264 lines
12 KiB
Plaintext
264 lines
12 KiB
Plaintext
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISupports.idl"
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interface nsIVariant;
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interface nsIPropertyBag2;
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interface nsIContentURIGrouper;
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interface nsILoadContext;
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interface mozIStorageConnection;
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[scriptable, uuid(43635c53-b445-4c4e-8cc5-562697299b55)]
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interface nsIContentPrefObserver : nsISupports
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{
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/**
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* Called when a content pref is set to a different value.
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*
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* @param aGroup the group to which the pref belongs, or null
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* if it's a global pref (applies to all sites)
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* @param aName the name of the pref that was set
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* @param aValue the new value of the pref
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* @param aIsPrivate an optional flag determining whether the
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* original context is private or not
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*/
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void onContentPrefSet(in AString aGroup,
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in AString aName,
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in nsIVariant aValue,
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[optional] in boolean aIsPrivate);
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/**
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* Called when a content pref is removed.
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*
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* @param aGroup the group to which the pref belongs, or null
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* if it's a global pref (applies to all sites)
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* @param aName the name of the pref that was removed
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* @param aIsPrivate an optional flag determining whether the
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* original context is private or not
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*/
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void onContentPrefRemoved(in AString aGroup,
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in AString aName,
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[optional] in boolean aIsPrivate);
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};
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[scriptable, function, uuid(c1b3d6df-5373-4606-8494-8bcf14a7fc62)]
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interface nsIContentPrefCallback : nsISupports
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{
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void onResult(in nsIVariant aResult);
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};
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/**
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* @deprecated Please use nsIContentPrefService2 instead.
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*/
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[scriptable, uuid(e3f772f3-023f-4b32-b074-36cf0fd5d414)]
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interface nsIContentPrefService : nsISupports
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{
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/**
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* Get a pref.
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*
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* Besides the regular string, integer, boolean, etc. values, this method
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* may return null (nsIDataType::VTYPE_EMPTY), which means the pref is set
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* to NULL in the database, as well as undefined (nsIDataType::VTYPE_VOID),
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* which means there is no record for this pref in the database.
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*
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* This method can be called from content processes in electrolysis builds.
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* We have a whitelist of values that can be read in such a way.
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*
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* @param aGroup the group for which to get the pref, as an nsIURI
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* from which the hostname will be used, a string
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* (typically in the format of a hostname), or null
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* to get the global pref (applies to all sites)
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* @param aName the name of the pref to get
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* @param aPrivacyContext
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* a context from which to determine the privacy status
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* of the pref (ie. whether to search in memory or in
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* permanent storage for it), obtained from a relevant
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* window or channel.
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* @param aCallback an optional nsIContentPrefCallback to receive the
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* result. If desired, JavaScript callers can instead
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* provide a function to call upon completion
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*
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* @returns the value of the pref
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* @throws NS_ERROR_ILLEGAL_VALUE if aGroup is not a string, nsIURI, or null
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* @throws NS_ERROR_ILLEGAL_VALUE if aName is null or an empty string
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*/
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nsIVariant getPref(in nsIVariant aGroup, in AString aName,
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in nsILoadContext aPrivacyContext,
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[optional] in nsIContentPrefCallback aCallback);
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/**
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* Set a pref.
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*
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* This method can be called from content processes in electrolysis builds.
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* We have a whitelist of values that can be set in such a way.
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*
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* @param aGroup the group for which to set the pref, as an nsIURI
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* from which the hostname will be used, a string
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* (typically in the format of a hostname), or null
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* to set the global pref (applies to all sites)
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* @param aName the name of the pref to set
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* @param aValue the new value of the pref
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* @param aPrivacyContext
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* a context from which to determine the privacy status
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* of the pref (ie. whether to store it in memory or in
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* permanent storage), obtained from a relevant
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* window or channel.
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* @throws NS_ERROR_ILLEGAL_VALUE if aGroup is not a string, nsIURI, or null
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* @throws NS_ERROR_ILLEGAL_VALUE if aName is null or an empty string
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*/
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void setPref(in nsIVariant aGroup, in AString aName, in nsIVariant aValue, in nsILoadContext aPrivacyContext);
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/**
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* Check whether or not a pref exists.
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*
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* @param aGroup the group for which to check for the pref, as an nsIURI
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* from which the hostname will be used, a string
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* (typically in the format of a hostname), or null
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* to check for the global pref (applies to all sites)
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* @param aName the name of the pref to check for
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* @param aPrivacyContext
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* a context from which to determine the privacy status
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* of the pref (ie. whether to search in memory or in
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* permanent storage for it), obtained from a relevant
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* window or channel.
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* @throws NS_ERROR_ILLEGAL_VALUE if aGroup is not a string, nsIURI, or null
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* @throws NS_ERROR_ILLEGAL_VALUE if aName is null or an empty string
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*/
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boolean hasPref(in nsIVariant aGroup, in AString aName, in nsILoadContext aContext);
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/**
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* Check whether or not the value of a pref (or its non-existance) is cached.
