10 shellquote "github.com/kballard/go-shellquote"
11 "github.com/zyedidia/clipboard"
12 "github.com/zyedidia/micro/internal/buffer"
13 "github.com/zyedidia/micro/internal/config"
14 "github.com/zyedidia/micro/internal/screen"
15 "github.com/zyedidia/micro/internal/shell"
16 "github.com/zyedidia/micro/internal/util"
17 "github.com/zyedidia/tcell"
20 // ScrollUp is not an action
21 func (h *BufPane) ScrollUp(n int) {
31 // ScrollDown is not an action
32 func (h *BufPane) ScrollDown(n int) {
34 if v.StartLine <= h.Buf.LinesNum()-1-n {
40 // MousePress is the event that should happen when a normal click happens
41 // This is almost always bound to left click
42 func (h *BufPane) MousePress(e *tcell.EventMouse) bool {
44 mx, my := e.Position()
45 mouseLoc := h.LocFromVisual(buffer.Loc{mx, my})
46 h.Cursor.Loc = mouseLoc
48 if b.NumCursors() > 1 {
51 h.Cursor = h.Buf.GetActiveCursor()
52 h.Cursor.Loc = mouseLoc
54 if time.Since(h.lastClickTime)/time.Millisecond < config.DoubleClickThreshold && (mouseLoc.X == h.lastLoc.X && mouseLoc.Y == h.lastLoc.Y) {
57 h.lastClickTime = time.Now()
63 h.Cursor.CopySelection("primary")
66 h.lastClickTime = time.Now()
72 h.Cursor.CopySelection("primary")
77 h.lastClickTime = time.Now()
79 h.Cursor.OrigSelection[0] = h.Cursor.Loc
80 h.Cursor.CurSelection[0] = h.Cursor.Loc
81 h.Cursor.CurSelection[1] = h.Cursor.Loc
83 h.mouseReleased = false
84 } else if !h.mouseReleased {
86 h.Cursor.AddLineToSelection()
87 } else if h.doubleClick {
88 h.Cursor.AddWordToSelection()
90 h.Cursor.SetSelectionEnd(h.Cursor.Loc)
94 h.Cursor.StoreVisualX()
99 // ScrollUpAction scrolls the view up
100 func (h *BufPane) ScrollUpAction() bool {
101 h.ScrollUp(util.IntOpt(h.Buf.Settings["scrollspeed"]))
105 // ScrollDownAction scrolls the view up
106 func (h *BufPane) ScrollDownAction() bool {
107 h.ScrollDown(util.IntOpt(h.Buf.Settings["scrollspeed"]))
111 // Center centers the view on the cursor
112 func (h *BufPane) Center() bool {
114 v.StartLine = h.Cursor.Y - v.Height/2
115 if v.StartLine+v.Height > h.Buf.LinesNum() {
116 v.StartLine = h.Buf.LinesNum() - v.Height
126 // CursorUp moves the cursor up
127 func (h *BufPane) CursorUp() bool {
128 h.Cursor.Deselect(true)
134 // CursorDown moves the cursor down
135 func (h *BufPane) CursorDown() bool {
136 h.Cursor.Deselect(true)
142 // CursorLeft moves the cursor left
143 func (h *BufPane) CursorLeft() bool {
144 if h.Cursor.HasSelection() {
145 h.Cursor.Deselect(true)
147 tabstospaces := h.Buf.Settings["tabstospaces"].(bool)
148 tabmovement := h.Buf.Settings["tabmovement"].(bool)
149 if tabstospaces && tabmovement {
150 tabsize := int(h.Buf.Settings["tabsize"].(float64))
151 line := h.Buf.LineBytes(h.Cursor.Y)
152 if h.Cursor.X-tabsize >= 0 && util.IsSpaces(line[h.Cursor.X-tabsize:h.Cursor.X]) && util.IsBytesWhitespace(line[0:h.Cursor.X-tabsize]) {
153 for i := 0; i < tabsize; i++ {
167 // CursorRight moves the cursor right
168 func (h *BufPane) CursorRight() bool {
169 if h.Cursor.HasSelection() {
170 h.Cursor.Deselect(false)
171 h.Cursor.Loc = h.Cursor.Loc.Move(1, h.Buf)
173 tabstospaces := h.Buf.Settings["tabstospaces"].(bool)
174 tabmovement := h.Buf.Settings["tabmovement"].(bool)
175 if tabstospaces && tabmovement {
176 tabsize := int(h.Buf.Settings["tabsize"].(float64))
177 line := h.Buf.LineBytes(h.Cursor.Y)
178 if h.Cursor.X+tabsize < utf8.RuneCount(line) && util.IsSpaces(line[h.Cursor.X:h.Cursor.X+tabsize]) && util.IsBytesWhitespace(line[0:h.Cursor.X]) {
179 for i := 0; i < tabsize; i++ {
194 // WordRight moves the cursor one word to the right
195 func (h *BufPane) WordRight() bool {
196 h.Cursor.Deselect(false)
202 // WordLeft moves the cursor one word to the left
203 func (h *BufPane) WordLeft() bool {
204 h.Cursor.Deselect(true)
210 // SelectUp selects up one line
211 func (h *BufPane) SelectUp() bool {
212 if !h.Cursor.HasSelection() {
213 h.Cursor.OrigSelection[0] = h.Cursor.Loc
216 h.Cursor.SelectTo(h.Cursor.Loc)
221 // SelectDown selects down one line
222 func (h *BufPane) SelectDown() bool {
223 if !h.Cursor.HasSelection() {
224 h.Cursor.OrigSelection[0] = h.Cursor.Loc
227 h.Cursor.SelectTo(h.Cursor.Loc)
232 // SelectLeft selects the character to the left of the cursor
233 func (h *BufPane) SelectLeft() bool {
236 if loc.GreaterThan(count) {
239 if !h.Cursor.HasSelection() {
240 h.Cursor.OrigSelection[0] = loc
