877 lines
25 KiB
JavaScript
877 lines
25 KiB
JavaScript
/**
|
||
* Copyright (c) 2014 Leonardo Cardoso (http://leocardz.com)
|
||
* Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
|
||
* and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
|
||
*
|
||
* Restructured by Rabzuarus (https://friendica.kommune4.de/profile/rabuzarus)
|
||
* to use it in the decentralized social network Friendica (https://friendi.ca).
|
||
*
|
||
* Version: 1.4.0
|
||
*/
|
||
(function ($) {
|
||
$.fn.linkPreview = function (options) {
|
||
var opts = jQuery.extend({}, $.fn.linkPreview.defaults, options);
|
||
|
||
var selector = $(this).selector;
|
||
selector = selector.substr(1);
|
||
|
||
var previewTpl = '\
|
||
<div id="preview_' + selector + '" class="preview {0}">\
|
||
{1}\
|
||
<input type="hidden" name="has_attachment" id="hasAttachment_' + selector + '" value="{2}" />\
|
||
<input type="hidden" name="attachment_url" id="attachmentUrl_' + selector + '" value="{3}" />\
|
||
<input type="hidden" name="attachment_type" id="attachmentType_' + selector + '" value="{4}" />\
|
||
</div>';
|
||
|
||
var attachmentTpl = '\
|
||
<hr class="previewseparator">\
|
||
<div id="closePreview_' + selector + '" title="Remove" class="closePreview" >\
|
||
<button type="button" class="previewActionBtn">×</button>\
|
||
</div>\
|
||
<div id="previewImages_' + selector + '" class="previewImages">\
|
||
<div id="previewImgBtn_' + selector + '" class="previewImgBtn">\
|
||
<button type="button" id="previewChangeImg_' + selector + '" class="buttonChangeDeactive previewActionBtn" style="display: none">\
|
||
<i class="fa fa-exchange" aria-hidden="true"></i>\
|
||
</button>\
|
||
</div>\
|
||
<div id="previewImage_' + selector + '" class="previewImage">\
|
||
</div>\
|
||
<input type="hidden" id="photoNumber_' + selector + '" class="photoNumber" value="0" />\
|
||
<input type="hidden" name="attachment_img_src" id="attachmentImageSrc_' + selector + '" value="" />\
|
||
<input type="hidden" name="attachment_img_width" id="attachmentImageWidth_' + selector + '" value="0" />\
|
||
<input type="hidden" name="attachment_img_height" id="attachmentImageHeight_' + selector + '" value="0" />\
|
||
</div>\
|
||
<div id="previewContent_' + selector + '" class="previewContent">\
|
||
<h4 id="previewTitle_' + selector + '" class="previewTitle"></h4>\
|
||
<blockquote id="previewDescription_' + selector + '" class="previewDescription"></blockquote>\
|
||
<div id="hiddenDescription_' + selector + '" class="hiddenDescription"></div>\
|
||
<sup id="previewUrl_' + selector + '" class="previewUrl"></sup>\
|
||
</div>\
|
||
<div class="clear"></div>\
|
||
<hr class="previewseparator">';
|
||
var text;
|
||
var urlRegex = /(https?\:\/\/|\s)[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})(\/+[a-z0-9_.\:\;-]*)*(\?[\&\%\|\+a-z0-9_=,\.\:\;-]*)?([\&\%\|\+&a-z0-9_=,\:\;\.-]*)([\!\#\/\&\%\|\+a-z0-9_=,\:\;\.-]*)}*/i;
|
||
var binurl;
|
||
var block = false;
|
||
var blockTitle = false;
|
||
var blockDescription = false;
|
||
var cache = {};
|
||
var images = "";
|
||
var isExtern = false;
|
||
var photoNumber = 0;
|
||
var firstPosted = false;
|
||
var isActive = false;
|
||
var isCrawling = false;
|
||
var defaultTitle = opts.defaultTitle;
|
||
var defaultDescription = opts.defaultDescription;
|
||
|
||
/**
|
||
* Initialize the plugin
|
||
*
|
||
* @returns {void}
|
||
*/
|
||
var init = function() {
|
||
$('#' + selector).bind({
|
||
paste: function () {
|
||
setTimeout(function () {
|
||
crawlText();
|
||
}, 100);
|
||
},
|
||
keyup: function (e) {
|
||
// on enter, space, ctrl
|
||
if ((e.which === 13 || e.which === 32 || e.which === 17)) {
|
||
crawlText();
|
||
}
|
||
}
|
||
});
|
||
|
||
// Check if we have already attachment bbcode in the textarea
|
||
// and add it to the attachment preview.
|
||
var content = $('#' + selector).val();
|
||
addBBCodeToPreview(content);
|
||
};
|
||
|
||
/**
|
||
* Reset some values.
