create browser class

This commit is contained in:
yequari 2023-07-03 01:52:14 -07:00
parent e65d430aac
commit e7dd7a1629
1 changed files with 109 additions and 120 deletions

227
nex.py
View File

@ -12,47 +12,12 @@ logger.setLevel(logging.INFO)
logger.addHandler(logging.FileHandler('nex.log'))
class Session:
def __init__(self):
self.history = [Page('home')]
self.curr_page_idx = 0
def back(self):
if self.curr_page_idx > 0:
self.curr_page_idx -= 1
self.render()
def forward(self):
if self.curr_page_idx < len(self.history) - 1:
self.curr_page_idx += 1
self.render()
def load(self, url):
self.curr_page_idx += 1
if self.curr_page_idx >= len(self.history):
self.history.append(Page(url))
else:
self.history[self.curr_page_idx] = Page(url)
self.history[self.curr_page_idx].request()
def render(self):
return self.history[self.curr_page_idx].content
def reload(self):
self.history[self.curr_page_idx].request()
@property
def current_page(self):
return self.history[self.curr_page_idx]
def follow_link(self, link_index: int):
logger.info(link_index)
url = self.current_page.links[link_index]
if url.startswith('nex://'):
self.load(url)
else:
url = '/'.join([self.current_page.url.rstrip('/'), url])
self.load(url)
def parse_url(url: str) -> Tuple[str, str]:
clean_url = url.replace('nex://', '')
split_url = clean_url.split('/', 1)
if len(split_url) == 1:
return clean_url, ''
return split_url[0], split_url[1]
class Page:
@ -69,7 +34,7 @@ class Page:
sock.connect((self.host, PORT))
except ConnectionError as e:
logger.error(e)
self.content = f'Error connecting to {self.host}'
self.content = f'[error]Could not connect to {self.host}'
return
selector = self.selector + '\r\n'
sock.sendall(selector.encode('ascii'))
@ -83,12 +48,12 @@ class Page:
self.raw_content = buf.decode('ascii')
except UnicodeDecodeError as e:
logger.error(e)
self.content = 'Content could not be decoded'
self.content = '[warning]Content could not be decoded'
return
self.content = self.raw_content
self._parse_links()
for i, l in enumerate(self.links):
self.content = re.sub(l, f'[bold cyan]\[{i}][/] {l}',
self.content = re.sub(l, f'[bold primary]\[{i}][/] {l}',
self.content, 1)
@property
@ -98,103 +63,127 @@ class Page:
def _parse_links(self):
pattern = re.compile(r'=>\s*([\w/:\.~-]*)\s*')
self.links = pattern.findall(self.raw_content)
# Find links
# Determine if absolute or relative
# Parse out relative directory navigation
# Store parsed URLs in array
# Add numbers to page content corresponding to array index
def parse_url(url: str) -> Tuple[str, str]:
clean_url = url.replace('nex://', '')
split_url = clean_url.split('/', 1)
if len(split_url) == 1:
return clean_url, ''
return split_url[0], split_url[1]
landing_page = Page('')
landing_page.raw_content = 'Welcome to PyNex'
landing_page.content = landing_page.raw_content
class BrowserWindow(ptg.Window):
class Session:
def __init__(self):
self.pages = {'': landing_page}
self.history = ['']
self.curr_index = 0
overflow = ptg.Overflow.SCROLL
vertical_align = ptg.VerticalAlignment.TOP
@property
def current_page(self):
return self.pages[self.history[self.curr_index]]
def __init__(self, session: Session):
def prev(self):
if self.curr_index > 0:
self.curr_index -= 1
return self.current_page
def next(self):
if self.curr_index < len(self.history) - 1:
self.curr_index += 1
return self.current_page
def new_page(self, url):
self.curr_index += 1
if self.curr_index >= len(self.history):
self.history.append(url)
else:
self.history[self.curr_index] = url
page = Page(url)
page.request()
self.pages[url] = page
return self.current_page
class Browser(ptg.WindowManager):
def __init__(self, session=Session(), *args):
super().__init__()
self.layout = ptg.Layout()
self.session = session
