shell/floating: Add interactive move grab

src/backend/render/mod.rs

@@ -6,9 +6,12 @@ use crate::{
     state::Fps,
     utils::prelude::*,
 };
-//grabs::{MoveGrabRenderElement, SeatMoveGrabState},
 use crate::{
-    shell::WorkspaceRenderElement, state::Common, wayland::handlers::data_device::get_dnd_icon,
+    shell::{
+        layout::floating::SeatMoveGrabState, CosmicMappedRenderElement, WorkspaceRenderElement,
+    },
+    state::Common,
+    wayland::handlers::data_device::get_dnd_icon,
 };
 
 use smithay::{
@@ -45,7 +48,7 @@ smithay::render_elements! {
     pub CosmicElement<R> where R: ImportAll;
     WorkspaceElement=WorkspaceRenderElement<R>,
     CursorElement=CursorRenderElement<R>,
-    //MoveGrabRenderElement=MoveGrabRenderElement,
+    MoveGrabRenderElement=CosmicMappedRenderElement<R>,
     //#[cfg(feature = "debug")]
     //EguiFrame=EguiFrame,
 }
@@ -59,7 +62,7 @@ pub fn cursor_elements<E, R>(
 where
     R: Renderer + ImportAll + ImportMem,
     <R as Renderer>::TextureId: Clone + 'static,
-    E: From<CursorRenderElement<R>>,
+    E: From<CursorRenderElement<R>> + From<CosmicMappedRenderElement<R>>,
 {
     let scale = output.current_scale().fractional_scale();
     let mut elements = Vec::new();
@@ -73,27 +76,6 @@ where
             .shell
             .map_global_to_space(pointer.current_location().to_i32_round(), output);
 
-        /*
-        if let Some(grab) = seat
-            .user_data()
-            .get::<SeatMoveGrabState>()
-            .unwrap()
-            .borrow()
-            .as_ref()
-            .and_then(|state| state.render(seat, output))
-        {
-            custom_elements.push(grab);
-        }
-        */
-
-        if let Some(wl_surface) = get_dnd_icon(seat) {
-            elements.extend(
-                cursor::draw_dnd_icon(&wl_surface, location.to_i32_round(), scale)
-                    .into_iter()
-                    .map(E::from),
-            );
-        }
-
         elements.extend(
             cursor::draw_cursor(
                 renderer,
@@ -106,6 +88,25 @@ where
             .into_iter()
             .map(E::from),
         );
+
+        if let Some(wl_surface) = get_dnd_icon(seat) {
+            elements.extend(
+                cursor::draw_dnd_icon(&wl_surface, location.to_i32_round(), scale)
+                    .into_iter()
+                    .map(E::from),
+            );
+        }
+
+        if let Some(grab_elements) = seat
+            .user_data()
+            .get::<SeatMoveGrabState>()
+            .unwrap()
+            .borrow()
+            .as_ref()
+            .map(|state| state.render::<E, R>(seat, output))
+        {
+            elements.extend(grab_elements);
+        }
     }
 
     elements

src/input/mod.rs

@@ -2,7 +2,7 @@
 
 use crate::{
     config::{Action, Config},
-    shell::{focus::target::PointerFocusTarget, Workspace}, // shell::grabs::SeatMoveGrabState
+    shell::{focus::target::PointerFocusTarget, layout::floating::SeatMoveGrabState, Workspace}, // shell::grabs::SeatMoveGrabState
     state::Common,
     utils::prelude::*,
 };
@@ -112,7 +112,7 @@ pub fn add_seat(
     userdata.insert_if_missing(SeatId::default);
     userdata.insert_if_missing(Devices::default);
     userdata.insert_if_missing(SupressedKeys::default);
-    //userdata.insert_if_missing(SeatMoveGrabState::default);
+    userdata.insert_if_missing(SeatMoveGrabState::default);
     userdata.insert_if_missing(|| ActiveOutput(RefCell::new(output.clone())));
     userdata.insert_if_missing(|| RefCell::new(CursorImageStatus::Default));
 

