func (t *tbfe) renderthread() {
pc := 0
dorender := func() {
defer func() {
if r := recover(); r != nil {
log.Errorf("Panic in renderthread: %v\n%s", r, string(debug.Stack()))
if pc > 1 {
panic(r)
}
pc++
}
}()
termbox.Clear(defaultFg, defaultBg)
t.lock.Lock()
vs := make([]*backend.View, 0, len(t.layout))
ls := make([]layout, 0, len(t.layout))
for v, l := range t.layout {
vs = append(vs, v)
ls = append(ls, l)
}
t.lock.Unlock()
for i, v := range vs {
t.renderView(v, ls[i])
}
termbox.Flush()
}
for range t.dorender {
dorender()
}
}
func GetEditor() *Editor {
edl.Lock()
defer edl.Unlock()
if ed == nil {
ed = &Editor{
cmdHandler: commandHandler{
ApplicationCommands: make(appcmd),
TextCommands: make(textcmd),
WindowCommands: make(wndcmd),
verbose: true,
},
frontend: &DummyFrontend{},
console: &View{
buffer: NewBuffer(),
scratch: true,
},
keyInput: make(chan keys.KeyPress, 32),
}
var err error
if ed.Watcher, err = watch.NewWatcher(); err != nil {
log.Errorf("Couldn't create watcher: %s", err)
}
ed.console.Settings().Set("is_widget", true)
ed.defaultSettings = new(HasSettings)
ed.platformSettings = new(HasSettings)
ed.Settings() // Just to initialize it
ed.defaultBindings = new(keys.HasKeyBindings)
ed.platformBindings = new(keys.HasKeyBindings)
ed.userBindings = new(keys.HasKeyBindings)
log.AddFilter("console", log.DEBUG, log.NewLogWriter(ed.handleLog))
go ed.inputthread()
go ed.Observe()
}
return ed
}
func onInit() {
l := py.NewLock()
defer l.Unlock()
m, err := py.Import("sublime_plugin")
if err != nil {
panic(err)
}
sys, err := py.Import("sys")
if err != nil {
log.Debug(err)
} else {
defer sys.Decref()
}
if watcher, err = watch.NewWatcher(); err != nil {
log.Errorf("Couldn't create watcher: %s", err)
}
// TODO: add all plugins after supporting all commands
// plugins := packages.ScanPlugins(backend.LIME_PACKAGES_PATH, ".py")
// for _, p := range plugins {
// newPlugin(p, m)
// }
newPlugin(packages.NewPlugin(path.Join(backend.LIME_PACKAGES_PATH, "Vintageous"), ".py"), m)
go watcher.Observe()
}
func (w *Window) OpenFile(filename string, flags int) *View {
v := w.NewFile()
v.SetScratch(true)
e := v.BeginEdit()
if fn, err := filepath.Abs(filename); err != nil {
v.Buffer().SetFileName(filename)
} else {
v.Buffer().SetFileName(fn)
}
if d, err := ioutil.ReadFile(filename); err != nil {
log.Errorf("Couldn't load file %s: %s", filename, err)
} else {
v.Insert(e, 0, string(d))
}
v.EndEdit(e)
v.selection.Clear()
v.selection.Add(text.Region{A: 0, B: 0})
v.Settings().Set("lime.last_save_change_count", v.buffer.ChangeCount())
v.SetScratch(false)
OnLoad.Call(v)
w.SetActiveView(v)
return v
}
func (e *Editor) SetClipboard(n string) {
if err := e.clipboardSetter(n); err != nil {
log.Errorf("Could not set clipboard: %v", err)
}
// Keep a local copy in case the system clipboard isn't working
e.clipboard = n
}
func register(cmds []backend.Command) {
ch := backend.GetEditor().CommandHandler()
for _, cmd := range cmds {
if err := ch.RegisterWithDefault(cmd); err != nil {
log.Errorf("Failed to register command: %s", err)
}
}
}
func registerByName(cmds []namedCmd) {
ch := backend.GetEditor().CommandHandler()
for _, cmd := range cmds {
if err := ch.Register(cmd.name, cmd.cmd); err != nil {
log.Errorf("Failed to register command %s: %s", cmd.name, err)
}
}
}
func (w *Window) runCommand(c WindowCommand, name string) error {
defer func() {
if r := recover(); r != nil {
log.Errorf("Paniced while running window command %s %v: %v\n%s", name, c, r, string(debug.Stack()))
}
}()
return c.Run(w)
