llwindow.cpp

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#include "linden_common.h"
#include "llwindowheadless.h"

#if LL_MESA_HEADLESS
#include "llwindowmesaheadless.h"
#elif LL_SDL
#include "llwindowsdl.h"
#elif LL_WINDOWS
#include "llwindowwin32.h"
#elif LL_DARWIN
#include "llwindowmacosx.h"
#endif

#include "llerror.h"
#include "llkeyboard.h"
#include "linked_lists.h"

//static instance for default callbacks
LLWindowCallbacks       LLWindow::sDefaultCallbacks;

//
// LLWindowCallbacks
//

LLSplashScreen *gSplashScreenp = NULL;
BOOL gDebugClicks = FALSE;
BOOL gDebugWindowProc = FALSE;

const S32 gURLProtocolWhitelistCount = 3;
const char* gURLProtocolWhitelist[] = { "file", "http", "https" };

// CP: added a handler list - this is what's used to open the protocol and is based on registry entry
//         only meaningful difference currently is that file: protocols are opened using http:
//         since no protocol handler exists in registry for file:
//     Important - these lists should match - protocol to handler
const char* gURLProtocolWhitelistHandler[] = { "http", "http", "https" };       

BOOL LLWindowCallbacks::handleTranslatedKeyDown(const KEY key, const MASK mask, BOOL repeated)
{
        return FALSE;
}


BOOL LLWindowCallbacks::handleTranslatedKeyUp(const KEY key, const MASK mask)
{
        return FALSE;
}

void LLWindowCallbacks::handleScanKey(KEY key, BOOL key_down, BOOL key_up, BOOL key_level)
{
}

BOOL LLWindowCallbacks::handleUnicodeChar(llwchar uni_char, MASK mask)
{
        return FALSE;
}


BOOL LLWindowCallbacks::handleMouseDown(LLWindow *window, const LLCoordGL pos, MASK mask)
{
        return FALSE;
}

BOOL LLWindowCallbacks::handleMouseUp(LLWindow *window, const LLCoordGL pos, MASK mask)
{
        return FALSE;
}

void LLWindowCallbacks::handleMouseLeave(LLWindow *window)
{
        return;
}

BOOL LLWindowCallbacks::handleCloseRequest(LLWindow *window)
{
        //allow the window to close
        return TRUE;
}

void LLWindowCallbacks::handleQuit(LLWindow *window)
{
        if(LLWindowManager::destroyWindow(window) == FALSE)     
        {
                llerrs << "LLWindowCallbacks::handleQuit() : Couldn't destroy window" << llendl;
        }
}

BOOL LLWindowCallbacks::handleRightMouseDown(LLWindow *window, const LLCoordGL pos, MASK mask)
{
        return FALSE;
}

BOOL LLWindowCallbacks::handleRightMouseUp(LLWindow *window, const LLCoordGL pos, MASK mask)
{
        return FALSE;
}

BOOL LLWindowCallbacks::handleMiddleMouseDown(LLWindow *window, const LLCoordGL pos, MASK mask)
{
        return FALSE;
}

BOOL LLWindowCallbacks::handleMiddleMouseUp(LLWindow *window, const LLCoordGL pos, MASK mask)
{
        return FALSE;
}

BOOL LLWindowCallbacks::handleActivate(LLWindow *window, BOOL activated)
{
        return FALSE;
}

BOOL LLWindowCallbacks::handleActivateApp(LLWindow *window, BOOL activating)
{
        return FALSE;
}

void LLWindowCallbacks::handleMouseMove(LLWindow *window, const LLCoordGL pos, MASK mask)
{
}

void LLWindowCallbacks::handleScrollWheel(LLWindow *window, S32 clicks)
{
}

void LLWindowCallbacks::handleResize(LLWindow *window, const S32 width, const S32 height)
{
}

void LLWindowCallbacks::handleFocus(LLWindow *window)
{
}

void LLWindowCallbacks::handleFocusLost(LLWindow *window)
{
}

void LLWindowCallbacks::handleMenuSelect(LLWindow *window, const S32 menu_item)
{
}

BOOL LLWindowCallbacks::handlePaint(LLWindow *window, const S32 x, const S32 y, 
                                                                        const S32 width, const S32 height)
{
        return FALSE;
}

BOOL LLWindowCallbacks::handleDoubleClick(LLWindow *window, const LLCoordGL pos, MASK mask)
{
        return FALSE;
}

void LLWindowCallbacks::handleWindowBlock(LLWindow *window)
{
}

void LLWindowCallbacks::handleWindowUnblock(LLWindow *window)
{
}

void LLWindowCallbacks::handleDataCopy(LLWindow *window, S32 data_type, void *data)
{
}

