html_canvas_element: height and width have default values for canvasses

Signed-off-by: Daniel Silverstone <dsilvers@digital-scurf.org>

1 files changed, 26 insertions, 2 deletions

diff --git a/src/html/html_canvas_element.c b/src/html/html_canvas_element.c
index 2543e5b..8e5d3fc 100644
--- a/src/html/html_canvas_element.c
+++ b/src/html/html_canvas_element.c
@@ -152,10 +152,22 @@ dom_exception
 dom_html_canvas_element_get_width(dom_html_canvas_element *canvas,
 				  dom_ulong *width)
 {
-	return dom_html_element_get_dom_ulong_property(&canvas->base,
+	dom_exception exc;
+
+	exc = dom_html_element_get_dom_ulong_property(&canvas->base,
 						     "width",
 						     SLEN("width"),
 						     width);
+
+	if (exc != DOM_NO_ERR)
+		return exc;
+
+	if (*width == (dom_ulong)-1) {
+		/* width not set on the canvas, default is 300px */
+		*width = 300;
+	}
+
+	return DOM_NO_ERR;
 }
 
 dom_exception
@@ -172,10 +184,22 @@ dom_exception
 dom_html_canvas_element_get_height(dom_html_canvas_element *canvas,
 				  dom_ulong *height)
 {
-	return dom_html_element_get_dom_ulong_property(&canvas->base,
+	dom_exception exc;
+
+	exc = dom_html_element_get_dom_ulong_property(&canvas->base,
 						     "height",
 						     SLEN("height"),
 						     height);
+
+	if (exc != DOM_NO_ERR)
+		return exc;
+
+	if (*height == (dom_ulong)-1) {
+		/* height not set on the canvas, default is 150px */
+		*height = 150;
+	}
+
+	return DOM_NO_ERR;
 }
 
 dom_exception