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Implement a basic back queue/stack

This commit is contained in:
Bnyro 2023-06-23 16:52:50 +02:00
parent e5e4d40d89
commit dca386e67a
1 changed files with 26 additions and 8 deletions
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34
src/main.rs
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@ -30,7 +30,7 @@ enum AppState {
struct App {
state: AppState,
message: Option<String>,
latest_action: Option<AppMsg>,
back_queue: Vec<AppMsg>,
posts: FactoryVecDeque<PostRow>,
communities: FactoryVecDeque<CommunityRow>,
profile_page: Controller<ProfilePage>,
@ -52,7 +52,6 @@ pub enum AppMsg {
Login(String, String),
LoggedIn,
Logout,
Retry,
ShowMessage(String),
DoneChoosingInstance(String),
StartFetchPosts(Option<ListingType>, bool),
@ -65,7 +64,8 @@ pub enum AppMsg {
DoneFetchPerson(GetPersonDetailsResponse),
OpenPost(PostId),
DoneFetchPost(GetPostResponse),
OpenInbox
OpenInbox,
PopBackStack
}
#[relm4::component]
@ -86,6 +86,12 @@ impl SimpleComponent for App {
set_icon_name: "view-more",
set_menu_model: Some(&menu_model),
},
pack_start = &gtk::Button {
set_icon_name: "go-previous",
connect_clicked => AppMsg::PopBackStack,
#[watch]
set_visible: model.back_queue.len() > 1,
},
pack_start = &gtk::Button {
set_label: "Home",
connect_clicked => AppMsg::StartFetchPosts(None, true),
@ -279,7 +285,7 @@ impl SimpleComponent for App {
},
gtk::Button {
set_label: "Go Home",
connect_clicked => AppMsg::Retry,
connect_clicked => AppMsg::StartFetchPosts(None, true),
}
}
}
@ -321,7 +327,7 @@ impl SimpleComponent for App {
let inbox_page = InboxPage::builder().launch(()).forward(sender.input_sender(), |msg| msg);
let community_search_buffer = gtk::EntryBuffer::builder().build();
let model = App { state, logged_in, posts, communities, profile_page, community_page, post_page, inbox_page, message: None, latest_action: None, current_communities_type: None, current_posts_type: None, current_communities_page: 1, current_posts_page: 1, community_search_buffer };
let model = App { state, back_queue: vec![], logged_in, posts, communities, profile_page, community_page, post_page, inbox_page, message: None, current_communities_type: None, current_posts_type: None, current_communities_page: 1, current_posts_page: 1, community_search_buffer };
// fetch posts if that's the initial page
if !current_account.instance_url.is_empty() { sender.input(AppMsg::StartFetchPosts(None, true)) };
@ -365,6 +371,14 @@ impl SimpleComponent for App {
}
fn update(&mut self, msg: Self::Input, sender: ComponentSender<Self>) {
// save the back queue
match msg {
AppMsg::DoneFetchCommunities(_) | AppMsg::DoneFetchCommunity(_) | AppMsg::DoneFetchPerson(_) | AppMsg::DoneFetchPost(_) | AppMsg::DoneFetchPosts(_) | AppMsg::ShowMessage(_) => {
self.back_queue.push(msg.clone())
}
_ => {}
}
match msg {
AppMsg::DoneChoosingInstance(instance_url) => {
if instance_url.trim().is_empty() { return; }
@ -499,9 +513,6 @@ impl SimpleComponent for App {
self.message = Some(message);
self.state = AppState::Message;
}
AppMsg::Retry => {
sender.input(self.latest_action.clone().unwrap_or(AppMsg::StartFetchPosts(None, true)));
}
AppMsg::OpenInbox => {
self.state = AppState::Inbox;
self.inbox_page.sender().emit(InboxInput::FetchInbox);
@ -510,6 +521,13 @@ impl SimpleComponent for App {
self.logged_in = true;
sender.input(AppMsg::StartFetchPosts(None, true));
}
AppMsg::PopBackStack => {
let action = self.back_queue.get(self.back_queue.len() - 2);
if let Some(action) = action { sender.input(action.clone()); }
for _ in 0..2 {
self.back_queue.remove(self.back_queue.len() - 1);
}
}
}
}
}