import (
"encoding/json"
- "errors"
"io/ioutil"
"os"
- "os/exec"
+ "strconv"
"strings"
"time"
"StartOfLine": (*View).StartOfLine,
"EndOfLine": (*View).EndOfLine,
"ToggleRuler": (*View).ToggleRuler,
+ "JumpLine": (*View).JumpLine,
}
keys := map[string]tcell.Key{
"CtrlU": "HalfPageUp",
"CtrlD": "HalfPageDown",
"CtrlR": "ToggleRuler",
+ "CtrlL": "JumpLine",
"Delete": "Delete",
}
}
// CursorUp moves the cursor up
func (v *View) CursorUp() bool {
- v.cursor.ResetSelection()
- v.cursor.Up()
+ if v.Cursor.HasSelection() {
+ v.Cursor.SetLoc(v.Cursor.curSelection[0])
+ v.Cursor.ResetSelection()
+ }
+ v.Cursor.Up()
return true
}
// CursorDown moves the cursor down
func (v *View) CursorDown() bool {
- v.cursor.ResetSelection()
- v.cursor.Down()
+ if v.Cursor.HasSelection() {
+ v.Cursor.SetLoc(v.Cursor.curSelection[1])
+ v.Cursor.ResetSelection()
+ }
+ v.Cursor.Down()
return true
}
// CursorLeft moves the cursor left
func (v *View) CursorLeft() bool {
- if v.cursor.HasSelection() {
- v.cursor.SetLoc(v.cursor.curSelection[0])
- v.cursor.ResetSelection()
+ if v.Cursor.HasSelection() {
+ v.Cursor.SetLoc(v.Cursor.curSelection[0])
+ v.Cursor.ResetSelection()
} else {
- v.cursor.Left()
+ v.Cursor.Left()
}
return true
}
// CursorRight moves the cursor right
func (v *View) CursorRight() bool {
- if v.cursor.HasSelection() {
- v.cursor.SetLoc(v.cursor.curSelection[1] - 1)
- v.cursor.ResetSelection()
+ if v.Cursor.HasSelection() {
+ v.Cursor.SetLoc(v.Cursor.curSelection[1] - 1)
+ v.Cursor.ResetSelection()
} else {
- v.cursor.Right()
+ v.Cursor.Right()
}
return true
}
// WordRight moves the cursor one word to the right
func (v *View) WordRight() bool {
- v.cursor.WordRight()
+ v.Cursor.WordRight()
return true
}
// WordLeft moves the cursor one word to the left
func (v *View) WordLeft() bool {
- v.cursor.WordLeft()
+ v.Cursor.WordLeft()
return true
}
// SelectUp selects up one line
func (v *View) SelectUp() bool {
- loc := v.cursor.Loc()
- if !v.cursor.HasSelection() {
- v.cursor.origSelection[0] = loc
+ loc := v.Cursor.Loc()
+ if !v.Cursor.HasSelection() {
+ v.Cursor.origSelection[0] = loc
}
- v.cursor.Up()
- v.cursor.SelectTo(v.cursor.Loc())
+ v.Cursor.Up()
+ v.Cursor.SelectTo(v.Cursor.Loc())
return true
}
-// SelectUp selects down one line
+// SelectDown selects down one line
func (v *View) SelectDown() bool {
- loc := v.cursor.Loc()
- if !v.cursor.HasSelection() {
- v.cursor.origSelection[0] = loc
+ loc := v.Cursor.Loc()
+ if !v.Cursor.HasSelection() {
+ v.Cursor.origSelection[0] = loc
}
- v.cursor.Down()
- v.cursor.SelectTo(v.cursor.Loc())
+ v.Cursor.Down()
+ v.Cursor.SelectTo(v.Cursor.Loc())
return true
}
// SelectLeft selects the character to the left of the cursor
func (v *View) SelectLeft() bool {
- loc := v.cursor.Loc()
- if !v.cursor.HasSelection() {
- v.cursor.origSelection[0] = loc
+ loc := v.Cursor.Loc()
+ count := v.Buf.Len() - 1
+ if loc > count {
+ loc = count
}
- v.cursor.SelectTo(loc - 1)
- v.cursor.Left()
