Sideband_CE/main.py

import RNS
import LXMF
import time

from kivy.logger import Logger, LOG_LEVELS
Logger.setLevel(LOG_LEVELS["error"])

from sideband.core import SidebandCore

from kivymd.app import MDApp
from kivy.core.window import Window
from kivy.clock import Clock
from kivy.lang.builder import Builder

from ui.layouts import root_layout
from ui.conversations import Conversations, MsgSync, NewConv
from ui.announces import Announces
from ui.messages import Messages, ts_format
from ui.helpers import ContentNavigationDrawer, DrawerList, IconListItem

from kivy.metrics import dp
from kivymd.uix.button import MDFlatButton
from kivymd.uix.dialog import MDDialog

__version__ = "0.1.4"
__variant__ = "alpha"

class SidebandApp(MDApp):
    def __init__(self, **kwargs):
        super().__init__(**kwargs)
        self.title = "Sideband"

        self.sideband = SidebandCore(self)
        self.conversations_view = None

        self.flag_new_conversations = False
        self.flag_unread_conversations = False
        self.flag_new_announces = False
        self.lxmf_sync_dialog_open = False
        self.sync_dialog = None


        Window.softinput_mode = "below_target"
        self.icon = self.sideband.asset_dir+"/images/icon.png"

    #################################################
    # General helpers                               #
    #################################################

    def build(self):
        FONT_PATH = self.sideband.asset_dir+"/fonts"
        # self.theme_cls.primary_palette = "Green"
        self.theme_cls.theme_style = "Dark"
        # self.theme_cls.theme_style = "Light"
        screen = Builder.load_string(root_layout)

        return screen

    def jobs(self, delta_time):
        if self.root.ids.screen_manager.current == "messages_screen":
            self.messages_view.update()

            if not self.root.ids.messages_scrollview.dest_known:
                self.message_area_detect()

        elif self.root.ids.screen_manager.current == "conversations_screen":
            if self.flag_new_conversations:
                RNS.log("Updating because of new conversations flag")
                if self.conversations_view != None:
                    self.conversations_view.update()

            if self.flag_unread_conversations:
                RNS.log("Updating because of unread messages flag")
                if self.conversations_view != None:
                    self.conversations_view.update()

            if self.lxmf_sync_dialog_open and self.sync_dialog != None:
                self.sync_dialog.ids.sync_progress.value = self.sideband.get_sync_progress()*100
                self.sync_dialog.ids.sync_status.text = self.sideband.get_sync_status()

        elif self.root.ids.screen_manager.current == "announces_screen":
            if self.flag_new_announces:
                RNS.log("Updating because of new announces flag")
                if self.announces_view != None:
                    self.announces_view.update()

    def on_start(self):
        self.root.ids.screen_manager.app = self
        self.root.ids.app_version_info.text = "Sideband v"+__version__+" "+__variant__

        self.open_conversations()

        Clock.schedule_interval(self.jobs, 1)

    def widget_hide(self, w, hide=True):
        if hasattr(w, "saved_attrs"):
            if not hide:
                w.height, w.size_hint_y, w.opacity, w.disabled = w.saved_attrs
                del w.saved_attrs
        elif hide:
            w.saved_attrs = w.height, w.size_hint_y, w.opacity, w.disabled
            w.height, w.size_hint_y, w.opacity, w.disabled = 0, None, 0, True

    def quit_action(self, sender):
        RNS.exit()
        RNS.log("RNS shutdown complete")
        MDApp.get_running_app().stop()
        Window.close()

    def announce_now_action(self, sender=None):
        self.sideband.lxmf_announce()

        yes_button = MDFlatButton(
            text="OK",
        )

        dialog = MDDialog(
            text="An announce for your LXMF destination was sent on all available interfaces",
            buttons=[ yes_button ],
        )
        def dl_yes(s):
            dialog.dismiss()
        
        yes_button.bind(on_release=dl_yes)
        dialog.open()

    def conversation_update(self, context_dest):
        pass
        # if self.root.ids.messages_scrollview.active_conversation == context_dest:
        #     self.messages_view.update_widget()
        # else:
        #     RNS.log("Not updating since context_dest does not match active")


