fix: fs tree min width to be enough to not have line splits

internal/ui/fstree/model.go

@@ -85,6 +85,11 @@ type FsTree struct {
 	totalLines      int
 	oldSelected     *FsNode
 	startOffset     int
+	maxContentWidth int
+}
+
+func (t *FsTree) ContentWidth() int {
+	return t.maxContentWidth
 }
 
 // ==================== Bubble Tea Interface Implementation ====================
@@ -92,13 +97,18 @@ func (t *FsTree) Init() tea.Cmd {
 	return nil
 }
 
+type ContentSizeChangeMsg struct{}
+
 func (t *FsTree) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 	switch m := msg.(type) {
 	case PerformActionMsg:
 		err := t.PerformAction(m.Action, m.Name)
 		if err != nil {
 			t.ErrMsg = err.Error()
+			return t, nil
 		}
+		// todo: standardise these messages
+		return t, func() tea.Msg { return ContentSizeChangeMsg{} }
 	case tea.WindowSizeMsg:
 		t.width = m.Width
 		t.height = m.Height
@@ -446,6 +456,7 @@ func (t *FsTree) renderNode(node *FsNode, depth int, builder *strings.Builder) {
 
 // builds a cache of line num to rendered node in view
 func (t *FsTree) BuildLines() {
+	t.maxContentWidth = 0
 	t.lines = make(map[int]*FsNode)
 	line := -1
 	flatTree := make([]*FsNode, 0)
@@ -461,7 +472,7 @@ func (t *FsTree) BuildLines() {
 	}
 }
 
-// Deprecated: isn't meant to be used directly
+// isn't meant to be used directly
 func (t *FsTree) buildLinesRec(node *FsNode, depth int, currentLine *int, flatTree *[]*FsNode) {
 	if node == nil {
 		return
@@ -475,6 +486,14 @@ func (t *FsTree) buildLinesRec(node *FsNode, depth int, currentLine *int, flatTr
 	*flatTree = append(*flatTree, node)
 	(*currentLine)++
 
+	// update max width
+	if depth > 0 {
+		w := depth + 2 + len(node.FileName())
+		if w > t.maxContentWidth {
+			t.maxContentWidth = w
+		}
+	}
+
 	if node.Expanded {
 		for _, child := range node.Children {
 			t.buildLinesRec(child, depth+1, currentLine, flatTree)
@@ -539,6 +558,7 @@ func (t *FsTree) CreateNode(folder *FsNode, name string, nodeType FsNodeType) er
 	}
 	t.SelectedNode = newNode
 	t.BuildLines()
+
 	return nil
 }
 

layout.go

@@ -2,7 +2,6 @@ package main
 
 // layout constants
 const (
-	minFsTreeWidth     = 5
 	minNoteViewWidth   = 10
 	dividerWidth       = 1
 	dragHitArea        = 2 // +/- chars around divider
@@ -11,9 +10,9 @@ const (
 	fsTreeWidthPercent = 15
 )
 
-// calculateLayout computes the widths for the file tree and note view
+// getUpdatedWindowSizes computes the widths for the file tree and note view
 // based on the terminal dimensions and the desired tree width.
-func calculateLayout(totalWidth, requestedTreeWidth int) (treeWidth, noteWidth int) {
+func getUpdatedWindowSizes(totalWidth, requestedTreeWidth, minTreeWidth int) (treeWidth, noteWidth int) {
 	treeWidth = requestedTreeWidth
 
 	if treeWidth == 0 {
@@ -26,8 +25,9 @@ func calculateLayout(totalWidth, requestedTreeWidth int) (treeWidth, noteWidth i
 	if treeWidth > maxTreeWidth {
 		treeWidth = maxTreeWidth
 	}
-	if treeWidth < minFsTreeWidth {
-		treeWidth = minFsTreeWidth
+
+	if treeWidth < minTreeWidth {
+		treeWidth = minTreeWidth
 	}
 
 	noteWidth = max(0, totalWidth-treeWidth-dividerWidth)

main.go

@@ -79,7 +79,11 @@ func (m *model) loadTreeCmd(path string) tea.Cmd {
 func (m *model) layout(width, height int) {
 	m.terminalWidth = width
 	m.terminalHeight = height
-	m.fsTreeWidth, m.noteViewWidth = calculateLayout(width, m.fsTreeWidth)
+	minW := 0
+	if m.tree != nil {
+		minW = m.tree.ContentWidth()
+	}
+	m.fsTreeWidth, m.noteViewWidth = getUpdatedWindowSizes(width, m.fsTreeWidth, minW)
 
 	h := height
 	if m.showStatusBar || m.inputMode {
@@ -120,6 +124,8 @@ func (m *model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 	case treeLoadedMsg:
 		m.tree = msg.tree
 		m.loading = false
+		m.fsTreeWidth = m.tree.ContentWidth()
+		m.fsTreeWidth, m.noteViewWidth = getUpdatedWindowSizes(m.terminalWidth, m.fsTreeWidth, m.tree.ContentWidth())
 		_, cmd := m.tree.Update(tea.WindowSizeMsg{
 			Height: m.contentHeight,
 			Width:  m.fsTreeWidth,
@@ -149,6 +155,12 @@ func (m *model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			return m, cmd
 		}
 
+	case fstree.ContentSizeChangeMsg:
+		// layout update needed, sent when a new note is created
+		m.fsTreeWidth, m.noteViewWidth = getUpdatedWindowSizes(m.terminalWidth, m.tree.ContentWidth(), m.tree.ContentWidth())
+		// TODO: this can be simplified a lot
+		return m, m.resizeChildren() // batches two updates
+
 	case fstree.RequestInputMsg:
 		m.inputMode = true
 		m.pendingAction = msg.Action
@@ -250,7 +262,7 @@ func (m *model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			m.isHoveringDivider = isHoveringDivider(msg.X, m.fsTreeWidth)
 
 			if m.isDragging {
-				m.fsTreeWidth, m.noteViewWidth = calculateLayout(m.terminalWidth, msg.X)
+				m.fsTreeWidth, m.noteViewWidth = getUpdatedWindowSizes(m.terminalWidth, msg.X, m.tree.ContentWidth())
 
 				// Update children with new sizes
 				return m, m.resizeChildren()