Added right-click API to ListModel; allow copy all from Descendants

Gramplet.

gramps/gui/listmodel.py

@@ -75,10 +75,12 @@ class ListModel(object):
     event_func:     Function called when the user double-clicks on a row.
     mode:           Selection mode for TreeView.  See Gtk documentation.
     list_mode:      "list" or "tree"
+    right_click:    Function called when the user right-clicks on a row.
     """
 
     def __init__(self, tree, dlist, select_func=None, event_func=None, 
-                 mode=Gtk.SelectionMode.SINGLE, list_mode="list"):
+                 mode=Gtk.SelectionMode.SINGLE, list_mode="list", 
+                 right_click=None):
 
         self.tree = tree
         self.tree.set_fixed_height_mode(True)
@@ -86,6 +88,8 @@ class ListModel(object):
         self.data_index = 0
         self.sel_iter = None
         self.list_mode = list_mode # "list", or "tree"
+        self.double_click = None
+        self.right_click = None
 
         for info in dlist:
             col_type = TEXT
@@ -124,8 +128,11 @@ class ListModel(object):
         
         if select_func:
             self.selection.connect('changed', select_func)
-        if event_func:
+        if event_func or right_click:
-            self.double_click = event_func
+            if event_func:
+                self.double_click = event_func
+            if right_click:
+                self.right_click = right_click
             self.tree.connect('button-press-event', self.__button_press)
 
     def __build_image_column(self, cnum, name, renderer, column):
@@ -474,9 +481,15 @@ class ListModel(object):
         """
         Called when a button press is executed
         """
+        from gramps.gui.utils import is_right_click
         if event.type == Gdk.EventType._2BUTTON_PRESS and event.button == 1:
-            self.double_click(obj)
+            if self.double_click:
-            return True
+                self.double_click(obj)
+                return True
+        elif is_right_click(event):
+            if self.right_click:
+                self.right_click(obj, event)
+                return True
         return False
 
     def find(self, info):

gramps/plugins/gramplet/descendant.py

@@ -34,6 +34,7 @@ _ = glocale.translation.gettext
 #
 #-------------------------------------------------------------------------
 from gi.repository import Gtk
+from gi.repository import Gdk
 
 #------------------------------------------------------------------------
 #
@@ -68,7 +69,8 @@ class Descendant(Gramplet):
                   ('', NOSORT, 1), # tooltip
                   ('', NOSORT, 100)] # handle
         self.model = ListModel(self.view, titles, list_mode="tree", 
-                               event_func=self.cb_double_click)
+                               event_func=self.cb_double_click,
+                               right_click=self.cb_right_click)
         return self.view
 
     def get_has_data(self, active_handle):
@@ -100,6 +102,47 @@ class Descendant(Gramplet):
         except WindowActiveError:
             pass
 
+    def cb_right_click(self, treeview, event):
+        """
+        Handle right click on treeview.
+        """
+        (model, iter_) = treeview.get_selection().get_selected()
+        sensitivity = 1 if iter_ else 0
+        menu = Gtk.Menu()
+        menu.set_title(_('Descendent Menu'))
+        entries = [
+            (_("Edit"), lambda obj: self.cb_double_click(treeview), sensitivity),
+            (None, None, 0),
+            (_("Copy all"), lambda obj: self.on_copy_all(treeview), 1),
+        ]
+        for stock_id, callback, sensitivity in entries:
+            item = Gtk.ImageMenuItem(stock_id)
+            if callback:
+                item.connect("activate", callback)
+            item.set_sensitive(sensitivity)
+            item.show()
+            menu.append(item)
+        self.menu = menu
+        self.menu.popup(None, None, None, None, event.button, event.time)
+
+    def on_copy_all(self, treeview):
+        def rows2text(store, treeiter, indent, level):
+            text = ""
+            while treeiter != None:
+                text += (indent + str(level) + ". " + store[treeiter][0] + " " + store[treeiter][1] + "\n")
+                if store.iter_has_child(treeiter):
+                    childiter = store.iter_children(treeiter)
+                    text += rows2text(store, childiter, indent + (" " * 4), level + 1)
+                treeiter = store.iter_next(treeiter)
+            return text
+        
+        model = treeview.get_model()
+        rootiter = model.get_iter_first()
+        text = rows2text(model, rootiter, "", 1)
+        clipboard = Gtk.Clipboard.get_for_display(Gdk.Display.get_default(), 
+                                                  Gdk.SELECTION_CLIPBOARD)
+        clipboard.set_text(text, -1)
+    
     def db_changed(self):
         self.update()