import { Component, ElementRef, HostListener, Renderer, ViewEncapsulation } from '@angular/core';
import { Config } from '../../config/config';
import { NON_TEXT_INPUT_REGEX } from '../../util/dom';
import { BLOCK_ALL, GestureController } from '../../gestures/gesture-controller';
import { isPresent } from '../../util/util';
import { KEY_ENTER, KEY_ESCAPE } from '../../platform/key';
import { NavParams } from '../../navigation/nav-params';
import { Platform } from '../../platform/platform';
import { ViewController } from '../../navigation/view-controller';
/**
* @hidden
*/
export class AlertCmp {
constructor(_viewCtrl, _elementRef, config, gestureCtrl, params, _renderer, _plt) {
this._viewCtrl = _viewCtrl;
this._elementRef = _elementRef;
this._renderer = _renderer;
this._plt = _plt;
// gesture blocker is used to disable gestures dynamically
this.gestureBlocker = gestureCtrl.createBlocker(BLOCK_ALL);
this.d = params.data;
this.mode = this.d.mode || config.get('mode');
this.keyboardResizes = config.getBoolean('keyboardResizes', false);
_renderer.setElementClass(_elementRef.nativeElement, `alert-${this.mode}`, true);
if (this.d.cssClass) {
this.d.cssClass.split(' ').forEach(cssClass => {
// Make sure the class isn't whitespace, otherwise it throws exceptions
if (cssClass.trim() !== '')
_renderer.setElementClass(_elementRef.nativeElement, cssClass, true);
});
}
this.id = (++alertIds);
this.descId = '';
this.hdrId = 'alert-hdr-' + this.id;
this.subHdrId = 'alert-subhdr-' + this.id;
this.msgId = 'alert-msg-' + this.id;
this.activeId = '';
this.lastClick = 0;
if (this.d.message) {
this.descId = this.msgId;
}
else if (this.d.subTitle) {
this.descId = this.subHdrId;
}
if (!this.d.message) {
this.d.message = '';
}
}
ionViewDidLoad() {
// normalize the data
const data = this.d;
data.buttons = data.buttons.map(button => {
if (typeof button === 'string') {
return { text: button };
}
return button;
});
data.inputs = data.inputs.map((input, index) => {
let r = {
type: input.type || 'text',
name: isPresent(input.name) ? input.name : index + '',
placeholder: isPresent(input.placeholder) ? input.placeholder : '',
value: isPresent(input.value) ? input.value : '',
label: input.label,
checked: !!input.checked,
disabled: !!input.disabled,
id: isPresent(input.id) ? input.id : `alert-input-${this.id}-${index}`,
handler: isPresent(input.handler) ? input.handler : null,
min: isPresent(input.min) ? input.min : null,
max: isPresent(input.max) ? input.max : null
};
return r;
});
// An alert can be created with several different inputs. Radios,
// checkboxes and inputs are all accepted, but they cannot be mixed.
const inputTypes = [];
data.inputs.forEach(input => {
if (inputTypes.indexOf(input.type) < 0) {
inputTypes.push(input.type);
}
});
if (inputTypes.length > 1 && (inputTypes.indexOf('checkbox') > -1 || inputTypes.indexOf('radio') > -1)) {
console.warn(`Alert cannot mix input types: ${(inputTypes.join('/'))}. Please see alert docs for more info.`);
}
this.inputType = inputTypes.length ? inputTypes[0] : null;
const checkedInput = this.d.inputs.find(input => input.checked);
if (checkedInput) {
this.activeId = checkedInput.id;
}
const hasTextInput = (this.d.inputs.length && this.d.inputs.some(i => !(NON_TEXT_INPUT_REGEX.test(i.type))));
if (!this.keyboardResizes && hasTextInput && this._plt.is('mobile')) {
// this alert has a text input and it's on a mobile device so we should align
// the alert up high because we need to leave space for the virtual keboard
// this also helps prevent the layout getting all messed up from
// the browser trying to scroll the input into a safe area
this._renderer.setElementClass(this._elementRef.nativeElement, 'alert-top', true);
}
}
ionViewWillEnter() {
this.gestureBlocker.block();
}
ionViewDidLeave() {
this.gestureBlocker.unblock();
}
ionViewDidEnter() {
// set focus on the first input or button in the alert
// note that this does not always work and bring up the keyboard on
// devices since the focus command must come from the user's touch event
// and ionViewDidEnter is not in the same callstack as the touch event :(
const focusableEle = this._elementRef.nativeElement.querySelector('input,button');
if (focusableEle) {
setTimeout(() => focusableEle.focus());
}
this.enabled = true;
}
keyUp(ev) {
if (this.enabled && this._viewCtrl.isLast()) {
if (ev.keyCode === KEY_ENTER) {
if (this.lastClick + 1000 < Date.now()) {
// do not fire this click if there recently was already a click
// this can happen when the button has focus and used the enter
// key to click the button. However, both the click handler and
// this keyup event will fire, so only allow one of them to go.
(void 0) /* console.debug */;
let button = this.d.buttons[this.d.buttons.length - 1];
this.btnClick(button);
}
}
else if (ev.keyCode === KEY_ESCAPE) {
(void 0) /* console.debug */;
this.bdClick();
}
}
}
btnClick(button) {
if (!this.enabled) {
return;
}
// keep the time of the most recent button click
this.lastClick = Date.now();
let shouldDismiss = true;
if (button.handler) {
// a handler has been provided, execute it
// pass the handler the values from the inputs
if (button.handler(this.getValues()) === false) {
// if the return value of the handler is false then do not dismiss
shouldDismiss = false;
}
}
if (shouldDismiss) {
this.dismiss(button.role);
}
}
rbClick(checkedInput) {
if (this.enabled) {
this.d.inputs.forEach(input => {
input.checked = (checkedInput === input);
});
this.activeId = checkedInput.id;
if (checkedInput.handler) {
checkedInput.handler(checkedInput);
}
}
}
cbClick(checkedInput) {
if (this.enabled) {
checkedInput.checked = !checkedInput.checked;
if (checkedInput.handler) {
checkedInput.handler(checkedInput);
}
}
}
bdClick() {
if (this.enabled && this.d.enableBackdropDismiss) {
var cancelBtn = this.d.buttons.find(b => b.role === 'cancel');
if (cancelBtn) {
this.btnClick(cancelBtn);
}
else {
this.dismiss('backdrop');
}
}
}
dismiss(role) {
const opts = {
minClickBlockDuration: 400
};
return this._viewCtrl.dismiss(this.getValues(), role, opts);
}
getValues() {
if (this.inputType === 'radio') {
// this is an alert with radio buttons (single value select)
// return the one value which is checked, otherwise undefined
const checkedInput = this.d.inputs.find(i => i.checked);
return checkedInput ? checkedInput.value : undefined;
}
if (this.inputType === 'checkbox') {
// this is an alert with checkboxes (multiple value select)
// return an array of all the checked values
return this.d.inputs.filter(i => i.checked).map(i => i.value);
}
if (this.d.inputs.length === 0) {
// this is an alert without any options/inputs at all
return undefined;
}
// this is an alert with text inputs
// return an object of all the values with the input name as the key
const values = {};
this.d.inputs.forEach(i => {
values[i.name] = i.value;
});
return values;
}
ngOnDestroy() {
(void 0) /* assert */;
this.gestureBlocker.destroy();
}
}
AlertCmp.decorators = [
{ type: Component, args: [{
selector: 'ion-alert',
template: '' +
'