From 2e33ef5b7f8822b7aabed4ad77a53b00439fec08 Mon Sep 17 00:00:00 2001
From: outfoxxed <outfoxxed@outfoxxed.me>
Date: Mon, 19 May 2025 00:01:04 -0700
Subject: [PATCH] hyprland/ipc: track workspace fullscreen state

---
 src/wayland/hyprland/ipc/connection.cpp | 9 +++++++++
 src/wayland/hyprland/ipc/workspace.cpp  | 2 ++
 src/wayland/hyprland/ipc/workspace.hpp  | 5 +++++
 3 files changed, 16 insertions(+)

diff --git a/src/wayland/hyprland/ipc/connection.cpp b/src/wayland/hyprland/ipc/connection.cpp
index 5e56e09b..1c9f4ebf 100644
--- a/src/wayland/hyprland/ipc/connection.cpp
+++ b/src/wayland/hyprland/ipc/connection.cpp
@@ -381,6 +381,15 @@ void HyprlandIpc::onEvent(HyprlandIpcEvent* event) {
 		                        << (*workspaceIter)->bindableName().value() << "to" << name;
 
 		(*workspaceIter)->bindableName().setValue(name);
+	} else if (event->name == "fullscreen") {
+		if (auto* workspace = this->bFocusedWorkspace.value()) {
+			workspace->bindableHasFullscreen().setValue(event->data == "1");
+		}
+
+		// In theory knowing the current workspace would be enough to determine where
+		// the fullscreen state changed, but this falls apart if you move a fullscreen
+		// window between workspaces.
+		this->refreshWorkspaces(false);
 	}
 }
 
diff --git a/src/wayland/hyprland/ipc/workspace.cpp b/src/wayland/hyprland/ipc/workspace.cpp
index d8f00e3d..bc0070d7 100644
--- a/src/wayland/hyprland/ipc/workspace.cpp
+++ b/src/wayland/hyprland/ipc/workspace.cpp
@@ -38,6 +38,7 @@ void HyprlandWorkspace::updateInitial(qint32 id, const QString& name) {
 void HyprlandWorkspace::updateFromObject(QVariantMap object) {
 	auto monitorId = object.value("monitorID").value<qint32>();
 	auto monitorName = object.value("monitor").value<QString>();
+	auto hasFullscreen = object.value("hasfullscreen").value<bool>();
 
 	auto initial = this->bId == -1;
 
@@ -59,6 +60,7 @@ void HyprlandWorkspace::updateFromObject(QVariantMap object) {
 		this->setMonitor(monitor);
 	}
 
+	this->bHasFullscreen = hasFullscreen;
 	this->mLastIpcObject = std::move(object);
 	emit this->lastIpcObjectChanged();
 }
diff --git a/src/wayland/hyprland/ipc/workspace.hpp b/src/wayland/hyprland/ipc/workspace.hpp
index a67a7fec..3493c5f1 100644
--- a/src/wayland/hyprland/ipc/workspace.hpp
+++ b/src/wayland/hyprland/ipc/workspace.hpp
@@ -24,6 +24,8 @@ class HyprlandWorkspace: public QObject {
 	/// If this workspace is currently active on a monitor and that monitor is currently
 	/// focused. See also @@active.
 	Q_PROPERTY(bool focused READ default NOTIFY focusedChanged BINDABLE bindableFocused);
+	/// If this workspace currently has a fullscreen client.
+	Q_PROPERTY(bool hasFullscreen READ default NOTIFY focusedChanged BINDABLE bindableHasFullscreen);
 	/// Last json returned for this workspace, as a javascript object.
 	///
 	/// > [!WARNING] This is *not* updated unless the workspace object is fetched again from
@@ -53,6 +55,7 @@ public:
 	[[nodiscard]] QBindable<QString> bindableName() { return &this->bName; }
 	[[nodiscard]] QBindable<bool> bindableActive() { return &this->bActive; }
 	[[nodiscard]] QBindable<bool> bindableFocused() { return &this->bFocused; }
+	[[nodiscard]] QBindable<bool> bindableHasFullscreen() { return &this->bHasFullscreen; }
 	[[nodiscard]] QBindable<HyprlandMonitor*> bindableMonitor() { return &this->bMonitor; }
 
 	[[nodiscard]] QVariantMap lastIpcObject() const;
@@ -64,6 +67,7 @@ signals:
 	void nameChanged();
 	void activeChanged();
 	void focusedChanged();
+	void hasFullscreenChanged();
 	void lastIpcObjectChanged();
 	void monitorChanged();
 
@@ -80,6 +84,7 @@ private:
 	Q_OBJECT_BINDABLE_PROPERTY(HyprlandWorkspace, QString, bName, &HyprlandWorkspace::nameChanged);
 	Q_OBJECT_BINDABLE_PROPERTY(HyprlandWorkspace, bool, bActive, &HyprlandWorkspace::activeChanged);
 	Q_OBJECT_BINDABLE_PROPERTY(HyprlandWorkspace, bool, bFocused, &HyprlandWorkspace::focusedChanged);
+	Q_OBJECT_BINDABLE_PROPERTY(HyprlandWorkspace, bool, bHasFullscreen, &HyprlandWorkspace::hasFullscreenChanged);
 	Q_OBJECT_BINDABLE_PROPERTY(HyprlandWorkspace, HyprlandMonitor*, bMonitor, &HyprlandWorkspace::monitorChanged);
 	// clang-format on
 };