243 h.Cursor.SelectTo(h.Cursor.Loc)
248 // SelectRight selects the character to the right of the cursor
249 func (h *BufPane) SelectRight() bool {
252 if loc.GreaterThan(count) {
255 if !h.Cursor.HasSelection() {
256 h.Cursor.OrigSelection[0] = loc
259 h.Cursor.SelectTo(h.Cursor.Loc)
264 // SelectWordRight selects the word to the right of the cursor
265 func (h *BufPane) SelectWordRight() bool {
266 if !h.Cursor.HasSelection() {
267 h.Cursor.OrigSelection[0] = h.Cursor.Loc
270 h.Cursor.SelectTo(h.Cursor.Loc)
275 // SelectWordLeft selects the word to the left of the cursor
276 func (h *BufPane) SelectWordLeft() bool {
277 if !h.Cursor.HasSelection() {
278 h.Cursor.OrigSelection[0] = h.Cursor.Loc
281 h.Cursor.SelectTo(h.Cursor.Loc)
286 // StartOfLine moves the cursor to the start of the text of the line
287 func (h *BufPane) StartOfText() bool {
288 h.Cursor.Deselect(true)
289 h.Cursor.StartOfText()
294 // StartOfLine moves the cursor to the start of the line
295 func (h *BufPane) StartOfLine() bool {
296 h.Cursor.Deselect(true)
302 // EndOfLine moves the cursor to the end of the line
303 func (h *BufPane) EndOfLine() bool {
304 h.Cursor.Deselect(true)
310 // SelectLine selects the entire current line
311 func (h *BufPane) SelectLine() bool {
312 h.Cursor.SelectLine()
317 // SelectToStartOfText selects to the start of the text on the current line
318 func (h *BufPane) SelectToStartOfText() bool {
319 if !h.Cursor.HasSelection() {
320 h.Cursor.OrigSelection[0] = h.Cursor.Loc
322 h.Cursor.StartOfText()
323 h.Cursor.SelectTo(h.Cursor.Loc)
328 // SelectToStartOfLine selects to the start of the current line
329 func (h *BufPane) SelectToStartOfLine() bool {
330 if !h.Cursor.HasSelection() {
331 h.Cursor.OrigSelection[0] = h.Cursor.Loc
334 h.Cursor.SelectTo(h.Cursor.Loc)
339 // SelectToEndOfLine selects to the end of the current line
340 func (h *BufPane) SelectToEndOfLine() bool {
341 if !h.Cursor.HasSelection() {
342 h.Cursor.OrigSelection[0] = h.Cursor.Loc
345 h.Cursor.SelectTo(h.Cursor.Loc)
350 // ParagraphPrevious moves the cursor to the previous empty line, or beginning of the buffer if there's none
351 func (h *BufPane) ParagraphPrevious() bool {
353 for line = h.Cursor.Y; line > 0; line-- {
354 if len(h.Buf.LineBytes(line)) == 0 && line != h.Cursor.Y {
360 // If no empty line found. move cursor to end of buffer
362 h.Cursor.Loc = h.Buf.Start()
368 // ParagraphNext moves the cursor to the next empty line, or end of the buffer if there's none
369 func (h *BufPane) ParagraphNext() bool {
371 for line = h.Cursor.Y; line < h.Buf.LinesNum(); line++ {
372 if len(h.Buf.LineBytes(line)) == 0 && line != h.Cursor.Y {
378 // If no empty line found. move cursor to end of buffer
379 if line == h.Buf.LinesNum() {
380 h.Cursor.Loc = h.Buf.End()
386 // Retab changes all tabs to spaces or all spaces to tabs depending
387 // on the user's settings
388 func (h *BufPane) Retab() bool {
394 // CursorStart moves the cursor to the start of the buffer
395 func (h *BufPane) CursorStart() bool {
396 h.Cursor.Deselect(true)
403 // CursorEnd moves the cursor to the end of the buffer
404 func (h *BufPane) CursorEnd() bool {
405 h.Cursor.Deselect(true)
406 h.Cursor.Loc = h.Buf.End()
407 h.Cursor.StoreVisualX()
412 // SelectToStart selects the text from the cursor to the start of the buffer
413 func (h *BufPane) SelectToStart() bool {
414 if !h.Cursor.HasSelection() {
415 h.Cursor.OrigSelection[0] = h.Cursor.Loc
418 h.Cursor.SelectTo(h.Buf.Start())
423 // SelectToEnd selects the text from the cursor to the end of the buffer
424 func (h *BufPane) SelectToEnd() bool {
425 if !h.Cursor.HasSelection() {
426 h.Cursor.OrigSelection[0] = h.Cursor.Loc
429 h.Cursor.SelectTo(h.Buf.End())
434 // InsertNewline inserts a newline plus possible some whitespace if autoindent is on
435 func (h *BufPane) InsertNewline() bool {
437 if h.Cursor.HasSelection() {
438 h.Cursor.DeleteSelection()
439 h.Cursor.ResetSelection()
442 ws := util.GetLeadingWhitespace(h.Buf.LineBytes(h.Cursor.Y))
444 h.Buf.Insert(h.Cursor.Loc, "\n")
447 if h.Buf.Settings["autoindent"].(bool) {
451 h.Buf.Insert(h.Cursor.Loc, string(ws))
452 // for i := 0; i < len(ws); i++ {
456 // Remove the whitespaces if keepautoindent setting is off
457 if util.IsSpacesOrTabs(h.Buf.LineBytes(h.Cursor.Y-1)) && !h.Buf.Settings["keepautoindent"].(bool) {
