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joplin/ReactNativeClient/lib/reducer.js
2017-10-07 23:17:10 +01:00

306 lines
7.3 KiB
JavaScript

import { Note } from 'lib/models/note.js';
const defaultState = {
notes: [],
notesSource: '',
notesParentType: null,
folders: [],
tags: [],
selectedNoteId: null,
selectedFolderId: null,
selectedTagId: null,
selectedItemType: 'note',
showSideMenu: false,
screens: {},
historyCanGoBack: false,
notesOrder: [
{ by: 'user_updated_time', dir: 'DESC' },
],
syncStarted: false,
syncReport: {},
searchQuery: '',
settings: {},
appState: 'starting',
route: {
type: 'NAV_GO',
routeName: 'Welcome',
params: {},
},
};
let navHistory = [];
function historyCanGoBackTo(route) {
if (route.routeName == 'Note') return false;
if (route.routeName == 'Folder') return false;
return true;
}
const reducer = (state = defaultState, action) => {
let newState = state;
let historyGoingBack = false;
try {
switch (action.type) {
case 'NAV_BACK':
if (!navHistory.length) break;
let newAction = null;
while (navHistory.length) {
newAction = navHistory.pop();
if (newAction.routeName != state.route.routeName) break;
}
action = newAction ? newAction : navHistory.pop();
historyGoingBack = true;
// Fall throught
case 'NAV_GO':
const currentRoute = state.route;
const currentRouteName = currentRoute ? currentRoute.routeName : '';
if (!historyGoingBack && historyCanGoBackTo(currentRoute)) {
// If the route *name* is the same (even if the other parameters are different), we
// overwrite the last route in the history with the current one. If the route name
// is different, we push a new history entry.
if (currentRoute.routeName == action.routeName) {
// nothing
} else {
navHistory.push(currentRoute);
}
}
// HACK: whenever a new screen is loaded, all the previous screens of that type
// are overwritten with the new screen parameters. This is because the way notes
// are currently loaded is not optimal (doesn't retain history properly) so
// this is a simple fix without doing a big refactoring to change the way notes
// are loaded. Might be good enough since going back to different folders
// is probably not a common workflow.
for (let i = 0; i < navHistory.length; i++) {
let n = navHistory[i];
if (n.routeName == action.routeName) {
navHistory[i] = Object.assign({}, action);
}
}
if (action.routeName == 'Welcome') navHistory = [];
reg.logger().info('Route: ' + currentRouteName + ' => ' + action.routeName);
newState = Object.assign({}, state);
if ('noteId' in action) {
newState.selectedNoteId = action.noteId;
}
if ('folderId' in action) {
newState.selectedFolderId = action.folderId;
newState.notesParentType = 'Folder';
}
if ('tagId' in action) {
newState.selectedTagId = action.tagId;
newState.notesParentType = 'Tag';
}
if ('itemType' in action) {
newState.selectedItemType = action.itemType;
}
newState.route = action;
newState.historyCanGoBack = !!navHistory.length;
break;
case 'NOTES_SELECT':
newState = Object.assign({}, state);
newState.selectedNoteId = action.noteId;
break;
case 'FOLDERS_SELECT':
newState = Object.assign({}, state);
newState.selectedFolderId = action.folderId;
break;
case 'SETTINGS_UPDATE_ALL':
newState = Object.assign({}, state);
newState.settings = action.settings;
break;
case 'SETTINGS_UPDATE_ONE':
newState = Object.assign({}, state);
let newSettings = Object.assign({}, state.settings);
newSettings[action.key] = action.value;
newState.settings = newSettings;
break;
// Replace all the notes with the provided array
case 'NOTES_UPDATE_ALL':
newState = Object.assign({}, state);
newState.notes = action.notes;
newState.notesSource = action.notesSource;
break;
// Insert the note into the note list if it's new, or
// update it within the note array if it already exists.
case 'NOTES_UPDATE_ONE':
const modNote = action.note;
let newNotes = state.notes.slice();
var found = false;
for (let i = 0; i < newNotes.length; i++) {
let n = newNotes[i];
if (n.id == modNote.id) {
if (!('parent_id' in modNote) || modNote.parent_id == n.parent_id) {
// Merge the properties that have changed (in modNote) into
// the object we already have.
newNotes[i] = Object.assign({}, newNotes[i]);
for (let n in modNote) {
if (!modNote.hasOwnProperty(n)) continue;
newNotes[i][n] = modNote[n];
}
} else {
newNotes.splice(i, 1);
}
found = true;
break;
}
}
if (!found && ('parent_id' in modNote) && modNote.parent_id == state.selectedFolderId) newNotes.push(modNote);
newNotes = Note.sortNotes(newNotes, state.notesOrder, newState.settings.uncompletedTodosOnTop);
newState = Object.assign({}, state);
newState.notes = newNotes;
break;
case 'NOTES_DELETE':
var newNotes = [];
for (let i = 0; i < state.notes.length; i++) {
let f = state.notes[i];
if (f.id == action.noteId) continue;
newNotes.push(f);
}
newState = Object.assign({}, state);
newState.notes = newNotes;
break;
case 'FOLDERS_UPDATE_ALL':
newState = Object.assign({}, state);
newState.folders = action.folders;
break;
case 'TAGS_UPDATE_ALL':
newState = Object.assign({}, state);
newState.tags = action.tags;
break;
case 'FOLDERS_UPDATE_ONE':
var newFolders = state.folders.splice(0);
var found = false;
for (let i = 0; i < newFolders.length; i++) {
let n = newFolders[i];
if (n.id == action.folder.id) {
newFolders[i] = Object.assign(newFolders[i], action.folder);
found = true;
break;
}
}
if (!found) newFolders.push(action.folder);
newState = Object.assign({}, state);
newState.folders = newFolders;
break;
case 'FOLDER_DELETE':
var newFolders = [];
for (let i = 0; i < state.folders.length; i++) {
let f = state.folders[i];
if (f.id == action.folderId) continue;
newFolders.push(f);
}
newState = Object.assign({}, state);
newState.folders = newFolders;
break;
case 'SIDE_MENU_TOGGLE':
newState = Object.assign({}, state);
newState.showSideMenu = !newState.showSideMenu
break;
case 'SIDE_MENU_OPEN':
newState = Object.assign({}, state);
newState.showSideMenu = true
break;
case 'SIDE_MENU_CLOSE':
newState = Object.assign({}, state);
newState.showSideMenu = false
break;
case 'SYNC_STARTED':
newState = Object.assign({}, state);
newState.syncStarted = true;
break;
case 'SYNC_COMPLETED':
newState = Object.assign({}, state);
newState.syncStarted = false;
break;
case 'SYNC_REPORT_UPDATE':
newState = Object.assign({}, state);
newState.syncReport = action.report;
break;
case 'SEARCH_QUERY':
newState = Object.assign({}, state);
newState.searchQuery = action.query.trim();
break;
case 'SET_APP_STATE':
newState = Object.assign({}, state);
newState.appState = action.state;
break;
}
} catch (error) {
error.message = 'In reducer: ' + error.message + ' Action: ' + JSON.stringify(action);
throw error;
}
return newState;
}
export { reducer, defaultState };