oliver/nwg-drawer
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Merge branch 'main' into main

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This commit is contained in:
Piotr Miller
2021-09-29 22:53:38 +02:00
committed by GitHub
parent e341759b9e 63bc6eb3b2
commit 53a1c895e9
9 changed files with 380 additions and 109 deletions
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198
main.go
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@@ -5,6 +5,7 @@ import (
"fmt"
"os"
"os/signal"
"path"
"path/filepath"
"strconv"
"strings"
@@ -20,16 +21,16 @@ import (
"github.com/gotk3/gotk3/gtk"
)
const version = "0.1.12"
const version = "0.2.0"
var (
appDirs []string
configDirectory string
pinnedFile string
pinned []string
src glib.SourceHandle
id2entry map[string]desktopEntry
preferredApps map[string]interface{}
exclusions []string
)
var categoryNames = [...]string{
@@ -82,6 +83,7 @@ var desktopEntries []desktopEntry
// UI elements
var (
win *gtk.Window
resultWindow *gtk.ScrolledWindow
fileSearchResults []string
searchEntry *gtk.SearchEntry
@@ -98,6 +100,9 @@ var (
statusLabel *gtk.Label
status string
ignore string
showWindowTrigger bool
desktopTrigger bool
pinnedTrigger bool
)
func defaultStringIfBlank(s, fallback string) string {
@@ -122,48 +127,79 @@ var itemSpacing = flag.Uint("spacing", 20, "icon spacing")
var lang = flag.String("lang", "", "force lang, e.g. \"en\", \"pl\"")
var fileManager = flag.String("fm", "thunar", "File Manager")
var term = flag.String("term", defaultStringIfBlank(os.Getenv("TERM"), "alacritty"), "Terminal emulator")
var nameLimit = flag.Int("fslen", 80, "File Search name length Limit")
var nameLimit = flag.Int("fslen", 80, "File Search name LENgth Limit")
var noCats = flag.Bool("nocats", false, "Disable filtering by category")
var noFS = flag.Bool("nofs", false, "Disable file search")
var resident = flag.Bool("r", false, "Leave the program resident in memory")
var debug = flag.Bool("d", false, "Turn on Debug messages")
func main() {
timeStart := time.Now()
flag.Parse()
if *debug {
log.SetLevel(log.DebugLevel)
}
if *displayVersion {
fmt.Printf("nwg-drawer version %s\n", version)
os.Exit(0)
}
// Gentle SIGTERM handler thanks to reiki4040 https://gist.github.com/reiki4040/be3705f307d3cd136e85
// v0.2: we also need to support SIGUSR from now on
signalChan := make(chan os.Signal, 1)
signal.Notify(signalChan, syscall.SIGTERM)
signal.Notify(signalChan, syscall.SIGTERM, syscall.SIGUSR1)
go func() {
for {
s := <-signalChan
if s == syscall.SIGTERM {
log.Info("SIGTERM received, bye bye!")
switch s {
case syscall.SIGTERM:
log.Info("SIGTERM received, bye bye")
gtk.MainQuit()
case syscall.SIGUSR1:
if *resident {
// As win.Show() called from inside a goroutine randomly crashes GTK,
// let's just set e helper variable here. We'll be checking it with glib.TimeoutAdd.
log.Debug("SIGUSR1 received, showing the window")
showWindowTrigger = true
} else {
log.Info("SIGUSR1 received, and I'm not resident, bye bye")
gtk.MainQuit()
}
default:
log.Info("Unknown signal")
}
}
}()
// We want the same key/mouse binding to turn the dock off: kill the running instance and exit.
lockFilePath := fmt.Sprintf("%s/nwg-drawer.lock", tempDir())
// If running instance found, we want it to show the window. The new instance will send SIGUSR1 and die
// (equivalent of `pkill -USR1 nwg-drawer`).
