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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* 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/.
*/
#include <comphelper/random.hxx>
#include <o3tl/string_view.hxx>
#include <rtl/string.hxx>
#include <sal/log.hxx>
#include <vcl/keycodes.hxx>
#include <vcl/svapp.hxx>
#include <vcl/wrkwin.hxx>
#include <vcl/menu.hxx>
#include <debugevent.hxx>
#include <window.h>
#include <salwtype.hxx>
DebugEventInjector::DebugEventInjector( sal_uInt32 nMaxEvents) :
Timer("debug event injector")
, mnEventsLeft( nMaxEvents )
{
SetTimeout( 1000 /* ms */ );
Start();
}
static double getRandom()
{
return comphelper::rng::uniform_real_distribution();
}
vcl::Window *DebugEventInjector::ChooseWindow()
{
vcl::Window *pParent;
if (getRandom() < 0.80)
if (vcl::Window * pWindow = Application::GetFocusWindow())
return pWindow;
if (getRandom() > 0.50 ||
!(pParent = Application::GetActiveTopWindow()))
{
// select a top window at random
tools::Long nIdx = Application::GetTopWindowCount() * getRandom();
pParent = Application::GetTopWindow( nIdx );
}
assert (pParent != nullptr);
std::vector< vcl::Window *> aChildren;
pParent->CollectChildren( aChildren );
return aChildren[ aChildren.size() * getRandom() ];
}
static void CollectMenuItemIds( Menu *pMenu, std::vector< SalMenuEvent > &rIds )
{
sal_uInt16 nItems = pMenu->GetItemCount();
for (sal_uInt16 i = 0; i < nItems; i++)
{
if (pMenu->GetItemType( i ) != MenuItemType::SEPARATOR || getRandom() < 0.01)
rIds.emplace_back( pMenu->GetItemId( i ), pMenu );
PopupMenu *pPopup = pMenu->GetPopupMenu( i );
if (pPopup)
CollectMenuItemIds( pPopup, rIds );
}
}
void DebugEventInjector::InjectMenuEvent()
{
vcl::Window *pFocus = Application::GetFocusWindow();
if (!pFocus)
return;
SystemWindow *pSysWin = pFocus->GetSystemWindow();
if (!pSysWin)
return;
MenuBar *pMenuBar = pSysWin->GetMenuBar();
if (!pMenuBar)
return;
SalEvent nEvents[] = {
SalEvent::MenuCommand,
SalEvent::MenuCommand,
SalEvent::MenuActivate,
SalEvent::MenuDeactivate,
SalEvent::MenuHighlight,
SalEvent::MenuCommand,
SalEvent::MenuCommand,
SalEvent::MenuCommand,
SalEvent::MenuButtonCommand,
SalEvent::MenuButtonCommand,
};
std::vector< SalMenuEvent > aIds;
CollectMenuItemIds( pMenuBar, aIds );
SalEvent nEvent = nEvents[ static_cast<int>(getRandom() * SAL_N_ELEMENTS( nEvents )) ];
SalMenuEvent aEvent = aIds[ getRandom() * aIds.size() ];
bool bHandled = ImplWindowFrameProc( pSysWin, nEvent, &aEvent);
SAL_INFO( "vcl.debugevent",
"Injected menu event " << aEvent.mpMenu
<< " (" << aEvent.mnId << ") '"
<< static_cast<Menu *>(aEvent.mpMenu)->GetItemText( aEvent.mnId ) << "' -> "
<< bHandled );
}
static void InitKeyEvent( SalKeyEvent &rKeyEvent )
{
if (getRandom() < 0.01)
rKeyEvent.mnRepeat = getRandom() * 20;
else
rKeyEvent.mnRepeat = 0;
}
void DebugEventInjector::InjectTextEvent()
{
SalKeyEvent aKeyEvent;
vcl::Window *pWindow = ChooseWindow();
InitKeyEvent( aKeyEvent );
if (getRandom() < 0.10) // Occasionally a truly random event
{
aKeyEvent.mnCode = getRandom() * KEY_CODE_MASK;
aKeyEvent.mnCharCode = getRandom() * 0xffff;
}
else
{
static struct {
sal_uInt16 nCodeStart, nCodeEnd;