src/shell/grabs.rs

@@ -1,368 +0,0 @@
-// SPDX-License-Identifier: GPL-3.0-only
-
-use super::Shell;
-use crate::utils::prelude::*;
-
-use cosmic_protocols::workspace::v1::server::zcosmic_workspace_handle_v1::State as WState;
-use smithay::{
-    backend::renderer::{ImportAll, Renderer},
-    desktop::{
-        draw_window,
-        space::{RenderElement, SpaceOutputTuple},
-        Kind, Window,
-    },
-    input::{
-        pointer::{
-            AxisFrame, ButtonEvent, Focus, GrabStartData as PointerGrabStartData, MotionEvent,
-            PointerGrab, PointerInnerHandle,
-        },
-        Seat,
-    },
-    output::Output,
-    reexports::{
-        wayland_protocols::xdg::shell::server::xdg_toplevel::State as XdgState,
-        wayland_server::protocol::wl_surface::WlSurface,
-    },
-    utils::{IsAlive, Logical, Physical, Point, Rectangle, Scale, Serial},
-};
-use std::cell::RefCell;
-
-impl Shell {
-    pub fn move_request(
-        state: &mut State,
-        window: &Window,
-        seat: &Seat<State>,
-        serial: Serial,
-        start_data: PointerGrabStartData<State>,
-    ) {
-        // TODO touch grab
-        if let Some(pointer) = seat.get_pointer() {
-            let workspace = state
-                .common
-                .shell
-                .space_for_window_mut(window.toplevel().wl_surface())
-                .unwrap();
-            if workspace.fullscreen.values().any(|w| w == window) {
-                return;
-            }
-
-            let pos = pointer.current_location();
-            let output = match workspace
-                .space
-                .outputs_for_window(&window)
-                .into_iter()
-                .find(|o| o.geometry().contains(pos.to_i32_round()))
-            {
-                Some(o) => o,
-                None => return,
-            };
-            let mut initial_window_location = workspace.space.window_location(&window).unwrap();
-
-            match &window.toplevel() {
-                Kind::Xdg(surface) => {
-                    // If surface is maximized then unmaximize it
-                    let current_state = surface.current_state();
-                    if current_state.states.contains(XdgState::Maximized) {
-                        workspace
-                            .floating_layer
-                            .unmaximize_request(&mut workspace.space, window);
-                        let new_size = surface.with_pending_state(|state| state.size);
-                        let ratio = pos.x / output.geometry().size.w as f64;
-
-                        initial_window_location = new_size
-                            .map(|size| (pos.x - (size.w as f64 * ratio), pos.y).into())
-                            .unwrap_or_else(|| pos)
-                            .to_i32_round();
-                    }
-                }
-            };
-
-            let was_tiled = if workspace.tiling_layer.windows.contains(&window) {
-                workspace
-                    .tiling_layer
-                    .unmap_window(&mut workspace.space, &window);
-                true
-            } else {
-                workspace
-                    .floating_layer
-                    .unmap_window(&mut workspace.space, &window);
-                false
-            };
-
-            let workspace_handle = workspace.handle;
-            let workspace_is_empty = workspace.space.windows().next().is_none();
-
-            if workspace_is_empty {
-                state
-                    .common
-                    .shell
-                    .workspace_state
-                    .update()
-                    .add_workspace_state(&workspace_handle, WState::Hidden);
-            }
-            state
-                .common
-                .shell
-                .toplevel_info_state
-                .toplevel_leave_workspace(&window, &workspace_handle);
-            state
-                .common
-                .shell
-                .toplevel_info_state
-                .toplevel_leave_output(&window, &output);
-
-            let grab_state = MoveGrabState {
