/* ----------------------------------------------------------------- */
///
/// Save
///
/// <summary>
/// Save the PDF document
/// </summary>
///
/// <param name="src">Facade object.</param>
/// <param name="dest">Saving file information.</param>
/// <param name="close">Close action.</param>
///
/* ----------------------------------------------------------------- */
public static void Save(this MainFacade src, Information dest, Action close)
{
var data = src.Bindable;
var tmp = data.IO.Combine(dest.DirectoryName, Guid.NewGuid().ToString("D"));
try
{
var reader = data.Source.Value.GetItexReader(data.Query, data.IO);
data.Set(reader.Metadata, reader.Encryption);
using (var writer = new DocumentWriter())
{
writer.Add(reader.Attachments);
writer.Add(data.Images.Select(e => e.RawObject), reader);
writer.Set(data.Metadata);
writer.Set(data.Encryption);
writer.Save(tmp);
}
close();
src.Backup.Invoke(dest);
data.IO.Copy(tmp, dest.FullName, true);
}
finally { data.IO.TryDelete(tmp); }
}
/* ----------------------------------------------------------------- */
///
/// Extract
///
/// <summary>
/// Extracts the selected PDF pages and saves to the specified
/// file.
/// </summary>
///
/// <param name="src">Source object.</param>
/// <param name="dest">Path to save.</param>
///
/* ----------------------------------------------------------------- */
public static void Extract(this MainFacade src, string dest) =>
src.Extract(new SaveOption(src.Value.IO)
{
Target = SaveTarget.Selected,
Split = false,
Destination = dest,
});
/* ----------------------------------------------------------------- */
///
/// Overwrite
///
/// <summary>
/// Overwrites the PDF document.
/// </summary>
///
/// <param name="src">Facade object.</param>
///
/* ----------------------------------------------------------------- */
public static void Overwrite(this MainFacade src)
{
if (src.Bindable.History.Undoable)
{
src.Save(src.Bindable.Source.Value.FullName);
}
}
/* ----------------------------------------------------------------- */
///
/// Close
///
/// <summary>
/// Closes the current PDF document.
/// </summary>
///
/// <param name="src">Source object.</param>
/// <param name="save">Save before closing.</param>
///
/* ----------------------------------------------------------------- */
public static void Close(this MainFacade src, bool save)
{
if (save)
{
src.Save(src.Value.Source.FullName, false);
}
src.Close();
}
/* ----------------------------------------------------------------- */
///
/// MoveNext
///
/// <summary>
/// Moves selected items according to the specified condition.
/// </summary>
///
/* ----------------------------------------------------------------- */
private static void MoveNext(this MainFacade src, DragDropObject obj)
{
var delta = obj.DropIndex - obj.DragIndex;
var n = src.Value.Images.Selection.Indices
.Where(i => i > obj.DragIndex && i <= obj.DropIndex).Count();
src.Move(delta - n);
}
/* ----------------------------------------------------------------- */
///
/// MovePrevious
///
/// <summary>
/// Moves selected items accoding to the specified condition.
/// </summary>
///
/// <param name="src">Facade object.</param>
/// <param name="obj">Drag&Drop result.</param>
///
/* ----------------------------------------------------------------- */
private static void MovePrevious(this MainFacade src, DragDropObject obj)
{
var delta = obj.DropIndex - obj.DragIndex;
var n = src.Bindable.Images.Selection.Indices
.Where(i => i < obj.DragIndex && i >= obj.DropIndex).Count();
src.Move(delta + n);
}
/* ----------------------------------------------------------------- */
///
/// Zoom
///
/// <summary>
/// Executes the Zoom command by using the current settings.
/// </summary>
///
/// <param name="src">Facade object.</param>
///
/* ----------------------------------------------------------------- */
public static void Zoom(this MainFacade src)
{
var items = src.Bindable.Images.Preferences.ItemSizeOptions;
var prev = src.Bindable.Images.Preferences.ItemSizeIndex;
var next = items.LastIndexOf(x => x <= src.Settings.Value.ItemSize);
src.Zoom(next - prev);
}
/* ----------------------------------------------------------------- */
///
/// IsInsertable
///
/// <summary>
/// Gets the value indicating whether the specified file is
/// insertable.
