feat: extract translatable strings from standard web forms (#34237)

* feat: extract translatable strings from standard web forms

* fix: extract select options

babel_extractors.csv

@@ -1,6 +1,7 @@
 **/hooks.py,frappe.gettext.extractors.navbar.extract
 **/doctype/*/*.json,frappe.gettext.extractors.doctype.extract
 **/workspace/*/*.json,frappe.gettext.extractors.workspace.extract
+**/web_form/*/*.json,frappe.gettext.extractors.web_form.extract
 **/onboarding_step/*/*.json,frappe.gettext.extractors.onboarding_step.extract
 **/module_onboarding/*/*.json,frappe.gettext.extractors.module_onboarding.extract
 **/report/*/*.json,frappe.gettext.extractors.report.extract

frappe/gettext/extractors/web_form.py

@@ -0,0 +1,73 @@
+import json
+
+
+def extract(fileobj, *args, **kwargs):
+	"""
+	Extract messages from Web Form JSON files. To be used to babel extractor
+	:param fileobj: the file-like object the messages should be extracted from
+	:rtype: `iterator`
+	"""
+	data = json.load(fileobj)
+
+	if isinstance(data, list):
+		return
+
+	if data.get("doctype") != "Web Form":
+		return
+
+	web_form_name = data.get("name")
+
+	# Extract main web form fields
+	if title := data.get("title"):
+		yield None, "_", title, [f"Title of the {web_form_name} Web Form"]
+
+	if introduction_text := data.get("introduction_text"):
+		yield None, "_", introduction_text, [f"Introduction text of the {web_form_name} Web Form"]
+
+	if success_message := data.get("success_message"):
+		yield None, "_", success_message, [f"Success message of the {web_form_name} Web Form"]
+
+	if success_title := data.get("success_title"):
+		yield None, "_", success_title, [f"Success title of the {web_form_name} Web Form"]
+
+	if list_title := data.get("list_title"):
+		yield None, "_", list_title, [f"List title of the {web_form_name} Web Form"]
+
+	if button_label := data.get("button_label"):
+		yield None, "_", button_label, [f"Button label of the {web_form_name} Web Form"]
+
+	if meta_title := data.get("meta_title"):
+		yield None, "_", meta_title, [f"Meta title of the {web_form_name} Web Form"]
+
+	if meta_description := data.get("meta_description"):
+		yield None, "_", meta_description, [f"Meta description of the {web_form_name} Web Form"]
+
+	# Extract web form fields
+	for field in data.get("web_form_fields", []):
+		if label := field.get("label"):
+			yield None, "_", label, [f"Label of a field in the {web_form_name} Web Form"]
+
+		if description := field.get("description"):
+			yield None, "_", description, [f"Description of a field in the {web_form_name} Web Form"]
+
+		# Extract options for Select fields
+		if field.get("fieldtype") == "Select" and (options := field.get("options")):
+			skip_options = (
+				web_form_name == "edit-profile" and field.get("fieldname") == "time_zone"
+			)  # Dumb workaround for avoiding a flood of strings from this field
+			if isinstance(options, str) and not skip_options:
+				# Handle both single values and newline-separated values
+				option_list = options.split("\n") if "\n" in options else [options]
+				for option in option_list:
+					if option.strip():
+						yield (
+							None,
+							"_",
+							option.strip(),
+							[f"Option in a Select field in the {web_form_name} Web Form"],
+						)
+
+	# Extract list columns
+	for column in data.get("list_columns", []):
+		if isinstance(column, dict) and (label := column.get("label")):
+			yield None, "_", label, [f"Label of a list column in the {web_form_name} Web Form"]