}
func setColorMode() {
var (
mode256 bool
pal = make([]termbox.RGB, 0, 256)
)
if err := termbox.SetColorMode(termbox.ColorMode256); err != nil {
log.Errorf("Unable to use 256 color mode: %s", err)
} else {
log.Debug("Using 256 color mode")
mode256 = true
}
if !mode256 {
pal = pal[:10] // Not correct, but whatever
pal[termbox.ColorBlack] = termbox.RGB{R: 0, G: 0, B: 0}
pal[termbox.ColorWhite] = termbox.RGB{R: 255, G: 255, B: 255}
pal[termbox.ColorRed] = termbox.RGB{R: 255, G: 0, B: 0}
pal[termbox.ColorGreen] = termbox.RGB{R: 0, G: 255, B: 0}
pal[termbox.ColorBlue] = termbox.RGB{R: 0, G: 0, B: 255}
pal[termbox.ColorMagenta] = termbox.RGB{R: 255, G: 0, B: 255}
pal[termbox.ColorYellow] = termbox.RGB{R: 255, G: 255, B: 0}
pal[termbox.ColorCyan] = termbox.RGB{R: 0, G: 255, B: 255}
diff := func(i, j byte) int {
v := int(i) - int(j)
if v < 0 {
return -v
}
return v
}
palLut = func(col textmate.Color) termbox.Attribute {
mindist := 10000000
mini := 0
for i, c := range pal {
if dist := diff(c.R, col.R) + diff(c.G, col.G) + diff(c.B, col.B); dist < mindist {
mindist = dist
mini = i
}
}
return termbox.Attribute(mini)
}
} else {
palLut = func(col textmate.Color) termbox.Attribute {
tc := termbox.RGB{R: col.R, G: col.G, B: col.B}
for i, c := range pal {
if c == tc {
return termbox.Attribute(i)
}
}
l := len(pal)
log.Debug("Adding colour: %d %+v %+v", l, col, tc)
pal = append(pal, tc)
termbox.SetColorPalette(pal)
return termbox.Attribute(l)
}
}
}
func (e *Editor) GetClipboard() string {
if n, err := e.clipboardGetter(); err == nil {
return n
} else {
log.Errorf("Could not get clipboard: %v", err)
}
return e.clipboard
}
func (p *plugin) load(pkg *packages.Packet) {
if err := pkg.Load(); err != nil {
log.Errorf("Failed to load packet %s: %s", pkg.Name(), err)
} else {
log.Info("Loaded %s", pkg.Name())
if err := watcher.Watch(pkg.Name(), pkg); err != nil {
log.Warn("Couldn't watch %s: %s", pkg.Name(), err)
}
}
}
func newPlugin(pl *packages.Plugin, m *py.Module) (p *plugin) {
p = &plugin{pl, m}
p.FileChanged(p.Name())
if err := watcher.Watch(p.Name(), p); err != nil {
log.Errorf("Couldn't watch %s: %s", p.Name(), err)
}
p.loadKeyBindings()
p.loadSettings()
return
}
// Put back watchers on watching files under the directory
func (w *Watcher) removeDir(name string) {
for p, _ := range w.watched {
if filepath.Dir(p) == name {
if err := w.watch(p); err != nil {
log.Errorf("Could not watch: %s", err)
continue
}
}
}
w.dirs = remove(w.dirs, name)
}
// On plugin reload we will scan for plugin files
// and packets in plugin path
func (p *Plugin) Reload() {
var files []os.FileInfo
log.Info("Reloading plugin %s", p.Name())
f, err := os.Open(p.path)
if err != nil {
log.Errorf("Couldn't open dir: %s", err)
return
}
defer f.Close()
fi, err := f.Readdir(-1)
if err != nil {
log.Errorf("Couldn't read dir: %s", err)
return
}
for _, f := range fi {
if p.suffix != "" && strings.HasSuffix(f.Name(), p.suffix) {
files = append(files, f)
}
}
p.files = files
}
// Remove watchers created on files under this directory because
// one watcher on the parent directory is enough for all of them
func (w *Watcher) flushDir(name string) {
if exist(w.dirs, name) {
return
}
w.dirs = append(w.dirs, name)
for _, p := range w.watchers {
if filepath.Dir(p) == name && !exist(w.dirs, p) {
if err := w.removeWatch(p); err != nil {
log.Errorf("Couldn't unwatch file %s: %s", p, err)
}
}
}
}
// Observe dispatches notifications received by the watcher. This function will
// return when the watcher is closed.
