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. 4 5 #include "content/public/renderer/web_preferences.h" 6 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" 18 19 using blink::WebNetworkStateNotifier; 20 using blink::WebRuntimeFeatures; 21 using blink::WebSettings; 22 using blink::WebString; 23 using blink::WebURL; 24 using blink::WebView; 25 26 namespace content { 27 28 namespace { 29 30 typedef void (*SetFontFamilyWrapper)(blink::WebSettings*, 31 const base::string16&, 32 UScriptCode); 33 34 void setStandardFontFamilyWrapper(WebSettings* settings, 35 const base::string16& font, 36 UScriptCode script) { 37 settings->setStandardFontFamily(font, script); 38 } 39 40 void setFixedFontFamilyWrapper(WebSettings* settings, 41 const base::string16& font, 42 UScriptCode script) { 43 settings->setFixedFontFamily(font, script); 44 } 45 46 void setSerifFontFamilyWrapper(WebSettings* settings, 47 const base::string16& font, 48 UScriptCode script) { 49 settings->setSerifFontFamily(font, script); 50 } 51 52 void setSansSerifFontFamilyWrapper(WebSettings* settings, 53 const base::string16& font, 54 UScriptCode script) { 55 settings->setSansSerifFontFamily(font, script); 56 } 57 58 void setCursiveFontFamilyWrapper(WebSettings* settings, 59 const base::string16& font, 60 UScriptCode script) { 61 settings->setCursiveFontFamily(font, script); 62 } 63 64 void setFantasyFontFamilyWrapper(WebSettings* settings, 65 const base::string16& font, 66 UScriptCode script) { 67 settings->setFantasyFontFamily(font, script); 68 } 69 70 void setPictographFontFamilyWrapper(WebSettings* settings, 71 const base::string16& font, 72 UScriptCode script) { 73 settings->setPictographFontFamily(font, script); 74 } 75 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) { 86 switch (scriptCode) { 87 case USCRIPT_HIRAGANA: 88 case USCRIPT_KATAKANA: 89 case USCRIPT_JAPANESE: 90 return USCRIPT_KATAKANA_OR_HIRAGANA; 91 case USCRIPT_KOREAN: 92 return USCRIPT_HANGUL; 93 default: 94 return scriptCode; 95 } 96 } 97 98 void ApplyFontsFromMap(const webkit_glue::ScriptFontFamilyMap& map, 99 SetFontFamilyWrapper setter, 100 WebSettings* settings) { 101 for (webkit_glue::ScriptFontFamilyMap::const_iterator it = map.begin(); 102 it != map.end(); 103 ++it) { 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)); 108 } 109 } 110 } 111 112 } // namespace 113 114 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 settings->setDownloadableBinaryFontsEnabled(prefs.remote_fonts_enabled); 150 settings->setJavaScriptCanAccessClipboard( 151 prefs.javascript_can_access_clipboard); 152 WebRuntimeFeatures::enableXSLT(prefs.xslt_enabled); 153 settings->setXSSAuditorEnabled(prefs.xss_auditor_enabled); 154 settings->setDNSPrefetchingEnabled(prefs.dns_prefetching_enabled); 155 settings->setLocalStorageEnabled(prefs.local_storage_enabled); 156 settings->setSyncXHRInDocumentsEnabled(prefs.sync_xhr_in_documents_enabled); 157 WebRuntimeFeatures::enableDatabase(prefs.databases_enabled); 158 settings->setOfflineWebApplicationCacheEnabled( 159 prefs.application_cache_enabled); 160 settings->setCaretBrowsingEnabled(prefs.caret_browsing_enabled); 161 settings->setHyperlinkAuditingEnabled(prefs.hyperlink_auditing_enabled); 162 settings->setCookieEnabled(prefs.cookie_enabled); 163 164 // This setting affects the behavior of links in an editable region: 165 // clicking the link should select it rather than navigate to it. 166 // Safari uses the same default. It is unlikley an embedder would want to 167 // change this, since it would break existing rich text editors. 168 settings->setEditableLinkBehaviorNeverLive(); 169 170 settings->setJavaEnabled(prefs.java_enabled); 171 172 // By default, allow_universal_access_from_file_urls is set to false and thus 173 // we mitigate attacks from local HTML files by not granting file:// URLs 174 // universal access. Only test shell will enable this. 175 settings->setAllowUniversalAccessFromFileURLs( 176 prefs.allow_universal_access_from_file_urls); 177 settings->setAllowFileAccessFromFileURLs( 178 prefs.allow_file_access_from_file_urls); 179 180 // Enable the web audio API if requested on the command line. 181 settings->setWebAudioEnabled(prefs.webaudio_enabled); 182 183 // Enable experimental WebGL support if requested on command line 184 // and support is compiled in. 185 settings->setExperimentalWebGLEnabled(prefs.experimental_webgl_enabled); 186 187 // Disable GL multisampling if requested on command line. 188 settings->setOpenGLMultisamplingEnabled(prefs.gl_multisampling_enabled); 189 190 // Enable privileged WebGL extensions for Chrome extensions or if requested 191 // on command line. 192 settings->setPrivilegedWebGLExtensionsEnabled( 193 prefs.privileged_webgl_extensions_enabled); 194 195 // Enable WebGL errors to the JS console if requested. 