river: update for wlroots 0.13.0

10 files changed, 103 insertions, 58 deletions

diff --git a/README.md b/README.md
index 0121c6d..2b60008 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@ installed:
 - [zig](https://ziglang.org/download/) 0.7.1
 - wayland
 - wayland-protocols
-- [wlroots](https://github.com/swaywm/wlroots) 0.12.0
+- [wlroots](https://github.com/swaywm/wlroots) 0.13.0
 - xkbcommon
 - libevdev
 - pixman
diff --git a/deps/zig-wlroots b/deps/zig-wlroots
-Subproject 35e5676b1a77b2a44f370280b78b0d38598d97e
+Subproject 6c62568adfe92a1852566b7d091e99f4b28cbab
diff --git a/protocol/wlr-layer-shell-unstable-v1.xml b/protocol/wlr-layer-shell-unstable-v1.xml
index fa67001..d62fd51 100644
--- a/protocol/wlr-layer-shell-unstable-v1.xml
+++ b/protocol/wlr-layer-shell-unstable-v1.xml
@@ -25,7 +25,7 @@
     THIS SOFTWARE.
   </copyright>
 
-  <interface name="zwlr_layer_shell_v1" version="3">
+  <interface name="zwlr_layer_shell_v1" version="4">
     <description summary="create surfaces that are layers of the desktop">
       Clients can use this interface to assign the surface_layer role to
       wl_surfaces. Such surfaces are assigned to a "layer" of the output and
@@ -47,6 +47,12 @@
         or manipulate a buffer prior to the first layer_surface.configure call
         must also be treated as errors.
 
+        After creating a layer_surface object and setting it up, the client
+        must perform an initial commit without any buffer attached.
+        The compositor will reply with a layer_surface.configure event.
+        The client must acknowledge it and is then allowed to attach a buffer
+        to map the surface.
+
         You may pass NULL for output to allow the compositor to decide which
         output to use. Generally this will be the one that the user most
         recently interacted with.
@@ -94,7 +100,7 @@
     </request>
   </interface>
 
-  <interface name="zwlr_layer_surface_v1" version="3">
+  <interface name="zwlr_layer_surface_v1" version="4">
     <description summary="layer metadata interface">
       An interface that may be implemented by a wl_surface, for surfaces that
       are designed to be rendered as a layer of a stacked desktop-like
@@ -103,6 +109,14 @@
       Layer surface state (layer, size, anchor, exclusive zone,
       margin, interactivity) is double-buffered, and will be applied at the
       time wl_surface.commit of the corresponding wl_surface is called.
+
+      Attaching a null buffer to a layer surface unmaps it.
+
+      Unmapping a layer_surface means that the surface cannot be shown by the
+      compositor until it is explicitly mapped again. The layer_surface
+      returns to the state it had right after layer_shell.get_layer_surface.
+      The client can re-map the surface by performing a commit without any
+      buffer attached, waiting for a configure event and handling it as usual.
     </description>
 
     <request name="set_size">
@@ -189,21 +203,85 @@
       <arg name="left" type="int"/>
     </request>
 
