691 lines
19 KiB
Go
691 lines
19 KiB
Go
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// Package screensaver is the X client API for the MIT-SCREEN-SAVER extension.
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package screensaver
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// This file is automatically generated from screensaver.xml. Edit at your peril!
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import (
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"github.com/jezek/xgb"
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"github.com/jezek/xgb/xproto"
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)
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// Init must be called before using the MIT-SCREEN-SAVER extension.
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func Init(c *xgb.Conn) error {
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reply, err := xproto.QueryExtension(c, 16, "MIT-SCREEN-SAVER").Reply()
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switch {
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case err != nil:
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return err
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case !reply.Present:
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return xgb.Errorf("No extension named MIT-SCREEN-SAVER could be found on on the server.")
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}
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c.ExtLock.Lock()
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c.Extensions["MIT-SCREEN-SAVER"] = reply.MajorOpcode
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c.ExtLock.Unlock()
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for evNum, fun := range xgb.NewExtEventFuncs["MIT-SCREEN-SAVER"] {
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xgb.NewEventFuncs[int(reply.FirstEvent)+evNum] = fun
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}
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for errNum, fun := range xgb.NewExtErrorFuncs["MIT-SCREEN-SAVER"] {
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xgb.NewErrorFuncs[int(reply.FirstError)+errNum] = fun
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}
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return nil
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}
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func init() {
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xgb.NewExtEventFuncs["MIT-SCREEN-SAVER"] = make(map[int]xgb.NewEventFun)
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xgb.NewExtErrorFuncs["MIT-SCREEN-SAVER"] = make(map[int]xgb.NewErrorFun)
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}
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const (
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EventNotifyMask = 1
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EventCycleMask = 2
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)
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const (
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KindBlanked = 0
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KindInternal = 1
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KindExternal = 2
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)
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// Notify is the event number for a NotifyEvent.
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const Notify = 0
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type NotifyEvent struct {
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Sequence uint16
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State byte
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Time xproto.Timestamp
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Root xproto.Window
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Window xproto.Window
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Kind byte
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Forced bool
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// padding: 14 bytes
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}
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// NotifyEventNew constructs a NotifyEvent value that implements xgb.Event from a byte slice.
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func NotifyEventNew(buf []byte) xgb.Event {
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v := NotifyEvent{}
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b := 1 // don't read event number
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v.State = buf[b]
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b += 1
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v.Sequence = xgb.Get16(buf[b:])
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b += 2
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v.Time = xproto.Timestamp(xgb.Get32(buf[b:]))
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b += 4
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v.Root = xproto.Window(xgb.Get32(buf[b:]))
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b += 4
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v.Window = xproto.Window(xgb.Get32(buf[b:]))
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b += 4
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v.Kind = buf[b]
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b += 1
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if buf[b] == 1 {
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v.Forced = true
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} else {
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v.Forced = false
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}
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b += 1
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b += 14 // padding
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return v
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}
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// Bytes writes a NotifyEvent value to a byte slice.
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func (v NotifyEvent) Bytes() []byte {
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buf := make([]byte, 32)
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b := 0
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// write event number
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buf[b] = 0
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b += 1
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buf[b] = v.State
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b += 1
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b += 2 // skip sequence number
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xgb.Put32(buf[b:], uint32(v.Time))
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b += 4
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xgb.Put32(buf[b:], uint32(v.Root))
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b += 4
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xgb.Put32(buf[b:], uint32(v.Window))
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b += 4
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buf[b] = v.Kind
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b += 1
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if v.Forced {
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buf[b] = 1
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} else {
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buf[b] = 0
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}
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b += 1
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b += 14 // padding
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return buf
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}
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// SequenceId returns the sequence id attached to the Notify event.
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// Events without a sequence number (KeymapNotify) return 0.
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// This is mostly used internally.
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func (v NotifyEvent) SequenceId() uint16 {
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return v.Sequence
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}
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// String is a rudimentary string representation of NotifyEvent.
