695923dcd6
BREAKING CHANGE
All private exports from 'angular2/src/core/{directives,pipes,forms}' should be replaced with 'angular2/src/common/{directives,pipes,formis}'
Closes #5153
115 lines
4.5 KiB
TypeScript
115 lines
4.5 KiB
TypeScript
import {ListWrapper, StringMapWrapper} from 'angular2/src/core/facade/collection';
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import {isBlank, isPresent, looseIdentical} from 'angular2/src/core/facade/lang';
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import {BaseException, WrappedException} from 'angular2/src/core/facade/exceptions';
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import {ControlContainer} from './control_container';
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import {NgControl} from './ng_control';
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import {AbstractControlDirective} from './abstract_control_directive';
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import {NgControlGroup} from './ng_control_group';
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import {Control, ControlGroup} from '../model';
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import {Validators} from '../validators';
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import {ControlValueAccessor} from './control_value_accessor';
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import {ElementRef, QueryList} from 'angular2/src/core/linker';
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import {Renderer} from 'angular2/src/core/render';
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import {DefaultValueAccessor} from './default_value_accessor';
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import {NumberValueAccessor} from './number_value_accessor';
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import {CheckboxControlValueAccessor} from './checkbox_value_accessor';
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import {SelectControlValueAccessor} from './select_control_value_accessor';
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import {normalizeValidator} from './normalize_validator';
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export function controlPath(name: string, parent: ControlContainer): string[] {
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var p = ListWrapper.clone(parent.path);
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p.push(name);
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return p;
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}
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export function setUpControl(control: Control, dir: NgControl): void {
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if (isBlank(control)) _throwError(dir, "Cannot find control");
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if (isBlank(dir.valueAccessor)) _throwError(dir, "No value accessor for");
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control.validator = Validators.compose([control.validator, dir.validator]);
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control.asyncValidator = Validators.composeAsync([control.asyncValidator, dir.asyncValidator]);
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dir.valueAccessor.writeValue(control.value);
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// view -> model
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dir.valueAccessor.registerOnChange(newValue => {
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dir.viewToModelUpdate(newValue);
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control.updateValue(newValue, {emitModelToViewChange: false});
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control.markAsDirty();
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});
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// model -> view
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control.registerOnChange(newValue => dir.valueAccessor.writeValue(newValue));
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// touched
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dir.valueAccessor.registerOnTouched(() => control.markAsTouched());
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}
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export function setUpControlGroup(control: ControlGroup, dir: NgControlGroup) {
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if (isBlank(control)) _throwError(dir, "Cannot find control");
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control.validator = Validators.compose([control.validator, dir.validator]);
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control.asyncValidator = Validators.composeAsync([control.asyncValidator, dir.asyncValidator]);
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}
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function _throwError(dir: AbstractControlDirective, message: string): void {
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var path = dir.path.join(" -> ");
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throw new BaseException(`${message} '${path}'`);
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}
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export function setProperty(renderer: Renderer, elementRef: ElementRef, propName: string,
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propValue: any) {
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renderer.setElementProperty(elementRef, propName, propValue);
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}
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export function composeValidators(validators: /* Array<Validator|Function> */ any[]): Function {
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return isPresent(validators) ? Validators.compose(validators.map(normalizeValidator)) : null;
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}
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export function composeAsyncValidators(
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validators: /* Array<Validator|Function> */ any[]): Function {
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return isPresent(validators) ? Validators.composeAsync(validators.map(normalizeValidator)) : null;
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}
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export function isPropertyUpdated(changes: {[key: string]: any}, viewModel: any): boolean {
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if (!StringMapWrapper.contains(changes, "model")) return false;
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var change = changes["model"];
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if (change.isFirstChange()) return true;
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return !looseIdentical(viewModel, change.currentValue);
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}
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// TODO: vsavkin remove it once https://github.com/angular/angular/issues/3011 is implemented
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export function selectValueAccessor(dir: NgControl,
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valueAccessors: ControlValueAccessor[]): ControlValueAccessor {
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if (isBlank(valueAccessors)) return null;
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var defaultAccessor;
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var builtinAccessor;
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var customAccessor;
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valueAccessors.forEach(v => {
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if (v instanceof DefaultValueAccessor) {
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defaultAccessor = v;
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} else if (v instanceof CheckboxControlValueAccessor || v instanceof NumberValueAccessor ||
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v instanceof SelectControlValueAccessor) {
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if (isPresent(builtinAccessor))
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_throwError(dir, "More than one built-in value accessor matches");
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builtinAccessor = v;
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} else {
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if (isPresent(customAccessor))
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_throwError(dir, "More than one custom value accessor matches");
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customAccessor = v;
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}
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});
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if (isPresent(customAccessor)) return customAccessor;
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if (isPresent(builtinAccessor)) return builtinAccessor;
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if (isPresent(defaultAccessor)) return defaultAccessor;
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_throwError(dir, "No valid value accessor for");
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return null;
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}
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