BOOL LLWindowCallbacks::handleTimerEvent(LLWindow *window)
{
        return FALSE;
}

BOOL LLWindowCallbacks::handleDeviceChange(LLWindow *window)
{
        return FALSE;
}

S32 OSMessageBox(const char* text, const char* caption, U32 type)
{
        // Properly hide the splash screen when displaying the message box
        BOOL was_visible = FALSE;
        if (LLSplashScreen::isVisible())
        {
                was_visible = TRUE;
                LLSplashScreen::hide();
        }

        S32 result = 0;
#if LL_MESA_HEADLESS // !!! *FIX: (???)
        llwarns << "OSMessageBox: " << text << llendl;
        return OSBTN_OK;
#elif LL_WINDOWS
        result = OSMessageBoxWin32(text, caption, type);
#elif LL_DARWIN
        result = OSMessageBoxMacOSX(text, caption, type);
#elif LL_SDL
        result = OSMessageBoxSDL(text, caption, type);
#else
#error("OSMessageBox not implemented for this platform!")
#endif

        if (was_visible)
        {
                LLSplashScreen::show();
        }

        return result;
}


//
// LLWindow
//

LLWindow::LLWindow(BOOL fullscreen, U32 flags)
        : mCallbacks(&sDefaultCallbacks),
          mPostQuit(TRUE),
          mFullscreen(fullscreen),
          mFullscreenWidth(0),
          mFullscreenHeight(0),
          mFullscreenBits(0),
          mFullscreenRefresh(0),
          mSupportedResolutions(NULL),
          mNumSupportedResolutions(0),
          mCurrentCursor(UI_CURSOR_ARROW),
          mCursorHidden(FALSE),
          mBusyCount(0),
          mIsMouseClipping(FALSE),
          mSwapMethod(SWAP_METHOD_UNDEFINED),
          mHideCursorPermanent(FALSE),
          mFlags(flags),
          mHighSurrogate(0)
{
}
        
// virtual
void LLWindow::incBusyCount()
{
        ++mBusyCount;
}

// virtual
void LLWindow::decBusyCount()
{
        if (mBusyCount > 0)
        {
                --mBusyCount;
        }
}

void LLWindow::setCallbacks(LLWindowCallbacks *callbacks)
{
        mCallbacks = callbacks;
        if (gKeyboard)
        {
                gKeyboard->setCallbacks(callbacks);
        }
}

// static
std::string LLWindow::getFontListSans()
{
#if LL_WINDOWS
        return LLWindowWin32::getFontListSans();
#elif LL_DARWIN
        return LLWindowMacOSX::getFontListSans();
#elif LL_SDL
        return LLWindowSDL::getFontListSans();
#else
        return "";
#endif
}

#define UTF16_IS_HIGH_SURROGATE(U) ((U16)((U) - 0xD800) < 0x0400)
#define UTF16_IS_LOW_SURROGATE(U)  ((U16)((U) - 0xDC00) < 0x0400)
#define UTF16_SURROGATE_PAIR_TO_UTF32(H,L) (((H) << 10) + (L) - (0xD800 << 10) - 0xDC00 + 0x00010000)

void LLWindow::handleUnicodeUTF16(U16 utf16, MASK mask)
{
        // Note that we could discard unpaired surrogates, but I'm
        // following the Unicode Consortium's recommendation here;
        // that is, to preserve those unpaired surrogates in UTF-32
        // values.  _To_preserve_ means to pass to the callback in our
        // context.

        if (mHighSurrogate == 0)
        {
                if (UTF16_IS_HIGH_SURROGATE(utf16))
                {
                        mHighSurrogate = utf16;
                }
                else
                {
                        mCallbacks->handleUnicodeChar(utf16, mask);
                }
        }
        else
        {
                if (UTF16_IS_LOW_SURROGATE(utf16))
                {
                        /* A legal surrogate pair.  */                  
                        mCallbacks->handleUnicodeChar(UTF16_SURROGATE_PAIR_TO_UTF32(mHighSurrogate, utf16), mask);
                        mHighSurrogate = 0;
                }
                else if (UTF16_IS_HIGH_SURROGATE(utf16))
                {
                        /* Two consecutive high surrogates.  */
                        mCallbacks->handleUnicodeChar(mHighSurrogate, mask);
                        mHighSurrogate = utf16;
                }
                else
                {
                        /* A non-low-surrogate preceeded by a high surrogate. */
                        mCallbacks->handleUnicodeChar(mHighSurrogate, mask);
                        mHighSurrogate = 0;
                        mCallbacks->handleUnicodeChar(utf16, mask);
                }
        }
}

