Share url view

* adds modal for rendering the share url
* adds new custom_widget text-to-clipboard-input.html
  * provides a copy button for writing the text input's value into the client's clipboard
* adds translation

intervention/forms.py

@@ -220,15 +220,28 @@ class OpenInterventionForm(EditInterventionForm):
             self.disable_form_field(field)
 
 
+class DummyFilterInput(forms.HiddenInput):
+    """ A dummy input widget
+
+    Does not render anything. Can be used to keep filter logic using django_filter without having a pre defined
+    filter widget being rendered to the template.
+
+    """
+    template_name = "konova/custom_widgets/dummy-filter-input.html"
+
+
+class TextToClipboardInput(forms.TextInput):
+    template_name = "konova/custom_widgets/text-to-clipboard-input.html"
+
+
 class ShareInterventionForm(BaseModalForm):
     url = forms.CharField(
         label=_("Share link"),
         label_suffix="",
-        disabled=True,
         required=False,
-        widget=forms.TextInput(
+        widget=TextToClipboardInput(
             attrs={
-                "style": "width:100%",
+                "readonly": True
             }
         )
     )
@@ -251,16 +264,3 @@ class ShareInterventionForm(BaseModalForm):
             "url",
             self.share_link
         )
-
-    def save(self):
-        i = 0
-
-
-class DummyFilterInput(forms.HiddenInput):
-    """ A dummy input widget
-
-    Does not render anything. Can be used to keep filter logic using django_filter without having a pre defined
-    filter widget being rendered to the template.
-
-    """
-    template_name = "intervention/dummy-filter-input.html"

intervention/templates/intervention/dummy-filter-input.html

@@ -1,5 +0,0 @@
-{% comment %}
-    This is an empty template.
-    It's used to dismiss a default widget for a django_filter filter and to use a predefined input directly in the
-    template without losing the comfort of matching the filter methods declared in the filter
-{% endcomment %}