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334 lines
8.9 KiB
334 lines
8.9 KiB
#include <string.h>
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#include <errno.h>
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#include <tqstring.h>
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#include <tqmap.h>
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#include <tqfile.h>
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#include <tqdir.h>
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#include <kdebug.h>
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#include <kstandarddirs.h>
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#include <kprocess.h>
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#include <X11/Xatom.h>
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#include <X11/Xos.h>
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#include <X11/Xlib.h>
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#include <X11/XKBlib.h>
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#include <X11/extensions/XKBfile.h>
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#include <X11/extensions/XKBgeom.h>
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#include <X11/extensions/XKM.h>
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#include "extension.h"
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TQMap<TQString, FILE*> XKBExtension::fileCache; //TODO: move to class?
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static TQString getLayoutKey(const TQString& layout, const TQString& variant)
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{
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return layout + "." + variant;
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}
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TQString XKBExtension::getPrecompiledLayoutFilename(const TQString& layoutKey)
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{
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TQString compiledLayoutFileName = m_tempDir + layoutKey + ".xkm";
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return compiledLayoutFileName;
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}
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XKBExtension::XKBExtension(Display *d)
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{
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if ( d == NULL )
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d = qt_xdisplay();
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m_dpy = d;
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// TQStringList dirs = KGlobal::dirs()->findDirs ( "tmp", "" );
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// m_tempDir = dirs.count() == 0 ? "/tmp/" : dirs[0];
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m_tempDir = locateLocal("tmp", "");
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}
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bool XKBExtension::init()
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{
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// Verify the Xlib has matching XKB extension.
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int major = XkbMajorVersion;
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int minor = XkbMinorVersion;
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if (!XkbLibraryVersion(&major, &minor))
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{
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kdError() << "Xlib XKB extension " << major << '.' << minor <<
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" != " << XkbMajorVersion << '.' << XkbMinorVersion << endl;
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return false;
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}
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// Verify the X server has matching XKB extension.
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int opcode_rtrn;
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int error_rtrn;
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int xkb_opcode;
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if (!XkbQueryExtension(m_dpy, &opcode_rtrn, &xkb_opcode, &error_rtrn,
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&major, &minor))
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{
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kdError() << "X server XKB extension " << major << '.' << minor <<
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" != " << XkbMajorVersion << '.' << XkbMinorVersion << endl;
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return false;
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}
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// Do it, or face horrible memory corrupting bugs
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::XkbInitAtoms(NULL);
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return true;
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}
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void XKBExtension::reset()
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{
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for(TQMap<TQString, FILE*>::ConstIterator it = fileCache.begin(); it != fileCache.end(); it++) {
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fclose(*it);
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// remove( TQFile::encodeName(getPrecompiledLayoutFileName(*it)) );
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}
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fileCache.clear();
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}
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XKBExtension::~XKBExtension()
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{
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/* if( m_compiledLayoutFileNames.isEmpty() == false )
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deletePrecompiledLayouts();*/
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}
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bool XKBExtension::setXkbOptions(const TQString& options, bool resetOld)
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{
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if (options.isEmpty())
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return true;
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TQString exe = KGlobal::dirs()->findExe("setxkbmap");
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if (exe.isEmpty())
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return false;
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KProcess p;
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p << exe;
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if( resetOld )
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p << "-option";
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p << "-option" << options;
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p.start(KProcess::Block);
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return p.normalExit() && (p.exitStatus() == 0);
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}
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bool XKBExtension::setLayout(const TQString& model,
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const TQString& layout, const TQString& variant,
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const TQString& includeGroup, bool useCompiledLayouts)
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{
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if( useCompiledLayouts == false ) {
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return setLayoutInternal( model, layout, variant, includeGroup );
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}
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const TQString layoutKey = getLayoutKey(layout, variant);
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bool res;
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if( fileCache.contains(layoutKey) ) {
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res = setCompiledLayout( layoutKey );
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kdDebug() << "setCompiledLayout " << layoutKey << ": " << res << endl;
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if( res )
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return res;
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}
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// else {
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res = setLayoutInternal( model, layout, variant, includeGroup );
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kdDebug() << "setRawLayout " << layoutKey << ": " << res << endl;
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if( res )
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compileCurrentLayout( layoutKey );
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// }
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return res;
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}
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// private
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bool XKBExtension::setLayoutInternal(const TQString& model,
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const TQString& layout, const TQString& variant,
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const TQString& includeGroup)
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{
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if ( layout.isEmpty() )
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return false;
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TQString exe = KGlobal::dirs()->findExe("setxkbmap");
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if( exe.isEmpty() ) {
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kdError() << "Can't find setxkbmap" << endl;
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return false;
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}
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TQString fullLayout = layout;
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TQString fullVariant = variant;
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if( includeGroup.isEmpty() == false ) {
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fullLayout = includeGroup;
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fullLayout += ",";
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fullLayout += layout;
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// fullVariant = baseVar;
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fullVariant = ",";
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fullVariant += variant;
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}
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KProcess p;
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p << exe;
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// p << "-rules" << rule;
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if( model.isEmpty() == false )
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p << "-model" << model;
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p << "-layout" << fullLayout;
