Tabs have labels of the URL domain instead of numbers

Fixes #202

CHANGELOG.md

@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - Center text automatically, removing `left_margin` from the config (#233)
 - `max_width` defaults to 80 columns instead of 100 (#233)
+- Tabs have the domain of the current page instead of numbers (#202)
 
 ### Fixed
 - Modal can't be closed when opening non-gemini text URLs from the commandline (#283, #284)

display/display.go

@@ -88,7 +88,7 @@ func Init(version, commit, builtBy string) {
 				// Overwrite all tabs with a new, differently sized, left margin
 				browser.AddTab(
 					strconv.Itoa(i),
-					makeTabLabel(strconv.Itoa(i+1)),
+					tabs[i].label(),
 					makeContentLayout(tabs[i].view, leftMargin()),
 				)
 				if tabs[i] == t {
@@ -438,7 +438,7 @@ func NewTabWithURL(url string) {
 
 	browser.AddTab(
 		strconv.Itoa(curTab),
-		makeTabLabel(strconv.Itoa(curTab+1)),
+		tabs[curTab].label(),
 		makeContentLayout(tabs[curTab].view, leftMargin()),
 	)
 	browser.SetCurrentTab(strconv.Itoa(curTab))

display/private.go

@@ -118,7 +118,7 @@ func setPage(t *tab, p *structs.Page) {
 	tabNum := tabNumber(t)
 	browser.AddTab(
 		strconv.Itoa(tabNum),
-		makeTabLabel(strconv.Itoa(tabNum+1)),
+		t.label(),
 		makeContentLayout(t.view, leftMargin()),
 	)
 	App.Draw()

display/tab.go

@@ -3,6 +3,7 @@ package display
 import (
 	"fmt"
 	"net/url"
+	"path"
 	"strconv"
 	"strings"
 
@@ -389,7 +390,7 @@ func (t *tab) applyHorizontalScroll() {
 		// Scrolled to the right far enough that no left margin is needed
 		browser.AddTab(
 			strconv.Itoa(i),
-			makeTabLabel(strconv.Itoa(i+1)),
+			t.label(),
 			makeContentLayout(t.view, 0),
 		)
 		t.view.ScrollTo(t.page.Row, t.page.Column-leftMargin())
@@ -397,7 +398,7 @@ func (t *tab) applyHorizontalScroll() {
 		// Left margin is still needed, but is not necessarily at the right size by default
 		browser.AddTab(
 			strconv.Itoa(i),
-			makeTabLabel(strconv.Itoa(i+1)),
+			t.label(),
 			makeContentLayout(t.view, leftMargin()-t.page.Column),
 		)
 	}
@@ -508,3 +509,35 @@ func (t *tab) highlightedURL() string {
 	}
 	return ""
 }
+
+// label returns the label to use for the tab name
+func (t *tab) label() string {
+	tn := tabNumber(t)
+	if tn < 0 {
+		// Invalid tab, shouldn't happen
+		return ""
+	}
+
+	// Increment so there's no tab 0 in the label
+	tn++
+
+	if t.page.URL == "" || t.page.URL == "about:newtab" {
+		// Just use tab number
+		// Spaces around to keep original Amfora look
+		return fmt.Sprintf(" %d ", tn)
+	}
+	if strings.HasPrefix(t.page.URL, "about:") {
+		// Don't look for domain, put the whole URL except query strings
+		return strings.SplitN(t.page.URL, "?", 2)[0]
+	}
+	if strings.HasPrefix(t.page.URL, "file://") {
+		// File URL, use file or folder as tab name
+		return path.Base(t.page.URL[7:])
+	}
+	// Otherwise, it's a Gemini URL
+	pu, err := url.Parse(t.page.URL)
+	if err != nil {
+		return fmt.Sprintf(" %d ", tn)
+	}
+	return pu.Host
+}

display/util.go

@@ -32,12 +32,6 @@ func makeContentLayout(tv *cview.TextView, leftMargin int) *cview.Flex {
 	return vert
 }
 
-// makeTabLabel takes a string and adds spacing to it, making it
-// suitable for display as a tab label.
-func makeTabLabel(s string) string {
-	return " " + s + " "
-}
-
 // tabNumber gets the index of the tab in the tabs slice. It returns -1
 // if the tab is not in that slice.
 func tabNumber(t *tab) int {