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This commit is contained in:
Gregor Wüst 2020-06-17 15:07:16 +02:00
parent 20287ddfbc
commit 789469e89a
1 changed files with 161 additions and 90 deletions
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197
scripts/notes_app.js
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@ -1,52 +1,64 @@
$(document).ready(function(){
$("#addNoteDiv").on('click', function() {
// Listener für den Plus Button zum hinzufügen von Note Forms.
console.log("Add")
createForm();
})
$('#allNotesDiv').on('click', 'button', async function() {
//
// Listener für den Save Button zum speichern von Note Forms.
console.log("Save")
console.log(this)
//
let buttonId = (this.id).split("_")[1];
let type = (this.id).split("_")[0];
try {
if (type == 'saveNoteButton'){
// Speichern einer neuen Note.
await saveNoteObject(buttonId);
} else if (type == 'editNoteButton'){
// Editieren einer gespeicherten Note.
await saveNoteObject(buttonId, true);
}
//
console.log(buttonId)
//
} catch(err){
alert(err);
}
})
$('#noteStorage').on('click', 'button', async function() {
//
// Listener für den Delete Button zum Löschen einer Note aus dem Note Browser und Local Storage.
console.log("Delete")
console.log(this)
//
let buttonId = (this.id).split("_")[1];
//
console.log(buttonId)
//
try {
await removeBrowserItem(buttonId);
} catch(err) {
alert(err);
}
})
$("#refreshButton").on('click', async function() {
//
// Listener für den Refresh Button zum aktualisieren der gespeicherten Notes.
console.log("Refresh")
//
createLoadingSign(id="", append="noteStorage");
enableLoadingSign(id="");
await sleep(2000);
disableLoadingSign(id="");
try {
await refreshBrowser();
} catch(err){
alert(err);
}
})
})
@ -54,22 +66,33 @@ let id=1;
function createForm(){
// Erstellt eine NoteForm und initialisiert die OnClick-Listener auf den Buttons der Form
id++;
//
console.log("createForm() "+id)
//
let wrapper = document.createElement("div");
wrapper.setAttribute('id', "note"+id);
wrapper.style.margin = '2.5px';
let inputsWrapper = document.createElement("div");
inputsWrapper.setAttribute('class', "noteDiv");
let inputDiv = document.createElement("div");
let input = document.createElement("input");
let deleteButton = document.createElement('button');
input.setAttribute('type', "text");
input.setAttribute('name',"noteTitle");
input.setAttribute('id', "inputTitle"+id);
input.setAttribute('placeholder', "Enter title...");
input.style.marginBottom='5px';
deleteButton.style.marginLeft = '2px';
deleteButton.innerHTML = "X";
deleteButton.setAttribute('id', "deleteForm_" + id);
deleteButton.setAttribute('onClick', "deleteForm(this.id)");
deleteButton.setAttribute('class', "right");
inputDiv.appendChild(input);
inputDiv.appendChild(deleteButton);
let textAreaDiv = document.createElement("div");
let textarea = document.createElement("textarea");
@ -86,7 +109,7 @@ function createForm(){
saveNoteButton.setAttribute('id',"saveNoteButton_"+id);
saveNoteButton.innerHTML = 'Save';
inputsWrapper.appendChild(input);
inputsWrapper.appendChild(inputDiv);
inputsWrapper.appendChild(textAreaDiv);
inputsWrapper.appendChild(saveNoteButton);
wrapper.appendChild(inputsWrapper);
@ -94,24 +117,41 @@ function createForm(){
document.getElementById('allNotesDiv').appendChild(wrapper);
}
function deleteForm(idName){
// Aktiviert durch OnClickListener auf dem X-Button innerhalb der Form zum Schließen der Form
console.log("deleteForm() " + id);
id = idName.split("_")[1];
document.getElementById("note"+id).remove();
}
function createFormWithSavedContent(item, id){
//
// Holt eine gespeicherte Form aus dem Speicher und erstellt erneut eine NoteForm und initialisiert die OnClick-Listener auf den Buttons der Form
console.log("createFormWithSavedContent() "+ id)
console.log(item.title);
console.log(item.text);
//
let wrapper = document.createElement("div")
wrapper.setAttribute('id', "note"+id)
let inputsWrapper = document.createElement("div")
inputsWrapper.setAttribute('class', "noteDiv");
let inputDiv = document.createElement("div");
let input = document.createElement("input");
let deleteButton = document.createElement('button');
input.setAttribute('type', "text");
input.setAttribute('name',"noteTitle");
input.setAttribute('id', "inputTitle"+id);
input.setAttribute('value', item.title);
input.style.marginBottom='5px';
deleteButton.style.marginLeft = '2px';
deleteButton.innerHTML = "X";
deleteButton.setAttribute('id', "deleteForm_" + id);
deleteButton.setAttribute('onClick', "deleteForm(this.id)");
inputDiv.appendChild(input);
inputDiv.appendChild(deleteButton);
let textAreaDiv = document.createElement("div");
let textarea = document.createElement("textarea");
@ -129,7 +169,7 @@ function createFormWithSavedContent(item, id){
editNoteButton.setAttribute('id',"editNoteButton_"+id);
editNoteButton.innerHTML = 'Save';
inputsWrapper.appendChild(input);
inputsWrapper.appendChild(inputDiv);