char aCharStart;
} const nTextCodes[] = {
{ KEY_0, KEY_9, '0' },
{ KEY_A, KEY_Z, 'a' }
};
size_t i = getRandom() * SAL_N_ELEMENTS( nTextCodes );
int offset = int( getRandom() * ( nTextCodes[i].nCodeEnd - nTextCodes[i].nCodeStart ) );
aKeyEvent.mnCode = nTextCodes[i].nCodeStart + offset;
aKeyEvent.mnCharCode = nTextCodes[i].aCharStart + offset;
// fprintf( stderr, "Char '%c' offset %d into record %d base '%c'\n",
// aKeyEvent.mnCharCode, offset, (int)i, nTextCodes[i].aCharStart );
}
if( getRandom() < 0.05 ) // modifier
aKeyEvent.mnCode |= static_cast<sal_uInt16>( getRandom() * KEY_MODIFIERS_MASK ) & KEY_MODIFIERS_MASK;
bool bHandled = ImplWindowFrameProc( pWindow, SalEvent::KeyInput, &aKeyEvent);
SAL_INFO( "vcl.debugevent",
"Injected key 0x" << std::hex << static_cast<int>(aKeyEvent.mnCode) << std::dec
<< " -> " << bHandled
<< " win " << pWindow );
ImplWindowFrameProc( pWindow, SalEvent::KeyUp, &aKeyEvent );
}
/*
* The more heuristics we have to inform this the better,
* key-bindings, menu entries, allowable entry types etc.
*/
void DebugEventInjector::InjectEvent()
{
// fprintf( stderr, "%6d - ", (int)mnEventsLeft );
double nRand = getRandom();
if (nRand < 0.30)
{
int nEvents = getRandom() * 10;
for (int i = 0; i < nEvents; i++)
InjectTextEvent();
}
else if (nRand < 0.60)
InjectKeyNavEdit();
else if (nRand < 0.95)
InjectMenuEvent();
}
void DebugEventInjector::InjectKeyNavEdit()
{
vcl::Window *pWindow = ChooseWindow();
static struct {
double mnProb;
sal_uInt16 mnKey;
} const nWeights[] = {
// edit / escape etc. - 50%
{ 0.20, KEY_SPACE },
{ 0.10, KEY_TAB },
{ 0.07, KEY_RETURN },
{ 0.05, KEY_DELETE },
{ 0.05, KEY_BACKSPACE },
// navigate - 45%
{ 0.15, KEY_LEFT },
{ 0.10, KEY_RIGHT },
{ 0.05, KEY_UP },
{ 0.05, KEY_DOWN },
{ 0.05, KEY_PAGEUP },
{ 0.05, KEY_PAGEDOWN },
// other
{ 0.01, KEY_INSERT },
{ 0.02, KEY_HOME },
{ 0.02, KEY_END },
};
double d = 0.0, nRand = getRandom();
sal_uInt16 nKey = KEY_SPACE;
for (auto & rWeight : nWeights)
{
d += rWeight.mnProb;
assert (d < 1.01);
if ( nRand < d )
{
nKey = rWeight.mnKey;
break;
}
}
SalKeyEvent aKeyEvent;
InitKeyEvent( aKeyEvent );
aKeyEvent.mnCode = nKey;
if (getRandom() < 0.15) // modifier
aKeyEvent.mnCode |= static_cast<sal_uInt16>(getRandom() * KEY_MODIFIERS_MASK) & KEY_MODIFIERS_MASK;
aKeyEvent.mnCharCode = 0x0; // hopefully unused.
bool bHandled = ImplWindowFrameProc( pWindow, SalEvent::KeyInput, &aKeyEvent );
SAL_INFO( "vcl.debugevent",
"Injected edit / move key 0x" << std::hex << static_cast<int>(aKeyEvent.mnCode) << std::dec
<< " -> " << bHandled
<< " win " << pWindow );
ImplWindowFrameProc( pWindow, SalEvent::KeyUp, &aKeyEvent );
}
void DebugEventInjector::Invoke()
{
InjectEvent();
mnEventsLeft--;
if (mnEventsLeft > 0)
{
SetTimeout( 1 );
Start();
}
else
Application::Quit();
}
DebugEventInjector *DebugEventInjector::getCreate()
{
sal_uInt32 nEvents;
const char *pEvents = getenv("VCL_EVENT_INJECTION");
if (!pEvents)
return nullptr;
nEvents = o3tl::toUInt32( pEvents );
if (nEvents > 0)
return new DebugEventInjector( nEvents );
else
return nullptr;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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