Add support for fullscreen #10102

components/compositing/compositor.rs

@@ -633,6 +633,10 @@ impl<Window: WindowMethods> IOCompositor<Window> {
                 func();
             }
 
+            (Msg::SetFullscreenState(state), ShutdownState::NotShuttingDown) => {
+                self.window.set_fullscreen_state(state);
+            }
+
             // When we are shutting_down, we need to avoid performing operations
             // such as Paint that may crash because we have begun tearing down
             // the rest of our resources.

components/compositing/compositor_thread.rs

@@ -128,7 +128,9 @@ pub enum Msg {
     /// Runs a closure in the compositor thread.
     /// It's used to dispatch functions from webrender to the main thread's event loop.
     /// Required to allow WGL GLContext sharing in Windows.
-    Dispatch(Box<Fn() + Send>)
+    Dispatch(Box<Fn() + Send>),
+    /// Enter or exit fullscreen
+    SetFullscreenState(bool),
 }
 
 impl Debug for Msg {
@@ -161,6 +163,7 @@ impl Debug for Msg {
             Msg::PipelineExited(..) => write!(f, "PipelineExited"),
             Msg::NewScrollFrameReady(..) => write!(f, "NewScrollFrameReady"),
             Msg::Dispatch(..) => write!(f, "Dispatch"),
+            Msg::SetFullscreenState(..) => write!(f, "SetFullscreenState"),
         }
     }
 }

components/compositing/windowing.rs

@@ -119,6 +119,8 @@ pub trait WindowMethods {
     fn set_inner_size(&self, size: Size2D<u32>);
     /// Set the window position
     fn set_position(&self, point: Point2D<i32>);
+    /// Set fullscreen state
+    fn set_fullscreen_state(&self, state: bool);
 
     /// Sets the page title for the current page.
     fn set_page_title(&self, title: Option<String>);