+ if !v.Cursor.HasSelection() {
+ v.Cursor.origSelection[0] = loc
+ }
+ v.Cursor.Left()
+ v.Cursor.SelectTo(v.Cursor.Loc())
return true
}
// SelectRight selects the character to the right of the cursor
func (v *View) SelectRight() bool {
- loc := v.cursor.Loc()
- if !v.cursor.HasSelection() {
- v.cursor.origSelection[0] = loc
+ loc := v.Cursor.Loc()
+ count := v.Buf.Len() - 1
+ if loc > count {
+ loc = count
+ }
+ if !v.Cursor.HasSelection() {
+ v.Cursor.origSelection[0] = loc
}
- v.cursor.SelectTo(loc + 1)
- v.cursor.Right()
+ v.Cursor.Right()
+ v.Cursor.SelectTo(v.Cursor.Loc())
return true
}
// SelectWordRight selects the word to the right of the cursor
func (v *View) SelectWordRight() bool {
- loc := v.cursor.Loc()
- if !v.cursor.HasSelection() {
- v.cursor.origSelection[0] = loc
+ loc := v.Cursor.Loc()
+ if !v.Cursor.HasSelection() {
+ v.Cursor.origSelection[0] = loc
}
- v.cursor.WordRight()
- v.cursor.SelectTo(v.cursor.Loc())
+ v.Cursor.WordRight()
+ v.Cursor.SelectTo(v.Cursor.Loc())
return true
}
// SelectWordLeft selects the word to the left of the cursor
func (v *View) SelectWordLeft() bool {
- loc := v.cursor.Loc()
- if !v.cursor.HasSelection() {
- v.cursor.origSelection[0] = loc
+ loc := v.Cursor.Loc()
+ if !v.Cursor.HasSelection() {
+ v.Cursor.origSelection[0] = loc
}
- v.cursor.WordLeft()
- v.cursor.SelectTo(v.cursor.Loc())
+ v.Cursor.WordLeft()
+ v.Cursor.SelectTo(v.Cursor.Loc())
return true
}
// StartOfLine moves the cursor to the start of the line
func (v *View) StartOfLine() bool {
- v.cursor.Start()
+ v.Cursor.Start()
return true
}
// EndOfLine moves the cursor to the end of the line
func (v *View) EndOfLine() bool {
- v.cursor.End()
+ v.Cursor.End()
return true
}
// SelectToStartOfLine selects to the start of the current line
func (v *View) SelectToStartOfLine() bool {
- loc := v.cursor.Loc()
- if !v.cursor.HasSelection() {
- v.cursor.origSelection[0] = loc
+ loc := v.Cursor.Loc()
+ if !v.Cursor.HasSelection() {
+ v.Cursor.origSelection[0] = loc
}
- v.cursor.Start()
- v.cursor.SelectTo(v.cursor.Loc())
+ v.Cursor.Start()
+ v.Cursor.SelectTo(v.Cursor.Loc())
return true
}
// SelectToEndOfLine selects to the end of the current line
func (v *View) SelectToEndOfLine() bool {
- loc := v.cursor.Loc()
- if !v.cursor.HasSelection() {
- v.cursor.origSelection[0] = loc
+ loc := v.Cursor.Loc()
+ if !v.Cursor.HasSelection() {
+ v.Cursor.origSelection[0] = loc
}
- v.cursor.End()
- v.cursor.SelectTo(v.cursor.Loc())
+ v.Cursor.End()
+ v.Cursor.SelectTo(v.Cursor.Loc())
return true
}
// CursorStart moves the cursor to the start of the buffer
func (v *View) CursorStart() bool {
- v.cursor.x = 0
- v.cursor.y = 0
+ v.Cursor.x = 0
+ v.Cursor.y = 0
return true
}
// CursorEnd moves the cursor to the end of the buffer
func (v *View) CursorEnd() bool {
- v.cursor.SetLoc(len(v.buf.text))
+ v.Cursor.SetLoc(v.Buf.Len())
return true
}
// SelectToStart selects the text from the cursor to the start of the buffer
func (v *View) SelectToStart() bool {