-                window: window.clone(),
-                was_tiled,
-                initial_cursor_location: pointer.current_location(),
-                initial_window_location,
-                initial_output_location: output.geometry().loc,
-            };
-            let grab = MoveSurfaceGrab::new(start_data, window.clone(), seat);
-
-            *seat
-                .user_data()
-                .get::<SeatMoveGrabState>()
-                .unwrap()
-                .borrow_mut() = Some(grab_state);
-            pointer.set_grab(state, grab, serial, Focus::Clear);
-        }
-    }
-
-    fn drop_move(state: &mut State, seat: &Seat<State>, output: &Output) {
-        if let Some(move_state) = seat
-            .user_data()
-            .get::<SeatMoveGrabState>()
-            .unwrap()
-            .borrow_mut()
-            .take()
-        {
-            let pointer = seat.get_pointer().unwrap();
-            let window = move_state.window;
-
-            if window.alive() {
-                let delta = pointer.current_location() - move_state.initial_cursor_location;
-                let window_location = (move_state.initial_window_location.to_f64()
-                    + move_state.initial_output_location.to_f64()
-                    - output.geometry().loc.to_f64()
-                    + delta)
-                    .to_i32_round();
-                let surface = window.toplevel().wl_surface().clone();
-
-                let workspace_handle = state.common.shell.active_space(output).handle;
-                state
-                    .common
-                    .shell
-                    .workspace_state
-                    .update()
-                    .remove_workspace_state(&workspace_handle, WState::Hidden);
-                state
-                    .common
-                    .shell
-                    .toplevel_info_state
-                    .toplevel_enter_workspace(&window, &workspace_handle);
-                state
-                    .common
-                    .shell
-                    .toplevel_info_state
-                    .toplevel_enter_output(&window, &output);
-
-                let workspace = state.common.shell.active_space_mut(output);
-                if move_state.was_tiled {
-                    let focus_stack = workspace.focus_stack(&seat);
-                    workspace.tiling_layer.map_window(
-                        &mut workspace.space,
-                        window,
-                        &seat,
-                        focus_stack.iter(),
-                    );
-                } else {
-                    workspace.floating_layer.map_window(
-                        &mut workspace.space,
-                        window,
-                        &seat,
-                        window_location,
-                    );
-                }
-
-                Shell::set_focus(state, Some(&surface), &seat, None);
-
-                for window in state.common.shell.active_space(output).space.windows() {
-                    state.common.shell.update_reactive_popups(window);
-                }
-            }
-        }
-    }
-}
-
-pub type SeatMoveGrabState = RefCell<Option<MoveGrabState>>;
-
-pub struct MoveGrabState {
-    window: Window,
-    was_tiled: bool,
-    initial_cursor_location: Point<f64, Logical>,
-    initial_window_location: Point<i32, Logical>,
-    initial_output_location: Point<i32, Logical>,
-}
-
-pub struct MoveGrabRenderElement {
-    seat_id: usize,
-    window: Window,
-    window_location: Point<f64, Logical>,
-}
-
-impl<R> RenderElement<R> for MoveGrabRenderElement
-where
-    R: Renderer + ImportAll,
-    <R as Renderer>::TextureId: 'static,
-{
-    fn id(&self) -> usize {
-        self.seat_id
-    }
-
-    fn location(&self, scale: impl Into<Scale<f64>>) -> Point<f64, Physical> {
-        (self.window_location - self.window.geometry().loc.to_f64()).to_physical(scale)
-    }
-
-    fn geometry(&self, scale: impl Into<Scale<f64>>) -> Rectangle<i32, Physical> {
-        let scale = scale.into();
-        self.window
