feat(office): mail preview, infinite scroll, pane resize, and scrollbars

Polish the office TUI with proportional pane layout, drag resize, live
filtering, HTML mail preview, paginated mail lists, overflow scrollbars,
flattened navigation, and project save/status fixes; add UpdateProjectStatus.

Co-authored-by: Cursor <cursoragent@cursor.com>

cmd/office/fetch/calendar.go

@@ -0,0 +1,53 @@
+package fetch
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+// CalendarItemFields maps calendar API rows to list items.
+var CalendarItemFields = FieldMap{IDKey: "objectId", TitleKey: "title"}
+
+// CalendarItemsFromRows converts API calendar/event rows into list items.
+func CalendarItemsFromRows(rows []map[string]any) []model.Item {
+	out := make([]model.Item, 0, len(rows))
+	for _, row := range rows {
+		kind, typeLabel := model.ClassifyCalendarRow(row)
+		title := str(row, "title")
+		if title == "" {
+			title = str(row, "name")
+		}
+		if title == "" {
+			title = "(untitled)"
+		}
+		raw := make(map[string]any, len(row)+1)
+		for k, v := range row {
+			raw[k] = v
+		}
+		raw["type"] = typeLabel
+		out = append(out, model.Item{
+			ID:    idStr(row, "objectId"),
+			Title: title,
+			Kind:  kind,
+			Raw:   raw,
+		})
+	}
+	return out
+}
+
+// ListCalendar returns calendars and events for the upcoming date window.
+func (l *Loader) ListCalendar(ctx context.Context) ([]model.Item, error) {
+	if l == nil || l.Client == nil {
+		return nil, fmt.Errorf("fetch: client is nil")
+	}
+	start := time.Now().AddDate(0, 0, -7).Format("2006-01-02")
+	end := time.Now().AddDate(0, 0, 30).Format("2006-01-02")
+	rows, err := l.Client.ListCalendars(ctx, start, end)
+	if err != nil {
+		return nil, err
+	}
+	return CalendarItemsFromRows(rows), nil
+}

cmd/office/fetch/fetch_integration_test.go

@@ -39,8 +39,7 @@ func TestIntegrationListAllSubjects(t *testing.T) {
 	cases := []model.ListSpec{
 		{Subject: model.SubjectProjects},
 		{Subject: model.SubjectTasks},
-		{Subject: model.SubjectCalendars},
-		{Subject: model.SubjectEvents},
+		{Subject: model.SubjectCalendar},
 		{Subject: model.SubjectContacts},
 		{Subject: model.SubjectPersons},
 		{Subject: model.SubjectCompanies},

cmd/office/fetch/list.go

@@ -6,12 +6,14 @@ import (
 	"os"
 	"path/filepath"
 	"strconv"
-	"time"
 
 	onlyoffice "github.com/eslider/go-onlyoffice"
 	"github.com/eslider/go-onlyoffice/cmd/office/model"
 )
 
+// MailListPageSize is how many messages each infinite-scroll fetch loads.
+const MailListPageSize = 25
+
 // Loader fetches list items for a menu subject using the OnlyOffice client.
 type Loader struct {
 	Client *onlyoffice.Client
@@ -30,10 +32,12 @@ func (l *Loader) List(ctx context.Context, spec model.ListSpec) ([]model.Item, e
 			return l.listTasksForProject(ctx, spec.ProjectID)
 		}
 		return l.listTasks(ctx)
+	case model.SubjectCalendar:
+		return l.ListCalendar(ctx)
 	case model.SubjectCalendars:
-		return l.listCalendars(ctx)
+		return l.ListCalendar(ctx)
 	case model.SubjectEvents:
-		return l.listEvents(ctx)
+		return l.ListCalendar(ctx)
 	case model.SubjectContacts:
 		return l.listContacts(ctx, nil)
 	case model.SubjectPersons:
@@ -49,15 +53,15 @@ func (l *Loader) List(ctx context.Context, spec model.ListSpec) ([]model.Item, e
 	case model.SubjectCRMTasks:
 		return l.listCRMTasks(ctx)
 	case model.SubjectMailInbox:
-		return l.listMail(ctx, onlyoffice.MailFolderInbox)
+		return l.listMail(ctx, onlyoffice.MailFolderInbox, 0)
 	case model.SubjectMailSent:
-		return l.listMail(ctx, onlyoffice.MailFolderSent)
+		return l.listMail(ctx, onlyoffice.MailFolderSent, 0)
 	case model.SubjectMailDrafts:
-		return l.listMail(ctx, onlyoffice.MailFolderDrafts)
+		return l.listMail(ctx, onlyoffice.MailFolderDrafts, 0)
 	case model.SubjectMailTrash:
-		return l.listMail(ctx, onlyoffice.MailFolderTrash)
+		return l.listMail(ctx, onlyoffice.MailFolderTrash, 0)
 	case model.SubjectMailSpam:
-		return l.listMail(ctx, onlyoffice.MailFolderSpam)
+		return l.listMail(ctx, onlyoffice.MailFolderSpam, 0)
 	case model.SubjectUsers:
 		return l.listUsers(ctx)
 	case model.SubjectProjectFiles:
@@ -260,6 +264,9 @@ func (l *Loader) listProjects(ctx context.Context) ([]model.Item, error) {
 		if p.ParticipantCount != nil {
 			raw["participantCount"] = *p.ParticipantCount
 		}
+		if p.Status != nil {
+			raw["status"] = *p.Status
+		}
 		items[i] = model.Item{
 			ID: id, Title: title, Kind: model.KindProject, Raw: raw,
 		}
@@ -275,24 +282,6 @@ func (l *Loader) listTasks(ctx context.Context) ([]model.Item, error) {
 	return ItemsFromMaps(rows, model.KindTask, TaskItemFields), nil
 }
 
