haven/nexgb/screensaver/screensaver.go

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2012-05-11 02:06:22 +02:00
// Package screensaver is the X client API for the MIT-SCREEN-SAVER extension.
package screensaver
/*
This file was generated by screensaver.xml on May 26 2012 6:23:13pm EDT.
This file is automatically generated. Edit at your peril!
*/
import (
"github.com/BurntSushi/xgb"
"github.com/BurntSushi/xgb/xproto"
)
// Init must be called before using the MIT-SCREEN-SAVER extension.
func Init(c *xgb.Conn) error {
reply, err := xproto.QueryExtension(c, 16, "MIT-SCREEN-SAVER").Reply()
switch {
case err != nil:
return err
case !reply.Present:
return xgb.Errorf("No extension named MIT-SCREEN-SAVER could be found on on the server.")
}
xgb.ExtLock.Lock()
c.Extensions["MIT-SCREEN-SAVER"] = reply.MajorOpcode
for evNum, fun := range xgb.NewExtEventFuncs["MIT-SCREEN-SAVER"] {
xgb.NewEventFuncs[int(reply.FirstEvent)+evNum] = fun
}
for errNum, fun := range xgb.NewExtErrorFuncs["MIT-SCREEN-SAVER"] {
xgb.NewErrorFuncs[int(reply.FirstError)+errNum] = fun
}
xgb.ExtLock.Unlock()
return nil
}
func init() {
xgb.NewExtEventFuncs["MIT-SCREEN-SAVER"] = make(map[int]xgb.NewEventFun)
xgb.NewExtErrorFuncs["MIT-SCREEN-SAVER"] = make(map[int]xgb.NewErrorFun)
}
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// Skipping definition for base type 'Double'
// Skipping definition for base type 'Bool'
// Skipping definition for base type 'Float'
// Skipping definition for base type 'Card8'
// Skipping definition for base type 'Int16'
// Skipping definition for base type 'Int32'
// Skipping definition for base type 'Void'
// Skipping definition for base type 'Byte'
// Skipping definition for base type 'Int8'
// Skipping definition for base type 'Card16'
// Skipping definition for base type 'Char'
// Skipping definition for base type 'Card32'
const (
KindBlanked = 0
KindInternal = 1
KindExternal = 2
)
const (
EventNotifyMask = 1
EventCycleMask = 2
)
const (
StateOff = 0
StateOn = 1
StateCycle = 2
StateDisabled = 3
)
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// Notify is the event number for a NotifyEvent.
const Notify = 0
type NotifyEvent struct {
Sequence uint16
Code byte
State byte
// padding: 1 bytes
SequenceNumber uint16
Time xproto.Timestamp
Root xproto.Window
Window xproto.Window
Kind byte
Forced bool
// padding: 14 bytes
}
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// NotifyEventNew constructs a NotifyEvent value that implements xgb.Event from a byte slice.
func NotifyEventNew(buf []byte) xgb.Event {
v := NotifyEvent{}
b := 1 // don't read event number
v.Code = buf[b]
b += 1
v.Sequence = xgb.Get16(buf[b:])
b += 2
v.State = buf[b]
b += 1
b += 1 // padding
v.SequenceNumber = xgb.Get16(buf[b:])
b += 2
v.Time = xproto.Timestamp(xgb.Get32(buf[b:]))
b += 4
v.Root = xproto.Window(xgb.Get32(buf[b:]))
b += 4
v.Window = xproto.Window(xgb.Get32(buf[b:]))
b += 4
v.Kind = buf[b]
b += 1
if buf[b] == 1 {
v.Forced = true
} else {
v.Forced = false
}
b += 1
b += 14 // padding
return v
}
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// Bytes writes a NotifyEvent value to a byte slice.
func (v NotifyEvent) Bytes() []byte {
buf := make([]byte, 32)
b := 0
// write event number
buf[b] = 0
b += 1
buf[b] = v.Code
b += 1
b += 2 // skip sequence number
buf[b] = v.State
b += 1
b += 1 // padding
xgb.Put16(buf[b:], v.SequenceNumber)
b += 2
xgb.Put32(buf[b:], uint32(v.Time))
b += 4
xgb.Put32(buf[b:], uint32(v.Root))
b += 4
xgb.Put32(buf[b:], uint32(v.Window))
b += 4
buf[b] = v.Kind
b += 1
if v.Forced {
buf[b] = 1
} else {
buf[b] = 0
}
b += 1
b += 14 // padding
return buf
}
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// SequenceId returns the sequence id attached to the Notify event.
