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[FancyZones] Dragging a window across monitors transparency fix (#5102)

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This commit is contained in:
Seraphima Zykova
2020-07-22 19:00:03 +03:00
committed by GitHub
parent 761f0a78f4
commit 92c666692d
4 changed files with 76 additions and 72 deletions
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96
src/modules/fancyzones/lib/WindowMoveHandler.cpp
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@@ -79,7 +79,11 @@ public:
bool MoveWindowIntoZoneByDirection(HWND window, DWORD vkCode, bool cycle, winrt::com_ptr<IZoneWindow> zoneWindow);
private:
void UpdateDragState(HWND window) noexcept;
void WarnIfElevationIsRequired(HWND window) noexcept;
void UpdateDragState() noexcept;
void SetWindowTransparency(HWND window) noexcept;
void ResetWindowTransparency() noexcept;
private:
winrt::com_ptr<IFancyZonesSettings> m_settings{};
@@ -94,6 +98,15 @@ private:
bool m_secondaryMouseButtonState{}; // True when secondary mouse button was clicked after window was moved
bool m_shiftKeyState{}; // True when shift key was pressed after window was moved
bool m_ctrlKeyState{}; // True when ctrl key was pressed after window was moved
struct WindowTransparencyProperties
{
HWND draggedWindow = nullptr;
long draggedWindowExstyle = 0;
COLORREF draggedWindowCrKey = RGB(0, 0, 0);
DWORD draggedWindowDwFlags = 0;
BYTE draggedWindowInitialAlpha = 0;
} m_windowTransparencyProperties;
};
WindowMoveHandler::WindowMoveHandler(const winrt::com_ptr<IFancyZonesSettings>& settings, SecondaryMouseButtonsHook* mouseHook, ShiftKeyHook* shiftHook, CtrlKeyHook* ctrlHook) :
@@ -194,13 +207,17 @@ void WindowMoveHandlerPrivate::MoveSizeStart(HWND window, HMONITOR monitor, POIN
m_shiftHook->enable();
m_ctrlHook->enable();
// This updates m_dragEnabled depending on if the shift key is being held down.
UpdateDragState(window);
// This updates m_dragEnabled depending on if the shift key is being held down
UpdateDragState();
// Notifies user if unable to drag elevated window
WarnIfElevationIsRequired(window);
if (m_dragEnabled)
{
m_zoneWindowMoveSize = iter->second;
m_zoneWindowMoveSize->MoveSizeEnter(window);
SetWindowTransparency(m_windowMoveSize);
m_zoneWindowMoveSize->MoveSizeEnter(m_windowMoveSize);
if (m_settings->GetSettings()->showZonesOnAllMonitors)
{
for (auto [keyMonitor, zoneWindow] : zoneWindowMap)
@@ -217,7 +234,7 @@ void WindowMoveHandlerPrivate::MoveSizeStart(HWND window, HMONITOR monitor, POIN
}
else if (m_zoneWindowMoveSize)
{
m_zoneWindowMoveSize->RestoreOriginalTransparency();
ResetWindowTransparency();
m_zoneWindowMoveSize = nullptr;
for (auto [keyMonitor, zoneWindow] : zoneWindowMap)
{
@@ -237,7 +254,7 @@ void WindowMoveHandlerPrivate::MoveSizeUpdate(HMONITOR monitor, POINT const& ptS
}
// This updates m_dragEnabled depending on if the shift key is being held down.
UpdateDragState(m_windowMoveSize);
UpdateDragState();
if (m_zoneWindowMoveSize)
{
@@ -246,12 +263,12 @@ void WindowMoveHandlerPrivate::MoveSizeUpdate(HMONITOR monitor, POINT const& ptS
{
// Drag got disabled, tell it to cancel and hide all windows
m_zoneWindowMoveSize = nullptr;
ResetWindowTransparency();
for (auto [keyMonitor, zoneWindow] : zoneWindowMap)
{
if (zoneWindow)
{
zoneWindow->RestoreOriginalTransparency();
zoneWindow->HideZoneWindow();
}
}
@@ -264,13 +281,12 @@ void WindowMoveHandlerPrivate::MoveSizeUpdate(HMONITOR monitor, POINT const& ptS
if (iter->second != m_zoneWindowMoveSize)
{
// The drag has moved to a different monitor.