458 line := h.Buf.LineBytes(h.Cursor.Y - 1)
459 h.Buf.Remove(buffer.Loc{X: 0, Y: h.Cursor.Y - 1}, buffer.Loc{X: utf8.RuneCount(line), Y: h.Cursor.Y - 1})
462 h.Cursor.LastVisualX = h.Cursor.GetVisualX()
467 // Backspace deletes the previous character
468 func (h *BufPane) Backspace() bool {
469 if h.Cursor.HasSelection() {
470 h.Cursor.DeleteSelection()
471 h.Cursor.ResetSelection()
472 } else if h.Cursor.Loc.GreaterThan(h.Buf.Start()) {
473 // We have to do something a bit hacky here because we want to
474 // delete the line by first moving left and then deleting backwards
475 // but the undo redo would place the cursor in the wrong place
476 // So instead we move left, save the position, move back, delete
477 // and restore the position
479 // If the user is using spaces instead of tabs and they are deleting
480 // whitespace at the start of the line, we should delete as if it's a
481 // tab (tabSize number of spaces)
482 lineStart := util.SliceStart(h.Buf.LineBytes(h.Cursor.Y), h.Cursor.X)
483 tabSize := int(h.Buf.Settings["tabsize"].(float64))
484 if h.Buf.Settings["tabstospaces"].(bool) && util.IsSpaces(lineStart) && len(lineStart) != 0 && utf8.RuneCount(lineStart)%tabSize == 0 {
486 h.Buf.Remove(loc.Move(-tabSize, h.Buf), loc)
489 h.Buf.Remove(loc.Move(-1, h.Buf), loc)
492 h.Cursor.LastVisualX = h.Cursor.GetVisualX()
497 // DeleteWordRight deletes the word to the right of the cursor
498 func (h *BufPane) DeleteWordRight() bool {
500 if h.Cursor.HasSelection() {
501 h.Cursor.DeleteSelection()
502 h.Cursor.ResetSelection()
508 // DeleteWordLeft deletes the word to the left of the cursor
509 func (h *BufPane) DeleteWordLeft() bool {
511 if h.Cursor.HasSelection() {
512 h.Cursor.DeleteSelection()
513 h.Cursor.ResetSelection()
519 // Delete deletes the next character
520 func (h *BufPane) Delete() bool {
521 if h.Cursor.HasSelection() {
522 h.Cursor.DeleteSelection()
523 h.Cursor.ResetSelection()
526 if loc.LessThan(h.Buf.End()) {
527 h.Buf.Remove(loc, loc.Move(1, h.Buf))
534 // IndentSelection indents the current selection
535 func (h *BufPane) IndentSelection() bool {
536 if h.Cursor.HasSelection() {
537 start := h.Cursor.CurSelection[0]
538 end := h.Cursor.CurSelection[1]
540 start, end = end, start
541 h.Cursor.SetSelectionStart(start)
542 h.Cursor.SetSelectionEnd(end)
546 endY := end.Move(-1, h.Buf).Y
547 endX := end.Move(-1, h.Buf).X
548 tabsize := int(h.Buf.Settings["tabsize"].(float64))
549 indentsize := len(h.Buf.IndentString(tabsize))
550 for y := startY; y <= endY; y++ {
551 if len(h.Buf.LineBytes(y)) > 0 {
552 h.Buf.Insert(buffer.Loc{X: 0, Y: y}, h.Buf.IndentString(tabsize))
553 if y == startY && start.X > 0 {
554 h.Cursor.SetSelectionStart(start.Move(indentsize, h.Buf))
557 h.Cursor.SetSelectionEnd(buffer.Loc{X: endX + indentsize + 1, Y: endY})
561 h.Buf.RelocateCursors()
569 // OutdentLine moves the current line back one indentation
570 func (h *BufPane) OutdentLine() bool {
571 if h.Cursor.HasSelection() {
575 for x := 0; x < len(h.Buf.IndentString(util.IntOpt(h.Buf.Settings["tabsize"]))); x++ {
576 if len(util.GetLeadingWhitespace(h.Buf.LineBytes(h.Cursor.Y))) == 0 {
579 h.Buf.Remove(buffer.Loc{X: 0, Y: h.Cursor.Y}, buffer.Loc{X: 1, Y: h.Cursor.Y})
581 h.Buf.RelocateCursors()
586 // OutdentSelection takes the current selection and moves it back one indent level
587 func (h *BufPane) OutdentSelection() bool {
588 if h.Cursor.HasSelection() {
589 start := h.Cursor.CurSelection[0]
590 end := h.Cursor.CurSelection[1]
592 start, end = end, start
593 h.Cursor.SetSelectionStart(start)
594 h.Cursor.SetSelectionEnd(end)
598 endY := end.Move(-1, h.Buf).Y
599 for y := startY; y <= endY; y++ {
600 for x := 0; x < len(h.Buf.IndentString(util.IntOpt(h.Buf.Settings["tabsize"]))); x++ {
601 if len(util.GetLeadingWhitespace(h.Buf.LineBytes(y))) == 0 {
604 h.Buf.Remove(buffer.Loc{X: 0, Y: y}, buffer.Loc{X: 1, Y: y})
607 h.Buf.RelocateCursors()
615 // Autocomplete cycles the suggestions and performs autocompletion if there are suggestions
616 func (h *BufPane) Autocomplete() bool {
619 if h.Cursor.HasSelection() {
623 if b.HasSuggestions {
624 b.CycleAutocomplete(true)
627 return b.Autocomplete(buffer.BufferComplete)
630 // CycleAutocompleteBack cycles back in the autocomplete suggestion list
631 func (h *BufPane) CycleAutocompleteBack() bool {
