Moved placeholder to InputField, added additional validation attrs

tw2/forms/widgets.py

@@ -28,9 +28,33 @@ class InputField(FormField):
     type = twc.Variable('Type of input field',
                         default=twc.Required,
                         attribute=True)
+
     value = twc.Param(attribute=True)
+
+    min = twc.Param('Minimum value for field',
+        attribute=True, default=None)
+    max = twc.Param('Maximum value for field',
+        attribute=True, default=None)
+
+    minlength = twc.Param('Minumim length of field',
+        attribute=True, default=None)
+    maxlength = twc.Param('Maximum length of field',
+        attribute=True, default=None)
+
+    required = twc.Param('Input field is required',
+        attribute=True, default=None)
+
+    placeholder = twc.Param('Placeholder text (HTML5 Only)', 
+        attribute=True, default=None)
+
     template = "tw2.forms.templates.input_field"
 
+    def prepare(self):
+        super(InputField, self).prepare()
+        self.safe_modify('attrs')
+        self.attrs['required'] = 'required' if self.required in [True, 'required'] else None
+        self.retuired=None
+
 class PostlabeledInputField(InputField):
     """ Inherits :class:`InputField`, but with a :attr:`text`
     label that follows the input field """
@@ -42,14 +66,12 @@ class PostlabeledInputField(InputField):
 
 class TextField(InputField):
     size = twc.Param('Size of the field', default=None, attribute=True)
-    placeholder = twc.Param('Placeholder text (HTML5 Only)', attribute=True, default=None)
     type = 'text'
 
 
 class TextArea(FormField):
     rows = twc.Param('Number of rows', default=None, attribute=True)
     cols = twc.Param('Number of columns', default=None, attribute=True)
-    placeholder = twc.Param('Placeholder text (HTML5 Only)', attribute=True, default=None)
     template = "tw2.forms.templates.textarea"