mirror of
https://github.com/MichaelMure/git-bug.git
synced 2024-12-14 17:51:44 +03:00
478 lines
9.9 KiB
Go
478 lines
9.9 KiB
Go
package termui
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import (
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"bytes"
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"fmt"
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"strings"
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"github.com/MichaelMure/git-bug/bug/operations"
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"github.com/MichaelMure/git-bug/cache"
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"github.com/MichaelMure/git-bug/util"
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"github.com/jroimartin/gocui"
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)
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const showBugView = "showBugView"
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const showBugSidebarView = "showBugSidebarView"
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const showBugInstructionView = "showBugInstructionView"
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const showBugHeaderView = "showBugHeaderView"
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const timeLayout = "Jan 2 2006"
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type showBug struct {
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cache cache.RepoCacher
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bug cache.BugCacher
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childViews []string
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selectableView []string
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selected string
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scroll int
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}
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func newShowBug(cache cache.RepoCacher) *showBug {
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return &showBug{
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cache: cache,
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}
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}
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func (sb *showBug) SetBug(bug cache.BugCacher) {
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sb.bug = bug
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sb.scroll = 0
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}
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func (sb *showBug) layout(g *gocui.Gui) error {
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maxX, maxY := g.Size()
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v, err := g.SetView(showBugView, 0, 0, maxX*2/3, maxY-2)
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if err != nil {
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if err != gocui.ErrUnknownView {
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return err
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}
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sb.childViews = append(sb.childViews, showBugView)
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v.Frame = false
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}
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v.Clear()
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err = sb.renderMain(g, v)
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if err != nil {
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return err
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}
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v, err = g.SetView(showBugSidebarView, maxX*2/3+1, 0, maxX-1, maxY-2)
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if err != nil {
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if err != gocui.ErrUnknownView {
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return err
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}
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sb.childViews = append(sb.childViews, showBugSidebarView)
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v.Frame = true
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}
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v.Clear()
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sb.renderSidebar(v)
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v, err = g.SetView(showBugInstructionView, -1, maxY-2, maxX, maxY)
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if err != nil {
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if err != gocui.ErrUnknownView {
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return err
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}
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sb.childViews = append(sb.childViews, showBugInstructionView)
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v.Frame = false
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v.BgColor = gocui.ColorBlue
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fmt.Fprintf(v, "[q] Save and return [c] Comment [t] Change title [↓,j] Down [↑,k] Up")
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}
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_, err = g.SetCurrentView(showBugView)
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return err
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}
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func (sb *showBug) keybindings(g *gocui.Gui) error {
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// Return
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if err := g.SetKeybinding(showBugView, 'q', gocui.ModNone, sb.saveAndBack); err != nil {
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return err
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}
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// Scrolling
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if err := g.SetKeybinding(showBugView, gocui.KeyPgup, gocui.ModNone,
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sb.scrollUp); err != nil {
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return err
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}
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if err := g.SetKeybinding(showBugView, gocui.KeyPgdn, gocui.ModNone,
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sb.scrollDown); err != nil {
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return err
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}
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// Down
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if err := g.SetKeybinding(showBugView, 'j', gocui.ModNone,
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sb.selectNext); err != nil {
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return err
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}
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if err := g.SetKeybinding(showBugView, gocui.KeyArrowDown, gocui.ModNone,
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sb.selectNext); err != nil {
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return err
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}
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// Up
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if err := g.SetKeybinding(showBugView, 'k', gocui.ModNone,
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sb.selectPrevious); err != nil {
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return err
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}
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if err := g.SetKeybinding(showBugView, gocui.KeyArrowUp, gocui.ModNone,
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sb.selectPrevious); err != nil {
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return err
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}
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// Comment
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if err := g.SetKeybinding(showBugView, 'c', gocui.ModNone,
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sb.comment); err != nil {
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return err
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}
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// Title
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if err := g.SetKeybinding(showBugView, 't', gocui.ModNone,
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sb.setTitle); err != nil {
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return err
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}
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// Labels
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return nil
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}
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func (sb *showBug) disable(g *gocui.Gui) error {
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for _, view := range sb.childViews {
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if err := g.DeleteView(view); err != nil {
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return err
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}
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}
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return nil
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}
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func (sb *showBug) renderMain(g *gocui.Gui, mainView *gocui.View) error {
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maxX, _ := mainView.Size()