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func (v NotifyEvent) String() string {
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fieldVals := make([]string, 0, 7)
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fieldVals = append(fieldVals, xgb.Sprintf("Sequence: %d", v.Sequence))
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fieldVals = append(fieldVals, xgb.Sprintf("State: %d", v.State))
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fieldVals = append(fieldVals, xgb.Sprintf("Time: %d", v.Time))
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fieldVals = append(fieldVals, xgb.Sprintf("Root: %d", v.Root))
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fieldVals = append(fieldVals, xgb.Sprintf("Window: %d", v.Window))
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fieldVals = append(fieldVals, xgb.Sprintf("Kind: %d", v.Kind))
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fieldVals = append(fieldVals, xgb.Sprintf("Forced: %t", v.Forced))
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return "Notify {" + xgb.StringsJoin(fieldVals, ", ") + "}"
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}
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func init() {
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xgb.NewExtEventFuncs["MIT-SCREEN-SAVER"][0] = NotifyEventNew
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}
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const (
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StateOff = 0
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StateOn = 1
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StateCycle = 2
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StateDisabled = 3
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)
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// Skipping definition for base type 'Bool'
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// Skipping definition for base type 'Byte'
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// Skipping definition for base type 'Card8'
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// Skipping definition for base type 'Char'
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// Skipping definition for base type 'Void'
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// Skipping definition for base type 'Double'
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// Skipping definition for base type 'Float'
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// Skipping definition for base type 'Int16'
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// Skipping definition for base type 'Int32'
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// Skipping definition for base type 'Int8'
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// Skipping definition for base type 'Card16'
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// Skipping definition for base type 'Card32'
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// QueryInfoCookie is a cookie used only for QueryInfo requests.
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type QueryInfoCookie struct {
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*xgb.Cookie
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}
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// QueryInfo sends a checked request.
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// If an error occurs, it will be returned with the reply by calling QueryInfoCookie.Reply()
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func QueryInfo(c *xgb.Conn, Drawable xproto.Drawable) QueryInfoCookie {
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c.ExtLock.RLock()
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defer c.ExtLock.RUnlock()
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if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
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panic("Cannot issue request 'QueryInfo' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
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}
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cookie := c.NewCookie(true, true)
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c.NewRequest(queryInfoRequest(c, Drawable), cookie)
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return QueryInfoCookie{cookie}
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}
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// QueryInfoUnchecked sends an unchecked request.
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// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
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func QueryInfoUnchecked(c *xgb.Conn, Drawable xproto.Drawable) QueryInfoCookie {
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c.ExtLock.RLock()
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defer c.ExtLock.RUnlock()
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if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
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panic("Cannot issue request 'QueryInfo' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
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}
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cookie := c.NewCookie(false, true)
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c.NewRequest(queryInfoRequest(c, Drawable), cookie)
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return QueryInfoCookie{cookie}
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}
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// QueryInfoReply represents the data returned from a QueryInfo request.
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type QueryInfoReply struct {
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Sequence uint16 // sequence number of the request for this reply
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Length uint32 // number of bytes in this reply
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State byte
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SaverWindow xproto.Window
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MsUntilServer uint32
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MsSinceUserInput uint32
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EventMask uint32
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Kind byte
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// padding: 7 bytes
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}
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// Reply blocks and returns the reply data for a QueryInfo request.
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func (cook QueryInfoCookie) Reply() (*QueryInfoReply, error) {
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buf, err := cook.Cookie.Reply()
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if err != nil {
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return nil, err
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}
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if buf == nil {
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return nil, nil
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}
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return queryInfoReply(buf), nil
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}
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// queryInfoReply reads a byte slice into a QueryInfoReply value.
