Enable screen.availHeight/availWidth/Height/Width

ports/cef/types.rs

@@ -373,6 +373,7 @@ pub struct cef_point {
 //
 // Structure representing a rectangle.
 //
+#[derive(Default)]
 pub struct cef_rect {
   pub x: c_int,
   pub y: c_int,
@@ -1599,6 +1600,7 @@ pub enum cef_cursor_type_t {
 // passed as a parameter to CefRenderHandler::GetScreenInfo and should be filled
 // in by the client.
 ///
+#[derive(Default)]
 pub struct _cef_screen_info {
   ///
   // Device scale factor. Specifies the ratio between physical and logical

ports/cef/window.rs

@@ -14,7 +14,7 @@ use eutil::Downcast;
 use interfaces::CefApp;
 use interfaces::CefBrowser;
 use render_handler::CefRenderHandlerExtensions;
-use types::{cef_cursor_handle_t, cef_cursor_type_t, cef_rect_t};
+use types::{cef_cursor_handle_t, cef_cursor_type_t, cef_rect_t, CefScreenInfo};
 use wrappers::CefWrap;
 
 use compositing::compositor_thread::EventLoopWaker;
@@ -169,6 +169,19 @@ impl Window {
     fn cursor_handle_for_cursor(&self, _: Cursor) -> cef_cursor_handle_t {
         0
     }
+
+    fn screen_info(&self) -> CefScreenInfo {
+        let mut screen_info = CefScreenInfo::default();
+        let browser = self.cef_browser.borrow();
+        if let Some(ref browser) = *browser {
+            browser.get_host()
+                   .get_client()
+                   .get_render_handler()
+                   .get_screen_info(browser.clone(), &mut screen_info);
+        }
+        screen_info
+    }
+
 }
 
 impl WindowMethods for Window {
@@ -501,6 +514,16 @@ impl WindowMethods for Window {
     fn supports_clipboard(&self) -> bool {
         false
     }
+
+    fn screen_size(&self, _: BrowserId) -> Size2D<u32> {
+        let screen_info = self.screen_info();
+        Size2D::new(screen_info.rect.width as u32, screen_info.rect.height as u32)
+    }
+
+    fn screen_avail_size(&self, _: BrowserId) -> Size2D<u32> {
+        let screen_info = self.screen_info();
+        Size2D::new(screen_info.available_rect.width as u32, screen_info.available_rect.height as u32)
+    }
 }
 
 #[cfg(target_os="macos")]

ports/glutin/window.rs

@@ -1033,6 +1033,31 @@ impl WindowMethods for Window {
 
     }
 
+    fn screen_size(&self, _: BrowserId) -> Size2D<u32> {
+        match self.kind {
+            WindowKind::Window(_) => {
+                let (width, height) = glutin::get_primary_monitor().get_dimensions();
+                Size2D::new(width, height)
+            }
+            WindowKind::Headless(ref context) => {
+                Size2D::new(context.width, context.height)
+            }
+        }
+    }
+
+    fn screen_avail_size(&self, _: BrowserId) -> Size2D<u32> {
+        // FIXME: Glutin doesn't have API for available size. Fallback to screen size
+        match self.kind {
+            WindowKind::Window(_) => {
+                let (width, height) = glutin::get_primary_monitor().get_dimensions();
+                Size2D::new(width, height)
+            }
+            WindowKind::Headless(ref context) => {
+                Size2D::new(context.width, context.height)
+            }
+        }
+    }
+
     fn set_animation_state(&self, state: AnimationState) {
         self.animation_state.set(state);
     }