1 // Copyright (c) 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 "android_webview/native/aw_settings.h"
7 #include "android_webview/browser/renderer_host/aw_render_view_host_ext.h"
8 #include "android_webview/common/aw_content_client.h"
9 #include "android_webview/native/aw_contents.h"
10 #include "base/android/jni_android.h"
11 #include "base/android/jni_string.h"
12 #include "base/macros.h"
13 #include "base/supports_user_data.h"
14 #include "content/public/browser/navigation_controller.h"
15 #include "content/public/browser/navigation_entry.h"
16 #include "content/public/browser/render_view_host.h"
17 #include "content/public/browser/web_contents.h"
18 #include "content/public/common/renderer_preferences.h"
19 #include "content/public/common/web_preferences.h"
20 #include "jni/AwSettings_jni.h"
21 #include "ui/gfx/font_render_params.h"
23 using base::android::ConvertJavaStringToUTF16
;
24 using base::android::ConvertUTF8ToJavaString
;
25 using base::android::ScopedJavaLocalRef
;
26 using content::RendererPreferences
;
27 using content::WebPreferences
;
29 namespace android_webview
{
33 void PopulateFixedRendererPreferences(RendererPreferences
* prefs
) {
34 prefs
->tap_multiple_targets_strategy
=
35 content::TAP_MULTIPLE_TARGETS_STRATEGY_NONE
;
37 // TODO(boliu): Deduplicate with chrome/ code.
38 CR_DEFINE_STATIC_LOCAL(const gfx::FontRenderParams
, params
,
39 (gfx::GetFontRenderParams(gfx::FontRenderParamsQuery(), NULL
)));
40 prefs
->should_antialias_text
= params
.antialiasing
;
41 prefs
->use_subpixel_positioning
= params
.subpixel_positioning
;
42 prefs
->hinting
= params
.hinting
;
43 prefs
->use_autohinter
= params
.autohinter
;
44 prefs
->use_bitmaps
= params
.use_bitmaps
;
45 prefs
->subpixel_rendering
= params
.subpixel_rendering
;
48 void PopulateFixedWebPreferences(WebPreferences
* web_prefs
) {
49 web_prefs
->shrinks_standalone_images_to_fit
= false;
50 web_prefs
->should_clear_document_background
= false;
55 const void* kAwSettingsUserDataKey
= &kAwSettingsUserDataKey
;
57 class AwSettingsUserData
: public base::SupportsUserData::Data
{
59 AwSettingsUserData(AwSettings
* ptr
) : settings_(ptr
) {}
61 static AwSettings
* GetSettings(content::WebContents
* web_contents
) {
64 AwSettingsUserData
* data
= static_cast<AwSettingsUserData
*>(
65 web_contents
->GetUserData(kAwSettingsUserDataKey
));
66 return data
? data
->settings_
: NULL
;
70 AwSettings
* settings_
;
73 AwSettings::AwSettings(JNIEnv
* env
,
75 content::WebContents
* web_contents
)
76 : WebContentsObserver(web_contents
),
77 renderer_prefs_initialized_(false),
78 aw_settings_(env
, obj
) {
79 web_contents
->SetUserData(kAwSettingsUserDataKey
,
80 new AwSettingsUserData(this));
83 AwSettings::~AwSettings() {
85 web_contents()->SetUserData(kAwSettingsUserDataKey
, NULL
);
88 JNIEnv
* env
= base::android::AttachCurrentThread();
89 ScopedJavaLocalRef
<jobject
> scoped_obj
= aw_settings_
.get(env
);
90 jobject obj
= scoped_obj
.obj();
92 Java_AwSettings_nativeAwSettingsGone(env
, obj
,
93 reinterpret_cast<intptr_t>(this));
96 void AwSettings::Destroy(JNIEnv
* env
, jobject obj
) {
100 AwSettings
* AwSettings::FromWebContents(content::WebContents
* web_contents
) {
101 return AwSettingsUserData::GetSettings(web_contents
);
104 AwRenderViewHostExt
* AwSettings::GetAwRenderViewHostExt() {
105 if (!web_contents()) return NULL
;
106 AwContents
* contents
= AwContents::FromWebContents(web_contents());
107 if (!contents
) return NULL
;
108 return contents
->render_view_host_ext();
111 void AwSettings::ResetScrollAndScaleState(JNIEnv
* env
, jobject obj
) {
112 AwRenderViewHostExt
* rvhe
= GetAwRenderViewHostExt();
114 rvhe
->ResetScrollAndScaleState();
117 void AwSettings::UpdateEverything() {
118 JNIEnv
* env
= base::android::AttachCurrentThread();
120 ScopedJavaLocalRef
<jobject
> scoped_obj
= aw_settings_
.get(env
);
121 jobject obj
= scoped_obj
.obj();
123 // Grab the lock and call UpdateEverythingLocked.
