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package clipboard
import (
"bytes"
)
// For storing multi cursor clipboard contents
type multiClipboard map[Register][]string
var multi multiClipboard
func (c multiClipboard) getAllText(r Register) string {
content := c[r]
if content == nil {
return ""
}
buf := &bytes.Buffer{}
for _, s := range content {
buf.WriteString(s)
}
return buf.String()
}
func (c multiClipboard) getText(r Register, num int) string {
content := c[r]
if content == nil || len(content) <= num {
return ""
}
return content[num]
}
// isValid checks if the text stored in this multi-clipboard is the same as the
// text stored in the system clipboard (provided as an argument), and therefore
// if it is safe to use the multi-clipboard for pasting instead of the system
// clipboard.
func (c multiClipboard) isValid(r Register, clipboard string, ncursors int) bool {
content := c[r]
if content == nil || len(content) != ncursors {
return false
}
return clipboard == c.getAllText(r)
}
func (c multiClipboard) writeText(text string, r Register, num int, ncursors int) {
content := c[r]
if content == nil || len(content) != ncursors {
content = make([]string, ncursors, ncursors)
c[r] = content
}
if num >= ncursors {
return
}
content[num] = text
}
func init() {
multi = make(multiClipboard)
}
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