/// </summary>
///
/// <param name="src">Facade object.</param>
/// <param name="path">File path.</param>
///
/// <remarks>
/// TODO: 現在は拡張子で判断しているが、ファイル内容の Signature を
/// 用いて判断するように修正する。
/// </remarks>
///
/* ----------------------------------------------------------------- */
public static bool IsInsertable(this MainFacade src, string path)
{
var ext = src.Bindable.IO.Get(path).Extension.ToLowerInvariant();
var cmp = new List <string> {
".pdf", ".png", ".jpg", ".jpeg", ".bmp"
};
return(cmp.Contains(ext));
}
/* ----------------------------------------------------------------- */
///
/// SetMetadata
///
/// <summary>
/// Sets the Metadata object.
/// </summary>
///
/// <param name="src">Facade object.</param>
/// <param name="value">Metadata object.</param>
///
/// <returns>
/// History item to execute undo and redo actions.
/// </returns>
///
/* ----------------------------------------------------------------- */
public static HistoryItem SetMetadata(this MainFacade src, Metadata value)
{
var prev = src.Bindable.Metadata;
return(HistoryItem.CreateInvoke(
() => src.Bindable.Metadata = value,
() => src.Bindable.Metadata = prev
));
}
/* ----------------------------------------------------------------- */
///
/// SetEncryption
///
/// <summary>
/// Sets the Encryption object.
/// </summary>
///
/// <param name="src">Facade object.</param>
/// <param name="value">Encryption object.</param>
///
/// <returns>
/// History item to execute undo and redo actions.
/// </returns>
///
/* ----------------------------------------------------------------- */
public static HistoryItem SetEncryption(this MainFacade src, Encryption value)
{
var prev = src.Bindable.Encryption;
return(HistoryItem.CreateInvoke(
() => src.Bindable.Encryption = value,
() => src.Bindable.Encryption = prev
));
}
/* ----------------------------------------------------------------- */
///
/// Open
///
/// <summary>
/// Opens the first item of the specified collection.
/// </summary>
///
/// <param name="src">Facade object.</param>
/// <param name="files">File collection.</param>
///
/* ----------------------------------------------------------------- */
public static void Open(this MainFacade src, IEnumerable <string> files)
{
var path = src.GetFirst(files);
if (path.HasValue())
{
src.Open(path);
}
}
/* ----------------------------------------------------------------- */
///
/// Save
///
/// <summary>
/// Saves the PDF document to the specified file path.
/// </summary>
///
/// <param name="src">Source object.</param>
/// <param name="dest">Path to save.</param>
/// <param name="reopen">
/// Value indicating whether to reopen the document.
/// </param>
///
/* ----------------------------------------------------------------- */
public static void Save(this MainFacade src, string dest, bool reopen) => src.Save(
dest,
e => { src.Backup.Invoke(e); src.Cache?.Clear(); },
e => {
if (reopen)
{
src.Reload(e.FullName);
}
src.Value.Set(Properties.Resources.MessageSaved, e.FullName);
}
);
/* ----------------------------------------------------------------- */
///
/// Restruct
///
/// <summary>
/// Restructs some properties with the specified new PDF document.
/// </summary>
///
/// <param name="src">Facade object.</param>
/// <param name="doc">New PDF document.</param>
///
/* ----------------------------------------------------------------- */
public static void Restruct(this MainFacade src, IDocumentReader doc)
{
var items = doc.Pages.Select((v, i) => new { Value = v, Index = i });
foreach (var e in items)
{
src.Bindable.Images[e.Index].RawObject = e.Value;
}
src.Bindable.Source.Value = doc.File;
src.Bindable.History.Clear();
}
/* ----------------------------------------------------------------- */
///
/// Reload
///
/// <summary>
/// Reload the specified file information.
/// </summary>
///
/// <param name="src">Source object.</param>
/// <param name="path">File path to load.</param>
///
/* ----------------------------------------------------------------- */
public static void Reload(this MainFacade src, string path)
{
var doc = src.Cache.GetOrAdd(path, src.Value.Encryption.OwnerPassword);
var items = doc.Pages.Select((v, i) => new { Value = v, Index = i });
foreach (var e in items)
{
src.Value.Images[e.Index].RawObject = e.Value;
}
src.Value.Source = doc.File;
src.Value.History.Clear();
}
/* ----------------------------------------------------------------- */
///
/// Load
///
/// <summary>
/// Loads properties of the specified file.
