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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include "qwasmwindowtreenode.h"
#include "qwasmwindow.h"
QWasmWindowTreeNode::QWasmWindowTreeNode()
: m_childStack(std::bind(&QWasmWindowTreeNode::onTopWindowChanged, this))
{
}
QWasmWindowTreeNode::~QWasmWindowTreeNode() = default;
void QWasmWindowTreeNode::onParentChanged(QWasmWindowTreeNode *previousParent,
QWasmWindowTreeNode *currentParent,
QWasmWindowStack::PositionPreference positionPreference)
{
auto *window = asWasmWindow();
if (previousParent) {
previousParent->m_childStack.removeWindow(window);
previousParent->onSubtreeChanged(QWasmWindowTreeNodeChangeType::NodeRemoval, previousParent,
window);
}
if (currentParent) {
currentParent->m_childStack.pushWindow(window, positionPreference);
currentParent->onSubtreeChanged(QWasmWindowTreeNodeChangeType::NodeInsertion, currentParent,
window);
}
}
QWasmWindow *QWasmWindowTreeNode::asWasmWindow()
{
return nullptr;
}
void QWasmWindowTreeNode::onSubtreeChanged(QWasmWindowTreeNodeChangeType changeType,
QWasmWindowTreeNode *parent, QWasmWindow *child)
{
if (changeType == QWasmWindowTreeNodeChangeType::NodeInsertion && parent == this
&& m_childStack.topWindow()
&& m_childStack.topWindow()->window()) {
const QVariant showWithoutActivating = m_childStack.topWindow()->window()->property("_q_showWithoutActivating");
if (!showWithoutActivating.isValid() || !showWithoutActivating.toBool())
m_childStack.topWindow()->requestActivateWindow();
}
if (parentNode())
parentNode()->onSubtreeChanged(changeType, parent, child);
}
void QWasmWindowTreeNode::setWindowZOrder(QWasmWindow *window, int z)
{
window->setZOrder(z);
}
void QWasmWindowTreeNode::onPositionPreferenceChanged(
QWasmWindowStack::PositionPreference positionPreference)
{
if (parentNode()) {
parentNode()->m_childStack.windowPositionPreferenceChanged(asWasmWindow(),
positionPreference);
}
}
void QWasmWindowTreeNode::setAsActiveNode()
{
if (parentNode())
parentNode()->setActiveChildNode(asWasmWindow());
}
void QWasmWindowTreeNode::bringToTop()
{
if (!parentNode())
return;
parentNode()->m_childStack.raise(asWasmWindow());
parentNode()->bringToTop();
}
void QWasmWindowTreeNode::sendToBottom()
{
if (!parentNode())
return;
m_childStack.lower(asWasmWindow());
}
void QWasmWindowTreeNode::onTopWindowChanged()
{
constexpr int zOrderForElementInFrontOfScreen = 3;
int z = zOrderForElementInFrontOfScreen;
std::for_each(m_childStack.rbegin(), m_childStack.rend(),
[this, &z](QWasmWindow *window) { setWindowZOrder(window, z++); });
}
void QWasmWindowTreeNode::setActiveChildNode(QWasmWindow *activeChild)
{
m_activeChild = activeChild;
auto it = m_childStack.begin();
if (it == m_childStack.end())
return;
for (; it != m_childStack.end(); ++it)
(*it)->onActivationChanged(*it == m_activeChild);
setAsActiveNode();
}
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