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x0, y0, _, _, _ := g.ViewPosition(mainView.Name())
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y0 -= sb.scroll
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snap := sb.bug.Snapshot()
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sb.childViews = nil
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sb.selectableView = nil
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bugHeader := fmt.Sprintf("[ %s ] %s\n\n[ %s ] %s opened this bug on %s",
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util.Cyan(snap.HumanId()),
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util.Bold(snap.Title),
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util.Yellow(snap.Status),
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util.Magenta(snap.Author.Name),
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snap.CreatedAt.Format(timeLayout),
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)
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bugHeader, lines := util.TextWrap(bugHeader, maxX)
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v, err := sb.createOpView(g, showBugHeaderView, x0, y0, maxX+1, lines, false)
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if err != nil {
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return err
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}
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fmt.Fprint(v, bugHeader)
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y0 += lines + 1
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for i, op := range snap.Operations {
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viewName := fmt.Sprintf("op%d", i)
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// TODO: me might skip the rendering of blocks that are outside of the view
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// but to do that we need to rework how sb.selectableView is maintained
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switch op.(type) {
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case operations.CreateOperation:
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create := op.(operations.CreateOperation)
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content, lines := util.TextWrapPadded(create.Message, maxX, 4)
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v, err := sb.createOpView(g, viewName, x0, y0, maxX+1, lines, true)
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if err != nil {
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return err
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}
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fmt.Fprint(v, content)
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y0 += lines + 2
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case operations.AddCommentOperation:
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comment := op.(operations.AddCommentOperation)
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message, _ := util.TextWrapPadded(comment.Message, maxX, 4)
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content := fmt.Sprintf("%s commented on %s\n\n%s",
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util.Magenta(comment.Author.Name),
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comment.Time().Format(timeLayout),
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message,
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)
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content, lines = util.TextWrap(content, maxX)
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v, err := sb.createOpView(g, viewName, x0, y0, maxX+1, lines, true)
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if err != nil {
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return err
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}
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fmt.Fprint(v, content)
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y0 += lines + 2
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case operations.SetTitleOperation:
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setTitle := op.(operations.SetTitleOperation)
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content := fmt.Sprintf("%s changed the title to %s on %s",
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util.Magenta(setTitle.Author.Name),
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util.Bold(setTitle.Title),
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setTitle.Time().Format(timeLayout),
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)
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content, lines := util.TextWrap(content, maxX)
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v, err := sb.createOpView(g, viewName, x0, y0, maxX+1, lines, true)
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if err != nil {
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return err
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}
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fmt.Fprint(v, content)
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y0 += lines + 2
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case operations.SetStatusOperation:
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setStatus := op.(operations.SetStatusOperation)
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content := fmt.Sprintf("%s %s the bug on %s",
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util.Magenta(setStatus.Author.Name),
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util.Bold(setStatus.Status.Action()),
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setStatus.Time().Format(timeLayout),
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)
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content, lines := util.TextWrap(content, maxX)
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v, err := sb.createOpView(g, viewName, x0, y0, maxX+1, lines, true)
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if err != nil {
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return err
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}
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fmt.Fprint(v, content)
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y0 += lines + 2
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case operations.LabelChangeOperation:
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labelChange := op.(operations.LabelChangeOperation)
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var added []string
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for _, label := range labelChange.Added {
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added = append(added, util.Bold("\""+label+"\""))
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}
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var removed []string
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for _, label := range labelChange.Removed {
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removed = append(removed, util.Bold("\""+label+"\""))
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}
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var action bytes.Buffer
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if len(added) > 0 {
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action.WriteString("added ")
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action.WriteString(strings.Join(added, " "))
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if len(removed) > 0 {
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action.WriteString(" and ")
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}
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}
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if len(removed) > 0 {
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action.WriteString("removed ")
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action.WriteString(strings.Join(removed, " "))
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}
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if len(added)+len(removed) > 1 {
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action.WriteString(" labels")
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} else {
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action.WriteString(" label")
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}
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content := fmt.Sprintf("%s %s on %s",
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util.Magenta(labelChange.Author.Name),
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action.String(),
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labelChange.Time().Format(timeLayout),
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)
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content, lines := util.TextWrap(content, maxX)
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v, err := sb.createOpView(g, viewName, x0, y0, maxX+1, lines, true)
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if err != nil {
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return err
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}
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fmt.Fprint(v, content)
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y0 += lines + 2
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}
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}
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return nil