- loc := v.cursor.Loc()
- if !v.cursor.HasSelection() {
- v.cursor.origSelection[0] = loc
+ loc := v.Cursor.Loc()
+ if !v.Cursor.HasSelection() {
+ v.Cursor.origSelection[0] = loc
}
v.CursorStart()
- v.cursor.SelectTo(0)
+ v.Cursor.SelectTo(0)
return true
}
// SelectToEnd selects the text from the cursor to the end of the buffer
func (v *View) SelectToEnd() bool {
- loc := v.cursor.Loc()
- if !v.cursor.HasSelection() {
- v.cursor.origSelection[0] = loc
+ loc := v.Cursor.Loc()
+ if !v.Cursor.HasSelection() {
+ v.Cursor.origSelection[0] = loc
}
v.CursorEnd()
- v.cursor.SelectTo(len(v.buf.text))
+ v.Cursor.SelectTo(v.Buf.Len())
return true
}
// InsertSpace inserts a space
func (v *View) InsertSpace() bool {
// Insert a space
- if v.cursor.HasSelection() {
- v.cursor.DeleteSelection()
- v.cursor.ResetSelection()
+ if v.Cursor.HasSelection() {
+ v.Cursor.DeleteSelection()
+ v.Cursor.ResetSelection()
}
- v.eh.Insert(v.cursor.Loc(), " ")
- v.cursor.Right()
+ v.eh.Insert(v.Cursor.Loc(), " ")
+ v.Cursor.Right()
return true
}
// InsertEnter inserts a newline plus possible some whitespace if autoindent is on
func (v *View) InsertEnter() bool {
// Insert a newline
- if v.cursor.HasSelection() {
- v.cursor.DeleteSelection()
- v.cursor.ResetSelection()
+ if v.Cursor.HasSelection() {
+ v.Cursor.DeleteSelection()
+ v.Cursor.ResetSelection()
}
- v.eh.Insert(v.cursor.Loc(), "\n")
- ws := GetLeadingWhitespace(v.buf.lines[v.cursor.y])
- v.cursor.Right()
+ v.eh.Insert(v.Cursor.Loc(), "\n")
+ ws := GetLeadingWhitespace(v.Buf.Lines[v.Cursor.y])
+ v.Cursor.Right()
- if settings.AutoIndent {
- v.eh.Insert(v.cursor.Loc(), ws)
+ if settings["autoindent"].(bool) {
+ v.eh.Insert(v.Cursor.Loc(), ws)
for i := 0; i < len(ws); i++ {
- v.cursor.Right()
+ v.Cursor.Right()
}
}
- v.cursor.lastVisualX = v.cursor.GetVisualX()
+ v.Cursor.lastVisualX = v.Cursor.GetVisualX()
return true
}
// Backspace deletes the previous character
func (v *View) Backspace() bool {
// Delete a character
- if v.cursor.HasSelection() {
- v.cursor.DeleteSelection()
- v.cursor.ResetSelection()
- } else if v.cursor.Loc() > 0 {
+ if v.Cursor.HasSelection() {
+ v.Cursor.DeleteSelection()
+ v.Cursor.ResetSelection()
+ } else if v.Cursor.Loc() > 0 {
// We have to do something a bit hacky here because we want to
// delete the line by first moving left and then deleting backwards
// but the undo redo would place the cursor in the wrong place
// If the user is using spaces instead of tabs and they are deleting
// whitespace at the start of the line, we should delete as if its a
// tab (tabSize number of spaces)
- lineStart := v.buf.lines[v.cursor.y][:v.cursor.x]
- if settings.TabsToSpaces && IsSpaces(lineStart) && len(lineStart) != 0 && len(lineStart)%settings.TabSize == 0 {
- loc := v.cursor.Loc()
- v.cursor.SetLoc(loc - settings.TabSize)
- cx, cy := v.cursor.x, v.cursor.y
- v.cursor.SetLoc(loc)
- v.eh.Remove(loc-settings.TabSize, loc)
- v.cursor.x, v.cursor.y = cx, cy
