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pastebin/index.js

63 lines
3.6 KiB
JavaScript

import App from './App.js';
import nanoid from './nanoid.min.js';
import {load_bin_handler, hash_change_handler} from './handlers/index.js';
const produce = immer.produce;
immer.setAutoFreeze(false); // needed for high-frequency updated values, like onkeyup->note.temp_text; only once 'save' is called will it produce a new immutable state tree
var root = document.body;
/* Ruthlessly taken from [https://gist.github.com/kitze/fb65f527803a93fb2803ce79a792fff8]: */
const handleActions = (actionsMap, defaultState) =>
(state=defaultState, {type, payload}) =>
produce(state, draft => {
const action = actionsMap[type];
action && action(draft, payload);
});
// get bin id from URL, and load notes from that bin; if a bin id isn't specified in the URL, create a new one and update the URL
let bin_id = window.location.hash.substring(1); // extract the leading '#'
if(bin_id === ''){
bin_id = nanoid();
window.history.replaceState(null,'', '#'+bin_id);
}
// the actual loading from server is done later, after store and dispatch are defined
const reducer = handleActions({
'new-bin': (s, bin) => { s.bin=bin; s.notes=[]; },
'bin-requested': (s, bin_id) => { s.bin={id:bin_id}; s.notes = []; },
'bin-loaded': (s, {bin, _notes}) => { s.bin=bin; s.notes=_notes.map(n=>({is_editing: false, temp_text: n.text, bin_id: bin.id, note:n})); },
'update-search-term': (s, search_term) => { s.search_term=search_term; },
'update-search-results': (s, _notes) => { s.notes =_notes.map(n=>({is_editing: false, temp_text: '', bin_id: s.bin.id, note:n})); },
'add-note': (s, {id, date}) => { s.notes.unshift({is_editing: true, temp_text: '', bin_id: s.bin.id, is_focused:true, note: {id: id, text: '', modified: date}}); },
'notes-loaded': (s, _notes) => { s.notes = _notes.map(n=>({is_editing: false, temp_text: n.text, bin_id: s.bin_id, note:n})); },
'update-note-text': (s, {id, text}) => { const note_s=s.notes.find(n=>n.note.id===id); note_s.note.text=text; }, // updates underlying note text (i.e. the "model", not the app note_state) "in the background" (e.g. from a server-pushed update), regardless of whether it's being edited; "save" is a separate action, below
'update-note-editing': (s, {id, is_editing}) => { const note_s=s.notes.find(n=>n.note.id===id); note_s.is_editing=is_editing; note_s.temp_text=note_s.note.text; },
'save-note-edit': (s, {id, text}) => { const note_s=s.notes.find(n=>n.note.id===id); note_s.note.text=text; note_s.temp_text=text; note_s.is_editing=false; },
'update-sorting': (s, sorting) => { s.sorting=sorting; }
}, {
bin: {id: bin_id},
notes: [
//{is_editing: false, temp_text: '', bin_id: '', note: {id: nanoid(), text: 'Note one', modified: 1}},
],
search_term: '',
sorting: 'new->old'
//search_result_notes: []
});
// create Redux store, with Redux DevTools enabled:
const store = Redux.createStore(reducer, /* preloadedState, */
window.__REDUX_DEVTOOLS_EXTENSION__ && window.__REDUX_DEVTOOLS_EXTENSION__());
const dispatch = function(action_type, payload){ store.dispatch({type:action_type, payload}); };
store.subscribe(()=>{
m.render(root, m(App, {state: store.getState(), dispatch}));
});
window.addEventListener("hashchange", (e)=>hash_change_handler(store.getState(), dispatch, e), false);
let state = store.getState();
load_bin_handler(state, dispatch, bin_id);
// we don't want Mithril auto-redraw system in place, since Redux will manually re-render when necessary with store.subscribe():
// m.mount(root, App);
m.render(root, m(App, {state, dispatch}))