PowerToys/src/modules/fancyzones/lib/WindowMoveHandler.cpp

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#include "pch.h"
#include "WindowMoveHandler.h"
#include <common/notifications.h>
#include <common/notifications/fancyzones_notifications.h>
#include <common/window_helpers.h>
#include "lib/Settings.h"
#include "lib/ZoneWindow.h"
#include "lib/util.h"
#include "VirtualDesktopUtils.h"
#include "lib/SecondaryMouseButtonsHook.h"
extern "C" IMAGE_DOS_HEADER __ImageBase;
namespace WindowMoveHandlerUtils
{
bool IsCursorTypeIndicatingSizeEvent()
{
CURSORINFO cursorInfo = { 0 };
cursorInfo.cbSize = sizeof(cursorInfo);
if (::GetCursorInfo(&cursorInfo))
{
if (::LoadCursor(NULL, IDC_SIZENS) == cursorInfo.hCursor)
{
return true;
}
if (::LoadCursor(NULL, IDC_SIZEWE) == cursorInfo.hCursor)
{
return true;
}
if (::LoadCursor(NULL, IDC_SIZENESW) == cursorInfo.hCursor)
{
return true;
}
if (::LoadCursor(NULL, IDC_SIZENWSE) == cursorInfo.hCursor)
{
return true;
}
}
return false;
}
}
class WindowMoveHandlerPrivate
{
public:
WindowMoveHandlerPrivate(const winrt::com_ptr<IFancyZonesSettings>& settings, SecondaryMouseButtonsHook* mouseHook) :
m_settings(settings),
m_mouseHook(mouseHook){};
bool IsDragEnabled() const noexcept
{
return m_dragEnabled;
}
bool InMoveSize() const noexcept
{
return m_inMoveSize;
}
void OnMouseDown() noexcept;
void MoveSizeStart(HWND window, HMONITOR monitor, POINT const& ptScreen, const std::unordered_map<HMONITOR, winrt::com_ptr<IZoneWindow>>& zoneWindowMap) noexcept;
void MoveSizeUpdate(HMONITOR monitor, POINT const& ptScreen, const std::unordered_map<HMONITOR, winrt::com_ptr<IZoneWindow>>& zoneWindowMap) noexcept;
void MoveSizeEnd(HWND window, POINT const& ptScreen, const std::unordered_map<HMONITOR, winrt::com_ptr<IZoneWindow>>& zoneWindowMap) noexcept;
void MoveWindowIntoZoneByIndexSet(HWND window, const std::vector<int>& indexSet, winrt::com_ptr<IZoneWindow> zoneWindow) noexcept;
bool MoveWindowIntoZoneByDirection(HWND window, DWORD vkCode, bool cycle, winrt::com_ptr<IZoneWindow> zoneWindow);
private:
void UpdateDragState(HWND window) noexcept;
private:
winrt::com_ptr<IFancyZonesSettings> m_settings{};
SecondaryMouseButtonsHook* m_mouseHook{};
HWND m_windowMoveSize{}; // The window that is being moved/sized
bool m_inMoveSize{}; // Whether or not a move/size operation is currently active
winrt::com_ptr<IZoneWindow> m_zoneWindowMoveSize; // "Active" ZoneWindow, where the move/size is happening. Will update as drag moves between monitors.