|
||
*
|
||
* @returns {void}
|
||
*/
|
||
var resetPreview = function() {
|
||
$('#hasAttachment_' + selector).val(0);
|
||
photoNumber = 0;
|
||
images = "";
|
||
};
|
||
|
||
/**
|
||
* Crawl a text string if it contains an url and try
|
||
* to attach it.
|
||
*
|
||
* If no text is passed to crawlText() we take
|
||
* the previous word before the cursor of the textarea.
|
||
*
|
||
* @param {string} text (optional)
|
||
* @returns {void}
|
||
*/
|
||
var crawlText = function (text) {
|
||
block = false;
|
||
images = '';
|
||
isExtern = false;
|
||
|
||
// If no text is passed to crawlText() we
|
||
// take the previous word before the cursor.
|
||
if (typeof text === 'undefined') {
|
||
text = getPrevWord(selector);
|
||
} else {
|
||
isExtern = true;
|
||
}
|
||
|
||
// Don't procces the textarea input if we have already
|
||
// an attachment preview.
|
||
if (!isExtern && isActive) {
|
||
return;
|
||
}
|
||
|
||
if (trim(text) !== "") {
|
||
if (block === false && urlRegex.test(text)) {
|
||
binurl = bin2hex(text);
|
||
block = true;
|
||
|
||
isCrawling = true;
|
||
$('#profile-rotator').show();
|
||
|
||
if (binurl in cache) {
|
||
isCrawling = false;
|
||
processContentData(cache[binurl]);
|
||
} else {
|
||
getContentData(binurl, processContentData);
|
||
}
|
||
}
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Process the attachment data according to
|
||
* its content type (image, audio, video, attachment)
|
||
*
|
||
* @param {object} result
|
||
* @returns {void}
|
||
*/
|
||
var processContentData = function(result) {
|
||
if (result.contentType === 'image') {
|
||
insertImage(result.data);
|
||
}
|
||
if (result.contentType === 'audio') {
|
||
insertAudio(result.data);
|
||
}
|
||
if (result.contentType === 'video') {
|
||
insertVideo(result.data);
|
||
}
|
||
if (result.contentType === 'attachment') {
|
||
insertAttachment(result.data);
|
||
}
|
||
$('#profile-rotator').hide();
|
||
};
|
||
|
||
/**
|
||
* Fetch the content of link which should be attached.
|
||
*
|
||
* @param {string} binurl Link which should be attached as hexadecimal string.
|
||
* @param {type} callback
|
||
* @returns {void}
|
||
*/
|
||
var getContentData = function(binurl, callback) {
|
||
$.get('parse_url?binurl='+ binurl + '&format=json', function (answer) {
|
||
obj = sanitizeInputData(answer);
|
||
|
||
// Put the data into a cache
|
||
cache[binurl] = obj;
|
||
|
||
callback(obj);
|
||
|
||
isCrawling = false;
|
||
});
|
||
};
|
||
|
||
/*
|
||
* Add a [img] bbtag with the image url to the jot editor.
|
||
*
|
||
* @param {type} data
|
||
* @returns {void}
|
||
*/
|
||
var insertImage = function(data) {
|
||
if (!isExtern) {
|
||
return;
|
||
}
|
||
var bbcode = '\n[img]' + data.url + '[/img]\n';
|
||
addeditortext(bbcode);
|
||
};
|
||
|
||
/*
|
||
* Add a [audio] bbtag with the audio url to the jot editor.
|
||
*
|
||
* @param {type} data
|
||
* @returns {void}
|
||
*/
|
||
var insertAudio = function(data) {
|
||
if (!isExtern) {
|
||
return;
|
||
}
|
||
var bbcode = '\n[audio]' + data.url + '[/audio]\n';
|
||
addeditortext(bbcode);
|
||
};
|
||
|
||
/*
|
||
* Add a [video] bbtag with the video url to the jot editor.
|
||
*
|
||
* @param {type} data
|
||
* @returns {void}
|
||
*/
|
||
var insertVideo = function(data) {
|
||
if (!isExtern) {
|
||
return;
|
||
}
|
||
var bbcode = '\n[video]' + json.url + '[/video]\n';
|
||
addeditortext(bbcode);
|
||
};
|
||
|
||
/**
|
||
* Proccess all attachment data and show up a html
|
||
* attachment preview.
|
||
*
|
||
* @param {obj} data Attachment data.
|
||
* @returns {void}
|
||
*/
|
||
var insertAttachment = function(data) {
|
||
// If we have already a preview, leaver here.