632 if h.Cursor.HasSelection() {
636 if h.Buf.HasSuggestions {
637 h.Buf.CycleAutocomplete(false)
643 // InsertTab inserts a tab or spaces
644 func (h *BufPane) InsertTab() bool {
646 indent := b.IndentString(util.IntOpt(b.Settings["tabsize"]))
647 tabBytes := len(indent)
648 bytesUntilIndent := tabBytes - (h.Cursor.GetVisualX() % tabBytes)
649 b.Insert(h.Cursor.Loc, indent[:bytesUntilIndent])
654 // SaveAll saves all open buffers
655 func (h *BufPane) SaveAll() bool {
656 for _, b := range buffer.OpenBuffers {
662 // Save the buffer to disk
663 func (h *BufPane) Save() bool {
664 // If this is an empty buffer, ask for a filename
665 if h.Buf.Path == "" {
668 noPrompt := h.saveBufToFile(h.Buf.Path, "Save")
677 // SaveAs saves the buffer to disk with the given name
678 func (h *BufPane) SaveAs() bool {
679 InfoBar.Prompt("Filename: ", "", "Save", nil, func(resp string, canceled bool) {
681 // the filename might or might not be quoted, so unquote first then join the strings.
682 args, err := shellquote.Split(resp)
684 InfoBar.Error("Error parsing arguments: ", err)
688 InfoBar.Error("No filename given")
691 filename := strings.Join(args, " ")
692 noPrompt := h.saveBufToFile(filename, "SaveAs")
694 h.completeAction("SaveAs")
701 // This function saves the buffer to `filename` and changes the buffer's path and name
702 // to `filename` if the save is successful
703 func (h *BufPane) saveBufToFile(filename string, action string) bool {
704 err := h.Buf.SaveAs(filename)
706 if strings.HasSuffix(err.Error(), "permission denied") {
707 InfoBar.YNPrompt("Permission denied. Do you want to save this file using sudo? (y,n)", func(yes, canceled bool) {
708 if yes && !canceled {
709 err = h.Buf.SaveAsWithSudo(filename)
713 h.Buf.Path = filename
714 h.Buf.SetName(filename)
715 InfoBar.Message("Saved " + filename)
717 h.completeAction(action)
725 h.Buf.Path = filename
726 h.Buf.SetName(filename)
727 InfoBar.Message("Saved " + filename)
732 // Find opens a prompt and searches forward for the input
733 func (h *BufPane) Find() bool {
734 h.searchOrig = h.Cursor.Loc
735 InfoBar.Prompt("Find: ", "", "Find", func(resp string) {
737 match, found, _ := h.Buf.FindNext(resp, h.Buf.Start(), h.Buf.End(), h.searchOrig, true, true)
739 h.Cursor.SetSelectionStart(match[0])
740 h.Cursor.SetSelectionEnd(match[1])
741 h.Cursor.OrigSelection[0] = h.Cursor.CurSelection[0]
742 h.Cursor.OrigSelection[1] = h.Cursor.CurSelection[1]
743 h.Cursor.GotoLoc(match[1])
745 h.Cursor.GotoLoc(h.searchOrig)
746 h.Cursor.ResetSelection()
749 }, func(resp string, canceled bool) {
752 match, found, err := h.Buf.FindNext(resp, h.Buf.Start(), h.Buf.End(), h.searchOrig, true, true)
757 h.Cursor.SetSelectionStart(match[0])
758 h.Cursor.SetSelectionEnd(match[1])
759 h.Cursor.OrigSelection[0] = h.Cursor.CurSelection[0]
760 h.Cursor.OrigSelection[1] = h.Cursor.CurSelection[1]
761 h.Cursor.GotoLoc(h.Cursor.CurSelection[1])
764 h.Cursor.ResetSelection()
765 InfoBar.Message("No matches found")
768 h.Cursor.ResetSelection()
776 // FindNext searches forwards for the last used search term
777 func (h *BufPane) FindNext() bool {
778 // If the cursor is at the start of a selection and we search we want
779 // to search from the end of the selection in the case that
780 // the selection is a search result in which case we wouldn't move at
781 // at all which would be bad
782 searchLoc := h.Cursor.Loc
783 if h.Cursor.HasSelection() {
784 searchLoc = h.Cursor.CurSelection[1]
786 match, found, err := h.Buf.FindNext(h.lastSearch, h.Buf.Start(), h.Buf.End(), searchLoc, true, true)
791 h.Cursor.SetSelectionStart(match[0])
792 h.Cursor.SetSelectionEnd(match[1])
793 h.Cursor.OrigSelection[0] = h.Cursor.CurSelection[0]
794 h.Cursor.OrigSelection[1] = h.Cursor.CurSelection[1]
795 h.Cursor.Loc = h.Cursor.CurSelection[1]
797 h.Cursor.ResetSelection()
803 // FindPrevious searches backwards for the last used search term
804 func (h *BufPane) FindPrevious() bool {
805 // If the cursor is at the end of a selection and we search we want
806 // to search from the beginning of the selection in the case that
807 // the selection is a search result in which case we wouldn't move at
808 // at all which would be bad
809 searchLoc := h.Cursor.Loc
810 if h.Cursor.HasSelection() {
811 searchLoc = h.Cursor.CurSelection[0]
