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wtf/modules/hackernews/widget.go
Sean Smith 7f3daaac59 Have keyboard widget manage its own help
Define help with keys
This means that keys and help are automatically in sync
This means that you can't define keys, but forget help
This unfortunately also means that formatting may not be quite as good
2019-05-11 12:15:52 -04:00

116 lines
2.4 KiB
Go

package hackernews
import (
"fmt"
"net/url"
"strings"
"github.com/rivo/tview"
"github.com/wtfutil/wtf/wtf"
)
type Widget struct {
wtf.KeyboardWidget
wtf.ScrollableWidget
stories []Story
settings *Settings
}
func NewWidget(app *tview.Application, pages *tview.Pages, settings *Settings) *Widget {
widget := Widget{
KeyboardWidget: wtf.NewKeyboardWidget(app, pages, settings.common),
ScrollableWidget: wtf.NewScrollableWidget(app, settings.common, true),
settings: settings,
}
widget.SetRenderFunction(widget.Render)
widget.initializeKeyboardControls()
widget.View.SetInputCapture(widget.InputCapture)
widget.KeyboardWidget.SetView(widget.View)
return &widget
}
/* -------------------- Exported Functions -------------------- */
func (widget *Widget) Refresh() {
if widget.Disabled() {
return
}
storyIds, err := GetStories(widget.settings.storyType)
if storyIds == nil {
return
}
if err != nil {
widget.Redraw(widget.CommonSettings.Title, err.Error(), true)
return
}
var stories []Story
for idx := 0; idx < widget.settings.numberOfStories; idx++ {
story, e := GetStory(storyIds[idx])
if e != nil {
// panic(e)
} else {
stories = append(stories, story)
}
}
widget.stories = stories
widget.SetItemCount(len(stories))
widget.Render()
}
/* -------------------- Unexported Functions -------------------- */
func (widget *Widget) Render() {
if widget.stories == nil {
return
}
title := fmt.Sprintf("%s - %sstories", widget.CommonSettings.Title, widget.settings.storyType)
widget.Redraw(title, widget.contentFrom(widget.stories), false)
}
func (widget *Widget) contentFrom(stories []Story) string {
var str string
for idx, story := range stories {
u, _ := url.Parse(story.URL)
str = str + fmt.Sprintf(
`["%d"][""][%s]%2d. %s [lightblue](%s)[white][""]`,
idx,
widget.RowColor(idx),
idx+1,
story.Title,
strings.TrimPrefix(u.Host, "www."),
)
str = str + "\n"
}
return str
}
func (widget *Widget) openStory() {
sel := widget.GetSelected()
if sel >= 0 && widget.stories != nil && sel < len(widget.stories) {
story := &widget.stories[sel]
wtf.OpenFile(story.URL)
}
}
func (widget *Widget) openComments() {
sel := widget.GetSelected()
if sel >= 0 && widget.stories != nil && sel < len(widget.stories) {
story := &widget.stories[sel]
wtf.OpenFile(fmt.Sprintf("https://news.ycombinator.com/item?id=%d", story.ID))
}
}