+ lineStart := v.Buf.Lines[v.Cursor.y][:v.Cursor.x]
+ tabSize := int(settings["tabsize"].(float64))
+ if settings["tabsToSpaces"].(bool) && IsSpaces(lineStart) && len(lineStart) != 0 && len(lineStart)%tabSize == 0 {
+ loc := v.Cursor.Loc()
+ v.Cursor.SetLoc(loc - tabSize)
+ cx, cy := v.Cursor.x, v.Cursor.y
+ v.Cursor.SetLoc(loc)
+ v.eh.Remove(loc-tabSize, loc)
+ v.Cursor.x, v.Cursor.y = cx, cy
} else {
- v.cursor.Left()
- cx, cy := v.cursor.x, v.cursor.y
- v.cursor.Right()
- loc := v.cursor.Loc()
+ v.Cursor.Left()
+ cx, cy := v.Cursor.x, v.Cursor.y
+ v.Cursor.Right()
+ loc := v.Cursor.Loc()
v.eh.Remove(loc-1, loc)
- v.cursor.x, v.cursor.y = cx, cy
+ v.Cursor.x, v.Cursor.y = cx, cy
}
}
- v.cursor.lastVisualX = v.cursor.GetVisualX()
+ v.Cursor.lastVisualX = v.Cursor.GetVisualX()
return true
}
// Delete deletes the next character
func (v *View) Delete() bool {
- if v.cursor.HasSelection() {
- v.cursor.DeleteSelection()
- v.cursor.ResetSelection()
+ if v.Cursor.HasSelection() {
+ v.Cursor.DeleteSelection()
+ v.Cursor.ResetSelection()
} else {
- loc := v.cursor.Loc()
- if loc < len(v.buf.text) {
+ loc := v.Cursor.Loc()
+ if loc < v.Buf.Len() {
v.eh.Remove(loc, loc+1)
}
}
// InsertTab inserts a tab or spaces
func (v *View) InsertTab() bool {
// Insert a tab
- if v.cursor.HasSelection() {
- v.cursor.DeleteSelection()
- v.cursor.ResetSelection()
- }
- if settings.TabsToSpaces {
- v.eh.Insert(v.cursor.Loc(), Spaces(settings.TabSize))
- for i := 0; i < settings.TabSize; i++ {
- v.cursor.Right()
+ if v.Cursor.HasSelection() {
+ v.Cursor.DeleteSelection()
+ v.Cursor.ResetSelection()
+ }
+ if settings["tabsToSpaces"].(bool) {
+ tabSize := int(settings["tabsize"].(float64))
+ v.eh.Insert(v.Cursor.Loc(), Spaces(tabSize))
+ for i := 0; i < tabSize; i++ {
+ v.Cursor.Right()
}
} else {
- v.eh.Insert(v.cursor.Loc(), "\t")
- v.cursor.Right()
+ v.eh.Insert(v.Cursor.Loc(), "\t")
+ v.Cursor.Right()
}
return true
}
// Save the buffer to disk
func (v *View) Save() bool {
// If this is an empty buffer, ask for a filename
- if v.buf.path == "" {
+ if v.Buf.Path == "" {
filename, canceled := messenger.Prompt("Filename: ")
if !canceled {
- v.buf.path = filename
- v.buf.name = filename
+ v.Buf.Path = filename
+ v.Buf.Name = filename
} else {
return true
}
}
- err := v.buf.Save()
+ err := v.Buf.Save()
if err != nil {
messenger.Error(err.Error())
} else {
- messenger.Message("Saved " + v.buf.path)
- switch v.buf.filetype {
- case "Go":
- v.GoSave()
- }
+ messenger.Message("Saved " + v.Buf.Path)
}
return true
}
-// GoSave saves the current file (must be a go file) and runs goimports or gofmt
-// depending on the user's configuration
-func (v *View) GoSave() {
- if settings.GoImports == true {
- messenger.Message("Running goimports...")
- err := goimports(v.buf.path)
- if err != nil {
- messenger.Error(err)
- } else {
- messenger.Message("Saved " + v.buf.path)
- }
- v.reOpen()
- } else if settings.GoFmt == true {
- messenger.Message("Running gofmt...")
