Feature/input widget webcamera (#1990)

* create widget and work to video

* style widget stream photo and create preview photo

* Add translate, save and style from widget

@@ -276,6 +276,22 @@
         "dataKeySettingsSchema": "{\n    \"schema\": {\n        \"type\": \"object\",\n        \"title\": \"DataKeySettings\",\n        \"properties\": {\n            \"readOnly\": {\n                \"title\": \"Value is read only\",\n                \"type\": \"boolean\",\n                \"default\": false\n            },\n            \"inputTypeNumber\": {\n                \"title\": \"Datakey is a number\",\n                \"type\": \"boolean\",\n                \"default\": false\n            },\n            \"step\": {\n                \"title\": \"Step interval between valid values (only for numbers)\",\n                \"type\": \"number\",\n                \"default\": \"1\"\n            },\n            \"icon\": {\n                \"title\": \"Icon to show before input cell\",\n                \"type\": \"string\",\n                \"default\": \"\"\n            },\n            \"useCellStyleFunction\": {\n                \"title\": \"Use cell style function\",\n                \"type\": \"boolean\",\n                \"default\": false\n            },\n            \"cellStyleFunction\": {\n                \"title\": \"Cell style function: f(value)\",\n                \"type\": \"string\",\n                \"default\": \"\"\n            }\n        },\n        \"required\": []\n    },\n    \"form\": [\n        \"readOnly\",\n        \"inputTypeNumber\",\n        \"step\",\n\t\t{\n    \t\t\"key\": \"icon\",\n\t\t\t\"type\": \"icon\"\n\t\t},\n        \"useCellStyleFunction\",\n        {\n            \"key\": \"cellStyleFunction\",\n            \"type\": \"javascript\"\n        }\n    ]\n}\n",
         "defaultConfig": "{\"datasources\":[{\"type\":\"function\",\"name\":\"function\",\"dataKeys\":[{\"name\":\"f(x)\",\"type\":\"function\",\"label\":\"Sin\",\"color\":\"#2196f3\",\"settings\":{},\"_hash\":0.23592248334107624,\"funcBody\":\"return Math.round(1000*Math.sin(time/5000));\"}]}],\"timewindow\":{\"realtime\":{\"timewindowMs\":60000}},\"showTitle\":true,\"backgroundColor\":\"#fff\",\"color\":\"rgba(0, 0, 0, 0.87)\",\"padding\":\"8px\",\"settings\":{},\"title\":\"Update Multiple Attributes\",\"dropShadow\":true,\"enableFullscreen\":false,\"enableDataExport\":false,\"widgetStyle\":{},\"titleStyle\":{\"fontSize\":\"16px\",\"fontWeight\":400},\"useDashboardTimewindow\":true,\"showLegend\":false,\"actions\":{}}"
       }
+    },
+    {
+      "alias": "web_camera_input",
+      "name": "Web Camera Input",
+      "descriptor": {
+        "type": "latest",
+        "sizeX": 9.5,
+        "sizeY": 6.5,
+        "resources": [],
+        "templateHtml": "<tb-web-camera-widget ctx=\"ctx\">\n</tb-web-camera-widget>",
+        "templateCss": "#container {\n    overflow: auto;\n}\n\n.tbDatasource-container {\n    margin: 5px;\n    padding: 8px;\n}\n\n.tbDatasource-title {\n    font-size: 1.200rem;\n    font-weight: 500;\n    padding-bottom: 10px;\n}\n\n.tbDatasource-table {\n    width: 100%;\n    box-shadow: 0 0 10px #ccc;\n    border-collapse: collapse;\n    white-space: nowrap;\n    font-size: 1.000rem;\n    color: #757575;\n}\n\n.tbDatasource-table td {\n    position: relative;\n    border-top: 1px solid rgba(0, 0, 0, 0.12);\n    border-bottom: 1px solid rgba(0, 0, 0, 0.12);\n    padding: 0px 18px;\n    box-sizing: border-box;\n}",
+        "controllerScript": "self.onInit = function() {\n    var scope = self.ctx.$scope;\n    scope.ctx = self.ctx;\n}\n\nself.onDataUpdated = function() {\n}\n\nself.typeParameters = function() {\n    return {\n        maxDatasources: 1,\n        maxDataKeys: 1\n    }\n}\n\nself.onDestroy = function() {\n}\n",
+        "settingsSchema": "{}",
+        "dataKeySettingsSchema": "{}\n",
+        "defaultConfig": "{\"datasources\":[{\"type\":\"function\",\"name\":\"function\",\"dataKeys\":[{\"name\":\"f(x)\",\"type\":\"function\",\"label\":\"Random\",\"color\":\"#2196f3\",\"settings\":{},\"_hash\":0.15479322438769105,\"funcBody\":\"var value = prevValue + Math.random() * 100 - 50;\\nvar multiplier = Math.pow(10, 2 || 0);\\nvar value = Math.round(value * multiplier) / multiplier;\\nif (value < -1000) {\\n\\tvalue = -1000;\\n} else if (value > 1000) {\\n\\tvalue = 1000;\\n}\\nreturn value;\"}]}],\"timewindow\":{\"realtime\":{\"timewindowMs\":60000}},\"showTitle\":true,\"backgroundColor\":\"#fff\",\"color\":\"rgba(0, 0, 0, 0.87)\",\"padding\":\"8px\",\"settings\":{},\"title\":\"Web Camera Input\",\"showTitleIcon\":false,\"titleIcon\":\"more_horiz\",\"iconColor\":\"rgba(0, 0, 0, 0.87)\",\"iconSize\":\"24px\",\"titleTooltip\":\"\",\"dropShadow\":true,\"enableFullscreen\":false,\"widgetStyle\":{},\"titleStyle\":{\"fontSize\":\"16px\",\"fontWeight\":400},\"useDashboardTimewindow\":true,\"displayTimewindow\":true,\"showLegend\":false,\"actions\":{}}"
+      }
     }
   ]
 }