// Otherwise the command may behave in two ways:
// 1. kill the running non-residennt instance and exit;
// 2. die if a resident instance found.
lockFilePath := path.Join(tempDir(), "nwg-drawer.lock")
lockFile, err := singleinstance.CreateLockFile(lockFilePath)
if err != nil {
pid, err := readTextFile(lockFilePath)
if err == nil {
i, err := strconv.Atoi(pid)
if err == nil {
log.Info("Running instance found, sending SIGTERM and exiting...")
syscall.Kill(i, syscall.SIGTERM)
if *resident {
log.Warnf("Resident instance already running (PID %v)", i)
} else {
log.Infof("Showing resident instance (PID %v)", i)
syscall.Kill(i, syscall.SIGUSR1)
}
}
}
os.Exit(0)
}
defer lockFile.Close()
log.Infof("term: %s", *term)
// LANGUAGE
if *lang == "" && os.Getenv("LANG") != "" {
*lang = strings.Split(os.Getenv("LANG"), ".")[0]
@@ -173,6 +209,29 @@ func main() {
// ENVIRONMENT
configDirectory = configDir()
// Placing the drawer config files in the nwg-panel config directory was a mistake.
// Let's move them to their own location.
oldConfigDirectory, err := oldConfigDir()
if err == nil {
for _, p := range []string{"drawer.css", "preferred-apps.json"} {
if pathExists(path.Join(oldConfigDirectory, p)) {
log.Infof("File %s found in stale location, moving to %s", p, configDirectory)
if !pathExists(path.Join(configDirectory, p)) {
err = os.Rename(path.Join(oldConfigDirectory, p), path.Join(configDirectory, p))
if err == nil {
log.Info("Success")
} else {
log.Warn(err)
}
} else {
log.Warnf("Failed moving %s to %s: path already exists!", path.Join(oldConfigDirectory, p), path.Join(configDirectory, p))
}
}
}
}
// Copy default style sheet if not found
if !pathExists(filepath.Join(configDirectory, "drawer.css")) {
copyFile(filepath.Join(getDataHome(), "nwg-drawer/drawer.css"), filepath.Join(configDirectory, "drawer.css"))
}
@@ -205,12 +264,29 @@ func main() {
// For opening files we use xdg-open. As its configuration is PITA, we may override some associations
// in the ~/.config/nwg-panel/preferred-apps.json file.
paFile := filepath.Join(configDirectory, "preferred-apps.json")
preferredApps, err = loadPreferredApps(paFile)
if err != nil {
log.Error(fmt.Sprintf("Custom associations file %s not found or invalid", paFile))
paFile := path.Join(configDirectory, "preferred-apps.json")
if pathExists(paFile) {
preferredApps, err = loadPreferredApps(paFile)
if err != nil {
log.Infof("Custom associations file %s not found or invalid", paFile)
} else {
log.Infof("Found %v associations in %s", len(preferredApps), paFile)
}
} else {
log.Info(fmt.Sprintf("Found %v associations in %s", len(preferredApps), paFile))
log.Infof("%s file not found", paFile)
}
// Load user-defined paths excluded from file search
exFile := path.Join(configDirectory, "excluded-dirs")
if pathExists(exFile) {
exclusions, err = loadTextFile(exFile)
if err != nil {
log.Infof("Search exclusions file %s not found %s", exFile, err)
} else {
log.Infof("Found %v search exclusions in %s", len(exclusions), exFile)
}
} else {
log.Infof("%s file not found", exFile)
}
// USER INTERFACE
@@ -228,7 +304,7 @@ func main() {
gtk.AddProviderForScreen(screen, cssProvider, gtk.STYLE_PROVIDER_PRIORITY_APPLICATION)
}
win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
win, err = gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
if err != nil {
log.Fatal("Unable to create window:", err)
}
@@ -277,7 +353,11 @@ func main() {
searchEntry.GrabFocus()
searchEntry.SetText("")
} else {
gtk.MainQuit()
if !*resident {
gtk.MainQuit()
} else {
restoreStateAndHide()
}
}
return false
case gdk.KEY_downarrow, gdk.KEY_Up, gdk.KEY_Down, gdk.KEY_Left, gdk.KEY_Right, gdk.KEY_Tab,
@@ -292,18 +372,6 @@ func main() {
}
})
// Close the window on leave, but not immediately, to avoid accidental closes
win.Connect("leave-notify-event", func() {
src = glib.TimeoutAdd(uint(500), func() bool {
gtk.MainQuit()
return false
})
})
win.Connect("enter-notify-event", func() {
cancelClose()
})
/*
In case someone REALLY needed to use X11 - for some stupid Zoom meeting or something, this allows
the drawer to behave properly on Openbox, and possibly somewhere else. For sure not on i3.
