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Viewing changes to xlgui/widgets/playlist.py

  • Committer: Mathias Brodala
  • Date: 2012-08-22 21:22:13 UTC
  • Revision ID: info@noctus.net-20120822212213-5on0c31n83krjtvu
https://launchpad.net/bugs/1039353
* Keep selection of multiple rows upon button press in playlist views (required for DnD)

(Fixes: bug #1039353)

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Lines of Context:
xlgui/widgets/playlist.py
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            Also sets the internal state for button pressed
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            (Taken from thunar_details_view_button_press_event() of thunar-details-view.c)
 
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            Taken from the following sources:
 
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            * thunar_details_view_button_press_event() of thunar-details-view.c
 
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            * MultiDragTreeView.__button_press/__button.release of quodlibet/qltk/views.py
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        """
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        self.button_pressed = True
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        selection = self.get_selection()
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        if e.state & gtk.accelerator_get_default_mod_mask() == 0 and not path:
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            selection.unselect_all()
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        # Open the context menu on right clicks
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        if e.type == gtk.gdk.BUTTON_PRESS and e.button == 3:
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            if path:
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                # Select the path on which the user clicked if not selected yet
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                if not selection.path_is_selected(path):
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                    # We don't unselect all other items if Control is active
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                    if e.state & gtk.gdk.CONTROL_MASK == 0:
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                        selection.unselect_all()
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                    selection.select_path(path)
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                self.menu.popup(None, None, None, e.button, e.time)
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            return True
 
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        if path and e.type == gtk.gdk.BUTTON_PRESS:
 
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            # Prevent unselection of all except the clicked item on left
 
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            # clicks, required to preserve the selection for DnD
 
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            if e.button == 1 and e.state & gtk.accelerator_get_default_mod_mask() == 0 and \
 
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               selection.path_is_selected(path):
 
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                selection.set_select_function(lambda *args: False)
 
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            # Open the context menu on right clicks
 
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            if e.button == 3:
 
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                if path:
 
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                    # Select the path on which the user clicked if not selected yet
 
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                    if not selection.path_is_selected(path):
 
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                        # We don't unselect all other items if Control is active
 
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                        if e.state & gtk.gdk.CONTROL_MASK == 0:
 
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                            selection.unselect_all()
 
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                        selection.select_path(path)
 
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                    self.menu.popup(None, None, None, e.button, e.time)
 
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                return True
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        return gtk.TreeView.do_button_press_event(self, e)
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            Unsets the internal state for button press
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        """
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        self.button_pressed = False
 
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        # Restore regular selection behavior in any case
 
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        self.get_selection().set_select_function(lambda *args: True)
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        return gtk.TreeView.do_button_release_event(self, e)
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