    #################################################
    # Screens                                       #
    #################################################

    ### Messages (conversation) screen
    ######################################
    def conversation_from_announce_action(self, context_dest):
        if self.sideband.has_conversation(context_dest):
            pass
        else:
            self.sideband.create_conversation(context_dest)

        self.open_conversation(context_dest)


    def conversation_action(self, sender):
        self.open_conversation(sender.sb_uid)

    def open_conversation(self, context_dest):
        if self.sideband.config["propagation_by_default"]:
            self.outbound_mode_propagation = True
        else:
            self.outbound_mode_propagation = False

        self.root.ids.screen_manager.transition.direction = "left"
        self.messages_view = Messages(self, context_dest)

        for child in self.root.ids.messages_scrollview.children:
            self.root.ids.messages_scrollview.remove_widget(child)

        list_widget = self.messages_view.get_widget()

        self.root.ids.messages_scrollview.add_widget(list_widget)
        self.root.ids.messages_scrollview.scroll_y = 0
        self.root.ids.messages_toolbar.title = self.sideband.peer_display_name(context_dest)
        self.root.ids.messages_scrollview.active_conversation = context_dest

        self.root.ids.nokeys_text.text = ""
        self.message_area_detect()
        self.update_message_widgets()

        self.root.ids.screen_manager.current = "messages_screen"
        
        self.sideband.read_conversation(context_dest)

    def close_messages_action(self, sender=None):
        self.open_conversations(direction="right")

    def message_send_action(self, sender=None):
        if self.root.ids.screen_manager.current == "messages_screen":
            if self.outbound_mode_propagation and self.sideband.message_router.get_outbound_propagation_node() == None:
                self.messages_view.send_error_dialog = MDDialog(
                    text="Error: Propagated delivery was requested, but no active LXMF propagation nodes were found. Cannot send message. Wait for a Propagation Node to announce on the network, or manually specify one in the settings.",
                    buttons=[
                        MDFlatButton(
                            text="OK",
                            theme_text_color="Custom",
                            text_color=self.theme_cls.primary_color,
                            on_release=self.messages_view.close_send_error_dialog
                        )
                    ],
                )
                self.messages_view.send_error_dialog.open()

            else:
                msg_content = self.root.ids.message_text.text
                context_dest = self.root.ids.messages_scrollview.active_conversation
                if self.sideband.send_message(msg_content, context_dest, self.outbound_mode_propagation):
                    self.root.ids.message_text.text = ""
                    self.jobs(0)
                else:
                    self.messages_view.send_error_dialog = MDDialog(
                        text="Error: Could not send the message",
                        buttons=[
                            MDFlatButton(
                                text="OK",
                                theme_text_color="Custom",
                                text_color=self.theme_cls.primary_color,
                                on_release=self.messages_view.close_send_error_dialog
                            )
                        ],
                    )
                    self.messages_view.send_error_dialog.open()

    def message_propagation_action(self, sender):
        if self.outbound_mode_propagation:
            self.outbound_mode_propagation = False
        else:
            self.outbound_mode_propagation = True
        self.update_message_widgets()

    def update_message_widgets(self):
        toolbar_items = self.root.ids.messages_toolbar.ids.right_actions.children
        mode_item = toolbar_items[1]

        if not self.outbound_mode_propagation:
            mode_item.icon = "lan-connect"
            self.root.ids.message_text.hint_text = "Write message for direct delivery"
        else:
            mode_item.icon = "upload-network"
            self.root.ids.message_text.hint_text = "Write message for propagation"
            # self.root.ids.message_text.hint_text = "Write message for delivery via propagation nodes"
    