124 Java_AwSettings_updateEverything(env
, obj
);
127 void AwSettings::UpdateEverythingLocked(JNIEnv
* env
, jobject obj
) {
128 UpdateInitialPageScaleLocked(env
, obj
);
129 UpdateWebkitPreferencesLocked(env
, obj
);
130 UpdateUserAgentLocked(env
, obj
);
131 ResetScrollAndScaleState(env
, obj
);
132 UpdateFormDataPreferencesLocked(env
, obj
);
133 UpdateRendererPreferencesLocked(env
, obj
);
134 UpdateOffscreenPreRasterLocked(env
, obj
);
137 void AwSettings::UpdateUserAgentLocked(JNIEnv
* env
, jobject obj
) {
138 if (!web_contents()) return;
140 ScopedJavaLocalRef
<jstring
> str
=
141 Java_AwSettings_getUserAgentLocked(env
, obj
);
142 bool ua_overidden
= str
.obj() != NULL
;
145 std::string override
= base::android::ConvertJavaStringToUTF8(str
);
146 web_contents()->SetUserAgentOverride(override
);
149 const content::NavigationController
& controller
=
150 web_contents()->GetController();
151 for (int i
= 0; i
< controller
.GetEntryCount(); ++i
)
152 controller
.GetEntryAtIndex(i
)->SetIsOverridingUserAgent(ua_overidden
);
155 void AwSettings::UpdateWebkitPreferencesLocked(JNIEnv
* env
, jobject obj
) {
156 if (!web_contents()) return;
157 AwRenderViewHostExt
* render_view_host_ext
= GetAwRenderViewHostExt();
158 if (!render_view_host_ext
) return;
160 content::RenderViewHost
* render_view_host
=
161 web_contents()->GetRenderViewHost();
162 if (!render_view_host
) return;
163 render_view_host
->OnWebkitPreferencesChanged();
166 void AwSettings::UpdateInitialPageScaleLocked(JNIEnv
* env
, jobject obj
) {
167 AwRenderViewHostExt
* rvhe
= GetAwRenderViewHostExt();
170 float initial_page_scale_percent
=
171 Java_AwSettings_getInitialPageScalePercentLocked(env
, obj
);
172 if (initial_page_scale_percent
== 0) {
173 rvhe
->SetInitialPageScale(-1);
175 float dip_scale
= static_cast<float>(
176 Java_AwSettings_getDIPScaleLocked(env
, obj
));
177 rvhe
->SetInitialPageScale(initial_page_scale_percent
/ dip_scale
/ 100.0f
);
181 void AwSettings::UpdateFormDataPreferencesLocked(JNIEnv
* env
, jobject obj
) {
182 if (!web_contents()) return;
183 AwContents
* contents
= AwContents::FromWebContents(web_contents());
184 if (!contents
) return;
186 contents
->SetSaveFormData(Java_AwSettings_getSaveFormDataLocked(env
, obj
));
189 void AwSettings::UpdateRendererPreferencesLocked(JNIEnv
* env
, jobject obj
) {
190 if (!web_contents()) return;
192 bool update_prefs
= false;
193 RendererPreferences
* prefs
= web_contents()->GetMutableRendererPrefs();
195 if (!renderer_prefs_initialized_
) {
196 PopulateFixedRendererPreferences(prefs
);
197 renderer_prefs_initialized_
= true;
202 Java_AwSettings_getVideoOverlayForEmbeddedVideoEnabledLocked(env
, obj
);
203 bool force_video_overlay
=
204 Java_AwSettings_getForceVideoOverlayForTests(env
, obj
);
206 prefs
->use_video_overlay_for_embedded_encrypted_video
||
207 force_video_overlay
!= prefs
->use_view_overlay_for_all_video
) {
208 prefs
->use_video_overlay_for_embedded_encrypted_video
= video_overlay
;
209 prefs
->use_view_overlay_for_all_video
= force_video_overlay
;
213 content::RenderViewHost
* host
= web_contents()->GetRenderViewHost();
214 if (update_prefs
&& host
)
215 host
->SyncRendererPrefs();
218 void AwSettings::UpdateOffscreenPreRasterLocked(JNIEnv
* env
, jobject obj
) {
219 AwContents
* contents
= AwContents::FromWebContents(web_contents());
221 contents
->SetOffscreenPreRaster(
222 Java_AwSettings_getOffscreenPreRasterLocked(env
, obj
));
226 void AwSettings::RenderViewCreated(content::RenderViewHost
* render_view_host
) {
227 // A single WebContents can normally have 0 to many RenderViewHost instances
228 // associated with it.
