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pixelfed/public/js/emoji-picker/jquery.emojiarea.js

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JavaScript

/**
* emojiarea - A rich textarea control that supports emojis, WYSIWYG-style.
* Copyright (c) 2012 DIY Co
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
* file except in compliance with the License. You may obtain a copy of the License at:
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
* ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*
* @author Brian Reavis <brian@diy.org>
*/
/**
* This file also contains some modifications by Igor Zhukov in order to add
* custom scrollbars to EmojiMenu See keyword `MODIFICATION` in source code.
*/
(function($, window, document) {
var ELEMENT_NODE = 1;
var TEXT_NODE = 3;
var TAGS_BLOCK = [ 'p', 'div', 'pre', 'form' ];
var KEY_ESC = 27;
var KEY_TAB = 9;
/* Keys that are not intercepted and canceled when the textbox has reached its max length:
Backspace, Tab, Ctrl, Alt, Left Arrow, Up Arrow, Right Arrow, Down Arrow, Cmd Key, Delete
*/
var MAX_LENGTH_ALLOWED_KEYS = [8, 9, 17, 18, 37, 38, 39, 40, 91, 46];
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
/*
* ! MODIFICATION START Options 'spritesheetPath', 'spritesheetDimens',
* 'iconSize' added by Andre Staltz.
*/
$.emojiarea = {
assetsPath : '',
spriteSheetPath: '',
blankGifPath: '',
iconSize : 25,
icons : {},
};
var defaultRecentEmojis = ':joy:,:kissing_heart:,:heart:,:heart_eyes:,:blush:,:grin:,:+1:,:relaxed:,:pensive:,:smile:,:sob:,:kiss:,:unamused:,:flushed:,:stuck_out_tongue_winking_eye:,:see_no_evil:,:wink:,:smiley:,:cry:,:stuck_out_tongue_closed_eyes:,:scream:,:rage:,:smirk:,:disappointed:,:sweat_smile:,:kissing_closed_eyes:,:speak_no_evil:,:relieved:,:grinning:,:yum:,:laughing:,:ok_hand:,:neutral_face:,:confused:'
.split(',');
/* ! MODIFICATION END */
$.fn.emojiarea = function(options) {
options = $.extend({}, options);
return this
.each(function () {
var originalInput = $(this);
if ('contentEditable' in document.body
&& options.wysiwyg !== false) {
var id = getGuid();
new EmojiArea_WYSIWYG(originalInput, id, $.extend({}, options));
} else {
var id = getGuid();
new EmojiArea_Plain(originalInput, id, options);
}
originalInput.attr(
{
'data-emojiable': 'converted',
'data-id': id,
'data-type': 'original-input'
});
});
};
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
var util = {};
util.restoreSelection = (function() {
if (window.getSelection) {
return function(savedSelection) {
var sel = window.getSelection();
sel.removeAllRanges();
for (var i = 0, len = savedSelection.length; i < len; ++i) {
sel.addRange(savedSelection[i]);
}
};
} else if (document.selection && document.selection.createRange) {
return function(savedSelection) {
if (savedSelection) {
savedSelection.select();
}
};
}
})();
util.saveSelection = (function() {
if (window.getSelection) {
return function() {
var sel = window.getSelection(), ranges = [];
if (sel.rangeCount) {
for (var i = 0, len = sel.rangeCount; i < len; ++i) {
ranges.push(sel.getRangeAt(i));
}
}
return ranges;
};
} else if (document.selection && document.selection.createRange) {
return function() {
var sel = document.selection;
return (sel.type.toLowerCase() !== 'none') ? sel.createRange()
: null;
};
}
})();
util.replaceSelection = (function() {
if (window.getSelection) {
return function(content) {
var range, sel = window.getSelection();
var node = typeof content === 'string' ? document
.createTextNode(content) : content;
if (sel.getRangeAt && sel.rangeCount) {
range = sel.getRangeAt(0);
range.deleteContents();
//range.insertNode(document.createTextNode(''));
range.insertNode(node);
range.setStart(node, 0);
window.setTimeout(function() {
range = document.createRange();
range.setStartAfter(node);
range.collapse(true);
sel.removeAllRanges();
sel.addRange(range);
}, 0);
}
}
} else if (document.selection && document.selection.createRange) {
return function(content) {
var range = document.selection.createRange();
if (typeof content === 'string') {
range.text = content;
} else {
range.pasteHTML(content.outerHTML);
}
}
}
})();
util.insertAtCursor = function(text, el) {
text = ' ' + text;
var val = el.value, endIndex, startIndex, range;
if (typeof el.selectionStart != 'undefined'
&& typeof el.selectionEnd != 'undefined') {
startIndex = el.selectionStart;
endIndex = el.selectionEnd;
el.value = val.substring(0, startIndex) + text
+ val.substring(el.selectionEnd);
el.selectionStart = el.selectionEnd = startIndex + text.length;
} else if (typeof document.selection != 'undefined'
&& typeof document.selection.createRange != 'undefined') {
el.focus();
range = document.selection.createRange();
range.text = text;
range.select();
}
};
util.extend = function(a, b) {
if (typeof a === 'undefined' || !a) {
a = {};
}
if (typeof b === 'object') {
for ( var key in b) {
if (b.hasOwnProperty(key)) {
a[key] = b[key];
}
}
}
return a;
};
util.escapeRegex = function(str) {
return (str + '').replace(/([.?*+^$[\]\\(){}|-])/g, '\\$1');
};
util.htmlEntities = function(str) {
return String(str).replace(/&/g, '&amp;').replace(/</g, '&lt;')
.replace(/>/g, '&gt;').replace(/"/g, '&quot;');
};
/*
* ! MODIFICATION START This function was added by Igor Zhukov to save
* recent used emojis.