    def key_query_action(self, sender):
        context_dest = self.root.ids.messages_scrollview.active_conversation
        if self.sideband.request_key(context_dest):
            keys_str = "Public key information for "+RNS.prettyhexrep(context_dest)+" was requested from the network. Waiting for request to be answered."
            self.root.ids.nokeys_text.text = keys_str
        else:
            keys_str = "Could not send request. Check your connectivity and addresses."
            self.root.ids.nokeys_text.text = keys_str

    def message_area_detect(self):
        context_dest = self.root.ids.messages_scrollview.active_conversation
        if self.sideband.is_known(context_dest):
            self.root.ids.messages_scrollview.dest_known = True
            self.widget_hide(self.root.ids.message_input_part, False)
            self.widget_hide(self.root.ids.no_keys_part, True)
        else:
            self.root.ids.messages_scrollview.dest_known = False
            if self.root.ids.nokeys_text.text == "":
                keys_str = "The crytographic keys for the destination address are unknown at this time. You can wait for an announce to arrive, or query the network for the necessary keys."
                self.root.ids.nokeys_text.text = keys_str
            self.widget_hide(self.root.ids.message_input_part, True)
            self.widget_hide(self.root.ids.no_keys_part, False)


    ### Conversations screen
    ######################################       
    def conversations_action(self, sender=None):
        self.open_conversations()

    def open_conversations(self, direction="left"):
        self.root.ids.screen_manager.transition.direction = direction
        self.root.ids.nav_drawer.set_state("closed")
        self.conversations_view = Conversations(self)

        for child in self.root.ids.conversations_scrollview.children:
            self.root.ids.conversations_scrollview.remove_widget(child)

        self.root.ids.conversations_scrollview.add_widget(self.conversations_view.get_widget())

        self.root.ids.screen_manager.current = "conversations_screen"
        self.root.ids.messages_scrollview.active_conversation = None

    def lxmf_sync_action(self, sender):
        if self.sideband.message_router.get_outbound_propagation_node() == None:
            yes_button = MDFlatButton(
                text="OK",
            )

            dialog = MDDialog(
                text="No active LXMF propagation nodes were found. Cannot fetch messages. Wait for a Propagation Node to announce on the network, or manually specify one in the settings.",
                buttons=[ yes_button ],
            )
            def dl_yes(s):
                dialog.dismiss()
            
            yes_button.bind(on_release=dl_yes)
            dialog.open()
        else:
            if self.sideband.config["lxmf_sync_limit"]:
                sl = self.sideband.config["lxmf_sync_max"]
            else:
                sl = None

            self.sideband.request_lxmf_sync(limit=sl)

            close_button = MDFlatButton(text="Close", font_size=dp(20))
            # stop_button = MDFlatButton(text="Stop", font_size=dp(20))
            dialog_content = MsgSync()
            dialog = MDDialog(
                title="LXMF Sync via "+RNS.prettyhexrep(self.sideband.message_router.get_outbound_propagation_node()),
                type="custom",
                content_cls=dialog_content,
                buttons=[ close_button ],
            )
            dialog.d_content = dialog_content
            def dl_close(s):                
                self.lxmf_sync_dialog_open = False
                dialog.dismiss()
                self.sideband.cancel_lxmf_sync()

            # def dl_stop(s):         
            #     self.lxmf_sync_dialog_open = False
            #     dialog.dismiss()
            #     self.sideband.cancel_lxmf_sync()

            close_button.bind(on_release=dl_close)
            # stop_button.bind(on_release=dl_stop)
            self.lxmf_sync_dialog_open = True
            self.sync_dialog = dialog_content
            dialog.open()
            dialog_content.ids.sync_progress.value = self.sideband.get_sync_progress()*100
            dialog_content.ids.sync_status.text = self.sideband.get_sync_status()

