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io/input: [API] execute commands immediately

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Change the semantics of commands to execute immediately. In cases where
execution of a command introduces a inconsistency, freeze event routing
and defer the command as well as queued events to the next frame.

Rename Source.Queue to Source.Execute to better fit the new command
semantics.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2023-11-20 16:25:05 -06:00
parent 67b58a6006
commit fc208248b7
11 changed files with 190 additions and 142 deletions
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widget/editor.go
+6 -6
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@@ -475,13 +475,13 @@ func (e *Editor) command(gtx layout.Context, k key.Event) {
// half is in Editor.processKey() under clipboard.Event.
case "V":
if !e.ReadOnly {
gtx.Queue(clipboard.ReadCmd{Tag: &e.eventKey})
gtx.Execute(clipboard.ReadCmd{Tag: &e.eventKey})
}
// Copy or Cut selection -- ignored if nothing selected.
case "C", "X":
e.scratch = e.text.SelectedText(e.scratch)
if text := string(e.scratch); text != "" {
gtx.Queue(clipboard.WriteCmd{Type: "application/text", Data: io.NopCloser(strings.NewReader(text))})
gtx.Execute(clipboard.WriteCmd{Type: "application/text", Data: io.NopCloser(strings.NewReader(text))})
if k.Name == "X" && !e.ReadOnly {
e.Delete(1)
}
@@ -556,8 +556,8 @@ func (e *Editor) command(gtx layout.Context, k key.Event) {
// Focus requests the input focus for the Editor.
func (e *Editor) Focus(gtx layout.Context) {
gtx.Queue(key.FocusCmd{Tag: &e.eventKey})
gtx.Queue(key.SoftKeyboardCmd{Show: true})
gtx.Execute(key.FocusCmd{Tag: &e.eventKey})
gtx.Execute(key.SoftKeyboardCmd{Show: true})
}
// Focused returns whether the editor is focused or not.
@@ -601,7 +601,7 @@ func (e *Editor) Update(gtx layout.Context) {
}
if newSel != e.ime.selection {
e.ime.selection = newSel
gtx.Queue(key.SelectionCmd{Tag: &e.eventKey, Range: newSel.rng, Caret: newSel.caret})
gtx.Execute(key.SelectionCmd{Tag: &e.eventKey, Range: newSel.rng, Caret: newSel.caret})
}
e.updateSnippet(gtx, e.ime.start, e.ime.end)
@@ -658,7 +658,7 @@ func (e *Editor) updateSnippet(gtx layout.Context, start, end int) {
return
}
e.ime.snippet = newSnip
gtx.Queue(key.SnippetCmd{Tag: &e.eventKey, Snippet: newSnip})
gtx.Execute(key.SnippetCmd{Tag: &e.eventKey, Snippet: newSnip})
}
func (e *Editor) layout(gtx layout.Context, textMaterial, selectMaterial op.CallOp) layout.Dimensions {