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This should have been several separate commits

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This commit is contained in:
Sasha Koshka
2023-03-29 00:50:23 -04:00
parent 6f15ff3366
commit 0aede3502b
7 changed files with 247 additions and 124 deletions
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56
backends/x/event.go
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@@ -1,14 +1,11 @@
package x
import "bytes"
import "image"
import "errors"
import "git.tebibyte.media/sashakoshka/tomo/input"
import "git.tebibyte.media/sashakoshka/tomo/elements"
import "github.com/jezek/xgbutil"
import "github.com/jezek/xgb/xproto"
import "github.com/jezek/xgbutil/xprop"
import "github.com/jezek/xgbutil/xevent"
type scrollSum struct {
@@ -242,58 +239,9 @@ func (window *window) handleSelectionNotify (
connection *xgbutil.XUtil,
event xevent.SelectionNotifyEvent,
) {
// Follow:
// https://tronche.com/gui/x/icccm/sec-2.html#s-2.4
if window.selectionRequest == nil { return }
die := func (err error) {
window.selectionRequest(nil, err)
window.selectionRequest = nil
}
// If the property argument is None, the conversion has been refused.
// This can mean either that there is no owner for the selection, that
// the owner does not support the conversion implied by the target, or
// that the server did not have sufficient space to accommodate the
// data.
if event.Property == 0 { die(nil); return }
// When using GetProperty to retrieve the value of a selection, the
// property argument should be set to the corresponding value in the
// SelectionNotify event. Because the requestor has no way of knowing
// beforehand what type the selection owner will use, the type argument
// should be set to AnyPropertyType. Several GetProperty requests may be
// needed to retrieve all the data in the selection; each should set the
// long-offset argument to the amount of data received so far, and the
// size argument to some reasonable buffer size (see section 2.5). If
// the returned value of bytes-after is zero, the whole property has
// been transferred.
reply, err := xproto.GetProperty (
connection.Conn(), false, window.xWindow.Id, event.Property,
xproto.GetPropertyTypeAny, 0, (1 << 32) - 1).Reply()
if err != nil { die(err); return }
if reply.Format == 0 {
die(errors.New("x: missing selection property"))
return
}
// Once all the data in the selection has been retrieved (which may
// require getting the values of several properties &emdash; see section
// 2.7), the requestor should delete the property in the SelectionNotify
// request by using a GetProperty request with the delete argument set
// to True. As previously discussed, the owner has no way of knowing
// when the data has been transferred to the requestor unless the
// property is removed.
propertyAtom, err := xprop.Atm(window.backend.connection, "TOMO_SELECTION")
if err != nil { die(err); return }
err = xproto.DeletePropertyChecked (
window.backend.connection.Conn(),
window.xWindow.Id,
propertyAtom).Check()
if err != nil { die(err); return }
// TODO: possibly do some conversion here?
window.selectionRequest(bytes.NewReader(reply.Value), nil)
window.selectionRequest = nil
window.selectionRequest.handleSelectionNotify(connection, event)
if !window.selectionRequest.open() { window.selectionRequest = nil }
}
func (window *window) compressExpose (