m_zoneWindowMoveSize->RestoreOriginalTransparency();
m_zoneWindowMoveSize->ClearSelectedZones();
if (!m_settings->GetSettings()->showZonesOnAllMonitors)
{
m_zoneWindowMoveSize->HideZoneWindow();
}
m_zoneWindowMoveSize = iter->second;
m_zoneWindowMoveSize->MoveSizeEnter(m_windowMoveSize);
}
@@ -302,14 +318,11 @@ void WindowMoveHandlerPrivate::MoveSizeEnd(HWND window, POINT const& ptScreen, c
m_shiftHook->disable();
m_ctrlHook->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);
ResetWindowTransparency();
zoneWindow->MoveSizeEnd(m_windowMoveSize, ptScreen);
}
else
{
@@ -345,6 +358,11 @@ void WindowMoveHandlerPrivate::MoveSizeEnd(HWND window, POINT const& ptScreen, c
}
::RemoveProp(window, MULTI_ZONE_STAMP);
}
m_inMoveSize = false;
m_dragEnabled = false;
m_secondaryMouseButtonState = false;
m_windowMoveSize = nullptr;
// Also, hide all windows (regardless of settings)
for (auto [keyMonitor, zoneWindow] : zoneWindowMap)
@@ -369,17 +387,8 @@ bool WindowMoveHandlerPrivate::MoveWindowIntoZoneByDirection(HWND window, DWORD
return zoneWindow && zoneWindow->MoveWindowIntoZoneByDirection(window, vkCode, cycle);
}
void WindowMoveHandlerPrivate::UpdateDragState(HWND window) noexcept
void WindowMoveHandlerPrivate::WarnIfElevationIsRequired(HWND window) noexcept
{
if (m_settings->GetSettings()->shiftDrag)
{
m_dragEnabled = (m_shiftKeyState ^ m_secondaryMouseButtonState);
}
else
{
m_dragEnabled = !(m_shiftKeyState ^ m_secondaryMouseButtonState);
}
static bool warning_shown = false;
if (!is_process_elevated() && IsProcessOfWindowElevated(window))
{
@@ -395,3 +404,42 @@ void WindowMoveHandlerPrivate::UpdateDragState(HWND window) noexcept
}
}
}
void WindowMoveHandlerPrivate::UpdateDragState() noexcept
{
if (m_settings->GetSettings()->shiftDrag)
{
m_dragEnabled = (m_shiftKeyState ^ m_secondaryMouseButtonState);
}
else
{
m_dragEnabled = !(m_shiftKeyState ^ m_secondaryMouseButtonState);
}
}
void WindowMoveHandlerPrivate::SetWindowTransparency(HWND window) noexcept
{
if (m_settings->GetSettings()->makeDraggedWindowTransparent)
{
m_windowTransparencyProperties.draggedWindowExstyle = GetWindowLong(window, GWL_EXSTYLE);
m_windowTransparencyProperties.draggedWindow = window;
SetWindowLong(window,
GWL_EXSTYLE,
m_windowTransparencyProperties.draggedWindowExstyle | WS_EX_LAYERED);
GetLayeredWindowAttributes(window, &m_windowTransparencyProperties.draggedWindowCrKey, &m_windowTransparencyProperties.draggedWindowInitialAlpha, &m_windowTransparencyProperties.draggedWindowDwFlags);
SetLayeredWindowAttributes(window, 0, (255 * 50) / 100, LWA_ALPHA);
}
}
void WindowMoveHandlerPrivate::ResetWindowTransparency() noexcept
{
if (m_settings->GetSettings()->makeDraggedWindowTransparent && m_windowTransparencyProperties.draggedWindow != nullptr)
{
SetLayeredWindowAttributes(m_windowTransparencyProperties.draggedWindow, m_windowTransparencyProperties.draggedWindowCrKey, m_windowTransparencyProperties.draggedWindowInitialAlpha, m_windowTransparencyProperties.draggedWindowDwFlags);
SetWindowLong(m_windowTransparencyProperties.draggedWindow, GWL_EXSTYLE, m_windowTransparencyProperties.draggedWindowExstyle);
m_windowTransparencyProperties.draggedWindow = nullptr;
}
}