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CCR.Clipboard.Apple.pas
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CCR.Clipboard.Apple.pas
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{**************************************************************************************}
{ }
{ CCR.Clipboard - OS X and iOS backends. In same unit for convenience of client code. }
{ }
{ The contents of this file are subject to the Mozilla Public License Version 2.0 }
{ (the "License"); you may not use this file except in compliance with the License. }
{ You may obtain a copy of the License at https://www.mozilla.org/MPL/2.0 }
{ }
{ Software distributed under the License is distributed on an "AS IS" basis, WITHOUT }
{ WARRANTY OF ANY KIND, either express or implied. See the License for the specific }
{ language governing rights and limitations under the License. }
{ }
{ The Initial Developer of the Original Code is Chris Rolliston. Portions created by }
{ Chris Rolliston are Copyright (C) 2012-15 Chris Rolliston. All Rights Reserved. }
{ }
{**************************************************************************************}
unit CCR.Clipboard.Apple;
interface
{$IFDEF NEXTGEN}
{$LEGACYIFEND ON}
{$ENDIF}
{$IFDEF MACOS}
uses
{$IFDEF IOS} {$IF RTLVersion < 27}{$Message Fatal 'TClipboard for iOS requires XE6 or later'}{$IFEND}
iOSapi.CocoaTypes, iOSapi.CoreGraphics, iOSapi.Foundation, iOSapi.UIKit,
{$ELSE}
MacApi.CocoaTypes, MacApi.CoreGraphics, MacApi.Foundation, MacApi.AppKit,
{$ENDIF}
System.Math, System.SysUtils, System.Classes, System.Generics.Collections, System.UITypes,
Posix.Dlfcn, Posix.UniStd, MacApi.ObjCRuntime, MacApi.ObjectiveC, MacApi.CoreFoundation,
CCR.Clipboard.Consts, CCR.Clipboard, CCR.Clipboard.Apple.Helpers;
type
TAppleClipboardCore = class(TClipboard.TCore)
strict private class var
FRegisteredTypes: CFMutableSetRef;
class constructor InitializeClass;
class destructor FinalizeClass;
strict protected class var
FFindClipboard: TClipboard;
class function SameFormat(const Format1, Format2: TClipboardFormat): Boolean; override;
//for notification of RegisterFormat calls with a name not registered before
class procedure NewFormatRegistered(const Name: string; const Format: TClipboardFormat); virtual;
private
class function RegisterFormatInternal(const TypeRef: CFStringRef): TClipboardFormat; overload;
class function RegisterFormatInternal(const TypeLiteral: MarshaledAString): TClipboardFormat; overload; inline;
class property FindClipboard: TClipboard read FFindClipboard;
protected class var
cfAppleICNS, cfColor, cfPDF, cfTGA: TClipboardFormat;
protected
class procedure InitializeFormats(StdFormatValues: TClipboard.TStdFormatValues;
var CustomFormatsSupported: Boolean); override;
class function IsCompatibleVirtualFileDescriptor(const Descriptor: string;
const SupportedFileExtsOrUTIs: TArray<string>): Boolean; override;
class function GetFormatName(const Format: TClipboardFormat): string; override;
class function GetFormatDescription(const Format: TClipboardFormat): string; override;
class function RegisterFormat(const TypeRef: CFStringRef; TakeOwnership: Boolean): TClipboardFormat; reintroduce; overload;
class function RegisterFormat(const Name: string): TClipboardFormat; overload; override;
strict protected
function GetNSURLs: NSArray; virtual; abstract;
protected
function ReadFileNames: TArray<string>;
function ReadURLs: TArray<string>;
end;
TClipboardFormatHelper = record helper for TClipboardFormat
strict private
function GetHandle: CFStringRef; inline;
public
class function Wrap(const PredefinedType: CFStringRef): TClipboardFormat; overload; static; inline;
class function Wrap(const PredefinedType: NSString): TClipboardFormat; overload; static; inline;
class function Wrap(const UTI: string): TClipboardFormat; overload; static; inline;
function IsUTI: Boolean; inline;
function ToNSString: NSString; inline;
property Handle: CFStringRef read GetHandle;
end;
function cfAppleICNS: TClipboardFormat; inline;
function cfColor: TClipboardFormat; inline;
function cfPDF: TClipboardFormat; inline;
function cfTGA: TClipboardFormat; inline;
function ClipboardFormatsToNSArray(const AFormats: array of TClipboardFormat): NSArray;