    def new_conversation_action(self, sender=None):
        try:
            yes_button = MDFlatButton(
                text="OK",
                font_size=dp(20),
            )
            no_button = MDFlatButton(
                text="Cancel",
                font_size=dp(20),
            )
            dialog_content = NewConv()
            dialog = MDDialog(
                title="New Conversation",
                type="custom",
                content_cls=dialog_content,
                buttons=[ yes_button, no_button ],
            )
            dialog.d_content = dialog_content
            def dl_yes(s):
                new_result = False
                try:
                    n_address = dialog.d_content.ids["n_address_field"].text
                    n_name = dialog.d_content.ids["n_name_field"].text
                    n_trusted = dialog.d_content.ids["n_trusted"].active
                    RNS.log("Create conversation "+str(n_address)+"/"+str(n_name)+"/"+str(n_trusted))
                    new_result = self.sideband.new_conversation(n_address, n_name, n_trusted)

                except Exception as e:
                    RNS.log("Error while creating conversation: "+str(e), RNS.LOG_ERROR)

                if new_result:
                    dialog.d_content.ids["n_address_field"].error = False
                    dialog.dismiss()
                    self.open_conversations()
                else:
                    dialog.d_content.ids["n_address_field"].error = True
                    # dialog.d_content.ids["n_error_field"].text = "Could not create conversation. Check your input."

            def dl_no(s):
                dialog.dismiss()

            yes_button.bind(on_release=dl_yes)
            no_button.bind(on_release=dl_no)
            dialog.open()

        except Exception as e:
            RNS.log("Error while creating new conversation dialog: "+str(e), RNS.LOG_ERROR)

    ### Information/version screen
    ######################################
    def information_action(self, sender=None):
        def link_exec(sender=None, event=None):
            RNS.log("Click")
            import webbrowser
            webbrowser.open("https://unsigned.io/sideband")

        info = "This is Sideband v"+__version__+" "+__variant__+".\n\nHumbly build using the following open components:\n\n - [b]Reticulum[/b] (MIT License)\n - [b]LXMF[/b] (MIT License)\n - [b]KivyMD[/b] (MIT License)\n - [b]Kivy[/b] (MIT License)\n - [b]Python[/b] (PSF License)"+"\n\nGo to [u][ref=link]https://unsigned.io/sideband[/ref][/u] to support the project.\n\nThe Sideband app is Copyright (c) 2022 Mark Qvist / unsigned.io\n\nPermission is granted to freely share and distribute binary copies of Sideband v"+__version__+" "+__variant__+", so long as no payment or compensation is charged for said distribution or sharing.\n\nIf you were charged or paid anything for this copy of Sideband, please report it to [b]license@unsigned.io[/b].\n\nTHIS IS EXPERIMENTAL SOFTWARE - USE AT YOUR OWN RISK AND RESPONSIBILITY"
        self.root.ids.information_info.text = info
        self.root.ids.information_info.bind(on_ref_press=link_exec)
        self.root.ids.screen_manager.transition.direction = "left"
        self.root.ids.screen_manager.current = "information_screen"
        self.root.ids.nav_drawer.set_state("closed")

    ### Prepare Settings screen
    def settings_action(self, sender=None):
        self.root.ids.screen_manager.transition.direction = "left"

        def save_disp_name(sender=None, event=None):
            in_name = self.root.ids.settings_display_name.text
            if in_name == "":
                new_name = "Anonymous Peer"
            else:
                new_name = in_name

            self.sideband.config["display_name"] = new_name
            self.sideband.save_configuration()

        def save_prop_addr(sender=None, event=None):
            in_addr = self.root.ids.settings_propagation_node_address.text

            new_addr = None
            if in_addr == "":
                new_addr = None
                self.root.ids.settings_propagation_node_address.error = False
            else:
                if len(in_addr) != RNS.Reticulum.TRUNCATED_HASHLENGTH//8*2:
                    new_addr = None
                else:
                    try:
                        new_addr = bytes.fromhex(in_addr)
                    except Exception as e:
                        new_addr = None

                if new_addr == None:
                    self.root.ids.settings_propagation_node_address.error = True
                else:
                    self.root.ids.settings_propagation_node_address.error = False


