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VncDialog.cpp
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VncDialog.cpp
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/***********************************************************************
VncDialog - Class for dialogs that can interact with remote VNC servers.
Copyright (c) 2009 [email protected]
This file is part of the Virtual Reality User Interface Library (Vrui).
The Virtual Reality User Interface Library is free software; you can
redistribute it and/or modify it under the terms of the GNU General
Public License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
The Virtual Reality User Interface Library is distributed in the hope
that it will be useful, but WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with the Virtual Reality User Interface Library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA
***********************************************************************/
#include "VncDialog.h"
#include <GLMotif/WidgetManager.h>
#include <GLMotif/StyleSheet.h>
#include <GLMotif/RowColumn.h>
#include <GLMotif/Blind.h>
#include <Vrui/Vrui.h>
#include <ctype.h>
namespace Voltaic {
//----------------------------------------------------------------------
class UpperLeftCornerPreserver
{
public:
UpperLeftCornerPreserver(VncDialog* vncDialog) :
vncDialog(vncDialog)
{
if (vncDialog)
{
const GLMotif::Box priorExterior = vncDialog->getExterior();
priorUpperLeft[0] = priorExterior.origin[0];
priorUpperLeft[1] = (priorExterior.origin[1] + priorExterior.size[1]);
priorUpperLeft[2] = 0.0;
Vrui::getWidgetManager()->calcWidgetTransformation(vncDialog).transform(priorUpperLeft); // convert to world coordinates
}
}
~UpperLeftCornerPreserver()
{
if (vncDialog)
{
const GLMotif::WidgetManager::Transformation xform = Vrui::getWidgetManager()->calcWidgetTransformation(vncDialog);
GLMotif::Box exterior = vncDialog->getExterior();
const GLMotif::Point newUpperLeft(exterior.origin[0], (exterior.origin[1] + exterior.size[1]), 0.0);
xform.transform(newUpperLeft); // convert to world coordinates
if (newUpperLeft[1] != priorUpperLeft[1])
{
xform.inverseTransform(priorUpperLeft); // convert back to widget coordinates
exterior.origin[1] = priorUpperLeft[1] - exterior.size[1];
vncDialog->resize(exterior);
}
}
}
private:
VncDialog* const vncDialog;
GLMotif::Point priorUpperLeft;
};
//----------------------------------------------------------------------
void VncDialog::PasswordDialogCompletionCallback::keyboardDialogDidComplete(KeyboardDialog& keyboardDialog, bool cancelled)
{
std::string retrievedPassword;
if (!cancelled)
retrievedPassword = keyboardDialog.getBuffer();
keyboardDialog.getManager()->popdownWidget(&keyboardDialog);
keyboardDialog.getManager()->deleteWidget(&keyboardDialog);
if (vncDialog->passwordKeyboardDialog == &keyboardDialog)
vncDialog->passwordKeyboardDialog = 0;
if (vncDialog)
{
if (retrievedPassword.size() <= 0)
vncDialog->infoServerInitCompleted(false); // simulate failed connection
else
{
// Must be performed last before returning:
passwordRetrievalCompletionThunk.postPassword(retrievedPassword.c_str());
}
}
// The following is OK to do before returning...
VncManager::eraseStringContents(retrievedPassword);
}
//----------------------------------------------------------------------
VncDialog::VncDialog( const char* sName,
GLMotif::WidgetManager* sManager,
const char* hostname,
const char* password,
unsigned rfbPort,
bool initViaConnect,
const char* requestedEncodings,
bool sharedDesktopFlag,
bool enableClickThrough ) :
GLMotif::PopupWindow(sName, sManager, ""),
VncManager::MessageManager(),
VncManager::PasswordRetrievalThunk(),
serverInitFailed(false),
initViaConnect(initViaConnect),
hostname(hostname ? hostname : ""),
rfbPort(rfbPort),
requestedEncodings(requestedEncodings ? requestedEncodings : ""),
sharedDesktopFlag(sharedDesktopFlag),
enableClickThrough(enableClickThrough),
initializedWithPassword(password != 0),
password(password ? password : ""),
passwordCompletionCallback(0),
passwordKeyboardDialog(0),
vncWidget(0),
closeButton(0),
messageLabel(0)
{
// Create the popup window with the VncWidget and controls in it:
std::string title = "Connection to: ";
title += (hostname ? hostname : "(unknown)");
this->setTitleString(title.c_str());
{
GLMotif::RowColumn* const topRowCol = new GLMotif::RowColumn("topRowCol", this, false);
{
topRowCol->setOrientation(GLMotif::RowColumn::VERTICAL);
topRowCol->setPacking(GLMotif::RowColumn::PACK_TIGHT);
GLMotif::RowColumn* const controlsRowCol = new GLMotif::RowColumn("controlsRowCol", topRowCol, false);
{
controlsRowCol->setOrientation(GLMotif::RowColumn::HORIZONTAL);
controlsRowCol->setPacking(GLMotif::RowColumn::PACK_TIGHT);
closeButton = new GLMotif::Button("CloseButton", controlsRowCol, "Close");
messageLabel = new GLMotif::Label("Messages", controlsRowCol, "Ready");
new GLMotif::Blind("Blind1", controlsRowCol);
