Add macro dock windows

They can be used to consolidate multiple macro docks into a single dock
window

lib/macro/macro-dock-window.cpp

@@ -0,0 +1,170 @@
+#include "macro-dock-window.hpp"
+#include "log-helper.hpp"
+#include "plugin-state-helpers.hpp"
+
+#include <obs-frontend-api.h>
+
+#include <QDockWidget>
+#include <QLayout>
+#include <mutex>
+
+namespace advss {
+
+static std::unordered_map<std::string, MacroDockWindow *> windows;
+static std::unordered_map<std::string, QByteArray> windowGeometries;
+static std::mutex mutex;
+
+static void saveDocks(obs_data_t *obj)
+{
+	std::lock_guard<std::mutex> lock(mutex);
+	OBSDataAutoRelease data = obs_data_create();
+	OBSDataArrayAutoRelease array = obs_data_array_create();
+	for (const auto &[name, window] : windows) {
+		OBSDataAutoRelease dockData = obs_data_create();
+		obs_data_set_string(dockData, "name", name.c_str());
+		obs_data_set_string(dockData, "geometry",
+				    window->GetWindow()
+					    ->saveState()
+					    .toBase64()
+					    .toStdString()
+					    .c_str());
+		obs_data_array_push_back(array, dockData);
+	}
+	obs_data_set_array(data, "docks", array);
+	obs_data_set_obj(obj, "dockWindows", data);
+}
+
+static void restoreDockGeometry()
+{
+	std::lock_guard<std::mutex> lock(mutex);
+	for (const auto &[name, dock] : windows) {
+		const auto it = windowGeometries.find(name);
+		if (it == windowGeometries.end()) {
+			continue;
+		}
+
+		dock->GetWindow()->restoreState(it->second);
+	}
+}
+
+static void loadDocks(obs_data_t *obj)
+{
+	std::lock_guard<std::mutex> lock(mutex);
+	windowGeometries.clear();
+	OBSDataAutoRelease data = obs_data_get_obj(obj, "dockWindows");
+	OBSDataArrayAutoRelease array = obs_data_get_array(data, "docks");
+	auto size = obs_data_array_count(array);
+	for (size_t i = 0; i < size; ++i) {
+		OBSDataAutoRelease dockData = obs_data_array_item(array, i);
+		const auto name = obs_data_get_string(dockData, "name");
+		const auto geometry = QByteArray::fromBase64(
+			obs_data_get_string(dockData, "geometry"));
+		windowGeometries[name] = geometry;
+	}
+	AddPostLoadStep(restoreDockGeometry);
+}
+
+[[maybe_unused]] static bool _ = []() {
+	AddPluginInitStep([]() {
+		AddSaveStep(saveDocks);
+		AddLoadStep(loadDocks);
+	});
+	return true;
+}();
+
+MacroDockWindow::MacroDockWindow(const std::string &name)
+	: QFrame(),
+	  _name(name),
+	  _window(new QMainWindow())
+{
+	setFrameShape(QFrame::StyledPanel);
+	setFrameShadow(QFrame::Sunken);
+	_window->setDockNestingEnabled(true);
+	auto layout = new QVBoxLayout;
+	layout->addWidget(_window);
+	setLayout(layout);
+}
+
+QWidget *MacroDockWindow::AddMacroDock(QWidget *widget, const QString &title)
+{
+	auto dock = new QDockWidget();
+	dock->setWindowTitle(title);
+	dock->setWidget(widget);
+	dock->setVisible(true);
+	dock->setFeatures(QDockWidget::DockWidgetMovable);
+	dock->setObjectName(title);
+	_window->addDockWidget(Qt::RightDockWidgetArea, dock);
+	return dock;
+}
+
+void MacroDockWindow::RenameMacro(const std::string &oldName,
+				  const std::string &newName)
+{
+	auto docks = _window->findChildren<QDockWidget *>();
+	for (const auto dock : docks) {
+		if (dock->windowTitle() == QString::fromStdString(oldName)) {
+			dock->setWindowTitle(QString::fromStdString(newName));
+			break;
+		}
+	}
+}
+
+void MacroDockWindow::RemoveMacroDock(QWidget *widget)
+{
+	bool removedDock = false;
+	auto docks = _window->findChildren<QDockWidget *>();
+	for (const auto dock : docks) {
+		if (dock->widget() == widget) {
+			_window->removeDockWidget(dock);
+			dock->deleteLater();
+			removedDock = true;
+			break;
+		}
+	}
+
+	if (OBSIsShuttingDown()) {
+		return;
+	}
+
+	const bool shouldRemoveDockWindow = docks.isEmpty() ||
+					    (removedDock && docks.count() == 1);
+	if (!shouldRemoveDockWindow) {
+		return;
+	}
+
+	std::lock_guard<std::mutex> lock(mutex);
+	auto it = windows.find(_name);
+	if (it != windows.end()) {
+		windows.erase(it);
+	}
+
+	const auto id = "advss-dock-window-" + _name;
+	obs_frontend_remove_dock(id.c_str());
+}
+
+QMainWindow *MacroDockWindow::GetWindow() const
+{
+	return _window;
+}
+
+MacroDockWindow *GetDockWindowByName(const std::string &name)
+{
+	std::lock_guard<std::mutex> lock(mutex);
+	auto it = windows.find(name);
+	if (it != windows.end()) {
+		return it->second;
+	}
+
+	auto window = new MacroDockWindow(name);
+	const auto id = "advss-dock-window-" + name;
+	if (!obs_frontend_add_dock_by_id(id.c_str(), name.c_str(), window)) {
+		blog(LOG_INFO, "failed to add macro dock window '%s'",
+		     id.c_str());
+		return nullptr;
+	}
+
+	windows[name] = window;
+	return window;
+}
+
+} // namespace advss

lib/macro/macro-dock-window.hpp

@@ -0,0 +1,29 @@
+#pragma once
+#include <QFrame>
+#include <QMainWindow>
+#include <QWidget>
+
+#include <string>
+#include <vector>
+
+namespace advss {
+
+class MacroDockWindow : public QFrame {
+	Q_OBJECT
+
+public:
+	MacroDockWindow(const std::string &name);
+	QWidget *AddMacroDock(QWidget *, const QString &title);
+	void RenameMacro(const std::string &oldName,
+			 const std::string &newName);
+	void RemoveMacroDock(QWidget *);
+	QMainWindow *GetWindow() const;
+
+private:
+	std::string _name;
+	QMainWindow *_window;
+};
+
+MacroDockWindow *GetDockWindowByName(const std::string &name);
+
+} // namespace advss