function NSArrayToClipboardFormats(const Types: NSArray): TArray<TClipboardFormat>;
function FindClipboard: TClipboard; inline;
{$IFDEF iOS}
type
IiOSClipboardCore = interface
['{CCF96610-2292-480E-A733-68BC2746E700}']
procedure AssignNSObject(const Format: TClipboardFormat; const ObjID: Pointer);
function GetPasteboard: UIPasteboard;
property Pasteboard: UIPasteboard read GetPasteboard;
end;
TiOSClipboardCore = class(TAppleClipboardCore, IiOSClipboardCore, TClipboard.IReadWriteBytes,
TClipboard.IReadWriteFileNames, TClipboard.IReadWriteURL, TClipboard.IMultipleFormatSets)
strict private
FChangeListener: NSObject;
FCurrentItem: NSMutableDictionary;
FCustomPasteboard: UIPasteboard;
FToAdd: NSMutableArray;
FOnNotifyChanges: TProc;
function GetPasteboard: UIPasteboard; inline;
procedure NeedItem(const NewIfHasFormat: array of TClipboardFormat);
procedure AssignNSObject(const Format: TClipboardFormat; const ObjID: Pointer);
strict protected
class function ConformingFormat(const FormatToTest, BaseFormat: TClipboardFormat): Boolean; override;
class procedure InitializeFormats(StdFormatValues: TClipboard.TStdFormatValues;
var CustomFormatsSupported: Boolean); override;
function GetNSURLs: NSArray; override;
property OnNotifyChanges: TProc read FOnNotifyChanges;
{ TClipboard.TCore }
function GetChangeCount: TClipboardChangeCount; override;
function SupportsChangeNotifications: Boolean; override;
procedure EnableChangeNotifications(const Callback: TThreadMethod); override;
procedure DisableChangeNotifications; override;
function WrapsSystemClipboard: Boolean; override;
procedure DoClear; override;
function DoOpen: Boolean; override;
procedure DoClose; override;
function GetFormats: TArray<TClipboardFormat>; override;
function HasFormat(Format: TClipboardFormat): Boolean; override;
function HasFormat(const Formats: array of TClipboardFormat; var Matched: TClipboardFormat): Boolean; override;
function ReadPlainText: TArray<string>; override;
procedure WritePlainText(const Renderer: TFunc<string>; PreferDelayed: Boolean); override;
{ TClipboard.IMultipleFormatSets }
procedure NewFormatSet;
procedure EnumBytes(const Format: TClipboardFormat; const Callback: TGetBytesCallback);
procedure EnumFormatSets(const Callback: TEnumFormatSetsCallback);
{ TClipboard.IReadWriteBytes }
function ReadBytes(const Format: TClipboardFormat): TBytes;
procedure WriteBytes(const Format: TClipboardFormat;
const Renderer: TFunc<TBytes>; PreferDelayed: Boolean); overload;
{ TClipboard.IReadWriteFileNames }
procedure WriteFileName(const Renderer: TFunc<TFileName>; PreferDelayed: Boolean);
{ TClipboard.IReadWriteURL }
procedure WriteURL(const Renderer: TFunc<string>; PreferDelayed: Boolean);
public
class function CreateClipboardForPasteboard(const Pasteboard: UIPasteboard): TClipboard;
constructor Create(const AOwner: TClipboard; const ACustomPasteboard: UIPasteboard); reintroduce; overload;
destructor Destroy; override;
property Pasteboard: UIPasteboard read GetPasteboard;
end;
TiOSClipboardCoreClass = class of TiOSClipboardCore;
{$ELSE}
type
TGetPasteboardDataEvent = reference to procedure (const NSType: NSString;
const DestItem: NSPasteboardItem);
{$M+}
IPasteboardItemDataProvider = interface(NSPasteboardItemDataProvider)
['{8EA66AE3-A7D1-4139-951E-B4EFBC1089F2}']
{ standard NSPasteboardItemDataProvider }
procedure pasteboard(pasteboard: NSPasteboard; item: NSPasteboardItem; provideDataForType: CFStringRef); cdecl;
procedure pasteboardFinishedWithDataProvider(Sender: Pointer); cdecl;
{ internal }
function count: Integer; cdecl;
function types: NSArray; cdecl;
function hasType(PBType: CFStringRef): Boolean; cdecl;
function hasOutstandingPromises: Boolean; cdecl;
procedure clearContents; cdecl;
procedure resolvePromises(Item: NSPasteboardItem; forceAnyVirtualFile: Boolean); cdecl;
end;
TPasteboardItemDataProvider = class(TOCLocal, NSPasteboardItemDataProvider, IPasteboardItemDataProvider)
strict private type
TSource = class
strict private
FFormat: TClipboardFormat;
FOnGetData: TGetPasteboardDataEvent;
public
constructor Create(const Format: TClipboardFormat; const OnGetData: TGetPasteboardDataEvent);