+    <enum name="keyboard_interactivity">
+      <description summary="types of keyboard interaction possible for a layer shell surface">
+        Types of keyboard interaction possible for layer shell surfaces. The
+        rationale for this is twofold: (1) some applications are not interested
+        in keyboard events and not allowing them to be focused can improve the
+        desktop experience; (2) some applications will want to take exclusive
+        keyboard focus.
+      </description>
+
+      <entry name="none" value="0">
+        <description summary="no keyboard focus is possible">
+          This value indicates that this surface is not interested in keyboard
+          events and the compositor should never assign it the keyboard focus.
+
+          This is the default value, set for newly created layer shell surfaces.
+
+          This is useful for e.g. desktop widgets that display information or
+          only have interaction with non-keyboard input devices.
+        </description>
+      </entry>
+      <entry name="exclusive" value="1">
+        <description summary="request exclusive keyboard focus">
+          Request exclusive keyboard focus if this surface is above the shell surface layer.
+
+          For the top and overlay layers, the seat will always give
+          exclusive keyboard focus to the top-most layer which has keyboard
+          interactivity set to exclusive. If this layer contains multiple
+          surfaces with keyboard interactivity set to exclusive, the compositor
+          determines the one receiving keyboard events in an implementation-
+          defined manner. In this case, no guarantee is made when this surface
+          will receive keyboard focus (if ever).
+
+          For the bottom and background layers, the compositor is allowed to use
+          normal focus semantics.
+
+          This setting is mainly intended for applications that need to ensure
+          they receive all keyboard events, such as a lock screen or a password
+          prompt.
+        </description>
+      </entry>
+      <entry name="on_demand" value="2" since="4">
+        <description summary="request regular keyboard focus semantics">
+          This requests the compositor to allow this surface to be focused and
+          unfocused by the user in an implementation-defined manner. The user
+          should be able to unfocus this surface even regardless of the layer
+          it is on.
+
+          Typically, the compositor will want to use its normal mechanism to
+          manage keyboard focus between layer shell surfaces with this setting
+          and regular toplevels on the desktop layer (e.g. click to focus).
+          Nevertheless, it is possible for a compositor to require a special
+          interaction to focus or unfocus layer shell surfaces (e.g. requiring
+          a click even if focus follows the mouse normally, or providing a
+          keybinding to switch focus between layers).
+
+          This setting is mainly intended for desktop shell components (e.g.
+          panels) that allow keyboard interaction. Using this option can allow
+          implementing a desktop shell that can be fully usable without the
+          mouse.
+        </description>
+      </entry>
+    </enum>
+
     <request name="set_keyboard_interactivity">
       <description summary="requests keyboard events">
-        Set to 1 to request that the seat send keyboard events to this layer
-        surface. For layers below the shell surface layer, the seat will use
-        normal focus semantics. For layers above the shell surface layers, the
-        seat will always give exclusive keyboard focus to the top-most layer
-        which has keyboard interactivity set to true.
+        Set how keyboard events are delivered to this surface. By default,
+        layer shell surfaces do not receive keyboard events; this request can
+        be used to change this.
+
+        This setting is inherited by child surfaces set by the get_popup
+        request.
 
         Layer surfaces receive pointer, touch, and tablet events normally. If
         you do not want to receive them, set the input region on your surface
         to an empty region.
 
-        Events is double-buffered, see wl_surface.commit.
+        Keyboard interactivity is double-buffered, see wl_surface.commit.
       </description>
-      <arg name="keyboard_interactivity" type="uint"/>
+      <arg name="keyboard_interactivity" type="uint" enum="keyboard_interactivity"/>
     </request>
 
     <request name="get_popup">
@@ -288,6 +366,7 @@
       <entry name="invalid_surface_state" value="0" summary="provided surface state is invalid"/>
       <entry name="invalid_size" value="1" summary="size is invalid"/>
       <entry name="invalid_anchor" value="2" summary="anchor bitfield is invalid"/>
+      <entry name="invalid_keyboard_interactivity" value="3" summary="keyboard interactivity is invalid"/>
     </enum>
 