813 match, found, err := h.Buf.FindNext(h.lastSearch, h.Buf.Start(), h.Buf.End(), searchLoc, false, true)
818 h.Cursor.SetSelectionStart(match[0])
819 h.Cursor.SetSelectionEnd(match[1])
820 h.Cursor.OrigSelection[0] = h.Cursor.CurSelection[0]
821 h.Cursor.OrigSelection[1] = h.Cursor.CurSelection[1]
822 h.Cursor.Loc = h.Cursor.CurSelection[1]
824 h.Cursor.ResetSelection()
830 // Undo undoes the last action
831 func (h *BufPane) Undo() bool {
833 InfoBar.Message("Undid action")
838 // Redo redoes the last action
839 func (h *BufPane) Redo() bool {
841 InfoBar.Message("Redid action")
846 // Copy the selection to the system clipboard
847 func (h *BufPane) Copy() bool {
848 if h.Cursor.HasSelection() {
849 h.Cursor.CopySelection("clipboard")
851 if clipboard.Unsupported {
852 InfoBar.Message("Copied selection (install xclip for external clipboard)")
854 InfoBar.Message("Copied selection")
861 // CutLine cuts the current line to the clipboard
862 func (h *BufPane) CutLine() bool {
863 h.Cursor.SelectLine()
864 if !h.Cursor.HasSelection() {
867 if h.freshClip == true {
868 if h.Cursor.HasSelection() {
869 if clip, err := clipboard.ReadAll("clipboard"); err != nil {
870 // messenger.Error(err)
872 clipboard.WriteAll(clip+string(h.Cursor.GetSelection()), "clipboard")
875 } else if time.Since(h.lastCutTime)/time.Second > 10*time.Second || h.freshClip == false {
879 h.lastCutTime = time.Now()
880 h.Cursor.DeleteSelection()
881 h.Cursor.ResetSelection()
882 InfoBar.Message("Cut line")
887 // Cut the selection to the system clipboard
888 func (h *BufPane) Cut() bool {
889 if h.Cursor.HasSelection() {
890 h.Cursor.CopySelection("clipboard")
891 h.Cursor.DeleteSelection()
892 h.Cursor.ResetSelection()
894 InfoBar.Message("Cut selection")
903 // DuplicateLine duplicates the current line or selection
904 func (h *BufPane) DuplicateLine() bool {
905 if h.Cursor.HasSelection() {
906 h.Buf.Insert(h.Cursor.CurSelection[1], string(h.Cursor.GetSelection()))
909 h.Buf.Insert(h.Cursor.Loc, "\n"+string(h.Buf.LineBytes(h.Cursor.Y)))
913 InfoBar.Message("Duplicated line")
918 // DeleteLine deletes the current line
919 func (h *BufPane) DeleteLine() bool {
920 h.Cursor.SelectLine()
921 if !h.Cursor.HasSelection() {
924 h.Cursor.DeleteSelection()
925 h.Cursor.ResetSelection()
926 InfoBar.Message("Deleted line")
931 // MoveLinesUp moves up the current line or selected lines if any
932 func (h *BufPane) MoveLinesUp() bool {
933 if h.Cursor.HasSelection() {
934 if h.Cursor.CurSelection[0].Y == 0 {
935 InfoBar.Message("Cannot move further up")
938 start := h.Cursor.CurSelection[0].Y
939 end := h.Cursor.CurSelection[1].Y
941 end, start = start, end
948 h.Cursor.CurSelection[1].Y -= 1
950 if h.Cursor.Loc.Y == 0 {
951 InfoBar.Message("Cannot move further up")
964 // MoveLinesDown moves down the current line or selected lines if any
965 func (h *BufPane) MoveLinesDown() bool {
966 if h.Cursor.HasSelection() {
967 if h.Cursor.CurSelection[1].Y >= h.Buf.LinesNum() {
968 InfoBar.Message("Cannot move further down")
971 start := h.Cursor.CurSelection[0].Y
972 end := h.Cursor.CurSelection[1].Y
974 end, start = start, end
982 if h.Cursor.Loc.Y >= h.Buf.LinesNum()-1 {
983 InfoBar.Message("Cannot move further down")
996 // Paste whatever is in the system clipboard into the buffer
997 // Delete and paste if the user has a selection
998 func (h *BufPane) Paste() bool {
999 clip, _ := clipboard.ReadAll("clipboard")
1005 // PastePrimary pastes from the primary clipboard (only use on linux)
1006 func (h *BufPane) PastePrimary() bool {
1007 clip, _ := clipboard.ReadAll("primary")
1013 func (h *BufPane) paste(clip string) {
1014 if h.Buf.Settings["smartpaste"].(bool) {
1015 if h.Cursor.X > 0 && len(util.GetLeadingWhitespace([]byte(strings.TrimLeft(clip, "\r\n")))) == 0 {
1016 leadingWS := util.GetLeadingWhitespace(h.Buf.LineBytes(h.Cursor.Y))
1017 clip = strings.Replace(clip, "\n", "\n"+string(leadingWS), -1)
1021 if h.Cursor.HasSelection() {
1022 h.Cursor.DeleteSelection()
1023 h.Cursor.ResetSelection()
1026 h.Buf.Insert(h.Cursor.Loc, clip)
1027 // h.Cursor.Loc = h.Cursor.Loc.Move(Count(clip), h.Buf)
1029 if clipboard.Unsupported {
1030 InfoBar.Message("Pasted clipboard (install xclip for external clipboard)")
1032 InfoBar.Message("Pasted clipboard")
1036 // JumpToMatchingBrace moves the cursor to the matching brace if it is
1037 // currently on a brace
