forked from andrewstuart/hn
/
cli.go
154 lines (132 loc) · 2.4 KB
/
cli.go
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package main
import (
"fmt"
"os/exec"
"strconv"
)
var input string = ""
func storyTime() {
cli.SetContent(getStories(pageNum))
cli.SetKeyHandler(storyHandler)
cli.SetHelp("(n: next, p: previous, <num>c: view comments, <num>o: open in browser, q: quit) ")
}
func storyHandler(ch string) {
switch ch {
case "c":
if num, err := strconv.Atoi(input); err == nil {
if num < 1 {
break
}
for num-1 > len(p.Articles) {
p.GetNext()
}
text := p.Articles[num-1].PrintComments()
commentTime(text)
input = ""
} else {
cli.Alert("Please enter a number to select a comment")
}
input = ""
break
case "o":
if num, err := strconv.Atoi(input); err == nil {
for num-1 > len(p.Articles) {
p.GetNext()
}
viewInBrowser := exec.Command("xdg-open", p.Articles[num-1].Url)
viewInBrowser.Start()
} else {
cli.Alert("Please enter a number to view an article")
}
input = ""
break
case "q":
cli.Quit()
break
case "n":
//Go forward 1 page
pageNum += 1
cli.SetContent(getStories(pageNum))
input = ""
break
case "p":
//Go back 1 page, unless page < 0
if pageNum > 0 {
pageNum -= 1
}
cli.SetContent(getStories(pageNum))
break
case "enter":
cli.Refresh()
break
case "backspace":
if len(input) > 0 {
input = input[:len(input)-1]
cli.DelChar()
} else {
cli.DelChar()
}
break
default:
input += ch
break
}
}
func commentTime(text string) {
cli.SetContent(text)
cli.ResetScroll()
cli.SetHelp("(d/u scroll 30 lines; j/k: scroll 1 line; n/p scroll 1 page; q: quit to story view)")
cli.SetKeyHandler(commentHandler)
}
func commentHandler(input string) {
switch input {
case "d":
cli.Scroll(30)
break
case "u":
cli.Scroll(-30)
break
case "j":
cli.Scroll(1)
break
case "k":
cli.Scroll(-1)
break
case "g":
cli.ResetScroll()
break
case "n":
cli.Scroll(cli.Height)
break
case "p":
cli.Scroll(-cli.Height)
break
case "q":
storyTime()
break
}
}
var cli hncli
var p *PageCache
var stories string
func getStories(pageNum int) string {
h := cli.Height
start = h * pageNum
end = start + h
for end > len(p.Articles) {
p.GetNext()
}
str := ""
for i, ar := range p.Articles[start:end] {
str += fmt.Sprintf("%4d.\t(%d)\t%s\n", start+i+1, ar.Karma, ar.Title)
}
return str
}
var pageNum, start, end int
func runCli() {
pageNum = 0
cli = GetCli()
p = NewPageCache()
storyTime()
cli.Run()
}