*/
util.emojiInserted = function(emojiKey, menu) {
ConfigStorage.get('emojis_recent', function(curEmojis) {
curEmojis = curEmojis || defaultRecentEmojis || [];
var pos = curEmojis.indexOf(emojiKey);
if (!pos) {
return false;
}
if (pos != -1) {
curEmojis.splice(pos, 1);
}
curEmojis.unshift(emojiKey);
if (curEmojis.length > 42) {
curEmojis = curEmojis.slice(42);
}
ConfigStorage.set({
emojis_recent : curEmojis
});
})
};
/* ! MODIFICATION END */
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
var EmojiArea = function() {
};
EmojiArea.prototype.setup = function() {
var self = this;
this.$editor.on('focus', function() {
self.hasFocus = true;
});
this.$editor.on('blur', function() {
self.hasFocus = false;
});
// Assign a unique instance of an emojiMenu to
self.emojiMenu = new EmojiMenu(self);
this.setupButton();
};
EmojiArea.prototype.setupButton = function() {
var self = this;
var $button = $('[data-id=' + this.id + '][data-type=picker]');
$button.on('click', function(e) {
self.emojiMenu.show(self);
});
this.$button = $button;
this.$dontHideOnClick = 'emoji-picker';
};
/*
* ! MODIFICATION START This function was modified by Andre Staltz so that
* the icon is created from a spritesheet.
*/
EmojiArea.createIcon = function(emoji, menu) {
var category = emoji[0];
var row = emoji[1];
var column = emoji[2];
var name = emoji[3];
var filename = $.emojiarea.spriteSheetPath ? $.emojiarea.spriteSheetPath : $.emojiarea.assetsPath + '/emoji_spritesheet_!.png';
var blankGifPath = $.emojiarea.blankGifPath ? $.emojiarea.blankGifPath : $.emojiarea.assetsPath + '/blank.gif';
var iconSize = menu && Config.Mobile ? 26 : $.emojiarea.iconSize
var xoffset = -(iconSize * column);
var yoffset = -(iconSize * row);
var scaledWidth = (Config.EmojiCategorySpritesheetDimens[category][1] * iconSize);
var scaledHeight = (Config.EmojiCategorySpritesheetDimens[category][0] * iconSize);
var style = 'display:inline-block;';
style += 'width:' + iconSize + 'px;';
style += 'height:' + iconSize + 'px;';
style += 'background:url(\'' + filename.replace('!', category) + '\') '
+ xoffset + 'px ' + yoffset + 'px no-repeat;';
style += 'background-size:' + scaledWidth + 'px ' + scaledHeight
+ 'px;';
return '<img src="' + blankGifPath + '" class="img" style="'
+ style + '" alt="' + util.htmlEntities(name) + '">';
};
$.emojiarea.createIcon = EmojiArea.createIcon;
/* ! MODIFICATION END */
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
/**
* Editor (plain-text)
*
* @constructor
* @param {object}
* $textarea
* @param {object}
* options
*/
var EmojiArea_Plain = function($textarea, id, options) {
this.options = options;
this.$textarea = $textarea;
this.$editor = $textarea;
this.id = id;
this.setup();
};
EmojiArea_Plain.prototype.insert = function(emoji) {
if (!$.emojiarea.icons.hasOwnProperty(emoji))
return;
util.insertAtCursor(emoji, this.$textarea[0]);
/*
* MODIFICATION: Following line was added by Igor Zhukov, in order to
* save recent emojis
*/
util.emojiInserted(emoji, this.menu);
this.$textarea.trigger('change');
};
EmojiArea_Plain.prototype.val = function() {
if (this.$textarea == '\n')
return '';
return this.$textarea.val();
};
util.extend(EmojiArea_Plain.prototype, EmojiArea.prototype);
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
/**
* Editor (rich)
*
* @constructor
* @param {object}
* $textarea
* @param {object}
* options
*/
var EmojiArea_WYSIWYG = function($textarea, id, options) {
var self = this;
this.options = options || {};
if ($($textarea).attr('data-emoji-input') === 'unicode')
this.options.inputMethod = 'unicode';
else
this.options.inputMethod = 'image';
this.id = id;
this.$textarea = $textarea;
