bootstrap强化模态窗口插件

index.html

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<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>bootstrap 4模态窗口增强插件 </title>
 
    <link rel="stylesheet" href="http://cdn.bootstrapmb.com/bootstrap/4.3.1/css/bootstrap.min.css">
    <link href="./src/css/simple-bs-dialog.css" rel="stylesheet" type="text/css" />
    <script src="http://cdn.bootstrapmb.com/jquery/jquery-3.3.1.min.js"></script>
    <script src="http://cdn.bootstrapmb.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
    <script src="https://cdn.jsdelivr.net/gh/google/code-prettify@master/loader/run_prettify.js"></script>
    <script src="./src/js/simple-bs-dialog.js"></script>
    <style>
        .login-dialog .modal-header {
            color: #0480be;
        }
    </style>
</head>
<body>
    <div class="container">
        <h2>Make use of Bootstrap's 4 Modal in a more friendly way.</h2>
        <hr />
 
        <h3>Full example</h3>
        <p>Full functionality of SimpleBsDialog.</p>
 
        <div class="source-code runnable">
            <!--
            SimpleBsDialog.show({
                width: '900px',
                autoWidth: false,
                height: '30%',
                autoHeight: true,
                title: 'Simple Bootstrap 4 Dialog (v' + SimpleBsDialog.version + ')',
                closable: true,
                spinner: true,
                spinnerIcon: '<span class="spinner-border text-primary" role="status"></span>',
                closeByBackdrop: true,
                closeByKeyboard: true,
                html: '',
                cssClass: 'login-dialog',
                buttons: [{
                        id: 'btn-ok',
                        label: 'OK',
                        cssClass: 'btn-primary',
                        action: function(dialogRef) {
                            console.log('OK button pressed!');
                            dialogRef.close();
                        },
                    }, {
                        id: 'btn-cancel',
                        label: 'Cancel',
                        cssClass: 'btn-warning',
                        action: function(dialogRef) {
                            console.log('Cancel button pressed!');
                            dialogRef.close();
                        },
                    },
                ],
                onShow: function(dialogRef) {
                    console.log('onShow');
 
                    dialogRef.getButtons().prop('disabled', true);
                },
                onShown: function(dialogRef) {
                    console.log('onShown');
 
                    setTimeout(function() {
                        dialogRef.set({
                            'spinner': false,
                        }).getModalBody().html('Your content goes here...');
 
                        dialogRef.getButtons().prop('disabled', false);
                    }, 1000);
                },
                onHide: function(dialogRef) {
                    console.log('onHide');
                },
                onHidden: function(dialogRef) {
                    console.log('onHidden');
                },
            });
            -->
        </div>
 
