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/**
* @file Functionality for the plugin install screens.
*
* @output wp-admin/js/plugin-install.js
*/
/* global tb_click, tb_remove, tb_position */
jQuery( function( $ ) {
var tbWindow,
$iframeBody,
$tabbables,
$firstTabbable,
$lastTabbable,
$focusedBefore = $(),
$uploadViewToggle = $( '.upload-view-toggle' ),
$wrap = $ ( '.wrap' ),
$body = $( document.body );
window.tb_position = function() {
var width = $( window ).width(),
H = $( window ).height() - ( ( 792 < width ) ? 60 : 20 ),
W = ( 792 < width ) ? 772 : width - 20;
tbWindow = $( '#TB_window' );
if ( tbWindow.length ) {
tbWindow.width( W ).height( H );
$( '#TB_iframeContent' ).width( W ).height( H );
tbWindow.css({
'margin-left': '-' + parseInt( ( W / 2 ), 10 ) + 'px'
});
if ( typeof document.body.style.maxWidth !== 'undefined' ) {
tbWindow.css({
'top': '30px',
'margin-top': '0'
});
}
}
return $( 'a.thickbox' ).each( function() {
var href = $( this ).attr( 'href' );
if ( ! href ) {
return;
}
href = href.replace( /&width=[0-9]+/g, '' );
href = href.replace( /&height=[0-9]+/g, '' );
$(this).attr( 'href', href + '&width=' + W + '&height=' + ( H ) );
});
};
$( window ).on( 'resize', function() {
tb_position();
});
/*
* Custom events: when a Thickbox iframe has loaded and when the Thickbox
* modal gets removed from the DOM.
*/
$body
.on( 'thickbox:iframe:loaded', tbWindow, function() {
/*
* Return if it's not the modal with the plugin details iframe. Other
* thickbox instances might want to load an iframe with content from
* an external domain. Avoid to access the iframe contents when we're
* not sure the iframe loads from the same domain.
*/
if ( ! tbWindow.hasClass( 'plugin-details-modal' ) ) {
return;
}
iframeLoaded();
})
.on( 'thickbox:removed', function() {
// Set focus back to the element that opened the modal dialog.
// Note: IE 8 would need this wrapped in a fake setTimeout `0`.
$focusedBefore.trigger( 'focus' );
});
function iframeLoaded() {
var $iframe = tbWindow.find( '#TB_iframeContent' );
// Get the iframe body.
$iframeBody = $iframe.contents().find( 'body' );
// Get the tabbable elements and handle the keydown event on first load.
handleTabbables();
// Set initial focus on the "Close" button.
$firstTabbable.trigger( 'focus' );
/*
* When the "Install" button is disabled (e.g. the Plugin is already installed)
* then we can't predict where the last focusable element is. We need to get
* the tabbable elements and handle the keydown event again and again,
* each time the active tab panel changes.
*/
$( '#plugin-information-tabs a', $iframeBody ).on( 'click', function() {
handleTabbables();
});
// Close the modal when pressing Escape.
$iframeBody.on( 'keydown', function( event ) {
if ( 27 !== event.which ) {
return;
}
tb_remove();
});
}
/*
* Get the tabbable elements and detach/attach the keydown event.
* Called after the iframe has fully loaded so we have all the elements we need.
* Called again each time a Tab gets clicked.
* @todo Consider to implement a WordPress general utility for this and don't use jQuery UI.
*/
function handleTabbables() {
var $firstAndLast;
// Get all the tabbable elements.
$tabbables = $( ':tabbable', $iframeBody );
// Our first tabbable element is always the "Close" button.
$firstTabbable = tbWindow.find( '#TB_closeWindowButton' );
// Get the last tabbable element.
$lastTabbable = $tabbables.last();
// Make a jQuery collection.
$firstAndLast = $firstTabbable.add( $lastTabbable );
// Detach any previously attached keydown event.
$firstAndLast.off( 'keydown.wp-plugin-details' );
// Attach again the keydown event on the first and last focusable elements.
$firstAndLast.on( 'keydown.wp-plugin-details', function( event ) {
constrainTabbing( event );
});
}
// Constrain tabbing within the plugin modal dialog.
function constrainTabbing( event ) {
if ( 9 !== event.which ) {
return;
}
if ( $lastTabbable[0] === event.target && ! event.shiftKey ) {
event.preventDefault();
$firstTabbable.trigger( 'focus' );
} else if ( $firstTabbable[0] === event.target && event.shiftKey ) {
event.preventDefault();
$lastTabbable.trigger( 'focus' );
}
}
/*
* Open the Plugin details modal. The event is delegated to get also the links
* in the plugins search tab, after the Ajax search rebuilds the HTML. It's
* delegated on the closest ancestor and not on the body to avoid conflicts
* with other handlers, see Trac ticket #43082.
*/
$( '.wrap' ).on( 'click', '.thickbox.open-plugin-details-modal', function( e ) {
// The `data-title` attribute is used only in the Plugin screens.
var title = $( this ).data( 'title' ) ?
wp.i18n.sprintf(
// translators: %s: Plugin name.
wp.i18n.__( 'Plugin: %s' ),
$( this ).data( 'title' )
) :
wp.i18n.__( 'Plugin details' );
e.preventDefault();
e.stopPropagation();
// Store the element that has focus before opening the modal dialog, i.e. the control which opens it.
$focusedBefore = $( this );
tb_click.call(this);
// Set ARIA role, ARIA label, and add a CSS class.
tbWindow
.attr({
'role': 'dialog',
'aria-label': wp.i18n.__( 'Plugin details' )
})
.addClass( 'plugin-details-modal' );
// Set title attribute on the iframe.
tbWindow.find( '#TB_iframeContent' ).attr( 'title', title );
});
/* Plugin install related JS */
$( '#plugin-information-tabs a' ).on( 'click', function( event ) {
var tab = $( this ).attr( 'name' );
event.preventDefault();
// Flip the tab.
$( '#plugin-information-tabs a.current' ).removeClass( 'current' );
$( this ).addClass( 'current' );
// Only show the fyi box in the description section, on smaller screen,
// where it's otherwise always displayed at the top.
if ( 'description' !== tab && $( window ).width() < 772 ) {
$( '#plugin-information-content' ).find( '.fyi' ).hide();
} else {
$( '#plugin-information-content' ).find( '.fyi' ).show();
}
// Flip the content.
$( '#section-holder div.section' ).hide(); // Hide 'em all.
$( '#section-' + tab ).show();
});
/*
* When a user presses the "Upload Plugin" button, show the upload form in place
* rather than sending them to the devoted upload plugin page.
* The `?tab=upload` page still exists for no-js support and for plugins that
* might access it directly. When we're in this page, let the link behave
* like a link. Otherwise we're in the normal plugin installer pages and the
* link should behave like a toggle button.
*/
if ( ! $wrap.hasClass( 'plugin-install-tab-upload' ) ) {
$uploadViewToggle
.attr({
role: 'button',
'aria-expanded': 'false'
})
.on( 'click', function( event ) {
event.preventDefault();
$body.toggleClass( 'show-upload-view' );
$uploadViewToggle.attr( 'aria-expanded', $body.hasClass( 'show-upload-view' ) );
});
}
});