            self.sideband.config["lxmf_propagation_node"] = new_addr
            self.sideband.set_active_propagation_node(self.sideband.config["lxmf_propagation_node"])

        def save_start_announce(sender=None, event=None):
            RNS.log("Save announce")
            self.sideband.config["start_announce"] = self.root.ids.settings_start_announce.active
            self.sideband.save_configuration()

        def save_lxmf_delivery_by_default(sender=None, event=None):
            RNS.log("Save propagation")
            self.sideband.config["propagation_by_default"] = self.root.ids.settings_lxmf_delivery_by_default.active
            self.sideband.save_configuration()

        def save_lxmf_sync_limit(sender=None, event=None):
            RNS.log("Save propagation")
            self.sideband.config["lxmf_sync_limit"] = self.root.ids.settings_lxmf_sync_limit.active
            self.sideband.save_configuration()

        self.root.ids.settings_lxmf_address.text = RNS.hexrep(self.sideband.lxmf_destination.hash, delimit=False)

        self.root.ids.settings_display_name.text = self.sideband.config["display_name"]
        self.root.ids.settings_display_name.bind(on_text_validate=save_disp_name)
        self.root.ids.settings_display_name.bind(focus=save_disp_name)

        if self.sideband.config["lxmf_propagation_node"] == None:
            prop_node_addr = ""
        else:
            prop_node_addr = RNS.hexrep(self.sideband.config["lxmf_propagation_node"], delimit=False)

        self.root.ids.settings_propagation_node_address.text = prop_node_addr
        self.root.ids.settings_propagation_node_address.bind(on_text_validate=save_prop_addr)
        self.root.ids.settings_propagation_node_address.bind(focus=save_prop_addr)

        self.root.ids.settings_start_announce.active = self.sideband.config["start_announce"]
        self.root.ids.settings_start_announce.bind(active=save_start_announce)

        self.root.ids.settings_lxmf_delivery_by_default.active = self.sideband.config["propagation_by_default"]
        self.root.ids.settings_lxmf_delivery_by_default.bind(active=save_lxmf_delivery_by_default)

        if self.sideband.config["lxmf_sync_limit"] == None or self.sideband.config["lxmf_sync_limit"] == False:
            sync_limit = False
        else:
            sync_limit = True

        self.root.ids.settings_lxmf_sync_limit.active = sync_limit
        self.root.ids.settings_lxmf_sync_limit.bind(active=save_lxmf_sync_limit)

        self.root.ids.screen_manager.current = "settings_screen"
        self.root.ids.nav_drawer.set_state("closed")

    def close_settings_action(self, sender=None):
        self.open_conversations(direction="right")


    ### Connectivity screen
    ######################################
    def connectivity_action(self, sender=None):
        def save_connectivity(sender=None, event=None):
            RNS.log("Save connectivity")
            self.sideband.config["connect_local"] = self.root.ids.connectivity_use_local.active
            self.sideband.config["connect_local_groupid"] = self.root.ids.connectivity_local_groupid.text
            self.sideband.config["connect_local_ifac_netname"] = self.root.ids.connectivity_local_ifac_netname.text
            self.sideband.config["connect_local_ifac_passphrase"] = self.root.ids.connectivity_local_ifac_passphrase.text
            self.sideband.config["connect_tcp"] = self.root.ids.connectivity_use_tcp.active
            self.sideband.config["connect_tcp_host"] = self.root.ids.connectivity_tcp_host.text
            self.sideband.config["connect_tcp_port"] = self.root.ids.connectivity_tcp_port.text
            self.sideband.config["connect_tcp_ifac_netname"] = self.root.ids.connectivity_tcp_ifac_netname.text
            self.sideband.config["connect_tcp_ifac_passphrase"] = self.root.ids.connectivity_tcp_ifac_passphrase.text
            self.sideband.config["connect_i2p"] = self.root.ids.connectivity_use_i2p.active
            self.sideband.config["connect_i2p_b32"] = self.root.ids.connectivity_i2p_b32.text
            self.sideband.config["connect_i2p_ifac_netname"] = self.root.ids.connectivity_i2p_ifac_netname.text
            self.sideband.config["connect_i2p_ifac_passphrase"] = self.root.ids.connectivity_i2p_ifac_passphrase.text
            self.sideband.save_configuration()

