git.maemo.org Git - presencevnc/blob - src/vncview.cpp

   1 /****************************************************************************
   2 **
   3 ** Copyright (C) 2007-2008 Urs Wolfer <uwolfer @ kde.org>
   4 **
   5 ** This file is part of KDE.
   6 **
   7 ** This program is free software; you can redistribute it and/or modify
   8 ** it under the terms of the GNU General Public License as published by
   9 ** the Free Software Foundation; either version 2 of the License, or
  10 ** (at your option) any later version.
  11 **
  12 ** This program is distributed in the hope that it will be useful,
  13 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15 ** GNU General Public License for more details.
  16 **
  17 ** You should have received a copy of the GNU General Public License
  18 ** along with this program; see the file COPYING. If not, write to
  19 ** the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20 ** Boston, MA 02110-1301, USA.
  21 **
  22 ****************************************************************************/
  23
  24 #include "vncview.h"
  25
  26 #include <QMessageBox>
  27 #include <QInputDialog>
  28 #define KMessageBox QMessageBox
  29 #define error(parent, message, caption) \
  30 critical(parent, caption, message)
  31
  32 #include <QApplication>
  33 #include <QImage>
  34 #include <QPainter>
  35 #include <QMouseEvent>
  36 #include <QEvent>
  37 #include <QSettings>
  38 #include <QTime>
  39 #include <QTimer>
  40
  41 // Definition of key modifier mask constants
  42 #define KMOD_Alt_R      0x01
  43 #define KMOD_Alt_L      0x02
  44 #define KMOD_Meta_L     0x04
  45 #define KMOD_Control_L  0x08
  46 #define KMOD_Shift_L    0x10
  47
  48 VncView::VncView(QWidget *parent, const KUrl &url, RemoteView::Quality quality)
  49         : RemoteView(parent),
  50         m_initDone(false),
  51         m_buttonMask(0),
  52         cursor_x(0),
  53         cursor_y(0),
  54         m_repaint(false),
  55         m_quitFlag(false),
  56         m_firstPasswordTry(true),
  57         m_dontSendClipboard(false),
  58         m_horizontalFactor(1.0),
  59         m_verticalFactor(1.0),
  60         m_forceLocalCursor(false),
  61         force_full_repaint(false),
  62         quality(quality)
  63 {
  64     m_url = url;
  65     m_host = url.host();
  66     m_port = url.port();
  67
  68     connect(&vncThread, SIGNAL(imageUpdated(int, int, int, int)), this, SLOT(updateImage(int, int, int, int)), Qt::BlockingQueuedConnection);
  69     connect(&vncThread, SIGNAL(gotCut(const QString&)), this, SLOT(setCut(const QString&)), Qt::BlockingQueuedConnection);
  70     connect(&vncThread, SIGNAL(passwordRequest()), this, SLOT(requestPassword()), Qt::BlockingQueuedConnection);
  71     connect(&vncThread, SIGNAL(outputErrorMessage(QString)), this, SLOT(outputErrorMessage(QString)));
  72
  73     m_clipboard = QApplication::clipboard();
  74     connect(m_clipboard, SIGNAL(selectionChanged()), this, SLOT(clipboardSelectionChanged()));
  75     connect(m_clipboard, SIGNAL(dataChanged()), this, SLOT(clipboardDataChanged()));
  76
  77     reloadSettings();
  78 }
  79
  80 VncView::~VncView()
  81 {
  82     unpressModifiers();
  83
  84     // Disconnect all signals so that we don't get any more callbacks from the client thread
  85     vncThread.disconnect();
  86
  87     startQuitting();
  88 }
  89
  90 void VncView::forceFullRepaint()
  91 {
  92         kDebug(5011) << "forceFullRepaint()";
  93         force_full_repaint = true;
  94         repaint();
  95 }
  96
  97 bool VncView::eventFilter(QObject *obj, QEvent *event)
  98 {
  99     if (m_viewOnly) {
 100         if (event->type() == QEvent::KeyPress ||
 101                 event->type() == QEvent::KeyRelease ||
 102                 event->type() == QEvent::MouseButtonDblClick ||
 103                 event->type() == QEvent::MouseButtonPress ||