-func (l *Loader) listCalendars(ctx context.Context) ([]model.Item, error) {
-	rows, err := l.Client.ListCalendars(ctx, "", "")
-	if err != nil {
-		return nil, err
-	}
-	return ItemsFromMaps(rows, model.KindCalendar, FieldMap{IDKey: "objectId", TitleKey: "title"}), nil
-}
-
-func (l *Loader) listEvents(ctx context.Context) ([]model.Item, error) {
-	start := time.Now().Format("2006-01-02")
-	end := time.Now().AddDate(0, 0, 7).Format("2006-01-02")
-	rows, err := l.Client.ListEvents(ctx, start, end)
-	if err != nil {
-		return nil, err
-	}
-	return ItemsFromMaps(rows, model.KindEvent, FieldMap{IDKey: "objectId", TitleKey: "title", SubtitleKey: "start"}), nil
-}
-
 func (l *Loader) listContacts(ctx context.Context, companyOnly *bool) ([]model.Item, error) {
 	rows, err := l.Client.ListAllContacts(ctx)
 	if err != nil {
@@ -335,14 +324,44 @@ func (l *Loader) listCRMTasks(ctx context.Context) ([]model.Item, error) {
 	return ItemsFromMaps(rows, model.KindCRMTask, TaskItemFields), nil
 }
 
-func (l *Loader) listMail(ctx context.Context, folder int) ([]model.Item, error) {
-	rows, err := l.Client.ListMailMessages(ctx, onlyoffice.MailMessagesFilter{Folder: folder, Count: 50})
+func (l *Loader) listMail(ctx context.Context, folder int, startIndex int) ([]model.Item, error) {
+	rows, err := l.Client.ListMailMessages(ctx, onlyoffice.MailMessagesFilter{
+		Folder:     folder,
+		Count:      MailListPageSize,
+		StartIndex: startIndex,
+	})
 	if err != nil {
 		return nil, err
 	}
 	return ItemsFromMaps(rows, model.KindMail, MailItemFields), nil
 }
 
+// ListMailMore loads the next page of messages for an active mail folder list.
+func (l *Loader) ListMailMore(ctx context.Context, spec model.ListSpec, startIndex int) ([]model.Item, error) {
+	folder, ok := mailFolderForSubject(spec.Subject)
+	if !ok {
+		return nil, fmt.Errorf("fetch: %q is not a mail folder", spec.Subject)
+	}
+	return l.listMail(ctx, folder, startIndex)
+}
+
+func mailFolderForSubject(subject model.Subject) (int, bool) {
+	switch subject {
+	case model.SubjectMailInbox:
+		return onlyoffice.MailFolderInbox, true
+	case model.SubjectMailSent:
+		return onlyoffice.MailFolderSent, true
+	case model.SubjectMailDrafts:
+		return onlyoffice.MailFolderDrafts, true
+	case model.SubjectMailTrash:
+		return onlyoffice.MailFolderTrash, true
+	case model.SubjectMailSpam:
+		return onlyoffice.MailFolderSpam, true
+	default:
+		return 0, false
+	}
+}
+
 func (l *Loader) listUsers(ctx context.Context) ([]model.Item, error) {
 	users, err := l.Client.GetUsers()
 	if err != nil {

cmd/office/fetch/map.go

@@ -14,7 +14,7 @@ type FieldMap struct {
 }
 
 // TaskItemFields is the default field map for project tasks.
-var TaskItemFields = FieldMap{IDKey: "id", TitleKey: "title", SubtitleKey: "status"}
+var TaskItemFields = FieldMap{IDKey: "id", TitleKey: "title"}
 