-            .physical_bbox_with_popups(RenderElement::<R>::location(self, scale), scale)
-    }
-
-    fn accumulated_damage(
-        &self,
-        scale: impl Into<Scale<f64>>,
-        for_values: Option<SpaceOutputTuple<'_, '_>>,
-    ) -> Vec<Rectangle<i32, Physical>> {
-        let scale = scale.into();
-        self.window.accumulated_damage(
-            RenderElement::<R>::location(self, scale),
-            scale,
-            for_values.map(|t| (t.0, t.1)),
-        )
-    }
-
-    fn opaque_regions(
-        &self,
-        scale: impl Into<Scale<f64>>,
-    ) -> Option<Vec<Rectangle<i32, Physical>>> {
-        let scale = scale.into();
-        self.window
-            .opaque_regions(RenderElement::<R>::location(self, scale), scale)
-    }
-
-    fn draw(
-        &self,
-        renderer: &mut R,
-        frame: &mut <R as Renderer>::Frame,
-        scale: impl Into<Scale<f64>>,
-        position: Point<f64, Physical>,
-        damage: &[Rectangle<i32, Physical>],
-        log: &slog::Logger,
-    ) -> Result<(), <R as Renderer>::Error> {
-        draw_window(renderer, frame, &self.window, scale, position, damage, log)
-    }
-}
-
-impl MoveGrabState {
-    pub fn render<I>(&self, seat: &Seat<State>, output: &Output) -> Option<I>
-    where
-        I: From<MoveGrabRenderElement>,
-    {
-        let cursor_at = seat.get_pointer().unwrap().current_location();
-        let delta = cursor_at - self.initial_cursor_location;
-        let location =
-            self.initial_output_location.to_f64() + self.initial_window_location.to_f64() + delta;
-
-        let mut window_geo = self.window.bbox();
-        window_geo.loc += location.to_i32_round();
-        if !output.geometry().intersection(window_geo).is_some() {
-            return None;
-        }
-
-        Some(I::from(MoveGrabRenderElement {
-            seat_id: seat.id(),
-            window: self.window.clone(),
-            window_location: location - output.geometry().loc.to_f64(),
-        }))
-    }
-}
-
-pub struct MoveSurfaceGrab {
-    window: Window,
-    start_data: PointerGrabStartData<State>,
-    seat: Seat<State>,
-}
-
-impl PointerGrab<State> for MoveSurfaceGrab {
-    fn motion(
-        &mut self,
-        state: &mut State,
-        handle: &mut PointerInnerHandle<'_, State>,
-        _focus: Option<(WlSurface, Point<i32, Logical>)>,
-        event: &MotionEvent,
-    ) {
-        // While the grab is active, no client has pointer focus
-        handle.motion(state, None, event);
-        if !self.window.alive() {
-            self.ungrab(state, handle, event.serial, event.time);
-        }
-    }
-
-    fn button(
-        &mut self,
-        state: &mut State,
-        handle: &mut PointerInnerHandle<'_, State>,
-        event: &ButtonEvent,
-    ) {
-        handle.button(state, event);
-        if handle.current_pressed().is_empty() {
-            self.ungrab(state, handle, event.serial, event.time);
-        }
-    }
-
-    fn axis(
-        &mut self,
-        state: &mut State,
-        handle: &mut PointerInnerHandle<'_, State>,
-        details: AxisFrame,
-    ) {
-        handle.axis(state, details);
-    }
-
-    fn start_data(&self) -> &PointerGrabStartData<State> {
-        &self.start_data
-    }
-}
-
-impl MoveSurfaceGrab {
-    pub fn new(
-        start_data: PointerGrabStartData<State>,
-        window: Window,
-        seat: &Seat<State>,
-    ) -> MoveSurfaceGrab {
-        MoveSurfaceGrab {
-            window,
-            start_data,
-            seat: seat.clone(),
-        }
-    }
-
-    fn ungrab(
-        &mut self,
-        state: &mut State,
-        handle: &mut PointerInnerHandle<'_, State>,
-        serial: Serial,
-        time: u32,
-    ) {
-        // No more buttons are pressed, release the grab.
-        let output = self.seat.active_output();
-        let seat = self.seat.clone();
-
-        state.common.event_loop_handle.insert_idle(move |data| {
-            Shell::drop_move(&mut data.state, &seat, &output);
-        });
-        handle.unset_grab(state, serial, time);
-    }
-}

