| # Defines properties which are available on the Settings object. |
| # |
| # Please think carefully before adding a new Setting. Some questions to |
| # consider are: |
| # - Should this be a RuntimeEnabledFeature instead? Settings are for things |
| # which we support either values of at runtime. Features are set at renderer |
| # process startup and are never changed. Features also tend to be set to a |
| # value based on the platform or the stability of the code in question, where |
| # as settings both codepaths need to be stable. |
| # - How will you ensure test coverage of all relevant values of your setting? |
| # - Is the default value appropriate for other platforms or ports which may |
| # not be aware of your setting? |
| # - Can your setting result in behavior differences observable to web |
| # developers? |
| # - Should this setting ideally be removed in the future? If so please file |
| # a bug and reference it in the comments for your setting. |
| # |
| # One reason to add a Setting is to manage the risk associated with adding a |
| # new feature. For example, we may choose to ship a new UI behavior or |
| # performance optimization to ChromeOS users first (in order to gather feedback |
| # and metrics on its use from the wild) before attempting to ship it to |
| # Windows. |
| # |
| # FIXME: Add support for global settings. |
| # FIXME: Add support for custom getters/setters. |
| |
| defaultTextEncodingName type=String |
| |
| # Sets the magnification value for validation message timer. If the |
| # magnification value is N, a validation message disappears automatically after |
| # <message length> * N / 1000 seconds. If N is equal to or less than 0, a |
| # validation message doesn't disappears automaticaly. |
| validationMessageTimerMagnification type=int, initial=50 |
| |
| # Number of pixels below which 2D canvas is rendered in software |
| # even if hardware acceleration is enabled. |
| # Hardware acceleration is useful for large canvases where it can avoid the |
| # pixel bandwidth between the CPU and GPU. But GPU acceleration comes at |
| # a price - extra back-buffer and texture copy. Small canvases are also |
| # widely used for stylized fonts. Anti-aliasing text in hardware at that |
| # scale is generally slower. So below a certain size it is better to |
| # draw canvas in software. |
| minimumAccelerated2dCanvasSize type=int, initial=257*256 |
| |
| minimumFontSize type=int, initial=0, invalidate=Style |
| minimumLogicalFontSize type=int, initial=0, invalidate=Style |
| defaultFontSize type=int, initial=0, invalidate=Style |
| defaultFixedFontSize type=int, initial=0, invalidate=Style |
| |
| caretBrowsingEnabled initial=false |
| localStorageEnabled initial=false |
| allowUniversalAccessFromFileURLs initial=true |
| allowFileAccessFromFileURLs initial=true |
| javaScriptCanAccessClipboard initial=false |
| shouldClearDocumentBackground initial=true |
| |
| textAreasAreResizable initial=false, invalidate=Style |
| |
| shrinksStandaloneImagesToFit initial=true |
| |
| deferredFiltersEnabled initial=true |
| |
| containerCullingEnabled initial=false |
| |
| # FIXME: This should really be disabled by default as it makes platforms that |
| # don't support the feature download files they can't use by. |
| # Leaving enabled for now to not change existing behavior. |
| downloadableBinaryFontsEnabled initial=true |
| |
| treatIPAddressAsDomain initial=false |
| |
| preferCompositingToLCDTextEnabled initial=false, invalidate=AcceleratedCompositing |
| |
| # 3D canvas (WebGL) support. |
| webGLEnabled initial=false |
| |
| webGLErrorsToConsoleEnabled initial=true |
| accelerated2dCanvasEnabled initial=false |
| antialiased2dCanvasEnabled initial=true |
| accelerated2dCanvasMSAASampleCount type=int, initial=0 |
| |
| asynchronousSpellCheckingEnabled initial=false |
| |
| hyperlinkAuditingEnabled initial=false |
| allowDisplayOfInsecureContent initial=true |
| allowRunningOfInsecureContent initial=true |
| # FIXME: Remove this temporary flag. See crbug.com/366483 for the target |
| # milestone. |
| allowConnectingInsecureWebSocket initial=false |
| mediaPlaybackRequiresUserGesture initial=false |
| |
| scrollAnimatorEnabled initial=true |
| |
| # Used in layout tests for gesture tap highlights. Makes the highlights square |
| # (rather than rounded) to make it possible to reftest the results. |
| mockGestureTapHighlightsEnabled initial=false |
| |
| shouldRespectImageOrientation initial=false |
| |
| # Limited use by features which behave differently depending on the input |
| # devices available. For example, the pointer and hover media queries. |
| # Note that we need to be careful when basing behavior or UI on this - |
| # just because a device is present doesn't mean the user cares about it |
| # or uses it (i.e. Chromebook Pixel users generally don't want to give up |
| # screen real estate just because they happen to have a touchscreen). |
