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>

1 files changed, 91 insertions, 0 deletions

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)
+    }
+}