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
setStandardFontFamilyWrapper(WebSettings * settings,const base::string16 & font,UScriptCode script)34 void setStandardFontFamilyWrapper(WebSettings* settings,
35 const base::string16& font,
36 UScriptCode script) {
37 settings->setStandardFontFamily(font, script);
38 }
39
setFixedFontFamilyWrapper(WebSettings * settings,const base::string16 & font,UScriptCode script)40 void setFixedFontFamilyWrapper(WebSettings* settings,
41 const base::string16& font,
42 UScriptCode script) {
43 settings->setFixedFontFamily(font, script);
44 }
45
setSerifFontFamilyWrapper(WebSettings * settings,const base::string16 & font,UScriptCode script)46 void setSerifFontFamilyWrapper(WebSettings* settings,
47 const base::string16& font,
48 UScriptCode script) {
49 settings->setSerifFontFamily(font, script);
50 }
51
setSansSerifFontFamilyWrapper(WebSettings * settings,const base::string16 & font,UScriptCode script)52 void setSansSerifFontFamilyWrapper(WebSettings* settings,
53 const base::string16& font,
54 UScriptCode script) {
55 settings->setSansSerifFontFamily(font, script);
56 }
57
setCursiveFontFamilyWrapper(WebSettings * settings,const base::string16 & font,UScriptCode script)58 void setCursiveFontFamilyWrapper(WebSettings* settings,
59 const base::string16& font,
60 UScriptCode script) {
61 settings->setCursiveFontFamily(font, script);
62 }
63
setFantasyFontFamilyWrapper(WebSettings * settings,const base::string16 & font,UScriptCode script)64 void setFantasyFontFamilyWrapper(WebSettings* settings,
65 const base::string16& font,
66 UScriptCode script) {
67 settings->setFantasyFontFamily(font, script);
68 }
69
setPictographFontFamilyWrapper(WebSettings * settings,const base::string16 & font,UScriptCode script)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|.
GetScriptForWebSettings(UScriptCode 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
ApplyFontsFromMap(const webkit_glue::ScriptFontFamilyMap & map,SetFontFamilyWrapper setter,WebSettings * settings)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
ApplyWebPreferences(const WebPreferences & prefs,WebView * web_view)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