 104                 event->type() == QEvent::MouseButtonRelease ||
 105                 event->type() == QEvent::Wheel ||
 106                 event->type() == QEvent::MouseMove)
 107             return true;
 108     }
 109     if(event->type() == 200)
 110             kDebug(5011) << "eventFilter: 200";
 111     return RemoteView::eventFilter(obj, event);
 112 }
 113
 114 QSize VncView::framebufferSize()
 115 {
 116     return m_frame.size();
 117 }
 118
 119 QSize VncView::sizeHint() const
 120 {
 121     return size();
 122 }
 123
 124 QSize VncView::minimumSizeHint() const
 125 {
 126     return size();
 127 }
 128
 129 void VncView::scaleResize(int w, int h)
 130 {
 131     RemoteView::scaleResize(w, h);
 132
 133     kDebug(5011) << "scaleResize(): " <<w << h;
 134     if (m_scale) {
 135         m_verticalFactor = (qreal) h / m_frame.height();
 136         m_horizontalFactor = (qreal) w / m_frame.width();
 137
 138         m_verticalFactor = m_horizontalFactor = qMin(m_verticalFactor, m_horizontalFactor);
 139
 140         const qreal newW = m_frame.width() * m_horizontalFactor;
 141         const qreal newH = m_frame.height() * m_verticalFactor;
 142         /*
 143         setMaximumSize(newW, newH); //This is a hack to force Qt to center the view in the scroll area
 144         //also causes the widget's size to flicker
 145         */
 146         resize(newW, newH);
 147     }
 148 }
 149
 150
 151 void VncView::startQuitting()
 152 {
 153     kDebug(5011) << "about to quit";
 154
 155     const bool connected = status() == RemoteView::Connected;
 156
 157     setStatus(Disconnecting);
 158
 159     m_quitFlag = true;
 160
 161     if (connected) {
 162         vncThread.stop();
 163     }
 164
 165     vncThread.quit();
 166
 167     const bool quitSuccess = vncThread.wait(500);
 168
 169     kDebug(5011) << "startQuitting(): Quit VNC thread success:" << quitSuccess;
 170
 171     setStatus(Disconnected);
 172 }
 173
 174 bool VncView::isQuitting()
 175 {
 176     return m_quitFlag;
 177 }
 178
 179 bool VncView::start()
 180 {
 181     vncThread.setHost(m_host);
 182     vncThread.setPort(m_port);
 183
 184     vncThread.setQuality(quality);
 185
 186     // set local cursor on by default because low quality mostly means slow internet connection
 187     if (quality == RemoteView::Low) {
 188         showDotCursor(RemoteView::CursorOn);
 189     }
 190
 191     setStatus(Connecting);
 192
 193     vncThread.start();
 194     return true;
 195 }
 196
 197 bool VncView::supportsScaling() const
 198 {
 199     return true;
 200 }
 201
 202 bool VncView::supportsLocalCursor() const
 203 {
 204     return true;
 205 }
 206
 207 void VncView::requestPassword()
 208 {
 209     kDebug(5011) << "request password";
 210
 211     setStatus(Authenticating);
 212
 213     if (!m_url.password().isNull()) {
 214         vncThread.setPassword(m_url.password());
 215         return;
 216     }
 217
 218     bool ok;
 219     QString password = QInputDialog::getText(this, //krazy:exclude=qclasses
 220                                              tr("Password required"),
 221                                              tr("Please enter the password for the remote desktop:"),
 222                                              QLineEdit::Password, QString(), &ok);
 223     m_firstPasswordTry = false;
 224     if (ok) {
 225         vncThread.setPassword(password);
 226     } else {
 227         startQuitting();
 228     }
 229 }
 230
 231 void VncView::outputErrorMessage(const QString &message)
 232 {
 233     kDebug(5011) << message;
 234
 235     if (message == "INTERNAL:APPLE_VNC_COMPATIBILTY") {
 236         setCursor(localDotCursor());
 237         m_forceLocalCursor = true;
 238         return;
 239     }
 240
 241     startQuitting();
 242
 243     emit errorMessage(i18n("VNC failure"), message);
 244 }
 245
