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View = require( './View' ),
header = require( './headers' ).header,
Anchor = require( './Anchor' ),
util = require( './util' ),
browser = require( './Browser' ).getSingleton();
/**
* Mobile modal window
*
* @uses Icon
* @uses Button
* @fires Overlay#hide
*/
class Overlay extends View {
/**
* @param {Object} props
* @param {Object} props.events - custom events to be bound to the overlay.
* @param {boolean} [props.headerChrome] Whether the header has chrome.
* @param {View[]} [props.headerActions] children (usually buttons or icons)
* that should be placed in the header actions. Ignored when `headers` used.
* @param {string} [props.heading] heading for the overlay header. Use `headers` where
* overlays require more than one header. Ignored when `headers` used.
* @param {boolean} props.noHeader renders an overlay without a header
* @param {Element[]} [props.headers] allows overlays to have more than one
* header. When used it is an array of jQuery Objects representing
* headers created via the header util function. It is expected that only one of these
* should be visible. If undefined, headerActions and heading is used.
* @param {Object} [props.footerAnchor] options for an optional Anchor
* that can appear in the footer
* @param {Function} props.onBeforeExit allows a consumer to prevent exits in certain
* situations. This callback gets the following parameters:
* - 1) the exit function which should be run after the consumer has made their changes.
* - 2) the cancel function which should be run if the consumer explicitly changes their mind
*/
constructor( props ) {
super(
util.extend(
true,
{
headerChrome: false,
className: 'overlay'
},
props,
{
events: util.extend(
{
// FIXME: Remove .initial-header selector
'click .cancel, .confirm, .initial-header .back': 'onExitClick',
click: ( ev ) => ev.stopPropagation()
},
props.events
)
}
)
);
}
get template() {
return util.template( `
{{^noHeader}}
<div class="overlay-header-container header-container{{#headerChrome}}
header-chrome{{/headerChrome}} position-fixed">
</div>
{{/noHeader}}
<div class="overlay-content">
{{>content}}
</div>
<div class="overlay-footer-container position-fixed"></div>
` );
}
get isIos() {
return browser.isIos();
}
set hideTimeout( timeout ) {
this._hideTimeout = timeout;
}
get hideTimeout() {
return this._hideTimeout;
}
/**
* Shows the spinner right to the input field.
*
* @memberof module:mobile.startup/Overlay
* @instance
* @method
*/
showSpinner() {
this.$el.find( '.spinner' ).removeClass( 'hidden' );
}
/**
* Hide the spinner near to the input field.
*
* @memberof module:mobile.startup/Overlay
* @instance
* @method
*/
hideSpinner() {
this.$el.find( '.spinner' ).addClass( 'hidden' );
}
/**
* @inheritdoc
* @memberof module:mobile.startup/Overlay
* @instance
*/
postRender() {
const footerAnchor = this.options.footerAnchor;
this.$overlayContent = this.$el.find( '.overlay-content' );
Iif ( this.isIos ) {
this.$el.addClass( 'overlay-ios' );
}
Iif ( footerAnchor ) {
this.$el.find( '.overlay-footer-container' ).append( new Anchor( footerAnchor ).$el );
}
const headers = this.options.headers || [
header(
this.options.heading,
this.options.headerActions
)
];
this.$el.find( '.overlay-header-container' ).append( headers );
}
/**
* ClickBack event handler
*
* @memberof module:mobile.startup/Overlay
* @instance
* @param {Object} ev event object
*/
onExitClick( ev ) {
const exit = () => {
this.hide();
};
ev.preventDefault();
ev.stopPropagation();
if ( this.options.onBeforeExit ) {
this.options.onBeforeExit( exit, () => {
} );
} else {
exit();
}
}
/**
* Attach overlay to current view and show it.
*
* @memberof module:mobile.startup/Overlay
* @instance
*/
show() {
const $html = util.getDocument();
this.scrollTop = window.pageYOffset;
$html.addClass( 'overlay-enabled' );
// skip the URL bar if possible
window.scrollTo( 0, 1 );
this.$el.addClass( 'visible' );
// If .hide() was called earlier, and it scheduled an asynchronous detach
// but it hasn't happened yet, cancel it
Eif ( this.hideTimeout !== null ) {
clearTimeout( this.hideTimeout );
this.hideTimeout = null;
}
}
/**
* Detach the overlay from the current view
* Should not be overriden as soon to be deprecated.
*
* @memberof module:mobile.startup/Overlay
* @instance
* @final
* @return {boolean} Whether the overlay was successfully hidden or not
*/
hide() {
util.getDocument().removeClass( 'overlay-enabled' );
// return to last known scroll position
window.scrollTo( window.pageXOffset, this.scrollTop );
// Since the hash change event caused by emitting hide will be detected later
// and to avoid the article being shown during a transition from one overlay to
// another, we regretfully detach the element asynchronously.
this.hideTimeout = setTimeout( () => {
this.$el.detach();
this.hideTimeout = null;
}, 0 );
/**
* Fired when the overlay is closed.
*
* @event Overlay#hide
*/
this.emit( 'hide' );
return true;
}
/**
* Show elements that are selected by the className.
* Also hide .hideable elements
* Can't use jQuery's hide() and show() because show() sets display: block.
* And we want display: table for headers.
*
* @memberof module:mobile.startup/Overlay
* @instance
* @protected
* @param {string} className CSS selector to show
*/
showHidden( className ) {
this.$el.find( '.hideable' ).addClass( 'hidden' );
this.$el.find( className ).removeClass( 'hidden' );
}
}
/**
* Factory method for an overlay with a single child
*
* @memberof module:mobile.startup/Overlay
* @instance
* @protected
* @param {Object} options
* @param {module:mobile.startup/View} view
* @return {module:mobile.startup/Overlay}
*/
Overlay.make = function ( options, view ) {
const overlay = new Overlay( options );
overlay.$el.find( '.overlay-content' ).append( view.$el );
return overlay;
};
/**
* ES5 compatible version of class for backwards compatibility
*
* @param {Object} props
* @deprecated 1.44
* @ignore
*/
function ClassES5( props ) {
mw.log.warn( '[1.44] Extending Overlay class constructor is deprecated. Please use Overlay.make' );
View.ClassES5.call( this, util.extend(
true,
{
headerChrome: false,
className: 'overlay'
},
props,
{
events: util.extend(
{
// FIXME: Remove .initial-header selector
'click .cancel, .confirm, .initial-header .back': 'onExitClick',
click: ( ev ) => ev.stopPropagation()
},
props.events
)
}
) );
}
ClassES5.prototype = Overlay.prototype;
ClassES5.make = Overlay.make;
Overlay.ClassES5 = ClassES5;
module.exports = Overlay;
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