phodal/congee

/**
 * @license Copyright (c) 2003-2015, CKSource - Frederico Knabben. All rights reserved.
 * For licensing, see LICENSE.md or http://ckeditor.com/license
 */

CKEDITOR.plugins.add( 'popup' );

CKEDITOR.tools.extend( CKEDITOR.editor.prototype, {
    /**
     * Opens Browser in a popup. The `width` and `height` parameters accept
     * numbers (pixels) or percent (of screen size) values.
     *
     * @member CKEDITOR.editor
     * @param {String} url The url of the external file browser.
     * @param {Number/String} [width='80%'] Popup window width.
     * @param {Number/String} [height='70%'] Popup window height.
     * @param {String} [options='location=no,menubar=no,toolbar=no,dependent=yes,minimizable=no,modal=yes,alwaysRaised=yes,resizable=yes,scrollbars=yes']
     * Popup window features.
     */
    popup: function( url, width, height, options ) {
        width = width || '80%';
        height = height || '70%';

        if ( typeof width == 'string' && width.length > 1 && width.substr( width.length - 1, 1 ) == '%' )
            width = parseInt( window.screen.width * parseInt( width, 10 ) / 100, 10 );

        if ( typeof height == 'string' && height.length > 1 && height.substr( height.length - 1, 1 ) == '%' )
            height = parseInt( window.screen.height * parseInt( height, 10 ) / 100, 10 );

        if ( width < 640 )
            width = 640;

        if ( height < 420 )
            height = 420;

        var top = parseInt( ( window.screen.height - height ) / 2, 10 ),
            left = parseInt( ( window.screen.width - width ) / 2, 10 );

        options = ( options || 'location=no,menubar=no,toolbar=no,dependent=yes,minimizable=no,modal=yes,alwaysRaised=yes,resizable=yes,scrollbars=yes' ) + ',width=' + width +
            ',height=' + height +
            ',top=' + top +
            ',left=' + left;

        var popupWindow = window.open( '', null, options, true );

        // Blocked by a popup blocker.
        if ( !popupWindow )
            return false;

        try {
            // Chrome is problematic with moveTo/resizeTo, but it's not really needed here (#8855).
            var ua = navigator.userAgent.toLowerCase();
            if ( ua.indexOf( ' chrome/' ) == -1 ) {
                popupWindow.moveTo( left, top );
                popupWindow.resizeTo( width, height );
            }
            popupWindow.focus();
            popupWindow.location.href = url;
        } catch ( e ) {
            popupWindow = window.open( url, null, options, true );
        }

        return true;
    }
} );