src/shell/layout/floating/grabs/mod.rs

@@ -0,0 +1,5 @@
+mod moving;
+mod resize;
+
+pub use self::moving::*;
+pub use self::resize::*;

src/shell/layout/floating/grabs/moving.rs

@@ -0,0 +1,195 @@
+// SPDX-License-Identifier: GPL-3.0-only
+
+use crate::{
+    shell::{
+        element::{CosmicMapped, CosmicMappedRenderElement},
+        focus::target::{KeyboardFocusTarget, PointerFocusTarget},
+    },
+    utils::prelude::*,
+};
+
+use smithay::{
+    backend::renderer::{element::AsRenderElements, ImportAll, Renderer},
+    desktop::space::SpaceElement,
+    input::{
+        pointer::{
+            AxisFrame, ButtonEvent, Focus, GrabStartData as PointerGrabStartData, MotionEvent,
+            PointerGrab, PointerInnerHandle,
+        },
+        Seat,
+    },
+    output::Output,
+    utils::{IsAlive, Logical, Physical, Point, Rectangle, Scale, Serial},
+};
+use std::cell::RefCell;
+
+pub type SeatMoveGrabState = RefCell<Option<MoveGrabState>>;
+
+pub struct MoveGrabState {
+    window: CosmicMapped,
+    initial_cursor_location: Point<f64, Logical>,
+    initial_window_location: Point<i32, Logical>,
+    initial_output_location: Point<i32, Logical>,
+}
+
+impl MoveGrabState {
+    pub fn render<I, R>(&self, seat: &Seat<State>, output: &Output) -> Vec<I>
+    where
+        R: Renderer + ImportAll,
+        <R as Renderer>::TextureId: 'static,
+        I: From<CosmicMappedRenderElement<R>>,
+    {
+        let cursor_at = seat.get_pointer().unwrap().current_location();
+        let delta = cursor_at - self.initial_cursor_location;
+        let location =
+            self.initial_output_location.to_f64() + self.initial_window_location.to_f64() + delta;
+
+        let mut window_geo = self.window.geometry();
+        window_geo.loc += location.to_i32_round();
+        if !output.geometry().intersection(window_geo).is_some() {
+            return Vec::new();
+        }
+
+        let scale = output.current_scale().fractional_scale().into();
+        self.window.render_elements::<I>(
+            (location.to_i32_round() - output.geometry().loc - self.window.geometry().loc)
+                .to_physical_precise_round(scale),
+            scale,
+        )
+    }
+}
+
+pub struct MoveSurfaceGrab {
+    window: CosmicMapped,
+    start_data: PointerGrabStartData<State>,
+    seat: Seat<State>,
+}
+
+impl PointerGrab<State> for MoveSurfaceGrab {
+    fn motion(
+        &mut self,
+        state: &mut State,
+        handle: &mut PointerInnerHandle<'_, State>,
+        _focus: Option<(PointerFocusTarget, Point<i32, Logical>)>,
+        event: &MotionEvent,
+    ) {
+        // While the grab is active, no client has pointer focus
+        handle.motion(state, None, event);
+        if !self.window.alive() {
+            self.ungrab(state, handle, event.serial, event.time);
+        }
+    }
+
+    fn button(
+        &mut self,
+        state: &mut State,
+        handle: &mut PointerInnerHandle<'_, State>,
+        event: &ButtonEvent,
+    ) {
+        handle.button(state, event);
+        if handle.current_pressed().is_empty() {
+            self.ungrab(state, handle, event.serial, event.time);
+        }
+    }
+
+    fn axis(
+        &mut self,
+        state: &mut State,
+        handle: &mut PointerInnerHandle<'_, State>,
+        details: AxisFrame,
+    ) {
+        handle.axis(state, details);
+    }
+
+    fn start_data(&self) -> &PointerGrabStartData<State> {
+        &self.start_data
+    }
+}
+
+impl MoveSurfaceGrab {
+    pub fn new(
+        start_data: PointerGrabStartData<State>,
+        window: CosmicMapped,
+        seat: &Seat<State>,
+        initial_cursor_location: Point<f64, Logical>,
+        initial_window_location: Point<i32, Logical>,
+        initial_output_location: Point<i32, Logical>,
+    ) -> MoveSurfaceGrab {
+        let grab_state = MoveGrabState {
+            window: window.clone(),
+            initial_cursor_location,
+            initial_window_location,
+            initial_output_location,
+        };
+
+        *seat
+            .user_data()
+            .get::<SeatMoveGrabState>()
+            .unwrap()
+            .borrow_mut() = Some(grab_state);
+
+        MoveSurfaceGrab {
+            window,
+            start_data,
+            seat: seat.clone(),
+        }
+    }
+
+    fn ungrab(
+        &mut self,
+        state: &mut State,
+        handle: &mut PointerInnerHandle<'_, State>,
+        serial: Serial,
+        time: u32,
+    ) {
+        // No more buttons are pressed, release the grab.
+        let output = self.seat.active_output();
+
+        if let Some(grab_state) = self
+            .seat
+            .user_data()
+            .get::<SeatMoveGrabState>()
+            .and_then(|s| s.borrow_mut().take())
+        {
+            if grab_state.window.alive() {
+                let delta = handle.current_location() - grab_state.initial_cursor_location;
+                let window_location = (grab_state.initial_window_location.to_f64()
+                    + grab_state.initial_output_location.to_f64()
+                    - output.geometry().loc.to_f64()
+                    + delta)
+                    .to_i32_round();
+
+                let workspace_handle = state.common.shell.active_space(&output).handle;
+                for (window, _) in grab_state.window.windows() {
+                    state
+                        .common
+                        .shell
+                        .toplevel_info_state
+                        .toplevel_enter_workspace(&window, &workspace_handle);
+                    state
+                        .common
+                        .shell
+                        .toplevel_info_state
+                        .toplevel_enter_output(&window, &output);
+                }
+
+                state
+                    .common
+                    .shell
+                    .active_space_mut(&output)
+                    .floating_layer
+                    .map_internal(grab_state.window, &output, Some(window_location));
+            }
+        }
+
+        handle.unset_grab(state, serial, time);
+        if self.window.alive() {
+            Common::set_focus(
+                state,
+                Some(&KeyboardFocusTarget::from(self.window.clone())),
+                &self.seat,
+                Some(serial),
+            )
+        }
+    }
+}

