@codebakery/origami
Version:
Angular + Polymer
645 lines (613 loc) • 30.7 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/core'), require('@angular/forms')) :
typeof define === 'function' && define.amd ? define('@codebakery/origami/forms', ['exports', '@angular/core', '@angular/forms'], factory) :
(global = global || self, factory((global.codebakery = global.codebakery || {}, global.codebakery.origami = global.codebakery.origami || {}, global.codebakery.origami.forms = {}), global.ng.core, global.ng.forms));
}(this, (function (exports, core, forms) { 'use strict';
/*! *****************************************************************************
Copyright (c) Microsoft Corporation. All rights reserved.
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
THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABLITY OR NON-INFRINGEMENT.
See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */
/* global Reflect, Promise */
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function __makeTemplateObject(cooked, raw) {
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function __classPrivateFieldGet(receiver, privateMap) {
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if (!privateMap.has(receiver)) {
throw new TypeError("attempted to set private field on non-instance");
}
privateMap.set(receiver, value);
return value;
}
/**
* OrigamiControlValueAccessor provider.
*/
var ORIGAMI_CONTROL_VALUE_ACCESSOR = {
provide: forms.NG_VALUE_ACCESSOR,
useExisting: core.forwardRef(function () { return OrigamiControlValueAccessor; }),
multi: true
};
/**
* A value accessor for `ngModel`, `formControl`, and `formControlName`, on
* custom elements. In addition to one of the above directives, `origami`
* should be added to the element to denote that this value accessor should
* control it.
*
* Example: `<paper-input [(ngModel)]="value" origami></paper-input>`
*
* The connected element should implement one of the below
* properties:
*
* - `checked` as a boolean for checkbox-like elements.
* - `selected` for single selectable elements. It must be an index or string
* name attribute.
* - `selectedItem` for single selectable elements. It may be any type.
* - `selectedValues` for multi selectable elements. It must be an array of
* indices or string name attributes.
* - `selectedItems` for multi selectable elements. It must be an array of any
* type.
* - `value` for any basic form element. It may be any type.
*
* For selectable and multi selectable elements, the attribute `useKey` should
* be specified if the control bindings an index or name value to the element
* instead of an object.
*
* Additionally, an element may implement one or more of the following
* properties:
*
* - `disabled` as a boolean
* - `invalid` as a boolean to indicate validity
* - `validate()` as a function to run custom validation
*
* To listen for changes to these events, an element should implement one or
* more of the following events to notify Angular of any updates.
*
* - `input` - will update any of the above properties
* - `blur`
* - `checked-changed`
* - `selected-changed`
* - `selected-item-changed`
* - `selected-values-changed`
* - `selected-items-changed`
* - `value-changed`
* - `invalid-changed`
*/
var OrigamiControlValueAccessor = /** @class */ (function (_super) {
__extends(OrigamiControlValueAccessor, _super);
function OrigamiControlValueAccessor(elementRef, injector, renderer, compositionMode) {
var _this = _super.call(this, renderer, elementRef, compositionMode) || this;
_this.elementRef = elementRef;
_this.injector = injector;
_this.renderer = renderer;
/**
* The key to use when reporting that an element's `validate()` function
* returns false. When this happens, the control's `errors` object will be
* set with this key and a value of true.
*
* The default key is "validate".
*/
_this.validationErrorsKey = 'validate';
/**
* Most custom elements property will emit a `property-changed` event when
* their value is set. This flag informs the value accessor to ignore the
* next event while it is in the middle of writing a value.
*/
_this.isWritingValue = false;
/**
* Flag that informs the value accessor that it is currently updating an
* element and should ignore additional `invalid` property changes until it is
* complete.
*/
_this.ignoreInvalidChanges = false;
return _this;
}
Object.defineProperty(OrigamiControlValueAccessor.prototype, "control", {
/**
* The `AbstractControl` attached to this element.
*/
get: function () {
if (!this._control) {
this._control = this.injector.get(forms.NgControl).control;
}
return this._control;
},
enumerable: true,
configurable: true
});
/**
* Lifecycle callback that will connect an element's validatable properties
* (if they are implemented) to the Angular control.
*/
OrigamiControlValueAccessor.prototype.ngAfterViewInit = function () {
var _this = this;
var element = this.elementRef.nativeElement;
if (this.isValidatable(element)) {
// The control will always be set by ngAfterViewInit due to the nature of
// the directive's selectors
var control_1 = this.control;
// Allows Angular validators to update the custom element's validity
this.statusSub = control_1.statusChanges.subscribe(function () {
if (typeof _this.isInvalid === 'function') {
element.invalid = _this.isInvalid(control_1);
}
else {
element.invalid = !!control_1.invalid && !!control_1.dirty;
}
});
// Allows custom element validate function to update Angular control's
// validity
if (this.shouldUseValidate(element)) {
control_1.setValidators(forms.Validators.compose([
control_1.validator,
function () {
var _a;
if (element.validate()) {
return null;
}
else {
return _a = {}, _a[_this.validationErrorsKey] = true, _a;
}
}
]));
}
}
};
/**
* Lifecycle callback to clean up subscriptions.
