Loading images on scroll

Better api
This commit is contained in:
Michał 2022-12-14 19:55:40 +00:00
parent 4279ebed00
commit 3f64c56ec8
9 changed files with 169 additions and 87 deletions

10
.gitignore vendored
View file

@ -1,5 +1,11 @@
# temporarily remove image folder
static/images
# Remove all development files
uploads/
# remove all PyCharm files
.idea
# remove all VSCode files
.vscode
# Byte-compiled / optimized / DLL files
__pycache__/

73
app.py
View file

@ -2,7 +2,6 @@ from flask import Flask, render_template, send_from_directory, abort, url_for, j
from werkzeug.utils import secure_filename
import os
# Get database stuff
DB_USER = os.environ.get('USERNAME')
DB_PASS = os.environ.get('PASSWORD')
@ -11,13 +10,12 @@ DB_PORT = os.environ.get('PORT')
DB = os.environ.get('DATABASE')
# Set flask config
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
IMAGE_DIR = os.path.join(BASE_DIR, 'static/images')
UPLOAD_FOLDER = os.path.join(BASE_DIR, 'uploads')
app = Flask(__name__)
app.config['IMAGE_DIR'] = IMAGE_DIR
app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
#
@ -27,31 +25,35 @@ app.config['IMAGE_DIR'] = IMAGE_DIR
def method_not_allowed(e):
error = '405'
msg = 'Method sussy wussy'
return render_template('error.html', error = error, msg = msg), 404
return render_template('error.html', error=error, msg=msg), 404
@app.errorhandler(404)
def page_not_found(e):
error = '404'
msg = 'Could not find what you need!'
return render_template('error.html', error = error, msg = msg), 404
return render_template('error.html', error=error, msg=msg), 404
@app.errorhandler(403)
def forbidden(e):
error = '403'
msg = 'Go away! This is no place for you!'
return render_template('error.html', error = error, msg = msg), 403
return render_template('error.html', error=error, msg=msg), 403
@app.errorhandler(410)
def gone(e):
error = '410'
msg = 'The page is no longer available! *sad face*'
return render_template('error.html', error = error, msg = msg), 410
return render_template('error.html', error=error, msg=msg), 410
@app.errorhandler(500)
def internal_server_error(e):
error = '500'
msg = 'Server died inside :c'
return render_template('error.html', error = error, msg = msg), 500
return render_template('error.html', error=error, msg=msg), 500
#
@ -59,33 +61,50 @@ def internal_server_error(e):
#
@app.route('/')
def home():
image_list = os.listdir(app.config['IMAGE_DIR'])
return render_template('home.html', images = image_list)
return render_template('home.html')
@app.route('/image/<id>')
def image(id):
@app.route('/image/<file_id>')
def image(file_id):
try:
id = int(id)
file_id = int(file_id)
except ValueError:
abort(404)
image_list = os.listdir(app.config['IMAGE_DIR'])
fileName = image_list[id]
file_list = os.listdir(os.path.join(app.config['UPLOAD_FOLDER'], 'original'))
file_name = file_list[file_id]
return render_template('image.html', fileName = fileName, id = id)
return render_template('image.html', fileName=file_name, id=file_id)
#
# METHODS
#
@app.route('/fileList', methods = ['GET'])
def imageList():
image_list = os.listdir(app.config['IMAGE_DIR'])
return jsonify(image_list)
@app.route('/fileList/<item_type>', methods=['GET'])
def image_list(item_type):
if request.method != 'GET':
abort(405)
@app.route('/file/<filename>', methods = ['GET'])
def pfp(filename):
if (request.method == 'GET'):
return send_from_directory(app.config['IMAGE_DIR'], filename)
else:
return None
item_type = secure_filename(item_type)
type_dir = os.path.join(app.config['UPLOAD_FOLDER'], item_type)
if not os.path.isdir(type_dir):
abort(404)
return jsonify(os.listdir(type_dir))
@app.route('/uploads/<item_type>/<file_id>', methods=['GET'])
def uploads(item_type, file_id):
if request.method != 'GET':
abort(405)
item_type = secure_filename(item_type)
type_dir = os.path.join(app.config['UPLOAD_FOLDER'], item_type)
if not os.path.isdir(type_dir):
abort(404)
file_id = secure_filename(file_id)
if not os.path.isfile(os.path.join(type_dir, file_id)):
abort(404)
return send_from_directory(type_dir, file_id)

