From 331597b9f8a7942cbcb233a328301e4d5bf94fb0 Mon Sep 17 00:00:00 2001
From: Tulir Asokan <tulir@maunium.net>
Date: Fri, 11 Jan 2019 23:28:47 +0200
Subject: Switch to Go modules and make other changes

---
 vendor/maunium.net/go/tview/inputfield.go | 445 ------------------------------
 1 file changed, 445 deletions(-)
 delete mode 100644 vendor/maunium.net/go/tview/inputfield.go

(limited to 'vendor/maunium.net/go/tview/inputfield.go')

diff --git a/vendor/maunium.net/go/tview/inputfield.go b/vendor/maunium.net/go/tview/inputfield.go
deleted file mode 100644
index ccc66e3..0000000
--- a/vendor/maunium.net/go/tview/inputfield.go
+++ /dev/null
@@ -1,445 +0,0 @@
-package tview
-
-import (
-	"math"
-	"regexp"
-	"strings"
-	"unicode/utf8"
-
-	"maunium.net/go/tcell"
-	runewidth "github.com/mattn/go-runewidth"
-)
-
-// InputField is a one-line box (three lines if there is a title) where the
-// user can enter text. Use SetAcceptanceFunc() to accept or reject input,
-// SetChangedFunc() to listen for changes, and SetMaskCharacter() to hide input
-// from onlookers (e.g. for password input).
-//
-// The following keys can be used for navigation and editing:
-//
-//   - Left arrow: Move left by one character.
-//   - Right arrow: Move right by one character.
-//   - Home, Ctrl-A, Alt-a: Move to the beginning of the line.
-//   - End, Ctrl-E, Alt-e: Move to the end of the line.
-//   - Alt-left, Alt-b: Move left by one word.
-//   - Alt-right, Alt-f: Move right by one word.
-//   - Backspace: Delete the character before the cursor.
-//   - Delete: Delete the character after the cursor.
-//   - Ctrl-K: Delete from the cursor to the end of the line.
-//   - Ctrl-W: Delete the last word before the cursor.
-//   - Ctrl-U: Delete the entire line.
-//
-// See https://github.com/rivo/tview/wiki/InputField for an example.
-type InputField struct {
-	*Box
-
-	// The text that was entered.
-	text string
-
-	// The text to be displayed before the input area.
-	label string
-
-	// The text to be displayed in the input area when "text" is empty.
-	placeholder string
-
-	// The label color.
-	labelColor tcell.Color
-
-	// The background color of the input area.
-	fieldBackgroundColor tcell.Color
-
-	// The text color of the input area.
-	fieldTextColor tcell.Color
-
-	// The text color of the placeholder.
-	placeholderTextColor tcell.Color
-
-	// The screen width of the label area. A value of 0 means use the width of
-	// the label text.
-	labelWidth int
-
-	// The screen width of the input area. A value of 0 means extend as much as
-	// possible.
-	fieldWidth int
-
-	// A character to mask entered text (useful for password fields). A value of 0
-	// disables masking.
-	maskCharacter rune
-
-	// The cursor position as a byte index into the text string.
-	cursorPos int
-
-	// The number of bytes of the text string skipped ahead while drawing.
-	offset int
-
-	// An optional function which may reject the last character that was entered.
-	accept func(text string, ch rune) bool
-
-	// An optional function which is called when the input has changed.
-	changed func(text string)
-
-	// An optional function which is called when the user indicated that they
-	// are done entering text. The key which was pressed is provided (tab,
-	// shift-tab, enter, or escape).
-	done func(tcell.Key)
-
-	// A callback function set by the Form class and called when the user leaves
-	// this form item.
-	finished func(tcell.Key)
-}
-
-// NewInputField returns a new input field.
-func NewInputField() *InputField {
-	return &InputField{
-		Box:                  NewBox(),
-		labelColor:           Styles.SecondaryTextColor,
-		fieldBackgroundColor: Styles.ContrastBackgroundColor,
-		fieldTextColor:       Styles.PrimaryTextColor,
-		placeholderTextColor: Styles.ContrastSecondaryTextColor,
-	}
-}
-
-// SetText sets the current text of the input field.