1038 func (h *BufPane) JumpToMatchingBrace() bool {
1039 for _, bp := range buffer.BracePairs {
1040 r := h.Cursor.RuneUnder(h.Cursor.X)
1041 rl := h.Cursor.RuneUnder(h.Cursor.X - 1)
1042 if r == bp[0] || r == bp[1] || rl == bp[0] || rl == bp[1] {
1043 matchingBrace, left := h.Buf.FindMatchingBrace(bp, h.Cursor.Loc)
1045 h.Cursor.GotoLoc(matchingBrace)
1047 h.Cursor.GotoLoc(matchingBrace.Move(1, h.Buf))
1056 // SelectAll selects the entire buffer
1057 func (h *BufPane) SelectAll() bool {
1058 h.Cursor.SetSelectionStart(h.Buf.Start())
1059 h.Cursor.SetSelectionEnd(h.Buf.End())
1060 // Put the cursor at the beginning
1067 // OpenFile opens a new file in the buffer
1068 func (h *BufPane) OpenFile() bool {
1069 InfoBar.Prompt("> ", "open ", "Open", nil, func(resp string, canceled bool) {
1071 h.HandleCommand(resp)
1077 // Start moves the viewport to the start of the buffer
1078 func (h *BufPane) Start() bool {
1085 // End moves the viewport to the end of the buffer
1086 func (h *BufPane) End() bool {
1087 // TODO: softwrap problems?
1089 if v.Height > h.Buf.LinesNum() {
1093 v.StartLine = h.Buf.LinesNum() - v.Height
1099 // PageUp scrolls the view up a page
1100 func (h *BufPane) PageUp() bool {
1102 if v.StartLine > v.Height {
1103 h.ScrollUp(v.Height)
1111 // PageDown scrolls the view down a page
1112 func (h *BufPane) PageDown() bool {
1114 if h.Buf.LinesNum()-(v.StartLine+v.Height) > v.Height {
1115 h.ScrollDown(v.Height)
1116 } else if h.Buf.LinesNum() >= v.Height {
1117 v.StartLine = h.Buf.LinesNum() - v.Height
1122 // SelectPageUp selects up one page
1123 func (h *BufPane) SelectPageUp() bool {
1124 if !h.Cursor.HasSelection() {
1125 h.Cursor.OrigSelection[0] = h.Cursor.Loc
1127 h.Cursor.UpN(h.GetView().Height)
1128 h.Cursor.SelectTo(h.Cursor.Loc)
1133 // SelectPageDown selects down one page
1134 func (h *BufPane) SelectPageDown() bool {
1135 if !h.Cursor.HasSelection() {
1136 h.Cursor.OrigSelection[0] = h.Cursor.Loc
1138 h.Cursor.DownN(h.GetView().Height)
1139 h.Cursor.SelectTo(h.Cursor.Loc)
1144 // CursorPageUp places the cursor a page up
1145 func (h *BufPane) CursorPageUp() bool {
1146 h.Cursor.Deselect(true)
1148 if h.Cursor.HasSelection() {
1149 h.Cursor.Loc = h.Cursor.CurSelection[0]
1150 h.Cursor.ResetSelection()
1151 h.Cursor.StoreVisualX()
1153 h.Cursor.UpN(h.GetView().Height)
1158 // CursorPageDown places the cursor a page up
1159 func (h *BufPane) CursorPageDown() bool {
1160 h.Cursor.Deselect(false)
1162 if h.Cursor.HasSelection() {
1163 h.Cursor.Loc = h.Cursor.CurSelection[1]
1164 h.Cursor.ResetSelection()
1165 h.Cursor.StoreVisualX()
1167 h.Cursor.DownN(h.GetView().Height)
1172 // HalfPageUp scrolls the view up half a page
1173 func (h *BufPane) HalfPageUp() bool {
1175 if v.StartLine > v.Height/2 {
1176 h.ScrollUp(v.Height / 2)
1184 // HalfPageDown scrolls the view down half a page
1185 func (h *BufPane) HalfPageDown() bool {
1187 if h.Buf.LinesNum()-(v.StartLine+v.Height) > v.Height/2 {
1188 h.ScrollDown(v.Height / 2)
1190 if h.Buf.LinesNum() >= v.Height {
1191 v.StartLine = h.Buf.LinesNum() - v.Height
1198 // ToggleRuler turns line numbers off and on
1199 func (h *BufPane) ToggleRuler() bool {
1200 if !h.Buf.Settings["ruler"].(bool) {
1201 h.Buf.Settings["ruler"] = true
1202 InfoBar.Message("Enabled ruler")
1204 h.Buf.Settings["ruler"] = false
1205 InfoBar.Message("Disabled ruler")
1210 // ClearStatus clears the messenger bar
1211 func (h *BufPane) ClearStatus() bool {
1216 // ToggleHelp toggles the help screen
1217 func (h *BufPane) ToggleHelp() bool {
1218 if h.Buf.Type == buffer.BTHelp {
1226 // ToggleKeyMenu toggles the keymenu option and resizes all tabs
1227 func (h *BufPane) ToggleKeyMenu() bool {
1228 config.GlobalSettings["keymenu"] = !config.GetGlobalOption("keymenu").(bool)
1233 // ShellMode opens a terminal to run a shell command
1234 func (h *BufPane) ShellMode() bool {
1235 InfoBar.Prompt("$ ", "", "Shell", nil, func(resp string, canceled bool) {
1237 // The true here is for openTerm to make the command interactive
1238 shell.RunInteractiveShell(resp, true, false)
1245 // CommandMode lets the user enter a command
1246 func (h *BufPane) CommandMode() bool {
1247 InfoBar.Prompt("> ", "", "Command", nil, func(resp string, canceled bool) {
1249 h.HandleCommand(resp)
1255 // ToggleOverwriteMode lets the user toggle the text overwrite mode