 246 void VncView::updateImage(int x, int y, int w, int h)
 247 {
 248 //     kDebug(5011) << "got update" << width() << height();
 249
 250     m_x = x;
 251     m_y = y;
 252     m_w = w;
 253     m_h = h;
 254
 255     if (m_horizontalFactor != 1.0 || m_verticalFactor != 1.0) {
 256         // If the view is scaled, grow the update rectangle to avoid artifacts
 257         m_x-=1;
 258         m_y-=1;
 259         m_w+=2;
 260         m_h+=2;
 261     }
 262
 263     m_frame = vncThread.image();
 264
 265     if (!m_initDone) {
 266         setAttribute(Qt::WA_StaticContents);
 267         setAttribute(Qt::WA_OpaquePaintEvent);
 268         installEventFilter(this);
 269
 270         setCursor(((m_dotCursorState == CursorOn) || m_forceLocalCursor) ? localDotCursor() : Qt::BlankCursor);
 271
 272         setMouseTracking(true); // get mouse events even when there is no mousebutton pressed
 273         setFocusPolicy(Qt::WheelFocus);
 274         setStatus(Connected);
 275 //         emit framebufferSizeChanged(m_frame.width(), m_frame.height());
 276         emit connected();
 277
 278         if (m_scale) {
 279             if (parentWidget())
 280                 scaleResize(parentWidget()->width(), parentWidget()->height());
 281             else
 282                 scaleResize(width(), height());
 283         }
 284
 285         m_initDone = true;
 286
 287     }
 288
 289         static QSize old_frame_size = QSize();
 290     if ((y == 0 && x == 0) && (m_frame.size() != old_frame_size)) {
 291             old_frame_size = m_frame.size();
 292         kDebug(5011) << "Updating framebuffer size";
 293         if (m_scale) {
 294             //setMaximumSize(QSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX));
 295             if (parentWidget())
 296                 scaleResize(parentWidget()->width(), parentWidget()->height());
 297         } else {
 298             kDebug(5011) << "Resizing: " << m_frame.width() << m_frame.height();
 299             resize(m_frame.width(), m_frame.height());
 300             //setMaximumSize(m_frame.width(), m_frame.height()); //This is a hack to force Qt to center the view in the scroll area
 301             //setMinimumSize(m_frame.width(), m_frame.height());
 302         }
 303         emit framebufferSizeChanged(m_frame.width(), m_frame.height());
 304     }
 305
 306     m_repaint = true;
 307     repaint(qRound(m_x * m_horizontalFactor), qRound(m_y * m_verticalFactor), qRound(m_w * m_horizontalFactor), qRound(m_h * m_verticalFactor));
 308     m_repaint = false;
 309 }
 310
 311 void VncView::setViewOnly(bool viewOnly)
 312 {
 313     RemoteView::setViewOnly(viewOnly);
 314
 315     m_dontSendClipboard = viewOnly;
 316
 317     if (viewOnly)
 318         setCursor(Qt::ArrowCursor);
 319     else
 320         setCursor(m_dotCursorState == CursorOn ? localDotCursor() : Qt::BlankCursor);
 321 }
 322
 323 void VncView::showDotCursor(DotCursorState state)
 324 {
 325     RemoteView::showDotCursor(state);
 326
 327     setCursor(state == CursorOn ? localDotCursor() : Qt::BlankCursor);
 328 }
 329
 330 void VncView::enableScaling(bool scale)
 331 {
 332     RemoteView::enableScaling(scale);
 333
 334     if (scale) {
 335         //setMaximumSize(QSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX));
 336         //setMinimumSize(1, 1);
 337         if (parentWidget())
 338             scaleResize(parentWidget()->width(), parentWidget()->height());
 339             else
 340                 scaleResize(width(), height());
 341     } else {
 342         m_verticalFactor = 1.0;
 343         m_horizontalFactor = 1.0;
 344
 345         //setMaximumSize(m_frame.width(), m_frame.height()); //This is a hack to force Qt to center the view in the scroll area
 346         //setMinimumSize(m_frame.width(), m_frame.height());
 347         resize(m_frame.width(), m_frame.height());
 348     }
 349 }
 350