bool m_dragEnabled{}; // True if we should be showing zone hints while dragging
bool m_secondaryMouseButtonState{}; // True when secondary mouse button was clicked after windows was moved;
};
WindowMoveHandler::WindowMoveHandler(const winrt::com_ptr<IFancyZonesSettings>& settings, SecondaryMouseButtonsHook* mouseHook) :
pimpl(new WindowMoveHandlerPrivate(settings, mouseHook)) {}
WindowMoveHandler::~WindowMoveHandler()
{
delete pimpl;
}
bool WindowMoveHandler::InMoveSize() const noexcept
{
return pimpl->InMoveSize();
}
bool WindowMoveHandler::IsDragEnabled() const noexcept
{
return pimpl->IsDragEnabled();
}
void WindowMoveHandler::OnMouseDown() noexcept
{
pimpl->OnMouseDown();
}
void WindowMoveHandler::MoveSizeStart(HWND window, HMONITOR monitor, POINT const& ptScreen, const std::unordered_map<HMONITOR, winrt::com_ptr<IZoneWindow>>& zoneWindowMap) noexcept
{
pimpl->MoveSizeStart(window, monitor, ptScreen, zoneWindowMap);
}
void WindowMoveHandler::MoveSizeUpdate(HMONITOR monitor, POINT const& ptScreen, const std::unordered_map<HMONITOR, winrt::com_ptr<IZoneWindow>>& zoneWindowMap) noexcept
{
pimpl->MoveSizeUpdate(monitor, ptScreen, zoneWindowMap);
}
void WindowMoveHandler::MoveSizeEnd(HWND window, POINT const& ptScreen, const std::unordered_map<HMONITOR, winrt::com_ptr<IZoneWindow>>& zoneWindowMap) noexcept
{
pimpl->MoveSizeEnd(window, ptScreen, zoneWindowMap);
}
void WindowMoveHandler::MoveWindowIntoZoneByIndexSet(HWND window, const std::vector<int>& indexSet, winrt::com_ptr<IZoneWindow> zoneWindow) noexcept
{
pimpl->MoveWindowIntoZoneByIndexSet(window, indexSet, zoneWindow);
}
bool WindowMoveHandler::MoveWindowIntoZoneByDirection(HWND window, DWORD vkCode, bool cycle, winrt::com_ptr<IZoneWindow> zoneWindow)
{
return pimpl->MoveWindowIntoZoneByDirection(window, vkCode, cycle, zoneWindow);
}
void WindowMoveHandlerPrivate::OnMouseDown() noexcept
{
m_secondaryMouseButtonState = !m_secondaryMouseButtonState;
}
void WindowMoveHandlerPrivate::MoveSizeStart(HWND window, HMONITOR monitor, POINT const& ptScreen, const std::unordered_map<HMONITOR, winrt::com_ptr<IZoneWindow>>& zoneWindowMap) noexcept
{
if (!IsInterestingWindow(window, m_settings->GetSettings()->excludedAppsArray) || WindowMoveHandlerUtils::IsCursorTypeIndicatingSizeEvent())
{
return;
}
m_inMoveSize = true;
auto iter = zoneWindowMap.find(monitor);
if (iter == end(zoneWindowMap))
{
return;
}
m_windowMoveSize = window;
if (m_settings->GetSettings()->mouseSwitch)
{
m_mouseHook->enable();
}
// This updates m_dragEnabled depending on if the shift key is being held down.
UpdateDragState(window);
if (m_dragEnabled)
{
m_zoneWindowMoveSize = iter->second;
m_zoneWindowMoveSize->MoveSizeEnter(window);
if (m_settings->GetSettings()->showZonesOnAllMonitors)
{
for (auto [keyMonitor, zoneWindow] : zoneWindowMap)
{
// Skip calling ShowZoneWindow for iter->second (m_zoneWindowMoveSize) since it
// was already called in MoveSizeEnter
const bool moveSizeEnterCalled = zoneWindow == m_zoneWindowMoveSize;
if (zoneWindow && !moveSizeEnterCalled)
{
zoneWindow->ShowZoneWindow();
}
}
}
}
else if (m_zoneWindowMoveSize)
{
m_zoneWindowMoveSize->RestoreOriginalTransparency();
m_zoneWindowMoveSize = nullptr;
for (auto [keyMonitor, zoneWindow] : zoneWindowMap)
{
if (zoneWindow)
{
zoneWindow->HideZoneWindow();
}
}
}
}
void WindowMoveHandlerPrivate::MoveSizeUpdate(HMONITOR monitor, POINT const& ptScreen, const std::unordered_map<HMONITOR, winrt::com_ptr<IZoneWindow>>& zoneWindowMap) noexcept
{
if (!m_inMoveSize)
{
return;
}
// This updates m_dragEnabled depending on if the shift key is being held down.
UpdateDragState(m_windowMoveSize);
if (m_zoneWindowMoveSize)
{
// Update the ZoneWindow already handling move/size
if (!m_dragEnabled)
{
// Drag got disabled, tell it to cancel and hide all windows
m_zoneWindowMoveSize = nullptr;
for (auto [keyMonitor, zoneWindow] : zoneWindowMap)
{
if (zoneWindow)
{
zoneWindow->RestoreOriginalTransparency();
zoneWindow->HideZoneWindow();
}
}
}
else
{
auto iter = zoneWindowMap.find(monitor);
if (iter != zoneWindowMap.end())
{
if (iter->second != m_zoneWindowMoveSize)
{
// The drag has moved to a different monitor.
m_zoneWindowMoveSize->RestoreOriginalTransparency();
if (!m_settings->GetSettings()->showZonesOnAllMonitors)
{
m_zoneWindowMoveSize->HideZoneWindow();
}
m_zoneWindowMoveSize = iter->second;
m_zoneWindowMoveSize->MoveSizeEnter(m_windowMoveSize);
}
for (auto [keyMonitor, zoneWindow] : zoneWindowMap)
{
zoneWindow->MoveSizeUpdate(ptScreen, m_dragEnabled);
}
}
}
}
else if (m_dragEnabled)
{
// We'll get here if the user presses/releases shift while dragging.
