https://mayormeck.com/wp-content/themes/weblizar-premium/js/_jquery.placeholder.js

1/*! http://mths.be/placeholder v2.0.7 by @mathias */
2;(function(window, document, $) {
3
4    var isInputSupported = 'placeholder' in document.createElement('input'),
5        isTextareaSupported = 'placeholder' in document.createElement('textarea'),
6        prototype = $.fn,
7        valHooks = $.valHooks,
8        hooks,
9        placeholder;
10
11    if (isInputSupported && isTextareaSupported) {
12
13        placeholder = prototype.placeholder = function() {
14            return this;
15        };
16
17        placeholder.input = placeholder.textarea = true;
18
19    } else {
20
21        placeholder = prototype.placeholder = function() {
22            var $this = this;
23            $this
24                .filter((isInputSupported ? 'textarea' : ':input') + '[placeholder]')
25                .not('.placeholder')
26                .bind({
27                    'focus.placeholder': clearPlaceholder,
28                    'blur.placeholder': setPlaceholder
29                })
30                .data('placeholder-enabled', true)
31                .trigger('blur.placeholder');
32            return $this;
33        };
34
35        placeholder.input = isInputSupported;
36        placeholder.textarea = isTextareaSupported;
37
38        hooks = {
39            'get': function(element) {
40                var $element = $(element);
41                return $element.data('placeholder-enabled') && $element.hasClass('placeholder') ? '' : element.value;
42            },
43            'set': function(element, value) {
44                var $element = $(element);
45                if (!$element.data('placeholder-enabled')) {
46                    return element.value = value;
47                }
48                if (value == '') {
49                    element.value = value;
50                    // Issue #56: Setting the placeholder causes problems if the element continues to have focus.
51                    if (element != document.activeElement) {
52                        // We can't use `triggerHandler` here because of dummy text/password inputs :(
53                        setPlaceholder.call(element);
54                    }
55                } else if ($element.hasClass('placeholder')) {
56                    clearPlaceholder.call(element, true, value) || (element.value = value);
57                } else {
58                    element.value = value;
59                }
60                // `set` can not return `undefined`; see http://jsapi.info/jquery/1.7.1/val#L2363
61                return $element;
62            }
63        };
64
65        isInputSupported || (valHooks.input = hooks);
66        isTextareaSupported || (valHooks.textarea = hooks);
67
68        $(function() {
69            // Look for forms
70            $(document).delegate('form', 'submit.placeholder', function() {
71                // Clear the placeholder values so they don't get submitted
72                var $inputs = $('.placeholder', this).each(clearPlaceholder);
73                setTimeout(function() {
74                    $inputs.each(setPlaceholder);
75                }, 10);
76            });
77        });
78
79        // Clear placeholder values upon page reload
80        $(window).bind('beforeunload.placeholder', function() {
81            $('.placeholder').each(function() {
82                this.value = '';
83            });
84        });
85
86    }
87
88    function args(elem) {
89        // Return an object of element attributes
90        var newAttrs = {},
91            rinlinejQuery = /^jQuery\d+$/;
92        $.each(elem.attributes, function(i, attr) {
93            if (attr.specified && !rinlinejQuery.test(attr.name)) {
94                newAttrs[attr.name] = attr.value;
95            }
96        });
97        return newAttrs;
98    }
99
100    function clearPlaceholder(event, value) {
101        var input = this,
102            $input = $(input);
103        if (input.value == $input.attr('placeholder') && $input.hasClass('placeholder')) {
104            if ($input.data('placeholder-password')) {
105                $input = $input.hide().next().show().attr('id', $input.removeAttr('id').data('placeholder-id'));
106                // If `clearPlaceholder` was called from `$.valHooks.input.set`
107                if (event === true) {
108                    return $input[0].value = value;
109                }
110                $input.focus();
111            } else {
112                input.value = '';
113                $input.removeClass('placeholder');
114                input == document.activeElement && input.select();
115            }
116        }
117    }
118
119    function setPlaceholder() {
120        var $replacement,
121            input = this,
122            $input = $(input),
123            $origInput = $input,
124            id = this.id;
125        if (input.value == '') {
126            if (input.type == 'password') {
127                if (!$input.data('placeholder-textinput')) {
128                    try {
129                        $replacement = $input.clone().attr({ 'type': 'text' });
130                    } catch(e) {
131                        $replacement = $('<input>').attr($.extend(args(this), { 'type': 'text' }));
132                    }
133                    $replacement
134                        .removeAttr('name')
135                        .data({
136                            'placeholder-password': true,
137                            'placeholder-id': id
138                        })
139                        .bind('focus.placeholder', clearPlaceholder);
140                    $input
141                        .data({
142                            'placeholder-textinput': $replacement,
143                            'placeholder-id': id
144                        })
145                        .before($replacement);
146                }
147                $input = $input.removeAttr('id').hide().prev().attr('id', id).show();
148                // Note: `$input[0] != input` now!
149            }
150            $input.addClass('placeholder');
151            $input[0].value = $input.attr('placeholder');
152        } else {
153            $input.removeClass('placeholder');
154        }
155    }
156
157}(this, document, jQuery));