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