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*
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* @param aGroup the group for which to check for the pref, as an nsIURI
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* from which the hostname will be used, a string
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* (typically in the format of a hostname), or null
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* to check for the global pref (applies to all sites)
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* @param aName the name of the pref to check for
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* @param aPrivacyContext
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* a context from which to determine the privacy status
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* of the pref (ie. whether to search in memory or in
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* permanent storage for it), obtained from a relevant
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* window or channel.
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* @throws NS_ERROR_ILLEGAL_VALUE if aGroup is not a string, nsIURI, or null
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* @throws NS_ERROR_ILLEGAL_VALUE if aName is null or an empty string
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*/
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boolean hasCachedPref(in nsIVariant aGroup, in AString aName, in nsILoadContext aContext);
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/**
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* Remove a pref.
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*
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* @param aGroup the group for which to remove the pref, as an nsIURI
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* from which the hostname will be used, a string
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* (typically in the format of a hostname), or null
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* to remove the global pref (applies to all sites)
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* @param aName the name of the pref to remove
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* @param aPrivacyContext
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* a context from which to determine the privacy status
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* of the pref (ie. whether to search in memory or in
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* permanent storage for it), obtained from a relevant
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* window or channel.
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* @throws NS_ERROR_ILLEGAL_VALUE if aGroup is not a string, nsIURI, or null
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* @throws NS_ERROR_ILLEGAL_VALUE if aName is null or an empty string
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*/
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void removePref(in nsIVariant aGroup, in AString aName, in nsILoadContext aContext);
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/**
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* Remove all grouped prefs. Useful for removing references to the sites
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* the user has visited when the user clears their private data.
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*
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* @param aPrivacyContext
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* a context from which to determine the privacy status
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* of the pref (ie. whether to remove prefs in memory or
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* in permanent storage), obtained from a relevant
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* window or channel.
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*/
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void removeGroupedPrefs(in nsILoadContext aContext);
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/**
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* Remove all prefs with the given name.
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*
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* @param aName the setting name for which to remove prefs
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* @param aPrivacyContext
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* a context from which to determine the privacy status
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* of the prefs (ie. whether to remove prefs in memory or
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* in permanent storage), obtained from a relevant
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* window or channel.
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* @throws NS_ERROR_ILLEGAL_VALUE if aName is null or an empty string
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*/
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void removePrefsByName(in AString aName, in nsILoadContext aContext);
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/**
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* Get the prefs that apply to the given site.
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*
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* @param aGroup the group for which to retrieve prefs, as an nsIURI
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* from which the hostname will be used, a string
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* (typically in the format of a hostname), or null
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* to get the global prefs (apply to all sites)
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* @param aPrivacyContext
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* a context from which to determine the privacy status
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* of the pref (ie. whether to search for prefs in memory
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* or in permanent storage), obtained from a relevant
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* window or channel.
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*
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* @returns a property bag of prefs
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* @throws NS_ERROR_ILLEGAL_VALUE if aGroup is not a string, nsIURI, or null
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*/
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nsIPropertyBag2 getPrefs(in nsIVariant aGroup, in nsILoadContext aContext);
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/**
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* Get the prefs with the given name.
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*
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* @param aName the setting name for which to retrieve prefs
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* @param aPrivacyContext
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* a context from which to determine the privacy status
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* of the pref (ie. whether to search for prefs in memory
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* or in permanent storage), obtained from a relevant
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* window or channel.
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*
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* @returns a property bag of prefs
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* @throws NS_ERROR_ILLEGAL_VALUE if aName is null or an empty string
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*/
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nsIPropertyBag2 getPrefsByName(in AString aName, in nsILoadContext aContext);
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/**
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* Add an observer.
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*
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* @param aName the setting to observe, or null to add
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* a generic observer that observes all settings
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* @param aObserver the observer to add
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*/
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void addObserver(in AString aName, in nsIContentPrefObserver aObserver);
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/**
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* Remove an observer.
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*
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* @param aName the setting being observed, or null to remove
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* a generic observer that observes all settings
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* @param aObserver the observer to remove
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*/
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void removeObserver(in AString aName, in nsIContentPrefObserver aObserver);
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/**
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* The component that the service uses to determine the groups to which
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* URIs belong. By default this is the "hostname grouper", which groups
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* URIs by full hostname (a.k.a. site).
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*/
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readonly attribute nsIContentURIGrouper grouper;
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/**
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* The database connection to the content preferences database.
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* Useful for accessing and manipulating preferences in ways that are caller-
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* specific or for which there is not yet a generic method, although generic
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* functionality useful to multiple callers should generally be added to this
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* unfrozen interface. Also useful for testing the database creation
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* and migration code.
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*/
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readonly attribute mozIStorageConnection DBConnection;
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};
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%{C++
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// The contractID for the generic implementation built in to xpcom.
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#define NS_CONTENT_PREF_SERVICE_CONTRACTID "@mozilla.org/content-pref/service;1"
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%}
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