all: refactor windows code out of core

There are still some links from core to window but its now separate
enough to fix PanelWindow in qml tooling.

src/window/popupwindow.cpp

@@ -0,0 +1,135 @@
+#include "popupwindow.hpp"
+
+#include <qlogging.h>
+#include <qnamespace.h>
+#include <qobject.h>
+#include <qquickwindow.h>
+#include <qtypes.h>
+#include <qwindow.h>
+
+#include "../core/popupanchor.hpp"
+#include "../core/qmlscreen.hpp"
+#include "windowinterface.hpp"
+
+ProxyPopupWindow::ProxyPopupWindow(QObject* parent): ProxyWindowBase(parent) {
+	this->mVisible = false;
+	// clang-format off
+	QObject::connect(&this->mAnchor, &PopupAnchor::windowChanged, this, &ProxyPopupWindow::parentWindowChanged);
+	QObject::connect(&this->mAnchor, &PopupAnchor::rectChanged, this, &ProxyPopupWindow::reposition);
+	QObject::connect(&this->mAnchor, &PopupAnchor::edgesChanged, this, &ProxyPopupWindow::reposition);
+	QObject::connect(&this->mAnchor, &PopupAnchor::gravityChanged, this, &ProxyPopupWindow::reposition);
+	QObject::connect(&this->mAnchor, &PopupAnchor::adjustmentChanged, this, &ProxyPopupWindow::reposition);
+	QObject::connect(&this->mAnchor, &PopupAnchor::backingWindowVisibilityChanged, this, &ProxyPopupWindow::onParentUpdated);
+	// clang-format on
+}
+
+void ProxyPopupWindow::completeWindow() {
+	this->ProxyWindowBase::completeWindow();
+
+	// clang-format off
+	QObject::connect(this->window, &QWindow::visibleChanged, this, &ProxyPopupWindow::onVisibleChanged);
+	QObject::connect(this->window, &QWindow::widthChanged, this, &ProxyPopupWindow::reposition);
+	QObject::connect(this->window, &QWindow::heightChanged, this, &ProxyPopupWindow::reposition);
+	// clang-format on
+
+	this->window->setFlag(Qt::ToolTip);
+}
+
+void ProxyPopupWindow::postCompleteWindow() { this->updateTransientParent(); }
+
+void ProxyPopupWindow::setParentWindow(QObject* parent) {
+	qWarning() << "PopupWindow.parentWindow is deprecated. Use PopupWindow.anchor.window.";
+	this->mAnchor.setWindow(parent);
+}
+
+QObject* ProxyPopupWindow::parentWindow() const {
+	qWarning() << "PopupWindow.parentWindow is deprecated. Use PopupWindow.anchor.window.";
+	return this->mAnchor.window();
+}
+
+void ProxyPopupWindow::updateTransientParent() {
+	auto* bw = this->mAnchor.backingWindow();
+
+	if (this->window != nullptr && bw != this->window->transientParent()) {
+		if (this->window->transientParent()) {
+			QObject::disconnect(this->window->transientParent(), nullptr, this, nullptr);
+		}
+
+		if (bw && PopupPositioner::instance()->shouldRepositionOnMove()) {
+			QObject::connect(bw, &QWindow::xChanged, this, &ProxyPopupWindow::reposition);
+			QObject::connect(bw, &QWindow::yChanged, this, &ProxyPopupWindow::reposition);
+			QObject::connect(bw, &QWindow::widthChanged, this, &ProxyPopupWindow::reposition);
+			QObject::connect(bw, &QWindow::heightChanged, this, &ProxyPopupWindow::reposition);
+		}
+
+		this->window->setTransientParent(bw);
+	}
+
+	this->updateVisible();
+}
+
+void ProxyPopupWindow::onParentUpdated() { this->updateTransientParent(); }
+
+void ProxyPopupWindow::setScreen(QuickshellScreenInfo* /*unused*/) {
+	qWarning() << "Cannot set screen of popup window, as that is controlled by the parent window";
+}
+
+void ProxyPopupWindow::setVisible(bool visible) {
+	if (visible == this->wantsVisible) return;
+	this->wantsVisible = visible;
+	this->updateVisible();
+}
+
+void ProxyPopupWindow::updateVisible() {
+	auto target = this->wantsVisible && this->mAnchor.window() != nullptr
+	           && this->mAnchor.proxyWindow()->isVisibleDirect();
+
+	if (target && this->window != nullptr && !this->window->isVisible()) {
+		PopupPositioner::instance()->reposition(&this->mAnchor, this->window);
+	}
+
+	this->ProxyWindowBase::setVisible(target);
+}
+
+void ProxyPopupWindow::onVisibleChanged() {
+	// If the window was made invisible without its parent becoming invisible
+	// the compositor probably destroyed it. Without this the window won't ever
+	// be able to become visible again.
+	if (this->window->transientParent() && this->window->transientParent()->isVisible()) {
+		this->wantsVisible = this->window->isVisible();
+	}
+}
+
+void ProxyPopupWindow::setRelativeX(qint32 x) {
+	qWarning() << "PopupWindow.relativeX is deprecated. Use PopupWindow.anchor.rect.x.";
+	auto rect = this->mAnchor.rect();
+	if (x == rect.x) return;
+	rect.x = x;
+	this->mAnchor.setRect(rect);
+}
+
+qint32 ProxyPopupWindow::relativeX() const {
+	qWarning() << "PopupWindow.relativeX is deprecated. Use PopupWindow.anchor.rect.x.";
+	return this->mAnchor.rect().x;
+}
+
+void ProxyPopupWindow::setRelativeY(qint32 y) {
+	qWarning() << "PopupWindow.relativeY is deprecated. Use PopupWindow.anchor.rect.y.";
+	auto rect = this->mAnchor.rect();
+	if (y == rect.y) return;
+	rect.y = y;
+	this->mAnchor.setRect(rect);
+}
+
+qint32 ProxyPopupWindow::relativeY() const {
+	qWarning() << "PopupWindow.relativeY is deprecated. Use PopupWindow.anchor.rect.y.";
+	return this->mAnchor.rect().y;
+}
+
+PopupAnchor* ProxyPopupWindow::anchor() { return &this->mAnchor; }
+
+void ProxyPopupWindow::reposition() {
+	if (this->window != nullptr) {
+		PopupPositioner::instance()->reposition(&this->mAnchor, this->window);
+	}
+}