Extract status list window
This commit is contained in:
Ivan Habunek
parent
554618db4b
commit
e204722425
215
toot/ui/app.py
215
toot/ui/app.py
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@ -64,10 +64,98 @@ class FooterWindow:
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self.window.refresh()
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def clear_message(self):
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self.window.addstr(0, 0, " " * self.width)
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self.window.addstr(1, 0, "".ljust(self.width - 1))
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self.window.refresh()
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class StatusListWindow:
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"""Window which shows the scrollable list of statuses (left side)."""
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def __init__(self, height, width, top, left):
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# Dimensions and position of region in stdscr which will contain the pad
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self.region_height = height
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self.region_width = width
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self.region_top = top
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self.region_left = left
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# How many statuses fit on one page (excluding border, at 3 lines per status)
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self.page_size = (height - 2) // 3
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# Initially, size the pad to the dimensions of the region, will be
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# increased later to accomodate statuses
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self.pad = curses.newpad(10, width)
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self.pad.box()
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self.scroll_pos = 0
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def draw_statuses(self, statuses, selected, starting=0):
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# Resize window to accomodate statuses if required
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height, width = self.pad.getmaxyx()
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new_height = len(statuses) * 3 + 1
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if new_height > height:
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self.pad.resize(new_height, width)
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self.pad.box()
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last_idx = len(statuses) - 1
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for index, status in enumerate(statuses):
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if index >= starting:
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highlight = selected == index
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draw_divider = index < last_idx
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self.draw_status_row(status, index, highlight, draw_divider)
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def draw_status_row(self, status, index, highlight=False, draw_divider=True):
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offset = 3 * index
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height, width = self.pad.getmaxyx()
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color = Color.GREEN if highlight else Color.WHITE
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date, time = status['created_at']
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self.pad.addstr(offset + 1, 1, " " + date.ljust(14), color)
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self.pad.addstr(offset + 2, 1, " " + time.ljust(14), color)
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trunc_width = width - 15
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acct = trunc(status['account']['acct'], trunc_width).ljust(trunc_width)
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display_name = trunc(status['account']['display_name'], trunc_width).ljust(trunc_width)
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self.pad.addstr(offset + 1, 14, display_name, color)
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self.pad.addstr(offset + 2, 14, acct, color)
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if draw_divider:
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draw_horizontal_divider(self.pad, offset + 3)
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self.refresh()
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def refresh(self):
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self.pad.refresh(
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self.scroll_pos * 3, # top
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0, # left
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self.region_top,
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self.region_left,
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self.region_height,
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self.region_width,
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)
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def scroll_to(self, index):
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self.scroll_pos = index
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self.refresh()
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def scroll_up(self):
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if self.scroll_pos > 0:
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self.scroll_to(self.scroll_pos - 1)
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def scroll_down(self):
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self.scroll_to(self.scroll_pos + 1)
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def scroll_if_required(self, new_index):
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if new_index < self.scroll_pos:
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self.scroll_up()
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elif new_index >= self.scroll_pos + self.page_size:
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self.scroll_down()
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else:
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self.refresh()
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class StatusDetailWindow:
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"""Window which shows details of a status (right side)"""
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def __init__(self, height, width, y, x):
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@ -110,6 +198,9 @@ class StatusDetailWindow:
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self.window.erase()
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self.window.box()
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if not status:
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return
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content = self.content_lines(status)
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footer = self.footer_lines(status)
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@ -120,14 +211,11 @@ class StatusDetailWindow:
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self.window.refresh()
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class TimelineApp:
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def __init__(self, status_generator):
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self.status_generator = status_generator
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self.statuses = []
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self.selected = None
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self.stdscr = None
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self.scroll_pos = 0
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def run(self):
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curses.wrapper(self._wrapped_run)
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@ -135,8 +223,8 @@ class TimelineApp:
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def _wrapped_run(self, stdscr):
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self.stdscr = stdscr
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self.setup_windows()
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Color.setup_palette()
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self.setup_windows()
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# Load some data and redraw
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self.fetch_next()
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@ -151,17 +239,17 @@ class TimelineApp:
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if screen_width < 60:
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raise ConsoleError("Terminal screen is too narrow, toot curses requires at least 60 columns to display properly.")
