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README.md

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+# QField Geocoder Addresses Plugin
+
+This [QField](https://github.com/opengisch/QField/) plugin search addresses and center to current map.

main.qml

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+import QtQuick
+import QtQuick.Controls
+
+import org.qfield
+import org.qgis
+import Theme
+
+import "qrc:/qml" as QFieldItems
+
+Item {
+  id: plugin
+
+  property var mainWindow: iface.mainWindow()
+  property var mapCanvas: iface.findItemByObjectName('mapCanvas')
+  property var overlayFeatureFormDrawer: iface.findItemByObjectName('overlayFeatureFormDrawer')
+  property var locatorItem: iface.mainWindow().contentItem.children[4].children[9]
+  property var searchFieldRect: iface.mainWindow().contentItem.children[4].children[9].children[0]
+  property var resultBox: iface.mainWindow().contentItem.children[4].children[9].children[5]
+  property var geommetryHightLigth: iface.findItemByObjectName('mapCanvas').children[15]
+
+  Component.onCompleted: {
+    locatorAddressItem.parent = locatorItem
+  }
+
+  Rectangle {
+    id: locatorAddressItem
+    z: 1
+    width: searchFieldRect.width - 24
+    height: searchFieldRect.visible ? 30+32 : 0
+    anchors.top: resultBox.bottom
+    anchors.left: searchFieldRect.left
+    anchors.topMargin: resultBox.height == 0 ? 24 : 0
+    color: Theme.mainBackgroundColor
+    visible: searchFieldRect.visible && searchFieldRect.children[0].displayText !== ''
+    clip: true
+
+    Rectangle {
+      id:rectTitle
+      height:30
+      width:parent.width
+      anchors.top:parent.top
+      color: Theme.mainColor
+      opacity: 0.95
+
+      Text {
+        id: nameCell
+        anchors.left: parent.left
+        anchors.right: parent.right
+        text: 'Search for location address'
+        leftPadding: 5
+        topPadding: 8
+        font.bold: false
+        font.pointSize: Theme.resultFont.pointSize
+        color: "white"
+        elide: Text.ElideRight
+        horizontalAlignment: Text.AlignLeft
+      }
+    }
+    Rectangle {
+      anchors.left: parent.left
+      anchors.top: rectTitle.bottom
+      height:32
+      width:parent.width
+      color: Theme.mainBackgroundColor
+
+      Text {
+        id: addressCell
+        anchors.left: parent.left
+        anchors.right: parent.right
+        text: 'Got to '+ searchFieldRect.children[0].displayText + ' location'
+        leftPadding: 5
+        topPadding: 8
+        font.bold: false
+        font.pointSize: Theme.resultFont.pointSize
+        color: Theme.mainTextColor
+      }
+    }
+
+    MouseArea {
+      id: mouseArea
+      anchors.left: parent.left
+      anchors.top: parent.top
+      anchors.bottom: parent.bottom
+      anchors.right: parent.right
+
+      onClicked: {
+        fetchGeocoder(searchFieldRect.children[0].displayText)
+      }
+    }
+  }
+
+  function fetchGeocoder(location)
+  {
+    let request = new XMLHttpRequest();
+
+    request.onreadystatechange = function() {
+    if (request.readyState === XMLHttpRequest.DONE)
+    {
+      var responseObject = JSON.parse(request.response)
+      for (const obj of responseObject) {
+        var displayPoint = GeometryUtils.reprojectPoint(GeometryUtils.point(obj.lon, obj.lat), CoordinateReferenceSystemUtils.wgs84Crs(), mapCanvas.mapSettings.destinationCrs);
+        // mapCanvas.mapSettings.setCenter(displayPoint)
+        var temp = [GeometryUtils.reprojectPoint(GeometryUtils.point(obj.boundingbox[2], obj.boundingbox[0]), CoordinateReferenceSystemUtils.wgs84Crs(), mapCanvas.mapSettings.destinationCrs),
+        GeometryUtils.reprojectPoint(GeometryUtils.point(obj.boundingbox[3], obj.boundingbox[1]), CoordinateReferenceSystemUtils.wgs84Crs(), mapCanvas.mapSettings.destinationCrs)
+      ]
+      mapCanvas.mapSettings.setExtentFromPoints(temp, 125, true)
+      locatorItem.state = 'off'
+
+      if (obj.geojson && obj.geojson.type == 'Polygon')
+      {
+        let str = 'POLYGON (('
+        for (const coord of obj.geojson.coordinates[0]) {
+          var point = GeometryUtils.reprojectPoint(GeometryUtils.point(coord[0], coord[1]), CoordinateReferenceSystemUtils.wgs84Crs(), mapCanvas.mapSettings.destinationCrs);
+          str += point.x +' ' + point.y + ', '
+        }
+        str = str.substring(0, str.length - 2)
+        str += '))'
+        let geom = GeometryUtils.createGeometryFromWkt(str)
+        geommetryHightLigth.geometryWrapper.qgsGeometry = geom
+        geommetryHightLigth.geometryWrapper.crs = mapCanvas.mapSettings.destinationCrs
+      } else {
+      let str = 'POINT (' + displayPoint.x + ' ' + displayPoint.y+')'
+      let geom = GeometryUtils.createGeometryFromWkt(str)
+      geommetryHightLigth.geometryWrapper.qgsGeometry = geom
+      geommetryHightLigth.geometryWrapper.crs = mapCanvas.mapSettings.destinationCrs
+    }
+    mainWindow.displayToast(obj.display_name)
+    break
+
+  }
+
+}
+}
+request.open("GET", "https://nominatim.openstreetmap.org/search.php?q="+location+"&polygon_geojson=1&format=jsonv2")
+request.setRequestHeader('User-Agent', 'FAKE-USER-AGENT');
+request.send();
+}
+}

metadata.txt

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+[general]
+name=Address Geocoder using nominatim
+description=Search addresses in search bar.
+author=Quentin Savoye
+icon=icon.svg
+version=1.0
+homepage=https://github.com/qsavoye