public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (parameter != null && (string)parameter == "pin")
{
return((bool?)value == true ? Resources.Str_Unpin : Resources.Str_Pin);
}
var pi = value as PowerItem;
if (pi == null)
{
return(Resources.Err_CantGetTooltip);
}
if (!pi.IsNotPureControlPanelFlowItem)
{
return(Resources.Str_CplElement);
}
if (pi.IsSpecialObject)
{
var cmd = Util.GetOpenCommandForClass(pi.Argument);
if (cmd == null)
{
return(pi.FriendlyName + Resources.Str_Library);
}
return(cmd.Item1);
}
try
{
return(PowerItemTree.GetResolvedArgument(pi));
}
catch (IOException)
{
return(Resources.Err_CantGetTooltip);
}
}
//------------------------------------------
/// <summary>
/// Starts or cancels asynchronous search and sets the data source for MFU list
/// depending on text in search field
/// </summary>
private void SearchBoxTextChanged(object sender, TextChangedEventArgs e)
{
PowerItemTree.SearchTreeCancel(); //first always cancel the current search
var q = SearchBox.Text.Trim().ToLowerInvariant(); //ignore spaces an case
if (!String.IsNullOrWhiteSpace(q) && q.Length > 1) //we can probably start search
{
//Clear selection always before (re)starting search or preparing the WebSearch.
//For the Search this will help P8 to handle Enter properly, because sometimes,
//if you're REALLY fast, UI is repainted BEFORE Items collection is being actually
//updated, along with SelectedItem, so you see and try launching item different
//from one being actually launched.
dataGrid.SelectedIndex = -1;
dataGrid.SelectedItem = null;
if (q[1] != ' ') //not web search
{
dataGrid.ItemsSource = _searchView; //switch MFU list to search results and kisk search invoker
var t = PowerItemTree.SearchTreeCancel();
Util.ForkPool(() => PowerItemTree.SearchTree(q, _searchData, ExpandGroup, t), "Search root for " + q);
}
//else{} //web search - no actions from our side here, wait for enter
}
else //no search
{
dataGrid.ItemsSource = MfuItems; //show MFU list
SearchMarker.Visibility = Visibility.Hidden; //Hide search marker if any
}
}
/// <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>
/// Safely invokes passed item and hides the butonstack - as it is done for the grid
/// Used in other code as well, like in the search bar handlers, because they behave
/// like invoking something from the grid.
/// </summary>
/// <param name="item">Grid's selected item (usually)</param>
private void InvokeFromDataGrid(PowerItem item)
{
try
{
PowerItemTree.SearchTreeCancel(); //if search thread is really slow compared to this UI one,
//the following call may execute before search was finished, and MFUList may receive
//"process launched" event and update itself, which will cause InvalidOperationException
item.Invoke();
}
catch (Exception ex)
{
Util.DispatchCaughtException(ex);
}
Hide();
}
/// <summary>
/// When not null value is passed as argument, tries to perform the command
/// related to the argument passed via the system Verb engine. Works for
/// non-folders.<br/>
/// If RunAsAdmin verb is passed and this PowerItem instance is Folder, flag
/// is converted to boolean true instructing ResolveItem() that, if available,
/// Common start menu folder should be used instead of user one. This is not
/// used for non-folder items and won't work for folders not under Start menu,
/// even there's corresponding CSIDLs.<br/>
/// If null value is passed, then it simply runs the PowerItem. Consult Invoke()
/// xml-doc on how this can be performed.
/// </summary>
/// <param name="verb">One from <code>API.SEVerbs</code> constants, or null/empty
/// string, which means "no command"</param>
public void InvokeVerb(string verb)
{
//Shell namespaces and Power8 classes
if (SpecialFolderId != API.Csidl.INVALID)
{
if (string.IsNullOrEmpty(Argument))
{
Util.DisplaySpecialFolder(SpecialFolderId);
return;
}
if (SpecialFolderId == API.Csidl.POWER8CLASS)
{
Util.InstanciateClass(Argument);
return;
}
if (SpecialFolderId == API.Csidl.POWER8IMMERSIVE)
{
Util.TryInvokeAppUserModelId(Argument);
return;
}
}
//All the other stuff: FS-resolvable
var psi = PowerItemTree.ResolveItem(this, IsFolder && verb == API.SEVerbs.RunAsAdmin);
if (!string.IsNullOrEmpty(verb) && IsFile) //pass verb
{
psi.Verb = verb;
}
if (psi.Arguments.StartsWith("\\\\")) //network items may be only directly launched
{
psi.UseShellExecute = false;
}
try
{
Util.CreateProcess(startInfo: psi);
}
catch (Win32Exception w32E) //Any exception will be handled really out of here, but we
{ //shall report proper error
if (w32E.NativeErrorCode == 0x483) //1155, e.g. when doing "runas" on "*.hlp"
{
psi.Verb = null;
Util.CreateProcess(startInfo: psi);
throw new InvalidProgramException(Resources.Err_StartAsAdminFailed + w32E.Message);
}
throw;
}
}
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>
/// Handles search event raised by Windows Serach threads.
