$sceDelegate
service in module ng
Description
$sceDelegate is a service that is used by the $sce service to provide Strict Contextual Escaping (SCE) services to AngularJS.
Typically, you would configure or override the $sceDelegate instead of the $sce service to customize the way Strict Contextual Escaping works in AngularJS. This is because, while the $sce provides numerous shorthand methods, etc., you really only need to override 3 core functions (trustAs, getTrusted and valueOf) to replace the way things work because $sce delegates to $sceDelegate for these operations.
Refer $sceDelegateProvider to configure this service.
The default instance of $sceDelegate should work out of the box with little pain. While you can override it completely to change the behavior of $sce, the common case would involve configuring the $sceDelegateProvider instead by setting your own whitelists and blacklists for trusting URLs used for loading AngularJS resources such as templates. Refer $sceDelegateProvider.resourceUrlWhitelist and $sceDelegateProvider.resourceUrlBlacklist
Methods
Takes the result of a $sceDelegate.trustAs call and returns the originally supplied value if the queried context type is a supertype of the created type. If this condition isn't satisfied, throws an exception.
Parameters
ParamTypeDetailstypestring
The kind of context in which this value is to be used.
maybeTrusted*
The result of a prior $sceDelegate.trustAs call.
Returns
The value the was originally provided to $sceDelegate.trustAs if valid in this context. Otherwise, throws an exception.
Returns an object that is trusted by angular for use in specified strict contextual escaping contexts (such as ng-html-bind-unsafe, ng-include, any src attribute interpolation, any dom event binding attribute interpolation such as for onclick, etc.) that uses the provided value. See $sce for enabling strict contextual escaping.
Parameters
ParamTypeDetailstypestring
The kind of context in which this value is safe for use. e.g. url, resourceUrl, html, js and css.
value*
The value that that should be considered trusted/safe.
Returns
A value that can be used to stand in for the provided value in places where Angular expects a $sce.trustAs() return value.
If the passed parameter had been returned by a prior call to $sceDelegate.trustAs, returns the value that had been passed to $sceDelegate.trustAs.
If the passed parameter is not a value that had been returned by $sceDelegate.trustAs, returns it as-is.
Parameters
ParamTypeDetailsvalue*
The result of a prior $sceDelegate.trustAs call or anything else.
Returns
The value the was originally provided to $sceDelegate.trustAs if value is the result of such a call. Otherwise, returns value unchanged.
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