src/shell/mod.rs

@@ -1,5 +1,5 @@
 use serde::{Deserialize, Serialize};
-use std::{cell::Cell, collections::HashMap};
+use std::collections::HashMap;
 
 use cosmic_protocols::workspace::v1::server::zcosmic_workspace_handle_v1::State as WState;
 use smithay::{
@@ -7,7 +7,7 @@ use smithay::{
     input::{pointer::MotionEvent, Seat},
     output::Output,
     reexports::wayland_server::{protocol::wl_surface::WlSurface, DisplayHandle},
-    utils::{Logical, Point, Rectangle, SERIAL_COUNTER},
+    utils::{Logical, Point, Rectangle},
     wayland::{
         compositor::with_states,
         shell::{
@@ -34,9 +34,9 @@ use crate::{
 
 mod element;
 pub mod focus;
-//pub mod grabs;
 pub mod layout;
 mod workspace;
+pub use self::element::CosmicMappedRenderElement;
 pub use self::workspace::*;
 use self::{
     element::{CosmicMapped, CosmicWindow},

src/shell/workspace.rs

@@ -1,7 +1,10 @@
 use crate::{
     shell::{
         element::CosmicWindow,
-        layout::{floating::FloatingLayout, tiling::TilingLayout},
+        layout::{
+            floating::{FloatingLayout, MoveSurfaceGrab},
+            tiling::TilingLayout,
+        },
     },
     state::State,
     utils::prelude::*,
@@ -179,8 +182,8 @@ impl Workspace {
     }
     pub fn unmaximize_request(&mut self, window: &Window) {
         if self.fullscreen.values().any(|w| w == window) {
+            self.unfullscreen_request(window);
             self.floating_layer.unmaximize_request(window);
-            return self.unfullscreen_request(window);
         }
     }
 