this.emojiPopup = options.emojiPopup;
this.$editor = $('<div>').addClass('emoji-wysiwyg-editor').addClass($($textarea)[0].className);
this.$editor.data('self', this);
if ($textarea.attr('maxlength')) {
this.$editor.attr('maxlength', $textarea.attr('maxlength'));
}
this.$editor.height($textarea.outerHeight()); //auto adjust height
this.emojiPopup.appendUnicodeAsImageToElement(this.$editor, $textarea.val());
this.$editor.attr({
'data-id': id,
'data-type': 'input',
'placeholder': $textarea.attr('placeholder'),
'contenteditable': 'true',
});
/*
* ! MODIFICATION START Following code was modified by Igor Zhukov, in
* order to improve rich text paste
*/
var changeEvents = 'blur change';
if (!this.options.norealTime) {
changeEvents += ' keyup';
}
this.$editor.on(changeEvents, function(e) {
return self.onChange.apply(self, [ e ]);
});
/* ! MODIFICATION END */
this.$editor.on('mousedown focus', function() {
document.execCommand('enableObjectResizing', false, false);
});
this.$editor.on('blur', function() {
document.execCommand('enableObjectResizing', true, true);
});
var editorDiv = this.$editor;
this.$editor.on("change keydown keyup resize scroll", function(e) {
if(MAX_LENGTH_ALLOWED_KEYS.indexOf(e.which) == -1 &&
!((e.ctrlKey || e.metaKey) && e.which == 65) && // Ctrl + A
!((e.ctrlKey || e.metaKey) && e.which == 67) && // Ctrl + C
editorDiv.text().length + editorDiv.find('img').length >= editorDiv.attr('maxlength'))
{
e.preventDefault();
}
self.updateBodyPadding(editorDiv);
});
this.$editor.on("paste", function (e) {
e.preventDefault();
var content;
var charsRemaining = editorDiv.attr('maxlength') - (editorDiv.text().length + editorDiv.find('img').length);
if ((e.originalEvent || e).clipboardData) {
content = (e.originalEvent || e).clipboardData.getData('text/plain');
if (self.options.onPaste) {
content = self.options.onPaste(content);
}
if (charsRemaining < content.length) {
content = content.substring(0, charsRemaining);
}
document.execCommand('insertText', false, content);
}
else if (window.clipboardData) {
content = window.clipboardData.getData('Text');
if (self.options.onPaste) {
content = self.options.onPaste(content);
}
if (charsRemaining < content.length) {
content = content.substring(0, charsRemaining);
}
document.selection.createRange().pasteHTML(content);
}
editorDiv.scrollTop(editorDiv[0].scrollHeight);
});
$textarea.after("<i class='emoji-picker-icon emoji-picker " + this.options.popupButtonClasses + "' data-id='" + id + "' data-type='picker'></i>");
$textarea.hide().after(this.$editor);
this.setup();
/*
* MODIFICATION: Following line was modified by Igor Zhukov, in order to
* improve emoji insert behaviour
*/
$(document.body).on('mousedown', function() {
if (self.hasFocus) {
self.selection = util.saveSelection();
}
});
};
EmojiArea_WYSIWYG.prototype.updateBodyPadding = function(target) {
var emojiPicker = $('[data-id=' + this.id + '][data-type=picker]');
if ($(target).hasScrollbar()) {
if (!(emojiPicker.hasClass('parent-has-scroll')))
emojiPicker.addClass('parent-has-scroll');
if (!($(target).hasClass('parent-has-scroll')))
$(target).addClass('parent-has-scroll');
} else {
if ((emojiPicker.hasClass('parent-has-scroll')))
emojiPicker.removeClass('parent-has-scroll');
if (($(target).hasClass('parent-has-scroll')))
$(target).removeClass('parent-has-scroll');
}
};
EmojiArea_WYSIWYG.prototype.onChange = function(e) {
var event = new CustomEvent('input', { bubbles: true });
this.$textarea.val(this.val())[0].dispatchEvent(event);
};
EmojiArea_WYSIWYG.prototype.insert = function(emoji) {
var content;
/*
* MODIFICATION: Following line was modified by Andre Staltz, to use new
* implementation of createIcon function.
