clipboard #14
@ -257,12 +257,15 @@ func (window *window) handleSelectionClear (
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connection *xgbutil.XUtil,
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connection *xgbutil.XUtil,
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event xevent.SelectionClearEvent,
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event xevent.SelectionClearEvent,
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) {
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) {
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// TODO: schedule the claim to be deleted. when the event loop fires we
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window.selectionClaim = nil
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// will check to see if the claim is scheduled to be deleted and if it
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}
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// is, delete it.
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if window.selectionClaim != nil {
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func (window *window) handleSelectionRequest (
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window.selectionClaim.scheduledDelete = true
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connection *xgbutil.XUtil,
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}
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event xevent.SelectionRequestEvent,
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) {
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if window.selectionClaim == nil { return }
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window.selectionClaim.handleSelectionRequest(connection, event)
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}
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}
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func (window *window) compressExpose (
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func (window *window) compressExpose (
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@ -146,6 +146,23 @@ func targetToMime (name string) (data.Mime, confidence) {
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}
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}
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}
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}
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func mimeToTargets (mime data.Mime) (names []string) {
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names = append(names, mime.String())
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switch mime {
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case data.M("application", "pdf"):
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names = append(names, "ADOBE_PORTABLE_DOCUMENT_FORMAT")
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case data.M("image", "pict"):
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names = append(names, "APPLE_PICT")
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case data.M("application", "postscript"):
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names = append(names, "POSTSCRIPT")
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case data.MimeFile:
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names = append(names, "FILE_NAME")
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case data.MimePlain:
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names = append(names, "UTF8_STRING", "TEXT", "STRING")
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}
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return
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}
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func (request *selectionRequest) handleSelectionNotify (
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func (request *selectionRequest) handleSelectionNotify (
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connection *xgbutil.XUtil,
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connection *xgbutil.XUtil,
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event xevent.SelectionNotifyEvent,
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event xevent.SelectionNotifyEvent,
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@ -1,24 +1,155 @@
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package x
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package x
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import "io"
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import "github.com/jezek/xgb"
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import "github.com/jezek/xgbutil"
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import "github.com/jezek/xgb/xproto"
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import "github.com/jezek/xgbutil/xprop"
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import "github.com/jezek/xgbutil/xevent"
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import "git.tebibyte.media/sashakoshka/tomo/data"
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import "git.tebibyte.media/sashakoshka/tomo/data"
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type selectionClaim struct {
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type selectionClaim struct {
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window *window
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data data.Data
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data data.Data
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scheduledDelete bool
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name xproto.Atom
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}
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}
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func (window *window) newSelectionClaim (data data.Data) *selectionClaim {
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func (window *window) claimSelection (name xproto.Atom, data data.Data) *selectionClaim {
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return &selectionClaim{
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// Follow:
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// https://tronche.com/gui/x/icccm/sec-2.html#s-2.1
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// A client wishing to acquire ownership of a particular selection
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// should call SetSelectionOwner. The client should set the specified
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// selection to the atom that represents the selection, set the
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// specified owner to some window that the client created, and set the
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// specified time to some time between the current last-change time of
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// the selection concerned and the current server time. This time value
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// usually will be obtained from the timestamp of the event that
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// triggers the acquisition of the selection. Clients should not set the
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// time value to CurrentTime, because if they do so, they have no way of
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// finding when they gained ownership of the selection. Clients must use
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// a window they created so that requestors can route events to the
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// owner of the selection.
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err := xproto.SetSelectionOwnerChecked (
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window.backend.connection.Conn(),
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window.xWindow.Id, name, 0).Check() // FIXME: should not be zero
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if err != nil { return nil }
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return &selectionClaim {
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window: window,
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data: data,
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data: data,
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name: name,
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}
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}
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}
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}
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func (claim *selectionClaim) idle () bool {
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func (window *window) refuseSelectionRequest (request xevent.SelectionRequestEvent) {
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// TODO
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// ... refuse the SelectionRequest by sending the requestor window a
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// SelectionNotify event with the property set to None (by means of a
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// SendEvent request with an empty event mask).
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event := xproto.SelectionNotifyEvent {
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Requestor: request.Requestor,
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Selection: request.Selection,
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Target: request.Target,
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Property: 0,
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}.Bytes()
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xproto.SendEvent (
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window.backend.connection.Conn(),
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false, request.Requestor, 0, string(event))
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}
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func (window *window) fulfillSelectionRequest (
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data []byte,
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format byte,
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request xevent.SelectionRequestEvent,
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) {
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die := func () { window.refuseSelectionRequest(request) }
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// If the specified property is not None, the owner should place the
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// data resulting from converting the selection into the specified
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// property on the requestor window and should set the property's type
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// to some appropriate value, which need not be the same as the
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// specified target.