*/
OrigamiControlValueAccessor.prototype.ngOnDestroy = function () {
if (this.statusSub) {
this.statusSub.unsubscribe();
}
};
/**
* Writes a value to a custom element's correct value property, based on what
* kind of element the directive controls.
*
* @param value the value to write
*/
OrigamiControlValueAccessor.prototype.writeValue = function (value) {
this.isWritingValue = true;
var element = this.elementRef.nativeElement;
if (this.isMultiSelectable(element) || this.isSelectable(element)) {
var property = this.getSelectableProperty(element, value);
if (property) {
element[property] = value;
}
}
else if (this.isCheckedElement(element)) {
element.checked = Boolean(value);
}
else {
_super.prototype.writeValue.call(this, value);
}
this.isWritingValue = false;
};
/**
* Listen for custom element events and notify Angular of any changes.
*
* @param event the change event
*/
OrigamiControlValueAccessor.prototype.onChangedEvent = function (event) {
if (!this.isWritingValue) {
var element = this.elementRef.nativeElement;
var changed = false;
switch (event.type) {
case 'selected-items-changed':
case 'selected-item-changed': {
var property = this.getSelectableProperty(element);
changed = property === 'selectedItems' || property === 'selectedItem';
break;
}
case 'selected-values-changed':
case 'selected-changed': {
var property = this.getSelectableProperty(element);
changed = property === 'selectedValues' || property === 'selected';
break;
}
default:
changed = true;
}
if (changed) {
var property = void 0;
if (this.isMultiSelectable(element) || this.isSelectable(element)) {
// property will be defined if we reach this since changed can only
// be true if the property is defined for selectable elements
property = this.getSelectableProperty(element);
}
else if (this.isCheckedElement(element)) {
property = 'checked';
}
else {
property = 'value';
}
// Don't use `event.detail.value`, since we cannot assume that all
// change events will provide that. Additionally, some event details
// may be splices of an array or object instead of the current value.
this.onChange(element[property]);
}
}
};
/**
* Listen for `invalid` property changes. Some elements, such as
* `<vaadin-date-picker>` have multiple "values". Setting the primary value
* (ex. the date string) may result in a temporarily invalid element until
* subsequent values (ex. the selected date) have been updated.
*
* Since this value accessor only listens for value changes, it may not be
* notified of the change in validity. This listener will listen for any
* explicity validity changes from the element and re-evaluate a control's
* validity if it and the element's validity are out of sync.
*/
OrigamiControlValueAccessor.prototype.onInvalidChanged = function () {
if (!this.ignoreInvalidChanges) {
var element = this.elementRef.nativeElement;
if (this.isValidatable(element) &&
this.control &&
this.control.invalid !== element.invalid) {
this.ignoreInvalidChanges = true;
this.control.updateValueAndValidity();
this.ignoreInvalidChanges = false;
}
}
};
/**
* Determines whether or not an element is checkbox-like.
*
* @param element the element to check
*/
OrigamiControlValueAccessor.prototype.isCheckedElement = function (element) {
return this.isPropertyDefined(element, 'checked');
};
/**
* Determines whether or not an element is selectable-like.
*
* @param element the element to check
*/
OrigamiControlValueAccessor.prototype.isSelectable = function (element) {
return (this.isPropertyDefined(element, 'selected') ||
this.isPropertyDefined(element, 'selectedItem'));
};
/**
* Determines whether or not an element is multi selectable-like.
*
* @param element the element to check
*/
OrigamiControlValueAccessor.prototype.isMultiSelectable = function (element) {
if (element &&
(this.isPropertyDefined(element, 'selectedValues') ||
this.isPropertyDefined(element, 'selectedItems'))) {
return this.isSelectable(element) ? element.multi === true : true;
}
else {
return false;
}
};
/**
* Determines whether or not an element is validatable-like.
*
* @param element the element to check
*/
OrigamiControlValueAccessor.prototype.isValidatable = function (element) {
return this.isPropertyDefined(element, 'invalid');
};
OrigamiControlValueAccessor.prototype.shouldUseValidate = function (element) {
if (typeof element.validate === 'function') {
// Some element's (such as `<vaadin-text-field>`) may not actually mutate
// the `invalid` property when `validate()` is called. In these
// situations, it's possible for Angular to set an element as invalid and
// never be able to recover since the element's `validate()` will always
// report it is invalid.
