4 files changed, 24 insertions, 0 deletions
diff --git a/source/fitz/document.c b/source/fitz/document.c
index b2590f07..116f38d8 100644
--- a/source/fitz/document.c
+++ b/source/fitz/document.c
@@ -164,6 +164,12 @@ fz_ensure_layout(fz_context *ctx, fz_document *doc)
 }
 
 int
+fz_is_document_reflowable(fz_context *ctx, fz_document *doc)
+{
+	return doc ? doc->is_reflowable : 0;
+}
+
+int
 fz_needs_password(fz_context *ctx, fz_document *doc)
 {
 	if (doc && doc->needs_password)
diff --git a/source/html/epub-doc.c b/source/html/epub-doc.c
index 541fb7eb..ec506409 100644
--- a/source/html/epub-doc.c
+++ b/source/html/epub-doc.c
@@ -425,6 +425,7 @@ epub_init(fz_context *ctx, fz_archive *zip)
 	doc->super.count_pages = epub_count_pages;
 	doc->super.load_page = epub_load_page;
 	doc->super.lookup_metadata = epub_lookup_metadata;
+	doc->super.is_reflowable = 1;
 
 	fz_try(ctx)
 	{
diff --git a/source/html/html-doc.c b/source/html/html-doc.c
index 2e8b8ec4..f14ddc35 100644
--- a/source/html/html-doc.c
+++ b/source/html/html-doc.c
@@ -123,6 +123,7 @@ htdoc_open_document_with_stream(fz_context *ctx, fz_stream *file)
 	doc->super.layout = htdoc_layout;
 	doc->super.count_pages = htdoc_count_pages;
 	doc->super.load_page = htdoc_load_page;
+	doc->super.is_reflowable = 1;
 
 	doc->zip = fz_open_directory(ctx, ".");
 	doc->set = fz_new_html_font_set(ctx);
@@ -150,6 +151,7 @@ htdoc_open_document(fz_context *ctx, const char *filename)
 	doc->super.count_pages = htdoc_count_pages;
 	doc->super.load_page = htdoc_load_page;
 	doc->super.lookup_metadata = htdoc_lookup_metadata;
+	doc->super.is_reflowable = 1;
 
 	doc->zip = fz_open_directory(ctx, dirname);
 	doc->set = fz_new_html_font_set(ctx);
diff --git a/source/tools/murun.c b/source/tools/murun.c
index a1671bbd..e46033d9 100644
--- a/source/tools/murun.c
+++ b/source/tools/murun.c
@@ -1435,6 +1435,20 @@ static void ffi_Document_getMetaData(js_State *J)
 	js_pushstring(J, info);
 }
 
+static void ffi_Document_isReflowable(js_State *J)
+{
+	fz_context *ctx = js_getcontext(J);
+	fz_document *doc = js_touserdata(J, 0, "fz_document");
+	int is_reflowable;
+
+	fz_try(ctx)
+		is_reflowable = fz_is_document_reflowable(ctx, doc);
+	fz_catch(ctx)
+		rethrow(J);
+
+	js_pushboolean(J, is_reflowable);
+}
+
 static void ffi_Document_layout(js_State *J)
 {
 	fz_context *ctx = js_getcontext(J);
@@ -3438,6 +3452,7 @@ int murun_main(int argc, char **argv)
 		jsB_propfun(J, "Document.authenticatePassword", ffi_Document_authenticatePassword, 1);
 		//jsB_propfun(J, "Document.hasPermission", ffi_Document_hasPermission, 1);
 		jsB_propfun(J, "Document.getMetaData", ffi_Document_getMetaData, 1);
+		jsB_propfun(J, "Document.isReflowable", ffi_Document_isReflowable, 0);
 		jsB_propfun(J, "Document.layout", ffi_Document_layout, 3);
 		jsB_propfun(J, "Document.countPages", ffi_Document_countPages, 0);
 		jsB_propfun(J, "Document.loadPage", ffi_Document_loadPage, 1);