property Format: TClipboardFormat read FFormat;
property GetData: TGetPasteboardDataEvent read FOnGetData;
end;
strict private
FToUpload: TObjectList<TSource>;
private
procedure AddFormat(const Format: TClipboardFormat; const OnGetData: TGetPasteboardDataEvent);
public
constructor Create; overload;
constructor Create(const Format: TClipboardFormat; const OnGetData: TGetPasteboardDataEvent); overload;
destructor Destroy; override;
{ NSPasteboardItemDataProvider }
procedure pasteboard(pasteboard: NSPasteboard; item: NSPasteboardItem;
provideDataForType: CFStringRef); cdecl;
procedure pasteboardFinishedWithDataProvider(Sender: Pointer); cdecl;
{ IPasteboardItemDataProvider }
function count: Integer; cdecl;
function types: NSArray; cdecl;
function hasType(PBType: CFStringRef): Boolean; cdecl;
function hasOutstandingPromises: Boolean; cdecl;
procedure clearContents; cdecl;
procedure resolvePromises(Item: NSPasteboardItem; forceAnyVirtualFile: Boolean); cdecl;
end;
{$M-}
IMacClipboardCore = interface
['{44B2B2E1-1F2F-429D-A9CB-118F4252302F}']
procedure AssignNSObject(const ObjID: Pointer);
function GetPasteboard: NSPasteboard;
property Pasteboard: NSPasteboard read GetPasteboard;
end;
TMacClipboardCore = class(TAppleClipboardCore, IMacClipboardCore, TClipboard.IReadWriteBytes,
TClipboard.IReadWriteFileNames, TClipboard.IReadWriteURL, TClipboard.IReadWriteVirtualFile,
TClipboard.IMultipleFormatSets, TClipboard.IDelayedRendering)
strict private class var
FAllClipboardTypeKinds: ICFMutableArray; //workaround for class destructors called after variable already nil'ed
FDragClipboard, FFontClipboard, FRulerClipboard: TClipboard;
class destructor FinalizeClass;
class function GetAllClipboardTypeKinds: NSMutableArray; static;
strict private
FChangeNotifyCallback: TThreadMethod;
FCustomPasteboard: NSPasteboard;
FCurrentProvider: TPasteboardItemDataProvider;
FLastChangeCount: NSInteger;
FProviders: TList<IPasteboardItemDataProvider>;
FProvidedItems: array of NSPasteboardItem;
FNSObjectIDsToUpload: TList<Pointer>;
FTimer: CFRunLoopTimerRef;
class procedure CheckForChangesTimer(timer: CFRunLoopTimerRef; info: Pointer); cdecl; static;
procedure CheckForChanges;
procedure AddFormat(const Format: TClipboardFormat;
const OnGetData: TGetPasteboardDataEvent);
procedure NSObjectIDsToUploadNotify(Sender: TObject; const Item: Pointer;
Action: TCollectionNotification);
procedure DoEnumVirtualFiles(DescriptorsOnly: Boolean; const Callback: TSaveVirtualFilesCallback);
private class var
cfRTFD, cfTabularText, cfFont, cfRuler, cfSound, cfMultipleTextSelection,
cfFindPanelSearchOptions, cfFileURLPromise, cfFilePromiseContent: TClipboardFormat;
class property DragClipboard: TClipboard read FDragClipboard;
class property FontClipboard: TClipboard read FFontClipboard;
class property RulerClipboard: TClipboard read FRulerClipboard;
strict protected
class function ConformingFormat(const FormatToTest, BaseFormat: TClipboardFormat): Boolean; override;
class procedure InitializeFormats(StdFormatValues: TClipboard.TStdFormatValues;
var CustomFormatsSupported: Boolean); override;
class procedure NewFormatRegistered(const Name: string; const Format: TClipboardFormat); override;
function GetNSURLs: NSArray; override;
{ IMacClipboardCore }
procedure AssignNSObject(const ObjID: Pointer);
function GetPasteboard: NSPasteboard;
{ TClipboard.TCore }
constructor Create(const AOwner: TClipboard); overload; override;
function SupportsChangeNotifications: Boolean; override;
procedure EnableChangeNotifications(const Callback: TThreadMethod); override;
procedure DisableChangeNotifications; override;
function GetChangeCount: TClipboardChangeCount; override;
function WrapsSystemClipboard: Boolean; override;
function GetFormats: TArray<TClipboardFormat>; override;
function HasFormat(Format: TClipboardFormat): Boolean; override;
function HasFormat(const Formats: array of TClipboardFormat; var Matched: TClipboardFormat): Boolean; override;
function DoOpen: Boolean; override;
procedure DoClose; override;
procedure DoClear; override;
function ReadPlainText: TArray<string>; override;
procedure WritePlainText(const Renderer: TFunc<string>; PreferDelayed: Boolean); override;
{ TClipboard.IDelayedRendering }