        info =  "By default, sideband will try to discover and connect to any available Reticulum network via active WiFi and/or Ethernet interfaces. If any Reticulum Transport Instances are found, Sideband will use these to connect to wider Reticulum networks. You can disable this behaviour if you don't want it.\n\n"
        info += "You can connect also connect to a network via a remote or local Reticulum instance using TCP or I2P. [b]Please Note![/b] Connecting via I2P requires that you already have I2P running on your device, and the SAM API enabled.\n\n"
        info += "For changes to connectivity to take effect, you must shut down and restart Sideband."
        self.root.ids.connectivity_info.text = info

        self.root.ids.connectivity_use_local.active = self.sideband.config["connect_local"]
        self.root.ids.connectivity_local_groupid.text = self.sideband.config["connect_local_groupid"]
        self.root.ids.connectivity_local_ifac_netname.text = self.sideband.config["connect_local_ifac_netname"]
        self.root.ids.connectivity_local_ifac_passphrase.text = self.sideband.config["connect_local_ifac_passphrase"]

        self.root.ids.connectivity_use_tcp.active = self.sideband.config["connect_tcp"]
        self.root.ids.connectivity_tcp_host.text = self.sideband.config["connect_tcp_host"]
        self.root.ids.connectivity_tcp_port.text = self.sideband.config["connect_tcp_port"]
        self.root.ids.connectivity_tcp_ifac_netname.text = self.sideband.config["connect_tcp_ifac_netname"]
        self.root.ids.connectivity_tcp_ifac_passphrase.text = self.sideband.config["connect_tcp_ifac_passphrase"]

        self.root.ids.connectivity_use_i2p.active = self.sideband.config["connect_i2p"]
        self.root.ids.connectivity_i2p_b32.text = self.sideband.config["connect_i2p_b32"]
        self.root.ids.connectivity_i2p_ifac_netname.text = self.sideband.config["connect_i2p_ifac_netname"]
        self.root.ids.connectivity_i2p_ifac_passphrase.text = self.sideband.config["connect_i2p_ifac_passphrase"]

        self.root.ids.connectivity_use_local.bind(active=save_connectivity)
        self.root.ids.connectivity_local_groupid.bind(on_text_validate=save_connectivity)
        self.root.ids.connectivity_local_ifac_netname.bind(on_text_validate=save_connectivity)
        self.root.ids.connectivity_local_ifac_passphrase.bind(on_text_validate=save_connectivity)
        self.root.ids.connectivity_use_tcp.bind(active=save_connectivity)
        self.root.ids.connectivity_tcp_host.bind(on_text_validate=save_connectivity)
        self.root.ids.connectivity_tcp_port.bind(on_text_validate=save_connectivity)
        self.root.ids.connectivity_tcp_ifac_netname.bind(on_text_validate=save_connectivity)
        self.root.ids.connectivity_tcp_ifac_passphrase.bind(on_text_validate=save_connectivity)
        self.root.ids.connectivity_use_i2p.bind(active=save_connectivity)
        self.root.ids.connectivity_i2p_b32.bind(on_text_validate=save_connectivity)
        self.root.ids.connectivity_i2p_ifac_netname.bind(on_text_validate=save_connectivity)
        self.root.ids.connectivity_i2p_ifac_passphrase.bind(on_text_validate=save_connectivity)

        self.root.ids.screen_manager.transition.direction = "left"
        self.root.ids.screen_manager.current = "connectivity_screen"
        self.root.ids.nav_drawer.set_state("closed")


    def close_connectivity_action(self, sender=None):
        self.open_conversations(direction="right")