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func queryInfoReply(buf []byte) *QueryInfoReply {
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v := new(QueryInfoReply)
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b := 1 // skip reply determinant
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v.State = buf[b]
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b += 1
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v.Sequence = xgb.Get16(buf[b:])
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b += 2
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v.Length = xgb.Get32(buf[b:]) // 4-byte units
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b += 4
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v.SaverWindow = xproto.Window(xgb.Get32(buf[b:]))
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b += 4
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v.MsUntilServer = xgb.Get32(buf[b:])
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b += 4
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v.MsSinceUserInput = xgb.Get32(buf[b:])
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b += 4
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v.EventMask = xgb.Get32(buf[b:])
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b += 4
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v.Kind = buf[b]
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b += 1
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b += 7 // padding
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return v
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}
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// Write request to wire for QueryInfo
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// queryInfoRequest writes a QueryInfo request to a byte slice.
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func queryInfoRequest(c *xgb.Conn, Drawable xproto.Drawable) []byte {
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size := 8
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b := 0
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buf := make([]byte, size)
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c.ExtLock.RLock()
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buf[b] = c.Extensions["MIT-SCREEN-SAVER"]
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c.ExtLock.RUnlock()
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b += 1
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buf[b] = 1 // request opcode
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b += 1
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xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units
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b += 2
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xgb.Put32(buf[b:], uint32(Drawable))
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b += 4
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return buf
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}
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// QueryVersionCookie is a cookie used only for QueryVersion requests.
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type QueryVersionCookie struct {
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*xgb.Cookie
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}
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// QueryVersion sends a checked request.
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// If an error occurs, it will be returned with the reply by calling QueryVersionCookie.Reply()
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func QueryVersion(c *xgb.Conn, ClientMajorVersion byte, ClientMinorVersion byte) QueryVersionCookie {
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c.ExtLock.RLock()
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defer c.ExtLock.RUnlock()
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if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
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panic("Cannot issue request 'QueryVersion' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
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}
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cookie := c.NewCookie(true, true)
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c.NewRequest(queryVersionRequest(c, ClientMajorVersion, ClientMinorVersion), cookie)
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return QueryVersionCookie{cookie}
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}
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// QueryVersionUnchecked sends an unchecked request.
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// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
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func QueryVersionUnchecked(c *xgb.Conn, ClientMajorVersion byte, ClientMinorVersion byte) QueryVersionCookie {
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c.ExtLock.RLock()
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defer c.ExtLock.RUnlock()
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if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
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panic("Cannot issue request 'QueryVersion' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
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}
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cookie := c.NewCookie(false, true)
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c.NewRequest(queryVersionRequest(c, ClientMajorVersion, ClientMinorVersion), cookie)
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return QueryVersionCookie{cookie}
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}
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// QueryVersionReply represents the data returned from a QueryVersion request.
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type QueryVersionReply struct {
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Sequence uint16 // sequence number of the request for this reply
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Length uint32 // number of bytes in this reply
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// padding: 1 bytes
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ServerMajorVersion uint16
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ServerMinorVersion uint16
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// padding: 20 bytes
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}
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// Reply blocks and returns the reply data for a QueryVersion request.
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func (cook QueryVersionCookie) Reply() (*QueryVersionReply, error) {
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buf, err := cook.Cookie.Reply()
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if err != nil {
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return nil, err
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}
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if buf == nil {
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return nil, nil
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}
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return queryVersionReply(buf), nil
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}
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// queryVersionReply reads a byte slice into a QueryVersionReply value.
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func queryVersionReply(buf []byte) *QueryVersionReply {
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v := new(QueryVersionReply)
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b := 1 // skip reply determinant
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b += 1 // padding
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v.Sequence = xgb.Get16(buf[b:])
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b += 2
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v.Length = xgb.Get32(buf[b:]) // 4-byte units
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b += 4
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v.ServerMajorVersion = xgb.Get16(buf[b:])
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b += 2
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v.ServerMinorVersion = xgb.Get16(buf[b:])
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b += 2
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b += 20 // padding
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return v
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}
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// Write request to wire for QueryVersion
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// queryVersionRequest writes a QueryVersion request to a byte slice.