function HasOutstandingPromisesToOS: Boolean;
procedure ResolveOutstandingPromisesToOS(IsExplicitlyRequested: Boolean);
procedure CancelOutstandingPromisesToOS;
{ TClipboard.IReadWriteBytes }
function ReadBytes(const Format: TClipboardFormat): TBytes;
procedure WriteBytes(const Format: TClipboardFormat;
const Renderer: TFunc<TBytes>; PreferDelayed: Boolean); overload;
{ TClipboard.IReadWriteFileNames }
procedure WriteFileName(const Renderer: TFunc<TFileName>; PreferDelayed: Boolean);
{ TClipboard.IReadWriteURL }
procedure WriteURL(const Renderer: TFunc<string>; PreferDelayed: Boolean);
{ TClipboard.IReadWriteVirtualFile }
function ReadVirtualFileDescriptors: TArray<string>;
procedure ReadVirtualFiles(const Callback: TEnumVirtualFilesStreamCallback);
procedure SaveVirtualFiles(const Callback: TSaveVirtualFilesCallback);
procedure WriteVirtualFile(const Details: TVirtualFileDetails;
const Renderer: TProc<TStream>; PreferDelayed: Boolean);
{ TClipboard.IMultipleFormatSets }
procedure NewFormatSet;
procedure EnumBytes(const Format: TClipboardFormat; const Callback: TGetBytesCallback);
procedure EnumFormatSets(const Callback: TEnumFormatSetsCallback);
public
constructor Create(const AOwner: TClipboard; const ACustomPasteboard: NSPasteboard); reintroduce; overload;
destructor Destroy; override;
property Pasteboard: NSPasteboard read GetPasteboard;
class property AllClipboardTypeKinds: NSMutableArray read GetAllClipboardTypeKinds;
end;
function LoadNSObjectsFromPasteboard(const Pasteboard: NSPasteboard; const NSClass: NSObjectClass): NSArray; overload;
function LoadNSObjectsFromPasteboard(const Pasteboard: NSPasteboard;
const NSClasses: array of NSObjectClass; const Options: NSDictionary = nil): NSArray; overload;
function DragClipboard: TClipboard; inline;
function FontClipboard: TClipboard; inline;
function RulerClipboard: TClipboard; inline;
function cfRTFD: TClipboardFormat; inline;
function cfTabularText: TClipboardFormat; inline;
function cfFont: TClipboardFormat; inline;
function cfRuler: TClipboardFormat; inline;
function cfSound: TClipboardFormat; inline;
function cfMultipleTextSelection: TClipboardFormat; inline;
function cfFindPanelSearchOptions: TClipboardFormat; inline;
function cfFileURLPromise: TClipboardFormat; inline;
function cfFilePromiseContent: TClipboardFormat; inline;
{$ENDIF}
{$ENDIF}
implementation
{$IFDEF MACOS}
uses
System.RTLConsts, System.IOUtils;
function ClipboardFormatsToNSArray(const AFormats: array of TClipboardFormat): NSArray;
begin
Result := TNSArray.Wrap(TNSArray.OCClass.arrayWithObjects(@AFormats[0], Length(AFormats)));
end;
function NSArrayToClipboardFormats(const Types: NSArray): TArray<TClipboardFormat>;
var
I: Integer;
begin
if Types = nil then Exit(nil);
SetLength(Result, Types.count);
{ can't just copy the CFStringRefs directly because caller may wish to hold
onto the array -> retain counts }
for I := 0 to High(Result) do
Result[I] := TAppleClipboardCore.RegisterFormat(Types.objectAtIndex(I), False)
end;
function cfAppleICNS: TClipboardFormat;
begin
Result := TAppleClipboardCore.cfAppleICNS;
end;
function cfColor: TClipboardFormat;
begin
Result := TAppleClipboardCore.cfColor;
end;
function cfPDF: TClipboardFormat;
begin
Result := TAppleClipboardCore.cfPDF;
end;
function cfTGA: TClipboardFormat;
begin
Result := TAppleClipboardCore.cfTGA;
end;
function FindClipboard: TClipboard;
begin
Result := TAppleClipboardCore.FindClipboard;
end;
{ TAppleClipboardCore }
function SetCompareFunc(Str1, Str2: Pointer): Boolean; cdecl;
begin
Result := CFStringCompare(Str1, Str2, kCFCompareCaseInsensitive) = 0;
end;
class constructor TAppleClipboardCore.InitializeClass;
var
Callbacks: CFSetCallBacks;
begin
Callbacks := kCFTypeSetCallBacks;
Callbacks.equal := SetCompareFunc;
FRegisteredTypes := CFSetCreateMutable(nil, 0, @Callbacks);
end;
class destructor TAppleClipboardCore.FinalizeClass;
begin
CFReleaseAndNil(FRegisteredTypes);
FFindClipboard.Free;
end;
function CFStringContains(const StrToSearch, StrToFind: CFStringRef): Boolean; inline;
begin
Result := (CFStringFind(StrToSearch, StrToFind, 0).length > 0);
end;
class function TAppleClipboardCore.SameFormat(const Format1, Format2: TClipboardFormat): Boolean;
