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angular2

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Angular 2 - a web framework for modern web apps

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import { ListWrapper, StringMapWrapper } from 'angular2/src/facade/collection'; import { isBlank, isPresent, looseIdentical } from 'angular2/src/facade/lang'; import { BaseException } from 'angular2/src/facade/exceptions'; import { Validators } from '../validators'; import { DefaultValueAccessor } from './default_value_accessor'; import { NumberValueAccessor } from './number_value_accessor'; import { CheckboxControlValueAccessor } from './checkbox_value_accessor'; import { SelectControlValueAccessor } from './select_control_value_accessor'; import { normalizeValidator } from './normalize_validator'; export function controlPath(name, parent) { var p = ListWrapper.clone(parent.path); p.push(name); return p; } export function setUpControl(control, dir) { if (isBlank(control)) _throwError(dir, "Cannot find control"); if (isBlank(dir.valueAccessor)) _throwError(dir, "No value accessor for"); control.validator = Validators.compose([control.validator, dir.validator]); control.asyncValidator = Validators.composeAsync([control.asyncValidator, dir.asyncValidator]); dir.valueAccessor.writeValue(control.value); // view -> model dir.valueAccessor.registerOnChange(newValue => { dir.viewToModelUpdate(newValue); control.updateValue(newValue, { emitModelToViewChange: false }); control.markAsDirty(); }); // model -> view control.registerOnChange(newValue => dir.valueAccessor.writeValue(newValue)); // touched dir.valueAccessor.registerOnTouched(() => control.markAsTouched()); } export function setUpControlGroup(control, dir) { if (isBlank(control)) _throwError(dir, "Cannot find control"); control.validator = Validators.compose([control.validator, dir.validator]); control.asyncValidator = Validators.composeAsync([control.asyncValidator, dir.asyncValidator]); } function _throwError(dir, message) { var path = dir.path.join(" -> "); throw new BaseException(`${message} '${path}'`); } export function composeValidators(validators) { return isPresent(validators) ? Validators.compose(validators.map(normalizeValidator)) : null; } export function composeAsyncValidators(validators) { return isPresent(validators) ? Validators.composeAsync(validators.map(normalizeValidator)) : null; } export function isPropertyUpdated(changes, viewModel) { if (!StringMapWrapper.contains(changes, "model")) return false; var change = changes["model"]; if (change.isFirstChange()) return true; return !looseIdentical(viewModel, change.currentValue); } // TODO: vsavkin remove it once https://github.com/angular/angular/issues/3011 is implemented export function selectValueAccessor(dir, valueAccessors) { if (isBlank(valueAccessors)) return null; var defaultAccessor; var builtinAccessor; var customAccessor; valueAccessors.forEach(v => { if (v instanceof DefaultValueAccessor) { defaultAccessor = v; } else if (v instanceof CheckboxControlValueAccessor || v instanceof NumberValueAccessor || v instanceof SelectControlValueAccessor) { if (isPresent(builtinAccessor)) _throwError(dir, "More than one built-in value accessor matches"); builtinAccessor = v; } else { if (isPresent(customAccessor)) _throwError(dir, "More than one custom value accessor matches"); customAccessor = v; } }); if (isPresent(customAccessor)) return customAccessor; if (isPresent(builtinAccessor)) return builtinAccessor; if (isPresent(defaultAccessor)) return defaultAccessor; _throwError(dir, "No valid value accessor for"); return null; } //# 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{ListWrapper, StringMapWrapper} from 'angular2/src/facade/collection';\nimport {isBlank, isPresent, looseIdentical} from 'angular2/src/facade/lang';\nimport {BaseException, WrappedException} from 'angular2/src/facade/exceptions';\n\nimport {ControlContainer} from './control_container';\nimport {NgControl} from './ng_control';\nimport {AbstractControlDirective} from './abstract_control_directive';\nimport {NgControlGroup} from './ng_control_group';\nimport {Control, ControlGroup} from '../model';\nimport {Validators} from '../validators';\nimport {ControlValueAccessor} from './control_value_accessor';\nimport {DefaultValueAccessor} from './default_value_accessor';\nimport {NumberValueAccessor} from './number_value_accessor';\nimport {CheckboxControlValueAccessor} from './checkbox_value_accessor';\nimport {SelectControlValueAccessor} from './select_control_value_accessor';\nimport {normalizeValidator} from './normalize_validator';\n\n\nexport function controlPath(name: string, parent: ControlContainer): string[] {\n  var p = ListWrapper.clone(parent.path);\n  p.push(name);\n  return p;\n}\n\nexport function setUpControl(control: Control, dir: NgControl): void {\n  if (isBlank(control)) _throwError(dir, \"Cannot find control\");\n  if (isBlank(dir.valueAccessor)) _throwError(dir, \"No value accessor for\");\n\n  control.validator = Validators.compose([control.validator, dir.validator]);\n  control.asyncValidator = Validators.composeAsync([control.asyncValidator, dir.asyncValidator]);\n  dir.valueAccessor.writeValue(control.value);\n\n  // view -> model\n  dir.valueAccessor.registerOnChange(newValue => {\n    dir.viewToModelUpdate(newValue);\n    control.updateValue(newValue, {emitModelToViewChange: false});\n    control.markAsDirty();\n  });\n\n  // model -> view\n  control.registerOnChange(newValue => dir.valueAccessor.writeValue(newValue));\n\n  // touched\n  dir.valueAccessor.registerOnTouched(() => control.markAsTouched());\n}\n\nexport function setUpControlGroup(control: ControlGroup, dir: NgControlGroup) {\n  if (isBlank(control)) _throwError(dir, \"Cannot find control\");\n  control.validator = Validators.compose([control.validator, dir.validator]);\n  control.asyncValidator = Validators.composeAsync([control.asyncValidator, dir.asyncValidator]);\n}\n\nfunction _throwError(dir: AbstractControlDirective, message: string): void {\n  var path = dir.path.join(\" -> \");\n  throw new BaseException(`${message} '${path}'`);\n}\n\nexport function composeValidators(validators: /* Array<Validator|Function> */ any[]): Function {\n  return isPresent(validators) ? Validators.compose(validators.map(normalizeValidator)) : null;\n}\n\nexport function composeAsyncValidators(\n    validators: /* Array<Validator|Function> */ any[]): Function {\n  return isPresent(validators) ? Validators.composeAsync(validators.map(normalizeValidator)) : null;\n}\n\nexport function isPropertyUpdated(changes: {[key: string]: any}, viewModel: any): boolean {\n  if (!StringMapWrapper.contains(changes, \"model\")) return false;\n  var change = changes[\"model\"];\n\n  if (change.isFirstChange()) return true;\n  return !looseIdentical(viewModel, change.currentValue);\n}\n\n// TODO: vsavkin remove it once https://github.com/angular/angular/issues/3011 is implemented\nexport function selectValueAccessor(dir: NgControl,\n                                    valueAccessors: ControlValueAccessor[]): ControlValueAccessor {\n  if (isBlank(valueAccessors)) return null;\n\n  var defaultAccessor;\n  var builtinAccessor;\n  var customAccessor;\n\n  valueAccessors.forEach(v => {\n    if (v instanceof DefaultValueAccessor) {\n      defaultAccessor = v;\n\n    } else if (v instanceof CheckboxControlValueAccessor || v instanceof NumberValueAccessor ||\n               v instanceof SelectControlValueAccessor) {\n      if (isPresent(builtinAccessor))\n        _throwError(dir, \"More than one built-in value accessor matches\");\n      builtinAccessor = v;\n\n    } else {\n      if (isPresent(customAccessor))\n        _throwError(dir, \"More than one custom value accessor matches\");\n      customAccessor = v;\n    }\n  });\n\n  if (isPresent(customAccessor)) return customAccessor;\n  if (isPresent(builtinAccessor)) return builtinAccessor;\n  if (isPresent(defaultAccessor)) return defaultAccessor;\n\n  _throwError(dir, \"No valid value accessor for\");\n  return null;\n}\n"]}