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func queryVersionRequest(c *xgb.Conn, ClientMajorVersion byte, ClientMinorVersion byte) []byte {
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size := 8
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b := 0
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buf := make([]byte, size)
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c.ExtLock.RLock()
|
||
|
|
buf[b] = c.Extensions["MIT-SCREEN-SAVER"]
|
||
|
|
c.ExtLock.RUnlock()
|
||
|
|
b += 1
|
||
|
|
|
||
|
|
buf[b] = 0 // request opcode
|
||
|
|
b += 1
|
||
|
|
|
||
|
|
xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units
|
||
|
|
b += 2
|
||
|
|
|
||
|
|
buf[b] = ClientMajorVersion
|
||
|
|
b += 1
|
||
|
|
|
||
|
|
buf[b] = ClientMinorVersion
|
||
|
|
b += 1
|
||
|
|
|
||
|
|
b += 2 // padding
|
||
|
|
|
||
|
|
return buf
|
||
|
|
}
|
||
|
|
|
||
|
|
// SelectInputCookie is a cookie used only for SelectInput requests.
|
||
|
|
type SelectInputCookie struct {
|
||
|
|
*xgb.Cookie
|
||
|
|
}
|
||
|
|
|
||
|
|
// SelectInput sends an unchecked request.
|
||
|
|
// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
|
||
|
|
func SelectInput(c *xgb.Conn, Drawable xproto.Drawable, EventMask uint32) SelectInputCookie {
|
||
|
|
c.ExtLock.RLock()
|
||
|
|
defer c.ExtLock.RUnlock()
|
||
|
|
if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
|
||
|
|
panic("Cannot issue request 'SelectInput' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
|
||
|
|
}
|
||
|
|
cookie := c.NewCookie(false, false)
|
||
|
|
c.NewRequest(selectInputRequest(c, Drawable, EventMask), cookie)
|
||
|
|
return SelectInputCookie{cookie}
|
||
|
|
}
|
||
|
|
|
||
|
|
// SelectInputChecked sends a checked request.
|
||
|
|
// If an error occurs, it can be retrieved using SelectInputCookie.Check()
|
||
|
|
func SelectInputChecked(c *xgb.Conn, Drawable xproto.Drawable, EventMask uint32) SelectInputCookie {
|
||
|
|
c.ExtLock.RLock()
|
||
|
|
defer c.ExtLock.RUnlock()
|
||
|
|
if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
|
||
|
|
panic("Cannot issue request 'SelectInput' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
|
||
|
|
}
|
||
|
|
cookie := c.NewCookie(true, false)
|
||
|
|
c.NewRequest(selectInputRequest(c, Drawable, EventMask), cookie)
|
||
|
|
return SelectInputCookie{cookie}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check returns an error if one occurred for checked requests that are not expecting a reply.
|
||
|
|
// This cannot be called for requests expecting a reply, nor for unchecked requests.
|
||
|
|
func (cook SelectInputCookie) Check() error {
|
||
|
|
return cook.Cookie.Check()
|
||
|
|
}
|
||
|
|
|
||
|
|
// Write request to wire for SelectInput
|
||
|
|
// selectInputRequest writes a SelectInput request to a byte slice.
|
||
|
|
func selectInputRequest(c *xgb.Conn, Drawable xproto.Drawable, EventMask uint32) []byte {
|
||
|
|
size := 12
|
||
|
|
b := 0
|
||
|
|
buf := make([]byte, size)
|
||
|
|
|
||
|
|
c.ExtLock.RLock()
|
||
|
|
buf[b] = c.Extensions["MIT-SCREEN-SAVER"]
|
||
|
|
c.ExtLock.RUnlock()
|
||
|
|
b += 1
|
||
|
|
|
||
|
|
buf[b] = 2 // request opcode
|
||
|
|
b += 1
|
||
|
|
|
||
|
|
xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units
|
||
|
|
b += 2
|
||
|
|
|
||
|
|
xgb.Put32(buf[b:], uint32(Drawable))
|
||
|
|
b += 4
|
||
|
|
|
||
|
|
xgb.Put32(buf[b:], EventMask)
|
||
|
|
b += 4
|
||
|
|
|
||
|
|
return buf
|
||
|
|
}
|
||
|
|
|
||
|
|
// SetAttributesCookie is a cookie used only for SetAttributes requests.
