Merge pull request #3403 from masmu/refactor/tab-actions

Implemented new actions `FirstTab`, `LastTab`, `FirstSplit` and `LastSplit`

internal/action/actions.go

@@ -1871,27 +1871,38 @@ func (h *BufPane) AddTab() bool {
 
 // PreviousTab switches to the previous tab in the tab list
 func (h *BufPane) PreviousTab() bool {
-	tabsLen := len(Tabs.List)
-	if tabsLen == 1 {
+	if Tabs.Active() == 0 {
 		return false
 	}
-
-	a := Tabs.Active() + tabsLen
-	Tabs.SetActive((a - 1) % tabsLen)
-
+	Tabs.SetActive(Tabs.Active() - 1)
 	return true
 }
 
 // NextTab switches to the next tab in the tab list
 func (h *BufPane) NextTab() bool {
-	tabsLen := len(Tabs.List)
-	if tabsLen == 1 {
+	if Tabs.Active() == len(Tabs.List)-1 {
 		return false
 	}
+	Tabs.SetActive(Tabs.Active() + 1)
+	return true
+}
 
-	a := Tabs.Active()
-	Tabs.SetActive((a + 1) % tabsLen)
+// FirstTab switches to the first tab in the tab list
+func (h *BufPane) FirstTab() bool {
+	if Tabs.Active() == 0 {
+		return false
+	}
+	Tabs.SetActive(0)
+	return true
+}
 
+// LastTab switches to the last tab in the tab list
+func (h *BufPane) LastTab() bool {
+	lastTabIndex := len(Tabs.List) - 1
+	if Tabs.Active() == lastTabIndex {
+		return false
+	}
+	Tabs.SetActive(lastTabIndex)
 	return true
 }
 
@@ -1926,36 +1937,38 @@ func (h *BufPane) Unsplit() bool {
 
 // NextSplit changes the view to the next split
 func (h *BufPane) NextSplit() bool {
-	if len(h.tab.Panes) == 1 {
+	if h.tab.active == len(h.tab.Panes)-1 {
 		return false
 	}
-
-	a := h.tab.active
-	if a < len(h.tab.Panes)-1 {
-		a++
-	} else {
-		a = 0
-	}
-
-	h.tab.SetActive(a)
-
+	h.tab.SetActive(h.tab.active + 1)
 	return true
 }
 
 // PreviousSplit changes the view to the previous split
 func (h *BufPane) PreviousSplit() bool {
-	if len(h.tab.Panes) == 1 {
+	if h.tab.active == 0 {
 		return false
 	}
+	h.tab.SetActive(h.tab.active - 1)
+	return true
+}
 
-	a := h.tab.active
-	if a > 0 {
-		a--
-	} else {
-		a = len(h.tab.Panes) - 1
+// FirstSplit changes the view to the first split
+func (h *BufPane) FirstSplit() bool {
+	if h.tab.active == 0 {
+		return false
 	}
-	h.tab.SetActive(a)
+	h.tab.SetActive(0)
+	return true
+}
 
+// LastSplit changes the view to the last split
+func (h *BufPane) LastSplit() bool {
+	lastPaneIdx := len(h.tab.Panes) - 1
+	if h.tab.active == lastPaneIdx {
+		return false
+	}
+	h.tab.SetActive(lastPaneIdx)
 	return true
 }
 

internal/action/bufpane.go

@@ -660,9 +660,13 @@ func (h *BufPane) DoRuneInsert(r rune) {
 func (h *BufPane) VSplitIndex(buf *buffer.Buffer, right bool) *BufPane {
 	e := NewBufPaneFromBuf(buf, h.tab)
 	e.splitID = MainTab().GetNode(h.splitID).VSplit(right)
-	MainTab().Panes = append(MainTab().Panes, e)
+	currentPaneIdx := MainTab().GetPane(h.splitID)
+	if right {
+		currentPaneIdx++
+	}
+	MainTab().AddPane(e, currentPaneIdx)
 	MainTab().Resize()
-	MainTab().SetActive(len(MainTab().Panes) - 1)
+	MainTab().SetActive(currentPaneIdx)
 	return e
 }
 
