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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsISupports.idl"
interface nsIStringEnumerator;
/**
* The XUL store is used to store information related to a XUL document/application.
* Typically it is used to store the persisted state for the document, such as
* window location, toolbars that are open and nodes that are open and closed in a tree.
*
* The data is serialized to [profile directory]/xulstore.json
*/
[scriptable, uuid(987c4b35-c426-4dd7-ad49-3c9fa4c65d20)]
interface nsIXULStore: nsISupports
{
/**
* Sets a value in the store.
*
* @param doc - document URI
* @param id - identifier of the node
* @param attr - attribute to store
* @param value - value of the attribute
*/
void setValue(in AString doc, in AString id, in AString attr, in AString value);
/**
* Returns true if the store contains a value for attr.
*
* @param doc - URI of the document
* @param id - identifier of the node
* @param attr - attribute
*/
bool hasValue(in AString doc, in AString id, in AString attr);
/**
* Retrieves a value in the store, or an empty string if it does not exist.
*
* @param doc - document URI
* @param id - identifier of the node
* @param attr - attribute to retrieve
*
* @returns the value of the attribute
*/
AString getValue(in AString doc, in AString id, in AString attr);
/**
* Removes a value in the store.
*
* @param doc - document URI
* @param id - identifier of the node
* @param attr - attribute to remove
*/
void removeValue(in AString doc, in AString id, in AString attr);
/**
* Iterates over all of the ids associated with a given document uri that
* have stored data.
*
* @param doc - document URI
*/
nsIStringEnumerator getIDsEnumerator(in AString doc);
/**
* Iterates over all of the attributes associated with a given document uri
* and id that have stored data.
*
* @param doc - document URI
* @param id - identifier of the node
*/
nsIStringEnumerator getAttributeEnumerator(in AString doc, in AString id);
};
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