1256 func (h *BufPane) ToggleOverwriteMode() bool {
1257 h.isOverwriteMode = !h.isOverwriteMode
1261 // Escape leaves current mode
1262 func (h *BufPane) Escape() bool {
1266 // Quit this will close the current tab or view that is open
1267 func (h *BufPane) Quit() bool {
1270 if len(MainTab().Panes) > 1 {
1272 } else if len(Tabs.List) > 1 {
1273 Tabs.RemoveTab(h.splitID)
1275 screen.Screen.Fini()
1280 if h.Buf.Modified() {
1281 // if config.GlobalSettings["autosave"].(float64) > 0 {
1282 // autosave on means we automatically save when quitting
1286 InfoBar.YNPrompt("Save changes to "+h.Buf.GetName()+" before closing? (y,n,esc)", func(yes, canceled bool) {
1287 if !canceled && !yes {
1289 } else if !canceled && yes {
1301 // QuitAll quits the whole editor; all splits and tabs
1302 func (h *BufPane) QuitAll() bool {
1303 anyModified := false
1304 for _, b := range buffer.OpenBuffers {
1312 for _, b := range buffer.OpenBuffers {
1315 screen.Screen.Fini()
1321 InfoBar.YNPrompt("Quit micro? (all open buffers will be closed without saving)", func(yes, canceled bool) {
1322 if !canceled && yes {
1333 // AddTab adds a new tab with an empty buffer
1334 func (h *BufPane) AddTab() bool {
1335 width, height := screen.Screen.Size()
1336 iOffset := config.GetInfoBarOffset()
1337 b := buffer.NewBufferFromString("", "", buffer.BTDefault)
1338 tp := NewTabFromBuffer(0, 0, width, height-iOffset, b)
1340 Tabs.SetActive(len(Tabs.List) - 1)
1345 // PreviousTab switches to the previous tab in the tab list
1346 func (h *BufPane) PreviousTab() bool {
1348 Tabs.SetActive(util.Clamp(a-1, 0, len(Tabs.List)-1))
1353 // NextTab switches to the next tab in the tab list
1354 func (h *BufPane) NextTab() bool {
1356 Tabs.SetActive(util.Clamp(a+1, 0, len(Tabs.List)-1))
1360 // VSplitAction opens an empty vertical split
1361 func (h *BufPane) VSplitAction() bool {
1362 h.VSplitBuf(buffer.NewBufferFromString("", "", buffer.BTDefault))
1367 // HSplitAction opens an empty horizontal split
1368 func (h *BufPane) HSplitAction() bool {
1369 h.HSplitBuf(buffer.NewBufferFromString("", "", buffer.BTDefault))
1374 // Unsplit closes all splits in the current tab except the active one
1375 func (h *BufPane) Unsplit() bool {
1376 n := MainTab().GetNode(h.splitID)
1379 MainTab().RemovePane(MainTab().GetPane(h.splitID))
1381 MainTab().SetActive(len(MainTab().Panes) - 1)
1385 // NextSplit changes the view to the next split
1386 func (h *BufPane) NextSplit() bool {
1387 a := MainTab().active
1388 if a < len(MainTab().Panes)-1 {
1394 MainTab().SetActive(a)
1399 // PreviousSplit changes the view to the previous split
1400 func (h *BufPane) PreviousSplit() bool {
1401 a := MainTab().active
1405 a = len(MainTab().Panes) - 1
1407 MainTab().SetActive(a)
1412 var curmacro []interface{}
1413 var recording_macro bool
1415 // ToggleMacro toggles recording of a macro
1416 func (h *BufPane) ToggleMacro() bool {
1417 recording_macro = !recording_macro
1418 if recording_macro {
1419 curmacro = []interface{}{}
1420 InfoBar.Message("Recording")
1422 InfoBar.Message("Stopped recording")
1428 // PlayMacro plays back the most recently recorded macro
1429 func (h *BufPane) PlayMacro() bool {
1430 if recording_macro {
1433 for _, action := range curmacro {
1434 switch t := action.(type) {
1437 case func(*BufPane) bool:
1445 // SpawnMultiCursor creates a new multiple cursor at the next occurrence of the current selection or current word
1446 func (h *BufPane) SpawnMultiCursor() bool {
1447 spawner := h.Buf.GetCursor(h.Buf.NumCursors() - 1)
1448 if !spawner.HasSelection() {
1449 spawner.SelectWord()
1455 sel := spawner.GetSelection()
1456 searchStart := spawner.CurSelection[1]
1458 search := string(sel)
1459 search = regexp.QuoteMeta(search)
1461 search = "\\b" + search + "\\b"
1463 match, found, err := h.Buf.FindNext(search, h.Buf.Start(), h.Buf.End(), searchStart, true, true)
1468 c := buffer.NewCursor(h.Buf, buffer.Loc{})
1469 c.SetSelectionStart(match[0])
1470 c.SetSelectionEnd(match[1])
1471 c.OrigSelection[0] = c.CurSelection[0]
1472 c.OrigSelection[1] = c.CurSelection[1]
1473 c.Loc = c.CurSelection[1]
1476 h.Buf.SetCurCursor(h.Buf.NumCursors() - 1)
1477 h.Buf.MergeCursors()
1479 InfoBar.Message("No matches found")
1486 // SpawnMultiCursorUp creates additional cursor, at the same X (if possible), one Y less.
