krfb/events.cpp

   1 /* This file is part of the KDE project
   2    Copyright (C) 2007 Alessandro Praduroux <pradu@pradu.it>
   3              (C) 2001-2003 by Tim Jansen <tim@tjansen.de>
   4
   5    This program is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU General Public
   7    License as published by the Free Software Foundation; version 2
   8    of the License.
   9 */
  10
  11
  12 #include <QApplication>
  13 #include <QX11Info>
  14 #include <QString>
  15 #include <QDesktopWidget>
  16 #include <QClipboard>
  17
  18 #include <KNotification>
  19
  20 #include "events.h"
  21 #include "connectioncontroller.h"
  22
  23 #include <X11/Xutil.h>
  24 #include <X11/extensions/XTest.h>
  25
  26
  27 Display *KeyboardEvent::dpy;
  28 signed char KeyboardEvent::modifiers[0x100];
  29 KeyCode KeyboardEvent::keycodes[0x100];
  30 KeyCode KeyboardEvent::leftShiftCode;
  31 KeyCode KeyboardEvent::rightShiftCode;
  32 KeyCode KeyboardEvent::altGrCode;
  33 const int KeyboardEvent::LEFTSHIFT = 1;
  34 const int KeyboardEvent::RIGHTSHIFT = 2;
  35 const int KeyboardEvent::ALTGR = 4;
  36 char KeyboardEvent::ModifierState;
  37 bool KeyboardEvent::initDone = false;
  38
  39
  40 KeyboardEvent::KeyboardEvent(bool d, KeySym k)
  41     : down(d), keySym(k)
  42 {
  43     initKeycodes();
  44 }
  45
  46 void KeyboardEvent::initKeycodes()
  47 {
  48     if (initDone) return;
  49     initDone = true;
  50     KeySym key,*keymap;
  51     int i,j,minkey,maxkey,syms_per_keycode;
  52
  53     dpy = QX11Info::display();
  54
  55     memset(modifiers,-1,sizeof(modifiers));
  56
  57     XDisplayKeycodes(dpy,&minkey,&maxkey);
  58     Q_ASSERT(minkey >= 8);
  59     Q_ASSERT(maxkey < 256);
  60     keymap = (KeySym*) XGetKeyboardMapping(dpy, minkey,
  61             (maxkey - minkey + 1),
  62             &syms_per_keycode);
  63     Q_ASSERT(keymap);
  64
  65     for (i = minkey; i <= maxkey; i++) {
  66         for (j=0; j<syms_per_keycode; j++) {
  67             key = keymap[(i-minkey)*syms_per_keycode+j];
  68             if (key>=' ' && key<0x100 && i==XKeysymToKeycode(dpy,key)) {
  69                 keycodes[key]=i;
  70                 modifiers[key]=j;
  71             }
  72         }
  73     }
  74
  75     leftShiftCode = XKeysymToKeycode(dpy, XK_Shift_L);
  76     rightShiftCode = XKeysymToKeycode(dpy, XK_Shift_R);
  77     altGrCode = XKeysymToKeycode(dpy, XK_Mode_switch);
  78
  79     XFree ((char *)keymap);
  80 }
  81
  82 /* this function adjusts the modifiers according to mod (as from modifiers) and ModifierState */
  83 void KeyboardEvent::tweakModifiers(signed char mod, bool down)
  84 {
  85
  86     bool isShift = ModifierState & (LEFTSHIFT|RIGHTSHIFT);
  87     if(mod < 0)
  88         return;
  89
  90     if(isShift && mod != 1) {
  91         if(ModifierState & LEFTSHIFT) {
  92             XTestFakeKeyEvent(dpy, leftShiftCode,
  93                             !down, CurrentTime);
  94         }
  95         if(ModifierState & RIGHTSHIFT) {
  96             XTestFakeKeyEvent(dpy, rightShiftCode,
  97                             !down, CurrentTime);
  98         }
  99     }
 100
 101     if(!isShift && mod==1) {
 102         XTestFakeKeyEvent(dpy, leftShiftCode,
 103                         down, CurrentTime);
 104     }
 105
 106     if((ModifierState&ALTGR) && mod != 2) {
 107         XTestFakeKeyEvent(dpy, altGrCode,
 108                         !down, CurrentTime);
 109     }
 110
 111     if(!(ModifierState&ALTGR) && mod==2) {
 112         XTestFakeKeyEvent(dpy, altGrCode,
 113                         down, CurrentTime);
 114     }
 115 }
 116
 117 void KeyboardEvent::exec() {
 118 #define ADJUSTMOD(sym,state) \
 119     if(keySym==sym) { if(down) ModifierState|=state; else ModifierState&=~state; }
 120
 121     ADJUSTMOD(XK_Shift_L,LEFTSHIFT);
 122     ADJUSTMOD(XK_Shift_R,RIGHTSHIFT);
 123     ADJUSTMOD(XK_Mode_switch,ALTGR);
 124
 125     if(keySym>=' ' && keySym<0x100) {
 126         KeyCode k;
 127         if (down) {
 128             tweakModifiers(modifiers[keySym],True);
 129         }
 130         k = keycodes[keySym];
 131         if (k != NoSymbol) {
 132             XTestFakeKeyEvent(dpy, k, down, CurrentTime);
 133         }
 134         if (down) {
 135             tweakModifiers(modifiers[keySym],False);
 136         }
 137     } else {
 138         KeyCode k = XKeysymToKeycode(dpy, keySym );
 139         if (k != NoSymbol) {
 140             XTestFakeKeyEvent(dpy, k, down, CurrentTime);
 141         }
 142     }
 143 }
 144
 145 bool PointerEvent::initialized = false;
 146 Display *PointerEvent::dpy;
 147 int PointerEvent::buttonMask = 0;
 148
 149 PointerEvent::PointerEvent(int b, int _x, int _y)
 150     : button_mask(b),x(_x),y(_y)
 151 {
 152     if (!initialized) {
 153         initialized = true;
 154         dpy = QX11Info::display();
 155         buttonMask = 0;
 156     }
 157 }
 158
 159 void PointerEvent::exec() {
 160     QDesktopWidget *desktopWidget = QApplication::desktop();
 161
 162     int screen = desktopWidget->screenNumber();
 163     if (screen < 0)
 164         screen = 0;
 165     XTestFakeMotionEvent(dpy, screen, x, y, CurrentTime);
 166
 167     for(int i = 0; i < 5; i++) {
 168         if ((buttonMask&(1<<i))!=(button_mask&(1<<i))) {
 169             XTestFakeButtonEvent(dpy,
 170                 i+1,
 171                 (button_mask&(1<<i))?True:False,
 172                 CurrentTime);
 173         }
 174     }
 175
 176     buttonMask = button_mask;
 177 }
 178
 179
 180 ClipboardEvent::ClipboardEvent(ConnectionController *c, const QString &ctext)
 181     :controller(c),text(ctext)
 182 {
 183 }
 184
 185 void ClipboardEvent::exec()
 186 {
 187 #if 0
 188     if ((controller->lastClipboardDirection == ConnectionController::LAST_SYNC_TO_CLIENT) &&
 189         (controller->lastClipboardText == text)) {
 190         return;
 191     }
 192     controller->lastClipboardDirection = ConnectionController::LAST_SYNC_TO_SERVER;
 193     controller->lastClipboardText = text;
 194
 195     controller->clipboard->setText(text, QClipboard::Clipboard);
 196     controller->clipboard->setText(text, QClipboard::Selection);
 197 #endif
 198 }
 199
 200
 201 VNCEvent::~ VNCEvent()
 202 {
 203 }