229 // This is important since there is only one RenderViewHostExt instance per
230 // WebContents (and not one RVHExt per RVH, as you might expect) and updating
231 // settings via RVHExt only ever updates the 'current' RVH.
232 // In android_webview we don't swap out the RVH on cross-site navigations, so
233 // we shouldn't have to deal with the multiple RVH per WebContents case. That
234 // in turn means that the newly created RVH is always the 'current' RVH
235 // (since we only ever go from 0 to 1 RVH instances) and hence the DCHECK.
236 DCHECK_EQ(render_view_host
, web_contents()->GetRenderViewHost());
241 void AwSettings::WebContentsDestroyed() {
245 void AwSettings::PopulateWebPreferences(WebPreferences
* web_prefs
) {
246 JNIEnv
* env
= base::android::AttachCurrentThread();
248 ScopedJavaLocalRef
<jobject
> scoped_obj
= aw_settings_
.get(env
);
249 jobject obj
= scoped_obj
.obj();
251 // Grab the lock and call PopulateWebPreferencesLocked.
252 Java_AwSettings_populateWebPreferences(
253 env
, obj
, reinterpret_cast<jlong
>(web_prefs
));
256 void AwSettings::PopulateWebPreferencesLocked(
257 JNIEnv
* env
, jobject obj
, jlong web_prefs_ptr
) {
258 AwRenderViewHostExt
* render_view_host_ext
= GetAwRenderViewHostExt();
259 if (!render_view_host_ext
) return;
261 WebPreferences
* web_prefs
= reinterpret_cast<WebPreferences
*>(web_prefs_ptr
);
262 PopulateFixedWebPreferences(web_prefs
);
264 web_prefs
->text_autosizing_enabled
=
265 Java_AwSettings_getTextAutosizingEnabledLocked(env
, obj
);
267 int text_size_percent
= Java_AwSettings_getTextSizePercentLocked(env
, obj
);
268 if (web_prefs
->text_autosizing_enabled
) {
269 web_prefs
->font_scale_factor
= text_size_percent
/ 100.0f
;
270 web_prefs
->force_enable_zoom
= text_size_percent
>= 130;
271 // Use the default zoom factor value when Text Autosizer is turned on.
