all: bring back xdg portals

src/wl_usr/usr_ifs/usr_zwlr_screencopy_frame.rs

@@ -0,0 +1,128 @@
+use {
+    crate::{
+        object::Version,
+        utils::clonecell::CloneCell,
+        wire::{ZwlrScreencopyFrameV1Id, zwlr_screencopy_frame_v1::*},
+        wl_usr::{UsrCon, usr_ifs::usr_wl_buffer::UsrWlBuffer, usr_object::UsrObject},
+    },
+    std::{convert::Infallible, rc::Rc},
+};
+
+pub struct UsrZwlrScreencopyFrame {
+    pub id: ZwlrScreencopyFrameV1Id,
+    pub con: Rc<UsrCon>,
+    pub owner: CloneCell<Option<Rc<dyn UsrZwlrScreencopyFrameOwner>>>,
+    pub version: Version,
+}
+
+pub trait UsrZwlrScreencopyFrameOwner {
+    fn buffer(&self, buffer: &Buffer) {
+        let _ = buffer;
+    }
+
+    fn flags(&self, flags: &Flags) {
+        let _ = flags;
+    }
+
+    fn ready(&self, ready: &Ready) {
+        let _ = ready;
+    }
+
+    fn failed(&self) {}
+
+    fn damage(&self, damage: &Damage) {
+        let _ = damage;
+    }
+
+    fn linux_dmabuf(&self, dmabuf: &LinuxDmabuf) {
+        let _ = dmabuf;
+    }
+
+    fn buffer_done(&self) {}
+}
+
+impl UsrZwlrScreencopyFrame {
+    #[expect(dead_code)]
+    pub fn copy(&self, buffer: &UsrWlBuffer) {
+        self.con.request(Copy {
+            self_id: self.id,
+            buffer: buffer.id,
+        });
+    }
+
+    #[expect(dead_code)]
+    pub fn copy_with_damage(&self, buffer: &UsrWlBuffer) {
+        self.con.request(CopyWithDamage {
+            self_id: self.id,
+            buffer: buffer.id,
+        });
+    }
+}
+
+impl ZwlrScreencopyFrameV1EventHandler for UsrZwlrScreencopyFrame {
+    type Error = Infallible;
+
+    fn buffer(&self, ev: Buffer, _slf: &Rc<Self>) -> Result<(), Self::Error> {
+        if let Some(owner) = self.owner.get() {
+            owner.buffer(&ev);
+        }
+        Ok(())
+    }
+
+    fn flags(&self, ev: Flags, _slf: &Rc<Self>) -> Result<(), Self::Error> {
+        if let Some(owner) = self.owner.get() {
+            owner.flags(&ev);
+        }
+        Ok(())
+    }
+
+    fn ready(&self, ev: Ready, _slf: &Rc<Self>) -> Result<(), Self::Error> {
+        if let Some(owner) = self.owner.get() {
+            owner.ready(&ev);
+        }
+        Ok(())
+    }
+
+    fn failed(&self, _ev: Failed, _slf: &Rc<Self>) -> Result<(), Self::Error> {
+        if let Some(owner) = self.owner.get() {
+            owner.failed();
+        }
+        Ok(())
+    }
+
+    fn damage(&self, ev: Damage, _slf: &Rc<Self>) -> Result<(), Self::Error> {
+        if let Some(owner) = self.owner.get() {
+            owner.damage(&ev);
+        }
+        Ok(())
+    }
+
+    fn linux_dmabuf(&self, ev: LinuxDmabuf, _slf: &Rc<Self>) -> Result<(), Self::Error> {
+        if let Some(owner) = self.owner.get() {
+            owner.linux_dmabuf(&ev);
+        }
+        Ok(())
+    }
+
+    fn buffer_done(&self, _ev: BufferDone, _slf: &Rc<Self>) -> Result<(), Self::Error> {
+        if let Some(owner) = self.owner.get() {
+            owner.buffer_done();
+        }
+        Ok(())
+    }
+}
+
+usr_object_base! {
+    self = UsrZwlrScreencopyFrame = ZwlrScreencopyFrameV1;
+    version = self.version;
+}
+
+impl UsrObject for UsrZwlrScreencopyFrame {
+    fn destroy(&self) {
+        self.con.request(Destroy { self_id: self.id });
+    }
+
+    fn break_loops(&self) {
+        self.owner.take();
+    }
+}