// Restart the drag on the ZoneWindow that m_windowMoveSize is on
MoveSizeStart(m_windowMoveSize, monitor, ptScreen, zoneWindowMap);
MoveSizeUpdate(monitor, ptScreen, zoneWindowMap);
}
}
void WindowMoveHandlerPrivate::MoveSizeEnd(HWND window, POINT const& ptScreen, const std::unordered_map<HMONITOR, winrt::com_ptr<IZoneWindow>>& zoneWindowMap) noexcept
{
if (window != m_windowMoveSize && !IsInterestingWindow(window, m_settings->GetSettings()->excludedAppsArray))
{
return;
}
m_mouseHook->disable();
m_inMoveSize = false;
m_dragEnabled = false;
m_secondaryMouseButtonState = false;
m_windowMoveSize = nullptr;
if (m_zoneWindowMoveSize)
{
auto zoneWindow = std::move(m_zoneWindowMoveSize);
zoneWindow->MoveSizeEnd(window, ptScreen);
}
else
{
::RemoveProp(window, MULTI_ZONE_STAMP);
auto monitor = MonitorFromWindow(window, MONITOR_DEFAULTTONULL);
if (monitor)
{
auto zoneWindow = zoneWindowMap.find(monitor);
if (zoneWindow != zoneWindowMap.end())
{
const auto zoneWindowPtr = zoneWindow->second;
const auto activeZoneSet = zoneWindowPtr->ActiveZoneSet();
if (activeZoneSet)
{
wil::unique_cotaskmem_string guidString;
if (SUCCEEDED_LOG(StringFromCLSID(activeZoneSet->Id(), &guidString)))
{
JSONHelpers::FancyZonesDataInstance().RemoveAppLastZone(window, zoneWindowPtr->UniqueId(), guidString.get());
}
}
}
}
}
// Also, hide all windows (regardless of settings)
for (auto [keyMonitor, zoneWindow] : zoneWindowMap)
{
if (zoneWindow)
{
zoneWindow->HideZoneWindow();
}
}
}
void WindowMoveHandlerPrivate::MoveWindowIntoZoneByIndexSet(HWND window, const std::vector<int>& indexSet, winrt::com_ptr<IZoneWindow> zoneWindow) noexcept
{
if (window != m_windowMoveSize)
{
zoneWindow->MoveWindowIntoZoneByIndexSet(window, indexSet);
}
}
bool WindowMoveHandlerPrivate::MoveWindowIntoZoneByDirection(HWND window, DWORD vkCode, bool cycle, winrt::com_ptr<IZoneWindow> zoneWindow)
{
return zoneWindow && zoneWindow->MoveWindowIntoZoneByDirection(window, vkCode, cycle);
}
void WindowMoveHandlerPrivate::UpdateDragState(HWND window) noexcept
{
const bool shift = GetAsyncKeyState(VK_SHIFT) & 0x8000;
if (m_settings->GetSettings()->shiftDrag)
{
m_dragEnabled = (shift ^ m_secondaryMouseButtonState);
}
else
{
m_dragEnabled = !(shift ^ m_secondaryMouseButtonState);
}
static bool warning_shown = false;
if (!is_process_elevated() && IsProcessOfWindowElevated(window))
{
m_dragEnabled = false;
if (!warning_shown && !is_cant_drag_elevated_warning_disabled())
{
std::vector<notifications::action_t> actions = {
notifications::link_button{ GET_RESOURCE_STRING(IDS_CANT_DRAG_ELEVATED_LEARN_MORE), L"https://aka.ms/powertoysDetectedElevatedHelp" },
notifications::link_button{ GET_RESOURCE_STRING(IDS_CANT_DRAG_ELEVATED_DIALOG_DONT_SHOW_AGAIN), L"powertoys://cant_drag_elevated_disable/" }
};
notifications::show_toast_with_activations(GET_RESOURCE_STRING(IDS_CANT_DRAG_ELEVATED), {}, std::move(actions));
warning_shown = true;
}
}
}