*/
var insertionContent = '';
if (this.options.inputMethod == 'unicode') {
insertionContent = this.emojiPopup.colonToUnicode(emoji);
} else {
var $img = $(EmojiArea.createIcon($.emojiarea.icons[emoji]));
if ($img[0].attachEvent) {
$img[0].attachEvent('onresizestart', function(e) {
e.returnValue = false;
}, false);
}
insertionContent = $img[0];
}
this.$editor.trigger('focus');
if (this.selection) {
util.restoreSelection(this.selection);
}
try {
util.replaceSelection(insertionContent);
} catch (e) {
}
/*
* MODIFICATION: Following line was added by Igor Zhukov, in order to
* save recent emojis
*/
util.emojiInserted(emoji, this.menu);
this.onChange();
};
EmojiArea_WYSIWYG.prototype.val = function() {
var lines = [];
var line = [];
var emojiPopup = this.emojiPopup;
var flush = function() {
lines.push(line.join(''));
line = [];
};
var sanitizeNode = function(node) {
if (node.nodeType === TEXT_NODE) {
line.push(node.nodeValue);
} else if (node.nodeType === ELEMENT_NODE) {
var tagName = node.tagName.toLowerCase();
var isBlock = TAGS_BLOCK.indexOf(tagName) !== -1;
if (isBlock && line.length)
flush();
if (tagName === 'img') {
var alt = node.getAttribute('alt') || '';
if (alt) {
line.push(alt);
}
return;
} else if (tagName === 'br') {
flush();
}
var children = node.childNodes;
for (var i = 0; i < children.length; i++) {
sanitizeNode(children[i]);
}
if (isBlock && line.length)
flush();
}
};
var children = this.$editor[0].childNodes;
for (var i = 0; i < children.length; i++) {
sanitizeNode(children[i]);
}
if (line.length)
flush();
var returnValue = lines.join('\n');
return emojiPopup.colonToUnicode(returnValue);
};
util.extend(EmojiArea_WYSIWYG.prototype, EmojiArea.prototype);
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
jQuery.fn.hasScrollbar = function() {
var scrollHeight = this.get(0).scrollHeight;
//safari's scrollHeight includes padding
//if ($.browser.safari)
// scrollHeight -= parseInt(this.css('padding-top')) + parseInt(this.css('padding-bottom'));
if (this.outerHeight() < scrollHeight)
return true;
else
return false;
}
/**
* Emoji Dropdown Menu
*
* @constructor
* @param {object}
* emojiarea
*/
var EmojiMenu = function(emojiarea) {
var self = this;
self.id = emojiarea.id;
var $body = $(document.body);
var $window = $(window);
this.visible = false;
this.emojiarea = emojiarea;
EmojiMenu.menuZIndex = 5000;
this.$menu = $('<div>');
this.$menu.addClass('emoji-menu');
this.$menu.attr('data-id', self.id);
this.$menu.attr('data-type', 'menu');
this.$menu.hide();
this.$itemsTailWrap = $('<div class="emoji-items-wrap1"></div>')
.appendTo(this.$menu);
this.$categoryTabs = $(
'<table class="emoji-menu-tabs"><tr>'
+ '<td><a class="emoji-menu-tab icon-recent" ></a></td>'
+ '<td><a class="emoji-menu-tab icon-smile" ></a></td>'
+ '<td><a class="emoji-menu-tab icon-flower"></a></td>'
+ '<td><a class="emoji-menu-tab icon-bell"></a></td>'
+ '<td><a class="emoji-menu-tab icon-car"></a></td>'
+ '<td><a class="emoji-menu-tab icon-grid"></a></td>'
+ '</tr></table>').appendTo(this.$itemsTailWrap);
this.$itemsWrap = $(
'<div class="emoji-items-wrap mobile_scrollable_wrap"></div>')
.appendTo(this.$itemsTailWrap);
this.$items = $('<div class="emoji-items">').appendTo(
this.$itemsWrap);
this.emojiarea.$editor.after(this.$menu)
$body.on('keydown', function(e) {
if (e.keyCode === KEY_ESC || e.keyCode === KEY_TAB) {
self.hide();
}
});
/*
* ! MODIFICATION: Following 3 lines were added by Igor Zhukov, in order
* to hide menu on message submit with keyboard
*/
$body.on('message_send', function(e) {
self.hide();
});
$body.on('mouseup', function(e) {
e = e.originalEvent || e;
var target = e.target || window;
if ($(target).hasClass(self.emojiarea.$dontHideOnClick)) {