View file

@ -39,7 +39,7 @@ nav {
box-sizing: border-box;
z-index: 2;
overflow: hidden;
transition: width 0.4s ease-in-out, background-color 0.3s ease-in-out;
transition: width 0.4s cubic-bezier(0.86, 0, 0.07, 1), background-color 0.3s ease-in-out;
}
nav:hover {
width: 25rem;
@ -100,13 +100,11 @@ main {
box-sizing: border-box;
}
main header {
margin: 0 0 -15rem 0;
margin: 0 0 -10vh 0;
padding: 0;
width: 100%;
height: 40vh;
background-color: #121212;
position: fixed;
top: 0;
box-sizing: border-box;
}
main header img {
@ -115,6 +113,7 @@ main header img {
left: 0;
width: 100%;
height: 100%;
filter: blur(0.5rem);
-o-object-fit: cover;
object-fit: cover;
}
@ -125,8 +124,6 @@ main header span {
width: 100%;
height: 100%;
background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0), #151515);
-webkit-backdrop-filter: blur(0.5rem);
backdrop-filter: blur(0.5rem);
z-index: 1;
}
@ -145,7 +142,7 @@ main header span {
opacity: 0;
z-index: 2;
cursor: pointer;
transition: all 0.2s ease-in-out;
transition: all 0.2s cubic-bezier(0.86, 0, 0.07, 1);
}
#topButton:hover {
background-color: #121212;
@ -153,17 +150,17 @@ main header span {
}
.app {
margin: 10rem 1rem 0 4.5rem;
margin: 0 0 0 3.5rem;
padding: 1rem;
width: auto;
min-height: calc(150vh - 10rem);
min-height: 90vh;
position: relative;
display: flex;
flex-direction: column;
gap: 1rem;
background-color: #151515;
color: #e8e3e3;
border-radius: 0.5rem 0.5rem 0 0;
border-radius: 8px 8px 0 0;
box-sizing: border-box;
z-index: 1;
overflow: unset;
@ -178,6 +175,29 @@ main header span {
color: #8C977D;
}
@-webkit-keyframes imgLoading {
0% {
background-position: 0% 50%;
}
50% {
background-position: 100% 50%;
}
100% {
background-position: 0% 50%;
}
}
@keyframes imgLoading {
0% {
background-position: 0% 50%;
}
50% {
background-position: 100% 50%;
}
100% {
background-position: 0% 50%;
}
}
.gallery {
margin: 0;
padding: 0;
@ -191,8 +211,11 @@ main header span {
padding: 0;
height: auto;
position: relative;
background-color: #121212;
border-radius: 0.25rem;
background: linear-gradient(-45deg, #151515, #0e0e0e, #151515);
background-size: 400% 400%;
border-radius: 4px;
-webkit-animation: imgLoading 10s ease infinite;
animation: imgLoading 10s ease infinite;
box-sizing: border-box;
overflow: hidden;
}
@ -216,7 +239,7 @@ main header span {
z-index: 1;
opacity: 0;
transform: scale(1.05);
transition: all 0.35s ease-in-out;
transition: all 0.5s cubic-bezier(0.79, 0.14, 0.15, 0.86);
}
.gallery .gallery__item .gallery__item-info h2 {
margin: 0;
@ -229,7 +252,7 @@ main header span {
text-overflow: ellipsis;
overflow: hidden;
opacity: 0;
transition: all 0.35s ease-in-out;
transition: all 0.2s ease-in-out;
}
.gallery .gallery__item .gallery__item-info p {
margin: 0;
@ -241,7 +264,7 @@ main header span {
text-overflow: ellipsis;
overflow: hidden;
opacity: 0;
transition: all 0.35s ease-in-out;
transition: all 0.2s ease-in-out;
}
.gallery .gallery__item .gallery__item-info:hover {
opacity: 1;
@ -264,7 +287,7 @@ main header span {
object-fit: cover;
-o-object-position: center;
object-position: center;
border-radius: 0.5rem;
border-radius: 4px;
}
.image__container {
@ -276,7 +299,7 @@ main header span {
position: sticky;
top: 0;
display: flex;
border-radius: 0.25rem;
border-radius: 4px;
background-color: #121212;
box-sizing: border-box;
}
@ -289,7 +312,7 @@ main header span {
object-fit: contain;
-o-object-position: center;
object-position: center;
border-radius: 0.25rem;
border-radius: 4px;
}
.image__info {
@ -299,7 +322,7 @@ main header span {
display: flex;
flex-direction: column;
background-color: #121212;
border-radius: 0.25rem;
border-radius: 4px;
box-sizing: border-box;
}
.image__info h2 {

