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import urwid
import yaml
from concurrent.futures import ThreadPoolExecutor
from API import Fetcher
from Render import Article
class LeftPane(urwid.ListBox):
def __init__(self, categories):
super().__init__(self)
items = [urwid.AttrMap(urwid.Columns([(5, urwid.Text(str(category["count"]))), urwid.Text(category["name"])]),
(category["id"], category["count"]), "reveal focus") for category in categories]
walker = urwid.SimpleListWalker(items)
self.body = walker
self.categoryPosition = 0
self.isCategoryView = True
self.currentCategory = ""
focus_widget, idx = self.get_focus()
if self.isCategoryView:
self.currentCategory = focus_widget.attr_map[None][0]
def getArticlesFromCategory(self, category, number):
tui.fetcher.articlesFromCategory(category[13:], str(number))
articles = tui.fetcher.articles[category[13:]]
return articles
def getArticlesFromFeed(self, feed):
return tui.fetcher.articlesFromFeed(feed, self.currentCategory[13:])
def getArticles(self, attrMap):
if self.isCategoryView:
itemId = attrMap[0]
number = attrMap[1]
tui.fetcher.articlesFromCategory(itemId[13:], str(number))
return tui.fetcher.articles[itemId[13:]]
else:
itemId = attrMap
return tui.fetcher.articlesFromFeed(itemId, self.currentCategory[13:])
def keypress(self, size, key):
if key in ("j", "down"):
item_size = len(self.body)
focus_widget, idx = self.get_focus()
if idx < item_size - 1:
idx = idx + 1
self.set_focus(idx)
focus_widget, idx = self.get_focus()
if self.isCategoryView:
self.currentCategory = focus_widget.attr_map[None][0]
tui.articles = self.getArticles(focus_widget.attr_map[None])
tui.articleView.fill(tui.articles)
return
elif key in ("k", "up"):
focus_widget, idx = self.get_focus()
if idx > 0:
idx = idx - 1
self.set_focus(idx)
focus_widget, idx = self.get_focus()
if self.isCategoryView:
self.currentCategory = focus_widget.attr_map[None][0]
tui.articles = self.getArticles(focus_widget.attr_map[None])
tui.articleView.fill(tui.articles)
return
elif key in ("l", "right"):
if self.isCategoryView:
self.isCategoryView = False
focus_widget, idx = self.get_focus()
self.categoryPosition = idx
categoryId = focus_widget.attr_map[None][0]
feeds = tui.fetcher.feedsFromCategory(categoryId)
feedItems = [urwid.AttrMap(urwid.Columns([(5, urwid.Text(str(tui.fetcher.unreadCounts[feed["id"]][0]))),
urwid.Text(feed["title"])]), feed["id"], "reveal focus") for feed in feeds]
walker = urwid.SimpleListWalker(feedItems)
self.body = walker
tui.leftBox.set_title(categoryId[13:])
focus_widget, idx = self.get_focus()
if self.isCategoryView:
self.currentCategory = focus_widget.attr_map[None][0]
tui.articles = self.getArticles(focus_widget.attr_map[None])
tui.articleView.fill(tui.articles)
return
elif key in ("h", "left"):
if not self.isCategoryView:
self.isCategoryView = True
items = [urwid.AttrMap(urwid.Columns([(5, urwid.Text(str(category["count"]))), urwid.Text(category["name"])]),
(category["id"], category["count"]), "reveal focus") for category in tui.fetcher.categories]
walker = urwid.SimpleFocusListWalker(items)
self.body = walker
tui.leftBox.set_title("Categories")
self.set_focus(self.categoryPosition)
focus_widget, idx = self.get_focus()
tui.articles = self.getArticles(focus_widget.attr_map[None])
tui.articleView.fill(tui.articles)
return
return super().keypress(size, key)
class RightPane(urwid.ListBox):
def __init__(self, items):
super().__init__(self)
walker = urwid.SimpleListWalker([])
self.body = walker
self.isList = True
self.articlePosition = 0
self.article = None
self.chunkNumber = 0
def fill(self, articles):
items = [urwid.AttrMap(urwid.Columns([(2, urwid.Text("N")), urwid.Text(article["title"])]),