 351 void VncView::setCut(const QString &text)
 352 {
 353     m_dontSendClipboard = true;
 354     m_clipboard->setText(text, QClipboard::Clipboard);
 355     m_clipboard->setText(text, QClipboard::Selection);
 356     m_dontSendClipboard = false;
 357 }
 358
 359 void VncView::paintEvent(QPaintEvent *event)
 360 {
 361      //kDebug(5011) << "paint event: x: " << m_x << ", y: " << m_y << ", w: " << m_w << ", h: " << m_h;
 362     if (m_frame.isNull() || m_frame.format() == QImage::Format_Invalid) {
 363         kDebug(5011) << "no valid image to paint";
 364         RemoteView::paintEvent(event);
 365         return;
 366     }
 367
 368     event->accept();
 369
 370     QPainter painter(this);
 371
 372     if (m_repaint and !force_full_repaint) {
 373 //         kDebug(5011) << "normal repaint";
 374         painter.drawImage(QRect(qRound(m_x*m_horizontalFactor), qRound(m_y*m_verticalFactor),
 375                                 qRound(m_w*m_horizontalFactor), qRound(m_h*m_verticalFactor)),
 376                           m_frame.copy(m_x, m_y, m_w, m_h).scaled(qRound(m_w*m_horizontalFactor),
 377                                                                   qRound(m_h*m_verticalFactor),
 378                                                                   Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
 379     } else {
 380          kDebug(5011) << "resize repaint";
 381         QRect rect = event->rect();
 382         if (!force_full_repaint and (rect.width() != width() || rect.height() != height())) {
 383              kDebug(5011) << "Partial repaint";
 384             const int sx = rect.x()/m_horizontalFactor;
 385             const int sy = rect.y()/m_verticalFactor;
 386             const int sw = rect.width()/m_horizontalFactor;
 387             const int sh = rect.height()/m_verticalFactor;
 388             painter.drawImage(rect,
 389                               m_frame.copy(sx, sy, sw, sh).scaled(rect.width(), rect.height(),
 390                                                                   Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
 391         } else {
 392              kDebug(5011) << "Full repaint" << width() << height() << m_frame.width() << m_frame.height();
 393             painter.drawImage(QRect(0, 0, width(), height()),
 394                               m_frame.scaled(m_frame.width() * m_horizontalFactor, m_frame.height() * m_verticalFactor,
 395                                              Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
 396             force_full_repaint = false;
 397         }
 398     }
 399
 400     RemoteView::paintEvent(event);
 401 }
 402
 403 void VncView::resizeEvent(QResizeEvent *event)
 404 {
 405     RemoteView::resizeEvent(event);
 406     scaleResize(event->size().width(), event->size().height());
 407     forceFullRepaint();
 408 }
 409
 410 bool VncView::event(QEvent *event)
 411 {
 412     switch (event->type()) {
 413     case QEvent::KeyPress:
 414     case QEvent::KeyRelease:
 415 //         kDebug(5011) << "keyEvent";
 416         keyEventHandler(static_cast<QKeyEvent*>(event));
 417         return true;
 418         break;
 419     case QEvent::MouseButtonDblClick:
 420     case QEvent::MouseButtonPress:
 421     case QEvent::MouseButtonRelease:
 422     case QEvent::MouseMove:
 423 //         kDebug(5011) << "mouseEvent";
 424         mouseEventHandler(static_cast<QMouseEvent*>(event));
 425         return true;
 426         break;
 427     case QEvent::Wheel:
 428 //         kDebug(5011) << "wheelEvent";
 429         wheelEventHandler(static_cast<QWheelEvent*>(event));
 430         return true;
 431         break;
 432     case QEvent::WindowActivate: //input panel may have been closed, prevent IM from interfering with hardware keyboard
 433         setAttribute(Qt::WA_InputMethodEnabled, false);
 434         //fall through
 435     default:
