#include "abstractwindowcontext_p.h"
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namespace QWK {
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AbstractWindowContext::AbstractWindowContext()
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: m_host(nullptr), m_delegate(nullptr), m_windowHandle(nullptr) {
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}
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AbstractWindowContext::~AbstractWindowContext() = default;
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class EventFilterForwarder : public QObject {
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public:
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using EventProc = bool (*)(QEvent *, void *);
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EventFilterForwarder(EventProc proc, void *user, QObject *parent = nullptr)
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: QObject(parent), proc(proc), user(user) {
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}
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bool eventFilter(QObject *obj, QEvent *event) override {
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Q_UNUSED(obj)
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return proc(event, user);
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}
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protected:
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EventProc proc;
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void *user;
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};
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bool AbstractWindowContext::setup(QObject *host, WindowItemDelegate *delegate) {
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if (!host || !delegate) {
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return false;
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}
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auto windowHandle = delegate->hostWindow(host);
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if (!windowHandle) {
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return false;
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}
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m_host = host;
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m_delegate.reset(delegate);
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m_windowHandle = windowHandle;
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if (!setupHost()) {
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m_host = nullptr;
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m_delegate = nullptr;
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m_windowHandle = nullptr;
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return false;
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}
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// Install specific event filter
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host->installEventFilter(new EventFilterForwarder(
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[](QEvent *event, void *user) {
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return static_cast<AbstractWindowContext *>(user)->hostEventFilter(event);
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},
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this, this));
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return true;
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}
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bool AbstractWindowContext::setHitTestVisible(const QObject *obj, bool visible) {
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Q_ASSERT(obj);
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if (!obj) {
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return false;
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}
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if (visible) {
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m_hitTestVisibleItems.insert(obj);
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} else {
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m_hitTestVisibleItems.remove(obj);
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}
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return true;
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}
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bool AbstractWindowContext::setHitTestVisible(const QRect &rect, bool visible) {
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Q_ASSERT(rect.isValid());
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if (!rect.isValid()) {
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return false;
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}
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if (visible) {
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m_hitTestVisibleRects.append(rect);
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} else {
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m_hitTestVisibleRects.removeAll(rect);
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}
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hitTestVisibleShapeDirty = true;
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return true;
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}
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bool AbstractWindowContext::setSystemButton(CoreWindowAgent::SystemButton button,
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const QObject *obj) {
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Q_ASSERT(obj);
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Q_ASSERT(button != CoreWindowAgent::Unknown);
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if (!obj || (button == CoreWindowAgent::Unknown)) {
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return false;
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}
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if (m_systemButtons[button] == obj) {
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return false;
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}
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m_systemButtons[button] = obj;
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return true;
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}
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bool AbstractWindowContext::setTitleBar(const QObject *item) {
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Q_ASSERT(item);
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if (!item) {
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return false;
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}
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if (m_titleBar == item) {
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return false;
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}
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m_titleBar = item;
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return true;
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}
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void AbstractWindowContext::showSystemMenu(const QPoint &pos) {
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// ?
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}
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QRegion AbstractWindowContext::hitTestShape() const {
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if (hitTestVisibleShapeDirty) {
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hitTestVisibleShape = {};
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for (const auto &rect : m_hitTestVisibleRects) {
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hitTestVisibleShape += rect;
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}
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hitTestVisibleShapeDirty = false;
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}
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return hitTestVisibleShape;
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}
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bool AbstractWindowContext::isInSystemButtons(const QPoint &pos,
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CoreWindowAgent::SystemButton *button) const {
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*button = CoreWindowAgent::Unknown;
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for (int i = CoreWindowAgent::WindowIcon; i <= CoreWindowAgent::Close; ++i) {
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auto currentButton = m_systemButtons[i];
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if (!currentButton || !m_delegate->isVisible(currentButton) ||
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!m_delegate->isEnabled(currentButton)) {
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continue;
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}
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if (m_delegate->mapGeometryToScene(currentButton).contains(pos)) {
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*button = static_cast<CoreWindowAgent::SystemButton>(i);
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return true;
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}
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}
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return false;
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}
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bool AbstractWindowContext::isInTitleBarDraggableArea(const QPoint &pos) const {
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if (!m_titleBar) {
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// There's no title bar at all, the mouse will always be in the client area.
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return false;
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}
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if (!m_delegate->isVisible(m_titleBar) || !m_delegate->isEnabled(m_titleBar)) {
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// The title bar is hidden or disabled for some reason, treat it as there's
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// no title bar.
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return false;
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}
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QRect windowRect = {QPoint(0, 0), m_windowHandle->size()};
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QRect titleBarRect = m_delegate->mapGeometryToScene(m_titleBar);
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if (!titleBarRect.intersects(windowRect)) {
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// The title bar is totally outside the window for some reason,
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// also treat it as there's no title bar.
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return false;
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}
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if (!titleBarRect.contains(pos)) {
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return false;
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}
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for (int i = CoreWindowAgent::WindowIcon; i <= CoreWindowAgent::Close; ++i) {
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auto currentButton = m_systemButtons[i];
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if (currentButton && m_delegate->isVisible(currentButton) &&
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m_delegate->isEnabled(currentButton) &&
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m_delegate->mapGeometryToScene(currentButton).contains(pos)) {
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return false;
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}
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}
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for (auto widget : m_hitTestVisibleItems) {
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if (widget && m_delegate->isVisible(widget) && m_delegate->isEnabled(widget) &&
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m_delegate->mapGeometryToScene(widget).contains(pos)) {
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return false;
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}
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}
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if (!m_hitTestVisibleRects.isEmpty() && hitTestShape().contains(pos)) {
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return false;
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}
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return true;
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}
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bool AbstractWindowContext::hostEventFilter(QEvent *event) {
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Q_UNUSED(event)
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return false;
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}
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}
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