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/*
* Copyright (C) 2018 The Qt Company Ltd.
* Copyright (C) 2017 Konsulko Group
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import QtQuick 2.6
import QtWebSockets 1.0
WebSocket {
id: root
active: true
url: bindingAddress
property string statusString: "waiting..."
property string apiString: "mediascanner"
property var verbs: []
property string payloadLength: "9999"
readonly property var msgid: {
"call": 2,
"retok": 3,
"reterr": 4,
"event": 5
}
signal added(var media)
signal removed(var index)
property var cache: []
function add(files) {
for (var i = 0; i < files.length; i++) {
var media = files[i]
if (cache.indexOf(media.path) < 0) {
root.added(media)
cache.push(media.path)
}
}
}
function remove(prefix) {
for (var i = cache.length - 1; i > -1; i--) {
var media = cache[i]
if (media.substr(0, prefix.length) === prefix) {
root.removed(i)
cache.splice(i, 1)
}
}
}
onTextMessageReceived: {
console.debug("Raw response: " + message)
var json = JSON.parse(message)
var request = json[2].request
var response = json[2].response
// console.debug("response: " + JSON.stringify(response))
switch (json[0]) {
case msgid.call:
break
case msgid.retok:
root.statusString = request.status
var verb = verbs.shift()
if (verb === "media_result") {
root.add(response.Media)
}
break
case msgid.reterr:
root.statusString = "Bad return value, binding probably not installed"
var verb = verbs.shift()
break
case msgid.event:
var payload = JSON.parse(JSON.stringify(json[2]))
var event = payload.event
if (event == "mediascanner/media_added") {
console.debug("Media playlist is updated")
root.add(json[2].data.Media)
} else if (event == "mediascanner/media_removed") {
root.remove(json[2].data.Path)
}
break
}
}
onStatusChanged: {
switch (status) {
case WebSocket.Open:
console.debug("onStatusChanged: Open")
sendSocketMessage("subscribe", { value: "media_added" })
sendSocketMessage("subscribe", { value: "media_removed" })
sendSocketMessage("media_result", { type: 'video' })
break
case WebSocket.Error:
root.statusString = "WebSocket error: " + root.errorString
break
}
}
function sendSocketMessage(verb, parameter) {
var requestJson = [ msgid.call, payloadLength, apiString + '/'
+ verb, parameter ]
console.debug("sendSocketMessage: " + JSON.stringify(requestJson))
verbs.push(verb)
sendTextMessage(JSON.stringify(requestJson))
}
}
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