func (w *Watcher) Observe() {
for {
select {
case ev, ok := <-w.wchr.Events:
if !ok {
break
}
func() {
w.lock.Lock()
defer w.lock.Unlock()
w.apply(ev)
name := ev.Name
// If the name refers to a directory run all watched
// callbacks for wathed files under the directory
if exist(w.dirs, name) {
for p, _ := range w.watched {
if filepath.Dir(p) == name {
ev.Name = p
w.apply(ev)
}
}
}
dir := filepath.Dir(name)
// The watcher will be removed if the file is deleted
// so we need to watch the parent directory for when the
// file is created again
if ev.Op&fsnotify.Remove != 0 {
w.watchers = remove(w.watchers, name)
w.lock.Unlock()
w.Watch(dir, nil)
w.lock.Lock()
}
// We will apply parent directory FileChanged callbacks to,
// if one of the files inside the directory has changed
if cbs, exist := w.watched[dir]; ev.Op&fsnotify.Write != 0 && exist {
for _, cb := range cbs {
if c, ok := cb.(FileChangedCallback); ok {
c.FileChanged(dir)
}
}
}
}()
case err, ok := <-w.wchr.Errors:
if !ok {
break
}
log.Errorf("Watcher error: %s", err)
}
}
}
func (w *Window) remove(v *View) {
w.lock.Lock()
defer w.lock.Unlock()
for i, vv := range w.views {
if v == vv {
end := len(w.views) - 1
if i != end {
copy(w.views[i:], w.views[i+1:])
}
w.views = w.views[:end]
return
}
}
log.Errorf("Wanted to remove view %+v, but it doesn't appear to be a child of this window", v)
}
func (e *Editor) remove(w *Window) {
edl.Lock()
defer edl.Unlock()
for i, ww := range e.windows {
if w == ww {
end := len(e.windows) - 1
if i != end {
copy(e.windows[i:], e.windows[i+1:])
}
e.windows = e.windows[:end]
return
}
}
log.Errorf("Wanted to remove window %+v, but it doesn't appear to be a child of this editor", w)
}
func (v *View) runCommand(cmd TextCommand, name string) error {
e := v.BeginEdit()
e.command = name
// e.args = args
e.bypassUndo = cmd.BypassUndo()
defer func() {
v.EndEdit(e)
if r := recover(); r != nil {
log.Errorf("Paniced while running text command %s %v: %v\n%s", name, cmd, r, string(debug.Stack()))
}
}()
p := Prof.Enter("view.cmd." + name)
defer p.Exit()
return cmd.Run(v, e)
}
func (lp *LanguageParser) Parse() (*parser.Node, error) {
sdata := string(lp.data)
rn := parser.Node{P: lp, Name: lp.l.ScopeName}
defer func() {
if r := recover(); r != nil {
log.Errorf("Panic during parse: %v\n", r)
log.Debug("%v", rn)
}
}()
iter := maxiter
for i := 0; i < len(sdata) && iter > 0; iter-- {
pat, ret := lp.l.RootPattern.Cache(sdata, i)
nl := strings.IndexAny(sdata[i:], "\n\r")
if nl != -1 {
nl += i
}
if ret == nil {
break
} else if nl > 0 && nl <= ret[0] {
i = nl
for i < len(sdata) && (sdata[i] == '\n' || sdata[i] == '\r') {
i++
}
} else {
n := pat.CreateNode(sdata, i, lp, ret)
rn.Append(n)
i = n.Range.B
}
}
rn.UpdateRange()
if len(sdata) != 0 {
lut := make([]int, len(sdata)+1)
j := 0
for i := range sdata {
lut[i] = j
j++
}
lut[len(sdata)] = len(lp.data)
lp.patch(lut, &rn)
}
if iter == 0 {
panic("reached maximum number of iterations")
}
return &rn, nil
}
// Returns packet file data if any error occurred
// on reading file we will return nil
func (p *Packet) Get() interface{} {