@@ -25,6 +25,7 @@ import thingsboardEntitiesHierarchyWidget from '../widget/lib/entities-hierarchy
 import thingsboardExtensionsTableWidget from '../widget/lib/extensions-table-widget';
 import thingsboardDateRangeNavigatorWidget from '../widget/lib/date-range-navigator/date-range-navigator';
 import thingsboardMultipleInputWidget from '../widget/lib/multiple-input-widget';
+import thingsboardWebCameraInputWidget from '../widget/lib/web-camera-input-widget';
 
 import thingsboardRpcWidgets from '../widget/lib/rpc';
 
@@ -50,7 +51,8 @@ import thingsboardUtils from '../common/utils.service';
 export default angular.module('thingsboard.api.widget', ['oc.lazyLoad', thingsboardLedLight,
     thingsboardTimeseriesTableWidget, thingsboardAlarmsTableWidget, thingsboardEntitiesTableWidget,
     thingsboardEntitiesHierarchyWidget, thingsboardExtensionsTableWidget, thingsboardDateRangeNavigatorWidget,
-    thingsboardMultipleInputWidget, thingsboardRpcWidgets, thingsboardTypes, thingsboardUtils, TripAnimationWidget])
+    thingsboardMultipleInputWidget, thingsboardWebCameraInputWidget, thingsboardRpcWidgets, thingsboardTypes,
+    thingsboardUtils, TripAnimationWidget])
     .factory('widgetService', WidgetService)
     .name;
 

@@ -1693,10 +1693,15 @@
             "entity-timeseries-required": "Entity timeseries is required",
             "not-allowed-entity": "Selected entity cannot have shared attributes",
             "no-attribute-selected": "No attribute is selected",
+            "no-datakey-selected": "No datakey is selected",
             "no-entity-selected": "No entity selected",
+            "no-image": "No image",
+            "no-support-web-camera": "No supported web camera",
             "no-timeseries-selected": "No timeseries selected",
             "switch-attribute-value": "Switch entity attribute value",
+            "switch-camera": "Switch camera",
             "switch-timeseries-value": "Switch entity timeseries value",
+            "take-photo": "Take photo",
             "time": "Time",
             "timeseries-not-allowed": "Timeseries parameter cannot be used in this widget",
             "update-failed": "Update failed",