-func (i *InputField) SetText(text string) *InputField {
-	i.text = text
-	i.cursorPos = len(text)
-	if i.changed != nil {
-		i.changed(text)
-	}
-	return i
-}
-
-// GetText returns the current text of the input field.
-func (i *InputField) GetText() string {
-	return i.text
-}
-
-// SetLabel sets the text to be displayed before the input area.
-func (i *InputField) SetLabel(label string) *InputField {
-	i.label = label
-	return i
-}
-
-// GetLabel returns the text to be displayed before the input area.
-func (i *InputField) GetLabel() string {
-	return i.label
-}
-
-// SetLabelWidth sets the screen width of the label. A value of 0 will cause the
-// primitive to use the width of the label string.
-func (i *InputField) SetLabelWidth(width int) *InputField {
-	i.labelWidth = width
-	return i
-}
-
-// SetPlaceholder sets the text to be displayed when the input text is empty.
-func (i *InputField) SetPlaceholder(text string) *InputField {
-	i.placeholder = text
-	return i
-}
-
-// SetLabelColor sets the color of the label.
-func (i *InputField) SetLabelColor(color tcell.Color) *InputField {
-	i.labelColor = color
-	return i
-}
-
-// SetFieldBackgroundColor sets the background color of the input area.
-func (i *InputField) SetFieldBackgroundColor(color tcell.Color) *InputField {
-	i.fieldBackgroundColor = color
-	return i
-}
-
-// SetFieldTextColor sets the text color of the input area.
-func (i *InputField) SetFieldTextColor(color tcell.Color) *InputField {
-	i.fieldTextColor = color
-	return i
-}
-
-// SetPlaceholderTextColor sets the text color of placeholder text.
-func (i *InputField) SetPlaceholderTextColor(color tcell.Color) *InputField {
-	i.placeholderTextColor = color
-	return i
-}
-
-// SetFormAttributes sets attributes shared by all form items.
-func (i *InputField) SetFormAttributes(labelWidth int, labelColor, bgColor, fieldTextColor, fieldBgColor tcell.Color) FormItem {
-	i.labelWidth = labelWidth
-	i.labelColor = labelColor
-	i.backgroundColor = bgColor
-	i.fieldTextColor = fieldTextColor
-	i.fieldBackgroundColor = fieldBgColor
-	return i
-}
-
-// SetFieldWidth sets the screen width of the input area. A value of 0 means
-// extend as much as possible.
-func (i *InputField) SetFieldWidth(width int) *InputField {
-	i.fieldWidth = width
-	return i
-}
-
-// GetFieldWidth returns this primitive's field width.
-func (i *InputField) GetFieldWidth() int {
-	return i.fieldWidth
-}
-
-// SetMaskCharacter sets a character that masks user input on a screen. A value
-// of 0 disables masking.
-func (i *InputField) SetMaskCharacter(mask rune) *InputField {
-	i.maskCharacter = mask
-	return i
-}
-
-// SetAcceptanceFunc sets a handler which may reject the last character that was
-// entered (by returning false).
-//
-// This package defines a number of variables prefixed with InputField which may
-// be used for common input (e.g. numbers, maximum text length).
-func (i *InputField) SetAcceptanceFunc(handler func(textToCheck string, lastChar rune) bool) *InputField {
-	i.accept = handler
-	return i
-}
-
-// SetChangedFunc sets a handler which is called whenever the text of the input
-// field has changed. It receives the current text (after the change).
-func (i *InputField) SetChangedFunc(handler func(text string)) *InputField {
-	i.changed = handler
-	return i
-}
-
-// SetDoneFunc sets a handler which is called when the user is done entering
-// text. The callback function is provided with the key that was pressed, which
-// is one of the following:
-//
-//   - KeyEnter: Done entering text.
-//   - KeyEscape: Abort text input.
-//   - KeyTab: Move to the next field.
-//   - KeyBacktab: Move to the previous field.