@@ -670,9 +674,13 @@ func (h *BufPane) VSplitIndex(buf *buffer.Buffer, right bool) *BufPane {
 func (h *BufPane) HSplitIndex(buf *buffer.Buffer, bottom bool) *BufPane {
 	e := NewBufPaneFromBuf(buf, h.tab)
 	e.splitID = MainTab().GetNode(h.splitID).HSplit(bottom)
-	MainTab().Panes = append(MainTab().Panes, e)
+	currentPaneIdx := MainTab().GetPane(h.splitID)
+	if bottom {
+		currentPaneIdx++
+	}
+	MainTab().AddPane(e, currentPaneIdx)
 	MainTab().Resize()
-	MainTab().SetActive(len(MainTab().Panes) - 1)
+	MainTab().SetActive(currentPaneIdx)
 	return e
 }
 
@@ -822,8 +830,12 @@ var BufKeyActions = map[string]BufKeyAction{
 	"AddTab":                    (*BufPane).AddTab,
 	"PreviousTab":               (*BufPane).PreviousTab,
 	"NextTab":                   (*BufPane).NextTab,
+	"FirstTab":                  (*BufPane).FirstTab,
+	"LastTab":                   (*BufPane).LastTab,
 	"NextSplit":                 (*BufPane).NextSplit,
 	"PreviousSplit":             (*BufPane).PreviousSplit,
+	"FirstSplit":                (*BufPane).FirstSplit,
+	"LastSplit":                 (*BufPane).LastSplit,
 	"Unsplit":                   (*BufPane).Unsplit,
 	"VSplit":                    (*BufPane).VSplitAction,
 	"HSplit":                    (*BufPane).HSplitAction,

internal/action/defaults.go

@@ -3,7 +3,7 @@ package action
 var termdefaults = map[string]string{
 	"<Ctrl-q><Ctrl-q>": "Exit",
 	"<Ctrl-e><Ctrl-e>": "CommandMode",
-	"<Ctrl-w><Ctrl-w>": "NextSplit",
+	"<Ctrl-w><Ctrl-w>": "NextSplit|FirstSplit",
 }
 
 // DefaultBindings returns a map containing micro's default keybindings

internal/action/defaults_darwin.go

@@ -52,16 +52,16 @@ var bufdefaults = map[string]string{
 	"Ctrl-v":         "Paste",
 	"Ctrl-a":         "SelectAll",
 	"Ctrl-t":         "AddTab",
-	"Alt-,":          "PreviousTab",
-	"Alt-.":          "NextTab",
+	"Alt-,":          "PreviousTab|LastTab",
+	"Alt-.":          "NextTab|FirstTab",
 	"Home":           "StartOfTextToggle",
 	"End":            "EndOfLine",
 	"CtrlHome":       "CursorStart",
 	"CtrlEnd":        "CursorEnd",
 	"PageUp":         "CursorPageUp",
 	"PageDown":       "CursorPageDown",
-	"CtrlPageUp":     "PreviousTab",
-	"CtrlPageDown":   "NextTab",
+	"CtrlPageUp":     "PreviousTab|LastTab",
+	"CtrlPageDown":   "NextTab|FirstTab",
 	"ShiftPageUp":    "SelectPageUp",
 	"ShiftPageDown":  "SelectPageDown",
 	"Ctrl-g":         "ToggleHelp",
@@ -72,7 +72,7 @@ var bufdefaults = map[string]string{
 	"Ctrl-b":         "ShellMode",
 	"Ctrl-q":         "Quit",
 	"Ctrl-e":         "CommandMode",
-	"Ctrl-w":         "NextSplit",
+	"Ctrl-w":         "NextSplit|FirstSplit",
 	"Ctrl-u":         "ToggleMacro",
 	"Ctrl-j":         "PlayMacro",
 	"Insert":         "ToggleOverwriteMode",

