[meld] filediff, ui.statusbar: Make go-to-line happen as you type

[Kai Willadsen <kaiw src gnome org>]

commit d525ce65207afd4abe2a81be4c6e39fa9f5dfa8c
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sun Nov 26 07:52:50 2017 +1000

    filediff, ui.statusbar: Make go-to-line happen as you type

 meld/filediff.py     |    7 ++++---
 meld/ui/statusbar.py |   18 +++++++++++++-----
 2 files changed, 17 insertions(+), 8 deletions(-)
---
diff --git a/meld/filediff.py b/meld/filediff.py
index ad55fd9..e836d0e 100644
--- a/meld/filediff.py
+++ b/meld/filediff.py
@@ -230,7 +230,7 @@ class FileDiff(melddoc.MeldDoc, gnomeglade.Component):
                 self.set_file(pane, self.textbuffer[pane].data.gfile, encoding)
 
             def go_to_line(widget, line, pane):
-                self.move_cursor(pane, line)
+                self.move_cursor(pane, line, focus=False)
 
             pane = self.statusbar.index(statusbar)
             statusbar.connect('encoding-changed', reload_with_encoding, pane)
@@ -706,9 +706,10 @@ class FileDiff(melddoc.MeldDoc, gnomeglade.Component):
 
         return new_line
 
-    def move_cursor(self, pane, line):
+    def move_cursor(self, pane, line, focus=True):
         buf, view = self.textbuffer[pane], self.textview[pane]
-        view.grab_focus()
+        if focus:
+            view.grab_focus()
         buf.place_cursor(buf.get_iter_at_line(line))
         view.scroll_to_mark(buf.get_insert(), 0.1, True, 0.5, 0.5)
 
diff --git a/meld/ui/statusbar.py b/meld/ui/statusbar.py
index b9d60ca..12270bc 100644
--- a/meld/ui/statusbar.py
+++ b/meld/ui/statusbar.py
@@ -159,6 +159,13 @@ class MeldStatusBar(Gtk.Statusbar):
         # Note that we're receiving one-based line numbers from the
         # user and storing and emitting zero-base line numbers.
 
+        def go_to_line_text(text):
+            try:
+                line = int(text)
+            except ValueError:
+                return
+            self.emit('go-to-line', max(0, line - 1))
+
         def line_entry_mapped(entry):
             line, offset = self.props.cursor_position
             entry.set_text(str(line + 1))
@@ -168,12 +175,12 @@ class MeldStatusBar(Gtk.Statusbar):
                 GObject.signal_stop_emission_by_name(entry, 'insert-text')
                 return
 
+        def line_entry_changed(entry):
+            go_to_line_text(entry.get_text())
+
         def line_entry_activated(entry):
-            try:
-                line = int(entry.get_text())
-            except ValueError:
-                return
-            self.emit('go-to-line', max(0, line - 1))
+            go_to_line_text(entry.get_text())
+            pop.popdown()
 
         entry = Gtk.Entry()
         entry.set_tooltip_text(_('Line you want to move the cursor to'))
@@ -183,6 +190,7 @@ class MeldStatusBar(Gtk.Statusbar):
         entry.set_input_purpose(Gtk.InputPurpose.DIGITS)
         entry.connect('map', line_entry_mapped)
         entry.connect('insert-text', line_entry_insert_text)
+        entry.connect('changed', line_entry_changed)
         entry.connect('activate', line_entry_activated)
 
         selector = Gtk.Grid()