Files
@ 2ba369aa5c5a
Branch filter:
Location: website/www/conservancy/static/js/supporter-page.js
2ba369aa5c5a
6.8 KiB
application/javascript
Supporter: js: fade out “Expand All” anchor when all sections expand
The expandable sections can be expanded either one-by-one, or with
the “Expand All” button. Add a counter for each expandable
section (which requires their div's to have 'id' attributes, lest
they be counted in the '__global' section of expandables).
The __global counter will work as advertised if you have no 'id'
attributes on any of your 'expandable-section'-classed div's, but if
you mix a __global without an id with ones that *do* have an id, it's
likely this particular code won't work for that.
Finally, add some documentation which is probably over-documenting
for someone who knows Javascript and jQuery well, but it took me a
while to figure out this code so I felt throwing some notes in there
might be helpful.
The expandable sections can be expanded either one-by-one, or with
the “Expand All” button. Add a counter for each expandable
section (which requires their div's to have 'id' attributes, lest
they be counted in the '__global' section of expandables).
The __global counter will work as advertised if you have no 'id'
attributes on any of your 'expandable-section'-classed div's, but if
you mix a __global without an id with ones that *do* have an id, it's
likely this particular code won't work for that.
Finally, add some documentation which is probably over-documenting
for someone who knows Javascript and jQuery well, but it took me a
while to figure out this code so I felt throwing some notes in there
might be helpful.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 | /* Copyright (C) 2012-2013 Denver Gingerich,
** Copyright (C) 2013-2014, 2020 Bradley M. Kuhn,
** Copyright (C) 2016, 2020 Brett Smith.
** License: GPLv3-or-later
** Find a copy of GPL at https://sfconservancy.org/GPLv3
*/
var NEW_AMOUNT_EVENT = 'conservancy:newamount';
var flipClass = function(elem, byeClass, hiClass) {
var classList = elem.classList;
classList.remove(byeClass);
classList.add(hiClass);
}
var buildAmountData = function(amountInput) {
var amountData = {
minAmount: parseFloat(amountInput.min),
newAmount: parseFloat(amountInput.value),
}
if (amountInput.dataset.oldAmount !== undefined) {
amountData.oldAmount = parseFloat(amountInput.dataset.oldAmount);
}
return amountData;
}
var supportTypeSelector = function(supportTypeHash) {
return $(supportTypeHash + "Selector");
};
var $window = $(window);
$window.load(function() {
/* We've sometimes published links that say #renew instead of #renewal.
Rewrite that to work as intended. */
if (window.location.hash === "#renew") {
window.location.hash = "#renewal";
}
var $selectorLink = supportTypeSelector(window.location.hash);
if ($selectorLink.length > 0) {
$window.scrollTop($selectorLink.offset().top);
}
});
$(document).ready(function() {
// Forms start in "invalid" form, with the errors shown, so that
// non-Javascript users see the errors by default and know what they must
// enter. Now we hide those for JavaScript users:
var $formCorrectionNeeded = $('#form-correction-needed');
$formCorrectionNeeded.addClass('hidden');
$('form.supporter-form').each(function(index, form) {
var $amountInput = $('input[type=number]', form).first();
var $amountError = $('.form-error', $amountInput.parents('.supporter-form-input'));
$amountError.on(NEW_AMOUNT_EVENT, function(event, amountData) {
var isValid = amountData.newAmount >= amountData.minAmount;
if (amountData.oldAmount === undefined) {
if (isValid) {
$amountError.addClass('hidden');
} else {
flipClass($amountInput[0], 'valid', 'invalid');
$amountError.removeClass('hidden');
}
} else if (isValid) {
flipClass($amountInput[0], 'invalid', 'valid');
$amountError.fadeOut();
} else if (amountData.oldAmount >= amountData.minAmount) {
flipClass($amountInput[0], 'valid', 'invalid');
$amountError.fadeIn();
}
});
$amountInput.on('input', function(event) {
event.target.classList.remove('invalid');
}).on('focusout', function(event) {
var amountInput = event.target;
var amountData = buildAmountData(amountInput);
$amountError.trigger(NEW_AMOUNT_EVENT, amountData);
amountInput.dataset.oldAmount = amountData.newAmount;
}).trigger('focusout');
$(form).on('submit', function(event) {
var amountData = buildAmountData($amountInput[0]);
if (amountData.newAmount >= amountData.minAmount) {
$formCorrectionNeeded.addClass('hidden');
} else {
$formCorrectionNeeded.removeClass('hidden')
.css("font-weight", "bold").css("font-size", "150%");
event.preventDefault();
}
});
});
var selectSupportType = function(event) {
var $selectedLink = $(event.target);
$(".supporter-type-selector a").removeClass("supporter-type-selector-selected");
$selectedLink.addClass("supporter-type-selector-selected");
$(".supporter-type-selection").hide();
$(event.target.hash).show();
$formCorrectionNeeded.addClass('hidden');
return false;
};
$(".supporter-type-selector a").bind("click", selectSupportType);
var selectSupportTypeFromHash = function() {
return supportTypeSelector(window.location.hash).click();
};
$window.bind("hashchange", selectSupportTypeFromHash);
if (selectSupportTypeFromHash().length === 0) {
supportTypeSelector("#annual").click();
}
var want_id = window.location.hash.substr(1) || "do not match any id";
var $expandable_counts = [];
// First, build a count of expandable div sections
$('div.expandable-section').each(function(index, section) {
var $ourid = $(section).attr('id');
if ($ourid == undefined) { $ourid = "__global"; }
$expandable_counts[$ourid] = 0;
});
$('div[data-read-more]').each(function(index, readmore) {
var $readmore = $(readmore)
var $header = $readmore.prev('h3');
if ($header.length && $header[0].id === want_id) {
// Do nothing, leave it alone
} else {
var $ourid = $readmore.closest(".expandable-section" ).attr('id');
if ($ourid == undefined) { $ourid = "__global"; }
// Set up the link for this specific section using the text from
// the data-read-more atrribute on the div specific to this section
var $linkpara = $('<p><a class="read-more"></a></p>');
var $readlink = $linkpara.children('a');
$readlink.append($readmore.data('read-more'));
$readlink.on('click', function(event) {
// When clicked, we'll restore the actual text and fade it in
// quickly, and also see if there are any remaining
// expandable sections left in this particular expandable
// section. If none are left, make the "Expand all" button
// (which lives in an 'a' anchor of the class 'expander') disappear.
$linkpara.replaceWith($readmore);
$readmore.fadeIn('fast');
$expandable_counts[$ourid]--;
if ($expandable_counts[$ourid] <= 0) {
$readmore.closest(".expandable-section" )
.children('a.expander').each(function(index, element){
$(element).fadeOut('slow');
})
}
});
$readmore.hide().replaceWith($linkpara);
$expandable_counts[$ourid]++;
}
});
// Final two each's enable the "Expand All" link.
$('a[data-expand-link-text]').each(function(index, element) {
var $element = $(element);
$element.append($element.data('expand-link-text'));
});
$('.expandable-section').each(function(index) {
var $expandlink = $(this).children('a.expander');
var $ourexpandablesection = $(this);
$expandlink.on('click', function(event) {
$expandlink.fadeOut('slow');
$ourexpandablesection.find('.read-more').each(function(index) { $(this).click(); }); });
});
});
|