134 lines
2.7 KiB
Go
134 lines
2.7 KiB
Go
package lib
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import (
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"bufio"
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"encoding/json"
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"log"
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"os"
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"strings"
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)
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// ClickEvent struct as described at https://i3wm.org/docs/i3bar-protocol.html
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type ClickEvent struct {
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Name string `json:"name,omitempty"`
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Instance string `json:"instance,omitempty"`
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Button int `json:"button"`
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Modifiers []string `json:"modifiers"`
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X int `json:"x"`
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Y int `json:"y"`
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RelativeX int `json:"relative_x"`
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RelativeY int `json:"relative_y"`
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OutputX int `json:"output_x"`
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OutputY int `json:"output_y"`
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Width int `json:"width"`
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Height int `json:"height"`
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}
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// ParseStdin tries to parse text that i3bar prints to our stdin. Currently - it is mouse click events on different
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// area names of i3bar.
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func (c MyConfig) ParseStdin() {
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reader := bufio.NewReader(os.Stdin)
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// De-facto it is jsonl, except first line is garbage. Also, first symbol in each strint garbage too.
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firstelem := true
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for {
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var e ClickEvent
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buf, err := reader.ReadString('\n')
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if err != nil {
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if !firstelem {
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log.Printf("Unable to read from stdin: %s", err)
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}
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break
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}
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if len(buf) == 0 {
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log.Print("String from stdin has zero length, skipping")
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continue
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}
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for i := 0; i < len(buf); i++ {
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if strings.HasPrefix(buf, "{") {
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break
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}
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buf = buf[1:]
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}
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if len(buf) == 0 {
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log.Print("String from stdin has zero length, skipping")
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continue
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}
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err = json.Unmarshal([]byte(buf), &e)
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if err != nil {
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if firstelem {
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firstelem = false
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} else {
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log.Printf("Unable to decode json line from stdin: %s, buf: %s", err, buf)
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}
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continue
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}
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// Just in case.
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if firstelem {
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firstelem = false
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}
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// Clock clicks parse.
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if e.Name == "wallclock" {
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if Conf.Clock.LeftClick.Enabled && e.Button == 1 {
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RunChan <- Conf.Clock.LeftClick.Cmd
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} else if Conf.Clock.RightClick.Enabled && e.Button == 3 {
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RunChan <- Conf.Clock.RightClick.Cmd
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}
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continue
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}
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if e.Name == "simple-volume-pa" {
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if Conf.SimpleVolumePa.Enabled {
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SVPAHandlerChan <- e
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}
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continue
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}
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if !Conf.AppButtons.Enabled {
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continue
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}
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for _, app := range Conf.Apps {
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switch {
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case app.Name != "" && app.Instance != "":
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if app.Name == e.Name && app.Instance == e.Instance {
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prg := append([]string{}, app.Cmd)
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prg = append(prg, app.Args...)
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RunChan <- prg
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break
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}
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case app.Name != "" && e.Name == app.Name:
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prg := append([]string{}, app.Cmd)
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prg = append(prg, app.Args...)
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RunChan <- prg
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case app.Instance != "" && e.Instance == app.Instance:
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prg := append([]string{}, app.Cmd)
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prg = append(prg, app.Args...)
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RunChan <- prg
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}
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}
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}
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}
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