bauiv1lib.gather.nearbytab

  1# Released under the MIT License. See LICENSE for details.
  2#
  3"""Defines the nearby tab in the gather UI."""
  4
  5from __future__ import annotations
  6
  7import weakref
  8from typing import TYPE_CHECKING
  9
 10from bauiv1lib.gather import GatherTab
 11import bauiv1 as bui
 12import bascenev1 as bs
 13
 14if TYPE_CHECKING:
 15    from typing import Any
 16
 17    from bauiv1lib.gather import GatherWindow
 18
 19
 20class NetScanner:
 21    """Class for scanning for nearby games (lan, bluetooth, etc)."""
 22
 23    def __init__(
 24        self,
 25        tab: GatherTab,
 26        scrollwidget: bui.Widget,
 27        tab_button: bui.Widget,
 28        width: float,
 29    ):
 30        self._tab = weakref.ref(tab)
 31        self._scrollwidget = scrollwidget
 32        self._tab_button = tab_button
 33        self._columnwidget = bui.columnwidget(
 34            parent=self._scrollwidget, border=2, margin=0, left_border=10
 35        )
 36        bui.widget(edit=self._columnwidget, up_widget=tab_button)
 37        self._width = width
 38        self._last_selected_host: dict[str, Any] | None = None
 39
 40        self._update_timer = bui.AppTimer(
 41            1.0, bui.WeakCall(self.update), repeat=True
 42        )
 43        # Go ahead and run a few *almost* immediately so we don't
 44        # have to wait a second.
 45        self.update()
 46        bui.apptimer(0.25, bui.WeakCall(self.update))
 47
 48    def __del__(self) -> None:
 49        bs.end_host_scanning()
 50
 51    def _on_select(self, host: dict[str, Any]) -> None:
 52        self._last_selected_host = host
 53
 54    def _on_activate(self, host: dict[str, Any]) -> None:
 55        bs.connect_to_party(host['address'])
 56
 57    def update(self) -> None:
 58        """(internal)"""
 59
 60        # In case our UI was killed from under us.
 61        if not self._columnwidget:
 62            print(
 63                f'ERROR: NetScanner running without UI at time {bui.apptime()}.'
 64            )
 65            return
 66
 67        t_scale = 1.6
 68        for child in self._columnwidget.get_children():
 69            child.delete()
 70
 71        # Grab this now this since adding widgets will change it.
 72        last_selected_host = self._last_selected_host
 73        hosts = bs.host_scan_cycle()
 74        for i, host in enumerate(hosts):
 75            txt3 = bui.textwidget(
 76                parent=self._columnwidget,
 77                size=(self._width / t_scale, 30),
 78                selectable=True,
 79                color=(1, 1, 1),
 80                on_select_call=bui.Call(self._on_select, host),
 81                on_activate_call=bui.Call(self._on_activate, host),
 82                click_activate=True,
 83                text=host['display_string'],
 84                h_align='left',
 85                v_align='center',
 86                corner_scale=t_scale,
 87                maxwidth=(self._width / t_scale) * 0.93,
 88            )
 89            if host == last_selected_host:
 90                bui.containerwidget(
 91                    edit=self._columnwidget,
 92                    selected_child=txt3,
 93                    visible_child=txt3,
 94                )
 95            if i == 0:
 96                bui.widget(edit=txt3, up_widget=self._tab_button)
 97
 98
 99class NearbyGatherTab(GatherTab):
100    """The nearby tab in the gather UI"""
101
102    def __init__(self, window: GatherWindow) -> None:
103        super().__init__(window)
104        self._net_scanner: NetScanner | None = None
105        self._container: bui.Widget | None = None
106
107    def on_activate(
108        self,
109        parent_widget: bui.Widget,
110        tab_button: bui.Widget,
111        region_width: float,
112        region_height: float,
113        region_left: float,
114        region_bottom: float,
115    ) -> bui.Widget:
116        c_width = region_width
117        c_height = region_height - 20
118        sub_scroll_height = c_height - 85
119        sub_scroll_width = 650
120        self._container = bui.containerwidget(
121            parent=parent_widget,
122            position=(
123                region_left,
124                region_bottom + (region_height - c_height) * 0.5,
125            ),
126            size=(c_width, c_height),
127            background=False,
128            selection_loops_to_parent=True,
129        )
130        v = c_height - 30
131        bui.textwidget(
132            parent=self._container,
133            position=(c_width * 0.5, v - 3),
134            color=(0.6, 1.0, 0.6),
135            scale=1.3,
136            size=(0, 0),
137            maxwidth=c_width * 0.9,
138            h_align='center',
139            v_align='center',
140            text=bui.Lstr(
141                resource='gatherWindow.' 'localNetworkDescriptionText'
142            ),
143        )
144        v -= 15
145        v -= sub_scroll_height + 23
146        scrollw = bui.scrollwidget(
147            parent=self._container,
148            position=((region_width - sub_scroll_width) * 0.5, v),
149            size=(sub_scroll_width, sub_scroll_height),
150        )
151
152        self._net_scanner = NetScanner(
153            self, scrollw, tab_button, width=sub_scroll_width
154        )
155
156        bui.widget(edit=scrollw, autoselect=True, up_widget=tab_button)
157        return self._container
158
159    def on_deactivate(self) -> None:
160        self._net_scanner = None