+/*
+ * Copyright © 2016-2019 The Thingsboard Authors
+ *
+ * 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 './web-camera-input-widget.scss';
+
+/* eslint-disable import/no-unresolved, import/default */
+import webCameraWidgetTemplate from './web-camera-input-widget.tpl.html';
+/* eslint-enable import/no-unresolved, import/default */
+
+export default angular.module('thingsboard.widgets.webCameraWidget', [])
+    .directive('tbWebCameraWidget', webCameraWidget)
+    .name;
+
+/*@ngInject*/
+function webCameraWidget() {
+    return {
+        restrict: "E",
+        scope: true,
+        bindToController: {
+            ctx: '='
+        },
+        controller: WebCameraWidgetController,
+        controllerAs: 'vm',
+        templateUrl: webCameraWidgetTemplate
+    };
+}
+
+function WebCameraWidgetController($element, $scope, $window, types, utils, attributeService, Fullscreen) {
+    let vm = this;
+
+    vm.videoInput = [];
+    vm.videoDevice = "";
+    vm.previewPhoto = "";
+    vm.isShowCamera = false;
+    vm.isPreviewPhoto = false;
+
+    let streamDevice = null;
+    let indexWebCamera = 0;
+    let videoElement = null;
+    let canvas = null;
+    let photoCamera = null;
+    let dataKeyType = "";
+
+    vm.getStream = getStream;
+    vm.createPhoto = createPhoto;
+    vm.takePhoto = takePhoto;
+    vm.switchWebCamera = switchWebCamera;
+    vm.cancelPhoto = cancelPhoto;
+    vm.closeCamera = closeCamera;
+    vm.savePhoto = savePhoto;
+
+    vm.isEntityDetected = false;
+    vm.dataKeyDetected = false;
+    vm.isCameraSupport = false;
+    vm.isDeviceDetect = false;
+
+    $scope.$watch('vm.ctx', function () {
+        if (vm.ctx && vm.ctx.datasources && vm.ctx.datasources.length) {
+            let datasource = vm.ctx.datasources[0];
+            if (datasource.type === types.datasourceType.entity) {
+                if (datasource.entityType && datasource.entityId) {
+                    if (vm.ctx.settings.widgetTitle && vm.ctx.settings.widgetTitle.length) {
+                        $scope.titleTemplate = utils.customTranslation(vm.ctx.settings.widgetTitle, vm.ctx.settings.widgetTitle);
+                    } else {
+                        $scope.titleTemplate = vm.ctx.widgetConfig.title;
+                    }
+                    vm.isEntityDetected = true;
+                }
+            }
+            if (datasource.dataKeys.length) {
+                $scope.currentKey = datasource.dataKeys[0].name;
+                dataKeyType = datasource.dataKeys[0].type;
+                vm.dataKeyDetected = true;
+            }
+            if (hasGetUserMedia()) {
+                vm.isCameraSupport = true;
+                getDevices().then(gotDevices).then(() => {
+                    vm.isDeviceDetect = !!vm.videoInput.length;
+                });
+            }
+        }
+    });
+
+    function hasGetUserMedia() {
+        return !!($window.navigator.mediaDevices && $window.navigator.mediaDevices.getUserMedia);
+    }
+
+    function takePhoto(){
+        vm.isShowCamera = true;
+        videoElement = $element[0].querySelector('#videoStream');
+        photoCamera = $element[0].querySelector('#photoCamera');
