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path: root/poezio/tabs/bookmarkstab.py
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"""
Defines the data-forms Tab
"""

import asyncio
import logging
from typing import Dict, Callable, List

from slixmpp.exceptions import IqError, IqTimeout

from poezio import windows
from poezio.bookmarks import Bookmark, BookmarkList
from poezio.core.structs import Command
from poezio.tabs import Tab

from slixmpp import JID, InvalidJID

log = logging.getLogger(__name__)


class BookmarksTab(Tab):
    """
    A tab displaying lines of bookmarks, each bookmark having
    a 4 widgets to set the jid/password/autojoin/storage method
    """
    plugin_commands: Dict[str, Command] = {}
    plugin_keys: Dict[str, Callable] = {}

    def __init__(self, core, bookmarks: BookmarkList):
        Tab.__init__(self, core)
        self._name = "Bookmarks"
        self.bookmarks = bookmarks
        self.new_bookmarks: List[Bookmark] = []
        self.removed_bookmarks: List[Bookmark] = []
        self.header_win = windows.ColumnHeaderWin(
            ['name', 'room@server/nickname', 'password', 'autojoin',
             'storage'])
        self.bookmarks_win = windows.BookmarksWin(self.bookmarks)
        self.help_win = windows.HelpText('Ctrl+Y: save, Ctrl+G: cancel, '
                                         '↑↓: change lines, tab: change '
                                         'column, M-a: add bookmark, C-k'
                                         ': delete bookmark')
        self.info_header = windows.BookmarksInfoWin()
        self.key_func['KEY_UP'] = self.bookmarks_win.go_to_previous_line_input
        self.key_func['KEY_DOWN'] = self.bookmarks_win.go_to_next_line_input
        self.key_func['^I'] = self.bookmarks_win.go_to_next_horizontal_input
        self.key_func['^G'] = self.on_cancel
        self.key_func['^Y'] = self.on_save
        self.key_func['M-a'] = self.add_bookmark
        self.key_func['^K'] = self.del_bookmark
        self.resize()
        self.update_commands()

    def add_bookmark(self):
        new_bookmark = Bookmark(
            JID('room@example.tld/nick'), method='local')
        self.new_bookmarks.append(new_bookmark)
        self.bookmarks_win.add_bookmark(new_bookmark)

    def del_bookmark(self):
        current = self.bookmarks_win.del_current_bookmark()
        if current in self.new_bookmarks:
            self.new_bookmarks.remove(current)
        else:
            self.removed_bookmarks.append(current)

    def on_cancel(self):
        self.core.close_tab(self)
        return True

    def on_scroll_down(self):
        return self.bookmarks_win.go_to_next_page()

    def on_scroll_up(self):
        return self.bookmarks_win.go_to_previous_page()

    def on_save(self):
        self.bookmarks_win.save()
        if find_duplicates(self.new_bookmarks):
            self.core.information(
                'Duplicate bookmarks in list (saving aborted)', 'Error')
            return
        for bm in self.new_bookmarks:
            try:
                JID(bm.jid)
                if not self.bookmarks[bm.jid]:
                    self.bookmarks.append(bm)
            except InvalidJID:
                self.core.information(
                    'Invalid JID for bookmark: %s/%s' % (bm.jid, bm.nick),
                    'Error')
                return


        for bm in self.removed_bookmarks:
            if bm in self.bookmarks:
                self.bookmarks.remove(bm)

        asyncio.ensure_future(
            self.save_routine()
        )

    async def save_routine(self):
        try:
            await self.bookmarks.save(self.core.xmpp)
            self.core.information('Bookmarks saved', 'Info')
        except (IqError, IqTimeout):
            self.core.information('Remote bookmarks not saved.', 'Error')
        self.core.close_tab(self)
        return True

    def on_input(self, key, raw=False):
        if key in self.key_func:
            res = self.key_func[key]()
            if res:
                return res
            self.bookmarks_win.refresh_current_input()
        else:
            self.bookmarks_win.on_input(key)

    def resize(self):
        self.need_resize = False
        self.header_win.resize_columns({
            'name':
            self.width // 4,
            'room@server/nickname':
            self.width // 4,
            'password':
            self.width // 6,
            'autojoin':
            self.width // 6,
            'storage':
            self.width // 6
        })
        info_height = self.core.information_win_size
        tab_height = Tab.tab_win_height()
        self.header_win.resize(1, self.width, 0, 0)
        self.bookmarks_win.resize(self.height - 3 - tab_height - info_height,
                                  self.width, 1, 0)
        self.help_win.resize(1, self.width, self.height - 1, 0)
        self.info_header.resize(1, self.width,
                                self.height - 2 - tab_height - info_height, 0)

    def on_info_win_size_changed(self):
        if self.core.information_win_size >= self.height - 3:
            return
        info_height = self.core.information_win_size
        tab_height = Tab.tab_win_height()
        self.bookmarks_win.resize(self.height - 3 - tab_height - info_height,
                                  self.width, 1, 0)
        self.info_header.resize(1, self.width,
                                self.height - 2 - tab_height - info_height, 0)

    def refresh(self):
        if self.need_resize:
            self.resize()
        self.header_win.refresh()
        self.refresh_tab_win()
        self.help_win.refresh()
        self.info_header.refresh(self.bookmarks.preferred)
        self.info_win.refresh()
        self.bookmarks_win.refresh()


def find_duplicates(bm_list):
    jids = set()
    for bookmark in bm_list:
        if bookmark.jid in jids:
            return True
        jids.add(bookmark.jid)
    return False