221 lines
6.8 KiB
JavaScript
221 lines
6.8 KiB
JavaScript
/* global plugininstallL10n, tb_click, tb_remove */
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/**
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* @file Functionality for the plugin install screens.
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*/
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var tb_position;
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jQuery( document ).ready( function( $ ) {
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var tbWindow,
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$iframeBody,
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$tabbables,
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$firstTabbable,
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$lastTabbable,
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$focusedBefore = $(),
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$uploadViewToggle = $( '.upload-view-toggle' ),
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$wrap = $ ( '.wrap' ),
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$body = $( document.body );
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tb_position = function() {
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var width = $( window ).width(),
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H = $( window ).height() - ( ( 792 < width ) ? 60 : 20 ),
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W = ( 792 < width ) ? 772 : width - 20;
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tbWindow = $( '#TB_window' );
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if ( tbWindow.length ) {
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tbWindow.width( W ).height( H );
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$( '#TB_iframeContent' ).width( W ).height( H );
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tbWindow.css({
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'margin-left': '-' + parseInt( ( W / 2 ), 10 ) + 'px'
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});
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if ( typeof document.body.style.maxWidth !== 'undefined' ) {
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tbWindow.css({
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'top': '30px',
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'margin-top': '0'
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});
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}
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}
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return $( 'a.thickbox' ).each( function() {
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var href = $( this ).attr( 'href' );
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if ( ! href ) {
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return;
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}
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href = href.replace( /&width=[0-9]+/g, '' );
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href = href.replace( /&height=[0-9]+/g, '' );
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$(this).attr( 'href', href + '&width=' + W + '&height=' + ( H ) );
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});
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};
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$( window ).resize( function() {
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tb_position();
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});
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/*
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* Custom events: when a Thickbox iframe has loaded and when the Thickbox
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* modal gets removed from the DOM.
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*/
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$body
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.on( 'thickbox:iframe:loaded', tbWindow, function() {
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/*
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* Return if it's not the modal with the plugin details iframe. Other
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* thickbox instances might want to load an iframe with content from
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* an external domain. Avoid to access the iframe contents when we're
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* not sure the iframe loads from the same domain.
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*/
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if ( ! tbWindow.hasClass( 'plugin-details-modal' ) ) {
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return;
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}
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iframeLoaded();
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})
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.on( 'thickbox:removed', function() {
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// Set focus back to the element that opened the modal dialog.
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// Note: IE 8 would need this wrapped in a fake setTimeout `0`.
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$focusedBefore.focus();
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});
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function iframeLoaded() {
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var $iframe = tbWindow.find( '#TB_iframeContent' );
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// Get the iframe body.
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$iframeBody = $iframe.contents().find( 'body' );
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// Get the tabbable elements and handle the keydown event on first load.
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handleTabbables();
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// Set initial focus on the "Close" button.
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$firstTabbable.focus();
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/*
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* When the "Install" button is disabled (e.g. the Plugin is already installed)
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* then we can't predict where the last focusable element is. We need to get
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* the tabbable elements and handle the keydown event again and again,
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* each time the active tab panel changes.
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*/
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$( '#plugin-information-tabs a', $iframeBody ).on( 'click', function() {
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handleTabbables();
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});
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// Close the modal when pressing Escape.
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$iframeBody.on( 'keydown', function( event ) {
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if ( 27 !== event.which ) {
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return;
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}
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tb_remove();
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});
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}
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/*
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* Get the tabbable elements and detach/attach the keydown event.
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* Called after the iframe has fully loaded so we have all the elements we need.
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* Called again each time a Tab gets clicked.
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* @todo Consider to implement a WordPress general utility for this and don't use jQuery UI.
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*/
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function handleTabbables() {
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var $firstAndLast;
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// Get all the tabbable elements.
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$tabbables = $( ':tabbable', $iframeBody );
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// Our first tabbable element is always the "Close" button.
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$firstTabbable = tbWindow.find( '#TB_closeWindowButton' );
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// Get the last tabbable element.
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$lastTabbable = $tabbables.last();
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// Make a jQuery collection.
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$firstAndLast = $firstTabbable.add( $lastTabbable );
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// Detach any previously attached keydown event.
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$firstAndLast.off( 'keydown.wp-plugin-details' );
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// Attach again the keydown event on the first and last focusable elements.
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$firstAndLast.on( 'keydown.wp-plugin-details', function( event ) {
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constrainTabbing( event );
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});
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}
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// Constrain tabbing within the plugin modal dialog.
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function constrainTabbing( event ) {
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if ( 9 !== event.which ) {
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return;
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}
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if ( $lastTabbable[0] === event.target && ! event.shiftKey ) {
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event.preventDefault();
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$firstTabbable.focus();
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} else if ( $firstTabbable[0] === event.target && event.shiftKey ) {
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event.preventDefault();
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$lastTabbable.focus();
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}
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}
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/*
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* Open the Plugin details modal. The event is delegated to get also the links
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* in the plugins search tab, after the AJAX search rebuilds the HTML. It's
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* delegated on the closest ancestor and not on the body to avoid conflicts
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* with other handlers, see Trac ticket #43082.
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*/
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$( '.wrap' ).on( 'click', '.thickbox.open-plugin-details-modal', function( e ) {
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// The `data-title` attribute is used only in the Plugin screens.
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var title = $( this ).data( 'title' ) ? plugininstallL10n.plugin_information + ' ' + $( this ).data( 'title' ) : plugininstallL10n.plugin_modal_label;
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e.preventDefault();
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e.stopPropagation();
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// Store the element that has focus before opening the modal dialog, i.e. the control which opens it.
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$focusedBefore = $( this );
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tb_click.call(this);
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// Set ARIA role, ARIA label, and add a CSS class.
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tbWindow
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.attr({
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'role': 'dialog',
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'aria-label': plugininstallL10n.plugin_modal_label
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})
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.addClass( 'plugin-details-modal' );
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// Set title attribute on the iframe.
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tbWindow.find( '#TB_iframeContent' ).attr( 'title', title );
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});
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/* Plugin install related JS */
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$( '#plugin-information-tabs a' ).click( function( event ) {
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var tab = $( this ).attr( 'name' );
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event.preventDefault();
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// Flip the tab
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$( '#plugin-information-tabs a.current' ).removeClass( 'current' );
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$( this ).addClass( 'current' );
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// Only show the fyi box in the description section, on smaller screen, where it's otherwise always displayed at the top.
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if ( 'description' !== tab && $( window ).width() < 772 ) {
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$( '#plugin-information-content' ).find( '.fyi' ).hide();
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} else {
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$( '#plugin-information-content' ).find( '.fyi' ).show();
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}
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// Flip the content.
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$( '#section-holder div.section' ).hide(); // Hide 'em all.
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$( '#section-' + tab ).show();
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});
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/*
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* When a user presses the "Upload Plugin" button, show the upload form in place
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* rather than sending them to the devoted upload plugin page.
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* The `?tab=upload` page still exists for no-js support and for plugins that
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* might access it directly. When we're in this page, let the link behave
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* like a link. Otherwise we're in the normal plugin installer pages and the
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* link should behave like a toggle button.
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*/
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if ( ! $wrap.hasClass( 'plugin-install-tab-upload' ) ) {
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$uploadViewToggle
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.attr({
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role: 'button',
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'aria-expanded': 'false'
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})
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.on( 'click', function( event ) {
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event.preventDefault();
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$body.toggleClass( 'show-upload-view' );
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$uploadViewToggle.attr( 'aria-expanded', $body.hasClass( 'show-upload-view' ) );
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});
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}
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});
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