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Sockets

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jh 2019-09-13 18:56:38 -07:00
commit 9ed85c4c9a
3 changed files with 54 additions and 33 deletions
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34
flaskr/app.py
View file

@ -1,6 +1,7 @@
from pathlib import Path
from flask import Flask, send_file, Response, render_template, render_template_string, request, g
# from flask_socketio import SocketIO
from flask_socketio import SocketIO
def create_flask_app(s2c, c2s, s2flask, args):
@ -42,16 +43,23 @@ def create_flask_app(s2c, c2s, s2flask, args):
request.environ.get('werkzeug.server.shutdown')()
return '', 204
@app.route('/', methods=['GET', 'POST'])
@app.route('/update', methods=['POST'])
def update():
send(c2s, 'update')
return '', 204
@app.route('/next_preview', methods=['POST'])
def next_preview():
send(c2s, 'next_preview')
return '', 204
@app.route('/change_history_range', methods=['POST'])
def change_history_range():
send(c2s, 'change_history_range')
return '', 204
@app.route('/')
def index():
if request.method == 'POST':
if 'update' in request.form:
send_and_wait(c2s, 'update')
elif 'next_preview' in request.form:
send_and_wait(c2s, 'next_preview')
elif 'change_history_range' in request.form:
send_and_wait(c2s, 'change_history_range')
# return '', 204
return render_template('index.html')
# @app.route('/preview_image')
@ -62,7 +70,11 @@ def create_flask_app(s2c, c2s, s2flask, args):
def preview_image():
return send_file(preview_file, mimetype='image/jpeg', cache_timeout=-1)
return app
socketio = SocketIO(app)
@socketio.on('connect')
def connect():
pass
return socketio, app

47
flaskr/templates/index.html
View file

@ -6,40 +6,49 @@
<script src="https://code.jquery.com/jquery-3.4.1.min.js"
integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo="
crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/2.2.0/socket.io.js"
integrity="sha256-yr4fRk/GU1ehYJPAs8P4JlTgu0Hdsp4ZKrx8bDEDC3I="
crossorigin="anonymous"></script>
<title>Flask Server Demonstration</title>
<script type="text/javascript">
$(function() {
$('button#save').click(function() {
$.post('/save');
$.post("{{ url_for('save') }}");
});
$('button#exit').click(function() {
$.post('/exit');
$.post("{{ url_for('exit') }}");
});
// $('button#update').click(function() {
// $.post('/update');
// });
//
// $('button#next_preview').click(function() {
// $.post('/next_preview');
// });
//
// $('button#change_history_range').click(function() {
// $.post('/change_history_range');
// });
$('button#update').click(function() {
$.post("{{ url_for('update') }}");
});
$('button#next_preview').click(function() {
$.post("{{ url_for('next_preview') }}");
});
$('button#change_history_range').click(function() {
$.post("{{ url_for('change_history_range') }}");
});
const socket = io.connect('127.0.0.1:5000');
socket.on('preview', function() {
console.log('new preview!');
$('img#preview').src = "{{ url_for('preview_image') }}?random="+new Date().getTime();
});
});
</script>
</head>
<body>
<h1>Flask Server Demonstration</h1>
<form action="/" method="post">
<div>
<button class='btn btn-default' id='save'>Save</button>
<button class='btn btn-default' id='exit'>Exit</button>
<button class='btn btn-default' id='update' name="update" value="update">Update</button>
<button class='btn btn-default' id='next_preview' name="next_preview" value="next_preview">Next preview</button>
<button class='btn btn-default' id='change_history_range' name="change_history_range" value="change_history_range">Change History Range</button>
</form>
<img src="{{ url_for('preview_image') }}">
<button class='btn btn-default' id='update'>Update</button>
<button class='btn btn-default' id='next_preview'>Next preview</button>
<button class='btn btn-default' id='change_history_range'>Change History Range</button>
</div>
<img id='preview' src="{{ url_for('preview_image') }}">
</body>
</html>

6
mainscripts/FlaskTrainer.py
View file

@ -296,8 +296,8 @@ def main(args, device_args):
e.wait() #Wait for inital load to occur.
flask_app = create_flask_app(s2c, c2s, s2flask, args)
flask_t = threading.Thread(target=flask_app.run, kwargs={'debug': True, 'use_reloader': False})
socketio, flask_app = create_flask_app(s2c, c2s, s2flask, args)
flask_t = threading.Thread(target=socketio.run, args=(flask_app,), kwargs={'debug': True, 'use_reloader': False})
flask_t.start()
wnd_name = "Training preview"
@ -366,7 +366,7 @@ def main(args, device_args):
preview_file = str(model_path / filename)
cv2.imwrite(preview_file, preview_pane_image)
s2flask.put({'op': 'show'})
# socketio.emit('some event', {'data': 42})
socketio.emit('preview', {})
# cv2.imshow(wnd_name, preview_pane_image)
is_showing = True