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/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "WindowStack.h"
#include "WindowManager.h"
namespace WindowServer {
WindowStack::WindowStack(unsigned row, unsigned column)
: m_row(row)
, m_column(column)
{
}
WindowStack::~WindowStack()
{
}
void WindowStack::add(Window& window)
{
VERIFY(!window.is_on_any_window_stack({}));
m_windows.append(window);
window.set_window_stack({}, this);
move_pinned_windows_to_front();
}
void WindowStack::add_to_back(Window& window)
{
VERIFY(!window.is_on_any_window_stack({}));
m_windows.prepend(window);
window.set_window_stack({}, this);
}
void WindowStack::remove(Window& window)
{
VERIFY(&window.window_stack() == this);
m_windows.remove(window);
window.set_window_stack({}, nullptr);
if (m_active_window == &window)
m_active_window = nullptr;
if (m_active_input_window == &window)
m_active_input_window = nullptr;
if (m_active_input_tracking_window == &window)
m_active_input_tracking_window = nullptr;
}
void WindowStack::move_to_front(Window& window)
{
if (m_windows.last() != &window)
window.invalidate();
m_windows.remove(window);
m_windows.append(window);
move_pinned_windows_to_front();
if (window.is_pinned()) {
m_windows.remove(window);
m_windows.append(window);
window.invalidate();
}
}
void WindowStack::move_pinned_windows_to_front()
{
Window::List pinned_list;
for (auto iterator = m_windows.begin(); iterator != m_windows.end(); ++iterator) {
auto& window = *iterator;
if (window.is_pinned()) {
m_windows.remove(window);
pinned_list.append(window);
iterator = m_windows.begin();
}
}
while (!pinned_list.is_empty()) {
auto& window = *pinned_list.begin();
pinned_list.remove(window);
m_windows.append(window);
window.invalidate();
}
}
void WindowStack::move_all_windows(WindowStack& new_window_stack, Vector<Window*, 32>& windows_moved, MoveAllWindowsTo move_to)
{
VERIFY(this != &new_window_stack);
move_pinned_windows_to_front();
if (move_to == MoveAllWindowsTo::Front) {
while (auto* window = m_windows.take_first()) {
window->set_window_stack({}, nullptr);
new_window_stack.add(*window);
windows_moved.append(window);
}
} else {
while (auto* window = m_windows.take_last()) {
window->set_window_stack({}, nullptr);
new_window_stack.add_to_back(*window);
windows_moved.append(window);
}
}
m_active_window = nullptr;
m_active_input_window = nullptr;
m_active_input_tracking_window = nullptr;
}
Window* WindowStack::window_at(Gfx::IntPoint const& position, IncludeWindowFrame include_window_frame) const
{
auto result = hit_test(position);
if (!result.has_value())
return nullptr;
if (include_window_frame == IncludeWindowFrame::No && result->is_frame_hit)
return nullptr;
return result->window;
}
Window* WindowStack::highlight_window() const
{
if (auto* window = WindowManager::the().highlight_window(); window && &window->window_stack() == this)
return window;
return nullptr;
}
void WindowStack::set_active_window(Window* window)
{
if (!window)
m_active_window = nullptr;
else
m_active_window = window->make_weak_ptr<Window>();
}
void WindowStack::set_all_occluded(bool occluded)
{
for (auto& window : m_windows) {
if (!WindowManager::is_stationary_window_type(window.type()))
window.set_occluded(occluded);
}
}
Optional<HitTestResult> WindowStack::hit_test(Gfx::IntPoint const& position) const
{
Optional<HitTestResult> result;
WindowManager::the().for_each_visible_window_from_front_to_back([&](Window& window) {
result = window.hit_test(position);
if (result.has_value())
return IterationDecision::Break;
return IterationDecision::Continue;
},
const_cast<WindowStack*>(this));
return result;
}
}
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