272 render_view_host_ext
->SetTextZoomFactor(1);
274 web_prefs
->force_enable_zoom
= false;
275 render_view_host_ext
->SetTextZoomFactor(text_size_percent
/ 100.0f
);
278 web_prefs
->standard_font_family_map
[content::kCommonScript
] =
279 ConvertJavaStringToUTF16(
280 Java_AwSettings_getStandardFontFamilyLocked(env
, obj
));
282 web_prefs
->fixed_font_family_map
[content::kCommonScript
] =
283 ConvertJavaStringToUTF16(
284 Java_AwSettings_getFixedFontFamilyLocked(env
, obj
));
286 web_prefs
->sans_serif_font_family_map
[content::kCommonScript
] =
287 ConvertJavaStringToUTF16(
288 Java_AwSettings_getSansSerifFontFamilyLocked(env
, obj
));
290 web_prefs
->serif_font_family_map
[content::kCommonScript
] =
291 ConvertJavaStringToUTF16(
292 Java_AwSettings_getSerifFontFamilyLocked(env
, obj
));
294 web_prefs
->cursive_font_family_map
[content::kCommonScript
] =
295 ConvertJavaStringToUTF16(
296 Java_AwSettings_getCursiveFontFamilyLocked(env
, obj
));
298 web_prefs
->fantasy_font_family_map
[content::kCommonScript
] =
299 ConvertJavaStringToUTF16(
300 Java_AwSettings_getFantasyFontFamilyLocked(env
, obj
));
302 web_prefs
->default_encoding
= ConvertJavaStringToUTF8(
303 Java_AwSettings_getDefaultTextEncodingLocked(env
, obj
));
305 web_prefs
->minimum_font_size
=
306 Java_AwSettings_getMinimumFontSizeLocked(env
, obj
);
308 web_prefs
->minimum_logical_font_size
=
309 Java_AwSettings_getMinimumLogicalFontSizeLocked(env
, obj
);
311 web_prefs
->default_font_size
=
312 Java_AwSettings_getDefaultFontSizeLocked(env
, obj
);
314 web_prefs
->default_fixed_font_size
=
315 Java_AwSettings_getDefaultFixedFontSizeLocked(env
, obj
);
317 // Blink's LoadsImagesAutomatically and ImagesEnabled must be
318 // set cris-cross to Android's. See
319 // https://code.google.com/p/chromium/issues/detail?id=224317#c26
320 web_prefs
->loads_images_automatically
=
321 Java_AwSettings_getImagesEnabledLocked(env
, obj
);
322 web_prefs
->images_enabled
=
323 Java_AwSettings_getLoadsImagesAutomaticallyLocked(env
, obj
);
325 web_prefs
->javascript_enabled
=
326 Java_AwSettings_getJavaScriptEnabledLocked(env
, obj
);
328 web_prefs
->allow_universal_access_from_file_urls
=
329 Java_AwSettings_getAllowUniversalAccessFromFileURLsLocked(env
, obj
);
331 web_prefs
->allow_file_access_from_file_urls
=
332 Java_AwSettings_getAllowFileAccessFromFileURLsLocked(env
, obj
);
334 web_prefs
->javascript_can_open_windows_automatically
=
335 Java_AwSettings_getJavaScriptCanOpenWindowsAutomaticallyLocked(env
, obj
);
337 web_prefs
->supports_multiple_windows
=
338 Java_AwSettings_getSupportMultipleWindowsLocked(env
, obj
);
340 web_prefs
->plugins_enabled
=
341 !Java_AwSettings_getPluginsDisabledLocked(env
, obj
);
343 web_prefs
->application_cache_enabled
=
344 Java_AwSettings_getAppCacheEnabledLocked(env
, obj
);
346 web_prefs
->local_storage_enabled
=
347 Java_AwSettings_getDomStorageEnabledLocked(env
, obj
);
349 web_prefs
->databases_enabled
=
350 Java_AwSettings_getDatabaseEnabledLocked(env
, obj
);
352 web_prefs
->wide_viewport_quirk
= true;
353 web_prefs
->use_wide_viewport
=
354 Java_AwSettings_getUseWideViewportLocked(env
, obj
);
356 web_prefs
->force_zero_layout_height
=
357 Java_AwSettings_getForceZeroLayoutHeightLocked(env
, obj
);
359 const bool zero_layout_height_disables_viewport_quirk
=
360 Java_AwSettings_getZeroLayoutHeightDisablesViewportQuirkLocked(env
, obj
);
361 web_prefs
->viewport_enabled
= !(zero_layout_height_disables_viewport_quirk
&&
362 web_prefs
->force_zero_layout_height
);
364 web_prefs
->double_tap_to_zoom_enabled
=
365 Java_AwSettings_supportsDoubleTapZoomLocked(env
, obj
);
367 web_prefs
->initialize_at_minimum_page_scale
=
368 Java_AwSettings_getLoadWithOverviewModeLocked(env
, obj
);
370 web_prefs
->user_gesture_required_for_media_playback
=
371 Java_AwSettings_getMediaPlaybackRequiresUserGestureLocked(env
, obj
);
373 ScopedJavaLocalRef
<jstring
> url
=
374 Java_AwSettings_getDefaultVideoPosterURLLocked(env
, obj
);
375 web_prefs
->default_video_poster_url
= url
.obj() ?