+        canvas = $element[0].querySelector('canvas');
+        Fullscreen.enable(photoCamera);
+        getStream();
+    }
+
+    function cancelPhoto() {
+        vm.isPreviewPhoto = false;
+        vm.previewPhoto = "";
+    }
+
+    function switchWebCamera() {
+        indexWebCamera = (indexWebCamera+1)%vm.videoInput.length;
+        vm.videoDevice = vm.videoInput[indexWebCamera].deviceId;
+        getStream();
+    }
+
+    function getDevices() {
+        return $window.navigator.mediaDevices.enumerateDevices();
+    }
+
+    function gotDevices(deviceInfos) {
+        for (const deviceInfo of deviceInfos) {
+            let device = {
+                deviceId: deviceInfo.deviceId,
+                label: ""
+            };
+            if (deviceInfo.kind === 'videoinput') {
+                device.label = deviceInfo.label || `Camera ${vm.videoInput.length + 1}`;
+                vm.videoInput.push(device);
+            }
+        }
+    }
+
+    function getStream() {
+        if (streamDevice !== null) {
+            streamDevice.getTracks().forEach(track => {
+                track.stop();
+            });
+        }
+        const constraints = {
+            video: {deviceId: vm.videoDevice !== "" ? {exact: vm.videoDevice} : undefined}
+        };
+        return $window.navigator.mediaDevices.getUserMedia(constraints).then(gotStream);
+    }
+
+    function gotStream(stream) {
+        streamDevice = stream;
+        if(vm.videoDevice === ""){
+            indexWebCamera = vm.videoInput.findIndex(option => option.label === stream.getVideoTracks()[0].label);
+            indexWebCamera = indexWebCamera === -1 ? 0 : indexWebCamera;
+            vm.videoDevice = vm.videoInput[indexWebCamera].deviceId;
+        }
+        videoElement.srcObject = stream;
+    }
+
+    function createPhoto() {
+        canvas.width = videoElement.videoWidth;
+        canvas.height = videoElement.videoHeight;
+        canvas.getContext('2d').drawImage(videoElement, 0, 0);
+        vm.previewPhoto = canvas.toDataURL('image/png');
+        vm.isPreviewPhoto = true;
+    }
+
+    function closeCamera(){
+        Fullscreen.cancel(photoCamera);
+        vm.isShowCamera = false;
+        if (streamDevice !== null) {
+            streamDevice.getTracks().forEach(track => {
+                track.stop();
+            });
+        }
+        streamDevice = null;
+        videoElement.srcObject = null;
+    }
+
+    function savePhoto(){
+        let promiseData = null;
+        let datasource = vm.ctx.datasources[0];
+        let saveData = [{
+            key: datasource.dataKeys[0].name,
+            value: vm.previewPhoto
+        }];
+        if(dataKeyType === types.dataKeyType.attribute){
+            promiseData = attributeService.saveEntityAttributes(datasource.entityType, datasource.entityId, types.attributesScope.server.value, saveData);
+        } else if(dataKeyType === types.dataKeyType.timeseries){
+            promiseData = attributeService.saveEntityTimeseries(datasource.entityType, datasource.entityId, "scope", saveData);
+        }
+        promiseData.then(()=>{
+            vm.isPreviewPhoto = false;
+            closeCamera();
+        })
+    }
+}

