e5cf8ff7fb
This is the initial release of iFreeRDP the FreeRDP iOS client. Build instructions can be found in docs/README.ios.
307 lines
8.6 KiB
Objective-C
307 lines
8.6 KiB
Objective-C
/*
|
|
RDP Keyboard helper
|
|
|
|
Copyright 2013 Thinstuff Technologies GmbH, Author: Martin Fleisz
|
|
|
|
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/.
|
|
*/
|
|
|
|
#import "RDPKeyboard.h"
|
|
#include <freerdp/locale/keyboard.h>
|
|
|
|
@interface RDPKeyboard (Private)
|
|
- (void)sendVirtualKey:(int)vKey up:(BOOL)up;
|
|
- (void)handleSpecialKey:(int)character;
|
|
- (void)handleAlphaNumChar:(int)character;
|
|
- (void)notifyDelegateModifiersChanged;
|
|
@end
|
|
|
|
@implementation RDPKeyboard
|
|
|
|
@synthesize delegate = _delegate, ctrlPressed = _ctrl_pressed, altPressed = _alt_pressed, shiftPressed = _shift_pressed, winPressed = _win_pressed;
|
|
|
|
- (id)init
|
|
{
|
|
if((self = [super init]) != nil)
|
|
{
|
|
[self initWithSession:nil delegate:nil];
|
|
|
|
memset(_virtual_key_map, 0, sizeof(_virtual_key_map));
|
|
memset(_unicode_map, 0, sizeof(_unicode_map));
|
|
|
|
// init vkey map - used for alpha-num characters
|
|
_virtual_key_map['0'] = VK_KEY_0;
|
|
_virtual_key_map['1'] = VK_KEY_1;
|
|
_virtual_key_map['2'] = VK_KEY_2;
|
|
_virtual_key_map['3'] = VK_KEY_3;
|
|
_virtual_key_map['4'] = VK_KEY_4;
|
|
_virtual_key_map['5'] = VK_KEY_5;
|
|
_virtual_key_map['6'] = VK_KEY_6;
|
|
_virtual_key_map['7'] = VK_KEY_7;
|
|
_virtual_key_map['8'] = VK_KEY_8;
|
|
_virtual_key_map['9'] = VK_KEY_9;
|
|
|
|
_virtual_key_map['a'] = VK_KEY_A;
|
|
_virtual_key_map['b'] = VK_KEY_B;
|
|
_virtual_key_map['c'] = VK_KEY_C;
|
|
_virtual_key_map['d'] = VK_KEY_D;
|
|
_virtual_key_map['e'] = VK_KEY_E;
|
|
_virtual_key_map['f'] = VK_KEY_F;
|
|
_virtual_key_map['g'] = VK_KEY_G;
|
|
_virtual_key_map['h'] = VK_KEY_H;
|
|
_virtual_key_map['i'] = VK_KEY_I;
|
|
_virtual_key_map['j'] = VK_KEY_J;
|
|
_virtual_key_map['k'] = VK_KEY_K;
|
|
_virtual_key_map['l'] = VK_KEY_L;
|
|
_virtual_key_map['m'] = VK_KEY_M;
|
|
_virtual_key_map['n'] = VK_KEY_N;
|
|
_virtual_key_map['o'] = VK_KEY_O;
|
|
_virtual_key_map['p'] = VK_KEY_P;
|
|
_virtual_key_map['q'] = VK_KEY_Q;
|
|
_virtual_key_map['r'] = VK_KEY_R;
|
|
_virtual_key_map['s'] = VK_KEY_S;
|
|
_virtual_key_map['t'] = VK_KEY_T;
|
|
_virtual_key_map['u'] = VK_KEY_U;
|
|
_virtual_key_map['v'] = VK_KEY_V;
|
|
_virtual_key_map['w'] = VK_KEY_W;
|
|
_virtual_key_map['x'] = VK_KEY_X;
|
|
_virtual_key_map['y'] = VK_KEY_Y;
|
|
_virtual_key_map['z'] = VK_KEY_Z;
|
|
|
|
// init scancode map - used for special characters
|
|
_unicode_map['-'] = 45;
|
|
_unicode_map['/'] = 47;
|
|
_unicode_map[':'] = 58;
|
|
_unicode_map[';'] = 59;
|
|
_unicode_map['('] = 40;
|
|
_unicode_map[')'] = 41;
|
|
_unicode_map['&'] = 38;
|
|
_unicode_map['@'] = 64;
|
|
_unicode_map['.'] = 46;
|
|
_unicode_map[','] = 44;
|
|
_unicode_map['?'] = 63;
|
|
_unicode_map['!'] = 33;
|
|
