Method recordPref

core/windowgeometry.go:233–280

recordPref records current state of window as preference

(win *renderWindow)

// recordPref records current state of window as preference
func (ws *windowGeometrySaver) recordPref(win *renderWindow) {
	if !win.isVisible() {
		return
	}
	wsz := win.SystemWindow.Size()
	if wsz == (image.Point{}) {
		if DebugSettings.WinGeomTrace {
			log.Printf("WindowGeometry: RecordPref: NOT storing null size for win: %v\n", win.name)
		}
		return
	}
	pos := win.SystemWindow.Position()
	if pos.X == -32000 || pos.Y == -32000 { // windows badness
		if DebugSettings.WinGeomTrace {
			log.Printf("WindowGeometry: RecordPref: NOT storing very negative pos: %v for win: %v\n", pos, win.name)
		}
		return
	}
	ws.mu.Lock()
	if ws.settingNoSave {
		if DebugSettings.WinGeomTrace {
			log.Printf("WindowGeometry: RecordPref: SettingNoSave so NOT storing for win: %v\n", win.name)
		}
		ws.mu.Unlock()
		return
	}
	ws.init()

	winName := ws.windowName(win.title)
	sc := win.SystemWindow.Screen()
	wgr := windowGeometry{DPI: win.logicalDPI(), DPR: sc.DevicePixelRatio, Fullscreen: win.SystemWindow.Is(system.Fullscreen)}
	wgr.setPos(pos)
	wgr.setSize(wsz)

	if ws.cache[winName] == nil {
		ws.cache[winName] = make(map[string]windowGeometry)
	}
	ws.cache[winName][sc.Name] = wgr
	if ws.saveTimer == nil {
		ws.saveTimer = time.AfterFunc(time.Duration(ws.saveDelay), func() {
			ws.mu.Lock()
			ws.saveCached()
			ws.saveTimer = nil
			ws.mu.Unlock()
		})
	}
	ws.mu.Unlock()
}

// saveCached saves the cached prefs -- called after timer delay,
// under the Mu.Lock