navigation: gps: add gps geolocation support

Use GPS binding to get current location for navigation

Bug-AGL: SPEC-1068
Change-Id: Ie708117499b342f86c60674c83f0222857a67bee
Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>

4 files changed, 110 insertions, 14 deletions

diff --git a/app/api/GPS.qml b/app/api/GPS.qml
new file mode 100644
index 0000000..8a2ebb9
--- /dev/null
+++ b/app/api/GPS.qml
@@ -0,0 +1,89 @@
+/*
+ * 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 QtPositioning 5.5
+import QtWebSockets 1.0
+
+WebSocket {
+    id: root
+    active: true
+    url: bindingAddress
+
+    property string statusString: "waiting..."
+    property string apiString: "gps"
+    property string payloadLength: "9999"
+
+    property bool loop_state: false
+    property bool running: false
+
+    readonly property var msgid: {
+        "call": 2,
+        "retok": 3,
+        "reterr": 4,
+        "event": 5
+    }
+
+    onTextMessageReceived: {
+        var json = JSON.parse(message)
+        //console.debug("Raw response: " + 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:
+                break
+            case msgid.reterr:
+                root.statusString = "Bad return value, binding probably not installed"
+                break
+            case msgid.event:
+                var payload = JSON.parse(JSON.stringify(json[2]))
+                var event = payload.event
+                if (event == "gps/location") {
+                    var latitude = json[2].data.latitude
+                    var longitude = json[2].data.longitude
+                    var location = QtPositioning.coordinate(latitude, longitude)
+                    if (map.followme || !map.location) {
+                        map.center = location
+                    }
+                    map.location = location
+                }
+                break
+        }
+    }
+
+    onStatusChanged: {
+        switch (status) {
+            case WebSocket.Open:
+            console.debug("onStatusChanged: Open")
+            sendSocketMessage("subscribe", { value: "location" })
+            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))
+        sendTextMessage(JSON.stringify(requestJson))
+    }
+}
diff --git a/app/map/MapComponent.qml b/app/map/MapComponent.qml
index b4bb330..ce669ff 100644
--- a/app/map/MapComponent.qml
+++ b/app/map/MapComponent.qml
@@ -38,7 +38,9 @@
 **
 ****************************************************************************/
 import QtQuick 2.5
+import QtQuick.Layouts 1.3
 import QtQuick.Controls 1.4
+import QtQuick.Extras 1.4
 import QtLocation 5.6
 import QtPositioning 5.5
 import "../helper.js" as Helper
@@ -267,20 +269,17 @@ Map {
     // Enable pan, flick, and pinch gestures to zoom in and out
     gesture.acceptedGestures: MapGestureArea.PanGesture | MapGestureArea.FlickGesture | MapGestureArea.PinchGesture
     gesture.flickDeceleration: 3000
-    gesture.enabled: true
+    gesture.enabled: !map.followme
 //! [mapnavigation]
     focus: true
     onCopyrightLinkActivated: Qt.openUrlExternally(link)
 
     onCenterChanged:{
         scaleTimer.restart()
-        if (map.followme)
-            if (map.center != positionSource.position.coordinate) map.followme = false
     }
 
     onZoomLevelChanged:{
         scaleTimer.restart()
-        if (map.followme) map.center = positionSource.position.coordinate
     }
 
     onWidthChanged:{
@@ -324,19 +323,9 @@ Map {
     Binding {
         target: map
         property: 'center'
-        value: positionSource.position.coordinate
         when: followme
     }*/
 
-    PositionSource{
-        id: positionSource
-        active: followme
-
-        onPositionChanged: {
-            map.center = positionSource.position.coordinate
-        }
-    }
-
     MapQuickItem {
         id: locationPoint
         sourceItem: Rectangle { width: 14; height: 14; color: "#e41e25"; border.width: 2; border.color: "white"; smooth: true; radius: 7 }
@@ -368,6 +357,17 @@ Map {
         width: 300
         height: 300
 
+        ToggleButton {
+            id: followme
+            text: "GeoLocation Pan"
+            checked: map.followme
+            Layout.fillWidth: true
+            Layout.fillHeight: true
+            onClicked: {
+                map.followme = !map.followme
+            }
+        }
+
         Button {
             text: "Lookup Route"
             Layout.fillWidth: true
diff --git a/app/mapviewer.qml b/app/mapviewer.qml
index a2d5c36..cada08b 100644
--- a/app/mapviewer.qml
+++ b/app/mapviewer.qml
@@ -48,6 +48,7 @@ import AGL.Demo.Controls 1.0
 import "map"
 import "menus"
 import "helper.js" as Helper
+import "api" as API
 
 ApplicationWindow {
     id: appWindow
@@ -60,6 +61,11 @@ ApplicationWindow {
     property variant toCoordinate: QtPositioning.coordinate(59.9645, 10.671)
     //! [routecoordinate]
 
+    API.GPS {
+        id: gps
+        url: bindingAddress
+    }
+
     function createMap(provider)
     {
         var plugin
diff --git a/app/mapviewer.qrc b/app/mapviewer.qrc
index a85289e..4745075 100644
--- a/app/mapviewer.qrc
+++ b/app/mapviewer.qrc
@@ -1,6 +1,7 @@
 <RCC>
     <qresource prefix="/">
         <file>mapviewer.qml</file>
+	<file>api/GPS.qml</file>
         <file>map/MapComponent.qml</file>
         <file>map/Marker.qml</file>
         <file>map/PolylineItem.qml</file>