_unicode_map['\''] = 39;
|
|
_unicode_map['\"'] = 34;
|
|
|
|
_unicode_map['['] = 91;
|
|
_unicode_map[']'] = 93;
|
|
_unicode_map['{'] = 123;
|
|
_unicode_map['}'] = 125;
|
|
_unicode_map['#'] = 35;
|
|
_unicode_map['%'] = 37;
|
|
_unicode_map['^'] = 94;
|
|
_unicode_map['*'] = 42;
|
|
_unicode_map['+'] = 43;
|
|
_unicode_map['='] = 61;
|
|
|
|
_unicode_map['_'] = 95;
|
|
_unicode_map['\\'] = 92;
|
|
_unicode_map['|'] = 124;
|
|
_unicode_map['~'] = 126;
|
|
_unicode_map['<'] = 60;
|
|
_unicode_map['>'] = 62;
|
|
_unicode_map['$'] = 36;
|
|
}
|
|
return self;
|
|
}
|
|
|
|
- (void)dealloc
|
|
{
|
|
[super dealloc];
|
|
}
|
|
|
|
#pragma mark -
|
|
#pragma mark class methods
|
|
|
|
// return a keyboard instance
|
|
+ (RDPKeyboard*)getSharedRDPKeyboard
|
|
{
|
|
static RDPKeyboard* _shared_keyboard = nil;
|
|
|
|
if (_shared_keyboard == nil)
|
|
{
|
|
@synchronized(self)
|
|
{
|
|
if (_shared_keyboard == nil)
|
|
_shared_keyboard = [[RDPKeyboard alloc] init];
|
|
}
|
|
}
|
|
|
|
return _shared_keyboard;
|
|
}
|
|
|
|
// reset the keyboard instance and assign the given rdp instance
|
|
- (void)initWithSession:(RDPSession *)session delegate:(NSObject<RDPKeyboardDelegate> *)delegate
|
|
{
|
|
_alt_pressed = NO;
|
|
_ctrl_pressed = NO;
|
|
_shift_pressed = NO;
|
|
_win_pressed = NO;
|
|
|
|
_session = session;
|
|
_delegate = delegate;
|
|
}
|
|
|
|
- (void)reset
|
|
{
|
|
// reset pressed ctrl, alt, shift or win key
|
|
if(_shift_pressed)
|
|
[self toggleShiftKey];
|
|
if(_alt_pressed)
|
|
[self toggleAltKey];
|
|
if(_ctrl_pressed)
|
|
[self toggleCtrlKey];
|
|
if(_win_pressed)
|
|
[self toggleWinKey];
|
|
}
|
|
|
|
// handles button pressed input event from the iOS keyboard
|
|
// performs all conversions etc.
|
|
- (void)sendUnicode:(int)character
|
|
{
|
|
if(isalnum(character))
|
|
[self handleAlphaNumChar:character];
|
|
else
|
|
[self handleSpecialKey:character];
|
|
|
|
[self reset];
|
|
}
|
|
|
|
// send a backspace key press
|
|
- (void)sendVirtualKeyCode:(int)keyCode
|
|
{
|
|
[self sendVirtualKey:keyCode up:NO];
|
|
[self sendVirtualKey:keyCode up:YES];
|
|
}
|
|
|
|
#pragma mark modifier key handling
|
|
// toggle ctrl key, returns true if pressed, otherwise false
|
|
- (void)toggleCtrlKey
|
|
{
|
|
[self sendVirtualKey:VK_LCONTROL up:_ctrl_pressed];
|
|
_ctrl_pressed = !_ctrl_pressed;
|
|
[self notifyDelegateModifiersChanged];
|
|
}
|
|
|
|
// toggle alt key, returns true if pressed, otherwise false
|
|
- (void)toggleAltKey
|
|
{
|
|
[self sendVirtualKey:VK_LMENU up:_alt_pressed];
|
|
_alt_pressed = !_alt_pressed;
|
|
[self notifyDelegateModifiersChanged];
|
|
}
|
|
|
|
// toggle shift key, returns true if pressed, otherwise false
|
|
- (void)toggleShiftKey
|
|
{
|
|
[self sendVirtualKey:VK_LSHIFT up:_shift_pressed];
|
|
_shift_pressed = !_shift_pressed;
|
|
[self notifyDelegateModifiersChanged];
|
|
}
|
|
|
|
// toggle windows key, returns true if pressed, otherwise false