196 settings->setWebGLErrorsToConsoleEnabled( 197 prefs.webgl_errors_to_console_enabled); 198 199 // Enables accelerated compositing for overflow scroll. 200 settings->setAcceleratedCompositingForOverflowScrollEnabled( 201 prefs.accelerated_compositing_for_overflow_scroll_enabled); 202 203 // Enables accelerated compositing for scrollable frames if requested on 204 // command line. 205 settings->setAcceleratedCompositingForScrollableFramesEnabled( 206 prefs.accelerated_compositing_for_scrollable_frames_enabled); 207 208 // Enables composited scrolling for frames if requested on command line. 209 settings->setCompositedScrollingForFramesEnabled( 210 prefs.composited_scrolling_for_frames_enabled); 211 212 // Uses the mock theme engine for scrollbars. 213 settings->setMockScrollbarsEnabled(prefs.mock_scrollbars_enabled); 214 215 settings->setLayerSquashingEnabled(prefs.layer_squashing_enabled); 216 217 settings->setThreadedHTMLParser(prefs.threaded_html_parser); 218 219 // Display visualization of what has changed on the screen using an 220 // overlay of rects, if requested on the command line. 221 settings->setShowPaintRects(prefs.show_paint_rects); 222 223 // Enable gpu-accelerated compositing if requested on the command line. 224 settings->setAcceleratedCompositingEnabled( 225 prefs.accelerated_compositing_enabled); 226 227 // Enable gpu-accelerated 2d canvas if requested on the command line. 228 settings->setAccelerated2dCanvasEnabled(prefs.accelerated_2d_canvas_enabled); 229 230 settings->setMinimumAccelerated2dCanvasSize( 231 prefs.minimum_accelerated_2d_canvas_size); 232 233 // Disable antialiasing for 2d canvas if requested on the command line. 234 settings->setAntialiased2dCanvasEnabled( 235 !prefs.antialiased_2d_canvas_disabled); 236 237 // Set MSAA sample count for 2d canvas if requested on the command line (or 238 // default value if not). 239 settings->setAccelerated2dCanvasMSAASampleCount( 240 prefs.accelerated_2d_canvas_msaa_sample_count); 241 242 // Enable gpu-accelerated filters if requested on the command line. 243 settings->setAcceleratedFiltersEnabled(prefs.accelerated_filters_enabled); 244 245 // Enable gesture tap highlight if requested on the command line. 246 settings->setGestureTapHighlightEnabled(prefs.gesture_tap_highlight_enabled); 247 248 // Enabling accelerated layers from the command line enabled accelerated 249 // 3D CSS, Video, and Animations. 250 settings->setAcceleratedCompositingFor3DTransformsEnabled( 251 prefs.accelerated_compositing_for_3d_transforms_enabled); 252 settings->setAcceleratedCompositingForVideoEnabled( 253 prefs.accelerated_compositing_for_video_enabled); 254 settings->setAcceleratedCompositingForAnimationEnabled( 255 prefs.accelerated_compositing_for_animation_enabled); 256 257 // Enabling accelerated plugins if specified from the command line. 258 settings->setAcceleratedCompositingForPluginsEnabled( 259 prefs.accelerated_compositing_for_plugins_enabled); 260 261 // WebGL and accelerated 2D canvas are always gpu composited. 262 settings->setAcceleratedCompositingForCanvasEnabled( 263 prefs.experimental_webgl_enabled || prefs.accelerated_2d_canvas_enabled); 264 265 // Enable memory info reporting to page if requested on the command line. 266 settings->setMemoryInfoEnabled(prefs.memory_info_enabled); 267 268 settings->setAsynchronousSpellCheckingEnabled( 269 prefs.asynchronous_spell_checking_enabled); 270 settings->setUnifiedTextCheckerEnabled(prefs.unified_textchecker_enabled); 271 272 for (webkit_glue::WebInspectorPreferences::const_iterator it = 273 prefs.inspector_settings.begin(); 274 it != prefs.inspector_settings.end(); 275 ++it) { 276 web_view->setInspectorSetting(WebString::fromUTF8(it->first), 277 WebString::fromUTF8(it->second)); 278 } 279 280 // Tabs to link is not part of the settings. WebCore calls 281 // ChromeClient::tabsToLinks which is part of the glue code. 282 web_view->setTabsToLinks(prefs.tabs_to_links); 283 284 settings->setFullScreenEnabled(prefs.fullscreen_enabled); 285 settings->setAllowDisplayOfInsecureContent( 286 prefs.allow_displaying_insecure_content); 287 settings->setAllowRunningOfInsecureContent( 288 