//
// LLSplashScreen
//

// static
bool LLSplashScreen::isVisible()
{
        return gSplashScreenp ? true: false;
}

// static
LLSplashScreen *LLSplashScreen::create()
{
#if LL_MESA_HEADLESS || LL_SDL  // !!! *FIX: (???)
        return 0;
#elif LL_WINDOWS
        return new LLSplashScreenWin32;
#elif LL_DARWIN
        return new LLSplashScreenMacOSX;
#else
#error("LLSplashScreen not implemented on this platform!")
#endif
}


//static
void LLSplashScreen::show()
{
        if (!gSplashScreenp)
        {
#if LL_WINDOWS && !LL_MESA_HEADLESS
                gSplashScreenp = new LLSplashScreenWin32;
#elif LL_DARWIN
                gSplashScreenp = new LLSplashScreenMacOSX;
#endif
                if (gSplashScreenp)
                {
                        gSplashScreenp->showImpl();
                }
        }
}

//static
void LLSplashScreen::update(const char* str)
{
        LLSplashScreen::show();
        if (gSplashScreenp)
        {
                gSplashScreenp->updateImpl(str);
        }
}

//static
void LLSplashScreen::hide()
{
        if (gSplashScreenp)
        {
                gSplashScreenp->hideImpl();
        }
        delete gSplashScreenp;
        gSplashScreenp = NULL;
}

//
// LLWindowManager
//

// TODO: replace with std::set
static std::set<LLWindow*> sWindowList;

LLWindow* LLWindowManager::createWindow(
        char *title,
        char *name,
        LLCoordScreen upper_left,
        LLCoordScreen size,
        U32 flags,
        BOOL fullscreen, 
        BOOL clearBg,
        BOOL disable_vsync,
        BOOL use_gl,
        BOOL ignore_pixel_depth)
{
        return createWindow(
                title, name, upper_left.mX, upper_left.mY, size.mX, size.mY, flags, 
                fullscreen, clearBg, disable_vsync, use_gl, ignore_pixel_depth);
}

LLWindow* LLWindowManager::createWindow(
        char *title, char *name, S32 x, S32 y, S32 width, S32 height, U32 flags,
        BOOL fullscreen, 
        BOOL clearBg,
        BOOL disable_vsync,
        BOOL use_gl,
        BOOL ignore_pixel_depth,
        U32 fsaa_samples)
{
        LLWindow* new_window;

        if (use_gl)
        {
#if LL_MESA_HEADLESS
                new_window = new LLWindowMesaHeadless(
                        title, name, x, y, width, height, flags, 
                        fullscreen, clearBg, disable_vsync, use_gl, ignore_pixel_depth);
#elif LL_SDL
                new_window = new LLWindowSDL(
                        title, x, y, width, height, flags, 
                        fullscreen, clearBg, disable_vsync, use_gl, ignore_pixel_depth, fsaa_samples);
#elif LL_WINDOWS
                new_window = new LLWindowWin32(
                        title, name, x, y, width, height, flags, 
                        fullscreen, clearBg, disable_vsync, use_gl, ignore_pixel_depth, fsaa_samples);
#elif LL_DARWIN
                new_window = new LLWindowMacOSX(
                        title, name, x, y, width, height, flags, 
                        fullscreen, clearBg, disable_vsync, use_gl, ignore_pixel_depth, fsaa_samples);
#endif
        }
        else
        {
                new_window = new LLWindowHeadless(
                        title, name, x, y, width, height, flags, 
                        fullscreen, clearBg, disable_vsync, use_gl, ignore_pixel_depth);
        }

        if (FALSE == new_window->isValid())
        {
                delete new_window;
                llwarns << "LLWindowManager::create() : Error creating window." << llendl;
                return NULL;
        }
        sWindowList.insert(new_window);
        return new_window;
}

BOOL LLWindowManager::destroyWindow(LLWindow* window)
{
        if (sWindowList.find(window) == sWindowList.end())
        {
                llerrs << "LLWindowManager::destroyWindow() : Window pointer not valid, this window doesn't exist!" 
                        << llendl;
                return FALSE;
        }

        window->close();

        sWindowList.erase(window);

        delete window;

        return TRUE;
}

BOOL LLWindowManager::isWindowValid(LLWindow *window)
{
        return sWindowList.find(window) != sWindowList.end();
}

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