inputsWrapper.appendChild(textAreaDiv);
inputsWrapper.appendChild(editNoteButton);
wrapper.appendChild(inputsWrapper);
@ -140,6 +180,12 @@ function createFormWithSavedContent(item, id){
let ctr;
async function sleep(ms) {
// Best Practice Variante zum pausieren von Code
// Soll hier Prozesse simulieren die bei synchronem Code zu I/O-Blocking führen würden
console.log("sleep() " + ms);
try {
return new Promise(resolve => setTimeout(resolve, ms));
}
@ -149,21 +195,28 @@ async function sleep(ms) {
}
async function removeNote(id){
// Löscht eine Note aus dem Note Browser
console.log("removeNote() " + id);
return new Promise((resolve, reject) => {
try {
return new Promise(resolve => {
localStorage.removeItem('noteObj' + id);
removeBrowserItem(id);
resolve();
} catch(err) {
reject(err);
}
});
}
catch (alert) {
return alert(alert);
}
}
async function saveNote(id){
console.log("saveNote() " + id);
return new Promise((resolve, reject) => {
try {
return new Promise(resolve => {
let noteTitle = document.getElementById('inputTitle' + id).value;
let noteText = document.getElementById('noteText' + id).value;
let noteObj = {
@ -174,16 +227,18 @@ async function saveNote(id){
let noteObj_serialized = JSON.stringify(noteObj); //stringify noteObj so it is displayed properly when set to local Storage
localStorage.setItem("noteObj" + id, noteObj_serialized);
resolve(noteObj);
} catch(err) {
reject(err);
}
});
}
catch (alert) {
return alert(alert);
}
}
async function refreshBrowser(){
console.log("refreshBrowser()");
return new Promise((resolve, reject) => {
try {
return new Promise(resolve => {
let noteStorage = [];
let keys = Object.keys(localStorage);
let i = keys.length;
@ -196,18 +251,16 @@ async function refreshBrowser(){
createBrowserItem(JSON.parse(element));
});
resolve();
} catch(err) {
reject(err);
}
});
}
catch (alert) {
return alert(alert);
}
}
async function saveNoteObject(id, overwrite=false){
//
console.log("saveNoteObject() "+id)
console.log(id)
//
console.log("saveNoteObject() " + id + " " + overwrite);
createLoadingSign(id, append="note")
enableLoadingSign(id);
await sleep(10000) //sleep() simulates the delay that would occur when there is a remote server access or similar,
@ -215,24 +268,30 @@ async function saveNoteObject(id, overwrite=false){
//the leftover code of the async function is executed after the delay
disableLoadingSign(id);
try {
if (overwrite == true){
await removeNote(id);
}
let obj = await saveNote(id);
createBrowserItem(obj);
} catch(err){
alert(err)
}
document.getElementById("note"+id).remove();
}
function enableLoadingSign(id){
console.log("id:"+id);
console.log("enableLoadingSign() " + id);
let target = 'loadSign'+id;
console.log("enableLoadingSign() "+id)
document.getElementById(target).style.display = "block";
}
function disableLoadingSign(id){
console.log("id:"+id);
console.log("disableLoadingSign() " + id);
let target = 'loadSign'+id;
let sign = document.getElementById(target);
sign.style.display = "none";
@ -240,11 +299,11 @@ function disableLoadingSign(id){
}
function createLoadingSign(id, append){
console.log("id:"+id);
console.log("createLoadingSign() " + id);
let target = 'loadSign'+id;
let appendTo = append+id;
console.log(appendTo);
console.log("createLoadingSign() "+id)
let loadingSign = document.createElement('div');
let loadingSignWrapper = document.createElement('div');
loadingSign.setAttribute('class', 'loader')
@ -254,7 +313,9 @@ function createLoadingSign(id, append){
}
function createBrowserItem(item){
console.log(item);
console.log("createBrowserItem() " + item);
let wrapperDiv = document.createElement('div');
let browserItem = document.createElement('div');
let deleteButton = document.createElement('button');
@ -271,39 +332,49 @@ function createBrowserItem(item){
}
async function removeBrowserItem(id){
try {
return new Promise(resolve => {
console.log("removeBrowserItem() " + id);
return new Promise((resolve, reject) => {
try {
localStorage.removeItem('noteObj' + id);
document.getElementById("browserItem_" + id).remove();
document.getElementById("deleteItem_" + id).remove();
resolve();
} catch(err) {
reject(err);
}
});
}
catch (alert) {
return alert(alert);
}
}
async function getItemFromStorage(idTmp){
return new Promise(resolve => {
console.log("getItemFromStorage() " + idTmp);
return new Promise((resolve, reject) => {
try {
let item = JSON.parse(localStorage.getItem('noteObj'+idTmp));
console.log("in promise "+item);
resolve(item);
} catch (err) {
reject(err);
}
});
}
async function getSavedNote(id){
console.log("getSavedNote() "+ id);
createLoadingSign("", "allNotesDiv");
enableLoadingSign("");
await sleep(5000);
disableLoadingSign("");
console.log("id before split " + id);
let idTmp = id.split("_")[1];
console.log("idTmp " +idTmp);
try {
let item = await getItemFromStorage(idTmp);
console.log(item);
createFormWithSavedContent(item, idTmp);
} catch(err) {
alert(err)
}
}