e := []byte(`{}`)
if p.group() == "keymap" {
e = []byte(`[]`)
}
if _, err := os.Stat(p.path); os.IsNotExist(err) {
log.Finest("%s doesn't exist yet", p.path)
return e
}
d, err := ioutil.ReadFile(p.path)
if err != nil {
log.Errorf("Couldn't read file: %s", err)
return e
}
return d
}
func (v *View) FileChanged(filename string) {
log.Finest("Reloading %s", filename)
if saving, ok := v.Settings().Get("lime.saving", false).(bool); ok && saving {
// This reload was triggered by ourselves saving to this file, so don't reload it
return
}
if !GetEditor().Frontend().OkCancelDialog("File was changed by another program, reload?", "reload") {
return
}
if d, err := ioutil.ReadFile(filename); err != nil {
log.Errorf("Could not read file: %s\n. Error was: %v", filename, err)
} else {
edit := v.BeginEdit()
end := v.buffer.Size()
v.Replace(edit, Region{0, end}, string(d))
v.EndEdit(edit)
}
}
func (t *tbfe) render(w io.Writer) {
defer func() {
if r := recover(); r != nil {
log.Errorf("Panic in renderthread: %v\n%s", r, string(debug.Stack()))
if pc > 1 {
panic(r)
}
pc++
}
}()
vs := make([]*backend.View, 0, len(t.layout))
l := make([]layout, 0, len(t.layout))
for k, v := range t.layout {
vs = append(vs, k)
l = append(l, v)
}
for i, v := range vs {
t.renderView(w, v, l[i])
}
// runes := []rune(t.status_message)
}
func (q *qmlDialog) Show(msg, icon string) (ret int) {
src := `import QtQuick 2.2
import QtQuick.Dialogs 1.1
Item {MessageDialog {
objectName: "realDialog"
id: messageDialog
title: "May I have your attention please"
text: "` + msg + `"
icon: ` + icon + `
standardButtons: StandardButton.Ok | StandardButton.Cancel
Component.onCompleted: visible = true
}}`
engine := qml.NewEngine()
engine.Context().SetVar("q", q)
component, err := engine.LoadString("dialog.qml", src)
if err != nil {
log.Errorf("Unable to instanciate dialog: %s", err)
return 0
}
var wg sync.WaitGroup
wg.Add(1)
obj := component.Create(nil)
obj = obj.ObjectByName("realDialog")
obj.On("accepted", func() {
ret = 1
wg.Done()
})
obj.On("rejected", func() {
ret = 0
wg.Done()
})
wg.Wait()
engine.Destroy()
log.Debug("returning %d", ret)
return
}
// parsethread() would be the go-routine used for dealing with reparsing the
// current buffer when it has been modified. Each opened view has its own
// go-routine parsethread() which sits idle and waits for requests to be sent
// on this view's reparseChan.
//
// The Buffer's ChangeCount, as well as the parse request's "forced" attribute
// is used to determined if a parse actually needs to happen or not.
//
// If it is decided that a reparse should take place, a snapshot of the Buffer is
// taken and a parse is performed. Upon completion of this parse operation,
// and if the snapshot of the buffer has not already become outdated,
// then the regions of the view associated with syntax highlighting is updated.
//
// Changes made to the Buffer during the time when there is no accurate
// parse of the buffer is a monkey-patched version of the old syntax highlighting
// regions, which in most instances will be accurate.