        <!-- Available options -->
        <br />
        <a name="available-options"></a>
        <h2>Available options</h2>
        <hr />
        <p>
            Please note that all options described below are <strong>optional</strong>, but you will have a weird dialog if you don't even give it a title to display.
            <br />
            Most options can be set via init options or property setters.
        </p>
        <table class="table table-bordered">
            <thead>
                <tr>
                    <th>
                        Option
                    </th>
                    <th>
                        Type
                    </th>
                    <th>
                        Default value
                    </th>
                    <th>
                        Description
                    </th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>width</td>
                    <td>
                        String or Integer
                    </td>
                    <td>
                        500
                    </td>
                    <td>
                        The dialog's width in pixels or percent. Examples:
                        <div class="source-code runnable">
                            SimpleBsDialog.show({
                            width: '900px',
                            });
                        </div>
                        <hr />
                        <div class="source-code runnable">
                            SimpleBsDialog.show({
                            width: '70%',
                            });
                        </div>
                        <hr />
                        <div class="source-code runnable">
                            SimpleBsDialog.show({
                            width: '600',
                            });
                        </div>
                    </td>
                </tr>
                <tr>
                    <td>autoWidth</td>
                    <td>
                        Boolean
                    </td>
                    <td>
                        false
                    </td>
                    <td>
                        Enables resizing the dialog when the document is resized. It applies only when the 'width' value is set in percent.
                        <div class="source-code runnable">
                            SimpleBsDialog.show({
                            width: '80%',
                            autoWidth: true,
                            });
                        </div>
                    </td>
                </tr>
                <tr>
                    <td>height</td>
                    <td>
                        String or Integer
                    </td>
                    <td>
                        280
                    </td>
                    <td>
                        The dialog's height in pixels or percent. Examples:
                        <div class="source-code runnable">
                            SimpleBsDialog.show({
                            height: '300px',
                            });
                        </div>
                        <hr />
                        <div class="source-code runnable">
                            SimpleBsDialog.show({
                            height: '60%',
                            });
                        </div>
                    </td>
                </tr>
                <tr>
                    <td>autoHeight</td>
                    <td>
                        Boolean
                    </td>
                    <td>
                        false
                    </td>
                    <td>
                        Enables resizing the dialog when the document is resized. It applies only when the 'height' value is set in percent.
                        <div class="source-code runnable">
                            SimpleBsDialog.show({
                            height: '60%',
                            autoHeight: true,
                            });
                        </div>
                    </td>
                </tr>
                <tr>
                    <td>title</td>
                    <td>
                        String
                    </td>
                    <td></td>
                    <td>
                        The dialog's title.
                    </td>
                </tr>
                <tr>
                    <td>closable</td>
                    <td>
                        Boolean
                    </td>
                    <td>
                        true
                    </td>
                    <td>
                        Show|hide the close button at the top right corner.
                    </td>
                </tr>
                <tr>
                    <td>spinner</td>
                    <td>
                        Boolean
                    </td>
                    <td>
                        false
                    </td>
                    <td>
                        Show|hide the spinner icon.
                    </td>
                </tr>
                <tr>
                    <td>spinnerIcon</td>
                    <td>
                        String
                    </td>
                    <td>
                        <div class="source-code"><span class="spinner-border" role="status"></span></div>
                    </td>
                    <td>
                        Set the spinner's icon.
                    </td>
                </tr>
                <tr>
                    <td>closeByBackdrop</td>
                    <td>
                        Boolean
                    </td>
                    <td>
                        true
                    </td>
                    <td>
                        When it's true, you can close it by clicking outside the dialog.
                    </td>
                </tr>
                <tr>
                    <td>closeByKeyboard</td>
                    <td>
                        Boolean
                    </td>
                    <td>
                        true
                    </td>
                    <td>
                        When it's true, you can close it by pressing the ESC key.
                    </td>
                </tr>
                <tr>
                    <td>html</td>
                    <td>
                        String
                    </td>
                    <td></td>
                    <td>
                        The dialog's content.
                    </td>
                </tr>
                <tr>
                    <td>cssClass</td>
                    <td>
                        String
                    </td>
                    <td></td>
                    <td>
                        Additional css classes that will be added to your dialog.
                    </td>
                </tr>
                <tr>
                    <td>buttons</td>
                    <td>
                        Array
                    </td>
                    <td></td>
                    <td>
                        Example:
                        <div class="source-code runnable">
                            SimpleBsDialog.show({
                            buttons: [{
                            id: 'btn-ok',
                            label: 'OK',
                            cssClass: 'btn-primary',
                            action: function(dialogRef) {
                            dialogRef.close();
                            },
                            },
                            ],
                            });
                        </div>
                        <strong>id</strong>: optional, otherwise a random id will be generated.<br />
                        <strong>label</strong>: optional, the button's title.<br />
                        <strong>cssClass</strong>: optional, additional css class to be added to the button.<br />
                        <strong>action</strong>: optional, if provided, the callback will be invoked after the button is clicked, and the dialog instance will be passed to the callback function.<br />
                    </td>
                </tr>
                <tr>
                    <td>onShow</td>
                    <td>
                        function
                    </td>
                    <td></td>
                    <td>
                        If provided, it will be invoked when the dialog is popping up.
                    </td>
                </tr>
                <tr>
                    <td>onShown</td>
                    <td>
                        function
                    </td>
                    <td></td>
                    <td>
                        If provided, it will be invoked when the dialog is popped up.
                    </td>
                </tr>
                <tr>
                    <td>onHide</td>
                    <td>
                        function
                    </td>
                    <td></td>
                    <td>
                        If provided, it will be invoked when the dialog is popping down.
                    </td>
                </tr>
                <tr>
                    <td>onHidden</td>
                    <td>
                        function
                    </td>
                    <td></td>
                    <td>
                        If provided, it will be invoked when the dialog is popped down.
                    </td>
                </tr>
            </tbody>
        </table>
 