//
// In these situations, Origami should ignore the element's validate()
// function.
this.ignoreInvalidChanges = true;
var wasInvalid = element.invalid;
// If the element does mutate `invalid`, ask it to do so first to get a
// baseline.
element.validate();
// When `validate()` is called next, we will know if the element mutates
// `invalid` if the expected value matches `invalid` after changing
// `invalid` to something else.
var expected = element.invalid;
element.invalid = !element.invalid;
element.validate();
var validateMutatesInvalid = element.invalid === expected;
element.invalid = wasInvalid;
this.ignoreInvalidChanges = false;
return validateMutatesInvalid;
}
else {
return false;
}
};
/**
* Determines whether or not a property is defined anywhere in the provided
* element's prototype chain.
*
* @param element the element to check
* @param property the property to check for
*/
OrigamiControlValueAccessor.prototype.isPropertyDefined = function (element, property) {
return !!element && property in element;
};
/**
* Retrieves the property name of the selectable or multi-selectable element
* that should be updated. This method will use defined properties and the
* value type to determine which property should be used. If it cannot
* determine which property to use, it will return undefined.
*
* @param element the element to get the property for
* @param value a value for the element's property
* @returns the property name, or undefined if it cannot be determined
*/
OrigamiControlValueAccessor.prototype.getSelectableProperty = function (element, value) {
var isMulti = this.isMultiSelectable(element);
var valueProp = isMulti ? 'selectedItems' : 'selectedItem';
var indexProp = isMulti ? 'selectedValues' : 'selected';
if (typeof this.useSelectableValueProp !== 'boolean') {
// Determine whether we should be setting the index or value property for
// a selectable element
var hasValueProp = valueProp in element;
var hasIndexProp = indexProp in element;
if (hasValueProp && !hasIndexProp) {
this.useSelectableValueProp = true;
}
else if (!hasValueProp && hasIndexProp) {
this.useSelectableValueProp = false;
}
else if (typeof value !== 'undefined' && value !== null) {
var previousValue = element[valueProp];
// When the element has both properties, try to set it to the value
// property first. If it fails, then use the index property
try {
element[valueProp] = value;
}
catch (error) {
// Could throw if the value is an unexpected type
}
// Check to see if the value we set it to is still accurate. If it's
// not then the element silently rejected the new value.
this.useSelectableValueProp = element[valueProp] === value;
element[valueProp] = previousValue;
}
else {
return undefined;
}
}
if (element.itemValuePath) {
// <vaadin-combo-box> will want to use selectedItem for object values.
// However, if `itemValuePath` is set then the control value is not the
// item itself, but the `value` property.
return 'value';
}
else {
return this.useSelectableValueProp ? valueProp : indexProp;
}
};
OrigamiControlValueAccessor.ctorParameters = function () { return [
{ type: core.ElementRef },
{ type: core.Injector },
{ type: core.Renderer2 },
{ type: Boolean, decorators: [{ type: core.Optional }, { type: core.Inject, args: [forms.COMPOSITION_BUFFER_MODE,] }] }
]; };
__decorate([
core.Input()
], OrigamiControlValueAccessor.prototype, "isInvalid", void 0);
__decorate([
core.Input()
], OrigamiControlValueAccessor.prototype, "validationErrorsKey", void 0);
__decorate([
core.HostListener('selected-items-changed', ['$event']),
core.HostListener('selected-item-changed', ['$event']),
core.HostListener('selected-values-changed', ['$event']),
core.HostListener('selected-changed', ['$event']),
core.HostListener('checked-changed', ['$event']),
core.HostListener('value-changed', ['$event'])
], OrigamiControlValueAccessor.prototype, "onChangedEvent", null);
__decorate([
core.HostListener('invalid-changed')
], OrigamiControlValueAccessor.prototype, "onInvalidChanged", null);
OrigamiControlValueAccessor = __decorate([
core.Directive({
selector: '[ngModel][origami],[formControlName][origami],[formControl][origami]',
providers: [ORIGAMI_CONTROL_VALUE_ACCESSOR]
}),
__param(3, core.Optional()),
__param(3, core.Inject(forms.COMPOSITION_BUFFER_MODE))
], OrigamiControlValueAccessor);
return OrigamiControlValueAccessor;
}(forms.DefaultValueAccessor));
/**
* Provides support for template and reactive Angular form directives and
* custom elements.
*/
var OrigamiFormsModule = /** @class */ (function () {
function OrigamiFormsModule() {
}
OrigamiFormsModule = __decorate([
core.NgModule({
declarations: [OrigamiControlValueAccessor],
exports: [OrigamiControlValueAccessor]
})
], OrigamiFormsModule);
return OrigamiFormsModule;
}());
exports.ORIGAMI_CONTROL_VALUE_ACCESSOR = ORIGAMI_CONTROL_VALUE_ACCESSOR;
exports.OrigamiControlValueAccessor = OrigamiControlValueAccessor;
exports.OrigamiFormsModule = OrigamiFormsModule;
Object.defineProperty(exports, '__esModule', { value: true });
})));
//# sourceMappingURL=origami-forms.umd.js.map