Current File : //lib/calibre/calibre/gui2/actions/show_quickview.py
#!/usr/bin/env python3
__license__ = 'GPL v3'
__copyright__ = '2010, Kovid Goyal <kovid@kovidgoyal.net>'
__docformat__ = 'restructuredtext en'
from qt.core import QAction
from calibre.gui2.actions import InterfaceAction
from calibre.gui2.dialogs.quickview import Quickview
from calibre.gui2 import error_dialog, gprefs
from calibre.gui2.widgets import LayoutButton
class QuickviewButton(LayoutButton): # {{{
def __init__(self, gui, quickview_manager):
self.qv = quickview_manager
qaction = quickview_manager.qaction
LayoutButton.__init__(self, I('quickview.png'), _('Quickview'),
parent=gui, shortcut=qaction.shortcut().toString())
self.toggled.connect(self.update_state)
self.action_toggle = qaction
self.action_toggle.triggered.connect(self.toggle)
self.action_toggle.changed.connect(self.update_shortcut)
def update_state(self, checked):
if checked:
self.set_state_to_hide()
self.qv._show_quickview()
else:
self.set_state_to_show()
self.qv._hide_quickview()
def save_state(self):
gprefs['quickview visible'] = bool(self.isChecked())
def restore_state(self):
if gprefs.get('quickview visible', False):
self.toggle()
# }}}
current_qv_action_pi = None
def set_quickview_action_plugin(pi):
global current_qv_action_pi
current_qv_action_pi = pi
def get_quickview_action_plugin():
return current_qv_action_pi
class ShowQuickviewAction(InterfaceAction):
name = 'Quickview'
action_spec = (_('Quickview'), 'quickview.png', None, None)
dont_add_to = frozenset(('context-menu-device',))
action_type = 'current'
current_instance = None
def genesis(self):
self.gui.keyboard.register_shortcut('Toggle Quickview', _('Toggle Quickview'),
description=_('Open/close the Quickview panel/window'),
default_keys=('Q',), action=self.qaction,
group=self.action_spec[0])
self.focus_action = QAction(self.gui)
self.gui.addAction(self.focus_action)
self.gui.keyboard.register_shortcut('Focus To Quickview', _('Focus to Quickview'),
description=_('Move the focus to the Quickview panel/window'),
default_keys=('Shift+Q',), action=self.focus_action,
group=self.action_spec[0])
self.focus_action.triggered.connect(self.focus_quickview)
self.focus_bl_action = QAction(self.gui)
self.gui.addAction(self.focus_bl_action)
self.gui.keyboard.register_shortcut('Focus from Quickview',
_('Focus from Quickview to the book list'),
description=_('Move the focus from Quickview to the book list'),
default_keys=('Shift+Alt+Q',), action=self.focus_bl_action,
group=self.action_spec[0])
self.focus_bl_action.triggered.connect(self.focus_booklist)
self.focus_refresh_action = QAction(self.gui)
self.gui.addAction(self.focus_refresh_action)
self.gui.keyboard.register_shortcut('Refresh from Quickview',
_('Refresh Quickview'),
description=_('Refresh the information shown in the Quickview panel'),
action=self.focus_refresh_action,
group=self.action_spec[0])
self.focus_refresh_action.triggered.connect(self.refill_quickview)
self.search_action = QAction(self.gui)
self.gui.addAction(self.search_action)
self.gui.keyboard.register_shortcut('Search from Quickview', _('Search from Quickview'),
description=_('Search for the currently selected Quickview item'),
default_keys=('Shift+S',), action=self.search_action,
group=self.action_spec[0])
self.search_action.triggered.connect(self.search_quickview)
self.qv_button = QuickviewButton(self.gui, self)
def initialization_complete(self):
set_quickview_action_plugin(self)
def _hide_quickview(self):
'''
This is called only from the QV button toggle
'''
if self.current_instance:
if not self.current_instance.is_closed:
self.current_instance._reject()
self.current_instance = None
def _show_quickview(self, *args):
'''
This is called only from the QV button toggle
'''
if self.current_instance:
if not self.current_instance.is_closed:
self.current_instance._reject()
self.current_instance = None
if self.gui.current_view() is not self.gui.library_view:
error_dialog(self.gui, _('No quickview available'),
_('Quickview is not available for books '
'on the device.')).exec()
return
self.qv_button.set_state_to_hide()
index = self.gui.library_view.currentIndex()
self.current_instance = Quickview(self.gui, index, self.qaction.shortcut())
self.current_instance.reopen_after_dock_change.connect(self.open_quickview)
self.current_instance.show()
self.current_instance.quickview_closed.connect(self.qv_button.set_state_to_show)
def open_quickview(self):
'''
QV moved from/to dock. Close and reopen the pane/window.
Also called when QV is closed and the user asks to move the focus
'''
if self.current_instance and not self.current_instance.is_closed:
self.current_instance.reject()
self.current_instance = None
self.qaction.triggered.emit()
def refill_quickview(self):
'''
Called when the columns shown in the QV pane might have changed.
'''
if self.current_instance and not self.current_instance.is_closed:
self.current_instance.refill()
def refresh_quickview(self, idx):
'''
Called when the data shown in the QV pane might have changed.
'''
if self.current_instance and not self.current_instance.is_closed:
self.current_instance.refresh(idx)
def change_quickview_column(self, idx, show=True):
'''
Called from the column header context menu to change the QV query column
'''
if show or (self.current_instance and not self.current_instance.is_closed):
self.focus_quickview()
self.current_instance.slave(idx)
def library_changed(self, db):
'''
If QV is open, close it then reopen it so the columns are correct
'''
if self.current_instance and not self.current_instance.is_closed:
self.current_instance.reject()
self.qaction.triggered.emit()
def focus_quickview(self):
'''
Used to move the focus to the QV books table. Open QV if needed
'''
if not self.current_instance or self.current_instance.is_closed:
self.open_quickview()
else:
self.current_instance.set_focus()
def focus_booklist(self):
self.gui.activateWindow()
self.gui.library_view.setFocus()
def search_quickview(self):
if not self.current_instance or self.current_instance.is_closed:
return
self.current_instance.do_search()
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