    ### Announce Stream screen
    ######################################
    def announces_action(self, sender=None):
        self.root.ids.screen_manager.transition.direction = "left"
        self.root.ids.nav_drawer.set_state("closed")
        self.announces_view = Announces(self)


        # info = "The [b]Announce Stream[/b] feature is not yet implemented in Sideband.\n\nWant it faster? Go to [u][ref=link]https://unsigned.io/sideband[/ref][/u] to support the project."
        # self.root.ids.announces_info.text = info
        # self.root.ids.announces_info.bind(on_ref_press=link_exec)

        for child in self.root.ids.announces_scrollview.children:
            self.root.ids.announces_scrollview.remove_widget(child)

        self.root.ids.announces_scrollview.add_widget(self.announces_view.get_widget())

        self.root.ids.screen_manager.current = "announces_screen"

    def announce_filter_action(self, sender=None):
        pass


    #################################################
    # Unimplemented Screens                         #
    #################################################

    def keys_action(self, sender=None):
        def link_exec(sender=None, event=None):
            RNS.log("Click")
            import webbrowser
            webbrowser.open("https://unsigned.io/sideband")

        info = "The [b]Encryption Keys[/b] import and export feature is not yet implemented in Sideband.\n\nWant it faster? Go to [u][ref=link]https://unsigned.io/sideband[/ref][/u] to support the project."
        self.root.ids.keys_info.text = info
        self.root.ids.keys_info.bind(on_ref_press=link_exec)
        self.root.ids.screen_manager.transition.direction = "left"
        self.root.ids.screen_manager.current = "keys_screen"
        self.root.ids.nav_drawer.set_state("closed")

    def map_action(self, sender=None):
        def link_exec(sender=None, event=None):
            RNS.log("Click")
            import webbrowser
            webbrowser.open("https://unsigned.io/sideband")

        info = "The [b]Local Area[/b] feature is not yet implemented in Sideband.\n\nWant it faster? Go to [u][ref=link]https://unsigned.io/sideband[/ref][/u] to support the project."
        self.root.ids.map_info.text = info
        self.root.ids.map_info.bind(on_ref_press=link_exec)
        self.root.ids.screen_manager.transition.direction = "left"
        self.root.ids.screen_manager.current = "map_screen"
        self.root.ids.nav_drawer.set_state("closed")

    def broadcasts_action(self, sender=None):
        def link_exec(sender=None, event=None):
            RNS.log("Click")
            import webbrowser
            webbrowser.open("https://unsigned.io/sideband")

        info = "The [b]Local Broadcasts[/b] feature will allow you to send and listen for local broadcast transmissions on connected radio, LoRa and WiFi interfaces.\n\n[b]Local Broadcasts[/b] makes it easy to establish public information exchange with anyone in direct radio range, or even with large areas far away using the [i]Remote Broadcast Repeater[/i] feature.\n\nThese features are not yet implemented in Sideband.\n\nWant it faster? Go to [u][ref=link]https://unsigned.io/sideband[/ref][/u] to support the project."
        self.root.ids.broadcasts_info.text = info
        self.root.ids.broadcasts_info.bind(on_ref_press=link_exec)
        self.root.ids.screen_manager.transition.direction = "left"
        self.root.ids.screen_manager.current = "broadcasts_screen"
        self.root.ids.nav_drawer.set_state("closed")

    def guide_action(self, sender=None):
        def link_exec(sender=None, event=None):
            RNS.log("Click")
            import webbrowser
            webbrowser.open("https://unsigned.io/sideband")

        info = "The [b]Guide[/b] section is not yet implemented in Sideband.\n\nWant it faster? Go to [u][ref=link]https://unsigned.io/sideband[/ref][/u] to support the project."
        self.root.ids.guide_info.text = info
        self.root.ids.guide_info.bind(on_ref_press=link_exec)
        self.root.ids.screen_manager.transition.direction = "left"
        self.root.ids.screen_manager.current = "guide_screen"
        self.root.ids.nav_drawer.set_state("closed")

SidebandApp().run()