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err := xproto.ChangePropertyChecked (
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window.backend.connection.Conn(),
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xproto.PropModeReplace, window.xWindow.Id,
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request.Property,
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request.Target, format,
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uint32(len(data) / (int(format) / 8)), data).Check()
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if err != nil { die() }
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// If the property is successfully stored, the owner should acknowledge
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// the successful conversion by sending the requestor window a
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// SelectionNotify event (by means of a SendEvent request with an empty
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// mask).
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event := xproto.SelectionNotifyEvent {
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Requestor: request.Requestor,
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Selection: request.Selection,
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Target: request.Target,
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Property: request.Property,
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}.Bytes()
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xproto.SendEvent (
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window.backend.connection.Conn(),
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false, request.Requestor, 0, string(event))
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}
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}
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func (claim *selectionClaim) handleSelectionRequest (
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func (claim *selectionClaim) handleSelectionRequest (
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// TODO
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connection *xgbutil.XUtil,
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event xevent.SelectionRequestEvent,
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) {
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) {
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// TODO
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// Follow:
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// https://tronche.com/gui/x/icccm/sec-2.html#s-2.2
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die := func () { claim.window.refuseSelectionRequest(event) }
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// When a requestor wants the value of a selection, the owner receives a
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// SelectionRequest event. The specified owner and selection will be the
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// values that were specified in the SetSelectionOwner request. The
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// owner should compare the timestamp with the period it has owned the
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// selection and, if the time is outside, refuse the SelectionRequest.
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if event.Selection != claim.name { die(); return }
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// If the specified property is None , the requestor is an obsolete
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// client. Owners are encouraged to support these clients by using the
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// specified target atom as the property name to be used for the reply.
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if event.Property == 0 {
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event.Property = event.Target
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}
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// Otherwise, the owner should use the target to decide the form into
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// which the selection should be converted. Some targets may be defined
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// such that requestors can pass parameters along with the request. The
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// owner will find these parameters in the property named in the
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// selection request. The type, format, and contents of this property
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// are dependent upon the definition of the target. If the target is not
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// defined to have parameters, the owner should ignore the property if
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// it is present. If the selection cannot be converted into a form based
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// on the target (and parameters, if any), the owner should refuse the
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// SelectionRequest as previously described.
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targetName, err := xprop.AtomName (
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claim.window.backend.connection, event.Target)
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if err != nil { die(); return }
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switch targetName {
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case "TARGETS":
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targetNames := []string { }
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for mime := range claim.data {
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targetNames = append(targetNames, mimeToTargets(mime)...)
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}
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data := make([]byte, len(targetNames) * 4)
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for index, name := range targetNames {
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atom, err := xprop.Atm(claim.window.backend.connection, name)
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if err != nil { die(); return }
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xgb.Put32(data[:index * 4], uint32(atom))
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}
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claim.window.fulfillSelectionRequest(data, 8, event)
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default:
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mime, confidence := targetToMime(targetName)
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if confidence == confidenceNone { die(); return }
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reader, ok := claim.data[mime]
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if !ok { die(); return }
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data, err := io.ReadAll(reader)
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if err != nil { die() }
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claim.window.fulfillSelectionRequest(data, 32, event)
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}
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}
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}
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@ -102,6 +102,8 @@ func (backend *Backend) newWindow (
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Connect(backend.connection, window.xWindow.Id)
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Connect(backend.connection, window.xWindow.Id)
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xevent.SelectionClearFun(window.handleSelectionClear).
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xevent.SelectionClearFun(window.handleSelectionClear).
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Connect(backend.connection, window.xWindow.Id)
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Connect(backend.connection, window.xWindow.Id)
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xevent.SelectionRequestFun(window.handleSelectionRequest).
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Connect(backend.connection, window.xWindow.Id)
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window.SetTheme(backend.theme)
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window.SetTheme(backend.theme)
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window.SetConfig(backend.config)
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window.SetConfig(backend.config)
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@ -288,7 +290,10 @@ func (window *window) Hide () {
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}
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}
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func (window *window) Copy (data data.Data) {
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func (window *window) Copy (data data.Data) {
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// TODO
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selectionName := "CLIPBOARD"
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selectionAtom, err := xprop.Atm(window.backend.connection, selectionName)
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if err != nil { return }
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window.selectionClaim = window.claimSelection(selectionAtom, data)
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}
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}
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func (window *window) Paste (callback func (data.Data, error), accept ...data.Mime) {
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func (window *window) Paste (callback func (data.Data, error), accept ...data.Mime) {
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Block a user