internal/action/defaults_other.go

@@ -55,16 +55,16 @@ var bufdefaults = map[string]string{
 	"Ctrl-v":         "Paste",
 	"Ctrl-a":         "SelectAll",
 	"Ctrl-t":         "AddTab",
-	"Alt-,":          "PreviousTab",
-	"Alt-.":          "NextTab",
+	"Alt-,":          "PreviousTab|LastTab",
+	"Alt-.":          "NextTab|FirstTab",
 	"Home":           "StartOfTextToggle",
 	"End":            "EndOfLine",
 	"CtrlHome":       "CursorStart",
 	"CtrlEnd":        "CursorEnd",
 	"PageUp":         "CursorPageUp",
 	"PageDown":       "CursorPageDown",
-	"CtrlPageUp":     "PreviousTab",
-	"CtrlPageDown":   "NextTab",
+	"CtrlPageUp":     "PreviousTab|LastTab",
+	"CtrlPageDown":   "NextTab|FirstTab",
 	"ShiftPageUp":    "SelectPageUp",
 	"ShiftPageDown":  "SelectPageDown",
 	"Ctrl-g":         "ToggleHelp",
@@ -75,7 +75,7 @@ var bufdefaults = map[string]string{
 	"Ctrl-b":         "ShellMode",
 	"Ctrl-q":         "Quit",
 	"Ctrl-e":         "CommandMode",
-	"Ctrl-w":         "NextSplit",
+	"Ctrl-w":         "NextSplit|FirstSplit",
 	"Ctrl-u":         "ToggleMacro",
 	"Ctrl-j":         "PlayMacro",
 	"Insert":         "ToggleOverwriteMode",

internal/action/tab.go

@@ -349,6 +349,16 @@ func (t *Tab) SetActive(i int) {
 	}
 }
 
+// AddPane adds a pane at a given index
+func (t *Tab) AddPane(pane Pane, i int) {
+	if len(t.Panes) == i {
+		t.Panes = append(t.Panes, pane)
+		return
+	}
+	t.Panes = append(t.Panes[:i+1], t.Panes[i:]...)
+	t.Panes[i] = pane
+}
+
 // GetPane returns the pane with the given split index
 func (t *Tab) GetPane(splitid uint64) int {
 	for i, p := range t.Panes {

runtime/help/keybindings.md

@@ -253,11 +253,15 @@ QuitAll
 AddTab
 PreviousTab
 NextTab
+FirstTab
+LastTab
 NextSplit
 Unsplit
 VSplit
 HSplit
 PreviousSplit
+FirstSplit
+LastSplit
 ToggleMacro
 PlayMacro
 Suspend (Unix only)
@@ -510,16 +514,16 @@ conventions for text editing defaults.
     "Ctrl-v":         "Paste",
     "Ctrl-a":         "SelectAll",
     "Ctrl-t":         "AddTab",
-    "Alt-,":          "PreviousTab",
-    "Alt-.":          "NextTab",
+    "Alt-,":          "PreviousTab|LastTab",
+    "Alt-.":          "NextTab|FirstTab",
     "Home":           "StartOfText",
     "End":            "EndOfLine",
     "CtrlHome":       "CursorStart",
     "CtrlEnd":        "CursorEnd",
     "PageUp":         "CursorPageUp",
     "PageDown":       "CursorPageDown",
-    "CtrlPageUp":     "PreviousTab",
-    "CtrlPageDown":   "NextTab",
+    "CtrlPageUp":     "PreviousTab|LastTab",
+    "CtrlPageDown":   "NextTab|FirstTab",
     "ShiftPageUp":    "SelectPageUp",
     "ShiftPageDown":  "SelectPageDown",
     "Ctrl-g":         "ToggleHelp",
@@ -530,7 +534,7 @@ conventions for text editing defaults.
     "Ctrl-b":         "ShellMode",
     "Ctrl-q":         "Quit",
     "Ctrl-e":         "CommandMode",
-    "Ctrl-w":         "NextSplit",
+    "Ctrl-w":         "NextSplit|FirstSplit",
     "Ctrl-u":         "ToggleMacro",
     "Ctrl-j":         "PlayMacro",
     "Insert":         "ToggleOverwriteMode",