//
// See package lime-backend/lib/parser for more details.
func (v *View) parsethread() {
pc := 0
lastParse := -1
doparse := func() (ret bool) {
p := Prof.Enter("syntax.parse")
defer p.Exit()
defer func() {
if r := recover(); r != nil {
log.Errorf("Panic in parse thread: %v\n%s", r, string(debug.Stack()))
if pc > 0 {
panic(r)
}
pc++
}
}()
b := v.buffer
sub := b.Substr(Region{0, b.Size()})
source, _ := v.Settings().Get("syntax", "").(string)
if len(source) == 0 {
return
}
// TODO: Allow other parsers instead of this hardcoded textmate version
pr, err := textmate.NewLanguageParser(source, sub)
if err != nil {
log.Errorf("Couldn't parse: %v", err)
return
}
syn, err := parser.NewSyntaxHighlighter(pr)
if err != nil {
log.Errorf("Couldn't create syntaxhighlighter: %v", err)
return
}
// Only set if it isn't invalid already, otherwise the
// current syntax highlighting will be more accurate
// as it will have had incremental adjustments done to it
if v.buffer.ChangeCount() != lastParse {
return
}
v.lock.Lock()
defer v.lock.Unlock()
v.syntax = syn
for k := range v.regions {
if strings.HasPrefix(k, "lime.syntax") {
delete(v.regions, k)
}
}
for k, v2 := range syn.Flatten() {
if v2.Regions.HasNonEmpty() {
v.regions[k] = v2
}
}
return true
}
v.lock.Lock()
ch := v.reparseChan
v.lock.Unlock()
defer v.cleanup()
if ch == nil {
return
}
for pr := range ch {
if cc := v.buffer.ChangeCount(); lastParse != cc || pr.forced {
lastParse = cc
if doparse() {
v.Settings().Set("lime.syntax.updated", lastParse)
}
}
}
}
func (e *Editor) inputthread() {
pc := 0
var lastBindings keys.KeyBindings
doinput := func(kp keys.KeyPress) {
defer func() {
if r := recover(); r != nil {
log.Errorf("Panic in inputthread: %v\n%s", r, string(debug.Stack()))
if pc > 0 {
panic(r)
}
pc++
}
}()
p := Prof.Enter("hi")
defer p.Exit()
lvl := log.FINE
if e.logInput {
lvl++
}
log.Logf(lvl, "Key: %v", kp)
if lastBindings.SeqIndex() == 0 {
lastBindings = *e.KeyBindings()
}
try_again:
possible_actions := lastBindings.Filter(kp)
lastBindings = possible_actions
// TODO?
var (
wnd *Window
v *View
)
if wnd = e.ActiveWindow(); wnd != nil {
v = wnd.ActiveView()
}
qc := func(key string, operator Op, operand interface{}, match_all bool) bool {
return OnQueryContext.Call(v, key, operator, operand, match_all) == True
}
if action := possible_actions.Action(qc); action != nil {
p2 := Prof.Enter("hi.perform")
e.RunCommand(action.Command, action.Args)
p2.Exit()
} else if possible_actions.SeqIndex() > 1 {
// TODO: this disables having keyBindings with more than 2 key sequence
lastBindings = *e.KeyBindings()
goto try_again
} else if kp.IsCharacter() {
p2 := Prof.Enter("hi.character")
log.Finest("[editor.inputthread] kp: |%s|, pos: %v", kp.Text, possible_actions)
if err := e.CommandHandler().RunTextCommand(v, "insert", Args{"characters": kp.Text}); err != nil {
log.Debug("Couldn't run textcommand: %s", err)
}
p2.Exit()
}
}
for kp := range e.keyInput {
doinput(kp)
}
}
func (t *qmlfrontend) loop() (err error) {
backend.OnNew.Add(t.onNew)
backend.OnClose.Add(t.onClose)
backend.OnLoad.Add(t.onLoad)
backend.OnSelectionModified.Add(t.onSelectionModified)
ed := backend.GetEditor()
ed.SetFrontend(t)
ed.LogInput(false)
ed.LogCommands(false)
c := ed.Console()
t.Console = &frontendView{bv: c}
c.Buffer().AddObserver(t.Console)
c.Buffer().AddObserver(t)
go ed.Init()
var (
engine *qml.Engine
component qml.Object
// WaitGroup keeping track of open windows
wg sync.WaitGroup
)
// create and setup a new engine, destroying
// the old one if one exists.