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if( !fullVariant.isNull() && !fullVariant.isEmpty() )
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p << "-variant" << fullVariant;
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p.start(KProcess::Block);
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// reload system-wide hotkey-setup keycode -> keysym maps
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KProcess pXmodmap;
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pXmodmap << "xmodmap" << "/opt/trinity/share/apps/kxkb/system.xmodmap &> /dev/null";
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pXmodmap.start(KProcess::Block);
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KProcess pXmodmapHome;
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pXmodmapHome << "xmodmap" << TQDir::home().path() + "/.Xmodmap &> /dev/null";
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pXmodmapHome.start(KProcess::Block);
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return p.normalExit() && (p.exitStatus() == 0);
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}
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bool XKBExtension::setGroup(unsigned int group)
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{
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kdDebug() << "Setting group " << group << endl;
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return XkbLockGroup( m_dpy, XkbUseCoreKbd, group );
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}
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unsigned int XKBExtension::getGroup() const
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{
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XkbStateRec xkbState;
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XkbGetState( m_dpy, XkbUseCoreKbd, &xkbState );
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return xkbState.group;
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}
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/**
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* @brief Gets the current layout in its binary compiled form
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* and write it to the file specified by 'fileName'
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* @param[in] fileName file to store compiled layout to
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* @return true if no problem, false otherwise
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*/
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bool XKBExtension::compileCurrentLayout(const TQString &layoutKey)
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{
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XkbFileInfo result;
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memset(&result, 0, sizeof(result));
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result.type = XkmKeymapFile;
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XkbReadFromServer(m_dpy, XkbAllMapComponentsMask, XkbAllMapComponentsMask, &result);
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const TQString fileName = getPrecompiledLayoutFilename(layoutKey);
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kdDebug() << "compiling layout " << this << " cache size: " << fileCache.count() << endl;
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if( fileCache.contains(layoutKey) ) {
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kdDebug() << "trashing old compiled layout for " << fileName << endl;
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if( fileCache[ layoutKey ] != NULL )
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fclose( fileCache[ layoutKey ] ); // recompiling - trash the old file
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fileCache.remove(fileName);
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}
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FILE *output = fopen(TQFile::encodeName(fileName), "w");
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if ( output == NULL )
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{
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kdWarning() << "Could not open " << fileName << " to precompile: " << strerror(errno) << endl;
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XkbFreeKeyboard(result.xkb, XkbAllControlsMask, True);
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return false;
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}
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if( !XkbWriteXKMFile(output, &result) ) {
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kdWarning() << "Could not write compiled layout to " << fileName << endl;
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fclose(output);
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return false;
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}
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fclose(output); // TODO: can we change mode w/out reopening?
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FILE *input = fopen(TQFile::encodeName(fileName), "r");
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fileCache[ layoutKey ] = input;
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XkbFreeKeyboard(result.xkb, XkbAllControlsMask, True);
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return true;
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}
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/**
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* @brief takes layout from its compiled binary snapshot in file
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* and sets it as current
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* TODO: cache layout in memory rather than in file
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*/
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bool XKBExtension::setCompiledLayout(const TQString &layoutKey)
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{
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FILE *input = NULL;
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if( fileCache.contains(layoutKey) ) {
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input = fileCache[ layoutKey ];
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}
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if( input == NULL ) {
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kdWarning() << "setCompiledLayout trying to reopen xkb file" << endl; // should never happen
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const TQString fileName = getPrecompiledLayoutFilename(layoutKey);
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input = fopen(TQFile::encodeName(fileName), "r");
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// FILE *input = fopen(TQFile::encodeName(fileName), "r");
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if ( input == NULL ) {
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kdDebug() << "Unable to open " << fileName << ": " << strerror(errno) << endl;
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fileCache.remove(layoutKey);
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return false;
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}
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}
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else {
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rewind(input);
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}
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XkbFileInfo result;
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memset(&result, 0, sizeof(result));
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if ((result.xkb = XkbAllocKeyboard())==NULL) {
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kdWarning() << "Unable to allocate memory for keyboard description" << endl;
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// fclose(input);
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// fileCache.remove(layoutKey);
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return false;
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}
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unsigned retVal = XkmReadFile(input, 0, XkmKeymapLegal, &result);
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if (retVal == XkmKeymapLegal)
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{
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// this means reading the Xkm didn't manage to read any section
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kdWarning() << "Unable to load map from file" << endl;
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XkbFreeKeyboard(result.xkb, XkbAllControlsMask, True);
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fclose(input);
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fileCache.remove(layoutKey);
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return false;
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}
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// fclose(input); // don't close - goes in cache
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if (XkbChangeKbdDisplay(m_dpy, &result) == Success)
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{
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if (!XkbWriteToServer(&result))
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{
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kdWarning() << "Unable to write the keyboard layout to X display" << endl;
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XkbFreeKeyboard(result.xkb, XkbAllControlsMask, True);
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return false;
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}
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}
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else
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{
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kdWarning() << "Unable prepare the keyboard layout for X display" << endl;
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}
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XkbFreeKeyboard(result.xkb, XkbAllControlsMask, True);
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return true;
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}
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// Deletes the precompiled layouts stored in temporary files
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// void XKBExtension::deletePrecompiledLayouts()
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// {
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// TQMapConstIterator<LayoutUnit, TQString> it, end;
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// end = m_compiledLayoutFileNames.end();
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// for (it = m_compiledLayoutFileNames.begin(); it != end; ++it)
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// {
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// unlink(TQFile::encodeName(it.data()));
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// }
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// m_compiledLayoutFileNames.clear();
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// }
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