[3.1.x] Fixed #31536 -- Fixed rendering of disabled AdminFileWidget and ClearableFileInput.

Backport of e46c2326c8 from master

django/contrib/admin/templates/admin/widgets/clearable_file_input.html

@@ -1,6 +1,6 @@
 {% if widget.is_initial %}<p class="file-upload">{{ widget.initial_text }}: <a href="{{ widget.value.url }}">{{ widget.value }}</a>{% if not widget.required %}
 <span class="clearable-file-input">
-<input type="checkbox" name="{{ widget.checkbox_name }}" id="{{ widget.checkbox_id }}">
+<input type="checkbox" name="{{ widget.checkbox_name }}" id="{{ widget.checkbox_id }}"{% if widget.attrs.disabled %} disabled{% endif %}>
 <label for="{{ widget.checkbox_id }}">{{ widget.clear_checkbox_label }}</label></span>{% endif %}<br>
 {{ widget.input_text }}:{% endif %}
 <input type="{{ widget.type }}" name="{{ widget.name }}"{% include "django/forms/widgets/attrs.html" %}>{% if widget.is_initial %}</p>{% endif %}

django/forms/jinja2/django/forms/widgets/clearable_file_input.html

@@ -1,5 +1,5 @@
 {% if widget.is_initial %}{{ widget.initial_text }}: <a href="{{ widget.value.url }}">{{ widget.value }}</a>{% if not widget.required %}
-<input type="checkbox" name="{{ widget.checkbox_name }}" id="{{ widget.checkbox_id }}">
+<input type="checkbox" name="{{ widget.checkbox_name }}" id="{{ widget.checkbox_id }}"{% if widget.attrs.disabled %} disabled{% endif %}>
 <label for="{{ widget.checkbox_id }}">{{ widget.clear_checkbox_label }}</label>{% endif %}<br>
 {{ widget.input_text }}:{% endif %}
 <input type="{{ widget.type }}" name="{{ widget.name }}"{% include "django/forms/widgets/attrs.html" %}>

django/forms/templates/django/forms/widgets/clearable_file_input.html

@@ -1,5 +1,5 @@
 {% if widget.is_initial %}{{ widget.initial_text }}: <a href="{{ widget.value.url }}">{{ widget.value }}</a>{% if not widget.required %}
-<input type="checkbox" name="{{ widget.checkbox_name }}" id="{{ widget.checkbox_id }}">
+<input type="checkbox" name="{{ widget.checkbox_name }}" id="{{ widget.checkbox_id }}"{% if widget.attrs.disabled %} disabled{% endif %}>
 <label for="{{ widget.checkbox_id }}">{{ widget.clear_checkbox_label }}</label>{% endif %}<br>
 {{ widget.input_text }}:{% endif %}
 <input type="{{ widget.type }}" name="{{ widget.name }}"{% include "django/forms/widgets/attrs.html" %}>

tests/admin_widgets/tests.py

@@ -487,6 +487,20 @@ class AdminFileWidgetTests(TestDataMixin, TestCase):
             },
         )
 
+    def test_render_disabled(self):
+        widget = widgets.AdminFileWidget(attrs={'disabled': True})
+        self.assertHTMLEqual(
+            widget.render('test', self.album.cover_art),
+            '<p class="file-upload">Currently: <a href="%(STORAGE_URL)salbums/'
+            r'hybrid_theory.jpg">albums\hybrid_theory.jpg</a> '
+            '<span class="clearable-file-input">'
+            '<input type="checkbox" name="test-clear" id="test-clear_id" disabled>'
+            '<label for="test-clear_id">Clear</label></span><br>'
+            'Change: <input type="file" name="test" disabled></p>' % {
+                'STORAGE_URL': default_storage.url(''),
+            },
+        )
+
     def test_readonly_fields(self):
         """
         File widgets should render as a link when they're marked "read only."

tests/forms_tests/widget_tests/test_clearablefileinput.py

@@ -74,6 +74,21 @@ class ClearableFileInputTest(WidgetTest):
         """
         self.check_html(self.widget, 'myfile', None, html='<input type="file" name="myfile">')
 
+    def test_render_disabled(self):
+        self.check_html(
+            self.widget,
+            'myfile',
+            FakeFieldFile(),
+            attrs={'disabled': True},
+            html=(
+                'Currently: <a href="something">something</a>'
+                '<input type="checkbox" name="myfile-clear" '
+                'id="myfile-clear_id" disabled>'
+                '<label for="myfile-clear_id">Clear</label><br>'
+                'Change: <input type="file" name="myfile" disabled>'
+            ),
+        )
+
     def test_render_as_subwidget(self):
         """A ClearableFileInput as a subwidget of MultiWidget."""
         widget = MultiWidget(widgets=(self.widget,))