Dial and hangup from a voice call using the dial pad

Adds support for initiating and hanging up a voice call from the
phone app dial pad. This support leverages the basic telephony
binder API and pulseaudio as an ofono agent.

AGL-Bug: SPEC-597
Change-Id: I94e8c64a76164f04c6573d7126a8cc725b3c679d
Signed-off-by: Matt Porter <mporter@konsulko.com>

3 files changed, 100 insertions, 15 deletions

diff --git a/app/Dialer.qml b/app/Dialer.qml
index 8937f0d..49495b3 100644
--- a/app/Dialer.qml
+++ b/app/Dialer.qml
@@ -20,10 +20,16 @@ import QtQuick.Controls 2.0
 import QtMultimedia 5.5
 import AGL.Demo.Controls 1.0
 import 'models'
+import 'api' as API
 
 Item {
     id: root
 
+    API.Telephony {
+	    id: telephony
+	    url: bindingAddress
+    }
+
     signal showContacts
     function call(contact) {
         name.text = contact.name
@@ -106,19 +112,6 @@ Item {
             offImage: './images/HMI_Phone_Call.svg'
             opacity: number.text.length > 0 ? 1 : 0.25
 
-            Loader {
-                id: ringtone
-                active: false
-                sourceComponent: Component {
-                    SoundEffect {
-                        loops: SoundEffect.Infinite
-                        source: './Phone.wav'
-                        category: 'phone'
-                        Component.onCompleted: play()
-                    }
-                }
-            }
-
             onCheckedChanged: {
                 if (checked) {
                     if (number.text.length === 0) {
@@ -130,11 +123,11 @@ Item {
                     if (contact.name === '')
                         contact.name = 'Unknown'
                     history.insert(0, contact)
-                    ringtone.active = true
+		    telephony.dial(number.text)
                 } else {
                     name.text = ''
                     number.text = ''
-                    ringtone.active = false
+		    telephony.hangup()
                 }
             }
         }
diff --git a/app/api/Telephony.qml b/app/api/Telephony.qml
new file mode 100644
index 0000000..25af055
--- /dev/null
+++ b/app/api/Telephony.qml
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2016 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: "telephony"
+    property var verbs: []
+    property string payloadLength: "9999"
+
+    readonly property var msgid: {
+        "call": 2,
+        "retok": 3,
+        "reterr": 4,
+        "event": 5
+    }
+
+    onTextMessageReceived: {
+        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 == "dial") {
+                    console.debug("Dial response")
+                } else if (verb == "hangup") {
+                    console.debug("Hangup response")
+                }
+                break
+            case msg.reterr:
+                root.statusString = "Bad return value, binding probably not installed"
+                break
+            case MessageId.event:
+                break
+        }
+    }
+
+    onStatusChanged: {
+        switch (status) {
+            case WebSocket.Open:
+                console.debug("onStatusChanged: Open")
+                break
+            case WebSocket.Error:
+                root.statusString = "WebSocket error: " + root.errorString
+                break
+        }
+    }
+
+    function sendSocketMesage(verb, parameter) {
+        var requestJson = [ msgid.call, payloadLength, apiString + '/' + verb, parameter ]
+        console.debug("sendSocketMessage: " + JSON.stringify(requestJson))
+        verbs.push(verb)
+        sendTextMessage(JSON.stringify(requestJson))
+    }
+
+    function dial(number) {
+        console.debug("Dialing " + number)
+        var parameterJson = { value: number }
+        sendSocketMesage("dial", parameterJson)
+    }
+
+    function hangup() {
+        var parameterJson = 'None'
+        sendSocketMesage("hangup", parameterJson)
+    }
+}
diff --git a/app/phone.qrc b/app/phone.qrc
index 50b3140..fccf1c8 100644
--- a/app/phone.qrc
+++ b/app/phone.qrc
@@ -2,6 +2,7 @@
     <qresource prefix="/">
         <file>Phone.qml</file>
         <file>Dialer.qml</file>
+        <file>api/Telephony.qml</file>
         <file>models/CallHistoryModel.qml</file>
         <file>models/ContactsModel.qml</file>
         <file>models/qmldir</file>