|
||
|
|
type SetAttributesCookie struct {
|
||
|
|
*xgb.Cookie
|
||
|
|
}
|
||
|
|
|
||
|
|
// SetAttributes sends an unchecked request.
|
||
|
|
// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
|
||
|
|
func SetAttributes(c *xgb.Conn, Drawable xproto.Drawable, X int16, Y int16, Width uint16, Height uint16, BorderWidth uint16, Class byte, Depth byte, Visual xproto.Visualid, ValueMask uint32, ValueList []uint32) SetAttributesCookie {
|
||
|
|
c.ExtLock.RLock()
|
||
|
|
defer c.ExtLock.RUnlock()
|
||
|
|
if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
|
||
|
|
panic("Cannot issue request 'SetAttributes' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
|
||
|
|
}
|
||
|
|
cookie := c.NewCookie(false, false)
|
||
|
|
c.NewRequest(setAttributesRequest(c, Drawable, X, Y, Width, Height, BorderWidth, Class, Depth, Visual, ValueMask, ValueList), cookie)
|
||
|
|
return SetAttributesCookie{cookie}
|
||
|
|
}
|
||
|
|
|
||
|
|
// SetAttributesChecked sends a checked request.
|
||
|
|
// If an error occurs, it can be retrieved using SetAttributesCookie.Check()
|
||
|
|
func SetAttributesChecked(c *xgb.Conn, Drawable xproto.Drawable, X int16, Y int16, Width uint16, Height uint16, BorderWidth uint16, Class byte, Depth byte, Visual xproto.Visualid, ValueMask uint32, ValueList []uint32) SetAttributesCookie {
|
||
|
|
c.ExtLock.RLock()
|
||
|
|
defer c.ExtLock.RUnlock()
|
||
|
|
if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
|
||
|
|
panic("Cannot issue request 'SetAttributes' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
|
||
|
|
}
|
||
|
|
cookie := c.NewCookie(true, false)
|
||
|
|
c.NewRequest(setAttributesRequest(c, Drawable, X, Y, Width, Height, BorderWidth, Class, Depth, Visual, ValueMask, ValueList), cookie)
|
||
|
|
return SetAttributesCookie{cookie}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check returns an error if one occurred for checked requests that are not expecting a reply.
|
||
|
|
// This cannot be called for requests expecting a reply, nor for unchecked requests.
|
||
|
|
func (cook SetAttributesCookie) Check() error {
|
||
|
|
return cook.Cookie.Check()
|
||
|
|
}
|
||
|
|
|
||
|
|
// Write request to wire for SetAttributes
|
||
|
|
// setAttributesRequest writes a SetAttributes request to a byte slice.