return;
}
while (target && target != window) {
target = target.parentNode;
if (target == self.$menu[0] || self.emojiarea
&& target == self.emojiarea.$button[0]) {
return;
}
}
self.hide();
});
this.$menu.on('mouseup', 'a', function(e) {
e.stopPropagation();
return false;
});
this.$menu.on('click', 'a', function(e) {
self.emojiarea.updateBodyPadding(self.emojiarea.$editor);
if ($(this).hasClass('emoji-menu-tab')) {
if (self.getTabIndex(this) !== self.currentCategory) {
self.selectCategory(self.getTabIndex(this));
}
return false;
}
var emoji = $('.label', $(this)).text();
window.setTimeout(function() {
self.onItemSelected(emoji);
if (e.ctrlKey || e.metaKey) {
self.hide();
}
}, 0);
e.stopPropagation();
return false;
});
this.selectCategory(0);
};
/*
* ! MODIFICATION START Following code was added by Andre Staltz, to
* implement category selection.
*/
EmojiMenu.prototype.getTabIndex = function(tab) {
return this.$categoryTabs.find('.emoji-menu-tab').index(tab);
};
EmojiMenu.prototype.selectCategory = function(category) {
var self = this;
this.$categoryTabs.find('.emoji-menu-tab').each(function(index) {
if (index === category) {
this.className += '-selected';
} else {
this.className = this.className.replace('-selected', '');
}
});
this.currentCategory = category;
this.load(category);
};
/* ! MODIFICATION END */
EmojiMenu.prototype.onItemSelected = function(emoji) {
if(this.emojiarea.$editor.text().length + this.emojiarea.$editor.find('img').length >= this.emojiarea.$editor.attr('maxlength'))
{
return;
}
this.emojiarea.insert(emoji);
};
/*
* MODIFICATION: The following function argument was modified by Andre
* Staltz, in order to load only icons from a category. Also function was
* modified by Igor Zhukov in order to display recent emojis from
* localStorage
*/
EmojiMenu.prototype.load = function(category) {
var html = [];
var options = $.emojiarea.icons;
var path = $.emojiarea.assetsPath;
var self = this;
if (path.length && path.charAt(path.length - 1) !== '/') {
path += '/';
}
/*
* ! MODIFICATION: Following function was added by Igor Zhukov, in order
* to add scrollbars to EmojiMenu
*/
var updateItems = function() {
self.$items.html(html.join(''));
}
if (category > 0) {
for ( var key in options) {
/*
* MODIFICATION: The following 2 lines were modified by Andre
* Staltz, in order to load only icons from the specified
* category.
*/
if (options.hasOwnProperty(key)
&& options[key][0] === (category - 1)) {
html.push('<a href="javascript:void(0)" title="'
+ util.htmlEntities(key) + '">'
+ EmojiArea.createIcon(options[key], true)
+ '<span class="label">' + util.htmlEntities(key)
+ '</span></a>');
}
}
updateItems();
} else {
ConfigStorage.get('emojis_recent', function(curEmojis) {
curEmojis = curEmojis || defaultRecentEmojis || [];
var key, i;
for (i = 0; i < curEmojis.length; i++) {
key = curEmojis[i]
if (options[key]) {
html.push('<a href="javascript:void(0)" title="'
+ util.htmlEntities(key) + '">'
+ EmojiArea.createIcon(options[key], true)
+ '<span class="label">'
+ util.htmlEntities(key) + '</span></a>');
}
}
updateItems();
});
}
};
EmojiMenu.prototype.hide = function(callback) {
this.visible = false;
this.$menu.hide("fast");
};
EmojiMenu.prototype.show = function(emojiarea) {
/*
* MODIFICATION: Following line was modified by Igor Zhukov, in order to
* improve EmojiMenu behaviour
*/
if (this.visible)
return this.hide();
$(this.$menu).css('z-index', ++EmojiMenu.menuZIndex);
this.$menu.show("fast");
/*
* MODIFICATION: Following 3 lines were added by Igor Zhukov, in order
* to update EmojiMenu contents
*/
if (!this.currentCategory) {
this.load(0);
}
this.visible = true;
};
})(jQuery, window, document);