        <!-- Available methods -->
        <br />
        <a name="available-methods"></a>
        <h2>Available methods</h2>
        <hr />
        <table class="table table-bordered">
            <thead>
                <tr>
                    <th>
                        Method
                    </th>
                    <th>
                        Description
                    </th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>open()</td>
                    <td>Opens the dialog. Usage: dialogInstance.open().</td>
                </tr>
                <tr>
                    <td>close()</td>
                    <td>Closes the dialog. Usage: dialogInstance.close().</td>
                </tr>
                <tr>
                    <td>get(option)</td>
                    <td>
                        Getter for options. You can get the following options:<br />
                        <strong>width, autoWidth, height, autoHeight, title, closable, spinner, spinnerIcon</strong>
                    </td>
                </tr>
                <tr>
                    <td>set(option, value)</td>
                    <td>
                        Setter for a given option. You can set the following options:<br />
                        <strong>width, autoWidth, height, autoHeight, title, closable, spinner, spinnerIcon</strong>
                    </td>
                </tr>
                <tr>
                    <td>set(options)</td>
                    <td>
                        Setter for many options. You can set the following options:<br />
                        <strong>width, autoWidth, height, autoHeight, title, closable, spinner, spinnerIcon</strong>
                    </td>
                </tr>
                <tr>
                    <td>getModalBody()</td>
                    <td>Returns the raw modal body.</td>
                </tr>
                <tr>
                    <td>getButton(id)</td>
                    <td>Returns a button by id as a jQuery object.</td>
                </tr>
                <tr>
                    <td>getButtons()</td>
                    <td>Returns all available buttons as jQuery objects.</td>
                </tr>
                <tr>
                    <td>SimpleBsDialog.show(options)</td>
                    <td>Creates a new dialog with options, opens it and returns the dialog object.</td>
                </tr>
                <tr>
                    <td>SimpleBsDialog.version</td>
                    <td>Returns the current SimpleBsDialog's version.</td>
                </tr>
            </tbody>
        </table>
 
        <hr />
 
    </div>
 
 
    <script type="text/javascript">
        $(function () {
            $('.source-code').each(function (index) {
                var $section = $(this);
                var code = $(this).html().replace('<!--', '').replace('-->', '');
 
                // Code preview
                var $codePreview = $('<pre class="prettyprint lang-javascript"></pre>');
                $codePreview.text(code);
                $section.html($codePreview);
 
                // Run code
                if ($section.hasClass('runnable')) {
                    var $button = $('<button class="btn btn-primary">Run the code</button>');
                    $button.on('click', { code: code }, function (event) {
                        eval(event.data.code);
                    });
                    $button.insertAfter($section);
                    $('<div class="clearfix" style="margin-bottom: 10px;"></div>').insertAfter($button);
                }
            });
        });
    </script>
</body>
</html>

　simple-bs-dialog.css

.simple-bs-dialog .modal-dialog,
.simple-bs-dialog .modal-content {
  min-height: 200px;
}
 
.simple-bs-dialog .modal-body {
  min-height: 80px;
}
 
.simple-bs-dialog .modal-spinner {
  background: white;
  z-index: 1;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

　　simple-bs-dialog.js

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(function(w, $) {
    'use strict';
 
    // register the main object
    w.SimpleBsDialog = function(options) {
        this.options = $.extend({}, {
            id: newGuid(),
            width: 500,
            autoWidth: false,
            height: 280,
            autoHeight: false,
            title: '',
            closable: true,
            spinner: false,
            spinnerIcon: '<span class="spinner-border" role="status"></span>',
            closeByBackdrop: true,
            closeByKeyboard: true,
            html: '',
            cssClass: '',
            buttons: [],
            onShow: function(dialogRef){},
            onShown: function(dialogRef){},
            onHide: function(dialogRef){},
            onHidden: function(dialogRef){},
        }, options);
 
    };
 
    // private methods
    function newGuid()
    {
        return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
            var r = Math.random() * 16 | 0, v = (c == 'x' ? r : r & 0x03 | 0x08);
 
            return v.toString(16);
        });
    }
 
    function setWidth(e, init)
    {
        var width = 0;
 