| deviceSupportsTouch initial=false |
| deviceSupportsMouse initial=true |
| |
| # This value indicates the number of simultaneous multi-touch points supported |
| # by the currently connected screen/digitizer that supports the most points. |
| # From Pointer Events spec: |
| # http://www.w3.org/TR/pointerevents/#widl-Navigator-maxTouchPoints |
| maxTouchPoints type=int, initial=0 |
| |
| # Whether touch gestures should be "fuzzed" to nearest touch targets. |
| # It's expected that this is enabled everywhere by default, but it may be |
| # disabled for testing purposes as the algorithm is not yet perfect. |
| # crbug.com/304895 tracks removal once we're satisfied with the algorithm. |
| touchAdjustmentEnabled initial=true |
| |
| navigateOnDragDrop initial=true |
| DOMPasteAllowed initial=false |
| |
| allowCustomScrollbarInMainFrame initial=true |
| webSecurityEnabled initial=true |
| |
| # This setting adds a means to enable/disable touch initiated drag & drop. If |
| # enabled, the user can initiate drag using long press. |
| # crbug.com/304894 tracks removal once it's been enabled on all platforms. |
| touchDragDropEnabled initial=false |
| |
| unifiedTextCheckerEnabled initial=defaultUnifiedTextCheckerEnabled |
| |
| # Some apps could have a default video poster if it is not set. |
| defaultVideoPosterURL type=String |
| |
| smartInsertDeleteEnabled initial=defaultSmartInsertDeleteEnabled |
| |
| selectionIncludesAltImageText initial=false |
| |
| # Used by the android_webview to support a horizontal height auto-sizing |
| # mode. |
| forceZeroLayoutHeight initial=false, invalidate=ViewportDescription |
| |
| # Touch based text selection and editing on desktop. |
| # crbug.com/304873 tracks removal once it's been enabled on all platforms. |
| touchEditingEnabled initial=false |
| |
| # Settings for experimental desktop pinch-zoom support (with semantics |
| # optimized for large screens). Pinch-zoom generally is implemented mainly |
| # outside of blink (in the compositor) and doesn't require any settings. |
| # These settings are for an experimental modification to how pinch-zoom |
| # behaves. TODO(wjmaclean): link to design document. |
| # crbug.com/304869 tracks removal. |
| pinchVirtualViewportEnabled initial=false |
| useSolidColorScrollbars initial=true |
| pinchOverlayScrollbarThickness type=int, initial=0 |
| |
| mainFrameClipsContent initial=true |
| |
| |
| # Presumably used by tests? Unclear. |
| useWideViewport initial=true, invalidate=ViewportDescription |
| loadWithOverviewMode initial=true, invalidate=ViewportDescription |
| |
| |
| # Font scale factor for accessibility, applied as part of text autosizing. |
| accessibilityFontScaleFactor type=double, initial=1.0 |
| |
| |
| # Only set by Layout Tests. |
| mediaTypeOverride type=String, initial="screen", invalidate=MediaType |
| |
| # loadsImagesAutomatically only suppresses the network load of |
| # the image URL. A cached image will still be rendered if requested. |
| loadsImagesAutomatically initial=false, invalidate=ImageLoading |
| imagesEnabled initial=true, invalidate=ImageLoading |
| |
| viewportEnabled initial=false, invalidate=ViewportDescription |
| viewportMetaEnabled initial=false |
| |
| # Compensates for poor text legibility on mobile devices. This value is |
| # multiplied by the font scale factor when performing text autosizing of |
| # websites that do not set an explicit viewport description. |
| deviceScaleAdjustment type=double, initial=1.0 |
| |
| # This value indicates the maximum number of bytes a document is allowed |
| # to transmit in Beacons (via navigator.sendBeacon()) -- Beacons are |
| # intended to be smaller payloads transmitted as a page is unloading, not |
| # a general (one-way) network transmission API. |
| # The spec ( https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/Beacon/Overview.html ) |
| # does not proscribe an upper limit, but allows for it -- the underlying |
| # API will return 'false' in that case. |
| maxBeaconTransmission type=int, initial=65536 |
| |
| # V8 supports different types of caching. Used by V8 bindings. |
| v8CacheOptions type=V8CacheOptions, initial=V8CacheOptionsOff |
| |
| # These values are bit fields for the properties of available pointing devices |
| # and may take on multiple values (e.g. laptop with touchpad and touchscreen |
| # has pointerType coarse *and* fine). |
| availablePointerTypes type=int, initial=PointerTypeNone, invalidate=MediaQuery |
| availableHoverTypes type=int, initial=HoverTypeNone, invalidate=MediaQuery |
| |
| # These values specify properties of the user's primary pointing device only. |
| primaryPointerType type=PointerType, initial=PointerTypeNone, invalidate=MediaQuery |
| primaryHoverType type=HoverType, initial=HoverTypeNone, invalidate=MediaQuery |
| |
| accessibilityEnabled initial=false |
| inlineTextBoxAccessibilityEnabled initial=false |
