state: Use IM hint and purpose for layout selection

src/animation.rs

@@ -6,19 +6,21 @@
 
 use std::time::Duration;
 
+use crate::imservice::ContentPurpose;
+use crate::layout::ArrangementKind;
 use crate::outputs::OutputId;
 use crate::panel::PixelSize;
-use crate::layout::ArrangementKind;
 
 /// The keyboard should hide after this has elapsed to prevent flickering.
 pub const HIDING_TIMEOUT: Duration = Duration::from_millis(200);
 
-/// Panel contents
+/// Description of parameters which influence panel contents
 #[derive(PartialEq, Clone, Debug)]
 pub struct Contents {
     pub name: String,
     pub kind: ArrangementKind,
     pub overlay_name: Option<String>,
+    pub purpose: ContentPurpose,
 }
 
 /// The outwardly visible state of visibility

src/data/loading.rs

@@ -305,6 +305,17 @@ fn load_layout_data_with_fallback(
     panic!("No useful layout found!");
 }
 
+pub fn load_layout(
+    name: String,
+    kind: ArrangementKind,
+    variant: ContentPurpose,
+    overlay: Option<String>,
+) -> layout::Layout {
+    let overlay = overlay.as_ref().map(String::as_str);
+    let (found_kind, layout)
+        = load_layout_data_with_fallback(&name, kind, variant, overlay);
+    layout::Layout::new(layout, found_kind, variant)
+}
 
 #[cfg(test)]
 mod tests {

src/imservice.rs

@@ -226,7 +226,7 @@ bitflags!{
 /// use rs::imservice::ContentPurpose;
 /// assert_eq!(ContentPurpose::Alpha as u32, 1);
 /// ```
-#[derive(Debug, Copy, Clone)]
+#[derive(Debug, Copy, Clone, PartialEq)]
 pub enum ContentPurpose {
     Normal = 0,
     Alpha = 1,

src/main.rs

@@ -19,6 +19,7 @@ mod c {
     use crate::event_loop::driver;
     use crate::imservice::IMService;
     use crate::imservice::c::InputMethod;
+    use crate::layout;
     use crate::outputs::Outputs;
     use crate::state;
     use crate::submission::Submission;
@@ -79,6 +80,8 @@ mod c {
         #[allow(improper_ctypes)]
         fn init_wayland(wayland: *mut Wayland);
         fn eekboard_context_service_set_hint_purpose(service: HintManager, hint: u32, purpose: u32);
+        #[allow(improper_ctypes)]
+        fn eekboard_context_service_set_layout(service: HintManager, layout: *const layout::Layout, timestamp: u32);
         // This should probably only get called from the gtk main loop,
         // given that dbus handler is using glib.
         fn dbus_handler_set_visible(dbus: *const DBusHandler, visible: u8);
@@ -176,6 +179,7 @@ mod c {
         }
         
         if let Some(commands::SetLayout { description }) = msg.layout_selection {
+            //loading::
             dbg!(description);
         }
     }

src/state.rs

@@ -462,6 +462,10 @@ Outcome:
                             kind: arrangement,
                             name: layout_name,
                             overlay_name: overlay,
+                            purpose: match self.im {
+                                InputMethod::Active(InputMethodDetails { purpose, .. }) => purpose,
+                                InputMethod::InactiveSince(_) => ContentPurpose::Normal,
+                            },
                         }
                     };