package termui import ( "fmt" "github.com/MichaelMure/git-bug/bug" "github.com/MichaelMure/git-bug/cache" "github.com/MichaelMure/git-bug/util" "github.com/dustin/go-humanize" "github.com/jroimartin/gocui" ) const bugTableView = "bugTableView" const bugTableHeaderView = "bugTableHeaderView" const bugTableFooterView = "bugTableFooterView" const bugTableInstructionView = "bugTableInstructionView" type bugTable struct { repo cache.RepoCacher allIds []string bugs []cache.BugCacher pageCursor int selectCursor int } func newBugTable(cache cache.RepoCacher) *bugTable { return &bugTable{ repo: cache, pageCursor: 0, selectCursor: 0, } } func (bt *bugTable) layout(g *gocui.Gui) error { maxX, maxY := g.Size() if maxY < 4 { // window too small ! return nil } v, err := g.SetView(bugTableHeaderView, -1, -1, maxX, 3) if err != nil { if err != gocui.ErrUnknownView { return err } v.Frame = false } v.Clear() bt.renderHeader(v, maxX) v, err = g.SetView(bugTableView, -1, 1, maxX, maxY-3) if err != nil { if err != gocui.ErrUnknownView { return err } v.Frame = false v.Highlight = true v.SelBgColor = gocui.ColorWhite v.SelFgColor = gocui.ColorBlack // restore the cursor // window is too small to set the cursor properly, ignoring the error _ = v.SetCursor(0, bt.selectCursor) } _, viewHeight := v.Size() err = bt.paginate(viewHeight) if err != nil { return err } err = bt.cursorClamp(v) if err != nil { return err } v.Clear() bt.render(v, maxX) v, err = g.SetView(bugTableFooterView, -1, maxY-4, maxX, maxY) if err != nil { if err != gocui.ErrUnknownView { return err } v.Frame = false } v.Clear() bt.renderFooter(v, maxX) v, err = g.SetView(bugTableInstructionView, -1, maxY-2, maxX, maxY) if err != nil { if err != gocui.ErrUnknownView { return err } v.Frame = false v.BgColor = gocui.ColorBlue fmt.Fprintf(v, "[q] Quit [←,h] Previous page [↓,j] Down [↑,k] Up [→,l] Next page [enter] Open bug [n] New bug") } _, err = g.SetCurrentView(bugTableView) return err } func (bt *bugTable) keybindings(g *gocui.Gui) error { // Quit if err := g.SetKeybinding(bugTableView, 'q', gocui.ModNone, quit); err != nil { return err } // Down if err := g.SetKeybinding(bugTableView, 'j', gocui.ModNone, bt.cursorDown); err != nil { return err } if err := g.SetKeybinding(bugTableView, gocui.KeyArrowDown, gocui.ModNone, bt.cursorDown); err != nil { return err } // Up if err := g.SetKeybinding(bugTableView, 'k', gocui.ModNone, bt.cursorUp); err != nil { return err } if err := g.SetKeybinding(bugTableView, gocui.KeyArrowUp, gocui.ModNone, bt.cursorUp); err != nil { return err } // Previous page if err := g.SetKeybinding(bugTableView, 'h', gocui.ModNone, bt.previousPage); err != nil { return err } if err := g.SetKeybinding(bugTableView, gocui.KeyArrowLeft, gocui.ModNone, bt.previousPage); err != nil { return err } if err := g.SetKeybinding(bugTableView, gocui.KeyPgup, gocui.ModNone, bt.previousPage); err != nil { return err } // Next page if err := g.SetKeybinding(bugTableView, 'l', gocui.ModNone, bt.nextPage); err != nil { return err } if err := g.SetKeybinding(bugTableView, gocui.KeyArrowRight, gocui.ModNone, bt.nextPage); err != nil { return err } if err := g.SetKeybinding(bugTableView, gocui.KeyPgdn, gocui.ModNone, bt.nextPage); err != nil { return err } // New bug if err := g.SetKeybinding(bugTableView, 'n', gocui.ModNone, bt.newBug); err != nil { return err } // Open bug if err := g.SetKeybinding(bugTableView, gocui.KeyEnter, gocui.ModNone, bt.openBug); err != nil { return err } return nil } func (bt *bugTable) disable(g *gocui.Gui) error { if err := g.DeleteView(bugTableView); err != nil { return err } if err := g.DeleteView(bugTableHeaderView); err != nil { return err } if err := g.DeleteView(bugTableFooterView); err != nil { return err } if err := g.DeleteView(bugTableInstructionView); err != nil { return err } return nil } func (bt *bugTable) paginate(max int) error { allIds, err := bt.repo.AllBugIds() if err != nil { return err } bt.allIds = allIds return bt.doPaginate(allIds, max) } func (bt *bugTable) doPaginate(allIds []string, max int) error { // clamp the cursor bt.pageCursor = maxInt(bt.pageCursor, 0) bt.pageCursor = minInt(bt.pageCursor, len(allIds)) nb := minInt(len(allIds)-bt.pageCursor, max) if nb < 0 { bt.bugs = []cache.BugCacher{} return nil } // slice the data ids := allIds[bt.pageCursor : bt.pageCursor+nb] bt.bugs = make([]cache.BugCacher, len(ids)) for i, id := range ids { b, err := bt.repo.ResolveBug(id) if err != nil { return err } bt.bugs[i] = b } return nil } func (bt *bugTable) getTableLength() int { return len(bt.bugs) } func (bt *bugTable) getColumnWidths(maxX int) map[string]int { m := make(map[string]int) m["id"] = 10 m["status"] = 8 left := maxX - 5 - m["id"] - m["status"] m["summary"] = maxInt(11, left/6) left -= m["summary"] m["lastEdit"] = maxInt(19, left/6) left -= m["lastEdit"] m["author"] = maxInt(left*2/5, 15) m["title"] = maxInt(left-m["author"], 10) return m } func (bt *bugTable) render(v *gocui.View, maxX int) { columnWidths := bt.getColumnWidths(maxX) for _, b := range bt.bugs { person := bug.Person{} snap := b.Snapshot() if len(snap.Comments) > 0 { create := snap.Comments[0] person = create.Author } id := util.LeftPaddedString(snap.HumanId(), columnWidths["id"], 2) status := util.LeftPaddedString(snap.Status.String(), columnWidths["status"], 2) title := util.LeftPaddedString(snap.Title, columnWidths["title"], 2) author := util.LeftPaddedString(person.Name, columnWidths["author"], 2) summary := util.LeftPaddedString(snap.Summary(), columnWidths["summary"], 2) lastEdit := util.LeftPaddedString(humanize.Time(snap.LastEdit()), columnWidths["lastEdit"], 2) fmt.Fprintf(v, "%s %s %s %s %s %s\n", util.Cyan(id), util.Yellow(status), title, util.Magenta(author), summary, lastEdit, ) } } func (bt *bugTable) renderHeader(v *gocui.View, maxX int) { columnWidths := bt.getColumnWidths(maxX) id := util.LeftPaddedString("ID", columnWidths["id"], 2) status := util.LeftPaddedString("STATUS", columnWidths["status"], 2) title := util.LeftPaddedString("TITLE", columnWidths["title"], 2) author := util.LeftPaddedString("AUTHOR", columnWidths["author"], 2) summary := util.LeftPaddedString("SUMMARY", columnWidths["summary"], 2) lastEdit := util.LeftPaddedString("LAST EDIT", columnWidths["lastEdit"], 2) fmt.Fprintf(v, "\n") fmt.Fprintf(v, "%s %s %s %s %s %s\n", id, status, title, author, summary, lastEdit) } func (bt *bugTable) renderFooter(v *gocui.View, maxX int) { fmt.Fprintf(v, " \nShowing %d of %d bugs", len(bt.bugs), len(bt.allIds)) } func (bt *bugTable) cursorDown(g *gocui.Gui, v *gocui.View) error { _, y := v.Cursor() y = minInt(y+1, bt.getTableLength()-1) // window is too small to set the cursor properly, ignoring the error _ = v.SetCursor(0, y) bt.selectCursor = y return nil } func (bt *bugTable) cursorUp(g *gocui.Gui, v *gocui.View) error { _, y := v.Cursor() y = maxInt(y-1, 0) // window is too small to set the cursor properly, ignoring the error _ = v.SetCursor(0, y) bt.selectCursor = y return nil } func (bt *bugTable) cursorClamp(v *gocui.View) error { _, y := v.Cursor() y = minInt(y, bt.getTableLength()-1) y = maxInt(y, 0) // window is too small to set the cursor properly, ignoring the error _ = v.SetCursor(0, y) bt.selectCursor = y return nil } func (bt *bugTable) nextPage(g *gocui.Gui, v *gocui.View) error { _, max := v.Size() allIds, err := bt.repo.AllBugIds() if err != nil { return err } bt.allIds = allIds if bt.pageCursor+max >= len(allIds) { return nil } bt.pageCursor += max return bt.doPaginate(allIds, max) } func (bt *bugTable) previousPage(g *gocui.Gui, v *gocui.View) error { _, max := v.Size() allIds, err := bt.repo.AllBugIds() if err != nil { return err } bt.allIds = allIds bt.pageCursor = maxInt(0, bt.pageCursor-max) return bt.doPaginate(allIds, max) } func (bt *bugTable) newBug(g *gocui.Gui, v *gocui.View) error { return newBugWithEditor(bt.repo) } func (bt *bugTable) openBug(g *gocui.Gui, v *gocui.View) error { _, y := v.Cursor() ui.showBug.bug = bt.bugs[bt.pageCursor+y] return ui.activateWindow(ui.showBug) }