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app: use material.Decorations on undecorated platforms

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This patch implements a mechanism for customizing window
decorations.
If a window is configured with app.Decorated(true), then
the widget/material.Decorations are applied. On Wayland,
the option is automatically set when the server does not
provide window decorations.

Server side decorations are no longer requested.
The Decorated flag is set according to the
server's requests.

Wayland is now the default driver for UNIX platforms.

References: https://todo.sr.ht/~eliasnaur/gio/318
Signed-off-by: Pierre Curto <pierre.curto@gmail.com>
This commit is contained in:
Pierre Curto
2022-01-23 21:54:14 +01:00
committed by Elias Naur
parent 90ad0010ec
commit 5ce1e98282
12 changed files with 246 additions and 16 deletions
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app/os_wayland.go
+96 -7
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@@ -64,6 +64,7 @@ extern const struct wl_registry_listener gio_registry_listener;
extern const struct wl_surface_listener gio_surface_listener;
extern const struct xdg_surface_listener gio_xdg_surface_listener;
extern const struct xdg_toplevel_listener gio_xdg_toplevel_listener;
extern const struct zxdg_toplevel_decoration_v1_listener gio_zxdg_toplevel_decoration_v1_listener;
extern const struct xdg_wm_base_listener gio_xdg_wm_base_listener;
extern const struct wl_callback_listener gio_callback_listener;
extern const struct wl_output_listener gio_output_listener;
@@ -149,6 +150,7 @@ type repeatState struct {
type window struct {
w *callbacks
disp *wlDisplay
seat *wlSeat
surf *C.struct_wl_surface
wmSurf *C.struct_xdg_surface
topLvl *C.struct_xdg_toplevel
@@ -188,9 +190,10 @@ type window struct {
newScale bool
scale int
// size is the unscaled window size (unlike config.Size which is scaled).
size image.Point
config Config
wsize image.Point // window config size before going fullscreen
size image.Point
config Config
wsize image.Point // window config size before going fullscreen or maximized
inCompositor bool // window is moving or being resized
wakeups chan struct{}
}
@@ -212,7 +215,7 @@ type wlOutput struct {
}
// callbackMap maps Wayland native handles to corresponding Go
// references. It is necessary because the the Wayland client API
// references. It is necessary because the Wayland client API
// forces the use of callbacks and storing pointers to Go values
// in C is forbidden.
var callbackMap sync.Map
@@ -369,9 +372,8 @@ func (d *wlDisplay) createNativeWindow(options []Option) (*window, error) {
C.xdg_toplevel_add_listener(w.topLvl, &C.gio_xdg_toplevel_listener, unsafe.Pointer(w.surf))
if d.decor != nil {
// Request server side decorations.
w.decor = C.zxdg_decoration_manager_v1_get_toplevel_decoration(d.decor, w.topLvl)
C.zxdg_toplevel_decoration_v1_set_mode(w.decor, C.ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE)
C.zxdg_toplevel_decoration_v1_add_listener(w.decor, &C.gio_zxdg_toplevel_decoration_v1_listener, unsafe.Pointer(w.surf))
}
w.updateOpaqueRegion()
return w, nil
@@ -499,6 +501,24 @@ func gio_onToplevelConfigure(data unsafe.Pointer, topLvl *C.struct_xdg_toplevel,
w.size = image.Pt(int(width), int(height))
w.updateOpaqueRegion()
}
w.needAck = true
}
//export gio_onToplevelDecorationConfigure
func gio_onToplevelDecorationConfigure(data unsafe.Pointer, deco *C.struct_zxdg_toplevel_decoration_v1, mode C.uint32_t) {
