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page: split page/page_pad modules

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Also add title to Page but really this needs a big cleanup.
exec
dece 3 years ago
parent 40133a1e6b
commit d6bcd1f706
3 changed files with 116 additions and 102 deletions
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8
bebop/browser.py
Unescape View File

@ -13,7 +13,8 @@ from bebop.history import History
from bebop.links import Links
from bebop.mouse import ButtonState
from bebop.navigation import *
from bebop.page import Page, PagePad
from bebop.page import Page
from bebop.page_pad import PagePad
from bebop.protocol import Request, Response
@ -208,7 +209,8 @@ class Browser:
if command in ("o", "open"):
self.open_url(words[1], assume_absolute=True)
def open_url(self, url, base_url=None, redirects=0, assume_absolute=False):
def open_url(self, url, base_url=None, redirects=0, assume_absolute=False,
history=True, use_cache=True):
"""Try to open an URL.
This function assumes that the URL can be from an user and thus tries a
@ -223,6 +225,8 @@ class Browser:
- base_url: an URL string to use as base in case `url` is relative.
- redirections: number of redirections we did yet for the same request.
- assume_absolute: assume we intended to use an absolute URL if True.
- history: whether the URL should be pushed to history on success.
- use_cache: whether we should look for an already cached document.
"""
if redirects > 5:
self.set_status_error(f"Too many redirections ({url}).")

110
bebop/page.py
Unescape View File

@ -1,11 +1,8 @@
"""Single Gemini page curses management."""
import curses
from dataclasses import dataclass, field
from bebop.gemtext import parse_gemtext
from bebop.gemtext import parse_gemtext, Title
from bebop.rendering import generate_metalines
from bebop.links import Links
from bebop.rendering import generate_metalines, render_lines
@dataclass
@ -13,6 +10,7 @@ class Page:
"""Page-related data."""
metalines: list = field(default_factory=list)
links: Links = field(default_factory=Links)
title: str = ""
@staticmethod
def from_gemtext(gemtext: str):
@ -20,98 +18,10 @@ class Page:
elements = parse_gemtext(gemtext)
metalines = generate_metalines(elements, 80)
links = Links.from_metalines(metalines)
return Page(metalines, links)
class PagePad:
"""Window containing page content."""
MAX_COLS = 1000
def __init__(self, initial_num_lines):
self.dim = (initial_num_lines, PagePad.MAX_COLS)
self.pad = curses.newpad(*self.dim)
self.pad.scrollok(True)
self.pad.idlok(True)
self.current_line = 0
self.current_column = 0
self.current_page = None
def show_page(self, page: Page):
"""Render Gemtext data in the content pad."""
self.current_page = page
self.pad.clear()
self.dim = render_lines(page.metalines, self.pad, PagePad.MAX_COLS)
self.current_line = 0
self.current_column = 0
def refresh_content(self, x, y):
"""Refresh content pad's view using the current line/column."""
if x <= 0 or y <= 0:
return
content_position = self.current_line, self.current_column
self.pad.refresh(*content_position, 0, 0, x, y)
def scroll_v(self, num_lines: int, window_height: int =0):
"""Make the content pad scroll up and down by num_lines.
Arguments:
- num_lines: amount of lines to scroll, can be negative to scroll up.
- window_height: total window height, used to limit scrolling down.
Returns:
True if scrolling occured and the pad has to be refreshed.
"""
if num_lines < 0:
num_lines = -num_lines
min_line = 0
if self.current_line > min_line:
self.current_line = max(self.current_line - num_lines, min_line)
return True
else:
max_line = self.dim[0] - window_height
if self.current_line < max_line:
self.current_line = min(self.current_line + num_lines, max_line)
return True
return False
def scroll_h(self, num_columns: int, window_width: int =0):
"""Make the content pad scroll left and right by num_columns.
Arguments:
- num_columns: amount of columns to scroll, can be negative to scroll
left.
- window_width: total window width, used to limit scrolling right.
Returns:
True if scrolling occured and the pad has to be refreshed.
"""
if num_columns < 0:
num_columns = -num_columns
min_column = 0
if self.current_column > min_column:
new_column = self.current_column - num_columns
self.current_column = max(new_column, min_column)
return True
else:
max_column = self.dim[1] - window_width
if self.current_column < max_column:
new_column = self.current_column + num_columns
self.current_column = min(new_column, max_column)
return True
return False
def go_to_beginning(self):
"""Make the pad show its start; return True if a refresh is needed."""
if self.current_line:
self.current_line = 0
return True
return False
def go_to_end(self, window_height):
"""Make the pad show its bottom; return True if a refresh is needed."""
max_line = self.dim[0] - window_height
if self.current_line != max_line:
self.current_line = max_line
return True
return False
# TODO this is horrible; merge parsing with page generation directly
title = ""
for element in elements:
if isinstance(element, Title) and element.level == 1:
title = element.text
break
return Page(metalines, links, title)

100
bebop/page_pad.py
Unescape View File

@ -0,0 +1,100 @@
"""Single Gemini page curses management."""
import curses
from bebop.page import Page
from bebop.rendering import render_lines
class PagePad:
"""Window containing page content."""
MAX_COLS = 1000
def __init__(self, initial_num_lines):
self.dim = (initial_num_lines, PagePad.MAX_COLS)
self.pad = curses.newpad(*self.dim)
self.pad.scrollok(True)
self.pad.idlok(True)
self.current_line = 0
self.current_column = 0
self.current_page = None
def show_page(self, page: Page):
"""Render Gemtext data in the content pad."""
self.current_page = page
self.pad.clear()
self.dim = render_lines(page.metalines, self.pad, PagePad.MAX_COLS)
self.current_line = 0
self.current_column = 0
def refresh_content(self, x, y):
"""Refresh content pad's view using the current line/column."""
if x <= 0 or y <= 0:
return
content_position = self.current_line, self.current_column
self.pad.refresh(*content_position, 0, 0, x, y)
def scroll_v(self, num_lines: int, window_height: int =0):
"""Make the content pad scroll up and down by num_lines.
Arguments:
- num_lines: amount of lines to scroll, can be negative to scroll up.
- window_height: total window height, used to limit scrolling down.
Returns:
True if scrolling occured and the pad has to be refreshed.
"""
if num_lines < 0:
num_lines = -num_lines
min_line = 0
if self.current_line > min_line:
self.current_line = max(self.current_line - num_lines, min_line)
return True
else:
max_line = self.dim[0] - window_height
if self.current_line < max_line:
self.current_line = min(self.current_line + num_lines, max_line)
return True
return False
def scroll_h(self, num_columns: int, window_width: int =0):
"""Make the content pad scroll left and right by num_columns.
Arguments:
- num_columns: amount of columns to scroll, can be negative to scroll
left.
- window_width: total window width, used to limit scrolling right.
Returns:
True if scrolling occured and the pad has to be refreshed.
"""
if num_columns < 0:
num_columns = -num_columns
min_column = 0
if self.current_column > min_column:
new_column = self.current_column - num_columns
self.current_column = max(new_column, min_column)
return True
else:
max_column = self.dim[1] - window_width
if self.current_column < max_column:
new_column = self.current_column + num_columns
self.current_column = min(new_column, max_column)
return True
return False
def go_to_beginning(self):
"""Make the pad show its start; return True if a refresh is needed."""
if self.current_line:
self.current_line = 0
return True
return False
def go_to_end(self, window_height):
"""Make the pad show its bottom; return True if a refresh is needed."""
max_line = self.dim[0] - window_height
if self.current_line != max_line:
self.current_line = max_line
return True
return False
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