[gen] Added support for right-to-left (RTL) languages.

gen/mixins/ToolMixin.py

@@ -110,7 +110,7 @@ class ToolMixin(BaseMixin):
         if not cfg.languageSelector: return
         if len(cfg.languages) < 2: return
         page = self.REQUEST.get('ACTUAL_URL').split('/')[-1]
-        return page not in ('edit', 'query', 'search')
+        return page not in ('edit', 'query', 'search', 'do')
 
     def getLanguages(self):
         '''Returns the supported languages. First one is the default.'''
@@ -128,11 +128,21 @@ class ToolMixin(BaseMixin):
         rq.RESPONSE.setCookie('_ZopeLg', rq['language'], path='/')
         return self.goto(rq['HTTP_REFERER'])
 
+    def flipLanguageDirection(self, align, dir):
+        '''According to language direction p_dir ('ltr' or 'rtl'), this method
+           turns p_align from 'left' to 'right' (or the inverse) when
+           required.'''
+        if dir == 'ltr': return align
+        if align == 'left': return 'right'
+        if align == 'right': return 'left'
+        return align
+
     def getGlobalCssJs(self):
         '''Returns the list of CSS and JS files to include in the main template.
            The method ensures that appy.css and appy.js come first.'''
         names = self.getPhysicalRoot().ui.objectIds('File')
         names.remove('appy.js'); names.insert(0, 'appy.js')
+        names.remove('appyrtl.css'); names.insert(0, 'appyrtl.css')
         names.remove('appy.css'); names.insert(0, 'appy.css')
         return names
 

gen/mixins/__init__.py

@@ -10,6 +10,7 @@ from appy.gen.utils import *
 from appy.gen.layout import Table, defaultPageLayouts
 from appy.gen.descriptors import WorkflowDescriptor, ClassDescriptor
 from appy.shared.utils import sequenceTypes
+from appy.shared.data import rtlLanguages
 
 # ------------------------------------------------------------------------------
 class BaseMixin:
@@ -1404,6 +1405,11 @@ class BaseMixin:
         if '-' in res: res = res[:res.find('-')]
         return res
 
+    def getLanguageDirection(self, lang):
+        '''Determines if p_lang is a LTR or RTL language.'''
+        if lang in rtlLanguages: return 'rtl'
+        return 'ltr'
+
     def formatText(self, text, format='html'):
         '''Produces a representation of p_text into the desired p_format, which
            is "html" by default.'''