 436         return RemoteView::event(event);
 437     }
 438 }
 439
 440 //call with e == 0 to flush held events
 441 void VncView::mouseEventHandler(QMouseEvent *e)
 442 {
 443         static bool tap_detected = false;
 444         static bool double_tap_detected = false;
 445         static bool tap_drag_detected = false;
 446         static QTime press_time;
 447         static QTime up_time; //used for double clicks/tap&drag, for time after first tap
 448
 449         const int TAP_PRESS_TIME = 180;
 450         const int DOUBLE_TAP_UP_TIME = 500;
 451
 452         if(!e) { //flush held taps
 453                 if(tap_detected) {
 454                         m_buttonMask |= 0x01;
 455                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 456                         m_buttonMask &= 0xfe;
 457                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 458                         tap_detected = false;
 459                 } else if(double_tap_detected and press_time.elapsed() > TAP_PRESS_TIME) { //got tap + another press -> tap & drag
 460                         m_buttonMask |= 0x01;
 461                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 462                         double_tap_detected = false;
 463                         tap_drag_detected = true;
 464                 }
 465
 466                 return;
 467         }
 468
 469         if(e->x() < 0 or e->y() < 0) { //QScrollArea tends to send invalid events sometimes...
 470                 e->ignore();
 471                 return;
 472         }
 473
 474         cursor_x = qRound(e->x()/m_horizontalFactor);
 475         cursor_y = qRound(e->y()/m_verticalFactor);
 476         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask); // plain move event
 477
 478         if(disable_tapping) { //only move cursor
 479                 e->ignore();
 480                 return;
 481         }
 482
 483         if(e->type() == QEvent::MouseButtonPress or e->type() == QEvent::MouseButtonDblClick) {
 484                 press_time.start();
 485                 if(tap_detected and up_time.elapsed() < DOUBLE_TAP_UP_TIME) {
 486                         tap_detected = false;
 487                         double_tap_detected = true;
 488
 489                         QTimer::singleShot(TAP_PRESS_TIME, this, SLOT(mouseEventHandler()));
 490                 }
 491         } else if(e->type() == QEvent::MouseButtonRelease) {
 492                 if(tap_drag_detected) {
 493                         m_buttonMask &= 0xfe;
 494                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 495                         tap_drag_detected = false;
 496                 } else if(double_tap_detected) { //double click
 497                         double_tap_detected = false;
 498
 499                         m_buttonMask |= 0x01;
 500                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 501                         m_buttonMask &= 0xfe;
 502                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 503                         m_buttonMask |= 0x01;
 504                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 505                         m_buttonMask &= 0xfe;
 506                         vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 507                 } else if(press_time.elapsed() < TAP_PRESS_TIME) { //tap
 508                         up_time.start();
 509                         tap_detected = true;
 510                         QTimer::singleShot(DOUBLE_TAP_UP_TIME, this, SLOT(mouseEventHandler()));
 511                 }
 512
 513         }
 514
 515 /* for reference:
 516     if (e->type() != QEvent::MouseMove) {
 517         if ((e->type() == QEvent::MouseButtonPress)) {
 518             if (e->button() & Qt::LeftButton)
 519                 m_buttonMask |= 0x01;
 520             if (e->button() & Qt::MidButton)