/// </summary>
///
/// <param name="src">Source object.</param>
/// <param name="path">File path to load.</param>
///
/// <remarks>
/// PDFium は Metadata や Encryption の情報取得が不完全なため、
/// これらの情報は、必要になったタイミングで iTextSharp を用いて
/// 取得します。
/// </remarks>
///
/* ----------------------------------------------------------------- */
public static void Load(this MainFacade src, string path)
{
src.Value.Set(Properties.Resources.MessageLoading, path);
var doc = src.Cache.GetOrAdd(path);
src.Value.Source = doc.File;
if (!doc.Encryption.Enabled)
{
src.Value.Encryption = doc.Encryption;
}
src.Value.Images.Add(doc.Pages);
src.Value.Set(string.Empty);
}
/* ----------------------------------------------------------------- */
///
/// MainViewModel
///
/// <summary>
/// Initializes a new instance of the MainViewModel class
/// with the specified settings.
/// </summary>
///
/* ----------------------------------------------------------------- */
public MainViewModel(SettingFolder src, SynchronizationContext context) :
base(new Aggregator(), context)
{
var recent = Environment.SpecialFolder.Recent.GetName();
var mon = new DirectoryMonitor(recent, "*.pdf.lnk", src.IO, GetDispatcher(false));
var password = new Query <string>(e => Send(new PasswordViewModel(e, src.IO, context)));
Model = new MainFacade(src, password, context);
Ribbon = new RibbonViewModel(Model.Bindable, Aggregator, context);
Recent = new RecentViewModel(mon, Aggregator, context);
SetCommands();
Track(() => Model.Setup(App.Arguments));
}
/* ----------------------------------------------------------------- */
///
/// Setup
///
/// <summary>
/// Invokes some actions through the specified arguments.
/// </summary>
///
/// <param name="src">Facade object.</param>
/// <param name="args">User arguments.</param>
///
/* ----------------------------------------------------------------- */
public static void Setup(this MainFacade src, IEnumerable <string> args)
{
foreach (var ps in src.Settings.GetSplashProcesses())
{
ps.Kill();
}
var path = src.GetFirst(args);
if (path.HasValue())
{
src.Open(path);
}
src.Backup.Cleanup();
}
/* ----------------------------------------------------------------- */
///
/// OpenLink
///
/// <summary>
/// Opens a PDF document with the specified link.
/// </summary>
///
/// <param name="src">Facade object.</param>
/// <param name="link">Information for the link.</param>
///
/* ----------------------------------------------------------------- */
public static void OpenLink(this MainFacade src, Information link)
{
try { src.Open(Shortcut.Resolve(link?.FullName)?.Target); }
catch (Exception err)
{
var cancel = err is OperationCanceledException ||
err is TwiceException;
if (!cancel)
{
src.Bindable.IO.TryDelete(link?.FullName);
}
throw;
}
}
/* ----------------------------------------------------------------- */
///
/// InsertOrMove
///
/// <summary>
/// Inserts or moves the specified pages according to the specified
/// condition.
/// </summary>
///
/// <param name="src">Source object.</param>
/// <param name="obj">Drag&Drop result.</param>
///
/* ----------------------------------------------------------------- */
public static void InsertOrMove(this MainFacade src, DragDropObject obj)
{
if (!obj.IsCurrentProcess)
{
var index = Math.Min(obj.DropIndex + 1, src.Value.Count);
src.Insert(index, obj.Pages);
}
else if (obj.DragIndex < obj.DropIndex)
{
src.MoveNext(obj);
}
else
{
src.MovePrevious(obj);
}
}
/* ----------------------------------------------------------------- */
///
/// MainViewModel
///
/// <summary>
/// Initializes a new instance of the MainViewModel class
/// with the specified settings.