        // parse width
        if (e.data.options.width.toString().indexOf('px') >= 0) {
            width = parseInt(e.data.options.width.toString().substring(0, e.data.options.width.toString().indexOf('px')));
        } else if (e.data.options.width.toString().indexOf('%') >= 0) {
            width = parseInt((parseInt(e.data.options.width.toString().substring(0, e.data.options.width.toString().indexOf('%'))) / 100) * $(window).outerWidth(true), 10);
        } else {
            width = parseInt(e.data.options.width);
        }
 
        // set left
        $('#' + e.data.options.id).find('.modal-dialog').css({'margin-left': parseInt(($(window).outerWidth(true) - width) / 2, 10) + 'px'});
 
        // set width
        if (init === true || (e.data.options.autoWidth === true && e.data.options.width.toString().indexOf('%') >= 0)) {
            $('#' + e.data.options.id).find('.modal-content').css({'width': width + 'px'}).find('.modal-body').css({'min-width': (width - 120) + 'px'});
        }
    }
 
    function setHeight(e, init)
    {
        var height = 0;
 
        // parse height
        if (e.data.options.height.toString().indexOf('px') >= 0) {
            height = parseInt(e.data.options.height.toString().substring(0, e.data.options.height.toString().indexOf('px')));
        } else if (e.data.options.height.toString().indexOf('%') >= 0) {
            height = parseInt((parseInt(e.data.options.height.toString().substring(0, e.data.options.height.toString().indexOf('%'))) / 100) * ($(window).outerHeight(true) - parseInt($('#' + e.data.options.id).find('.modal-dialog').css('margin-top'), 10)), 10);
        } else {
            height = parseInt(e.data.options.height);
        }
 
        // set height
        if (init === true || (e.data.options.autoHeight === true && e.data.options.height.toString().indexOf('%') >= 0)) {
            $('#' + e.data.options.id).find('.modal-content').css({'min-height': height + 'px'}).find('.modal-body').css({'min-height': (height - 120) + 'px'});
        }
    }
 
    function setSize(e)
    {
        setWidth(e, false);
        setHeight(e, false);
    }
 
    function validOptions()
    {
        return [
            'width',
            'autoWidth',
            'height',
            'autoHeight',
            'title',
            'closable',
            'spinner',
            'spinnerIcon',
        ];
    }
 
    function parseCssClass(cssClass)
    {
        var cssClasses = cssClass.split(' ');
 
        if (cssClasses.length == 0) {
            return '';
        }
 
        return ' ' + cssClasses.join(' ');
    }
 
    // public methods
    SimpleBsDialog.prototype.open = function()
    {
        // store this
        var dialog = this;
 
        // bootstrap dialog
        $('body').append('<div class="simple-bs-dialog modal fade' + parseCssClass(dialog.options.cssClass) + '" id="' + dialog.options.id + '" tabindex="-1"><div class="modal-dialog"><div class="modal-content"><div class="modal-header"><h5 class="modal-title">' + dialog.options.title + '</h5><button type="button" class="close' + (dialog.options.closable ? '' : ' d-none') + '" data-dismiss="modal">×</button></div><div class="modal-html"><div class="modal-body">' + dialog.options.html + '</div><div class="modal-spinner' + (dialog.options.spinner ? '' : ' d-none') + '">' + dialog.options.spinnerIcon + '</div></div>' + (dialog.options.buttons.length > 0 ? '<div class="modal-footer"></div>' : '') + '</div></div></div>');
 
        // add buttons
        $.each(dialog.options.buttons, function(index, options) {
            var opts = $.extend({}, {
                id: newGuid(),
                label: '',
                cssClass: '',
                action: function(dialogRef){},
            }, options);
 
            var button = $('<button type="button" class="btn btn-default' + (opts.cssClass.length > 0 ? ' ' : '') + opts.cssClass + '" id="' + opts.id + '">' + opts.label + '</button>');
            button.on('click', function(e) {
                opts.action(dialog);
            });
 
            $('#' + dialog.options.id).find('.modal-footer').append(button);
        });
 