/// Works with UI thus invokes Main Dispatcher for real work.
/// </summary>
private void HandleSearch(object sender, PowerItemTree.WinSearchEventArgs args)
{
Util.Send(() =>
{
if (args.SearchCompleted)
{
SearchMarker.Visibility = Visibility.Hidden;
ExpandGroup(args.Root, args.Token);
}
else
{
SearchMarker.Visibility = Visibility.Visible;
}
});
}
//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>
/// This is the part of FriendlyName getter. Executes heavy part of FriendlyName evaluation either
/// synchronously or in async way, depending on how it's called.
/// </summary>
/// <returns>The PI's partially evaluated FriendlyName, which can be also empty string or even null.
/// Assign the value returned to the FriendlyName. When use this method asynchronously, always Post()
/// or Send() the assignment.</returns>
private string TryExtractFriendlyNameAsync()
{
string fName = null;
if (ResourceIdString != null) //Return based on resId
{
fName = Util.ResolveStringResource(ResourceIdString);
if (!string.IsNullOrEmpty(fName))
{
return(fName);
}
ResourceIdString = null; //Operation failed somewhere, resourceId is invalid
}
if (SpecialFolderId != API.Csidl.INVALID) //Resolve for a special folder, if any
{
if (SpecialFolderId == API.Csidl.POWER8JLITEM) //For jump list item <IShellLink>
{
if (Argument.StartsWith("/n,::")) //in part., for explorer shell NSs
{
fName = Util.ResolveLongPathOrDisplayName(Argument.Substring(3));
}
if (string.IsNullOrEmpty(fName)) //Otherwise, set display name to link target
{
fName = Argument;
}
if (!string.IsNullOrEmpty(fName) && fName.Length > 60)
{ //finally, if it is too long, cut it from the middle
fName = fName.Substring(0, 28) +
"…" +
fName.Substring(fName.Length - 28, 28);
}
}
else //for all the other special folders
{
fName = Util.ResolveSpecialFolderName(SpecialFolderId);
}
if (!string.IsNullOrEmpty(fName))
{
return(fName);
}
}
//If no SpecialFolderId or resolving failed
if (Parent == null) //main menu
{ //this basically should never happen since the moment when desktop.ini parsing is implemented
return(Resources.Str_AllPrograms);
}
//For Recent list...
if (IsMfuChild) //so it must have ARGUMENT...
{ //...for either link or exe
if (IsLink || Argument.EndsWith(".exe", StringComparison.InvariantCultureIgnoreCase))
{
var container = PowerItemTree.SearchStartMenuItemSyncFast(Argument); //yeah, "fast"... :(
if (container != null)
{
fName = container.FriendlyName;
}
if (string.IsNullOrEmpty(fName) /*(still)*/ && !IsLink)
{//get file version info table and extract data from there. Costly but provides valuable results.
try
{
var ver = FileVersionInfo.GetVersionInfo(PowerItemTree.GetResolvedArgument(this));
if (!string.IsNullOrWhiteSpace(ver.FileDescription)) //try description, if not fallback to...
{
fName = ver.FileDescription;
}
else if (!string.IsNullOrWhiteSpace(ver.ProductName)) //...Product. This is specifically for...
{
fName = ver.ProductName; //...NFS.Run and the kind of.
}
}
catch (IOException) //It is possible that item existing in the last shown list is not available...
{} //anymore. This is a rare situation - so try-catch seems more logical than Exists() call.
}
}
else if (IsControlPanelItemInFact)
{
PowerItemTree.CplDone.WaitOne(); //we don't want InvalidOperationExceptions accessing Items...
var same = PowerItemTree.ControlPanelRoot.Items.FirstOrDefault(
i => string.Equals(i.Argument, Argument, StringComparison.OrdinalIgnoreCase));
if (same != null) //if there's such item
{
fName = same.FriendlyName; //simply return it's FriendlyName
}
}
}
return(fName);
}
//------------------------------------------
/// <summary>
/// Update Control Panel menu button when ControlPanelByCategoryChanged event occured.
