/// <summary>
/// Updates internal pin data based on already updated PowerItem
/// </summary>
/// <param name="item">PowerItem, whose IsPinned property is already set to desired value</param>
public static void PinUnpin(PowerItem item)
{
bool update = false;
if (item.IsPinned && !PinList.Contains(item.Argument))
{//Item was pinned
PinList.Add(item.Argument);
update = true;
}
else if ((!item.IsPinned) && PinList.Contains(item.Argument))
{//Item was unpinned
PinList.Remove(item.Argument);
update = true;
}
//else means state of item may changed but already reflected in pin list
if (!update)
{
return;
}
lock (LastList)
{
//Calculate the new index
var temp = new List <MfuElement>();
LastList.ForEach(m => temp.Add(m.Clone()));
temp.ApplyFiltersAndSort();
//Destination index. When moving data from LastList to StartMFU, it is truncated to contain
//only 20 items with launchCount==0. So it is possible that when you unpin an element,
//it's calculated position in scope of LastList will be more that StartMFU contains.
//This is the fix for the problem.
var tIdx = Math.Min(temp.FindIndex(mfu => mfu.Arg == item.Argument), StartMfu.Count - 1);
StartMfu.Move(StartMfu.IndexOf(item), tIdx);
}
}
/// <summary>
/// Adds an exclusion that hides MFU items that fall under it.
/// Exclusions work when MFU is in P8 mode.
/// </summary>
/// <param name="exclusion">text to exclude from display.
/// When tested for match, used with ** on both sides</param>
public static void AddExclusion(PowerItem exclusion)
{
ExclList.Add(new StringWrapper {
Value = exclusion.Argument.ToLower()
});
UpdateStartMfuSync();
}
/// <summary>
/// Removes item from user list.
/// </summary>
/// <param name="item">Item to remove. This method is called from UI, which converts
/// the string paths (potentially not mapped to PowerItem originally) to new PowerItems
/// when needed, so that's why there is no overload to remove string from the list.</param>
public static void RemoveCustom(PowerItem item)
{
lock (UserList)
{
UserList.Remove(PowerItemTree.GetResolvedArgument(item));
_writeUserList = true;
UpdateStartMfuSync();
}
}
/// <summary>
/// Runs the class. Starts the drive watcher thread and saves passed parameters
/// </summary>
/// <param name="changedHandler">Delegate to be called when a file or folder is changed/created/deleted in the system</param>
/// <param name="renamedHandler">Dalegate to be called when a file or folder is renamed in the system</param>
/// <param name="drivesRoot">PowerItem, under which drives list is located</param>
public static void Init(FileSystemEventHandler changedHandler, RenamedEventHandler renamedHandler, PowerItem drivesRoot)
{
_fileChanged = changedHandler;
_fileRenamed = renamedHandler;
_drivesRoot = drivesRoot;
SettingsManager.WatchRemovablesChanged += SettingsManagerOnWatchRemovablesChanged;
Util.ForkStart(Worker, "DriveWatchThread");
Util.ForkStart(FsWorker, "File system events dequeuer");
}
/// <summary>
/// Gets a string that represents a kind of tag for icon for PowerItem passed
/// </summary>
/// <param name="item">PowerItem which we need icon for</param>
/// <param name="resolved">Resolved argument for item.</param>
private static string GetObjectDescriptor(PowerItem item, string resolved)
{
if (item.IsFolder || item.IsSpecialObject)
{
return(item.NonCachedIcon ? resolved : "*");
}
var rl = resolved.ToLower();
return(rl.EndsWith(".lnk") ||
rl.EndsWith(".exe") ||
rl.EndsWith(".cpl")
? resolved : Path.GetExtension(resolved));
}
public static int MoveCustomListItem(PowerItem which, PowerItem where)
{
lock (LastList)
{
//1. Change order in UserList
var argFrom = PowerItemTree.GetResolvedArgument(which);
var argTo = PowerItemTree.GetResolvedArgument(@where);
int idxFrom = UserList.IndexOf(argFrom);
int idxTo = UserList.IndexOf(argTo);
UserList.RemoveAt(idxFrom);
UserList.Insert(idxTo + idxFrom > idxTo ? 1 : 0, argFrom);
//2. Update LastList
LastList.Clear();
GetMfuFromCustomData().ForEach(m => LastList.Add(m.Clone()));
//3. Change order in MfuList - with respect to pinning
StartMfu.Move(StartMfu.IndexOf(which), StartMfu.IndexOf(where));
return(StartMfu.IndexOf(which));
}
}
public static void Add2Custom(PowerItem item, string fullPath = null)
{
var arg = item == null ? fullPath : PowerItemTree.GetResolvedArgument(item);
var idx = UserList.IndexOf(arg);
if (idx == UserList.Count - 1 && UserList.Count > 0) //Already in list and top item
{
return;
}
if (idx != -1) //Already in list, move to top
{
UserList.RemoveAt(idx);
}
UserList.Add(arg); //Including case where item not in list
