114 lines
2.8 KiB
Go
114 lines
2.8 KiB
Go
// License: GPLv3 Copyright: 2022, Kovid Goyal, <kovid at kovidgoyal.net>
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package icat
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import (
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"fmt"
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"os"
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"kitty/tools/cli"
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"kitty/tools/tty"
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"kitty/tools/tui/graphics"
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"kitty/tools/tui/loop"
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"kitty/tools/utils"
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)
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var _ = fmt.Print
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var opts *Options
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var lp *loop.Loop
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type transfer_mode int
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const (
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unknown transfer_mode = iota
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unsupported
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supported
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)
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var transfer_by_file, transfer_by_memory, transfer_by_stream transfer_mode
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var temp_files_to_delete []string
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var direct_query_id, file_query_id, memory_query_id uint32
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var stderr_is_tty bool
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func print_error(format string, args ...any) {
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if lp == nil || !stderr_is_tty {
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fmt.Fprintf(os.Stderr, format, args...)
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fmt.Fprintln(os.Stderr)
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} else {
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lp.QueueWriteString(fmt.Sprintf(format, args...))
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lp.QueueWriteString("\r\n")
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}
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}
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func on_initialize() (string, error) {
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var iid uint32
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g := func(t graphics.GRT_t, payload string) uint32 {
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iid += 1
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g1 := &graphics.GraphicsCommand{}
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g1.SetTransmission(t).SetAction(graphics.GRT_action_query).SetImageId(iid).SetDataWidth(1).SetDataHeight(1).SetFormat(graphics.GRT_format_rgb)
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g1.WriteWithPayloadToLoop(lp, utils.UnsafeStringToBytes(payload))
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return iid
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}
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sz, err := lp.ScreenSize()
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if err != nil {
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return "", fmt.Errorf("Failed to query terminal for screen size with error: %w", err)
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}
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if sz.WidthPx == 0 || sz.HeightPx == 0 {
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return "", fmt.Errorf("Terminal does not support reporting screen sizes via the TIOCGWINSZ ioctl")
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}
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direct_query_id = g(graphics.GRT_transmission_direct, "123")
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tf, err := graphics.MakeTemp()
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if err == nil {
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file_query_id = g(graphics.GRT_transmission_tempfile, tf.Name())
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temp_files_to_delete = append(temp_files_to_delete, tf.Name())
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tf.Write([]byte{1, 2, 3})
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tf.Close()
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} else {
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transfer_by_file = unsupported
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print_error("Failed to create temporary file for data transfer, file based transfer is disabled. Error: %v", err)
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}
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return "", nil
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}
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func on_finalize() string {
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if len(temp_files_to_delete) > 0 {
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for _, name := range temp_files_to_delete {
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os.Remove(name)
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}
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}
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return ""
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}
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func main(cmd *cli.Command, o *Options, args []string) (rc int, err error) {
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opts = o
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stderr_is_tty = tty.IsTerminal(os.Stderr.Fd())
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if opts.PrintWindowSize {
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t, err := tty.OpenControllingTerm()
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if err != nil {
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return 1, fmt.Errorf("Failed to open controlling terminal with error: %w", err)
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}
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sz, err := t.GetSize()
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if err != nil {
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return 1, fmt.Errorf("Failed to query terminal using TIOCGWINSZ with error: %w", err)
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}
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fmt.Printf("%dx%d", sz.Xpixel, sz.Ypixel)
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return 0, nil
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}
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temp_files_to_delete = make([]string, 0, 8)
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lp, err = loop.New(loop.NoAlternateScreen, loop.NoRestoreColors, loop.NoMouseTracking)
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if err != nil {
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return
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}
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lp.OnInitialize = on_initialize
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lp.OnFinalize = on_finalize
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return 0, nil
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}
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func EntryPoint(parent *cli.Command) {
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create_cmd(parent, main)
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}
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