// Events without a sequence number (KeymapNotify) return 0.
// This is mostly used internally.
func (v NotifyEvent) SequenceId() uint16 {
return v.Sequence
}
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// String is a rudimentary string representation of NotifyEvent.
func (v NotifyEvent) String() string {
fieldVals := make([]string, 0, 10)
fieldVals = append(fieldVals, xgb.Sprintf("Sequence: %d", v.Sequence))
fieldVals = append(fieldVals, xgb.Sprintf("Code: %d", v.Code))
fieldVals = append(fieldVals, xgb.Sprintf("State: %d", v.State))
fieldVals = append(fieldVals, xgb.Sprintf("SequenceNumber: %d", v.SequenceNumber))
fieldVals = append(fieldVals, xgb.Sprintf("Time: %d", v.Time))
fieldVals = append(fieldVals, xgb.Sprintf("Root: %d", v.Root))
fieldVals = append(fieldVals, xgb.Sprintf("Window: %d", v.Window))
fieldVals = append(fieldVals, xgb.Sprintf("Kind: %d", v.Kind))
fieldVals = append(fieldVals, xgb.Sprintf("Forced: %t", v.Forced))
return "Notify {" + xgb.StringsJoin(fieldVals, ", ") + "}"
}
func init() {
xgb.NewExtEventFuncs["MIT-SCREEN-SAVER"][0] = NotifyEventNew
}
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// QueryVersionCookie is a cookie used only for QueryVersion requests.
type QueryVersionCookie struct {
*xgb.Cookie
}
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// QueryVersion sends a checked request.
// If an error occurs, it will be returned with the reply by calling QueryVersionCookie.Reply()
func QueryVersion(c *xgb.Conn, ClientMajorVersion byte, ClientMinorVersion byte) QueryVersionCookie {
if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
panic("Cannot issue request 'QueryVersion' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
}
cookie := c.NewCookie(true, true)
c.NewRequest(queryVersionRequest(c, ClientMajorVersion, ClientMinorVersion), cookie)
return QueryVersionCookie{cookie}
}
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// QueryVersionUnchecked sends an unchecked request.
// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
func QueryVersionUnchecked(c *xgb.Conn, ClientMajorVersion byte, ClientMinorVersion byte) QueryVersionCookie {
if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
panic("Cannot issue request 'QueryVersion' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
}
cookie := c.NewCookie(false, true)
c.NewRequest(queryVersionRequest(c, ClientMajorVersion, ClientMinorVersion), cookie)
return QueryVersionCookie{cookie}
}
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// QueryVersionReply represents the data returned from a QueryVersion request.
type QueryVersionReply struct {
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Sequence uint16 // sequence number of the request for this reply
Length uint32 // number of bytes in this reply
// padding: 1 bytes
ServerMajorVersion uint16
ServerMinorVersion uint16
// padding: 20 bytes
}
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// Reply blocks and returns the reply data for a QueryVersion request.
func (cook QueryVersionCookie) Reply() (*QueryVersionReply, error) {
buf, err := cook.Cookie.Reply()
if err != nil {
return nil, err
}
if buf == nil {
return nil, nil
}
return queryVersionReply(buf), nil
}
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// queryVersionReply reads a byte slice into a QueryVersionReply value.
func queryVersionReply(buf []byte) *QueryVersionReply {
v := new(QueryVersionReply)
b := 1 // skip reply determinant
b += 1 // padding
v.Sequence = xgb.Get16(buf[b:])
b += 2
v.Length = xgb.Get32(buf[b:]) // 4-byte units
b += 4
v.ServerMajorVersion = xgb.Get16(buf[b:])
b += 2
v.ServerMinorVersion = xgb.Get16(buf[b:])
b += 2
b += 20 // padding
return v
}
// Write request to wire for QueryVersion
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// queryVersionRequest writes a QueryVersion request to a byte slice.
func queryVersionRequest(c *xgb.Conn, ClientMajorVersion byte, ClientMinorVersion byte) []byte {
size := 8
b := 0
buf := make([]byte, size)
buf[b] = c.Extensions["MIT-SCREEN-SAVER"]
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
}
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// QueryInfoCookie is a cookie used only for QueryInfo requests.
type QueryInfoCookie struct {
*xgb.Cookie
}
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// QueryInfo sends a checked request.
