Handling onsubmit

src/document/forms.c

@@ -91,6 +91,7 @@ done_form(struct form *form)
 
 	mem_free_if(form->action);
 	mem_free_if(form->name);
+	mem_free_if(form->onsubmit);
 	mem_free_if(form->target);
 
 	foreach (fc, form->items) {

src/document/forms.h

@@ -32,6 +32,7 @@ struct form {
 
 	unsigned char *action;
 	unsigned char *name;
+	unsigned char *onsubmit;
 	unsigned char *target;
 	enum form_method method;
 

src/document/html/parser/forms.c

@@ -69,7 +69,7 @@ html_form(struct html_context *html_context, unsigned char *a,
 		}
 		mem_free(al);
 	}
-
+	form->onsubmit = get_attr_val(a, "onsubmit", html_context->options);
 	al = get_attr_val(a, "name", html_context->options);
 	if (al) form->name = al;
 

src/ecmascript/see/form.c

@@ -933,7 +933,7 @@ js_form_submit(struct SEE_interpreter *interp, struct SEE_object *self,
 
 	assert(form);
 	checktime(interp);
-	submit_given_form(ses, doc_view, form);
+	submit_given_form(ses, doc_view, form, 0);
 	SEE_SET_BOOLEAN(res, 0);
 }
 

src/ecmascript/spidermonkey/form.c

@@ -805,7 +805,7 @@ form_submit(JSContext *ctx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
 	struct form *form = find_form_by_form_view(doc_view->document, fv);
 
 	assert(form);
-	submit_given_form(ses, doc_view, form);
+	submit_given_form(ses, doc_view, form, 0);
 
 	boolean_to_jsval(ctx, rval, 0);
 

src/viewer/text/form.c

@@ -1102,7 +1102,8 @@ submit_form(struct session *ses, struct document_view *doc_view, int do_reload)
 }
 
 void
-submit_given_form(struct session *ses, struct document_view *doc_view, struct form *form)
+submit_given_form(struct session *ses, struct document_view *doc_view,
+		  struct form *form, int do_reload)
 {
 /* Added support for submitting forms in hidden
  * links in 1.285, commented code can safely be removed once we have made sure the new
@@ -1125,11 +1126,12 @@ submit_given_form(struct session *ses, struct document_view *doc_view, struct fo
 	if (!list_empty(form->items)) {
 		struct form_control *fc = (struct form_control *)form->items.next;
 		struct uri *uri;
+		enum cache_mode mode = do_reload ? CACHE_MODE_FORCE_RELOAD : CACHE_MODE_NORMAL;
 
 		if (!fc) return;
 		uri = get_form_uri(ses, doc_view, fc);
 		if (!uri) return;
-		goto_uri_frame(ses, uri, form->target, CACHE_MODE_NORMAL);
+		goto_uri_frame(ses, uri, form->target, mode);
 		done_uri(uri);
 	}
 }
@@ -1140,7 +1142,7 @@ auto_submit_form(struct session *ses)
 	struct document *document = ses->doc_view->document;
 
 	if (!list_empty(document->forms))
-		submit_given_form(ses, ses->doc_view, document->forms.next);
+		submit_given_form(ses, ses->doc_view, document->forms.next, 0);
 }
 
 

src/viewer/text/form.h

@@ -88,7 +88,7 @@ void draw_forms(struct terminal *term, struct document_view *doc_view);
 
 enum frame_event_status reset_form(struct session *ses, struct document_view *doc_view, int a);
 enum frame_event_status submit_form(struct session *ses, struct document_view *doc_view, int do_reload);
-void submit_given_form(struct session *ses, struct document_view *doc_view, struct form *form);
+void submit_given_form(struct session *ses, struct document_view *doc_view, struct form *form, int do_reload);
 void auto_submit_form(struct session *ses);
 void do_reset_form(struct document_view *doc_view, struct form *form);
 

src/viewer/text/link.c

@@ -854,6 +854,40 @@ get_link_uri(struct session *ses, struct document_view *doc_view,
 	}
 }
 
+static void
+try_submit_given_form(struct session *ses, struct document_view *doc_view,
+			struct form *form, int do_reload)
+{
+#ifdef CONFIG_ECMASCRIPT
+	if (form->onsubmit) {
+		struct string code;
+
+		if (init_string(&code)) {
+			struct view_state *vs = doc_view->vs;
+			struct ecmascript_interpreter *interpreter;
+			int res = 1;
+			unsigned char *ret = form->onsubmit;
+
+			if (vs->ecmascript_fragile)
+				ecmascript_reset_state(vs);
+			interpreter = vs->ecmascript;
+			assert(interpreter);
+#ifdef CONFIG_ECMASCRIPT_SEE
+			/* SEE doesn't like return outside functions */
+			while ((ret = strstr(ret, "return "))) {
+				while (*ret != ' ') *ret++ = ' ';
+			}
+#endif
+			add_to_string(&code, form->onsubmit);
+			res = ecmascript_eval_boolback(interpreter, &code);
+			done_string(&code);
+			if (!res) return;
+		}
+	}
+#endif
+	submit_given_form(ses, doc_view, form, do_reload);
+}
+
 struct link *
 goto_current_link(struct session *ses, struct document_view *doc_view, int do_reload)
 {
@@ -866,9 +900,13 @@ goto_current_link(struct session *ses, struct document_view *doc_view, int do_re
 	link = get_current_link(doc_view);
 	if (!link) return NULL;
 
-	if (link_is_form(link))
-		uri = get_form_uri(ses, doc_view, get_link_form_control(link));
-	else
+	if (link_is_form(link)) {
+		struct form_control *fc = link->data.form_control;
+		struct form *form = fc->form;
+
+		try_submit_given_form(ses, doc_view, form, do_reload);
+		return link;
+	} else
 		uri = get_link_uri(ses, doc_view, link);
 
 	if (!uri) return NULL;