//
// This is needed to re-load qml files to get
// the new file contents from disc as otherwise
// the old file would still be what is referenced.
newEngine := func() (err error) {
if engine != nil {
log.Debug("calling destroy")
// TODO(.): calling this appears to make the editor *very* crash-prone, just let it leak for now
// engine.Destroy()
engine = nil
}
log.Debug("calling newEngine")
engine = qml.NewEngine()
engine.On("quit", t.Quit)
log.Debug("setvar frontend")
engine.Context().SetVar("frontend", t)
log.Debug("setvar editor")
engine.Context().SetVar("editor", backend.GetEditor())
log.Debug("loadfile")
component, err = engine.LoadFile(qmlMainFile)
if err != nil {
return err
}
limeViewComponent, err = engine.LoadFile(qmlViewFile)
return
}
if err := newEngine(); err != nil {
log.Error(err)
}
backend.OnNewWindow.Add(func(w *backend.Window) {
fw := &frontendWindow{bw: w}
t.windows[w] = fw
if component != nil {
fw.launch(&wg, component)
}
})
// TODO: should be done backend side
if sc, err := textmate.LoadTheme("../packages/themes/TextMate-Themes/Monokai.tmTheme"); err != nil {
log.Error(err)
} else {
scheme = sc
}
defer func() {
fmt.Println(util.Prof)
}()
w := ed.NewWindow()
v := w.OpenFile("main.go", 0)
// TODO: should be done backend side
v.SetSyntaxFile("../packages/go.tmbundle/Syntaxes/Go.tmLanguage")
watch, err := fsnotify.NewWatcher()
if err != nil {
log.Errorf("Unable to create file watcher: %s", err)
return
}
defer watch.Close()
watch.Watch(".")
defer watch.RemoveWatch(".")
reloadRequested := false
go func() {
for {
select {
case ev := <-watch.Event:
if ev != nil && strings.HasSuffix(ev.Name, ".qml") && ev.IsModify() && !ev.IsAttrib() {
reloadRequested = true
t.Quit()
}
}
}
}()
for {
// Reset reload status
reloadRequested = false
log.Debug("Waiting for all windows to close")
// wg would be the WaitGroup all windows belong to, so first we wait for
// all windows to close.
wg.Wait()
log.Debug("All windows closed. reloadRequest: %v", reloadRequested)
// then we check if there's a reload request in the pipe
if !reloadRequested || len(t.windows) == 0 {
// This would be a genuine exit; all windows closed by the user
break
}
// *We* closed all windows because we want to reload freshly changed qml
// files.
for {
log.Debug("Calling newEngine")
if err := newEngine(); err != nil {
// Reset reload status
reloadRequested = false
log.Error(err)
for !reloadRequested {
// This loop allows us to re-try reloading
// if there was an error in the file this time,
// we just loop around again when we receive the next
// reload request (ie on the next save of the file).
time.Sleep(time.Second)
}
continue
}
log.Debug("break")
break
}
log.Debug("re-launching all windows")
// Succeeded loading the file, re-launch all windows
for _, v := range t.windows {
v.launch(&wg, component)
}
}
return
}
func (t *tbfe) loop() {
backend.OnNew.Add(func(v *backend.View) {
v.Settings().AddOnChange("lime.frontend.html.render", func(name string) {
if name != "lime.syntax.updated" {
return
}
t.SetDirty()
})
})
// TODO: maybe not useful?
