283 // Tabs to link is not part of the settings. WebCore calls
284 // ChromeClient::tabsToLinks which is part of the glue code.
285 web_view->setTabsToLinks(prefs.tabs_to_links);
287 settings->setFullScreenEnabled(prefs.fullscreen_enabled);
288 settings->setAllowDisplayOfInsecureContent(
289 prefs.allow_displaying_insecure_content);
290 settings->setAllowRunningOfInsecureContent(
291 prefs.allow_running_insecure_content);
292 settings->setPasswordEchoEnabled(prefs.password_echo_enabled);
293 settings->setShouldPrintBackgrounds(prefs.should_print_backgrounds);
294 settings->setEnableScrollAnimator(prefs.enable_scroll_animator);
295 settings->setVisualWordMovementEnabled(prefs.visual_word_movement_enabled);
297 settings->setRegionBasedColumnsEnabled(prefs.region_based_columns_enabled);
299 WebRuntimeFeatures::enableLazyLayout(prefs.lazy_layout_enabled);
300 WebRuntimeFeatures::enableTouch(prefs.touch_enabled);
301 settings->setMaxTouchPoints(prefs.pointer_events_max_touch_points);
302 settings->setDeviceSupportsTouch(prefs.device_supports_touch);
303 settings->setDeviceSupportsMouse(prefs.device_supports_mouse);
304 settings->setEnableTouchAdjustment(prefs.touch_adjustment_enabled);
306 settings->setFixedPositionCreatesStackingContext(
307 prefs.fixed_position_creates_stacking_context);
309 settings->setDeferredImageDecodingEnabled(
310 prefs.deferred_image_decoding_enabled);
311 settings->setShouldRespectImageOrientation(
312 prefs.should_respect_image_orientation);
314 settings->setUnsafePluginPastingEnabled(false);
315 settings->setEditingBehavior(
316 static_cast<WebSettings::EditingBehavior>(prefs.editing_behavior));
318 settings->setSupportsMultipleWindows(prefs.supports_multiple_windows);
320 settings->setViewportEnabled(prefs.viewport_enabled);
321 settings->setLoadWithOverviewMode(prefs.initialize_at_minimum_page_scale);
323 settings->setSmartInsertDeleteEnabled(prefs.smart_insert_delete_enabled);
325 settings->setSpatialNavigationEnabled(prefs.spatial_navigation_enabled);
327 settings->setSelectionIncludesAltImageText(true);
329 // Crosswalk shared settings:
330 settings->setLayoutFallbackWidth(0);
331 settings->setMainFrameClipsContent(false);
333 #if defined(OS_TIZEN)
334 // Scrollbars should not be stylable.
335 settings->setAllowCustomScrollbarInMainFrame(false);
337 // Don't auto play music on Tizen devices.
338 settings->setMediaPlaybackRequiresUserGesture(true);
341 settings->setAutoZoomFocusedNodeToLegibleScale(true);
343 // Enable double tap to zoom when zoomable.
344 settings->setDoubleTapToZoomEnabled(true);
347 #if defined(OS_ANDROID)
348 settings->setAllowCustomScrollbarInMainFrame(false);
349 settings->setTextAutosizingEnabled(prefs.text_autosizing_enabled);
350 settings->setTextAutosizingFontScaleFactor(prefs.font_scale_factor);
351 settings->setDeviceScaleAdjustment(prefs.device_scale_adjustment);
352 web_view->setIgnoreViewportTagScaleLimits(prefs.force_enable_zoom);
353 settings->setAutoZoomFocusedNodeToLegibleScale(true);
354 settings->setDoubleTapToZoomEnabled(prefs.double_tap_to_zoom_enabled);
355 settings->setMediaPlaybackRequiresUserGesture(
356 prefs.user_gesture_required_for_media_playback);
357 settings->setMediaFullscreenRequiresUserGesture(
358 prefs.user_gesture_required_for_media_fullscreen);
359 settings->setDefaultVideoPosterURL(
360 ASCIIToUTF16(prefs.default_video_poster_url.spec()));
361 settings->setSupportDeprecatedTargetDensityDPI(
362 prefs.support_deprecated_target_density_dpi);
363 settings->setUseLegacyBackgroundSizeShorthandBehavior(
364 prefs.use_legacy_background_size_shorthand_behavior);
365 settings->setWideViewportQuirkEnabled(prefs.wide_viewport_quirk);
366 settings->setUseWideViewport(prefs.use_wide_viewport);
367 settings->setViewportMetaLayoutSizeQuirk(
368 prefs.viewport_meta_layout_size_quirk);
369 settings->setViewportMetaMergeContentQuirk(
370 prefs.viewport_meta_merge_content_quirk);
371 settings->setViewportMetaZeroValuesQuirk(
372 prefs.viewport_meta_zero_values_quirk);
373 settings->setIgnoreMainFrameOverflowHiddenQuirk(
374 prefs.ignore_main_frame_overflow_hidden_quirk);
375 settings->setReportScreenSizeInPhysicalPixelsQuirk(
376 prefs.report_screen_size_in_physical_pixels_quirk);
377 settings->setMainFrameClipsContent(false);
378 settings->setShrinksStandaloneImagesToFit(false);
381 WebNetworkStateNotifier::setOnLine(prefs.is_online);
382 settings->setExperimentalWebSocketEnabled(
383 prefs.experimental_websocket_enabled);
384 settings->setPinchVirtualViewportEnabled(
385 prefs.pinch_virtual_viewport_enabled);
387 settings->setPinchOverlayScrollbarThickness(
388 prefs.pinch_overlay_scrollbar_thickness);
389 settings->setUseSolidColorScrollbars(prefs.use_solid_color_scrollbars);
390 settings->setCompositorTouchHitTesting(prefs.compositor_touch_hit_testing);
393 } // namespace content