|
||
|
|
func setAttributesRequest(c *xgb.Conn, Drawable xproto.Drawable, X int16, Y int16, Width uint16, Height uint16, BorderWidth uint16, Class byte, Depth byte, Visual xproto.Visualid, ValueMask uint32, ValueList []uint32) []byte {
|
||
|
|
size := xgb.Pad((28 + xgb.Pad((4 * xgb.PopCount(int(ValueMask))))))
|
||
|
|
b := 0
|
||
|
|
buf := make([]byte, size)
|
||
|
|
|
||
|
|
c.ExtLock.RLock()
|
||
|
|
buf[b] = c.Extensions["MIT-SCREEN-SAVER"]
|
||
|
|
c.ExtLock.RUnlock()
|
||
|
|
b += 1
|
||
|
|
|
||
|
|
buf[b] = 3 // request opcode
|
||
|
|
b += 1
|
||
|
|
|
||
|
|
xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units
|
||
|
|
b += 2
|
||
|
|
|
||
|
|
xgb.Put32(buf[b:], uint32(Drawable))
|
||
|
|
b += 4
|
||
|
|
|
||
|
|
xgb.Put16(buf[b:], uint16(X))
|
||
|
|
b += 2
|
||
|
|
|
||
|
|
xgb.Put16(buf[b:], uint16(Y))
|
||
|
|
b += 2
|
||
|
|
|
||
|
|
xgb.Put16(buf[b:], Width)
|
||
|
|
b += 2
|
||
|
|
|
||
|
|
xgb.Put16(buf[b:], Height)
|
||
|
|
b += 2
|
||
|
|
|
||
|
|
xgb.Put16(buf[b:], BorderWidth)
|
||
|
|
b += 2
|
||
|
|
|
||
|
|
buf[b] = Class
|
||
|
|
b += 1
|
||
|
|
|
||
|
|
buf[b] = Depth
|
||
|
|
b += 1
|
||
|
|
|
||
|
|
xgb.Put32(buf[b:], uint32(Visual))
|
||
|
|
b += 4
|
||
|
|
|
||
|
|
xgb.Put32(buf[b:], ValueMask)
|
||
|
|
b += 4
|
||
|
|
|
||
|
|
for i := 0; i < xgb.PopCount(int(ValueMask)); i++ {
|
||
|
|
xgb.Put32(buf[b:], ValueList[i])
|
||
|
|
b += 4
|
||
|
|
}
|
||
|
|
b = xgb.Pad(b)
|
||
|
|
|
||
|
|
return buf
|
||
|
|
}
|
||
|
|
|
||
|
|
// SuspendCookie is a cookie used only for Suspend requests.
|
||
|
|
type SuspendCookie struct {
|
||
|
|
*xgb.Cookie
|
||
|
|
}
|
||
|
|
|
||
|
|
// Suspend sends an unchecked request.
|
||
|
|
// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
|
||
|
|
func Suspend(c *xgb.Conn, Suspend uint32) SuspendCookie {
|
||
|
|
c.ExtLock.RLock()
|
||
|
|
defer c.ExtLock.RUnlock()
|
||
|
|
if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
|
||
|
|
panic("Cannot issue request 'Suspend' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
|
||
|
|
}
|
||
|
|
cookie := c.NewCookie(false, false)
|
||
|
|
c.NewRequest(suspendRequest(c, Suspend), cookie)
|
||
|
|
return SuspendCookie{cookie}
|
||
|
|
}
|
||
|
|
|
||
|
|
// SuspendChecked sends a checked request.
|
||
|
|
// If an error occurs, it can be retrieved using SuspendCookie.Check()
|
||
|
|
func SuspendChecked(c *xgb.Conn, Suspend uint32) SuspendCookie {
|
||
|
|
c.ExtLock.RLock()
|
||
|
|
defer c.ExtLock.RUnlock()
|
||
|
|
if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
|
||
|
|
panic("Cannot issue request 'Suspend' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
|
||
|
|
}
|
||
|
|
cookie := c.NewCookie(true, false)
|
||
|
|
c.NewRequest(suspendRequest(c, Suspend), cookie)
|
||
|
|
return SuspendCookie{cookie}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check returns an error if one occurred for checked requests that are not expecting a reply.
|
||
|
|
// This cannot be called for requests expecting a reply, nor for unchecked requests.
|
||
|
|
func (cook SuspendCookie) Check() error {
|
||
|
|
return cook.Cookie.Check()
|
||
|
|
}
|
||
|
|
|
||
|
|
// Write request to wire for Suspend
|
||
|
|
// suspendRequest writes a Suspend request to a byte slice.