 521                 m_buttonMask |= 0x02;
 522             if (e->button() & Qt::RightButton)
 523                 m_buttonMask |= 0x04;
 524         } else if (e->type() == QEvent::MouseButtonRelease) {
 525             if (e->button() & Qt::LeftButton)
 526                 m_buttonMask &= 0xfe;
 527             if (e->button() & Qt::MidButton)
 528                 m_buttonMask &= 0xfd;
 529             if (e->button() & Qt::RightButton)
 530                 m_buttonMask &= 0xfb;
 531         */
 532 }
 533
 534 void VncView::wheelEventHandler(QWheelEvent *event)
 535 {
 536     int eb = 0;
 537     if (event->delta() < 0)
 538         eb |= 0x10;
 539     else
 540         eb |= 0x8;
 541
 542     const int x = qRound(event->x() / m_horizontalFactor);
 543     const int y = qRound(event->y() / m_verticalFactor);
 544
 545         kDebug(5011) << "Wheelevent";
 546     vncThread.mouseEvent(x, y, eb | m_buttonMask);
 547     vncThread.mouseEvent(x, y, m_buttonMask);
 548 }
 549
 550 void VncView::keyEventHandler(QKeyEvent *e)
 551 {
 552     // strip away autorepeating KeyRelease; see bug #206598
 553     if (e->isAutoRepeat() && (e->type() == QEvent::KeyRelease))
 554         return;
 555
 556 // parts of this code are based on http://italc.sourcearchive.com/documentation/1.0.9.1/vncview_8cpp-source.html
 557     rfbKeySym k = e->nativeVirtualKey();
 558
 559     // we do not handle Key_Backtab separately as the Shift-modifier
 560     // is already enabled
 561     if (e->key() == Qt::Key_Backtab) {
 562         k = XK_Tab;
 563     }
 564
 565     const bool pressed = (e->type() == QEvent::KeyPress);
 566
 567     // handle modifiers
 568     if (k == XK_Shift_L || k == XK_Control_L || k == XK_Meta_L || k == XK_Alt_L) {
 569         if (pressed) {
 570             m_mods[k] = true;
 571         } else if (m_mods.contains(k)) {
 572             m_mods.remove(k);
 573         } else {
 574             unpressModifiers();
 575         }
 576     }
 577
 578
 579         int current_zoom = -1;
 580         if(e->key() == Qt::Key_F8)
 581                 current_zoom = left_zoom;
 582         else if(e->key() == Qt::Key_F7)
 583                 current_zoom = right_zoom;
 584         else if (k)
 585                 vncThread.keyEvent(k, pressed);
 586         else {
 587                 kDebug(5011) << "nativeVirtualKey() for '" << e->text() << "' failed.";
 588                 return;
 589         }
 590
 591         if(current_zoom == -1)
 592                 return;
 593
 594         //handle zoom buttons
 595         if(current_zoom == 0) { //left click
 596                 if(pressed)
 597                         m_buttonMask |= 0x01;
 598                 else
 599                         m_buttonMask &= 0xfe;
 600                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 601         } else if(current_zoom == 1) { //right click
 602                 if(pressed)
 603                         m_buttonMask |= 0x04;
 604                 else
 605                         m_buttonMask &= 0xfb;
 606                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 607         } else if(current_zoom == 2) { //middle click
 608                 if(pressed)
 609                         m_buttonMask |= 0x02;
 610                 else
 611                         m_buttonMask &= 0xfd;
 612                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 613         } else if(current_zoom == 3 and pressed) { //wheel up
 614                 int eb = 0x8;
 615                 vncThread.mouseEvent(cursor_x, cursor_y, eb | m_buttonMask);
 616                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 617         } else if(current_zoom == 4 and pressed) { //wheel down
 618                 int eb = 0x10;
 619                 vncThread.mouseEvent(cursor_x, cursor_y, eb | m_buttonMask);
