From d9b8a04841f8e6daee49265b16e8c4efd712a886 Mon Sep 17 00:00:00 2001
From: Zachary Yedidia <zyedidia@gmail.com>
Date: Fri, 2 Sep 2016 09:40:08 -0400
Subject: [PATCH] Add support for primary clipboard

---
 cmd/micro/actions.go   | 33 +++++++++++++++++++--------------
 cmd/micro/bindings.go  |  1 +
 cmd/micro/messenger.go |  2 +-
 cmd/micro/micro.go     |  2 +-
 cmd/micro/view.go      | 18 ++++++++++++++++++
 5 files changed, 40 insertions(+), 16 deletions(-)

diff --git a/cmd/micro/actions.go b/cmd/micro/actions.go
index e1b66c90..1d99b219 100644
--- a/cmd/micro/actions.go
+++ b/cmd/micro/actions.go
@@ -845,7 +845,7 @@ func (v *View) Copy(usePlugin bool) bool {
 	}
 
 	if v.Cursor.HasSelection() {
-		clipboard.WriteAll(v.Cursor.GetSelection())
+		clipboard.WriteAll(v.Cursor.GetSelection(), "clipboard")
 		v.freshClip = true
 		messenger.Message("Copied selection")
 	}
@@ -868,10 +868,10 @@ func (v *View) CutLine(usePlugin bool) bool {
 	}
 	if v.freshClip == true {
 		if v.Cursor.HasSelection() {
-			if clip, err := clipboard.ReadAll(); err != nil {
+			if clip, err := clipboard.ReadAll("clipboard"); err != nil {
 				messenger.Error(err)
 			} else {
-				clipboard.WriteAll(clip + v.Cursor.GetSelection())
+				clipboard.WriteAll(clip+v.Cursor.GetSelection(), "clipboard")
 			}
 		}
 	} else if time.Since(v.lastCutTime)/time.Second > 10*time.Second || v.freshClip == false {
@@ -896,7 +896,7 @@ func (v *View) Cut(usePlugin bool) bool {
 	}
 
 	if v.Cursor.HasSelection() {
-		clipboard.WriteAll(v.Cursor.GetSelection())
+		clipboard.WriteAll(v.Cursor.GetSelection(), "clipboard")
 		v.Cursor.DeleteSelection()
 		v.Cursor.ResetSelection()
 		v.freshClip = true
@@ -955,18 +955,23 @@ func (v *View) Paste(usePlugin bool) bool {
 		return false
 	}
 
-	leadingWS := GetLeadingWhitespace(v.Buf.Line(v.Cursor.Y))
+	clip, _ := clipboard.ReadAll("clipboard")
+	v.paste(clip)
 
-	if v.Cursor.HasSelection() {
-		v.Cursor.DeleteSelection()
-		v.Cursor.ResetSelection()
+	if usePlugin {
+		return PostActionCall("Paste", v)
 	}
-	clip, _ := clipboard.ReadAll()
-	clip = strings.Replace(clip, "\n", "\n"+leadingWS, -1)
-	v.Buf.Insert(v.Cursor.Loc, clip)
-	v.Cursor.Loc = v.Cursor.Loc.Move(Count(clip), v.Buf)
-	v.freshClip = false
-	messenger.Message("Pasted clipboard")
+	return true
+}
+
+// PastePrimary pastes from the primary clipboard (only use on linux)
+func (v *View) PastePrimary(usePlugin bool) bool {
+	if usePlugin && !PreActionCall("Paste", v) {
+		return false
+	}
+
+	clip, _ := clipboard.ReadAll("primary")
+	v.paste(clip)
 
 	if usePlugin {
 		return PostActionCall("Paste", v)
diff --git a/cmd/micro/bindings.go b/cmd/micro/bindings.go
index 5172c698..0506ab36 100644
--- a/cmd/micro/bindings.go
+++ b/cmd/micro/bindings.go
@@ -55,6 +55,7 @@ var bindingActions = map[string]func(*View, bool) bool{
 	"IndentSelection":     (*View).IndentSelection,
 	"OutdentSelection":    (*View).OutdentSelection,
 	"Paste":               (*View).Paste,
+	"PastePrimary":        (*View).PastePrimary,
 	"SelectAll":           (*View).SelectAll,
 	"OpenFile":            (*View).OpenFile,
 	"Start":               (*View).Start,
diff --git a/cmd/micro/messenger.go b/cmd/micro/messenger.go
index b57d7ff1..be82a081 100644
--- a/cmd/micro/messenger.go
+++ b/cmd/micro/messenger.go
@@ -287,7 +287,7 @@ func (m *Messenger) HandleEvent(event tcell.Event, history []string) {
 				m.cursorx--
 			}
 		case tcell.KeyCtrlV:
-			clip, _ := clipboard.ReadAll()
+			clip, _ := clipboard.ReadAll("clipboard")
 			m.response = Insert(m.response, m.cursorx, clip)
 			m.cursorx += Count(clip)
 		case tcell.KeyRune:
diff --git a/cmd/micro/micro.go b/cmd/micro/micro.go
index 8ee384b9..7ecd5a5f 100644
--- a/cmd/micro/micro.go
+++ b/cmd/micro/micro.go
@@ -353,7 +353,7 @@ func main() {
 					// we copy it to the clipboard.
 					// Often error messages are displayed down there so it can be useful to easily
 					// copy the message
-					clipboard.WriteAll(messenger.message)
+					clipboard.WriteAll(messenger.message, "primary")
 					continue
 				}
 
diff --git a/cmd/micro/view.go b/cmd/micro/view.go
index 28d59d12..95f75424 100644
--- a/cmd/micro/view.go
+++ b/cmd/micro/view.go
@@ -145,6 +145,20 @@ func (v *View) ToggleTabbar() {
 	}
 }
 
+func (v *View) paste(clip string) {
+	leadingWS := GetLeadingWhitespace(v.Buf.Line(v.Cursor.Y))
+
+	if v.Cursor.HasSelection() {
+		v.Cursor.DeleteSelection()
+		v.Cursor.ResetSelection()
+	}
+	clip = strings.Replace(clip, "\n", "\n"+leadingWS, -1)
+	v.Buf.Insert(v.Cursor.Loc, clip)
+	v.Cursor.Loc = v.Cursor.Loc.Move(Count(clip), v.Buf)
+	v.freshClip = false
+	messenger.Message("Pasted clipboard")
+}
+
 // ScrollUp scrolls the view up n lines (if possible)
 func (v *View) ScrollUp(n int) {
 	// Try to scroll by n but if it would overflow, scroll by 1
@@ -414,6 +428,10 @@ func (v *View) HandleEvent(event tcell.Event) {
 					v.Cursor.CurSelection[1] = v.Cursor.Loc
 				}
 			}
+		case tcell.Button2:
+			// Middle mouse button was clicked,
+			// We should paste primary
+			v.PastePrimary(true)
 		case tcell.ButtonNone:
 			// Mouse event with no click
 			if !v.mouseReleased {