begin
if (Format1.Handle = nil) or (Format2.Handle = nil) then Exit(False);
Result := UTTypeEqual(Format1.Handle, Format2.Handle);
if not Result and not Format1.IsUTI and not Format2.IsUTI then
Result := (CFStringCompare(Format1.Handle, Format2.Handle,
kCFCompareCaseInsensitive) = kCFCompareEqualTo);
end;
class procedure TAppleClipboardCore.NewFormatRegistered(const Name: string; const Format: TClipboardFormat);
begin
end;
class procedure TAppleClipboardCore.InitializeFormats(
StdFormatValues: TClipboard.TStdFormatValues; var CustomFormatsSupported: Boolean);
begin
StdFormatValues.cfUTF8Text := RegisterFormatInternal(kUTTypeUTF8PlainText);
StdFormatValues.cfUnicodeText := RegisterFormatInternal(kUTTypeUTF16PlainText);
StdFormatValues.cfRTF := RegisterFormatInternal(kUTTypeRTF);
StdFormatValues.cfGIF := RegisterFormatInternal(kUTTypeGIF);
StdFormatValues.cfJPEG := RegisterFormatInternal(kUTTypeJPEG);
StdFormatValues.cfPNG := RegisterFormatInternal(kUTTypePNG);
StdFormatValues.cfTIFF := RegisterFormatInternal(kUTTypeTIFF);
StdFormatValues.cfFileName := RegisterFormatInternal(kUTTypeFileURL);
StdFormatValues.cfURL := RegisterFormatInternal(kUTTypeURL);
//use UTI format rather than generic defaults taken from the VCL
StdFormatValues.cfComponent := RegisterFormatInternal('com.embarcadero.dfm');
StdFormatValues.cfComponents := RegisterFormatInternal('com.embarcadero.dfms');
cfAppleICNS := RegisterFormatInternal(kUTTypeAppleICNS);
cfPDF := RegisterFormatInternal(kUTTypePDF);
cfTGA := RegisterFormatInternal('com.truevision.tga-image');
CustomFormatsSupported := True;
end;
class function TAppleClipboardCore.IsCompatibleVirtualFileDescriptor(const Descriptor: string;
const SupportedFileExtsOrUTIs: TArray<string>): Boolean;
var
Ext: string;
InUTI, BaseUTI: CFStringRef;
begin
BaseUTI := nil;
InUTI := CFStringCreateWithString(Descriptor);
try
for Ext in SupportedFileExtsOrUTIs do
begin
CFReleaseAndNil(BaseUTI);
if PChar(Ext)^ = '.' then
BaseUTI := CFStringCreateUTIForFileExt(Ext)
else
BaseUTI := CFStringCreateWithString(Ext);
Result := UTTypeConformsTo(InUTI, BaseUTI);
if Result then Exit;
end;
finally
CFReleaseAndNil(InUTI);
end;
Result := False;
end;
class function TAppleClipboardCore.GetFormatName(const Format: TClipboardFormat): string;
begin
Result := CFStringGetValue(CFStringRef(Format));
end;
class function TAppleClipboardCore.GetFormatDescription(const Format: TClipboardFormat): string;
begin
Result := CFStringGetValue(UTTypeCopyDescription(CFStringRef(Format)));
end;
class function TAppleClipboardCore.RegisterFormatInternal(const TypeRef: CFStringRef): TClipboardFormat;
begin
CFSetAddValue(FRegisteredTypes, TypeRef);
Result := TClipboardFormat.Wrap(TypeRef);
end;
class function TAppleClipboardCore.RegisterFormatInternal(const TypeLiteral: MarshaledAString): TClipboardFormat;
begin
Result := RegisterFormatInternal(__CFStringMakeConstantString(TypeLiteral));
end;
class function TAppleClipboardCore.RegisterFormat(const TypeRef: CFStringRef;
TakeOwnership: Boolean): TClipboardFormat;
begin
try
if CFSetGetValueIfPresent(CFSetRef(FRegisteredTypes), TypeRef, @Result) then
Exit;
Result := RegisterFormatInternal(TypeRef);
finally
if TakeOwnership then CFRelease(TypeRef);
end;
NewFormatRegistered(CFStringGetValue(TypeRef), Result);
end;
class function TAppleClipboardCore.RegisterFormat(const Name: string): TClipboardFormat;
begin
Result := RegisterFormat(CFStringCreateWithString(Name), True);
end;
function TAppleClipboardCore.ReadFileNames: TArray<string>;
var
NSArr: NSArray;
URL: NSURL;
Count, I: Integer;
begin
NSArr := GetNSURLs;
if NSArr = nil then Exit(nil);
SetLength(Result, NSArr.count);
Count := 0;
for I := 0 to High(Result) do
begin
URL := TNSURL.Wrap(NSArr.objectAtIndex(I));
if URL.isFileURL then
begin
Result[Count] := NSStringGetValue(URL.path); //!!!may need to switch to using CFURLCopyFileSystemPath
Inc(Count);
end;
end;
SetLength(Result, Count);
end;
function TAppleClipboardCore.ReadURLs: TArray<string>;
var
I: Integer;
NSArr: NSArray;
begin
NSArr := GetNSURLs;
if NSArr = nil then Exit(nil);
SetLength(Result, NSArr.count);
for I := 0 to High(Result) do
