Proper clear icon in Mesh view and journal, #4311

lib/sugar/_sugarext.defs

@@ -119,7 +119,7 @@
   (return-type "none")
   (parameters
     '("SexyIconEntryPosition" "position")
-    '("GtkImage*" "icon")
+    '("GtkImage*" "icon" (null-ok))
   )
 )
 

lib/sugar/graphics/iconentry.py

@@ -19,15 +19,36 @@ import gtk
 
 from sugar import _sugarext
 
+from sugar.graphics.icon import _SVGLoader
+import sugar.profile
+
 ICON_ENTRY_PRIMARY = _sugarext.ICON_ENTRY_PRIMARY
 ICON_ENTRY_SECONDARY = _sugarext.ICON_ENTRY_SECONDARY
 
 class IconEntry(_sugarext.IconEntry):
+
+    def __init__(self):
+        _sugarext.IconEntry.__init__(self)
+
+        self._clear_icon = None
+        self._clear_shown = False
+
+        self.connect('key_press_event', self._keypress_event_cb)
+
     def set_icon_from_name(self, position, name):
         icon_theme = gtk.icon_theme_get_default()
         icon_info = icon_theme.lookup_icon(name,
                                            gtk.ICON_SIZE_SMALL_TOOLBAR,
                                            0)
+
+        if icon_info.get_filename().endswith('.svg'):
+            loader = _SVGLoader()
+            color = sugar.profile.get_color()
+            entities = {'fill_color': color.get_fill_color(),
+                        'stroke_color': color.get_stroke_color()}
+            handle = loader.load(icon_info.get_filename(), entities, None)
+            pixbuf = handle.get_pixbuf()
+        else:
             pixbuf = gtk.gdk.pixbuf_new_from_file(icon_info.get_filename())
         del icon_info
 
@@ -43,3 +64,44 @@ class IconEntry(_sugarext.IconEntry):
                              'stock, not %r.' % image.get_storage_type())
         _sugarext.IconEntry.set_icon(self, position, image)
 
+    def remove_icon(self, position):
+        _sugarext.IconEntry.set_icon(self, position, None)
+
+    def add_clear_button(self):
+        if self.props.text != "":
+            self.show_clear_button()
+        else:
+            self.hide_clear_button()
+
+        self.connect('icon-pressed', self._icon_pressed_cb)
+        self.connect('changed', self._changed_cb)
+
+    def show_clear_button(self):
+        if not self._clear_shown:
+            self.set_icon_from_name(ICON_ENTRY_SECONDARY,
+                'dialog-cancel')
+            self._clear_shown = True
+
+    def hide_clear_button(self):
+        if self._clear_shown:
+            self.remove_icon(ICON_ENTRY_SECONDARY)
+            self._clear_shown = False
+
+    def _keypress_event_cb(self, widget, event):
+        keyval = gtk.gdk.keyval_name(event.keyval)
+        if keyval == 'Escape':
+            self.props.text = ''
+            return True
+        return False
+
+    def _icon_pressed_cb(self, entru, icon_pos, button):
+        if icon_pos == ICON_ENTRY_SECONDARY:
+            self.set_text('')
+            self.hide_clear_button()
+
+    def _changed_cb(self, icon_entry):
+        if not self.props.text:
+            self.hide_clear_button()
+        else:
+            self.show_clear_button()
+