I basically have a folder view structure, that each time I call grabs the value of the selected field and gets that specific folder data. I was wondering if there's a better way to do this by caching or something like that. So for example if I was to request that same folder it would be stored in memory, instead of having to make another get request.
var getFolder = function() {
if ($('.list-group-item:hover').css('margin-left') === '0px') {
$('.fold').remove();
}
var promises = [];
$('.list-group-item').css("background-color", ""); // clear last selected
$.get("/folder", {
folder: $('.list-group-item:hover').attr('title') //.clone().children().text()
}, function(data) {
var folders = data.CommonPrefixes; // folders
var jsonData = data.Contents; //json data
var selected = $('.list-group-item:hover').css("background-color", "rgb(0, 196, 255)"); // new selected color
var parFolder = parseInt($('.list-group-item:hover').css('margin-left'), 10);
var add = parFolder + 15;
var subFolder = add.toString() + 'px';
if (folders.length > 0) {
for (var k = 0; k < folders.length; k++) {
var value = folders[k].Prefix;
var displayVal = value.split('/').slice(-2).join("");
var book = "<li class='fold list-group-item' onclick='getFolder()' title='" + value + "'>" + "<span class='glyphicon glyphicon-book'></span>" + displayVal + "<span class='glyphicon glyphicon-remove-sign' onclick='deleteFldr()'></span>" + "</li>"
$(book).insertAfter(".list-group-item:hover").css('margin-left', subFolder);
}
}
if (jsonData.length > 0) {
for (var i = 0; i < jsonData.length; i++) {
var req = $.get('/fldrContents', {
contents: jsonData[i].Key
}, function(data) {
//var b = JSON.parse(data.body);
});
promises.push(req);
}
}
$.when.apply(null, promises).done(function(d) {
if ($('.dynamic')) {
$('.dynamic').remove();
}
for (var i = 0; i < promises.length; i++) {
var posTop;
var posLeft;
var z = JSON.parse(promises[i].responseText);
console.log(z)
var fileURL = z.path;
var lastChar = fileURL.charAt(fileURL.length - 1);
if (lastChar === '/') {
continue;
}
$('.description').css('display', 'none')
var fileBody = JSON.parse(z.body);
var website = fileBody.website;
var title = fileBody.title;
var description = fileBody.description;
var created = fileBody.created;
var canvasData = fileBody.canvas;
// console.log(canvasData)
if (fileBody.hasOwnProperty('description')) {
$('.description').css('display', 'block')
}
if (fileBody.hasOwnProperty('position')) {
var posTop = fileBody.position.top;
var posLeft = fileBody.position.left;
$('dynamic').css({
'top': posTop,
'left': posLeft
});
$(".static").append('<div class="dynamic col-md-6" style="top:' + posTop + 'px;left:' + posLeft + 'px">' +
'<div class="panel">' +
'<canvas id="canvas"></canvas>' +
'<div class="panel-body">' +
'<a href="' + website + '" target="_blank" class="title" title="Go to ' + website + '">' + title + '</a>' +
'<span class="website-edit"></span>' +
'<div class="description">' + description + '</div>' +
'</div>' +
'<div class="panel-footer">' +
'<span class="glyphicon glyphicon-bookmark" title="' + fileURL + '"></span>' +
'<span class="glyphicon glyphicon-time" title="' + created + '"></span>' +
'<span class="glyphicon glyphicon-edit" title="Edit this bookmark" onclick="edit()"></span>' +
'<span class="delete glyphicon glyphicon-remove-sign" title="Delete this bookmark" onclick="deleteBookmark()"></span>' +
'</div>' +
'</div>' +
'</div>');
}
if (!fileBody.hasOwnProperty('position')) {
$(".static").append('<div class="dynamic col-md-6">' +
'<div class="panel">' +
'<canvas id="canvas"></canvas>' +
'<div class="panel-body">' +
'<a href="' + website + '" target="_blank" class="title" title="Go to ' + website + '">' + title + '</a>' +
'<span class="website-edit"></span>' +
'<div class="description">' + description + '</div>' +
'</div>' +
'<div class="panel-footer">' +
'<span class="glyphicon glyphicon-bookmark" title="' + fileURL + '"></span>' +
'<span class="glyphicon glyphicon-time" title="' + created + '"></span>' +
'<span class="glyphicon glyphicon-edit" title="Edit this bookmark" onclick="edit()"></span>' +
'<span class="delete glyphicon glyphicon-remove-sign" title="Delete this bookmark" onclick="deleteBookmark()"></span>' +
'</div>' +
'</div>' +
'</div>')
}
if (fileBody.hasOwnProperty('canvas')) {
var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');
canvasData = new Image();
canvasData.src = promises[i];
}
$('.dynamic').draggable({
handle: "div",
stop: function(event, ui) {
var changedFile = $(this).children('.panel').children('.panel-footer').children('.glyphicon-bookmark').attr('title');
var pos = ui.position
var title = $(this).children('.panel').children('.panel-body').children('a.title').text();
var description = $(this).children('.panel').children('.panel-body').children('.description').text();
var website = $(this).children('.panel').children('.panel-body').children('a.title').attr('href');
var created = $(this).children('.panel').children('.panel-footer').children('.glyphicon-time').attr('title');
var canvas = $(this).children('.panel').children('#canvas') // fix this
var canvasData = canvas[0].toDataURL("image/png");
console.log(created + ' ' + title + ' ' + description + ' ' + canvasData)
$.post('/cssPosition', {
website: website,
title: title,
description: description,
position: pos,
folder: changedFile,
created: created,
canvas: canvasData
}, function() {
});
//location.reload();
}
});
}
});
});
}
cache: truein the ajax options. No need to roll your own – Flambino Jun 28 at 15:17cache: truebasically allows the browser to use its cache. A request is still created (and shows up in the dev tools), but it may never leave your computer if the browser has a cache - and your server is saying that it's ok to cache responses. Again, the console/network log in the dev tools will tell you what the request did. You can still make your own cache if you need to, but that's a question for, say, StackOverflow. This site is for reviewing existing code, so we can't review code you haven't written. – Flambino Jun 28 at 16:34