github.com/utopiagio/gio@v0.0.8/io/system/decoration.go (about)

     1  package system
     2  
     3  import (
     4  	"strings"
     5  
     6  	"github.com/utopiagio/gio/internal/ops"
     7  	"github.com/utopiagio/gio/op"
     8  )
     9  
    10  // ActionAreaOp makes the current clip area available for
    11  // system gestures.
    12  //
    13  // Note: only ActionMove is supported.
    14  type ActionInputOp Action
    15  
    16  // Action is a set of window decoration actions.
    17  type Action uint
    18  
    19  const (
    20  	// ActionMinimize minimizes a window.
    21  	ActionMinimize Action = 1 << iota
    22  	// ActionMaximize maximizes a window.
    23  	ActionMaximize
    24  	// ActionUnmaximize restores a maximized window.
    25  	ActionUnmaximize
    26  	// ActionFullscreen makes a window fullscreen.
    27  	ActionFullscreen
    28  	// ActionRaise requests that the platform bring this window to the top of all open windows.
    29  	// Some platforms do not allow this except under certain circumstances, such as when
    30  	// a window from the same application already has focus. If the platform does not
    31  	// support it, this method will do nothing.
    32  	ActionRaise
    33  	// ActionCenter centers the window on the screen.
    34  	// It is ignored in Fullscreen mode and on Wayland.
    35  	ActionCenter
    36  	// ActionClose closes a window.
    37  	// Only applicable on macOS, Windows, X11 and Wayland.
    38  	ActionClose
    39  	// ActionMove moves a window directed by the user.
    40  	ActionMove
    41  )
    42  
    43  func (op ActionInputOp) Add(o *op.Ops) {
    44  	data := ops.Write(&o.Internal, ops.TypeActionInputLen)
    45  	data[0] = byte(ops.TypeActionInput)
    46  	data[1] = byte(op)
    47  }
    48  
    49  func (a Action) String() string {
    50  	var buf strings.Builder
    51  	for b := Action(1); a != 0; b <<= 1 {
    52  		if a&b != 0 {
    53  			if buf.Len() > 0 {
    54  				buf.WriteByte('|')
    55  			}
    56  			buf.WriteString(b.string())
    57  			a &^= b
    58  		}
    59  	}
    60  	return buf.String()
    61  }
    62  
    63  func (a Action) string() string {
    64  	switch a {
    65  	case ActionMinimize:
    66  		return "ActionMinimize"
    67  	case ActionMaximize:
    68  		return "ActionMaximize"
    69  	case ActionUnmaximize:
    70  		return "ActionUnmaximize"
    71  	case ActionClose:
    72  		return "ActionClose"
    73  	case ActionMove:
    74  		return "ActionMove"
    75  	}
    76  	return ""
    77  }