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}
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func (sb *showBug) createOpView(g *gocui.Gui, name string, x0 int, y0 int, maxX int, height int, selectable bool) (*gocui.View, error) {
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v, err := g.SetView(name, x0, y0, maxX, y0+height+1)
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if err != nil && err != gocui.ErrUnknownView {
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return nil, err
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}
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sb.childViews = append(sb.childViews, name)
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if selectable {
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sb.selectableView = append(sb.selectableView, name)
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}
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v.Frame = sb.selected == name
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v.Clear()
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return v, nil
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}
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func (sb *showBug) renderSidebar(v *gocui.View) {
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maxX, _ := v.Size()
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snap := sb.bug.Snapshot()
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title := util.LeftPaddedString("LABEL", maxX, 2)
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fmt.Fprintf(v, title+"\n\n")
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for _, label := range snap.Labels {
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fmt.Fprintf(v, util.LeftPaddedString(label.String(), maxX, 2))
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fmt.Fprintln(v)
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}
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}
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func (sb *showBug) saveAndBack(g *gocui.Gui, v *gocui.View) error {
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err := sb.bug.CommitAsNeeded()
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if err != nil {
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return err
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}
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ui.activateWindow(ui.bugTable)
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return nil
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}
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func (sb *showBug) scrollUp(g *gocui.Gui, v *gocui.View) error {
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mainView, err := g.View(showBugView)
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if err != nil {
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return err
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}
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_, maxY := mainView.Size()
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sb.scroll -= maxY / 2
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sb.scroll = maxInt(sb.scroll, 0)
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return nil
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}
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func (sb *showBug) scrollDown(g *gocui.Gui, v *gocui.View) error {
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_, maxY := v.Size()
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lastViewName := sb.childViews[len(sb.childViews)-1]
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lastView, err := g.View(lastViewName)
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if err != nil {
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return err
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}
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_, vMaxY := lastView.Size()
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_, vy0, _, _, err := g.ViewPosition(lastViewName)
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if err != nil {
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return err
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}
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maxScroll := vy0 + sb.scroll + vMaxY - maxY
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sb.scroll += maxY / 2
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sb.scroll = minInt(sb.scroll, maxScroll)
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return nil
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}
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func (sb *showBug) selectPrevious(g *gocui.Gui, v *gocui.View) error {
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if len(sb.selectableView) == 0 {
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return nil
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}
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defer sb.focusView(g)
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for i, name := range sb.selectableView {
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if name == sb.selected {
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// special case to scroll up to the top
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if i == 0 {
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sb.scroll = 0
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}
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sb.selected = sb.selectableView[maxInt(i-1, 0)]
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return nil
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}
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}
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if sb.selected == "" {
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sb.selected = sb.selectableView[0]
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}
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return nil
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}
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func (sb *showBug) selectNext(g *gocui.Gui, v *gocui.View) error {
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if len(sb.selectableView) == 0 {
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return nil
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}
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defer sb.focusView(g)
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for i, name := range sb.selectableView {
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if name == sb.selected {
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sb.selected = sb.selectableView[minInt(i+1, len(sb.selectableView)-1)]
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return nil
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}
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}
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if sb.selected == "" {
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sb.selected = sb.selectableView[0]
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}
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return nil
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}
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func (sb *showBug) focusView(g *gocui.Gui) error {
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mainView, err := g.View(showBugView)
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if err != nil {
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return err
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}
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_, maxY := mainView.Size()
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_, vy0, _, _, err := g.ViewPosition(sb.selected)
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if err != nil {
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return err
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}
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v, err := g.View(sb.selected)
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if err != nil {
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return err
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}
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_, vMaxY := v.Size()
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vy1 := vy0 + vMaxY
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if vy0 < 0 {
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sb.scroll += vy0
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return nil
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}
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if vy1 > maxY {
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sb.scroll -= maxY - vy1
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}
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return nil
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}
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func (sb *showBug) comment(g *gocui.Gui, v *gocui.View) error {
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return addCommentWithEditor(sb.bug)
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}
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func (sb *showBug) setTitle(g *gocui.Gui, v *gocui.View) error {
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return setTitleWithEditor(sb.bug)
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}
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