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app: added support for fullscreen mode

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The option field WindowMode allows changing the window mode of an application in either Windowed or Fullscreen.
Only macOS, Windows and X11 platforms are currently supported.

Updates gio#89.

Signed-off-by: pierre <pierre.curto@gmail.com>
This commit is contained in:
pierre
2021-03-23 15:39:25 +01:00
committed by Elias Naur
parent bc2c3db43e
commit 238dd1aa86
7 changed files with 171 additions and 1 deletions
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app/internal/windows/windows.go
+69
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@@ -54,6 +54,23 @@ type MinMaxInfo struct {
PtMaxTrackSize Point
}
type WindowPlacement struct {
length uint32
flags uint32
showCmd uint32
ptMinPosition Point
ptMaxPosition Point
rcNormalPosition Rect
rcDevice Rect
}
type MonitorInfo struct {
cbSize uint32
Monitor Rect
WorkArea Rect
Flags uint32
}
const (
TRUE = 1
@@ -63,6 +80,9 @@ const (
CW_USEDEFAULT = -2147483648
GWL_STYLE = ^(uint32(16) - 1) // -16
HWND_TOPMOST = ^(uint32(1) - 1) // -1
HTCLIENT = 1
IDC_ARROW = 32512
@@ -87,6 +107,12 @@ const (
SW_SHOWDEFAULT = 10
SWP_FRAMECHANGED = 0x0020
SWP_NOMOVE = 0x0002
SWP_NOOWNERZORDER = 0x0200
SWP_NOSIZE = 0x0001
SWP_NOZORDER = 0x0004
USER_TIMER_MINIMUM = 0x0000000A
VK_CONTROL = 0x11
@@ -237,10 +263,14 @@ var (
_GetKeyState = user32.NewProc("GetKeyState")
_GetMessage = user32.NewProc("GetMessageW")
_GetMessageTime = user32.NewProc("GetMessageTime")
_GetMonitorInfo = user32.NewProc("GetMonitorInfoW")
_GetWindowLong = user32.NewProc("GetWindowLongPtrW")
_GetWindowPlacement = user32.NewProc("GetWindowPlacement")
_KillTimer = user32.NewProc("KillTimer")
_LoadCursor = user32.NewProc("LoadCursorW")
_LoadImage = user32.NewProc("LoadImageW")
_MonitorFromPoint = user32.NewProc("MonitorFromPoint")
_MonitorFromWindow = user32.NewProc("MonitorFromWindow")
_MsgWaitForMultipleObjectsEx = user32.NewProc("MsgWaitForMultipleObjectsEx")
_OpenClipboard = user32.NewProc("OpenClipboard")
_PeekMessage = user32.NewProc("PeekMessageW")
@@ -258,6 +288,9 @@ var (
_SetFocus = user32.NewProc("SetFocus")
_SetProcessDPIAware = user32.NewProc("SetProcessDPIAware")
_SetTimer = user32.NewProc("SetTimer")
_SetWindowLong = user32.NewProc("SetWindowLongPtrW")
_SetWindowPos = user32.NewProc("SetWindowPos")
_SetWindowPlacement = user32.NewProc("SetWindowPlacement")
_TranslateMessage = user32.NewProc("TranslateMessage")
_UnregisterClass = user32.NewProc("UnregisterClassW")
_UpdateWindow = user32.NewProc("UpdateWindow")
@@ -417,6 +450,42 @@ func GetWindowDPI(hwnd syscall.Handle) int {
}
}
func GetWindowPlacement(hwnd syscall.Handle) *WindowPlacement {
var wp WindowPlacement
wp.length = uint32(unsafe.Sizeof(wp))
_GetWindowPlacement.Call(uintptr(hwnd), uintptr(unsafe.Pointer(&wp)))
return &wp
}
func GetMonitorInfo(hwnd syscall.Handle) MonitorInfo {
var mi MonitorInfo
mi.cbSize = uint32(unsafe.Sizeof(mi))
v, _, _ := _MonitorFromWindow.Call(uintptr(hwnd), MONITOR_DEFAULTTOPRIMARY)
_GetMonitorInfo.Call(v, uintptr(unsafe.Pointer(&mi)))
return mi
}
func GetWindowLong(hwnd syscall.Handle) (style uintptr) {
style, _, _ = _GetWindowLong.Call(uintptr(hwnd), uintptr(GWL_STYLE))
return
}
func SetWindowLong(hwnd syscall.Handle, idx uint32, style uintptr) {
_SetWindowLong.Call(uintptr(hwnd), uintptr(idx), style)
}
func SetWindowPlacement(hwnd syscall.Handle, wp *WindowPlacement) {
_SetWindowPlacement.Call(uintptr(hwnd), uintptr(unsafe.Pointer(wp)))
}
func SetWindowPos(hwnd syscall.Handle, hwndInsertAfter uint32, x, y, dx, dy int32, style uintptr) {
_SetWindowPos.Call(uintptr(hwnd), uintptr(hwndInsertAfter),
uintptr(x), uintptr(y),
uintptr(dx), uintptr(dy),
style,
)
}
func GlobalAlloc(size int) (syscall.Handle, error) {
r, _, err := _GlobalAlloc.Call(GHND, uintptr(size))
if r == 0 {