Pass scroll wheel action into contents. Handle scrolling of box scrollbars and iframes.

svn path=/trunk/netsurf/; revision=13200

3 files changed, 18 insertions, 1 deletions

diff --git a/content/content.c b/content/content.c
index 28d18bcab..a4f36e2f6 100644
--- a/content/content.c
+++ b/content/content.c
@@ -733,6 +733,19 @@ void content_get_contextual_content(struct hlcache_handle *h,
 }
 
 
+bool content_scroll_at_point(struct hlcache_handle *h,
+		int x, int y, int scrx, int scry)
+{
+	struct content *c = hlcache_handle_get_content(h);
+	assert(c != 0);
+
+	if (c->handler->scroll_at_point != NULL)
+		return c->handler->scroll_at_point(c, x, y, scrx, scry);
+
+	return false;
+}
+
+
 void content_add_error(struct content *c, const char *token,
 		unsigned int line)
 {
diff --git a/content/content.h b/content/content.h
index 3fd0bd63a..6e900922a 100644
--- a/content/content.h
+++ b/content/content.h
@@ -175,6 +175,8 @@ void content_close(struct hlcache_handle *h);
 struct selection *content_get_selection(struct hlcache_handle *h);
 void content_get_contextual_content(struct hlcache_handle *h,
 		int x, int y, struct contextual_content *data);
+bool content_scroll_at_point(struct hlcache_handle *h,
+		int x, int y, int scrx, int scry);
 struct content_rfc5988_link *content_find_rfc5988_link(struct hlcache_handle *c,
 		lwc_string *rel);
 
diff --git a/content/content_protected.h b/content/content_protected.h
index 05b1940f2..54825589e 100644
--- a/content/content_protected.h
+++ b/content/content_protected.h
@@ -68,7 +68,9 @@ struct content_handler {
 	void (*close)(struct content *c);
 	struct selection * (*get_selection)(struct content *c);
 	void (*get_contextual_content)(struct content *c, int x, int y,
-				struct contextual_content *data);
+			struct contextual_content *data);
+	bool (*scroll_at_point)(struct content *c, int x, int y,
+			int scrx, int scry);
 	nserror (*clone)(const struct content *old, struct content **newc);
 	bool (*matches_quirks)(const struct content *c, bool quirks);
 	content_type (*type)(void);