 // ProjectItemFields is the default field map for projects.
 var ProjectItemFields = FieldMap{IDKey: "id", TitleKey: "title", SubtitleKey: "status"}

cmd/office/fetch/save.go

@@ -10,29 +10,50 @@ import (
 )
 
 // SaveItem persists editable form fields for supported entity kinds.
-func (l *Loader) SaveItem(ctx context.Context, item model.Item, title, description string) error {
+func (l *Loader) SaveItem(ctx context.Context, item model.Item, fields model.FormFields) error {
 	if l == nil || l.Client == nil {
 		return fmt.Errorf("fetch: client is nil")
 	}
 	switch item.Kind {
 	case model.KindTask:
-		return l.UpdateTask(ctx, item.ID, title, description)
+		return l.UpdateTask(ctx, item.ID, fields.Primary, fields.Secondary)
 	case model.KindProject:
-		id, err := strconv.Atoi(item.ID)
-		if err != nil {
-			return err
-		}
-		_, err = l.Client.UpdateProject(onlyoffice.ProjectUpdateRequest{
-			ID:          id,
-			Title:       title,
-			Description: description,
-		})
-		return err
+		return l.saveProject(ctx, item.ID, fields)
 	default:
 		return fmt.Errorf("save not supported for %s", item.Kind)
 	}
 }
 
+func (l *Loader) saveProject(ctx context.Context, projectID string, fields model.FormFields) error {
+	id, err := strconv.Atoi(projectID)
+	if err != nil {
+		return err
+	}
+	if fields.ResponsibleID == "" {
+		raw, derr := l.Detail(ctx, model.Item{ID: projectID, Kind: model.KindProject})
+		if derr == nil {
+			fields.ResponsibleID = model.ResponsibleIDFromRaw(raw)
+		}
+	}
+	req := onlyoffice.ProjectUpdateRequest{
+		ID:          id,
+		Title:       fields.Primary,
+		Description: fields.Secondary,
+	}
+	if fields.ResponsibleID != "" {
+		req.ResponsibleID = fields.ResponsibleID
+	}
+	if _, err := l.Client.UpdateProject(req); err != nil {
+		return err
+	}
+	if fields.HasStatus {
+		if _, err := l.Client.UpdateProjectStatus(id, string(fields.Status)); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
 // DetailForm loads form field values for the detail pane.
 func (l *Loader) DetailForm(ctx context.Context, item model.Item) (model.FormFields, error) {
 	raw, err := l.Detail(ctx, item)

cmd/office/fetch/save_integration_test.go

@@ -0,0 +1,52 @@
+//go:build integration
+
+package fetch_test
+
+import (
+	"testing"
+	"time"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestIntegrationSaveProject(t *testing.T) {
+	loader, ctx := liveLoader(t)
+	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectProjects})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(items) == 0 {
+		t.Skip("no projects")
+	}
+	item := items[0]
+	fields, err := loader.DetailForm(ctx, item)
+	if err != nil {
+		t.Fatalf("DetailForm: %v", err)
+	}
+	if fields.ResponsibleID == "" {
+		t.Skip("project has no responsible id on this instance")
+	}
+	marker := " office-save-test " + time.Now().UTC().Format(time.RFC3339)
+	fields.Primary = fields.Primary + marker
+	if err := loader.SaveItem(ctx, item, fields); err != nil {
+		t.Fatalf("SaveItem: %v", err)
+	}
+	after, err := loader.DetailForm(ctx, item)
+	if err != nil {
+		t.Fatalf("DetailForm after save: %v", err)
+	}
+	if after.Primary != fields.Primary {
+		t.Fatalf("title not saved: got %q want %q", after.Primary, fields.Primary)
+	}
+	fields.Primary = stringsTrimSuffixMarker(after.Primary, marker)
+	if err := loader.SaveItem(ctx, item, fields); err != nil {
+		t.Logf("cleanup save: %v", err)
+	}
+}
+
+func stringsTrimSuffixMarker(s, marker string) string {
+	if len(s) >= len(marker) && s[len(s)-len(marker):] == marker {
+		return s[:len(s)-len(marker)]
+	}
+	return s
+}