if (SettingsManager.Instance.MfuIsCustom && fullPath == null)
{
UpdateStartMfuSync(); //Refresh
}
}
/// <summary>
/// Synchronous getter of an icon for PowerItem
/// </summary>
/// <param name="item">PowerItem we need icon extracted for</param>
/// <param name="iconNeeded">type of icon needed - small or large</param>
/// <returns>ImageContainer with ImageSources extracted. Can be null.</returns>
public static ImageContainer GetImageContainerSync(PowerItem item, API.Shgfi iconNeeded)
{
Log.Raw("begin>>>>>>>>>>>>>>>", item.FriendlyName);
//Checking if there's cached ImageContainer
string resolvedArg, descr;
try
{
resolvedArg = PowerItemTree.GetResolvedArgument(item);
descr = GetObjectDescriptor(item, resolvedArg);
}
catch (IOException)
{
return(null);
}
lock (Cache)
{
var container = (ImageContainer)(Cache.ContainsKey(descr) ? Cache[descr] : null);
Log.Fmt("arg<={0}, descr<={1}, container<={2}", resolvedArg, descr,
(container != null ? "not " : "") + "null");
if (container == null) //No cached instance
{
container = new ImageContainer(resolvedArg, descr, item.SpecialFolderId);
Cache.Add(descr, container);
if (iconNeeded == API.Shgfi.SMALLICON)
{
container.ExtractSmall();
}
else
{
container.ExtractLarge();
}
}
#if DEBUG
Log.Raw("end<<<<<<<<<<<<<<", item.FriendlyName);
#endif
return(container);
}
}
/// <summary>
/// Returns string, of a Path kind, that can be passed to a system, and will
/// represent the passed PowerItem. Depending on Caller Name, may invoke
/// automatic Link resolution for Link PowerItems. "Denamespaces" the
/// passed ControlPanel item returning open command for it.
/// </summary>
/// <param name="item">The PowerItem which has to be located/properties for
/// which have to be shown.</param>
/// <param name="callerName">String, the name of clicked menu item, hendler
/// of which is calling this method. Recognizes "AppOpenTargetContainer" and
/// "AppShowTargetProperties".</param>
/// <returns>Path to binary FS object that represents the passed PowerItem or
/// the target of its link.</returns>
private static string Args4PropsAndCont(PowerItem item, string callerName)
{
string arg = null;
if (item.IsControlPanelChildItem)
{
var executor = Util.GetOpenCommandForClass(item.Argument);
if (executor != null && File.Exists(executor.Item1))
{
arg = executor.Item1;
}
}
if (arg == null)
{
arg = PowerItemTree.GetResolvedArgument(item);
}
if (item.IsLink && (callerName == "AppOpenTargetContainer" ||
callerName == "AppShowTargetProperties"))
{
arg = item.ResolvedLink;
}
return(arg);
}
/// <summary>
/// Starts asynchronous extraction of ImageContainer for PowerItem
/// </summary>
/// <param name="item">PowerItem we need icon extracted for</param>
/// <param name="iconNeeded">type of icon needed - small or large</param>
/// <returns>Always null</returns>
public static ImageContainer GetImageContainer(PowerItem item, API.Shgfi iconNeeded)
{
ImageQueue.Enqueue(new Tuple <PowerItem, API.Shgfi>(item, iconNeeded));
return(null);
}
//Same as above but inSync
private static void GetRecentListForSync(PowerItem item)
{
string fsObject;
try
{
fsObject = PowerItemTree.GetResolvedArgument(item);
}
catch (IOException) //No money no honey (no object to get JL for)
{
return;
}
IEnumerable <string> jl = null;
var p8R = GetP8Recent(item.IsLink ? item.ResolvedLink : fsObject); //P8 internal JL
if (Util.OsIs.SevenOrMore) //System JL
{
var recent = GetJumpList(fsObject, API.ADLT.RECENT);
var frequent = GetJumpList(fsObject, API.ADLT.FREQUENT);
if (recent != null && frequent != null)
{
jl = recent.Union(frequent);
}
else
{
jl = recent ?? frequent;
}
}
if (jl != null && p8R != null) //merge everything
{
jl = jl.Union(p8R);
}
else
{
jl = jl ?? p8R;
}
if (jl == null)
{
return; //No jump list discovered -> nothing to do
}
jl = jl.Distinct() //No duplicates
.Where(x => x.StartsWith("::") || File.Exists(x)) //No obsoletes
.Take(25); //Not too many
foreach (var arg in jl)
{
var local = arg;
Util.Post(() =>
item.JumpList.Add(local.StartsWith("::")
? new PowerItem
{
Argument = local.Substring(2),
Parent = item,
SpecialFolderId = API.Csidl.POWER8JLITEM
}
: new PowerItem
{
Argument = local,
Parent = item
}
));
}
}
/// <summary>
/// Updates JumpList of PowerItem passed asynchronously. JumpList is being built based on
/// - system Frequent list (W7+);
/// - system Recent list (W7+);
/// - Power8 internal jumplist (WXP+);
/// </summary>
/// <param name="item">the PowerItem whose JumpList may be updated</param>
public static void GetRecentListFor(PowerItem item)
{
Util.ForkPool(() => GetRecentListForSync(item), "MFU worker for " + item.Argument);
}