|
|
- (void)toggleWinKey
|
|
{
|
|
[self sendVirtualKey:VK_LWIN up:_win_pressed];
|
|
_win_pressed = !_win_pressed;
|
|
[self notifyDelegateModifiersChanged];
|
|
}
|
|
|
|
#pragma mark Sending special key strokes
|
|
|
|
- (void)sendEnterKeyStroke
|
|
{
|
|
[self sendVirtualKeyCode:VK_RETURN];
|
|
}
|
|
|
|
- (void)sendEscapeKeyStroke
|
|
{
|
|
[self sendVirtualKeyCode:VK_ESCAPE];
|
|
}
|
|
|
|
- (void)sendBackspaceKeyStroke
|
|
{
|
|
[self sendVirtualKeyCode:VK_BACK];
|
|
}
|
|
|
|
@end
|
|
|
|
#pragma mark -
|
|
@implementation RDPKeyboard (Private)
|
|
|
|
- (void)handleAlphaNumChar:(int)character
|
|
{
|
|
// if we recive an uppercase letter - make it lower and send an shift down event to server
|
|
BOOL shift_was_sent = NO;
|
|
if(isupper(character) && _shift_pressed == NO)
|
|
{
|
|
character = tolower(character);
|
|
[self sendVirtualKey:VK_SHIFT up:NO];
|
|
shift_was_sent = YES;
|
|
}
|
|
|
|
// convert the character to a VK
|
|
int vk = _virtual_key_map[character];
|
|
if(vk != 0)
|
|
{
|
|
// send key pressed
|
|
[self sendVirtualKey:vk up:NO];
|
|
[self sendVirtualKey:vk up:YES];
|
|
}
|
|
|
|
// send the missing shift up if we had a shift down
|
|
if(shift_was_sent)
|
|
[self sendVirtualKey:VK_SHIFT up:YES];
|
|
}
|
|
|
|
- (void)handleSpecialKey:(int)character
|
|
{
|
|
NSDictionary* eventDescriptor = nil;
|
|
if(character < 256)
|
|
{
|
|
// convert the character to a unicode character
|
|
int code = _unicode_map[character];
|
|
if(code != 0)
|
|
eventDescriptor = [NSDictionary dictionaryWithObjectsAndKeys:
|
|
@"keyboard", @"type",
|
|
@"unicode", @"subtype",
|
|
[NSNumber numberWithUnsignedShort:0], @"flags",
|
|
[NSNumber numberWithUnsignedShort:code], @"unicode_char",
|
|
nil];
|
|
}
|
|
|
|
if (eventDescriptor == nil)
|
|
eventDescriptor = [NSDictionary dictionaryWithObjectsAndKeys:
|
|
@"keyboard", @"type",
|
|
@"unicode", @"subtype",
|
|
[NSNumber numberWithUnsignedShort:0], @"flags",
|
|
[NSNumber numberWithUnsignedShort:character], @"unicode_char",
|
|
nil];
|
|
|
|
[_session sendInputEvent:eventDescriptor];
|
|
}
|
|
|
|
// sends the vk code to the session
|
|
- (void)sendVirtualKey:(int)vKey up:(BOOL)up
|
|
{
|
|
RDP_SCANCODE scancode = freerdp_keyboard_get_rdp_scancode_from_virtual_key_code(vKey);
|
|
int flags = (up ? KBD_FLAGS_RELEASE : KBD_FLAGS_DOWN);
|
|
flags |= (RDP_SCANCODE_EXTENDED(scancode) ? KBD_FLAGS_EXTENDED : 0);
|
|
[_session sendInputEvent:[NSDictionary dictionaryWithObjectsAndKeys:
|
|
@"keyboard", @"type",
|
|
@"scancode", @"subtype",
|
|
[NSNumber numberWithUnsignedShort:flags], @"flags",
|
|
[NSNumber numberWithUnsignedShort:RDP_SCANCODE_CODE(scancode)], @"scancode",
|
|
nil]];
|
|
}
|
|
|
|
- (void)notifyDelegateModifiersChanged
|
|
{
|
|
if ([[self delegate] respondsToSelector:@selector(modifiersChangedForKeyboard:)])
|
|
[[self delegate] modifiersChangedForKeyboard:self];
|
|
}
|
|
|
|
@end
|