@@ -343,13 +411,15 @@ func main() {
resultWindow, _ = gtk.ScrolledWindowNew(nil, nil)
resultWindow.SetEvents(int(gdk.ALL_EVENTS_MASK))
resultWindow.SetPolicy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
resultWindow.Connect("enter-notify-event", func() {
cancelClose()
})
resultWindow.Connect("button-release-event", func(sw *gtk.ScrolledWindow, e *gdk.Event) bool {
btnEvent := gdk.EventButtonNewFromEvent(e)
if btnEvent.Button() == 1 || btnEvent.Button() == 3 {
gtk.MainQuit()
if !*resident {
gtk.MainQuit()
} else {
restoreStateAndHide()
}
return true
}
return false
@@ -394,6 +464,7 @@ func main() {
statusLineWrapper.PackStart(statusLabel, true, false, 0)
win.ShowAll()
if !*noFS {
fileSearchResultWrapper.SetSizeRequest(appFlowBox.GetAllocatedWidth(), 1)
fileSearchResultWrapper.Hide()
@@ -401,8 +472,69 @@ func main() {
if !*noCats {
categoriesWrapper.SetSizeRequest(1, categoriesWrapper.GetAllocatedHeight()*2)
}
if *resident {
win.Hide()
}
t := time.Now()
log.Info(fmt.Sprintf("UI created in %v ms. Thank you for your patience.", t.Sub(timeStart).Milliseconds()))
// Check if showing the window has been requested (SIGUSR1)
glib.TimeoutAdd(uint(1), func() bool {
if showWindowTrigger && win != nil && !win.IsVisible() {
win.ShowAll()
// focus 1st element
b := appFlowBox.GetChildAtIndex(0)
if b != nil {
button, err := b.GetChild()
if err == nil {
button.ToWidget().GrabFocus()
}
}
}
showWindowTrigger = false
// some .desktop file changed
if desktopTrigger {
log.Debug(".desktop file changed")
desktopFiles = listDesktopFiles()
status = parseDesktopFiles(desktopFiles)
appFlowBox = setUpAppsFlowBox(nil, "")
desktopTrigger = false
}
// pinned file changed
if pinnedTrigger {
log.Debug("pinned file changed")
pinnedTrigger = false
pinned, _ = loadTextFile(pinnedFile)
pinnedFlowBox = setUpPinnedFlowBox()
}
return true
})
go watchFiles()
gtk.Main()
}
func restoreStateAndHide() {
timeStart1 := time.Now()
win.Hide()
// clear search
searchEntry.SetText("")
// clear category filter (in gotk3 it means: rebuild, as we have no filtering here)
appFlowBox = setUpAppsFlowBox(nil, "")
for _, btn := range catButtons {
btn.SetImagePosition(gtk.POS_LEFT)
btn.SetSizeRequest(0, 0)
}
// scroll to the top
resultWindow.GetVAdjustment().SetValue(0)
t := time.Now()
log.Debugf(fmt.Sprintf("UI hidden and restored in the backgroud in %v ms", t.Sub(timeStart1).Milliseconds()))
}