1 files changed, 23 insertions, 0 deletions
diff --git a/components/msg/constellation_msg.rs b/components/msg/constellation_msg.rs
index 027d8efddd8..d7ff06de6a4 100644
--- a/components/msg/constellation_msg.rs
+++ b/components/msg/constellation_msg.rs
@@ -7,6 +7,7 @@
 
 use canvas_traits::CanvasMsg;
 use compositor_msg::Epoch;
+use euclid::point::Point2D;
 use euclid::scale_factor::ScaleFactor;
 use euclid::size::{Size2D, TypedSize2D};
 use hyper::header::Headers;
@@ -283,6 +284,10 @@ pub enum ScriptMsg {
     Failure(Failure),
     /// Notifies the constellation that this frame has received focus.
     Focus(PipelineId),
+    /// Re-send a mouse button event that was sent to the parent window.
+    ForwardMouseButtonEvent(PipelineId, MouseEventType, MouseButton, Point2D<f32>),
+    /// Re-send a mouse move event that was sent to the parent window.
+    ForwardMouseMoveEvent(PipelineId, Point2D<f32>),
     /// Requests that the constellation retrieve the current contents of the clipboard
     GetClipboardContents(IpcSender<String>),
     /// <head> tag finished parsing
@@ -307,6 +312,24 @@ pub enum ScriptMsg {
     ViewportConstrained(PipelineId, ViewportConstraints),
 }
 
+#[derive(Deserialize, HeapSizeOf, Serialize)]
+pub enum MouseEventType {
+    Click,
+    MouseDown,
+    MouseUp,
+}
+
+/// The mouse button involved in the event.
+#[derive(Clone, Copy, Debug, Deserialize, Serialize)]
+pub enum MouseButton {
+    /// The left mouse button.
+    Left,
+    /// The middle mouse button.
+    Middle,
+    /// The right mouse button.
+    Right,
+}
+
 /// Messages from the paint task to the constellation.
 #[derive(Deserialize, Serialize)]
 pub enum PaintMsg {