/// </summary>
///
/* ----------------------------------------------------------------- */
public MainViewModel(SettingsFolder src) : base(new Messenger())
{
var recent = Environment.SpecialFolder.Recent.GetName();
var mon = new DirectoryMonitor(recent, "*.pdf.lnk", src.IO);
var password = new Query <string>(e => Send(new PasswordViewModel(e, src.IO, Context)));
Model = new MainFacade(src, password, Context);
Ribbon = new RibbonViewModel(Model.Bindable, MessengerInstance);
Recent = new RecentViewModel(mon, MessengerInstance);
Data.Source.PropertyChanged += (s, e) => Ribbon.Raise();
Data.Busy.PropertyChanged += (s, e) => Ribbon.Raise();
SetCommands();
Post(() => Model.Setup(App.Arguments));
}
/* ----------------------------------------------------------------- */
///
/// Save
///
/// <summary>
/// Save the PDF document
/// </summary>
///
/// <param name="src">Source object.</param>
/// <param name="dest">Saving file information.</param>
/// <param name="prev">Action to be invoked before saving.</param>
/// <param name="next">Action to be invoked after saving.</param>
///
/* ----------------------------------------------------------------- */
public static void Save(this MainFacade src, string dest, Action <Entity> prev, Action <Entity> next)
{
var obj = src.Value;
var itext = obj.Source.GetItext(obj.Query, obj.IO, false);
obj.Set(itext.Metadata, itext.Encryption);
src.Save(itext, new SaveOption(obj.IO)
{
Target = SaveTarget.All,
Split = false,
Destination = dest,
Metadata = obj.Metadata,
Encryption = obj.Encryption,
Attachments = itext.Attachments,
}, prev, next);
}
/* ----------------------------------------------------------------- */
///
/// RibbonViewModel
///
/// <summary>
/// Initializes a new instance of the RibbonViewModel
/// class with the specified arguments.
/// </summary>
///
/// <param name="src">Facade object.</param>
/// <param name="aggregator">Message aggregator.</param>
/// <param name="context">Synchronization context.</param>
///
/* ----------------------------------------------------------------- */
public RibbonViewModel(MainFacade src,
Aggregator aggregator,
SynchronizationContext context
) : base(src, aggregator, context)
{
}
/* ----------------------------------------------------------------- */
///
/// Extract
///
/// <summary>
/// Extracts PDF pages saves to a file with the specified options.
/// </summary>
///
/// <param name="src">Source object.</param>
/// <param name="options">Save options.</param>
///
/* ----------------------------------------------------------------- */
public static void Extract(this MainFacade src, SaveOption options) => src.Save(
null,
options,
e => src.Backup.Invoke(e),
e => src.Value.Set(Properties.Resources.MessageSaved, e.FullName)
);
/* ----------------------------------------------------------------- */ /// /// Select /// /// <summary> /// Sets or resets the IsSelected property of all items according /// to the current condition. /// </summary> /// /// <param name="src">Facade object.</param> /// /* ----------------------------------------------------------------- */ public static void Select(this MainFacade src) => src.Select(src.Bindable.Images.Selection.Count < src.Bindable.Images.Count);
/* ----------------------------------------------------------------- */
///
/// StartProcess
///
/// <summary>
/// Starts a new process with the specified arguments.
/// </summary>
///
/// <param name="src">Facade object.</param>
/// <param name="args">User arguments.</param>
///
/* ----------------------------------------------------------------- */
public static void StartProcess(this MainFacade src, string args) =>
Process.Start(new ProcessStartInfo
{
FileName = Assembly.GetExecutingAssembly().Location,
Arguments = args
});
/* ----------------------------------------------------------------- */ /// /// Insert /// /// <summary> /// Inserts the specified file behind the selected index. /// </summary> /// /// <param name="src">Facade object.</param> /// <param name="files">Collection of inserting files.</param> /// /* ----------------------------------------------------------------- */ public static void Insert(this MainFacade src, IEnumerable <string> files) => src.Insert(src.Bindable.Images.Selection.Last + 1, files);
/* ----------------------------------------------------------------- */ /// /// GetFirst /// /// <summary> /// Gets the first item of the specified collection /// </summary> /// /// <param name="src">Facade object.</param> /// <param name="files">File collection.</param> /// /* ----------------------------------------------------------------- */ public static string GetFirst(this MainFacade src, IEnumerable <string> files) => files.FirstOrDefault(e => e.IsPdf());
/* ----------------------------------------------------------------- */ /// /// Overwrite /// /// <summary> /// Overwrites the PDF document. /// </summary> /// /// <param name="src">Source object.</param> /// /* ----------------------------------------------------------------- */ public static void Overwrite(this MainFacade src) => src.Value.History.Undoable.Then(() => src.Save(src.Value.Source.FullName));
/* ----------------------------------------------------------------- */ /// /// Save /// /// <summary> /// Saves the PDF document to the specified file path. /// </summary> /// /// <param name="src">Facade object.</param> /// <param name="dest">File path.</param> /// /* ----------------------------------------------------------------- */ public static void Save(this MainFacade src, string dest) => src.Save(dest, true);