Result[I] := NSStringGetValue(TNSURL.Wrap(NSArr.objectAtIndex(I)).absoluteString);
end;
{ TClipboardFormatHelper }
class function TClipboardFormatHelper.Wrap(const PredefinedType: CFStringRef): TClipboardFormat;
begin
Result := TClipboardFormat(PredefinedType);
end;
class function TClipboardFormatHelper.Wrap(const PredefinedType: NSString): TClipboardFormat;
begin
Result := TClipboardFormat((PredefinedType as ILocalObject).GetObjectID);
end;
class function TClipboardFormatHelper.Wrap(const UTI: string): TClipboardFormat;
begin
Result := TAppleClipboardCore.RegisterFormat(UTI);
end;
function TClipboardFormatHelper.GetHandle: CFStringRef;
begin
Result := CFStringRef(Self);
end;
function TClipboardFormatHelper.IsUTI: Boolean;
begin
Result := IsValidUTIString(Handle);
end;
function TClipboardFormatHelper.ToNSString: NSString;
begin
Result := TNSString.Wrap(Handle);
end;
{$IFDEF iOS}
type
{$M+}
IChangeListener = interface(IObjectiveC)
['{7F7F54AE-FECD-4F2A-AEBA-4E2F167CD46F}']
procedure pasteboardChanged(notification: Pointer); cdecl;
end;
TChangeListener = class(TOCLocal, IChangeListener)
strict private
FCallback: TProc;
public
constructor Create(const Callback: TProc);
procedure pasteboardChanged(notification: Pointer); cdecl;
end;
{$M-}
constructor TChangeListener.Create(const Callback: TProc);
begin
inherited Create;
FCallback := Callback;
end;
procedure TChangeListener.pasteboardChanged(notification: Pointer);
begin
FCallback();
end;
{ TiOSClipboardCore }
type
TAdditionalClipboard = class(TClipboard)
public
constructor Create(const MinCoreClass: TiOSClipboardCoreClass;
const Pasteboard: UIPasteboard);
end;
constructor TAdditionalClipboard.Create(const MinCoreClass: TiOSClipboardCoreClass;
const Pasteboard: UIPasteboard);
var
LClass: TiOSClipboardCoreClass;
begin
LClass := TiOSClipboardCoreClass(GetSuitableCoreClass(TiOSClipboardCore));
inherited Create(LClass.Create(Self, Pasteboard));
end;
class function TiOSClipboardCore.CreateClipboardForPasteboard(const Pasteboard: UIPasteboard): TClipboard;
begin
Result := TAdditionalClipboard.Create(Self, Pasteboard);
end;
class function TiOSClipboardCore.ConformingFormat(const FormatToTest, BaseFormat: TClipboardFormat): Boolean;
begin
if (FormatToTest.Handle = nil) or (BaseFormat.Handle = nil) then
Result := False
else
if FormatToTest.IsUTI then
if BaseFormat.IsUTI then
Result := UTTypeConformsTo(FormatToTest.Handle, BaseFormat.Handle)
else
Result := False
else
if BaseFormat.IsUTI then
Result := False
else
Result := SameFormat(FormatToTest, BaseFormat);
end;
{$IF NOT DECLARED(UIPasteboardNameFind)}
const
UIKitFwk = '/System/Library/Frameworks/UIKit.framework/UIKit';
function UIPasteboardNameFind: NSString;
begin
Result := CocoaNSStringConst(UIKitFwk, 'UIPasteboardNameFind');
end;
function UIPasteboardChangedNotification: NSString;
begin
Result := CocoaNSStringConst(UIKitFwk, 'UIPasteboardChangedNotification');
end;
{$IFEND}
class procedure TiOSClipboardCore.InitializeFormats(
StdFormatValues: TClipboard.TStdFormatValues; var CustomFormatsSupported: Boolean);
begin
inherited;
cfColor := RegisterFormatInternal('com.apple.uikit.color');
FFindClipboard := CreateClipboardForPasteboard(
TUIPasteboard.Wrap(TUIPasteboard.OCClass.pasteboardWithName(UIPasteboardNameFind, False)));
end;
constructor TiOSClipboardCore.Create(const AOwner: TClipboard; const ACustomPasteboard: UIPasteboard);
begin
if ACustomPasteboard = nil then
raise EArgumentNilException.CreateRes(@SArgumentNil);
Create(AOwner);
FCustomPasteboard := ACustomPasteboard;
FCustomPasteboard.retain;
end;
destructor TiOSClipboardCore.Destroy;
begin
if FCustomPasteboard <> nil then FCustomPasteboard.release;
inherited;
end;
function TiOSClipboardCore.GetChangeCount: TClipboardChangeCount;
begin
Result := TClipboardChangeCount(Pasteboard.changeCount);
end;
function TiOSClipboardCore.WrapsSystemClipboard: Boolean;
begin
Result := (FCustomPasteboard = nil);
end;
function TiOSClipboardCore.SupportsChangeNotifications: Boolean;
begin
Result := True;
end;
procedure TiOSClipboardCore.EnableChangeNotifications(const Callback: TThreadMethod);
var
NotifyCentre: NSNotificationCenter;
begin
FOnNotifyChanges := Callback;
//god the Objective-C bridge syntax is horrible...