1487 func (h *BufPane) SpawnMultiCursorUp() bool {
1488 if h.Cursor.Y == 0 {
1491 h.Cursor.GotoLoc(buffer.Loc{h.Cursor.X, h.Cursor.Y - 1})
1495 c := buffer.NewCursor(h.Buf, buffer.Loc{h.Cursor.X, h.Cursor.Y + 1})
1497 h.Buf.SetCurCursor(h.Buf.NumCursors() - 1)
1498 h.Buf.MergeCursors()
1504 // SpawnMultiCursorUp creates additional cursor, at the same X (if possible), one Y more.
1505 func (h *BufPane) SpawnMultiCursorDown() bool {
1506 if h.Cursor.Y+1 == h.Buf.LinesNum() {
1509 h.Cursor.GotoLoc(buffer.Loc{h.Cursor.X, h.Cursor.Y + 1})
1513 c := buffer.NewCursor(h.Buf, buffer.Loc{h.Cursor.X, h.Cursor.Y - 1})
1515 h.Buf.SetCurCursor(h.Buf.NumCursors() - 1)
1516 h.Buf.MergeCursors()
1521 // SpawnMultiCursorSelect adds a cursor at the beginning of each line of a selection
1522 func (h *BufPane) SpawnMultiCursorSelect() bool {
1523 // Avoid cases where multiple cursors already exist, that would create problems
1524 if h.Buf.NumCursors() > 1 {
1531 a, b := h.Cursor.CurSelection[0].Y, h.Cursor.CurSelection[1].Y
1533 startLine, endLine = b, a
1535 startLine, endLine = a, b
1538 if h.Cursor.HasSelection() {
1539 h.Cursor.ResetSelection()
1540 h.Cursor.GotoLoc(buffer.Loc{0, startLine})
1542 for i := startLine; i <= endLine; i++ {
1543 c := buffer.NewCursor(h.Buf, buffer.Loc{0, i})
1547 h.Buf.MergeCursors()
1551 InfoBar.Message("Added cursors from selection")
1555 // MouseMultiCursor is a mouse action which puts a new cursor at the mouse position
1556 func (h *BufPane) MouseMultiCursor(e *tcell.EventMouse) bool {
1558 mx, my := e.Position()
1559 mouseLoc := h.LocFromVisual(buffer.Loc{X: mx, Y: my})
1560 c := buffer.NewCursor(b, mouseLoc)
1567 // SkipMultiCursor moves the current multiple cursor to the next available position
1568 func (h *BufPane) SkipMultiCursor() bool {
1569 lastC := h.Buf.GetCursor(h.Buf.NumCursors() - 1)
1570 sel := lastC.GetSelection()
1571 searchStart := lastC.CurSelection[1]
1573 search := string(sel)
1574 search = regexp.QuoteMeta(search)
1576 search = "\\b" + search + "\\b"
1579 match, found, err := h.Buf.FindNext(search, h.Buf.Start(), h.Buf.End(), searchStart, true, true)
1584 lastC.SetSelectionStart(match[0])
1585 lastC.SetSelectionEnd(match[1])
1586 lastC.OrigSelection[0] = lastC.CurSelection[0]
1587 lastC.OrigSelection[1] = lastC.CurSelection[1]
1588 lastC.Loc = lastC.CurSelection[1]
1590 h.Buf.MergeCursors()
1591 h.Buf.SetCurCursor(h.Buf.NumCursors() - 1)
1593 InfoBar.Message("No matches found")
1599 // RemoveMultiCursor removes the latest multiple cursor
1600 func (h *BufPane) RemoveMultiCursor() bool {
1601 if h.Buf.NumCursors() > 1 {
1602 h.Buf.RemoveCursor(h.Buf.NumCursors() - 1)
1603 h.Buf.SetCurCursor(h.Buf.NumCursors() - 1)
1604 h.Buf.UpdateCursors()
1612 // RemoveAllMultiCursors removes all cursors except the base cursor
1613 func (h *BufPane) RemoveAllMultiCursors() bool {
1614 h.Buf.ClearCursors()
1620 // None is an action that does nothing
1621 func (h *BufPane) None() bool {