Update to Font Awesome 5. Add experimental Icon class. Simplify document loading icon.

Signed-off-by: Michael Price <loneviking72@gmail.com>
Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/appearance/classes.py

@@ -0,0 +1,30 @@
+from __future__ import unicode_literals
+
+from django.template import Template, Context
+
+
+class Icon(object):
+    templates = {
+        'classes': '<i class="{{ classes }}"></i>',
+        'symbol': '<i class="fa fa-{{ symbol }}"></i>'
+    }
+
+    def __init__(self, classes=None, symbol=None):
+        self.classes = classes
+        self.symbol = symbol
+
+        if self.classes:
+            self.template = self.templates['classes']
+        else:
+            self.template = self.templates['symbol']
+
+    def render(self):
+        return Template(self.template).render(
+            context=Context(
+                {
+                    'classes': self.classes,
+                    'symbol': self.symbol,
+                }
+            )
+        )
+