     <enum name="anchor" bitfield="true">
diff --git a/river/Cursor.zig b/river/Cursor.zig
index d759dc7..081da03 100644
--- a/river/Cursor.zig
+++ b/river/Cursor.zig
@@ -239,7 +239,7 @@ fn handleButton(listener: *wl.Listener(*wlr.Pointer.event.Button), event: *wlr.P
         // give it keyboard focus.
         if (surface.isLayerSurface()) {
             const wlr_layer_surface = wlr.LayerSurfaceV1.fromWlrSurface(surface);
-            if (wlr_layer_surface.current.keyboard_interactive) {
+            if (wlr_layer_surface.current.keyboard_interactive == .exclusive) {
                 const layer_surface = @intToPtr(*LayerSurface, wlr_layer_surface.data);
                 self.seat.focusOutput(layer_surface.output);
                 self.seat.setFocusRaw(.{ .layer = layer_surface });
diff --git a/river/Output.zig b/river/Output.zig
index 3de9631..166b3c0 100644
--- a/river/Output.zig
+++ b/river/Output.zig
@@ -348,7 +348,7 @@ pub fn arrangeLayers(self: *Self) void {
         var it = self.getLayer(layer).last;
         while (it) |node| : (it = node.prev) {
             const layer_surface = &node.data;
-            if (layer_surface.wlr_layer_surface.current.keyboard_interactive) {
+            if (layer_surface.wlr_layer_surface.current.keyboard_interactive == .exclusive) {
                 break :outer layer_surface;
             }
         }
@@ -368,7 +368,7 @@ pub fn arrangeLayers(self: *Self) void {
         } else if (seat.focused == .layer) {
             // If the seat is currently focusing a layer without keyboard
             // interactivity, stop focusing that layer.
-            if (!seat.focused.layer.wlr_layer_surface.current.keyboard_interactive) {
+            if (seat.focused.layer.wlr_layer_surface.current.keyboard_interactive != .exclusive) {
                 seat.setFocusRaw(.{ .none = {} });
                 seat.focus(null);
             }
diff --git a/river/Root.zig b/river/Root.zig
index 4c70a58..e05495f 100644
--- a/river/Root.zig
+++ b/river/Root.zig
@@ -517,14 +517,10 @@ fn applyHeadToOutput(head: *wlr.OutputConfigurationV1.Head, wlr_output: *wlr.Out
         if (head.state.mode) |mode| {
             wlr_output.setMode(mode);
         } else {
-            std.log.scoped(.output_manager).info("custom modes are not supported until the next wlroots release: ignoring", .{});
-            // TODO(wlroots) uncomment the following lines when wlroots 0.13.0 is released
-            // See https://github.com/swaywm/wlroots/pull/2517
-            //const custom_mode = &head.state.custom_mode;
-            //wlr_output.setCustomMode(custom_mode.width, custom_mode.height, custom_mode.refresh);
+            const custom_mode = &head.state.custom_mode;
+            wlr_output.setCustomMode(custom_mode.width, custom_mode.height, custom_mode.refresh);
         }
-        // TODO(wlroots) Figure out if this conversion is needed or if that is a bug in wlroots
-        wlr_output.setScale(@floatCast(f32, head.state.scale));
+        wlr_output.setScale(head.state.scale);
         wlr_output.setTransform(head.state.transform);
     }
 }
diff --git a/river/Server.zig b/river/Server.zig
index 5a6377e..5cc612b 100644
--- a/river/Server.zig
+++ b/river/Server.zig
@@ -78,7 +78,7 @@ pub fn init(self: *Self) !void {
     errdefer self.sigterm_source.remove();
 
     // This frees itself when the wl.Server is destroyed
-    self.backend = try wlr.Backend.autocreate(self.wl_server, null);
+    self.backend = try wlr.Backend.autocreate(self.wl_server);
 
     // This backend is used to create a noop output for use when no actual
     // outputs are available. This frees itself when the wl.Server is destroyed.
@@ -140,7 +140,6 @@ pub fn deinit(self: *Self) void {
 
     self.root.deinit();
 
-    self.noop_backend.destroy();
     self.wl_server.destroy();
 
     self.input_manager.deinit();
diff --git a/river/View.zig b/river/View.zig
index 82b0b40..91f7e1d 100644
--- a/river/View.zig
+++ b/river/View.zig
@@ -333,14 +333,14 @@ pub fn close(self: Self) void {
     }
 }
 
