Call AA/F formatting when synthesizing appearance stream.

3 files changed, 32 insertions, 19 deletions

diff --git a/include/mupdf/pdf/event.h b/include/mupdf/pdf/event.h
index 176ba71f..8c6709a7 100644
--- a/include/mupdf/pdf/event.h
+++ b/include/mupdf/pdf/event.h
@@ -213,4 +213,6 @@ void pdf_event_issue_exec_dialog(fz_context *ctx, pdf_document *doc);
 void pdf_event_issue_launch_url(fz_context *ctx, pdf_document *doc, const char *url, int new_frame);
 void pdf_event_issue_mail_doc(fz_context *ctx, pdf_document *doc, pdf_mail_doc_event *event);
 
+void pdf_execute_action(fz_context *ctx, pdf_document *doc, pdf_obj *obj, pdf_obj *a);
+
 #endif
diff --git a/source/pdf/pdf-appearance.c b/source/pdf/pdf-appearance.c
index 5693fe3d..c3e94baa 100644
--- a/source/pdf/pdf-appearance.c
+++ b/source/pdf/pdf-appearance.c
@@ -990,7 +990,30 @@ pdf_write_widget_appearance(fz_context *ctx, pdf_annot *annot, fz_buffer *buf,
 	int ff = pdf_get_field_flags(ctx, annot->page->doc, annot->obj);
 	if (pdf_name_eq(ctx, ft, PDF_NAME(Tx)))
 	{
-		char *text = pdf_field_value(ctx, annot->page->doc, annot->obj);
+		pdf_document *doc = annot->page->doc;
+		pdf_obj *f = pdf_dict_getl(ctx, annot->obj, PDF_NAME(AA), PDF_NAME(F), NULL);
+		char *text = NULL;
+		if (f && doc->js)
+		{
+			pdf_js_event e;
+			e.target = annot->obj;
+			e.value = pdf_field_value(ctx, doc, annot->obj);
+			fz_try(ctx)
+				pdf_js_setup_event(doc->js, &e);
+			fz_always(ctx)
+				fz_free(ctx, e.value);
+			fz_catch(ctx)
+				fz_rethrow(ctx);
+			pdf_execute_action(ctx, doc, annot->obj, f);
+			if (pdf_js_get_event(doc->js)->rc)
+				text = fz_strdup(ctx, pdf_js_get_event(doc->js)->value);
+			else
+				text = pdf_field_value(ctx, doc, annot->obj);
+		}
+		else
+		{
+			text = pdf_field_value(ctx, doc, annot->obj);
+		}
 		fz_try(ctx)
 			pdf_write_tx_widget_appearance(ctx, annot, buf, rect, bbox, matrix, res, text, ff);
 		fz_always(ctx)
diff --git a/source/pdf/pdf-form.c b/source/pdf/pdf-form.c
index 167e1729..54cb1472 100644
--- a/source/pdf/pdf-form.c
+++ b/source/pdf/pdf-form.c
@@ -292,7 +292,7 @@ static void reset_form(fz_context *ctx, pdf_document *doc, pdf_obj *fields, int
 	}
 }
 
-static void execute_action(fz_context *ctx, pdf_document *doc, pdf_obj *obj, pdf_obj *a)
+void pdf_execute_action(fz_context *ctx, pdf_document *doc, pdf_obj *obj, pdf_obj *a)
 {
 	if (a)
 	{
@@ -343,7 +343,7 @@ static void execute_action_chain(fz_context *ctx, pdf_document *doc, pdf_obj *ob
 
 	while (a)
 	{
-		execute_action(ctx, doc, obj, a);
+		pdf_execute_action(ctx, doc, obj, a);
 		a = pdf_dict_get(ctx, a, PDF_NAME(Next));
 	}
 }
@@ -359,7 +359,7 @@ static void execute_additional_action(fz_context *ctx, pdf_document *doc, pdf_ob
 		e.target = obj;
 		e.value = "";
 		pdf_js_setup_event(doc->js, &e);
-		execute_action(ctx, doc, obj, a);
+		pdf_execute_action(ctx, doc, obj, a);
 	}
 }
 
@@ -428,7 +428,7 @@ static void recalculate(fz_context *ctx, pdf_document *doc)
 					e.target = field;
 					e.value = pdf_field_value(ctx, doc, field);
 					pdf_js_setup_event(doc->js, &e);
-					execute_action(ctx, doc, field, calc);
+					pdf_execute_action(ctx, doc, field, calc);
 					/* A calculate action, updates event.value. We need
 					* to place the value in the field */
 					update_field_value(ctx, doc, field, pdf_js_get_event(doc->js)->value);
@@ -716,7 +716,6 @@ int pdf_widget_type(fz_context *ctx, pdf_widget *widget)
 static int set_text_field_value(fz_context *ctx, pdf_document *doc, pdf_obj *field, const char *text)
 {
 	pdf_obj *v = pdf_dict_getp(ctx, field, "AA/V");
-	pdf_obj *f = pdf_dict_getp(ctx, field, "AA/F");
 
 	if (v && doc->js)
 	{
@@ -724,18 +723,7 @@ static int set_text_field_value(fz_context *ctx, pdf_document *doc, pdf_obj *fie
 		e.target = field;
 		e.value = fz_strdup(ctx, text);
 		pdf_js_setup_event(doc->js, &e);
-		execute_action(ctx, doc, field, v);
-		if (!pdf_js_get_event(doc->js)->rc)
-			return 0;
-		text = pdf_js_get_event(doc->js)->value;
-	}
-	if (f && doc->js)
-	{
-		pdf_js_event e;
-		e.target = field;
-		e.value = fz_strdup(ctx, text);
-		pdf_js_setup_event(doc->js, &e);
-		execute_action(ctx, doc, field, f);
+		pdf_execute_action(ctx, doc, field, v);
 		if (!pdf_js_get_event(doc->js)->rc)
 			return 0;
 		text = pdf_js_get_event(doc->js)->value;
@@ -1083,7 +1071,7 @@ static int run_keystroke(fz_context *ctx, pdf_document *doc, pdf_obj *field, cha
 		e.target = field;
 		e.value = *text;
 		pdf_js_setup_event(doc->js, &e);
-		execute_action(ctx, doc, field, k);
+		pdf_execute_action(ctx, doc, field, k);
 
 		if (!pdf_js_get_event(doc->js)->rc)
 			return 0;