|
||
|
|
func suspendRequest(c *xgb.Conn, Suspend uint32) []byte {
|
||
|
|
size := 8
|
||
|
|
b := 0
|
||
|
|
buf := make([]byte, size)
|
||
|
|
|
||
|
|
c.ExtLock.RLock()
|
||
|
|
buf[b] = c.Extensions["MIT-SCREEN-SAVER"]
|
||
|
|
c.ExtLock.RUnlock()
|
||
|
|
b += 1
|
||
|
|
|
||
|
|
buf[b] = 5 // request opcode
|
||
|
|
b += 1
|
||
|
|
|
||
|
|
xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units
|
||
|
|
b += 2
|
||
|
|
|
||
|
|
xgb.Put32(buf[b:], Suspend)
|
||
|
|
b += 4
|
||
|
|
|
||
|
|
return buf
|
||
|
|
}
|
||
|
|
|
||
|
|
// UnsetAttributesCookie is a cookie used only for UnsetAttributes requests.
|
||
|
|
type UnsetAttributesCookie struct {
|
||
|
|
*xgb.Cookie
|
||
|
|
}
|
||
|
|
|
||
|
|
// UnsetAttributes sends an unchecked request.
|
||
|
|
// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
|
||
|
|
func UnsetAttributes(c *xgb.Conn, Drawable xproto.Drawable) UnsetAttributesCookie {
|
||
|
|
c.ExtLock.RLock()
|
||
|
|
defer c.ExtLock.RUnlock()
|
||
|
|
if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
|
||
|
|
panic("Cannot issue request 'UnsetAttributes' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
|
||
|
|
}
|
||
|
|
cookie := c.NewCookie(false, false)
|
||
|
|
c.NewRequest(unsetAttributesRequest(c, Drawable), cookie)
|
||
|
|
return UnsetAttributesCookie{cookie}
|
||
|
|
}
|
||
|
|
|
||
|
|
// UnsetAttributesChecked sends a checked request.
|
||
|
|
// If an error occurs, it can be retrieved using UnsetAttributesCookie.Check()
|
||
|
|
func UnsetAttributesChecked(c *xgb.Conn, Drawable xproto.Drawable) UnsetAttributesCookie {
|
||
|
|
c.ExtLock.RLock()
|
||
|
|
defer c.ExtLock.RUnlock()
|
||
|
|
if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
|
||
|
|
panic("Cannot issue request 'UnsetAttributes' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
|
||
|
|
}
|
||
|
|
cookie := c.NewCookie(true, false)
|
||
|
|
c.NewRequest(unsetAttributesRequest(c, Drawable), cookie)
|
||
|
|
return UnsetAttributesCookie{cookie}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check returns an error if one occurred for checked requests that are not expecting a reply.
|
||
|
|
// This cannot be called for requests expecting a reply, nor for unchecked requests.
|
||
|
|
func (cook UnsetAttributesCookie) Check() error {
|
||
|
|
return cook.Cookie.Check()
|
||
|
|
}
|
||
|
|
|
||
|
|
// Write request to wire for UnsetAttributes
|
||
|
|
// unsetAttributesRequest writes a UnsetAttributes request to a byte slice.
|
||
|
|
func unsetAttributesRequest(c *xgb.Conn, Drawable xproto.Drawable) []byte {
|
||
|
|
size := 8
|
||
|
|
b := 0
|
||
|
|
buf := make([]byte, size)
|
||
|
|
|
||
|
|
c.ExtLock.RLock()
|
||
|
|
buf[b] = c.Extensions["MIT-SCREEN-SAVER"]
|
||
|
|
c.ExtLock.RUnlock()
|
||
|
|
b += 1
|
||
|
|
|
||
|
|
buf[b] = 4 // request opcode
|
||
|
|
b += 1
|
||
|
|
|
||
|
|
xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units
|
||
|
|
b += 2
|
||
|
|
|
||
|
|
xgb.Put32(buf[b:], uint32(Drawable))
|
||
|
|
b += 4
|
||
|
|
|
||
|
|
return buf
|
||
|
|
}
|