Allow OSX WindowBuilder to specify 'activation behavior'.

4 files changed, 73 insertions, 22 deletions

diff --git a/src/api/cocoa/mod.rs b/src/api/cocoa/mod.rs
index da7c1ec..3c4d802 100644
--- a/src/api/cocoa/mod.rs
+++ b/src/api/cocoa/mod.rs
@@ -15,6 +15,7 @@ use ReleaseBehavior;
 use Robustness;
 use WindowAttributes;
 use native_monitor::NativeMonitorId;
+use os::macos::ActivationPolicy;
 
 use objc::runtime::{Class, Object, Sel, BOOL, YES, NO};
 use objc::declare::ClassDecl;
@@ -181,7 +182,9 @@ impl Drop for WindowDelegate {
 }
 
 #[derive(Default)]
-pub struct PlatformSpecificWindowBuilderAttributes;
+pub struct PlatformSpecificWindowBuilderAttributes {
+    pub activation_policy: ActivationPolicy,
+}
 
 pub struct Window {
     view: IdRef,
@@ -276,7 +279,8 @@ impl<'a> Iterator for WaitEventsIterator<'a> {
 
 impl Window {
     pub fn new(win_attribs: &WindowAttributes, pf_reqs: &PixelFormatRequirements,
-               opengl: &GlAttributes<&Window>, _: &PlatformSpecificWindowBuilderAttributes)
+               opengl: &GlAttributes<&Window>,
+               pl_attribs: &PlatformSpecificWindowBuilderAttributes)
                -> Result<Window, CreationError>
     {
         if opengl.sharing.is_some() {
@@ -294,7 +298,7 @@ impl Window {
             _ => ()
         }
 
-        let app = match Window::create_app() {
+        let app = match Window::create_app(pl_attribs.activation_policy) {
             Some(app) => app,
             None      => { return Err(OsError(format!("Couldn't create NSApplication"))); },
         };
@@ -359,13 +363,13 @@ impl Window {
         Ok(window)
     }
 
-    fn create_app() -> Option<id> {
+    fn create_app(activation_policy: ActivationPolicy) -> Option<id> {
         unsafe {
             let app = NSApp();
             if app == nil {
                 None
             } else {
-                app.setActivationPolicy_(NSApplicationActivationPolicyRegular);
+                app.setActivationPolicy_(activation_policy.into());
                 app.finishLaunching();
                 Some(app)
             }
diff --git a/src/lib.rs b/src/lib.rs
index fb03bed..ff5d52e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -62,7 +62,7 @@ extern crate wayland_client;
 
 pub use events::*;
 pub use headless::{HeadlessRendererBuilder, HeadlessContext};
-pub use window::{WindowBuilder, WindowProxy, PollEventsIterator, WaitEventsIterator};
+pub use window::{WindowProxy, PollEventsIterator, WaitEventsIterator};
 pub use window::{AvailableMonitorsIter, MonitorId, get_available_monitors, get_primary_monitor};
 pub use native_monitor::NativeMonitorId;
 
@@ -105,6 +105,21 @@ pub struct Window {
     window: platform::Window,
 }
 
+/// Object that allows you to build windows.
+pub struct WindowBuilder<'a> {
+    /// The attributes to use to create the window.
+    pub window: WindowAttributes,
+
+    /// The attributes to use to create the context.
+    pub opengl: GlAttributes<&'a platform::Window>,
+
+    // Should be made public once it's stabilized.
+    pf_reqs: PixelFormatRequirements,
+
+    /// Platform-specific configuration.
+    platform_specific: platform::PlatformSpecificWindowBuilderAttributes,
+}
+
 /// Trait that describes objects that have access to an OpenGL context.
 pub trait GlContext {
     /// Sets the context as the current context.
diff --git a/src/os/macos.rs b/src/os/macos.rs
index 16ffe33..06ea55c 100644
--- a/src/os/macos.rs
+++ b/src/os/macos.rs
@@ -1,7 +1,9 @@
 #![cfg(target_os = "macos")]
 
+use std::convert::From;
 use std::os::raw::c_void;
-use Window;
+use cocoa::appkit::NSApplicationActivationPolicy;
+use {Window, WindowBuilder};
 
 /// Additional methods on `Window` that are specific to MacOS.
 pub trait WindowExt {
@@ -17,3 +19,47 @@ impl WindowExt for Window {
         self.window.platform_window() as *mut c_void
     }
 }
+
+/// Corresponds to `NSApplicationActivationPolicy`.
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub enum ActivationPolicy {
+    /// Corresponds to `NSApplicationActivationPolicyRegular`.
+    Regular,
+    /// Corresponds to `NSApplicationActivationPolicyAccessory`.
+    Accessory,
+    /// Corresponds to `NSApplicationActivationPolicyProhibited`.
+    Prohibited,
+}
+
+impl Default for ActivationPolicy {
+    fn default() -> Self {
+        ActivationPolicy::Regular
+    }
+}
+
+impl From<ActivationPolicy> for NSApplicationActivationPolicy {
+    fn from(activation_policy: ActivationPolicy) -> Self {
+        match activation_policy {
+            ActivationPolicy::Regular =>
+                NSApplicationActivationPolicy::NSApplicationActivationPolicyRegular,
+            ActivationPolicy::Accessory =>
+                NSApplicationActivationPolicy::NSApplicationActivationPolicyAccessory,
+            ActivationPolicy::Prohibited =>
+                NSApplicationActivationPolicy::NSApplicationActivationPolicyProhibited,
+        }
+    }
+}
+
+/// Additional methods on `WindowBuilder` that are specific to MacOS.
+pub trait WindowBuilderExt<'a> {
+    fn with_activation_policy(mut self, activation_policy: ActivationPolicy) -> WindowBuilder<'a>;
+}
+
+impl<'a> WindowBuilderExt<'a> for WindowBuilder<'a> {
+    /// Sets the activation policy for the window being built
+    #[inline]
+    fn with_activation_policy(mut self, activation_policy: ActivationPolicy) -> WindowBuilder<'a> {
+        self.platform_specific.activation_policy = activation_policy;
+        self
+    }
+}
diff --git a/src/window.rs b/src/window.rs
index 6d2f0d3..8e82c1d 100644
--- a/src/window.rs
+++ b/src/window.rs
@@ -16,26 +16,12 @@ use PixelFormatRequirements;
 use Robustness;
 use Window;
 use WindowAttributes;
+use WindowBuilder;
 use native_monitor::NativeMonitorId;
 
 use libc;
 use platform;
 
-/// Object that allows you to build windows.
-pub struct WindowBuilder<'a> {
-    /// The attributes to use to create the window.
-    pub window: WindowAttributes,
-
-    /// The attributes to use to create the context.
-    pub opengl: GlAttributes<&'a platform::Window>,
-
-    // Should be made public once it's stabilized.
-    pf_reqs: PixelFormatRequirements,
-
-    /// Platform-specific configuration.
-    platform_specific: platform::PlatformSpecificWindowBuilderAttributes,
-}
-
 impl<'a> WindowBuilder<'a> {
     /// Initializes a new `WindowBuilder` with default values.
     #[inline]