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self.left_width = max(min(screen_width // 3, 60), 30)
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self.right_width = screen_width - self.left_width
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left_width = max(min(screen_width // 3, 60), 30)
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right_width = screen_width - left_width
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self.header = HeaderWindow(2, screen_width, 0, 0)
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self.footer = FooterWindow(2, screen_width, screen_height - 2, 0)
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self.left = curses.newpad(screen_height - 4, self.left_width)
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self.right = StatusDetailWindow(screen_height - 4, self.right_width, 2, self.left_width)
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self.left = StatusListWindow(screen_height - 4, left_width, 2, 0)
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self.right = StatusDetailWindow(screen_height - 4, right_width, 2, left_width)
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def loop(self):
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while True:
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key = self.left.getkey()
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key = self.left.pad.getkey()
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if key.lower() == 'q':
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return
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@ -181,22 +269,6 @@ class TimelineApp:
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self.setup_windows()
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self.full_redraw()
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def scroll_to(self, index):
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self.scroll_pos = index
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height, width = self.stdscr.getmaxyx()
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self.left.refresh(3 * index, 0, 2, 0, height - 4, self.left_width)
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def scroll_up(self):
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if self.scroll_pos > 0:
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self.scroll_to(self.scroll_pos - 1)
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def scroll_down(self):
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self.scroll_to(self.scroll_pos + 1)
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def scroll_refresh(self):
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self.scroll_to(self.scroll_pos)
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def select_previous(self):
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"""Move to the previous status in the timeline."""
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self.footer.clear_message()
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@ -211,49 +283,22 @@ class TimelineApp:
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self.selected = new_index
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self.redraw_after_selection_change(old_index, new_index)
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# Scroll if required
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if new_index < self.scroll_pos:
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self.scroll_up()
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else:
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self.scroll_refresh()
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def select_next(self):
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"""Move to the next status in the timeline."""
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self.footer.clear_message()
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# Load more statuses if no more are available
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if self.selected + 1 >= len(self.statuses):
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self.fetch_next()
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self.draw_statuses(self.left, self.selected + 1)
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self.draw_footer_status()
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old_index = self.selected
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new_index = self.selected + 1
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# Load more statuses if no more are available
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if self.selected + 1 >= len(self.statuses):
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self.fetch_next()
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self.left.draw_statuses(self.statuses, self.selected, new_index - 1)
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self.draw_footer_status()
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self.selected = new_index
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self.redraw_after_selection_change(old_index, new_index)
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# Scroll if required
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if new_index >= self.scroll_pos + self.get_page_size():
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self.scroll_down()
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else:
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self.scroll_refresh()
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def get_page_size(self):
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"""Calculate how many statuses fit on one page (3 lines per status)"""
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height = self.right.window.getmaxyx()[0] - 2 # window height - borders
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return height // 3
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def redraw_after_selection_change(self, old_index, new_index):
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old_status = self.statuses[old_index]
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new_status = self.statuses[new_index]
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# Perform a partial redraw
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self.draw_status_row(self.left, old_status, old_index, False)
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self.draw_status_row(self.left, new_status, new_index, True)
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self.right.draw(new_status)
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self.draw_footer_status()
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def fetch_next(self):
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try:
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self.footer.draw_message("Loading toots...", Color.BLUE)
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@ -273,52 +318,26 @@ class TimelineApp:
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self.header.draw()
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self.draw_footer_status()
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self.left.clear()
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self.left.box()
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self.draw_statuses(self.left)
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self.left.draw_statuses(self.statuses, self.selected)
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self.right.draw(self.get_selected_status())
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self.header.draw()
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self.scroll_refresh()
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def redraw_after_selection_change(self, old_index, new_index):
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old_status = self.statuses[old_index]
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new_status = self.statuses[new_index]
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# Perform a partial redraw
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self.left.draw_status_row(old_status, old_index, highlight=False, draw_divider=False)
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self.left.draw_status_row(new_status, new_index, highlight=True, draw_divider=False)
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self.left.scroll_if_required(new_index)
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self.right.draw(new_status)
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self.draw_footer_status()
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def get_selected_status(self):
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if len(self.statuses) > self.selected:
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return self.statuses[self.selected]
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def draw_status_row(self, window, status, index, highlight=False):
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offset = 3 * index
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height, width = window.getmaxyx()
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color = Color.BLUE if highlight else 0
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date, time = status['created_at']
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window.addstr(offset + 1, 2, date, color)
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window.addstr(offset + 2, 2, time, color)
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trunc_width = width - 16
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acct = trunc(status['account']['acct'], trunc_width).ljust(trunc_width)
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display_name = trunc(status['account']['display_name'], trunc_width).ljust(trunc_width)
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window.addstr(offset + 1, 14, acct, color)
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window.addstr(offset + 2, 14, display_name, color)
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window.addstr(offset + 3, 1, '─' * (width - 2))
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screen_height, screen_width = self.stdscr.getmaxyx()
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window.refresh(0, 0, 2, 0, screen_height - 4, self.left_width)
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def draw_statuses(self, window, starting=0):
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# Resize window to accomodate statuses if required
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height, width = window.getmaxyx()
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new_height = len(self.statuses) * 3 + 1
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if new_height > height:
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window.resize(new_height, width)
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window.box()
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for index, status in enumerate(self.statuses):
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if index >= starting:
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highlight = self.selected == index
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self.draw_status_row(window, status, index, highlight)
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def draw_footer_status(self):
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self.footer.draw_status(self.selected, len(self.statuses))
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