Initial support for workspace pinning and moving

Adds support for cosmic-workspace-v2 pin, unpin, move_after, and
move_before requests.

Both features need some work with workspaces span displays mode, so that
will need more fixes later.

We also want to generate a unique id for pinned workspaces to send in
the ext-workspace-v1 protocol. But that isn't a strict requirement for
anything. So I haven't yet fully implemented that. We'll also want to
persist other things, like workspace naming when that's added.

Overall, though, with separate workspaces per display, this is working
pretty well.

cosmic-comp-config/src/lib.rs

@@ -5,6 +5,7 @@ use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
 
 pub mod input;
+pub mod output;
 pub mod workspace;
 
 #[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize)]
@@ -25,6 +26,7 @@ pub enum NumlockState {
 #[version = 1]
 pub struct CosmicCompConfig {
     pub workspaces: workspace::WorkspaceConfig,
+    pub pinned_workspaces: Vec<workspace::PinnedWorkspace>,
     pub input_default: input::InputConfig,
     pub input_touchpad: input::InputConfig,
     pub input_devices: HashMap<String, input::InputConfig>,
@@ -57,6 +59,7 @@ impl Default for CosmicCompConfig {
     fn default() -> Self {
         Self {
             workspaces: Default::default(),
+            pinned_workspaces: Vec::new(),
             input_default: Default::default(),
             // By default, enable tap-to-click and disable-while-typing.
             input_touchpad: input::InputConfig {

cosmic-comp-config/src/output.rs

@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-3.0-only
+
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Deserialize, Serialize, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub struct EdidProduct {
+    pub manufacturer: [char; 3],
+    pub product: u16,
+    pub serial: Option<u32>,
+    pub manufacture_week: i32,
+    pub manufacture_year: i32,
+    pub model_year: Option<i32>,
+}
+
+#[cfg(feature = "libdisplay-info")]
+impl From<libdisplay_info::edid::VendorProduct> for EdidProduct {
+    fn from(vp: libdisplay_info::edid::VendorProduct) -> Self {
+        Self {
+            manufacturer: vp.manufacturer,
+            product: vp.product,
+            serial: vp.serial,
+            manufacture_week: vp.manufacture_week,
+            manufacture_year: vp.manufacture_year,
+            model_year: vp.model_year,
+        }
+    }
+}

cosmic-comp-config/src/workspace.rs

@@ -2,6 +2,8 @@
 
 use serde::{Deserialize, Serialize};
 
+use crate::output::EdidProduct;
+
 #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
 pub struct WorkspaceConfig {
     pub workspace_mode: WorkspaceMode,
@@ -30,3 +32,16 @@ pub enum WorkspaceLayout {
     Vertical,
     Horizontal,
 }
+
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+pub struct OutputMatch {
+    pub name: String,
+    pub edid: Option<EdidProduct>,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+pub struct PinnedWorkspace {
+    pub output: OutputMatch,
+    pub tiling_enabled: bool,
+    // TODO: name, id
+}