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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant
#include "qquickwindowinspector.h"
#include "inspecttool.h"
#include <private/qquickitem_p.h>
QT_BEGIN_NAMESPACE
namespace QmlJSDebugger {
/*
* Returns the first visible item at the given position, or 0 when no such
* child exists.
*/
static QQuickItem *itemAt(QQuickItem *item, const QPointF &pos,
QQuickItem *overlay)
{
if (item == overlay)
return nullptr;
if (!item->isVisible() || item->opacity() == 0.0)
return nullptr;
if (item->flags() & QQuickItem::ItemClipsChildrenToShape) {
if (!QRectF(0, 0, item->width(), item->height()).contains(pos))
return nullptr;
}
QList<QQuickItem *> children = QQuickItemPrivate::get(item)->paintOrderChildItems();
for (int i = children.size() - 1; i >= 0; --i) {
QQuickItem *child = children.at(i);
if (QQuickItem *betterCandidate = itemAt(child, item->mapToItem(child, pos),
overlay))
return betterCandidate;
}
if (!(item->flags() & QQuickItem::ItemHasContents))
return nullptr;
if (!QRectF(0, 0, item->width(), item->height()).contains(pos))
return nullptr;
return item;
}
/*
* Collects all the items at the given position, from top to bottom.
*/
static void collectItemsAt(QQuickItem *item, const QPointF &pos,
QQuickItem *overlay, QList<QQuickItem *> &resultList)
{
if (item == overlay)
return;
if (item->flags() & QQuickItem::ItemClipsChildrenToShape) {
if (!QRectF(0, 0, item->width(), item->height()).contains(pos))
return;
}
QList<QQuickItem *> children = QQuickItemPrivate::get(item)->paintOrderChildItems();
for (int i = children.size() - 1; i >= 0; --i) {
QQuickItem *child = children.at(i);
collectItemsAt(child, item->mapToItem(child, pos), overlay, resultList);
}
if (!QRectF(0, 0, item->width(), item->height()).contains(pos))
return;
resultList.append(item);
}
QQuickWindowInspector::QQuickWindowInspector(QQuickWindow *quickWindow, QObject *parent) :
QObject(parent),
m_overlay(new QQuickItem),
m_window(quickWindow),
m_parentWindow(nullptr),
m_tool(nullptr)
{
setParentWindow(quickWindow);
// Try to make sure the overlay is always on top
m_overlay->setZ(FLT_MAX);
if (QQuickItem *root = m_window->contentItem())
m_overlay->setParentItem(root);
m_window->installEventFilter(this);
}
bool QQuickWindowInspector::eventFilter(QObject *obj, QEvent *event)
{
if (!m_tool || obj != m_window)
return QObject::eventFilter(obj, event);
switch (event->type()) {
case QEvent::Enter:
m_tool->enterEvent(static_cast<QEnterEvent*>(event));
return true;
case QEvent::Leave:
m_tool->leaveEvent(event);
return true;
case QEvent::MouseButtonPress:
m_tool->mousePressEvent(static_cast<QMouseEvent*>(event));
return true;
case QEvent::MouseMove:
m_tool->mouseMoveEvent(static_cast<QMouseEvent*>(event));
return true;
case QEvent::MouseButtonRelease:
return true;
case QEvent::KeyPress:
m_tool->keyPressEvent(static_cast<QKeyEvent*>(event));
return true;
case QEvent::KeyRelease:
return true;
case QEvent::MouseButtonDblClick:
m_tool->mouseDoubleClickEvent(static_cast<QMouseEvent*>(event));
return true;
#if QT_CONFIG(wheelevent)
case QEvent::Wheel:
return true;
#endif
case QEvent::TouchBegin:
case QEvent::TouchUpdate:
case QEvent::TouchEnd:
m_tool->touchEvent(static_cast<QTouchEvent*>(event));
return true;
default:
break;
}
return QObject::eventFilter(obj, event);
}
static Qt::WindowFlags fixFlags(Qt::WindowFlags flags)
{
// If only the type flag is given, some other window flags are automatically assumed. When we
// add a flag, we need to make those explicit.
switch (flags) {
case Qt::Window:
return flags | Qt::WindowTitleHint | Qt::WindowSystemMenuHint | Qt::WindowCloseButtonHint
| Qt::WindowMinimizeButtonHint | Qt::WindowMaximizeButtonHint;
case Qt::Dialog:
case Qt::Tool:
return flags | Qt::WindowTitleHint | Qt::WindowSystemMenuHint | Qt::WindowCloseButtonHint;
default:
return flags;
}
}
void QQuickWindowInspector::setShowAppOnTop(bool appOnTop)
{
if (!m_parentWindow)
return;
Qt::WindowFlags flags = m_parentWindow->flags();
Qt::WindowFlags newFlags = appOnTop ? (fixFlags(flags) | Qt::WindowStaysOnTopHint) :
(flags & ~Qt::WindowStaysOnTopHint);
if (newFlags != flags)
m_parentWindow->setFlags(newFlags);
}
bool QQuickWindowInspector::isEnabled() const
{
return m_tool != nullptr;
}
void QQuickWindowInspector::setEnabled(bool enabled)
{
if (enabled) {
m_tool = new InspectTool(this, m_window);
} else {
delete m_tool;
m_tool = nullptr;
}
}
QQuickWindow *QQuickWindowInspector::quickWindow() const
{
return m_window;
}
void QQuickWindowInspector::setParentWindow(QWindow *parentWindow)
{
if (parentWindow) {
while (QWindow *w = parentWindow->parent())
parentWindow = w;
}
m_parentWindow = parentWindow;
}
QList<QQuickItem *> QQuickWindowInspector::itemsAt(const QPointF &pos) const
{
QList<QQuickItem *> resultList;
QQuickItem *root = m_window->contentItem();
collectItemsAt(root, root->mapFromScene(pos), m_overlay,
resultList);
return resultList;
}
QQuickItem *QQuickWindowInspector::topVisibleItemAt(const QPointF &pos) const
{
QQuickItem *root = m_window->contentItem();
return itemAt(root, root->mapFromScene(pos), m_overlay);
}
} // namespace QmlJSDebugger
QT_END_NAMESPACE
#include "moc_qquickwindowinspector.cpp"