/// </summary>
void OnControlPanelByCategoryChanged(object sender, EventArgs e)
{
SpecialItems.Remove("ControlPanel");
PowerItemTree.RefreshControlPanelRoot();
ControlPanel.Item = GetSpecialItems("ControlPanel");
}
/// <summary>
/// Handles specific key presses when focus is in Data grid:
/// - Enter starts the selected PowerItem, if any;
/// - Tab/Shift-Tab moves focus to correct controls so that grid doesn't
/// hold focus inside. There are arrow buttons for that.
/// </summary>
private void DataGridPreviewKeyDown(object sender, KeyEventArgs e)
{
var pi = dataGrid.SelectedItem as PowerItem;
switch (e.Key)
{
case Key.Enter:
if (pi != null && !pi.AreItemsDisplayed)
{
e.Handled = true;
InvokeFromDataGrid(pi);
}
break;
case Key.Tab:
e.Handled = true; //todo: check why CTRL is tested differently in other places
if (pi != null && (Keyboard.IsKeyDown(Key.LeftCtrl) || Keyboard.IsKeyDown(Key.RightCtrl)))
{ //CTRL+Tab >> put path to item to search bar
var t = "\"" + PowerItemTree.GetResolvedTarget(pi) + "\" ";
SearchBox.Text = t;
SearchBox.Focus();
SearchBox.CaretIndex = t.Length;
}
else if (Keyboard.IsKeyDown(Key.LeftShift) || Keyboard.IsKeyDown(Key.RightShift))
{
AllItemsMenuRoot.Focus(); //SHIFT+Tab >> focus backwards
}
else
{
SearchBox.Focus(); //Tab >> focus forwards
}
break;
case Key.Up:
case Key.Down:
if (pi != null && pi.AreItemsDisplayed)
{
return; //Do not handle keys when JL is in focus
}
//Not in search view when we press Up/Down
if ((System.Windows.Forms.Control.ModifierKeys & Keys.Control) > 0 && dataGrid.ItemsSource.Equals(MfuItems))
{ //with CTRL
if (dataGrid.SelectedIndex > -1 && SettingsManager.Instance.MfuIsCustom)
{ //...and we have something selected, and we're in custom MFU...
var si = dataGrid.SelectedItem as PowerItem; //...and more than 1 in (un) pinned group
if (si != null && MfuItems.Count(m => m.IsPinned == si.IsPinned) > 1)
{ //=> move item itself
e.Handled = true;
dataGrid.Focus(); //.Net 4.5 hack. Datagrid in .Net4.5 doesn't switch focus to new row
int increment = (e.Key == Key.Up ? -1 : 1);
int i = dataGrid.SelectedIndex;
PowerItem target = null;
do //search for nearest item with same pinning state
{
i += increment;
if (i == -1)
{
i = MfuItems.Count - 1;
}
else if (i == MfuItems.Count)
{
i = 0;
}
if (MfuItems[i].IsPinned == si.IsPinned)
{
target = MfuItems[i];
}
} while (target == null);
MfuList.MoveCustomListItem(si, target);
}
}
}
else if ((System.Windows.Forms.Control.ModifierKeys & Keys.Control) == 0) //Not with CTRL,
{ // regardless of source => just move selection
e.Handled = true;
var idx = dataGrid.SelectedIndex + (e.Key == Key.Up ? -1 : 1);
if (idx < 0)
{
idx = dataGrid.Items.Count - 1;
}
if (idx >= dataGrid.Items.Count)
{
idx = 0;
}
dataGrid.SelectedIndex = idx;
}
if (dataGrid.SelectedItem != null) //when in search view and no hits/in clear custom list
{
dataGrid.ScrollIntoView(dataGrid.SelectedItem);
}
break;
case Key.P:
if (pi != null && pi.IsMfuChild)
{
e.Handled = true;
pi.IsPinned ^= true;
PinInternal(pi);
dataGrid.Focus();
}
break;
case Key.X:
if (pi != null && dataGrid.ItemsSource.Equals(_searchView))
{
e.Handled = true;
ExpandCollapseGroup(pi);
dataGrid.Focus();
}
break;
case Key.Right:
case Key.Left:
if (pi != null)
{
e.Handled = true;
pi.AreItemsDisplayed ^= true;
}
break;
}
}