- err := gofmt(v.buf.path)
- if err != nil {
- messenger.Error(err)
- } else {
- messenger.Message("Saved " + v.buf.path)
- }
- v.reOpen()
- return
- }
-
- return
-}
-
// Find opens a prompt and searches forward for the input
func (v *View) Find() bool {
- if v.cursor.HasSelection() {
- searchStart = v.cursor.curSelection[1]
+ if v.Cursor.HasSelection() {
+ searchStart = v.Cursor.curSelection[1]
} else {
- searchStart = ToCharPos(v.cursor.x, v.cursor.y, v.buf)
+ searchStart = ToCharPos(v.Cursor.x, v.Cursor.y, v.Buf)
}
BeginSearch()
return true
// FindNext searches forwards for the last used search term
func (v *View) FindNext() bool {
- if v.cursor.HasSelection() {
- searchStart = v.cursor.curSelection[1]
+ if v.Cursor.HasSelection() {
+ searchStart = v.Cursor.curSelection[1]
} else {
- searchStart = ToCharPos(v.cursor.x, v.cursor.y, v.buf)
+ searchStart = ToCharPos(v.Cursor.x, v.Cursor.y, v.Buf)
}
- messenger.Message("Find: " + lastSearch)
+ messenger.Message("Finding: " + lastSearch)
Search(lastSearch, v, true)
return true
}
// FindPrevious searches backwards for the last used search term
func (v *View) FindPrevious() bool {
- if v.cursor.HasSelection() {
- searchStart = v.cursor.curSelection[0]
+ if v.Cursor.HasSelection() {
+ searchStart = v.Cursor.curSelection[0]
} else {
- searchStart = ToCharPos(v.cursor.x, v.cursor.y, v.buf)
+ searchStart = ToCharPos(v.Cursor.x, v.Cursor.y, v.Buf)
}
- messenger.Message("Find: " + lastSearch)
+ messenger.Message("Finding: " + lastSearch)
Search(lastSearch, v, false)
return true
}
// Copy the selection to the system clipboard
func (v *View) Copy() bool {
- if v.cursor.HasSelection() {
- clipboard.WriteAll(v.cursor.GetSelection())
+ if v.Cursor.HasSelection() {
+ clipboard.WriteAll(v.Cursor.GetSelection())
v.freshClip = true
}
return true
// CutLine cuts the current line to the clipboard
func (v *View) CutLine() bool {
- v.cursor.SelectLine()
+ v.Cursor.SelectLine()
if v.freshClip == true {
- if v.cursor.HasSelection() {
+ if v.Cursor.HasSelection() {
if clip, err := clipboard.ReadAll(); err != nil {
messenger.Error(err)
} else {
- clipboard.WriteAll(clip + v.cursor.GetSelection())
+ clipboard.WriteAll(clip + v.Cursor.GetSelection())
}
}
} else if time.Since(v.lastCutTime)/time.Second > 10*time.Second || v.freshClip == false {
}
v.freshClip = true
v.lastCutTime = time.Now()
- v.cursor.DeleteSelection()
- v.cursor.ResetSelection()
+ v.Cursor.DeleteSelection()
+ v.Cursor.ResetSelection()
return true
}
// Cut the selection to the system clipboard
func (v *View) Cut() bool {
- if v.cursor.HasSelection() {
- clipboard.WriteAll(v.cursor.GetSelection())
- v.cursor.DeleteSelection()
- v.cursor.ResetSelection()
+ if v.Cursor.HasSelection() {
+ clipboard.WriteAll(v.Cursor.GetSelection())
+ v.Cursor.DeleteSelection()
+ v.Cursor.ResetSelection()
v.freshClip = true
}
return true
// Paste whatever is in the system clipboard into the buffer
// Delete and paste if the user has a selection
func (v *View) Paste() bool {
- if v.cursor.HasSelection() {
- v.cursor.DeleteSelection()
- v.cursor.ResetSelection()
+ if v.Cursor.HasSelection() {
+ v.Cursor.DeleteSelection()
+ v.Cursor.ResetSelection()
}
clip, _ := clipboard.ReadAll()
- v.eh.Insert(v.cursor.Loc(), clip)
- v.cursor.SetLoc(v.cursor.Loc() + Count(clip))
+ v.eh.Insert(v.Cursor.Loc(), clip)
+ v.Cursor.SetLoc(v.Cursor.Loc() + Count(clip))
v.freshClip = false
return true
}
// SelectAll selects the entire buffer