/*backend.OnModified.Add(func(v *backend.View) {
t.SetDirty()
})*/
backend.OnSelectionModified.Add(func(v *backend.View) {
t.BroadcastData(t.GetSelectionMessage(v))
})
ed := backend.GetEditor()
ed.SetFrontend(t)
ed.LogInput(false)
ed.LogCommands(false)
c := ed.Console()
if sc, err := textmate.LoadTheme(path.Join(backend.LIME_PACKAGES_PATH, "themes", "TextMate-Themes", "Monokai.tmTheme")); err != nil {
log.Error(err)
} else {
scheme = sc
}
defer func() {
fmt.Println(util.Prof)
}()
w := ed.NewWindow()
v := w.OpenFile("main.go", 0)
//v.Settings().Set("trace", true)
v.Settings().Set("syntax", path.Join(backend.LIME_PACKAGES_PATH, "go.tmbundle", "Syntaxes", "Go.tmLanguage"))
c.Buffer().AddObserver(t)
sel := v.Sel()
sel.Clear()
// end := v.Buffer().Size() - 2
sel.Add(Region{0, 0})
// sel.Add(Region{end - 22, end - 22})
// sel.Add(Region{end - 16, end - 20})
// sel.Add(Region{end - 13, end - 10})
{
w, h := 800, 600
t.lock.Lock()
t.layout[v] = layout{0, 0, w, h - console_height - 1, Region{}, 0}
t.layout[c] = layout{0, h - console_height + 1, w, console_height - 5, Region{}, 0}
t.lock.Unlock()
t.Show(v, Region{1, 1})
}
t.Show(v, Region{100, 100})
t.Show(v, Region{1, 1})
go ed.Init()
log.Debug("Serving on port %d", *port)
http.HandleFunc("/", t.ServeHTTP)
http.HandleFunc("/view", t.view)
http.HandleFunc("/key", t.key)
http.HandleFunc("/themes/", t.theme)
http.Handle("/ws", websocket.Handler(t.WebsocketServer))
if err := http.ListenAndServe(fmt.Sprintf("localhost:%d", *port), nil); err != nil {
log.Errorf("Error serving: %s", err)
}
log.Debug("Done")
}
// Ends the given Edit object.
func (v *View) EndEdit(edit *Edit) {
if edit.invalid {
// This happens when nesting Edits and the child Edit ends after the parent edit.
log.Fine("This edit has already been invalidated: %v, %v", edit, v.editstack)
return
}
// Find the position of this Edit object in this View's Edit stack.
// If plugins, commands, etc are well-behaved the ended edit should be
// last in the stack, but shit happens and we cannot count on this being the case.
i := len(v.editstack) - 1
for i := len(v.editstack) - 1; i >= 0; i-- {
if v.editstack[i] == edit {
break
}
}
if i == -1 {
// TODO(.): Under what instances does this happen again?
log.Errorf("This edit isn't even in the stack... where did it come from? %v, %v", edit, v.editstack)
return
}
var selection_modified bool
if l := len(v.editstack) - 1; i != l {
// TODO(.): See TODO in BeginEdit
log.Errorf("This edit wasn't last in the stack... %d != %d: %v, %v", i, l, edit, v.editstack)
}
// Invalidate all Edits "below" and including this Edit.
for j := len(v.editstack) - 1; j >= i; j-- {
current_edit := v.editstack[j]
current_edit.invalid = true
sel_same := reflect.DeepEqual(*v.Sel(), current_edit.savedSel)
buf_same := v.buffer.ChangeCount() == current_edit.savedCount
eq := (sel_same && buf_same && current_edit.composite.Len() == 0)
if !eq && !sel_same {
selection_modified = true
}
if v.IsScratch() || current_edit.bypassUndo || eq {
continue
}
switch {
case i == 0:
// Well-behaved, no nested edits!
fallthrough
case j != i:
// BOO! Someone began another Edit without finishing the first one.
// In this instance, the parent Edit ended before the child.
// TODO(.): What would be the correct way to handle this?
v.undoStack.Add(edit)
default:
// BOO! Also poorly-behaved. This Edit object began after the parent began,
// but was finished before the parent finished.
//
// Add it as a child of the parent Edit so that undoing the parent
// will undo this edit as well.
v.editstack[i-1].composite.Add(current_edit)
}
}
// Pop this Edit and all the children off the Edit stack.
v.editstack = v.editstack[:i]
if selection_modified {
OnSelectionModified.Call(v)
}
}