+/**
+ * Copyright © 2016-2019 The Thingsboard Authors
+ *
+ * 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.
+ */
+
+.tb-web-camera {
+  height: 100%;
+
+  &__last-photo{
+    width: 100%;
+    margin: 5px 0;
+    text-align: center;
+    border: solid 1px;
+
+    &_text{
+      position: absolute;
+      top: 50%;
+      left: 50%;
+      margin-top: -.625em;
+      transform: translate(-50%, -50%);
+    }
+
+    &_img{
+      width: 100%;
+      height: 100%;
+      object-fit: contain;
+    }
+  }
+
+  .camera {
+    position: relative;
+    width: 100%;
+    height: 100%;
+    overflow: hidden;
+
+    .camera-stream{
+      display: block;
+      width: 100%;
+      height: 100%;
+      object-fit: contain;
+    }
+
+    .camera-controls {
+      position: absolute;
+      bottom: 0;
+      width: 100%;
+      padding: 0 5px 5px;
+    }
+  }
+
+  .message-text{
+    font-size: 18px;
+    color: #a0a0a0;
+    text-align: center;
+  }
+}

+<!--
+
+    Copyright © 2016-2019 The Thingsboard Authors
+
+    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.
+
+-->
+<div layout="column" layout-align="center center" class="tb-web-camera">
+    <div ng-if="vm.isEntityDetected && vm.dataKeyDetected && vm.isCameraSupport && vm.isDeviceDetect" layout-fill>
+        <div ng-show="!vm.isShowCamera" layout="column" layout-align="space-between center" layout-fill>
+            <div class="tb-web-camera__last-photo" flex>
+                <span ng-show="!vm.ctx.data[0].data[0][1]" class="tb-web-camera__last-photo_text" translate>widgets.input-widgets.no-image</span>
+                <img ng-show="vm.ctx.data[0].data[0][1]" class="tb-web-camera__last-photo_img" ng-src="{{vm.ctx.data[0].data[0][1]}}" />
+            </div>
+            <md-button class="md-raised md-primary" ng-click="vm.takePhoto()"">{{ "widgets.input-widgets.take-photo" | translate }}</md-button>
+        </div>
+        <div ng-show="vm.isShowCamera" layout="column" layout-align="center center" id="photoCamera">
+            <div class="camera" ng-show="!vm.isPreviewPhoto">
+                <video autoplay muted playsinline id="videoStream" class="camera-stream"></video>
+                <div class="camera-controls" layout="row" layout-wrap="" layout-align="space-between end">
+                    <div flex></div>
+                    <md-button class="md-fab md-primary md-mini" aria-label="{{ 'widgets.input-widgets.switch-camera' | translate }}"
+                               ng-click="vm.switchWebCamera()" ng-disabled="{{vm.videoInput.length < 2}}">
+                        <md-icon md-font-icon="switch_camera" aaria-label="{{ 'widgets.input-widgets.switch-camera' | translate }}">switch_camera</md-icon>
+                    </md-button>
+                    <md-button class="md-fab md-hue-2" aria-label="{{ 'widgets.input-widgets.take-photo' | translate }}" ng-click="vm.createPhoto()">
+                        <md-icon md-font-icon="photo_camera" aria-label="Take Photo">photo_camera</md-icon>
+                    </md-button>
+                    <md-button class="md-fab md-primary md-mini" aria-label="{{ 'action.cancel' | translate }}" ng-click="vm.closeCamera()">
+                        <md-icon md-font-icon="close" aria-label="{{ 'action.cancel' | translate }}">close</md-icon>
+                    </md-button>
+                    <div flex></div>
+                </div>
+            </div>
+            <div class="camera" ng-show="vm.isPreviewPhoto">
+                <img class="camera-stream" ng-src="{{vm.previewPhoto}}">
+                <canvas style="display:none;"></canvas>
+                <div class="camera-controls" layout="row" layout-wrap="" layout-align="space-between end">
+                    <div flex></div>
+                    <md-button class="md-fab md-primary" aria-label="{{ 'action.cancel' | translate }}" ng-click="vm.cancelPhoto()">
+                        <md-icon md-font-icon="close" aria-label="{{ 'action.cancel' | translate }}">close</md-icon>
+                    </md-button>
+                    <md-button class="md-fab md-hue-2" aria-label="{{ 'action.save' | translate }}" ng-click="vm.savePhoto()">
+                        <md-icon md-font-icon="check" aria-label="{{ 'action.save' | translate }}">check</md-icon>
+                    </md-button>
+                    <div flex></div>
+                </div>
+            </div>
+        </div>
+    </div>
+    <div class="message-text" ng-hide="vm.isEntityDetected">
+        {{ 'widgets.input-widgets.no-entity-selected' | translate }}
+    </div>
+    <div class="message-text" ng-if="vm.isEntityDetected && !vm.dataKeyDetected">
+        {{ 'widgets.input-widgets.no-datakey-selected' | translate }}
+    </div>
+    <div class="message-text" ng-if="vm.isEntityDetected && vm.dataKeyDetected && !vm.isCameraSupport">
+        {{ 'widgets.input-widgets.no-support-web-camera' | translate }}
+    </div>
+    <div class="message-text" ng-if="vm.isEntityDetected && vm.dataKeyDetected && vm.isCameraSupport && !vm.isDeviceDetect">
+        {{ 'widgets.input-widgets.no-support-web-camera' | translate }}
+    </div>
+</div>