-pub inline fn forEachPopup(
+pub inline fn forEachPopupSurface(
     self: Self,
     comptime T: type,
     iterator: fn (surface: *wlr.Surface, sx: c_int, sy: c_int, data: T) callconv(.C) void,
     user_data: T,
 ) void {
     switch (self.impl) {
-        .xdg_toplevel => |xdg_toplevel| xdg_toplevel.forEachPopup(T, iterator, user_data),
+        .xdg_toplevel => |xdg_toplevel| xdg_toplevel.forEachPopupSurface(T, iterator, user_data),
         .xwayland_view => {},
     }
 }
diff --git a/river/XdgToplevel.zig b/river/XdgToplevel.zig
index f4385e7..11389a8 100644
--- a/river/XdgToplevel.zig
+++ b/river/XdgToplevel.zig
@@ -104,13 +104,13 @@ pub fn close(self: Self) void {
     self.xdg_surface.role_data.toplevel.sendClose();
 }
 
-pub inline fn forEachPopup(
+pub inline fn forEachPopupSurface(
     self: Self,
     comptime T: type,
     iterator: fn (surface: *wlr.Surface, sx: c_int, sy: c_int, data: T) callconv(.C) void,
     user_data: T,
 ) void {
-    self.xdg_surface.forEachPopup(T, iterator, user_data);
+    self.xdg_surface.forEachPopupSurface(T, iterator, user_data);
 }
 
 /// Return the surface at output coordinates ox, oy and set sx, sy to the
diff --git a/river/render.zig b/river/render.zig
index 1878c6b..578a685 100644
--- a/river/render.zig
+++ b/river/render.zig
@@ -54,7 +54,7 @@ pub fn renderOutput(output: *Output) void {
 
     output.wlr_output.attachRender(null) catch return;
 
-    renderer.begin(output.wlr_output.width, output.wlr_output.height);
+    renderer.begin(@intCast(u32, output.wlr_output.width), @intCast(u32, output.wlr_output.height));
 
     // Find the first visible fullscreen view in the stack if there is one
     var it = ViewStack(View).iter(output.views.first, .forward, output.current.tags, renderFilter);
@@ -130,18 +130,6 @@ pub fn renderOutput(output: *Output) void {
     // on-screen.
     renderer.end();
 
-    // TODO(wlroots): remove this with the next release. It is here due to
-    // a wlroots bug in the screencopy damage implementation
-    {
-        var w: c_int = undefined;
-        var h: c_int = undefined;
-        output.wlr_output.transformedResolution(&w, &h);
-        var damage: pixman.Region32 = undefined;
-        damage.init();
-        _ = damage.unionRect(&damage, 0, 0, @intCast(c_uint, w), @intCast(c_uint, h));
-        output.wlr_output.setDamage(&damage);
-    }
-
     // TODO: handle failure
     output.wlr_output.commit() catch
         log.err("output commit failed for {}", .{output.wlr_output.name});
@@ -178,7 +166,7 @@ fn renderLayer(
                 renderSurfaceIterator,
                 &rdata,
             ),
-            .popups => layer_surface.wlr_layer_surface.forEachPopup(
+            .popups => layer_surface.wlr_layer_surface.forEachPopupSurface(
                 *SurfaceRenderData,
                 renderSurfaceIterator,
                 &rdata,
@@ -227,24 +215,7 @@ fn renderViewPopups(output: *const Output, view: *View, now: *os.timespec) void
         .when = now,
         .opacity = view.opacity,
     };
-    view.forEachPopup(*SurfaceRenderData, renderPopupSurfaceIterator, &rdata);
-}
-
-// TODO(wlroots): replace with wlr_xdg_surface_for_each_popup_surface()
-fn renderPopupSurfaceIterator(
-    surface: *wlr.Surface,
-    surface_x: c_int,
-    surface_y: c_int,
-    rdata: *SurfaceRenderData,
-) callconv(.C) void {
-    var new_rdata = SurfaceRenderData{
-        .output = rdata.output,
-        .output_x = rdata.output_x + surface_x,
-        .output_y = rdata.output_y + surface_y,
-        .when = rdata.when,
-        .opacity = rdata.opacity,
-    };
-    surface.forEachSurface(*SurfaceRenderData, renderSurfaceIterator, &new_rdata);
+    view.forEachPopupSurface(*SurfaceRenderData, renderSurfaceIterator, &rdata);
 }
 
 fn renderDragIcons(output: *const Output, now: *os.timespec) void {