@@ -278,6 +281,55 @@ impl Workspace {
         }
     }
 
+    pub fn move_request(
+        &mut self,
+        window: &Window,
+        seat: &Seat<State>,
+        output: &Output,
+        _serial: Serial,
+        start_data: PointerGrabStartData<State>,
+    ) -> Option<MoveSurfaceGrab> {
+        let pointer = seat.get_pointer().unwrap();
+        let pos = pointer.current_location();
+
+        let mapped = self
+            .element_for_surface(window.toplevel().wl_surface())?
+            .clone();
+        let mut initial_window_location = self.element_geometry(&mapped).unwrap().loc;
+
+        if mapped.is_fullscreen() || mapped.is_maximized() {
+            // If surface is maximized then unmaximize it
+            self.unmaximize_request(window);
+            let new_size = match window.toplevel() {
+                Kind::Xdg(toplevel) => toplevel.with_pending_state(|state| state.size),
+                //_ => unreachable!(), // TODO x11
+            };
+            let ratio = pos.x / output.geometry().size.w as f64;
+
+            initial_window_location = new_size
+                .map(|size| (pos.x - (size.w as f64 * ratio), pos.y).into())
+                .unwrap_or_else(|| pos)
+                .to_i32_round();
+        }
+
+        let was_floating = self.floating_layer.unmap(&mapped);
+        //let was_tiled = self.tiling_layer.unmap(&mapped);
+        //assert!(was_floating != was_tiled);
+
+        if was_floating {
+            Some(MoveSurfaceGrab::new(
+                start_data,
+                mapped,
+                seat,
+                pos,
+                initial_window_location,
+                output.geometry().loc,
+            ))
+        } else {
+            None // TODO
+        }
+    }
+
     pub fn toggle_tiling(&mut self, seat: &Seat<State>) {
         if self.tiling_enabled {
             for window in self

src/wayland/handlers/xdg_shell/mod.rs

@@ -154,8 +154,35 @@ impl XdgShellHandler for State {
     fn move_request(&mut self, surface: ToplevelSurface, seat: WlSeat, serial: Serial) {
         let seat = Seat::from_resource(&seat).unwrap();
         if let Some(start_data) = check_grab_preconditions(&seat, surface.wl_surface(), serial) {
-            if let Some(mapped) = self.common.shell.element_for_surface(surface.wl_surface()) {
-                // Shell::move_request(self, &window, &seat, serial, start_data);
+            if let Some(mapped) = self
+                .common
+                .shell
+                .element_for_surface(surface.wl_surface())
+                .cloned()
+            {
+                if let Some(workspace) = self.common.shell.space_for_mut(&mapped) {
+                    let output = seat.active_output();
+                    let (window, _) = mapped
+                        .windows()
+                        .find(|(w, _)| matches!(w.toplevel(), Kind::Xdg(s) if s == &surface))
+                        .unwrap();
+                    if let Some(grab) =
+                        workspace.move_request(&window, &seat, &output, serial, start_data)
+                    {
+                        let handle = workspace.handle;
+                        self.common
+                            .shell
+                            .toplevel_info_state
+                            .toplevel_leave_workspace(&window, &handle);
+                        self.common
+                            .shell
+                            .toplevel_info_state
+                            .toplevel_leave_output(&window, &output);
+                        seat.get_pointer()
+                            .unwrap()
+                            .set_grab(self, grab, serial, Focus::Clear);
+                    }
+                }
             }
         }
     }