forked from Mirrors/bubbletea
92 lines
1.6 KiB
Go
92 lines
1.6 KiB
Go
package tea
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import (
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"errors"
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"io"
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"time"
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"github.com/muesli/cancelreader"
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)
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func (p *Program) initTerminal() error {
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err := p.initInput()
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if err != nil {
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return err
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}
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if p.console != nil {
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err = p.console.SetRaw()
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if err != nil {
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return err
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}
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}
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p.renderer.hideCursor()
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return nil
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}
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// restoreTerminalState restores the terminal to the state prior to running the
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// Bubble Tea program.
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func (p *Program) restoreTerminalState() error {
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if p.renderer != nil {
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p.renderer.showCursor()
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}
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if p.console != nil {
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err := p.console.Reset()
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if err != nil {
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return err
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}
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}
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return p.restoreInput()
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}
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// initCancelReader (re)commences reading inputs.
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func (p *Program) initCancelReader() error {
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var err error
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p.cancelReader, err = cancelreader.NewReader(p.input)
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if err != nil {
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return err
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}
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p.readLoopDone = make(chan struct{})
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go p.readLoop()
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return nil
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}
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func (p *Program) readLoop() {
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defer close(p.readLoopDone)
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for {
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if p.ctx.Err() != nil {
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return
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}
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msgs, err := readInputs(p.cancelReader)
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if err != nil {
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if !errors.Is(err, io.EOF) && !errors.Is(err, cancelreader.ErrCanceled) {
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p.errs <- err
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}
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return
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}
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for _, msg := range msgs {
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p.msgs <- msg
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}
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}
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}
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// waitForReadLoop waits for the cancelReader to finish its read loop.
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func (p *Program) waitForReadLoop() {
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select {
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case <-p.readLoopDone:
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case <-time.After(500 * time.Millisecond):
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// The read loop hangs, which means the input
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// cancelReader's cancel function has returned true even
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// though it was not able to cancel the read.
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}
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}
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