376 GURL(ConvertJavaStringToUTF8(url
)) : GURL();
378 bool support_quirks
= Java_AwSettings_getSupportLegacyQuirksLocked(env
, obj
);
379 // Please see the corresponding Blink settings for bug references.
380 web_prefs
->support_deprecated_target_density_dpi
= support_quirks
;
381 web_prefs
->use_legacy_background_size_shorthand_behavior
= support_quirks
;
382 web_prefs
->viewport_meta_layout_size_quirk
= support_quirks
;
383 web_prefs
->viewport_meta_merge_content_quirk
= support_quirks
;
384 web_prefs
->viewport_meta_non_user_scalable_quirk
= support_quirks
;
385 web_prefs
->viewport_meta_zero_values_quirk
= support_quirks
;
386 web_prefs
->clobber_user_agent_initial_scale_quirk
= support_quirks
;
387 web_prefs
->ignore_main_frame_overflow_hidden_quirk
= support_quirks
;
388 web_prefs
->report_screen_size_in_physical_pixels_quirk
= support_quirks
;
390 web_prefs
->password_echo_enabled
=
391 Java_AwSettings_getPasswordEchoEnabledLocked(env
, obj
);
392 web_prefs
->spatial_navigation_enabled
=
393 Java_AwSettings_getSpatialNavigationLocked(env
, obj
);
395 bool enable_supported_hardware_accelerated_features
=
396 Java_AwSettings_getEnableSupportedHardwareAcceleratedFeaturesLocked(
399 bool accelerated_2d_canvas_enabled_by_switch
=
400 web_prefs
->accelerated_2d_canvas_enabled
;
401 web_prefs
->accelerated_2d_canvas_enabled
= true;
402 if (!accelerated_2d_canvas_enabled_by_switch
||
403 !enable_supported_hardware_accelerated_features
) {
404 // Any canvas smaller than this will fallback to software. Abusing this
405 // slightly to turn canvas off without changing
406 // accelerated_2d_canvas_enabled, which also affects compositing mode.
407 // Using 100M instead of max int to avoid overflows.
408 web_prefs
->minimum_accelerated_2d_canvas_size
= 100 * 1000 * 1000;
410 web_prefs
->experimental_webgl_enabled
=
411 web_prefs
->experimental_webgl_enabled
&&
412 enable_supported_hardware_accelerated_features
;
414 web_prefs
->allow_displaying_insecure_content
=
415 Java_AwSettings_getAllowDisplayingInsecureContentLocked(env
, obj
);
416 web_prefs
->allow_running_insecure_content
=
417 Java_AwSettings_getAllowRunningInsecureContentLocked(env
, obj
);
419 web_prefs
->fullscreen_supported
=
420 Java_AwSettings_getFullscreenSupportedLocked(env
, obj
);
421 web_prefs
->record_whole_document
=
422 Java_AwSettings_getRecordFullDocument(env
, obj
);
425 static jlong
Init(JNIEnv
* env
,
426 const JavaParamRef
<jobject
>& obj
,
427 const JavaParamRef
<jobject
>& web_contents
) {
428 content::WebContents
* contents
= content::WebContents::FromJavaWebContents(
430 AwSettings
* settings
= new AwSettings(env
, obj
, contents
);
431 return reinterpret_cast<intptr_t>(settings
);
434 static ScopedJavaLocalRef
<jstring
> GetDefaultUserAgent(
436 const JavaParamRef
<jclass
>& clazz
) {
437 return base::android::ConvertUTF8ToJavaString(env
, GetUserAgent());
440 bool RegisterAwSettings(JNIEnv
* env
) {
441 return RegisterNativesImpl(env
);
444 } // namespace android_webview