-func (i *InputField) SetDoneFunc(handler func(key tcell.Key)) *InputField {
-	i.done = handler
-	return i
-}
-
-// SetFinishedFunc sets a callback invoked when the user leaves this form item.
-func (i *InputField) SetFinishedFunc(handler func(key tcell.Key)) FormItem {
-	i.finished = handler
-	return i
-}
-
-// Draw draws this primitive onto the screen.
-func (i *InputField) Draw(screen tcell.Screen) {
-	i.Box.Draw(screen)
-
-	// Prepare
-	x, y, width, height := i.GetInnerRect()
-	rightLimit := x + width
-	if height < 1 || rightLimit <= x {
-		return
-	}
-
-	// Draw label.
-	if i.labelWidth > 0 {
-		labelWidth := i.labelWidth
-		if labelWidth > rightLimit-x {
-			labelWidth = rightLimit - x
-		}
-		Print(screen, i.label, x, y, labelWidth, AlignLeft, i.labelColor)
-		x += labelWidth
-	} else {
-		_, drawnWidth := Print(screen, i.label, x, y, rightLimit-x, AlignLeft, i.labelColor)
-		x += drawnWidth
-	}
-
-	// Draw input area.
-	fieldWidth := i.fieldWidth
-	if fieldWidth == 0 {
-		fieldWidth = math.MaxInt32
-	}
-	if rightLimit-x < fieldWidth {
-		fieldWidth = rightLimit - x
-	}
-	fieldStyle := tcell.StyleDefault.Background(i.fieldBackgroundColor)
-	for index := 0; index < fieldWidth; index++ {
-		screen.SetContent(x+index, y, ' ', nil, fieldStyle)
-	}
-
-	// Text.
-	var cursorScreenPos int
-	text := i.text
-	if text == "" && i.placeholder != "" {
-		// Draw placeholder text.
-		Print(screen, Escape(i.placeholder), x, y, fieldWidth, AlignLeft, i.placeholderTextColor)
-		i.offset = 0
-	} else {
-		// Draw entered text.
-		if i.maskCharacter > 0 {
-			text = strings.Repeat(string(i.maskCharacter), utf8.RuneCountInString(i.text))
-		}
-		stringWidth := runewidth.StringWidth(text)
-		if fieldWidth >= stringWidth {
-			// We have enough space for the full text.
-			Print(screen, Escape(text), x, y, fieldWidth, AlignLeft, i.fieldTextColor)
-			i.offset = 0
-			iterateString(text, func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool {
-				if textPos >= i.cursorPos {
-					return true
-				}
-				cursorScreenPos += screenWidth
-				return false
-			})
-		} else {
-			// The text doesn't fit. Where is the cursor?
-			if i.cursorPos < 0 {
-				i.cursorPos = 0
-			} else if i.cursorPos > len(text) {
-				i.cursorPos = len(text)
-			}
-			// Shift the text so the cursor is inside the field.
-			var shiftLeft int
-			if i.offset > i.cursorPos {
-				i.offset = i.cursorPos
-			} else if subWidth := runewidth.StringWidth(text[i.offset:i.cursorPos]); subWidth > fieldWidth-1 {
-				shiftLeft = subWidth - fieldWidth + 1
-			}
-			currentOffset := i.offset
-			iterateString(text, func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool {
-				if textPos >= currentOffset {
-					if shiftLeft > 0 {
-						i.offset = textPos + textWidth
-						shiftLeft -= screenWidth
-					} else {
-						if textPos+textWidth > i.cursorPos {
-							return true
-						}
-						cursorScreenPos += screenWidth
-					}
-				}
-				return false
-			})
-			Print(screen, Escape(text[i.offset:]), x, y, fieldWidth, AlignLeft, i.fieldTextColor)
-		}
-	}
-
-	// Set cursor.
-	if i.focus.HasFocus() {
-		screen.ShowCursor(x+cursorScreenPos, y)
-	}
-}
-
-// InputHandler returns the handler for this primitive.
-func (i *InputField) InputHandler() func(event *tcell.EventKey, setFocus func(p Primitive)) {
-	return i.WrapInputHandler(func(event *tcell.EventKey, setFocus func(p Primitive)) {
-		// Trigger changed events.