self.set_widgets([session.render()])
def update(self) -> None:
self.set_widgets([session.render()])
self.page_container = ptg.Container(self.session.current_page.content)
self.body = ptg.Window(self.page_container,
overflow=ptg.Overflow.SCROLL,
vertical_align=ptg.VerticalAlignment.TOP)
self.footer = ptg.Window(
ptg.Splitter(
ptg.KeyboardButton("Back", self.back, bound='b'),
ptg.KeyboardButton("Forward", self.forward, bound='f'),
ptg.KeyboardButton("Reload", self.reload, bound='r'),
ptg.KeyboardButton("Quit", self.stop, bound='q')
),
box="EMPTY",
is_persistant=True
)
def window_back(self, *args):
self.session.back()
self._create_layout()
self._create_key_bindings()
self.update()
def window_forward(self, *args):
self.session.forward()
def _create_key_bindings(self):
self.bind('j', lambda *_: self.body.scroll(5))
self.bind(ptg.keys.DOWN, lambda *_: self.body.scroll(5))
self.bind('k', lambda *_: self.body.scroll(-5))
self.bind(ptg.keys.UP, lambda *_: self.body.scroll(-5))
self.bind('q', lambda *_: self.stop())
for i in range(10):
self.bind(f'{i}', lambda widget, key: self.follow_link(key))
def _create_layout(self):
self.layout.add_slot("Body")
self.layout.add_break()
self.layout.add_slot("Footer", height=1)
# self.add(self.header)
self.add(self.body)
self.add(self.footer)
def update(self):
self.page_container.set_widgets([self.session.current_page.content])
self.body.set_title(f'[bold tertiary]{self.session.current_page.title}', 1)
def back(self, *args):
self.session.prev()
self.update()
def window_reload(self, *args):
self.session.reload()
def forward(self, *args):
self.session.next()
self.update()
def follow_link(self, key: str):
def reload(self, *args):
self.session.current_page.request()
self.update()
def go(self, url):
self.session.new_page(url)
self.update()
def follow_link(self, key):
index = int(key)
self.session.follow_link(index)
url = self.session.current_page.links[index]
if url.startswith('nex://'):
self.session.new_page(url)
else:
url = '/'.join([self.session.current_page.url.rstrip('/'), url])
self.session.new_page(url)
self.update()
def _define_layout() -> ptg.Layout:
layout = ptg.Layout()
layout.add_slot("Header", height=1)
layout.add_break()
layout.add_slot("Body")
layout.add_break()
layout.add_slot("Footer", height=1)
return layout
def _create_footer(browser: BrowserWindow, manager: ptg.WindowManager):
return ptg.Window(
ptg.Splitter(
ptg.KeyboardButton("Back", browser.window_back, bound='b'),
ptg.KeyboardButton("Forward", browser.window_forward, bound='f'),
ptg.KeyboardButton("Reload", browser.window_reload, bound='r'),
ptg.KeyboardButton("Quit", lambda *_: manager.stop(), bound='q')
),
box="EMPTY",
is_persistant=True
)
def main(url=None):
with Browser() as browser:
if url is not None:
browser.go(url)
if __name__ == '__main__':
session = Session()
if len(sys.argv) > 1:
url = sys.argv[1]
if len(sys.argv) > 2 and sys.argv[2] == '--notui':
url = sys.argv[1]
session.load(url)
print(session.render())
session.follow_link(0)
print(session.render())
sys.exit(0)
session.load(url)
browser = BrowserWindow(session)
with ptg.WindowManager() as manager:
manager.layout = _define_layout()
header = ptg.Window(f"[bold accent]{session.current_page.title}",
box="EMPTY",
is_persistant=True)
manager.add(header)
manager.add(browser, assign='body')
manager.add(_create_footer(browser, manager), assign='footer')
manager.bind('j', lambda *_: browser.scroll(5))
manager.bind(ptg.keys.DOWN, lambda *_: browser.scroll(5))
manager.bind('k', lambda *_: browser.scroll(-5))
manager.bind(ptg.keys.UP, lambda *_: browser.scroll(-5))
manager.bind('q', lambda *_: manager.stop())
for i in range(10):
manager.bind(f'{i}', lambda widget, key: browser.follow_link(key))
logger.info(manager.bindings)
main(url)