article["id"], "reveal focus") for article in articles]
walker = urwid.SimpleListWalker(items)
self.body = walker
def getArticle(self, articleId):
article = [item for item in tui.fetcher.articles[tui.feedView.currentCategory[13:]] if item["id"] == articleId][0]
return article
def setArticleTitle(self):
tui.rightBox.set_title(self.article.title + " (" + str(self.article.currentPageNumber) + "/" +
str(self.article.numberOfPages) + ")")
def keypress(self, size, key):
if key in ("j", "down"):
if not self.isList:
walker = urwid.SimpleListWalker([urwid.Text(self.article.scrollDown())])
self.body = walker
self.setArticleTitle()
item_size = len(self.body)
focus_widget, idx = self.get_focus()
if idx < item_size - 1:
idx = idx + 1
self.set_focus(idx)
return
elif key in ("k", "up"):
if not self.isList:
walker = urwid.SimpleListWalker([urwid.Text(self.article.scrollUp())])
self.body = walker
self.setArticleTitle()
focus_widget, idx = self.get_focus()
if idx > 0:
idx = idx - 1
self.set_focus(idx)
return
elif key in ("l", "right"):
if self.isList is True:
self.isList = False
self.chunkNumber = 0
focus_widget, idx = self.get_focus()
self.articlePosition = idx
articleId = focus_widget.attr_map[None]
self.article = Article(self.getArticle(articleId))
walker = urwid.SimpleListWalker([urwid.Text(self.article.firstPage)])
self.body = walker
self.setArticleTitle()
return
elif key in ("h", "left"):
if self.isList is False:
self.isList = True
self.fill(tui.articles)
tui.rightBox.set_title("Articles")
self.set_focus(self.articlePosition)
return
return super().keypress(size, key)
class TUI(urwid.Frame):
@classmethod
def create(cls):
tui = cls()
palette = [("text", "dark cyan", "dark cyan"), ('header', 'white', 'black'), ('reveal focus', 'black', 'dark cyan', 'standout')]
loop = urwid.MainLoop(
tui,
palette,
event_loop=urwid.AsyncioEventLoop(),
unhandled_input=tui.unhandled_input,
)
tui.loop = loop
return tui
def __init__(self):
with open('config.yml', 'r') as file:
config = yaml.safe_load(file)
URL = config["server"]["URL"]
token = config["server"]["token"]
self.fetcher = Fetcher(URL, token)
self.leftPaneItems = {}
self.activePane = False
self.executor = ThreadPoolExecutor(max_workers=1)
self.loop = None
self.feedView = LeftPane(self.fetcher.categories)
self.articleView = RightPane([])
self.leftBox = urwid.LineBox(self.feedView, title="Categories")
self.rightBox = urwid.LineBox(self.articleView, title="Articles")
self.container = urwid.Columns(
[(40, self.leftBox), self.rightBox])
self.body = self.container
self.articles = []
super().__init__(self.body)
def run(self):
focus_widget, idx = self.feedView.get_focus()
item = focus_widget.attr_map[None][0][13:]
self.fetcher.articlesFromCategory(item, str(focus_widget.attr_map[None][1]))
self.articles = tui.fetcher.articles[item]
self.articleView.fill(self.articles)
self.loop.run()
self.executor.shutdown(wait=False)
def unhandled_input(self, key):
if key == "tab":
self.activePane = not self.activePane
self.container.set_focus(int(self.activePane))
elif key == "q":
raise urwid.ExitMainLoop()
elif key == "r":
olb = urwid.ListBox(urwid.SimpleListWalker([urwid.Text("")]))
overlay = urwid.Overlay(
urwid.LineBox(olb),
self.body, align="center", width=("relative", 50), valign="middle", height=3)
self.body = overlay
articles = tui.fetcher.fetch()
for text in articles:
olb.body = urwid.SimpleListWalker([urwid.Text(text)])
tui.loop.entering_idle()
self.body = overlay.bottom_w
focus_widget, idx = self.feedView.get_focus()
itemId = focus_widget.attr_map[None][0]
self.articles = tui.fetcher.articles[itemId[13:]]
self.articleView.fill(self.articles)
tui = TUI.create()
tui.run()