prefs.allow_running_insecure_content); 289 settings->setPasswordEchoEnabled(prefs.password_echo_enabled); 290 settings->setShouldPrintBackgrounds(prefs.should_print_backgrounds); 291 settings->setShouldClearDocumentBackground( 292 prefs.should_clear_document_background); 293 settings->setEnableScrollAnimator(prefs.enable_scroll_animator); 294 settings->setVisualWordMovementEnabled(prefs.visual_word_movement_enabled); 295 296 settings->setRegionBasedColumnsEnabled(prefs.region_based_columns_enabled); 297 298 WebRuntimeFeatures::enableLazyLayout(prefs.lazy_layout_enabled); 299 WebRuntimeFeatures::enableTouch(prefs.touch_enabled); 300 settings->setMaxTouchPoints(prefs.pointer_events_max_touch_points); 301 settings->setDeviceSupportsTouch(prefs.device_supports_touch); 302 settings->setDeviceSupportsMouse(prefs.device_supports_mouse); 303 settings->setEnableTouchAdjustment(prefs.touch_adjustment_enabled); 304 305 settings->setFixedPositionCreatesStackingContext( 306 prefs.fixed_position_creates_stacking_context); 307 308 settings->setDeferredImageDecodingEnabled( 309 prefs.deferred_image_decoding_enabled); 310 settings->setShouldRespectImageOrientation( 311 prefs.should_respect_image_orientation); 312 313 settings->setUnsafePluginPastingEnabled(false); 314 settings->setEditingBehavior( 315 static_cast<WebSettings::EditingBehavior>(prefs.editing_behavior)); 316 317 settings->setSupportsMultipleWindows(prefs.supports_multiple_windows); 318 319 settings->setViewportEnabled(prefs.viewport_enabled); 320 settings->setLoadWithOverviewMode(prefs.initialize_at_minimum_page_scale); 321 settings->setViewportMetaEnabled(prefs.viewport_meta_enabled); 322 settings->setMainFrameResizesAreOrientationChanges( 323 prefs.main_frame_resizes_are_orientation_changes); 324 325 settings->setSmartInsertDeleteEnabled(prefs.smart_insert_delete_enabled); 326 327 settings->setSpatialNavigationEnabled(prefs.spatial_navigation_enabled); 328 329 settings->setSelectionIncludesAltImageText(true); 330 331 #if defined(OS_ANDROID) 332 settings->setAllowCustomScrollbarInMainFrame(false); 333 settings->setTextAutosizingEnabled(prefs.text_autosizing_enabled); 334 settings->setAccessibilityFontScaleFactor(prefs.font_scale_factor); 335 settings->setDeviceScaleAdjustment(prefs.device_scale_adjustment); 336 web_view->setIgnoreViewportTagScaleLimits(prefs.force_enable_zoom); 337 settings->setAutoZoomFocusedNodeToLegibleScale(true); 338 settings->setDoubleTapToZoomEnabled(prefs.double_tap_to_zoom_enabled); 339 settings->setMediaPlaybackRequiresUserGesture( 340 prefs.user_gesture_required_for_media_playback); 341 settings->setMediaFullscreenRequiresUserGesture( 342 prefs.user_gesture_required_for_media_fullscreen); 343 settings->setDefaultVideoPosterURL( 344 ASCIIToUTF16(prefs.default_video_poster_url.spec())); 345 settings->setSupportDeprecatedTargetDensityDPI( 346 prefs.support_deprecated_target_density_dpi); 347 settings->setUseLegacyBackgroundSizeShorthandBehavior( 348 prefs.use_legacy_background_size_shorthand_behavior); 349 settings->setWideViewportQuirkEnabled(prefs.wide_viewport_quirk); 350 settings->setUseWideViewport(prefs.use_wide_viewport); 351 settings->setViewportMetaLayoutSizeQuirk( 352 prefs.viewport_meta_layout_size_quirk); 353 settings->setViewportMetaMergeContentQuirk( 354 prefs.viewport_meta_merge_content_quirk); 355 settings->setViewportMetaNonUserScalableQuirk( 356 prefs.viewport_meta_non_user_scalable_quirk); 357 settings->setViewportMetaZeroValuesQuirk( 358 prefs.viewport_meta_zero_values_quirk); 359 settings->setClobberUserAgentInitialScaleQuirk( 360 prefs.clobber_user_agent_initial_scale_quirk); 361 settings->setIgnoreMainFrameOverflowHiddenQuirk( 362 prefs.ignore_main_frame_overflow_hidden_quirk); 363 settings->setReportScreenSizeInPhysicalPixelsQuirk( 364 prefs.report_screen_size_in_physical_pixels_quirk); 365 settings->setMainFrameClipsContent(false); 366 settings->setShrinksStandaloneImagesToFit(false); 367 #endif 368 369 WebNetworkStateNotifier::setOnLine(prefs.is_online); 370 settings->setExperimentalWebSocketEnabled( 371 prefs.experimental_websocket_enabled); 372 settings->setPinchVirtualViewportEnabled( 373 prefs.pinch_virtual_viewport_enabled); 374 375 settings->setPinchOverlayScrollbarThickness( 376 prefs.pinch_overlay_scrollbar_thickness); 377 settings->setUseSolidColorScrollbars(prefs.use_solid_color_scrollbars); 378 settings->setCompositorTouchHitTesting(prefs.compositor_touch_hit_testing); 379 } 380 381 } // namespace content 382
