Merge pull request #301 from haricot/patch-17

Add retro compatibility cms 3.4

cmsplugin_cascade/icon/cms_toolbars.py

@@ -2,7 +2,9 @@
 from __future__ import unicode_literals
 
 from django.utils.translation import ugettext_lazy as _
+from distutils.version import LooseVersion
 
+from cms import __version__ as CMS_VERSION
 from cms.extensions.toolbar import ExtensionToolbar
 from cms.toolbar_pool import toolbar_pool
 from cms.toolbar.items import Break
@@ -21,5 +23,8 @@ def populate(self):
             page_extension, url = self.get_page_extension_admin()
             if url:
                 position = current_page_menu.find_first(Break, identifier=PAGE_MENU_SECOND_BREAK)
-                disabled = not self.toolbar.edit_mode_active
+                if LooseVersion(CMS_VERSION) < LooseVersion('3.5'):
+                    disabled = not self.toolbar.edit_mode
+                else:
+                    disabled = not self.toolbar.edit_mode_active
                 current_page_menu.add_modal_item(_("Choose Icon Font"), position=position, url=url, disabled=disabled)