        // destroy dom element
        $('#' + dialog.options.id).on('show.bs.modal', function() {
            // initial width
            setWidth({
                data: dialog,
            }, true);
 
            // initial height
            setHeight({
                data: dialog,
            }, true);
 
            // set dialog's auto size
            $(window).on('resize', dialog, setSize);
 
            // onShow event
            dialog.options.onShow(dialog);
        }).on('shown.bs.modal', function() {
            // onShown event
            dialog.options.onShown(dialog);
        }).on('hide.bs.modal', function(e) {
            // onHide event
            dialog.options.onHide(dialog);
        }).on('hidden.bs.modal', function(e) {
            // cancel dialog's auto size
            $(window).off('resize', setSize);
 
            // remove dialog's div
            $('#' + dialog.options.id).remove();
 
            // onHidden event
            dialog.options.onHidden(dialog);
        }).modal({
            'backdrop': dialog.options.closeByBackdrop,
            'keyboard': dialog.options.closeByKeyboard,
        });
 
        // return main object
        return this;
    }
 
    SimpleBsDialog.prototype.close = function()
    {
        $('#' + this.options.id).modal('hide');
 
        // return main object
        return this;
    }
 
    SimpleBsDialog.prototype.get = function(option)
    {
        if (validOptions().indexOf(option) > -1) {
            return this.options[option];
        }
    }
 
    SimpleBsDialog.prototype.set = function(options, value)
    {
        if (!$.isPlainObject(options) && validOptions().indexOf(options) > -1) {
            var option = options;
 
            options = {};
            options[option] = value;
        }
 
        if ($.isPlainObject(options)) {
            // store this
            var dialog = this;
 
            $.each(options, function(option, value) {
                switch (option) {
                case 'width': {
                    // new width
                    dialog.options.width = value;
 
                    // init new size
                    setWidth({
                        data: dialog,
                    }, true);
 
                    break;
                }
                case 'autoWidth': {
                    // new autoWidth
                    dialog.options.autoWidth = value;
 
                    // init new size
                    setWidth({
                        data: dialog,
                    }, true);
 
                    break;
                }
                case 'height': {
                    // new height
                    dialog.options.height = value;
 
                    // init new size
                    setHeight({
                        data: dialog,
                    }, true);
 
                    break;
                }
                case 'autoHeight': {
                    // new autoHeight
                    dialog.options.autoHeight = value;
 
                    // init new size
                    setHeight({
                        data: dialog,
                    }, true);
 
                    break;
                }
                case 'title': {
                    // update dialog's title
                    $('#' + dialog.options.id).find('.modal-title').html(dialog.options.title = value);
 
                    break;
                }
                case 'closable': {
                    // update dialog's closable
                    if (dialog.options.closable = value) {
                        $('#' + dialog.options.id).find('.modal-header button.close').removeClass('d-none');
                    } else {
                        $('#' + dialog.options.id).find('.modal-header button.close').addClass('d-none');
                    }
 
                    break;
                }
                case 'spinner': {
                    // update dialog's spinner
                    if (dialog.options.spinner = value) {
                        $('#' + dialog.options.id).find('.modal-spinner').removeClass('d-none');
                    } else {
                        $('#' + dialog.options.id).find('.modal-spinner').addClass('d-none');
                    }
 
                    break;
                }
                case 'spinnerIcon': {
                    // update dialog's spinnerIcon
                    $('#' + dialog.options.id).find('.modal-spinner').html(dialog.options.spinnerIcon = value);
 
                    break;
                }
                }
            });
        }
 
        // return main object
        return this;
    }
     
    SimpleBsDialog.prototype.getModalBody = function()
    {
        // get modal body
        return $('#' + this.options.id).find('.modal-body');
    }
 
    SimpleBsDialog.prototype.getButton = function(id)
    {
        // get button's object
        return $('#' + this.options.id).find('.modal-footer button#' + id);
    }
 
    SimpleBsDialog.prototype.getButtons = function()
    {
        // get all the buttons' object
        return $('#' + this.options.id).find('.modal-footer button');
    }
 
    // for lazy people
    SimpleBsDialog.show = function(options)
    {
        return (new SimpleBsDialog(options)).open();
    }
 
    // current version
    SimpleBsDialog.version = '1.0.1';
}(window, jQuery));