closeButton->getSelectCallbacks().add(this, &VncDialog::closeButtonCallback);
}
controlsRowCol->manageChild();
vncWidget = new VncWidget(*this, *this, !Vrui::isMaster(), Vrui::openPipe(), true, "VncWidget", topRowCol, false);
vncWidget->setBorderType(GLMotif::Widget::RAISED);
const GLfloat uiSize = vncWidget->getStyleSheet()->size;
vncWidget->setDisplaySizeMultipliers(uiSize/10.0, uiSize/10.0);
vncWidget->manageChild();
}
topRowCol->manageChild();
}
Vrui::popupPrimaryWidget(this, Vrui::getNavigationTransformation().transform(Vrui::getDisplayCenter()));
if (vncWidget)
{
vncWidget->setEnableClickThrough(enableClickThrough);
VncManager::RFBProtocolStartupData rfbProtocolStartupData;
rfbProtocolStartupData.initViaConnect = this->initViaConnect;
rfbProtocolStartupData.desktopHost = this->hostname.c_str();
rfbProtocolStartupData.rfbPort = this->rfbPort;
rfbProtocolStartupData.requestedEncodings = this->requestedEncodings.c_str();
rfbProtocolStartupData.sharedDesktopFlag = this->sharedDesktopFlag;
vncWidget->startup(rfbProtocolStartupData);
}
}
VncDialog::~VncDialog()
{
close();
}
void VncDialog::close()
{
this->getManager()->popdownWidget(this);
resetConnection();
}
bool VncDialog::checkForUpdates()
{
bool updated = false;
if (vncWidget)
{
UpperLeftCornerPreserver upperLeftCornerPreserver(this);
updated = vncWidget->checkForUpdates();
}
return updated;
}
//----------------------------------------------------------------------
// VncManager::MessageManager methods
void VncDialog::internalErrorMessage(const char* where, const char* message)
{
if (Vrui::isMaster())
fprintf(stderr, "** VncDialog: internal error at %s: %s\n", where, message);
}
void VncDialog::errorMessage(const char* where, const char* message)
{
// When changing the implementation of this method, think
// about possible injection attacks from a malicious server.
// If any are possible, reimplement errorMessageFromServer()
// below to prevent exploitation.
messageLabel->setString("Connection error");
fprintf(stderr, "!!! VncDialog::errorMessage: %s: %s\n", where, message);//!!!
}
void VncDialog::errorMessageFromServer(const char* where, const char* message)
{
// Note: a malicious message from the server won't hurt us here, i.e., there
// are no known injection attacks for the way we're handling this message....
this->errorMessage(where, message);
}
void VncDialog::infoServerInitStarted()
{
messageLabel->setString(initViaConnect ? "Connecting..." : "Waiting for connection...");
}
void VncDialog::infoProtocolVersion(int serverMajorVersion, int serverMinorVersion, int clientMajorVersion, int clientMinorVersion)
{
// do nothing...
}
void VncDialog::infoAuthenticationResult(bool succeeded, rfbCARD32 authScheme, rfbCARD32 authResult)
{
// do nothing...
}
void VncDialog::infoServerInitCompleted(bool succeeded)
{
serverInitFailed = !succeeded;
messageLabel->setString(succeeded ? "Connected" : "Connection failed");
}
void VncDialog::infoDesktopSizeReceived(rfbCARD16 newWidth, rfbCARD16 newHeight)
{
// do nothing...
}
void VncDialog::infoCloseStarted()
{
// do nothing...
}
void VncDialog::infoCloseCompleted()
{
// do nothing...
}
//----------------------------------------------------------------------
// VncManager::PasswordRetrievalThunk method
void VncDialog::getPassword(VncManager::PasswordRetrievalCompletionThunk& passwordRetrievalCompletionThunk)
{
if (initializedWithPassword)
{
// Must be performed last before returning:
passwordRetrievalCompletionThunk.postPassword(password.c_str());
}
else
{
clearPasswordDialog();
passwordCompletionCallback = new PasswordDialogCompletionCallback(this, passwordRetrievalCompletionThunk);
std::string passwordKeyboardDialogTitle = "Enter VNC Password For Host: ";
passwordKeyboardDialogTitle += hostname;
passwordKeyboardDialog = new KeyboardDialog("PasswordDialog", Vrui::getWidgetManager(), passwordKeyboardDialogTitle.c_str());
Vrui::popupPrimaryWidget(passwordKeyboardDialog, Vrui::getNavigationTransformation().transform(Vrui::getDisplayCenter()));
passwordKeyboardDialog->activate(*passwordCompletionCallback, true); // passwordCompletionCallback will perform passwordRetrievalCompletionThunk.postPassword()
}
}
//----------------------------------------------------------------------
void VncDialog::closeButtonCallback(GLMotif::Button::CallbackData* cbData)
{
close();
}
template<class PopupWindowClass>
void VncDialog::closePopupWindow(PopupWindowClass*& var)
{
if (var)
{
var->getManager()->popdownWidget(var);
var->getManager()->deleteWidget(var);
var = 0;
}
}
void VncDialog::clearPasswordDialog()
{
closePopupWindow(passwordKeyboardDialog);
if (passwordCompletionCallback)
{
delete passwordCompletionCallback;
passwordCompletionCallback = 0;
}
}
void VncDialog::resetConnection()
{
if (vncWidget)
{
vncWidget->shutdown();
vncWidget = 0;
// Note: vncWidget is owned by (a descendent of) this
}
clearPasswordDialog();
}
} // end of namespace Voltaic