FChangeListener := TNSObject.Wrap(TChangeListener.Create(Callback).GetObjectID);
NotifyCentre := TNSNotificationCenter.Wrap(TNSNotificationCenter.OCClass.defaultCenter);
NotifyCentre.addObserver((FChangeListener as ILocalObject).GetObjectID,
sel_getUid('pasteboardChanged:'),
(UIPasteboardChangedNotification as ILocalObject).GetObjectID,
(Pasteboard as ILocalObject).GetObjectID);
end;
procedure TiOSClipboardCore.DisableChangeNotifications;
begin
FOnNotifyChanges := nil;
TNSNotificationCenter.Wrap(TNSNotificationCenter.OCClass.defaultCenter).removeObserver(
(FChangeListener as ILocalObject).GetObjectID);
FChangeListener.release;
FChangeListener := nil;
end;
function TiOSClipboardCore.GetPasteboard: UIPasteboard;
begin
if FCustomPasteboard = nil then
Result := TUIPasteboard.Wrap(TUIPasteboard.OCClass.generalPasteboard)
else
Result := FCustomPasteboard;
end;
function TiOSClipboardCore.DoOpen: Boolean;
begin
FToAdd := TNSMutableArray.Wrap(CFArrayCreateMutable(nil, 4, nil));
Result := True;
end;
procedure TiOSClipboardCore.DoClear;
begin
Pasteboard.setItems(nil);
FToAdd.removeAllObjects;
FCurrentItem := nil;
end;
procedure TiOSClipboardCore.DoClose;
begin
try
if FToAdd.count <> 0 then Pasteboard.setItems(FToAdd);
finally
FCurrentItem := nil;
FToAdd.release;
FToAdd := nil;
end;
end;
{ reading }
function TiOSClipboardCore.GetNSURLs: NSArray;
begin
Result := Pasteboard.URLs;
end;
function TiOSClipboardCore.ReadBytes(const Format: TClipboardFormat): TBytes;
begin
Result := NSDataToBytes(Pasteboard.dataForPasteboardType(Format.ToNSString));
end;
procedure TiOSClipboardCore.EnumBytes(const Format: TClipboardFormat;
const Callback: TGetBytesCallback);
var
ContinueEnum: Boolean;
Pasteboard: UIPasteboard;
I: Integer;
Values: NSArray;
begin
ContinueEnum := True;
Pasteboard := GetPasteboard;
Values := Pasteboard.dataForPasteboardType(Format.ToNSString, nil);
if Values <> nil then
for I := 0 to Values.count - 1 do
begin
Callback(NSDataToBytes(TNSData.Wrap(Values.objectAtIndex(I))), ContinueEnum);
if not ContinueEnum then Exit;
end;
end;
procedure TiOSClipboardCore.EnumFormatSets(const Callback: TEnumFormatSetsCallback);
var
LookForMore: Boolean;
GetFormatBytes: TFunc<TClipboardFormat, TBytes>;
I: NSUInteger;
Items: NSArray;
Pasteboard: UIPasteboard;
begin
LookForMore := True;
Pasteboard := GetPasteboard;
Items := Pasteboard.pasteboardTypesForItemSet(nil);
if Items = nil then Exit;
GetFormatBytes :=
function (ClipFormat: TClipboardFormat): TBytes
var
DataArr: NSArray;
begin
DataArr := Pasteboard.dataForPasteboardType(ClipFormat.ToNSString,
TNSIndexSet.Wrap(TNSIndexSet.OCClass.indexSetWithIndex(I)));
if (DataArr = nil) or (DataArr.count = 0) then
Result := nil
else
Result := NSDataToBytes(TNSData.Wrap(DataArr.objectAtIndex(0)));
end;
for I := 0 to Items.count - 1 do
begin
Callback(NSArrayToClipboardFormats(TNSArray.Wrap(Items.objectAtIndex(I))),
GetFormatBytes, LookForMore);
if not LookForMore then Break;
end;
GetFormatBytes := nil;
end;
function NSArrayToStrings(const ArrRef: CFArrayRef): TArray<string>; overload;
var
I: Integer;
begin
SetLength(Result, CFArrayGetCount(ArrRef));
for I := 0 to High(Result) do
Result[I] := CFStringGetValue(CFArrayGetValueAtIndex(ArrRef, I));
end;
function NSArrayToStrings(const Arr: NSArray): TArray<string>; overload;
begin
Result := NSArrayToStrings((Arr as ILocalObject).GetObjectID)
end;
function TiOSClipboardCore.ReadPlainText: TArray<string>;
begin
Result := NSArrayToStrings(GetPasteboard.strings);
end;
function TiOSClipboardCore.GetFormats: TArray<TClipboardFormat>;
procedure CanonizeResult;
var
I: Integer;
begin
for I := Low(Result) to High(Result) do
Result[I] := RegisterFormat(Result[I].Handle, False);
end;
var
Dicts: array of CFDictionaryRef;
FormatSet: Pointer;
KeyCount: Integer;
Keys: array of CFStringRef;
I, J: NSUInteger;
Items: NSArray;
Range: NSRange;
SetCallbacks: CFSetCallBacks;
begin
{ UIPasteboard.pasteboardTypes is documented to only return the first item's types.