View file

@ -1 +1 @@
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View file

@ -1,6 +1,7 @@
$black100: #151515;
$black200: #121212;
$black300: #101010;
$black400: #0e0e0e;
$white100: #e8e3e3;
@ -11,7 +12,7 @@ $green: #8C977D;
$blue: #8DA3B9;
$purple: #A988B0;
$rad: 0.5rem;
$rad: 8px;
$font-header: "Hubot-Sans", sans-serif;
$font-body: "Mona-Sans", sans-serif;
@ -66,7 +67,7 @@ nav {
box-sizing: border-box;
z-index: 2;
overflow: hidden;
transition: width 0.4s ease-in-out, background-color 0.3s ease-in-out;
transition: width 0.4s cubic-bezier(.86,0,.07,1), background-color 0.3s ease-in-out;
&:hover {
width: 25rem;
@ -148,15 +149,13 @@ main {
box-sizing: border-box;
header {
margin: 0 0 -15rem 0;
margin: 0 0 calc((10vh) * -1) 0;
padding: 0;
width: 100%;
height: 40vh;
background-color: $black200;
position: fixed;
top: 0;
box-sizing: border-box;
@ -168,6 +167,8 @@ main {
width: 100%;
height: 100%;
filter: blur(0.5rem);
object-fit: cover;
}
span {
@ -179,7 +180,6 @@ main {
height: 100%;
background-image: linear-gradient(to bottom, #00000000, rgba($black100, 1));
backdrop-filter: blur(0.5rem);
z-index: +1;
}
@ -208,7 +208,7 @@ main {
cursor: pointer;
transition: all 0.2s ease-in-out;
transition: all 0.2s cubic-bezier(.86,0,.07,1);
&:hover {
background-color: $black200;
@ -217,11 +217,11 @@ main {
}
.app {
margin: 10rem 1rem 0 4.5rem;
margin: 0 0 0 3.5rem;
padding: 1rem;
width: auto;
min-height: calc(150vh - 10rem);
min-height: 90vh;
position: relative;
@ -250,6 +250,18 @@ main {
}
}
@keyframes imgLoading {
0% {
background-position: 0% 50%;
}
50% {
background-position: 100% 50%;
}
100% {
background-position: 0% 50%;
}
}
.gallery {
margin: 0;
padding: 0;
@ -268,8 +280,10 @@ main {
position: relative;
background-color: $black200;
background: linear-gradient(-45deg, $black100, $black400, $black100);
background-size: 400% 400%;
border-radius: calc($rad / 2);
animation: imgLoading 10s ease infinite;
box-sizing: border-box;
overflow: hidden;
@ -301,7 +315,7 @@ main {
opacity: 0; // hide
transform: scale(1.05); // scale up
transition: all 0.35s ease-in-out;
transition: all 0.5s cubic-bezier(.79,.14,.15,.86);
h2 {
margin: 0;
@ -318,7 +332,7 @@ main {
overflow: hidden;
opacity: 0; // hide
transition: all 0.35s ease-in-out;
transition: all 0.2s ease-in-out;
}
p {
@ -335,7 +349,7 @@ main {
overflow: hidden;
opacity: 0; // hide
transition: all 0.35s ease-in-out;
transition: all 0.2s ease-in-out;
}
&:hover {
@ -364,7 +378,7 @@ main {
object-fit: cover;
object-position: center;
border-radius: $rad;
border-radius: calc($rad / 2);
}
}

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@ -5,28 +5,51 @@
<span></span>
</header>
<div class="app">
<h1 style="margin-bottom: 1rem">Gallery</h1>
<h1>Gallery</h1>
<div id="gallery" class="gallery"></div>
</div>
<script>
$.ajax({
url: '/fileList',
type: 'get',
success: function(response) {
for (var i = 0; i < response.length; i++) {
let imageList = [];
let imageIndex = 0;
function loadMore(startIndex, amount = 10) {
for (let i = startIndex; i < startIndex + amount; i++) {
if (i < imageList.length) {
loadImg(i, imageList[i]);
}
}
}
function loadImg(id, fileName) {
var imgDiv = `
<a class="gallery__item" href="/image/${i}">
<a class="gallery__item" href="/image/${id}">
<div class="gallery__item-info">
<p>${i}</p>\
<h2>${response[i]}</h2>
<p>${id}</p>\
<h2>${fileName}</h2>
</div>
<span class="gallery__item-filter"></span>
<img class="gallery__item-image" src="/file/${response[i]}" onload="imgFade(this)" style="display:none;"/>
<img class="gallery__item-image" src="/uploads/original/${fileName}" onload="imgFade(this)" style="display:none;">
</a>
`;
$(imgDiv).hide().appendTo('#gallery').fadeIn(250);
}
$.ajax({
url: '/fileList/original',
type: 'get',
success: function(response) {
imageList = response;
loadMore(0, 20);
imageIndex += 20;
}
});
$(window).scroll(function() {
if ($(window).height() + $(window).scrollTop() >= $(document).height() - 100) {
loadMore(imageIndex);
imageIndex += 10;
}
});
</script>

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@ -1,12 +1,9 @@
{% extends 'layout.html' %}
{% block content %}
<header>
<img src="/file/{{ fileName }}" alt="leaves"/>
<span></span>
</header>
<div class="app">
<div class="image__container">
<img class="image__item" src="/file/{{ fileName }}" onload="imgFade(this)" style="display:none;"/>
<img class="image__item" src="/uploads/original/{{ fileName }}" onload="imgFade(this)" style="display:none;"/>
</div>
<div class="image__info">
<h2>{{ fileName }}</h2>

View file

@ -50,7 +50,7 @@
}
function imgFade(obj) {
$(obj).fadeIn(1000);
$(obj).fadeIn(621);
}
</script>
</body>