-		currentText := i.text
-		defer func() {
-			if i.text != currentText && i.changed != nil {
-				i.changed(i.text)
-			}
-		}()
-
-		// Movement functions.
-		home := func() { i.cursorPos = 0 }
-		end := func() { i.cursorPos = len(i.text) }
-		moveLeft := func() {
-			iterateStringReverse(i.text[:i.cursorPos], func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool {
-				i.cursorPos -= textWidth
-				return true
-			})
-		}
-		moveRight := func() {
-			iterateString(i.text[i.cursorPos:], func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool {
-				i.cursorPos += textWidth
-				return true
-			})
-		}
-		moveWordLeft := func() {
-			i.cursorPos = len(regexp.MustCompile(`\S+\s*$`).ReplaceAllString(i.text[:i.cursorPos], ""))
-		}
-		moveWordRight := func() {
-			i.cursorPos = len(i.text) - len(regexp.MustCompile(`^\s*\S+\s*`).ReplaceAllString(i.text[i.cursorPos:], ""))
-		}
-
-		// Add character function. Returns whether or not the rune character is
-		// accepted.
-		add := func(r rune) bool {
-			newText := i.text[:i.cursorPos] + string(r) + i.text[i.cursorPos:]
-			if i.accept != nil {
-				return i.accept(newText, r)
-			}
-			i.text = newText
-			i.cursorPos += len(string(r))
-			return true
-		}
-
-		// Process key event.
-		switch key := event.Key(); key {
-		case tcell.KeyRune: // Regular character.
-			if event.Modifiers()&tcell.ModAlt > 0 {
-				// We accept some Alt- key combinations.
-				switch event.Rune() {
-				case 'a': // Home.
-					home()
-				case 'e': // End.
-					end()
-				case 'b': // Move word left.
-					moveWordLeft()
-				case 'f': // Move word right.
-					moveWordRight()
-				}
-			} else {
-				// Other keys are simply accepted as regular characters.
-				if !add(event.Rune()) {
-					break
-				}
-			}
-		case tcell.KeyCtrlU: // Delete all.
-			i.text = ""
-			i.cursorPos = 0
-		case tcell.KeyCtrlK: // Delete until the end of the line.
-			i.text = i.text[:i.cursorPos]
-		case tcell.KeyCtrlW: // Delete last word.
-			lastWord := regexp.MustCompile(`\S+\s*$`)
-			newText := lastWord.ReplaceAllString(i.text[:i.cursorPos], "") + i.text[i.cursorPos:]
-			i.cursorPos -= len(i.text) - len(newText)
-			i.text = newText
-		case tcell.KeyBackspace, tcell.KeyBackspace2: // Delete character before the cursor.
-			iterateStringReverse(i.text[:i.cursorPos], func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool {
-				i.text = i.text[:textPos] + i.text[textPos+textWidth:]
-				i.cursorPos -= textWidth
-				return true
-			})
-			if i.offset >= i.cursorPos {
-				i.offset = 0
-			}
-		case tcell.KeyDelete: // Delete character after the cursor.
-			iterateString(i.text[i.cursorPos:], func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool {
-				i.text = i.text[:i.cursorPos] + i.text[i.cursorPos+textWidth:]
-				return true
-			})
-		case tcell.KeyLeft:
-			if event.Modifiers()&tcell.ModAlt > 0 {
-				moveWordLeft()
-			} else {
-				moveLeft()
-			}
-		case tcell.KeyRight:
-			if event.Modifiers()&tcell.ModAlt > 0 {
-				moveWordRight()
-			} else {
-				moveRight()
-			}
-		case tcell.KeyHome, tcell.KeyCtrlA:
-			home()
-		case tcell.KeyEnd, tcell.KeyCtrlE:
-			end()
-		case tcell.KeyEnter, tcell.KeyTab, tcell.KeyBacktab, tcell.KeyEscape: // We're done.
-			if i.done != nil {
-				i.done(key)
-			}
-			if i.finished != nil {
-				i.finished(key)
-			}
-		}
-	})
-}
-- 
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