// If an error occurs, it will be returned with the reply by calling QueryInfoCookie.Reply()
func QueryInfo(c *xgb.Conn, Drawable xproto.Drawable) QueryInfoCookie {
if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
panic("Cannot issue request 'QueryInfo' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
}
cookie := c.NewCookie(true, true)
c.NewRequest(queryInfoRequest(c, Drawable), cookie)
return QueryInfoCookie{cookie}
}
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// QueryInfoUnchecked sends an unchecked request.
// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
func QueryInfoUnchecked(c *xgb.Conn, Drawable xproto.Drawable) QueryInfoCookie {
if _, ok := c.Extensions["MIT-SCREEN-SAVER"]; !ok {
panic("Cannot issue request 'QueryInfo' using the uninitialized extension 'MIT-SCREEN-SAVER'. screensaver.Init(connObj) must be called first.")
}
cookie := c.NewCookie(false, true)
c.NewRequest(queryInfoRequest(c, Drawable), cookie)
return QueryInfoCookie{cookie}
}
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// QueryInfoReply represents the data returned from a QueryInfo request.
type QueryInfoReply struct {
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Sequence uint16 // sequence number of the request for this reply
Length uint32 // number of bytes in this reply
State byte
SaverWindow xproto.Window
MsUntilServer uint32
MsSinceUserInput uint32
EventMask uint32
Kind byte
// padding: 7 bytes
}
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// Reply blocks and returns the reply data for a QueryInfo request.
func (cook QueryInfoCookie) Reply() (*QueryInfoReply, error) {
buf, err := cook.Cookie.Reply()
if err != nil {
return nil, err
}
if buf == nil {
return nil, nil
}
return queryInfoReply(buf), nil
}
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// queryInfoReply reads a byte slice into a QueryInfoReply value.
func queryInfoReply(buf []byte) *QueryInfoReply {
v := new(QueryInfoReply)
b := 1 // skip reply determinant
v.State = buf[b]
b += 1
v.Sequence = xgb.Get16(buf[b:])
b += 2
v.Length = xgb.Get32(buf[b:]) // 4-byte units
b += 4
v.SaverWindow = xproto.Window(xgb.Get32(buf[b:]))
b += 4
v.MsUntilServer = xgb.Get32(buf[b:])
b += 4
v.MsSinceUserInput = xgb.Get32(buf[b:])
b += 4
v.EventMask = xgb.Get32(buf[b:])
b += 4
v.Kind = buf[b]
b += 1
b += 7 // padding
return v
}
// Write request to wire for QueryInfo
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// queryInfoRequest writes a QueryInfo request to a byte slice.
func queryInfoRequest(c *xgb.Conn, Drawable xproto.Drawable) []byte {
size := 8
b := 0
buf := make([]byte, size)
buf[b] = c.Extensions["MIT-SCREEN-SAVER"]
b += 1
buf[b] = 1 // 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
}
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// SelectInputCookie is a cookie used only for SelectInput requests.
type SelectInputCookie struct {
*xgb.Cookie
}
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// 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 {
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}
}
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// 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 {
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}
}
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// 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
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// 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)
buf[b] = c.Extensions["MIT-SCREEN-SAVER"]
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
}
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// SetAttributesCookie is a cookie used only for SetAttributes requests.
type SetAttributesCookie struct {
*xgb.Cookie
}
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// 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 {
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}
}
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// 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 {
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}
}
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// 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
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// 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((24 + (4 + xgb.Pad((4 * xgb.PopCount(int(ValueMask)))))))
b := 0
buf := make([]byte, size)
buf[b] = c.Extensions["MIT-SCREEN-SAVER"]
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
}
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// UnsetAttributesCookie is a cookie used only for UnsetAttributes requests.
type UnsetAttributesCookie struct {
*xgb.Cookie
}
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// 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 {
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}
}
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// 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 {
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}
}
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// 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
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// 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)
buf[b] = c.Extensions["MIT-SCREEN-SAVER"]
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
}
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// SuspendCookie is a cookie used only for Suspend requests.
type SuspendCookie struct {
*xgb.Cookie
}
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// 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 bool) SuspendCookie {
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}
}
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// SuspendChecked sends a checked request.
// If an error occurs, it can be retrieved using SuspendCookie.Check()
func SuspendChecked(c *xgb.Conn, Suspend bool) SuspendCookie {
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}
}
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// 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
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// suspendRequest writes a Suspend request to a byte slice.
func suspendRequest(c *xgb.Conn, Suspend bool) []byte {
size := 8
b := 0
buf := make([]byte, size)
buf[b] = c.Extensions["MIT-SCREEN-SAVER"]
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
if Suspend {
buf[b] = 1
} else {
buf[b] = 0
}
b += 1
b += 3 // padding
return buf
}