w := callbackLoad(data).(*window)
decorated := w.config.Decorated
switch mode {
case C.ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE:
w.config.Decorated = false
case C.ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE:
w.config.Decorated = true
}
if decorated != w.config.Decorated {
w.w.Event(ConfigEvent{Config: w.config})
}
w.needAck = true
w.draw(true)
}
//export gio_onOutputMode
@@ -772,15 +792,22 @@ func gio_onPointerEnter(data unsafe.Pointer, pointer *C.struct_wl_pointer, seria
s := callbackLoad(data).(*wlSeat)
s.serial = serial
w := callbackLoad(unsafe.Pointer(surf)).(*window)
w.seat = s
s.pointerFocus = w
w.setCursor(pointer, serial)
w.lastPos = f32.Point{X: fromFixed(x), Y: fromFixed(y)}
}
//export gio_onPointerLeave
func gio_onPointerLeave(data unsafe.Pointer, p *C.struct_wl_pointer, serial C.uint32_t, surface *C.struct_wl_surface) {
func gio_onPointerLeave(data unsafe.Pointer, p *C.struct_wl_pointer, serial C.uint32_t, surf *C.struct_wl_surface) {
w := callbackLoad(unsafe.Pointer(surf)).(*window)
w.seat = nil
s := callbackLoad(data).(*wlSeat)
s.serial = serial
if w.inCompositor {
w.inCompositor = false
w.w.Event(pointer.Event{Type: pointer.Cancel})
}
}
//export gio_onPointerMotion
@@ -818,6 +845,8 @@ func gio_onPointerButton(data unsafe.Pointer, p *C.struct_wl_pointer, serial, t,
case 0:
w.pointerBtns &^= btn
typ = pointer.Release
// Move or resize gestures no longer applies.
w.inCompositor = false
case 1:
w.pointerBtns |= btn
typ = pointer.Press
@@ -978,6 +1007,9 @@ func (w *window) Configure(options []Option) {
C.xdg_toplevel_set_max_size(w.topLvl, C.int32_t(cnf.MaxSize.X), C.int32_t(cnf.MaxSize.Y))
}
}
if cnf.Decorated != prev.Decorated {
w.config.Decorated = cnf.Decorated
}
if w.config != prev {
w.w.Event(ConfigEvent{Config: w.config})
}
@@ -992,6 +1024,63 @@ func (w *window) setTitle(prev, cnf Config) {
}
}
func (w *window) Perform(actions system.Action) {
walkActions(actions, func(action system.Action) {
switch action {
case system.ActionMinimize:
w.Configure([]Option{Minimized.Option()})
case system.ActionMaximize:
w.Configure([]Option{Maximized.Option()})
case system.ActionUnmaximize:
w.Configure([]Option{Windowed.Option()})
case system.ActionClose:
w.Close()
case system.ActionMove:
w.move()
default:
w.resize(action)
}
})
}
func (w *window) move() {
if !w.inCompositor && w.seat != nil {
w.inCompositor = true
s := w.seat
C.xdg_toplevel_move(w.topLvl, s.seat, s.serial)
}
}
func (w *window) resize(a system.Action) {
if w.inCompositor || w.seat == nil {
return
}
var edge int
switch a {
case system.ActionResizeNorth:
edge = C.XDG_TOPLEVEL_RESIZE_EDGE_TOP
case system.ActionResizeSouth:
edge = C.XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM
case system.ActionResizeEast:
edge = C.XDG_TOPLEVEL_RESIZE_EDGE_LEFT
case system.ActionResizeWest:
edge = C.XDG_TOPLEVEL_RESIZE_EDGE_RIGHT
case system.ActionResizeNorthWest:
edge = C.XDG_TOPLEVEL_RESIZE_EDGE_TOP_LEFT
case system.ActionResizeNorthEast:
edge = C.XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM_LEFT
case system.ActionResizeSouthEast:
edge = C.XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM_RIGHT
case system.ActionResizeSouthWest:
edge = C.XDG_TOPLEVEL_RESIZE_EDGE_TOP_RIGHT
default:
return
}
w.inCompositor = true
s := w.seat
C.xdg_toplevel_resize(w.topLvl, s.seat, s.serial, C.uint32_t(edge))
}
func (w *window) Raise() {
// NB. there is no way for a minimized window to be unminimized.
// https://wayland.app/protocols/xdg-shell#xdg_toplevel:request:set_minimized