gecko-dev/widget/nsIJumpListBuilder.idl
2012-05-21 12:12:37 +01:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 nsIArray;
interface nsIMutableArray;
[scriptable, uuid(1FE6A9CD-2B18-4dd5-A176-C2B32FA4F683)]
interface nsIJumpListBuilder : nsISupports
{
/**
* JumpLists
*
* Jump lists are built and then applied. Modifying an applied jump list is not
* permitted. Callers should begin the creation of a new jump list using
* initListBuild, add sub lists using addListToBuild, then commit the jump list
* using commitListBuild. Lists are built in real-time during the sequence of
* build calls, make sure to check for errors on each individual step.
*
* The default number of allowed items in a jump list is ten. Users can change
* the number through system preferences. User may also pin items to jump lists,
* which take up additional slots. Applications do not have control over the
* number of items allowed in jump lists; excess items added are dropped by the
* system. Item insertion priority is defined as first to last added.
*
* Users may remove items from jump lists after they are commited. The system
* tracks removed items between commits. A list of these items is returned by
* a call to initListBuild. nsIJumpListBuilder does not filter entries added that
* have been removed since the last commit. To prevent repeatedly adding entries
* users have removed, applications are encoraged to track removed items
* internally.
*
* Each list is made up of an array of nsIJumpListItem representing items
* such as shortcuts, links, and separators. See nsIJumpListItem for information
* on adding additional jump list types.
*/
/**
* List Types
*/
/**
* Task List
*
* Tasks are common actions performed by users within the application. A task
* can be represented by an application shortcut and associated command line
* parameters or a URI. Task lists should generally be static lists that do not
* change often, if at all - similar to an application menu.
*
* Tasks are given the highest priority of all lists when space is limited.
*/
const short JUMPLIST_CATEGORY_TASKS = 0;
/**
* Recent or Frequent list
*
* Recent and frequent lists are based on Window's recent document lists. The
* lists are generated automatically by Windows. Applications that use recent
* or frequent lists should keep document use tracking up to date by calling
* the SHAddToRecentDocs shell api.
*/
const short JUMPLIST_CATEGORY_RECENT = 1;
const short JUMPLIST_CATEGORY_FREQUENT = 2;
/**
* Custom Lists
*
* Custom lists can be made up of tasks, links, and separators. The title of
* of the list is passed through the optional string parameter of addBuildList.
*/
const short JUMPLIST_CATEGORY_CUSTOMLIST = 3;
/**
* Indicates whether jump list taskbar features are supported by the current
* host.
*/
readonly attribute short available;
/**
* JumpList management
*
* @throw NS_ERROR_NOT_AVAILABLE on all calls if taskbar functionality
* is not supported by the operating system.
*/
/**
* Indicates if a commit has already occurred in this session.
*/
readonly attribute boolean isListCommitted;
/**
* The maximum number of jump list items the current desktop can support.
*/
readonly attribute short maxListItems;
/**
* Initializes a jump list build and returns a list of items the user removed
* since the last time a jump list was committed. Removed items can become state
* after initListBuild is called, lists should be built in single-shot fasion.
*
* @param removedItems
* A list of items that were removed by the user since the last commit.
*
* @returns true if the operation completed successfully.
*/
boolean initListBuild(in nsIMutableArray removedItems);
/**
* Adds a list and if required, a set of items for the list.
*
* @param aCatType
* The type of list to add.
* @param items
* An array of nsIJumpListItem items to add to the list.
* @param catName
* For custom lists, the title of the list.
*
* @returns true if the operation completed successfully.
*
* @throw NS_ERROR_INVALID_ARG if incorrect parameters are passed for
* a particular category or item type.
* @throw NS_ERROR_ILLEGAL_VALUE if an item is added that was removed
* since the last commit.
* @throw NS_ERROR_UNEXPECTED on internal errors.
*/
boolean addListToBuild(in short aCatType, [optional] in nsIArray items, [optional] in AString catName);
/**
* Aborts and clears the current jump list build.
*/
void abortListBuild();
/**
* Commits the current jump list build to the Taskbar.
*
* @returns true if the operation completed successfully.
*/
boolean commitListBuild();
/**
* Deletes any currently applied taskbar jump list for this application.
* Common uses would be the enabling of a privacy mode and uninstallation.
*
* @returns true if the operation completed successfully.
*
* @throw NS_ERROR_UNEXPECTED on internal errors.
*/
boolean deleteActiveList();
};