markdown-widget.component.ts
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///
/// Copyright © 2016-2021 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 { ChangeDetectorRef, Component, Input, OnInit } from '@angular/core';
import { PageComponent } from '@shared/components/page.component';
import { WidgetContext } from '@home/models/widget-component.models';
import { Store } from '@ngrx/store';
import { AppState } from '@core/core.state';
import { DatasourceData } from '@shared/models/widget.models';
import { DataKeyType } from '@shared/models/telemetry/telemetry.models';
import {
fillPattern, flatData,
parseData,
parseFunction,
processPattern,
safeExecute
} from '@home/components/widget/lib/maps/common-maps-utils';
import { FormattedData } from '@home/components/widget/lib/maps/map-models';
import { hashCode, isNotEmptyStr } from '@core/utils';
import cssjs from '@core/css/css';
import { UtilsService } from '@core/services/utils.service';
interface MarkdownWidgetSettings {
markdownTextPattern: string;
useMarkdownTextFunction: boolean;
markdownTextFunction: string;
markdownCss: string;
}
type MarkdownTextFunction = (data: FormattedData[]) => string;
@Component({
selector: 'tb-markdown-widget ',
templateUrl: './markdown-widget.component.html',
styleUrls: ['./markdown-widget.component.scss']
})
export class MarkdownWidgetComponent extends PageComponent implements OnInit {
settings: MarkdownWidgetSettings;
markdownTextFunction: MarkdownTextFunction;
@Input()
ctx: WidgetContext;
markdownText: string;
markdownClass: string;
constructor(protected store: Store<AppState>,
private utils: UtilsService,
private cd: ChangeDetectorRef) {
super(store);
}
ngOnInit(): void {
this.ctx.$scope.markdownWidget = this;
this.settings = this.ctx.settings;
this.markdownTextFunction = this.settings.useMarkdownTextFunction ? parseFunction(this.settings.markdownTextFunction, ['data']) : null;
this.markdownClass = 'markdown-widget';
const cssString = this.settings.markdownCss;
if (isNotEmptyStr(cssString)) {
const cssParser = new cssjs();
cssParser.testMode = false;
this.markdownClass += '-' + hashCode(cssString);
cssParser.cssPreviewNamespace = 'tb-markdown-view.' + this.markdownClass;
cssParser.createStyleElement(this.markdownClass, cssString);
}
}
public onDataUpdated() {
let initialData: DatasourceData[];
if (this.ctx.data?.length) {
initialData = this.ctx.data;
} else if (this.ctx.datasources?.length) {
initialData = [
{
datasource: this.ctx.datasources[0],
dataKey: {
type: DataKeyType.attribute,
name: 'empty'
},
data: []
}
];
}
let markdownText: string;
if (initialData) {
const data = parseData(initialData);
markdownText = this.settings.useMarkdownTextFunction ?
safeExecute(this.markdownTextFunction, [data]) : this.settings.markdownTextPattern;
const allData = flatData(data);
const replaceInfo = processPattern(markdownText, allData);
markdownText = fillPattern(markdownText, replaceInfo, allData);
}
if (this.markdownText !== markdownText) {
this.markdownText = this.utils.customTranslation(markdownText, markdownText);
this.cd.detectChanges();
}
}
markdownClick($event: MouseEvent) {
this.ctx.actionsApi.elementClick($event);
}
}