switcha.py

   1 #!/usr/bin/env python
   2 import os
   3 import sys
   4
   5 from qt import *
   6 from kdecore import *
   7 from kdeui import *
   8
   9
  10 class ListViewSearchLine(KListViewSearchLine):
  11         def updateSearch(self, text):
  12                 KListViewSearchLine.updateSearch(self, text)
  13
  14                 view = self.listView()
  15                 item = view.selectedItem()
  16                 if item and item.isVisible():
  17                         return
  18
  19                 iterator = QListViewItemIterator(view, QListViewItemIterator.Visible)
  20                 item = iterator.current()
  21                 if item:
  22                         view.setSelected(item, True)
  23
  24
  25 class Window(QDialog):
  26         def __init__(self):
  27                 QDialog.__init__(self)
  28                 self.setCaption("Switcha")
  29                 self.initModel()
  30                 self.initUi()
  31
  32
  33         def initModel(self):
  34                 kwinModule = KWinModule()
  35                 self._windowList = []
  36                 for wid in kwinModule.windows():
  37                         info = KWin.windowInfo(wid)
  38                         windowType = info.windowType(NET.AllTypesMask)
  39                         if windowType not in (NET.Desktop, NET.Dock, NET.Menu):
  40                                 self._windowList.append(info)
  41
  42
  43         def initUi(self):
  44                 # LineEdit
  45                 self._lineEdit = ListViewSearchLine(self)
  46                 QObject.connect(self._lineEdit, SIGNAL("returnPressed()"),
  47                         self.slotReturnPressed)
  48
  49                 self._lineEdit.installEventFilter(self)
  50
  51                 # View
  52                 self._view = KListView(self)
  53                 self._view.addColumn("")
  54                 self._view.header().hide()
  55                 for info in self._windowList:
  56                         item = QListViewItem(self._view, info.visibleName())
  57                         pix = KWin.icon(info.win(), 16, 16, True)
  58                         item.setPixmap(0, pix)
  59
  60                 if len(self._windowList) > 0:
  61                         self._view.setSelected(self._view.firstChild(), True)
  62
  63                 QObject.connect(self._view, SIGNAL("clicked(QListViewItem*)"),
  64                         self.switchToWindow)
  65
  66                 self._lineEdit.setListView(self._view)
  67
  68                 # Layout
  69                 layout = QVBoxLayout(self)
  70                 layout.setMargin(6)
  71                 layout.setSpacing(6)
  72                 layout.addWidget(self._lineEdit)
  73                 layout.addWidget(self._view)
  74
  75
  76         def slotCurrentChanged(self, item):
  77                 if not item:
  78                         self.selectFirstItem()
  79
  80
  81         def eventFilter(self, obj, event):
  82                 if event.type() != QEvent.KeyPress:
  83                         return False
  84
  85                 if event.key() in (Qt.Key_Up, Qt.Key_Down):
  86                         newEvent = QKeyEvent(event.type(), event.key(), event.ascii(), event.state(), event.text())
  87                         QApplication.postEvent(self._view, newEvent)
  88                         return True
  89
  90                 return False
  91
  92
  93         def switchToWindow(self, item):
  94                 itemName = item.text(0)
  95                 for info in self._windowList:
  96                         if info.visibleName() == itemName:
  97                                 KWin.forceActiveWindow(info.win())
  98                                 self.close()
  99                                 return
 100
 101
 102         def slotReturnPressed(self):
 103                 item = self._view.selectedItem()
 104                 if item and item.isVisible():
 105                         self.switchToWindow(item)
 106                 else:
 107                         cmd = unicode(self._lineEdit.text())
 108                         os.spawnlp(os.P_NOWAIT, 'sh', 'sh', '-c', cmd)
 109                         self.close()
 110
 111
 112 def main():
 113         # Keep app global otherwise there is a crash on exit
 114         global app
 115         description = "A fast window switcher and application launcher"
 116         version     = "1.0"
 117         aboutData   = KAboutData ("", "",\
 118                 version, description, KAboutData.License_GPL,\
 119                 "(C) 2007 Aurelien Gateau")
 120         KCmdLineArgs.init (sys.argv, aboutData)
 121
 122         app = KApplication()
 123         window = Window()
 124
 125         rect = QApplication.desktop().availableGeometry()
 126         window.move( \
 127                 rect.left() + (rect.width() - window.sizeHint().width()) / 2, \
 128                 rect.top() + (rect.height() - window.sizeHint().height()) / 2 \
 129                 )
 130         window.exec_loop()
 131
 132
 133 if __name__ == "__main__":
 134         main()