Which is a pain... }
Items := Pasteboard.items;
Range.location := 0;
Range.length := Items.count;
if Range.length = 0 then Exit(nil);
SetLength(Dicts, Range.length);
Items.getObjects(Dicts, Range);
//if there's only one dictionary then output its keys to Result and exit
if Range.length = 1 then
begin
SetLength(Result, CFDictionaryGetCount(Dicts[0]));
CFDictionaryGetKeysAndValues(Dicts[0], Result, nil);
CanonizeResult;
Exit;
end;
//otherwise build up a set of keys
SetCallbacks := kCFTypeSetCallBacks;
FormatSet := CFSetCreateMutable(nil, 0, @SetCallbacks);
for I := 0 to Range.length - 1 do
begin
KeyCount := CFDictionaryGetCount(Dicts[I]);
if Length(Keys) < KeyCount then
begin
Keys := nil;
SetLength(Keys, KeyCount);
end;
CFDictionaryGetKeysAndValues(Dicts[I], Keys, nil);
for J := 0 to KeyCount - 1 do
CFSetAddValue(FormatSet, Keys[J]);
end;
//get the combined list
SetLength(Result, CFSetGetCount(FormatSet));
CFSetGetValues(FormatSet, Result);
CanonizeResult;
end;
function TiOSClipboardCore.HasFormat(Format: TClipboardFormat): Boolean;
begin
Result := Pasteboard.containsPasteboardTypes(ClipboardFormatsToNSArray([Format]), nil)
end;
function TiOSClipboardCore.HasFormat(const Formats: array of TClipboardFormat;
var Matched: TClipboardFormat): Boolean;
var
DictRef: CFDictionaryRef;
Key, Possible: TClipboardFormat;
Keys: array of TClipboardFormat;
Indices: NSIndexSet;
Pasteboard: UIPasteboard;
begin
Pasteboard := GetPasteboard;
Indices := Pasteboard.itemSetWithPasteboardTypes(ClipboardFormatsToNSArray(Formats));
if (Indices = nil) or (Indices.count = 0) then Exit(False);
DictRef := Pasteboard.items.objectAtIndex(Indices.firstIndex);
SetLength(Keys, CFDictionaryGetCount(DictRef));
CFDictionaryGetKeysAndValues(DictRef, Keys, nil);
for Key in Keys do
for Possible in Formats do
if Key = Possible then
begin
Matched := Possible;
Result := True;
Exit;
end;
Result := False;
end;
{ writing }
procedure TiOSClipboardCore.NeedItem(const NewIfHasFormat: array of TClipboardFormat);
var
F: TClipboardFormat;
ID: Pointer;
begin
if FCurrentItem <> nil then
begin
for F in NewIfHasFormat do
if FCurrentItem.objectForKey(CFStringRef(F)) <> nil then
begin
FCurrentItem := nil;
Break;
end;
if FCurrentItem <> nil then Exit;
end;
ID := TNSMutableDictionary.OCClass.dictionaryWithCapacity(Min(1, Length(NewIfHasFormat)));
FToAdd.addObject(ID);
FCurrentItem := TNSMutableDictionary.Wrap(ID);
end;
procedure TiOSClipboardCore.NewFormatSet;
begin
FCurrentItem := nil;
end;
procedure TiOSClipboardCore.AssignNSObject(const Format: TClipboardFormat; const ObjID: Pointer);
begin
NeedItem([Format]);
FCurrentItem.setObject(ObjID, CFStringRef(Format));
end;
procedure TiOSClipboardCore.WriteBytes(const Format: TClipboardFormat;
const Renderer: TFunc<TBytes>; PreferDelayed: Boolean);
var
Bytes: TBytes;
begin
Bytes := Renderer;
AssignNSObject(Format, TNSData.OCClass.dataWithBytes(Bytes, Length(Bytes)));
end;
procedure TiOSClipboardCore.WriteFileName(const Renderer: TFunc<TFileName>; PreferDelayed: Boolean);
begin
AssignNSObject(cfFileName, TNSURL.OCClass.fileURLWithPath(StrToNSString(Renderer)));
end;
procedure TiOSClipboardCore.WritePlainText(const Renderer: TFunc<string>; PreferDelayed: Boolean);
var
S: string;
begin
S := Renderer;
AssignNSObject(cfUTF8Text, TNSString.OCClass.stringWithCharacters(PChar(S), Length(S)));
end;
procedure TiOSClipboardCore.WriteURL(const Renderer: TFunc<string>; PreferDelayed: Boolean);
begin
AssignNSObject(cfURL, TNSURL.OCClass.URLWithString(StrToNSString(Renderer)));
end;
{$ELSE}
function MakeFileURLPromiseFunc(const Pasteboard: NSPasteboard;
const Details: TVirtualFileDetails; const RenderProc: TProc<TStream>): TGetPasteboardDataEvent;
var
LDetails: TVirtualFileDetails;
begin
LDetails := Details;
Result :=
procedure (const NSType: NSString; const Item: NSPasteboardItem)
var
CBoard: PasteboardRef;
DestPath, DestName, DestExt, FullName: string;
CFStr: CFStringRef;
I: Integer;
Stream: TFileStream;
URL: CFURLRef;
begin
CBoard := nil;
OSStatusCheck(PasteboardCreate((Pasteboard.name as ILocalObject).GetObjectID, CBoard));
try
OSStatusCheck(PasteboardSynchronize(CBoard));
{ Allow for the paste location not being set to support ResolveOutstandingPromisesToOS }
if PasteboardCopyPasteLocation(CBoard, URL) <> 0 then
URL := nil;
CFStr := nil;
try
if URL = nil then
DestPath := IncludeTrailingPathDelimiter(TPath.GetTempPath)
else
begin
{ Path returned from Finder will be a 'file ref' rather than a POSIX-style path;
CFURLCopyFileSystemPath will convert accordingly }
CFStr := CFURLCopyFileSystemPath(URL, kCFURLPOSIXPathStyle);
DestPath := IncludeTrailingPathDelimiter(CFStringGetValue(CFStr));
CFReleaseAndNil(CFStr);
end;
DestName := ChangeFileExt(ExtractFileName(LDetails.FileName), '');
DestExt := ExtractFileExt(LDetails.FileName);