 620                 vncThread.mouseEvent(cursor_x, cursor_y, m_buttonMask);
 621         } else if(current_zoom == 5) { //page up
 622                 vncThread.keyEvent(0xff55, pressed);
 623         } else if(current_zoom == 6) { //page down
 624                 vncThread.keyEvent(0xff56, pressed);
 625         }
 626 }
 627
 628 void VncView::unpressModifiers()
 629 {
 630     const QList<unsigned int> keys = m_mods.keys();
 631     QList<unsigned int>::const_iterator it = keys.constBegin();
 632     while (it != keys.end()) {
 633         vncThread.keyEvent(*it, false);
 634         it++;
 635     }
 636     m_mods.clear();
 637 }
 638
 639 void VncView::clipboardSelectionChanged()
 640 {
 641     kDebug(5011);
 642
 643     if (m_status != Connected)
 644         return;
 645
 646     if (m_clipboard->ownsSelection() || m_dontSendClipboard)
 647         return;
 648
 649     const QString text = m_clipboard->text(QClipboard::Selection);
 650
 651     vncThread.clientCut(text);
 652 }
 653
 654 void VncView::clipboardDataChanged()
 655 {
 656     kDebug(5011);
 657
 658     if (m_status != Connected)
 659         return;
 660
 661     if (m_clipboard->ownsClipboard() || m_dontSendClipboard)
 662         return;
 663
 664     const QString text = m_clipboard->text(QClipboard::Clipboard);
 665
 666     vncThread.clientCut(text);
 667 }
 668
 669 //fake key events
 670 void VncView::sendKey(Qt::Key key)
 671 {
 672         int k = 0; //X11 keysym
 673         switch(key) {
 674         case Qt::Key_Escape:
 675                 k = 0xff1b;
 676                 break;
 677         case Qt::Key_Tab:
 678                 k = 0xff09;
 679                 break;
 680         case Qt::Key_PageUp:
 681                 k = 0xff55;
 682                 break;
 683         case Qt::Key_PageDown:
 684                 k = 0xff56;
 685                 break;
 686         case Qt::Key_Meta: //TODO: test this.
 687                 k = XK_Super_L;
 688                 break;
 689         case Qt::Key_Alt:
 690                 k = XK_Alt_L;
 691                 break;
 692         default:
 693                 kDebug(5011) << "unhandled Qt::Key value " << key;
 694                 return;
 695         }
 696
 697         if (k == XK_Shift_L || k == XK_Control_L || k == XK_Meta_L || k == XK_Alt_L || k == XK_Super_L) {
 698                 if (m_mods.contains(k)) { //release
 699                         m_mods.remove(k);
 700                         vncThread.keyEvent(k, false);
 701                 } else { //press
 702                         m_mods[k] = true;
 703                         vncThread.keyEvent(k, true);
 704                 }
 705         } else { //normal key
 706                 vncThread.keyEvent(k, true);
 707                 vncThread.keyEvent(k, false);
 708         }
 709 }
 710
 711 void VncView::reloadSettings()
 712 {
 713         QSettings settings;
 714         left_zoom = settings.value("left_zoom", 0).toInt();
 715         right_zoom = settings.value("right_zoom", 1).toInt();
 716         disable_tapping = settings.value("disable_tapping", false).toBool();
 717 }
 718
 719 //convert commitString into keyevents
 720 void VncView::inputMethodEvent(QInputMethodEvent *event)
 721 {
 722         //TODO handle replacements
 723         //TODO convert utf8 to X11 keysyms myself, should work with umlauts, kana...
 724         //TODO Enter?
 725         QString letters = event->commitString();
 726         for(int i = 0; i < letters.length(); i++) {
 727                 char k = letters.at(i).toLatin1(); //works with all 'normal' keys, not umlauts.
 728                 if(!k) {
 729                         kDebug(5011) << "unhandled key";
 730                         continue;
 731                 }
 732                 vncThread.keyEvent(k, true);
 733                 vncThread.keyEvent(k, false);
 734         }
 735 }
 736
 737 #include "moc_vncview.cpp"