kdeui/kpanelmenu.cpp

   1 /*****************************************************************
   2
   3 Copyright (c) 1996-2000 the kicker authors. See file AUTHORS.
   4           (c) Michael Goffioul <kdeprint@swing.be>
   5
   6 Permission is hereby granted, free of charge, to any person obtaining a copy
   7 of this software and associated documentation files (the "Software"), to deal
   8 in the Software without restriction, including without limitation the rights
   9 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10 copies of the Software, and to permit persons to whom the Software is
  11 furnished to do so, subject to the following conditions:
  12
  13 The above copyright notice and this permission notice shall be included in
  14 all copies or substantial portions of the Software.
  15
  16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  19 AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  20 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22
  23 ******************************************************************/
  24
  25 #include <kglobal.h>
  26 #include <kconfig.h>
  27 #include <qtimer.h>
  28
  29 #include "kpanelmenu.h"
  30 #include "kpanelmenu.moc"
  31 //#include "kaccelmanager.h"
  32
  33
  34 class KPanelMenuPrivate
  35 {
  36 public:
  37     bool init;
  38     int clearDelay;
  39     QString startPath;
  40     QTimer t;
  41 };
  42
  43 KPanelMenu::KPanelMenu(const QString &startDir, QWidget *parent, const char *name)
  44   : KPopupMenu(parent, name)
  45 {
  46     init(startDir);
  47 }
  48
  49 KPanelMenu::KPanelMenu(QWidget *parent, const char *name)
  50   : KPopupMenu(parent, name)
  51 {
  52     init();
  53 }
  54
  55 void KPanelMenu::init(const QString& path)
  56 {
  57     d = new KPanelMenuPrivate;
  58
  59     setInitialized( false );
  60     d->startPath = path;
  61
  62     connect(this, SIGNAL(activated(int)), SLOT(slotExec(int)));
  63     connect(this, SIGNAL(aboutToShow()), SLOT(slotAboutToShow()));
  64
  65     // setup cache timer
  66     KConfig *config = KGlobal::config();
  67     config->setGroup("menus");
  68     d->clearDelay = config->readNumEntry("MenuCacheTime", 60000); // 1 minute
  69
  70     //KAcceleratorManager::manage(this);
  71     setKeyboardShortcutsEnabled(true);
  72 }
  73
  74 KPanelMenu::~KPanelMenu()
  75 {
  76     delete d;
  77 }
  78
  79 void KPanelMenu::slotAboutToShow()
  80 {
  81     // stop the cache timer
  82     if(d->clearDelay)
  83         d->t.stop();
  84
  85     // teared off ?
  86     if ( isTopLevel() )
  87         d->clearDelay = 0;
  88
  89     internalInitialize();
  90 }
  91
  92 void KPanelMenu::slotClear()
  93 {
  94     setInitialized( false );
  95     clear();
  96 }
  97
  98 void KPanelMenu::hideEvent(QHideEvent *ev)
  99 {
 100     // start the cache timer
 101     if(d->clearDelay) {
 102         disconnect(&(d->t), SIGNAL(timeout()), this, SLOT(slotClear()));
 103         connect(&(d->t), SIGNAL(timeout()), this, SLOT(slotClear()));
 104         d->t.start(d->clearDelay, true);
 105     }
 106     QPopupMenu::hideEvent(ev);
 107 }
 108
 109 void KPanelMenu::disableAutoClear()
 110 {
 111     d->clearDelay = 0;
 112 }
 113
 114 const QString& KPanelMenu::path() const
 115 {
 116     return d->startPath;
 117 }
 118
 119 void KPanelMenu::setPath(const QString& p)
 120 {
 121     d->startPath = p;
 122 }
 123
 124 bool KPanelMenu::initialized() const
 125 {
 126     return d->init;
 127 }
 128
 129 void KPanelMenu::setInitialized(bool on)
 130 {
 131     d->init = on;
 132 }
 133
 134 void KPanelMenu::reinitialize()
 135 {
 136     deinitialize();
 137     // Yes, reinitialize must call initialize(). Otherwise, menus
 138     // may not appear in the right place. Don't change this! If
 139     // you want delayed initialization, use deinitialize() instead.
 140     internalInitialize();
 141 }
 142
 143 void KPanelMenu::deinitialize()
 144 {
 145     slotClear();
 146 }
 147
 148 void KPanelMenu::internalInitialize()
 149 {
 150     if( initialized() )
 151         return;
 152     initialize();
 153     setInitialized( true );
 154 }
 155
 156 void KPanelMenu::virtual_hook( int id, void* data )
 157 { KPopupMenu::virtual_hook( id, data ); }
 158