func (v *View) SelectAll() bool {
- v.cursor.curSelection[1] = 0
- v.cursor.curSelection[0] = v.buf.Len()
+ v.Cursor.curSelection[1] = 0
+ v.Cursor.curSelection[0] = v.Buf.Len()
// Put the cursor at the beginning
- v.cursor.x = 0
- v.cursor.y = 0
+ v.Cursor.x = 0
+ v.Cursor.y = 0
return true
}
// Start moves the viewport to the start of the buffer
func (v *View) Start() bool {
- v.topline = 0
+ v.Topline = 0
return false
}
// End moves the viewport to the end of the buffer
func (v *View) End() bool {
- if v.height > len(v.buf.lines) {
- v.topline = 0
+ if v.height > v.Buf.NumLines {
+ v.Topline = 0
} else {
- v.topline = len(v.buf.lines) - v.height
+ v.Topline = v.Buf.NumLines - v.height
}
return false
}
// PageUp scrolls the view up a page
func (v *View) PageUp() bool {
- if v.topline > v.height {
+ if v.Topline > v.height {
v.ScrollUp(v.height)
} else {
- v.topline = 0
+ v.Topline = 0
}
return false
}
// PageDown scrolls the view down a page
func (v *View) PageDown() bool {
- if len(v.buf.lines)-(v.topline+v.height) > v.height {
+ if v.Buf.NumLines-(v.Topline+v.height) > v.height {
v.ScrollDown(v.height)
- } else if len(v.buf.lines) >= v.height {
- v.topline = len(v.buf.lines) - v.height
+ } else if v.Buf.NumLines >= v.height {
+ v.Topline = v.Buf.NumLines - v.height
}
return false
}
// HalfPageUp scrolls the view up half a page
func (v *View) HalfPageUp() bool {
- if v.topline > v.height/2 {
+ if v.Topline > v.height/2 {
v.ScrollUp(v.height / 2)
} else {
- v.topline = 0
+ v.Topline = 0
}
return false
}
// HalfPageDown scrolls the view down half a page
func (v *View) HalfPageDown() bool {
- if len(v.buf.lines)-(v.topline+v.height) > v.height/2 {
+ if v.Buf.NumLines-(v.Topline+v.height) > v.height/2 {
v.ScrollDown(v.height / 2)
} else {
- if len(v.buf.lines) >= v.height {
- v.topline = len(v.buf.lines) - v.height
+ if v.Buf.NumLines >= v.height {
+ v.Topline = v.Buf.NumLines - v.height
}
}
return false
// ToggleRuler turns line numbers off and on
func (v *View) ToggleRuler() bool {
- if settings.Ruler == false {
- settings.Ruler = true
+ if settings["ruler"] == false {
+ settings["ruler"] = true
} else {
- settings.Ruler = false
+ settings["ruler"] = false
}
return false
}
-// None is no action
-func None() bool {
- return false
-}
-
-// gofmt runs gofmt on a file
-func gofmt(file string) error {
- cmd := exec.Command("gofmt", "-w", file)
- cmd.Start()
- err := cmd.Wait()
+// JumpLine jumps to a line and moves the view accordingly.
+func (v *View) JumpLine() bool {
+ // Prompt for line number
+ linestring, canceled := messenger.Prompt("Jump to line # ")
+ if canceled {
+ return false
+ }
+ lineint, err := strconv.Atoi(linestring)
+ lineint = lineint - 1 // fix offset
if err != nil {
- return errors.New("Check syntax ") //TODO: highlight or display locations
+ messenger.Error(err) // return errors
+ return false
}
- return nil
+ // Move cursor and view if possible.
+ if lineint < v.Buf.NumLines {
+ v.Cursor.x = 0
+ v.Cursor.y = lineint
+ return true
+ }
+ messenger.Error("Only ", v.Buf.NumLines, " lines to jump")
+ return false
}
-// goimports runs goimports on a file
-func goimports(file string) error {
- cmd := exec.Command("goimports", "-w", file)
- cmd.Start()
- err := cmd.Wait()
- if err != nil {
- return errors.New("Check syntax ") //TODO: highlight or display locations
- }
- return nil
+// None is no action
+func None() bool {
+ return false
}