feat(plugins): plugin pane state events (#2545)

* feat(plugins): report pane state to plugins

* refactor(plugins): rename some stuff

* tests(plugins): adjust for new behavior

* style(fmt): rustfmt

5 files changed, 68 insertions, 4 deletions

diff --git a/zellij-server/src/panes/active_panes.rs b/zellij-server/src/panes/active_panes.rs
index c726bafe1..039c71c61 100644
--- a/zellij-server/src/panes/active_panes.rs
+++ b/zellij-server/src/panes/active_panes.rs
@@ -98,4 +98,10 @@ impl ActivePanes {
             }
         }
     }
+    pub fn pane_id_is_focused(&self, pane_id: &PaneId) -> bool {
+        self.active_panes
+            .values()
+            .find(|p_id| **p_id == *pane_id)
+            .is_some()
+    }
 }
diff --git a/zellij-server/src/panes/floating_panes/mod.rs b/zellij-server/src/panes/floating_panes/mod.rs
index 071f6e7c2..98c6046bf 100644
--- a/zellij-server/src/panes/floating_panes/mod.rs
+++ b/zellij-server/src/panes/floating_panes/mod.rs
@@ -1,11 +1,11 @@
 mod floating_pane_grid;
 use zellij_utils::{
-    data::{Direction, ResizeStrategy},
+    data::{Direction, PaneInfo, ResizeStrategy},
     position::Position,
 };
 
 use crate::resize_pty;
-use crate::tab::Pane;
+use crate::tab::{pane_info_for_pane, Pane};
 use floating_pane_grid::FloatingPaneGrid;
 
 use crate::{
@@ -885,4 +885,17 @@ impl FloatingPanes {
             Err(anyhow!("Pane not found"))
         }
     }
+    pub fn pane_info(&self) -> Vec<PaneInfo> {
+        let mut pane_infos = vec![];
+        for (pane_id, pane) in self.panes.iter() {
+            let mut pane_info_for_pane = pane_info_for_pane(pane_id, pane);
+            let is_focused = self.active_panes.pane_id_is_focused(pane_id);
+            pane_info_for_pane.is_floating = true;
+            pane_info_for_pane.is_suppressed = false;
+            pane_info_for_pane.is_focused = is_focused;
+            pane_info_for_pane.is_fullscreen = false;
+            pane_infos.push(pane_info_for_pane);
+        }
+        pane_infos
+    }
 }
diff --git a/zellij-server/src/panes/plugin_pane.rs b/zellij-server/src/panes/plugin_pane.rs
index d1d595f23..557769f02 100644
--- a/zellij-server/src/panes/plugin_pane.rs
+++ b/zellij-server/src/panes/plugin_pane.rs
@@ -564,6 +564,13 @@ impl Pane for PluginPane {
             self.loading_indication.to_string().as_bytes().to_vec(),
         );
     }
+    fn current_title(&self) -> String {
+        if self.pane_name.is_empty() {
+            self.pane_title.to_owned()
+        } else {
+            self.pane_name.to_owned()
+        }
+    }
 }
 
 impl PluginPane {
diff --git a/zellij-server/src/panes/terminal_pane.rs b/zellij-server/src/panes/terminal_pane.rs
index c9e125b8d..df74afd69 100644
--- a/zellij-server/src/panes/terminal_pane.rs
+++ b/zellij-server/src/panes/terminal_pane.rs
@@ -720,6 +720,31 @@ impl Pane for TerminalPane {
     fn set_title(&mut self, title: String) {
         self.pane_title = title;
     }
+    fn current_title(&self) -> String {
+        if self.pane_name.is_empty() {
+            self.grid
+                .title
+                .as_deref()
+                .unwrap_or(&self.pane_title)
+                .into()
+        } else {
+            self.pane_name.to_owned()
+        }
+    }
+    fn exit_status(&self) -> Option<i32> {
+        self.is_held
+            .as_ref()
+            .and_then(|(exit_status, _, _)| *exit_status)
+    }
+    fn is_held(&self) -> bool {
+        self.is_held.is_some()
+    }
+    fn exited(&self) -> bool {
+        match self.is_held {
+            Some((_, is_first_run, _)) => !is_first_run,
+            None => false,
+        }
+    }
 }
 
 impl TerminalPane {
diff --git a/zellij-server/src/panes/tiled_panes/mod.rs b/zellij-server/src/panes/tiled_panes/mod.rs
index 3734214af..424053405 100644
--- a/zellij-server/src/panes/tiled_panes/mod.rs
+++ b/zellij-server/src/panes/tiled_panes/mod.rs
@@ -10,7 +10,7 @@ use crate::{
     output::Output,
     panes::{ActivePanes, PaneId},
     plugins::PluginInstruction,
-    tab::{Pane, MIN_TERMINAL_HEIGHT, MIN_TERMINAL_WIDTH},
+    tab::{pane_info_for_pane, Pane, MIN_TERMINAL_HEIGHT, MIN_TERMINAL_WIDTH},
     thread_bus::ThreadSenders,
     ui::boundaries::Boundaries,
     ui::pane_contents_and_ui::PaneContentsAndUi,
@@ -18,7 +18,7 @@ use crate::{
 };
 use stacked_panes::StackedPanes;
 use zellij_utils::{
-    data::{Direction, ModeInfo, ResizeStrategy, Style},
+    data::{Direction, ModeInfo, PaneInfo, ResizeStrategy, Style},
     errors::prelude::*,
     input::{
         command::RunCommand,
@@ -1709,6 +1709,19 @@ impl TiledPanes {
             .find(|(_id, s_p)| s_p.invoked_with() == &run)
             .map(|(id, _)| *id)
     }
+    pub fn pane_info(&self) -> Vec<PaneInfo> {
+        let mut pane_infos = vec![];
+        for (pane_id, pane) in self.panes.iter() {
+            let mut pane_info_for_pane = pane_info_for_pane(pane_id, pane);
+            let is_focused = self.active_panes.pane_id_is_focused(pane_id);
+            pane_info_for_pane.is_floating = false;
+            pane_info_for_pane.is_suppressed = false;
+            pane_info_for_pane.is_focused = is_focused;
+            pane_info_for_pane.is_fullscreen = is_focused && self.fullscreen_is_active();
+            pane_infos.push(pane_info_for_pane);
+        }
+        pane_infos
+    }
 }
 
 #[allow(clippy::borrowed_box)]