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75 lines
2.3 KiB
Go
75 lines
2.3 KiB
Go
// Copyright 2014 The gocui Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package gocui
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// Editor interface must be satisfied by gocui editors.
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type Editor interface {
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Edit(v *View, key Key, ch rune, mod Modifier) bool
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}
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// The EditorFunc type is an adapter to allow the use of ordinary functions as
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// Editors. If f is a function with the appropriate signature, EditorFunc(f)
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// is an Editor object that calls f.
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type EditorFunc func(v *View, key Key, ch rune, mod Modifier) bool
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// Edit calls f(v, key, ch, mod)
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func (f EditorFunc) Edit(v *View, key Key, ch rune, mod Modifier) bool {
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return f(v, key, ch, mod)
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}
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// DefaultEditor is the default editor.
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var DefaultEditor Editor = EditorFunc(SimpleEditor)
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// SimpleEditor is used as the default gocui editor.
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func SimpleEditor(v *View, key Key, ch rune, mod Modifier) bool {
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switch {
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case (key == KeyBackspace || key == KeyBackspace2) && (mod&ModAlt) != 0,
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key == KeyCtrlW:
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v.TextArea.BackSpaceWord()
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case key == KeyBackspace || key == KeyBackspace2 || key == KeyCtrlH:
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v.TextArea.BackSpaceChar()
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case key == KeyCtrlD || key == KeyDelete:
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v.TextArea.DeleteChar()
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case key == KeyArrowDown:
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v.TextArea.MoveCursorDown()
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case key == KeyArrowUp:
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v.TextArea.MoveCursorUp()
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case (key == KeyArrowLeft || ch == 'b') && (mod&ModAlt) != 0:
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v.TextArea.MoveLeftWord()
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case key == KeyArrowLeft || key == KeyCtrlB:
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v.TextArea.MoveCursorLeft()
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case (key == KeyArrowRight || ch == 'f') && (mod&ModAlt) != 0:
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v.TextArea.MoveRightWord()
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case key == KeyArrowRight || key == KeyCtrlF:
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v.TextArea.MoveCursorRight()
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case key == KeyEnter:
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v.TextArea.TypeCharacter("\n")
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case key == KeySpace:
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v.TextArea.TypeCharacter(" ")
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case key == KeyInsert:
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v.TextArea.ToggleOverwrite()
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case key == KeyCtrlU:
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v.TextArea.DeleteToStartOfLine()
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case key == KeyCtrlK:
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v.TextArea.DeleteToEndOfLine()
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case key == KeyCtrlA || key == KeyHome:
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v.TextArea.GoToStartOfLine()
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case key == KeyCtrlE || key == KeyEnd:
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v.TextArea.GoToEndOfLine()
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case key == KeyCtrlW:
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v.TextArea.BackSpaceWord()
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case key == KeyCtrlY:
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v.TextArea.Yank()
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case ch != 0:
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v.TextArea.TypeCharacter(string(ch))
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default:
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return false
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}
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v.RenderTextArea()
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return true
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}
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