rule-node-link.component.ts
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///
/// Copyright © 2016-2020 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 { Component, forwardRef, Input, OnInit } from '@angular/core';
import { ControlValueAccessor, FormBuilder, FormGroup, NG_VALUE_ACCESSOR, Validators } from '@angular/forms';
import { FcRuleEdge, LinkLabel } from '@shared/models/rule-node.models';
import { coerceBooleanProperty } from '@angular/cdk/coercion';
import { TruncatePipe } from '@shared/pipe/truncate.pipe';
import { TranslateService } from '@ngx-translate/core';
@Component({
selector: 'tb-rule-node-link',
templateUrl: './rule-node-link.component.html',
styleUrls: [],
providers: [{
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => RuleNodeLinkComponent),
multi: true
}]
})
export class RuleNodeLinkComponent implements ControlValueAccessor, OnInit {
private requiredValue: boolean;
get required(): boolean {
return this.requiredValue;
}
@Input()
set required(value: boolean) {
this.requiredValue = coerceBooleanProperty(value);
}
@Input()
disabled: boolean;
private allowCustomValue: boolean;
get allowCustom(): boolean {
return this.allowCustomValue;
}
@Input()
set allowCustom(value: boolean) {
this.allowCustomValue = coerceBooleanProperty(value);
}
@Input()
allowedLabels: {[label: string]: LinkLabel};
ruleNodeLinkFormGroup: FormGroup;
modelValue: FcRuleEdge;
private propagateChange = (v: any) => { };
constructor(private fb: FormBuilder,
public truncate: TruncatePipe,
public translate: TranslateService) {
this.ruleNodeLinkFormGroup = this.fb.group({
labels: [[], Validators.required]
});
this.ruleNodeLinkFormGroup.get('labels').valueChanges.subscribe(
(labels: string[]) => this.updateModel(labels)
);
}
registerOnChange(fn: any): void {
this.propagateChange = fn;
}
registerOnTouched(fn: any): void {
}
ngOnInit(): void {
}
setDisabledState(isDisabled: boolean): void {
this.disabled = isDisabled;
if (this.disabled) {
this.ruleNodeLinkFormGroup.disable({emitEvent: false});
} else {
this.ruleNodeLinkFormGroup.enable({emitEvent: false});
}
}
writeValue(value: FcRuleEdge): void {
this.modelValue = value;
const labels = this.modelValue && this.modelValue.labels ? this.modelValue.labels : [];
this.ruleNodeLinkFormGroup.get('labels').patchValue(labels, {emitEvent: false});
}
private updateModel(labels: string[]) {
if (labels && labels.length) {
this.modelValue.labels = labels;
this.modelValue.label = labels.join(' / ');
this.propagateChange(this.modelValue);
} else {
this.propagateChange(this.required ? null : this.modelValue);
}
}
}