|
||
// Note: if we finish the Preview of other media content type,
|
||
// we can move this condition to the beggining of crawlText();
|
||
if (isActive) {
|
||
$('#profile-rotator').hide();
|
||
return;
|
||
}
|
||
|
||
if (data.type !== 'link' && data.type !== 'video' && data.type !== 'photo' || data.url === data.title) {
|
||
$('#profile-rotator').hide();
|
||
return;
|
||
}
|
||
|
||
$('#photoNumber_' + selector).val(0);
|
||
resetPreview();
|
||
|
||
processAttachmentTpl(data, 'type-' + data.type);
|
||
addTitleDescription(data);
|
||
addHostToAttachment(data.url);
|
||
addImagesToAttachment(data.images);
|
||
|
||
processEventListener();
|
||
$('#profile-rotator').hide();
|
||
};
|
||
|
||
/**
|
||
* Construct the attachment html from the attachment template and
|
||
* add it to the DOM.
|
||
*
|
||
* @param {object} data Attachment data.
|
||
* @returns {void}
|
||
*/
|
||
var processAttachmentTpl = function(data) {
|
||
// Load and add the template if it isn't allready loaded.
|
||
if ($('#preview_' + selector).length === 0) {
|
||
var tpl = previewTpl.format(
|
||
'type-' + data.type,
|
||
attachmentTpl,
|
||
1,
|
||
bin2hex(data.url),
|
||
data.type
|
||
);
|
||
$('#' + selector).after(tpl);
|
||
}
|
||
|
||
isActive = true;
|
||
};
|
||
|
||
/**
|
||
* Add the attachment title and the description
|
||
* to the attachment preview.
|
||
*
|
||
* @param {object} data Attachment data.
|
||
* @returns {void}
|
||
*/
|
||
var addTitleDescription = function(data) {
|
||
var description = data.text;
|
||
|
||
if (description === '') {
|
||
description = defaultDescription;
|
||
}
|
||
|
||
$('#previewTitle_' + selector).html("\
|
||
<span id='previewSpanTitle_" + selector + "' class='previewSpanTitle' >" + escapeHTML(data.title) + "</span>\
|
||
<input type='text' name='attachment_title' value='" + escapeHTML(data.title) + "' id='previewInputTitle_" + selector + "' class='previewInputTitle inputPreview' style='display: none;'/>"
|
||
);
|
||
|
||
$('#previewDescription_' + selector).html("\
|
||
<span id='previewSpanDescription_" + selector + "' class='previewSpanDescription' >" + escapeHTML(description) + "</span>\n\
|
||
<textarea id='previewInputDescription_" + selector + "' name='attachment_text' class='previewInputDescription' style='display: none;' class='inputPreview' >" + escapeHTML(data.text) + "</textarea>"
|
||
);
|
||
};
|
||
|
||
/**
|
||
* Add the host to the attachment preview.
|
||
*
|
||
* @param {string} url The url of the link attachment.
|
||
* @returns {void}
|
||
*/
|
||
var addHostToAttachment = function(url) {
|
||
if (url) {
|
||
var regexpr = "(https?://)([^:^/]*)(:\\d*)?(.*)?";
|
||
var regResult = url.match(regexpr);
|
||
var urlHost = regResult[1] + regResult[2];
|
||
$('#previewUrl_' + selector).html("<a href='" + url + "'>" + urlHost + "</a>");
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Add preview images to the attachment.
|
||
*
|
||
* @param {array} images
|
||
*
|
||
* @returns {void}
|
||
*/
|
||
var addImagesToAttachment = function(images) {
|
||
var imageClass = 'attachment-preview';
|
||
|
||
if (Array.isArray(images)) {
|
||
$('#previewImages_' + selector).show();
|
||
$('#attachmentImageSrc_' + selector).val(bin2hex(images[photoNumber].src));
|
||
$('#attachmentImageWidth_' + selector).val(images[photoNumber].width);
|
||
$('#attachmentImageHeight_' + selector).val(images[photoNumber].height);
|
||
} else {
|
||
$('#previewImages_' + selector).hide();
|
||
}
|
||
|
||
images.length = parseInt(images.length);
|
||
var appendImage = "";
|
||
|
||
for (i = 0; i < images.length; i++) {
|
||
// For small preview images we use a smaller attachment format.
|
||
///@todo here we need to add a check for !Config::get('system', 'always_show_preview').
|
||
if (images[i].width >= 500 && images[i].width >= images[i].height) {
|
||
imageClass = 'attachment-image';
|
||
}
|
||
|
||
if (i === 0) {
|
||
appendImage += "<img id='imagePreview_" + selector + "_" + i + "' src='" + images[i].src + "' class='" + imageClass + "' ></img>";
|
||
} else {
|
||
appendImage += "<img id='imagePreview_" + selector + "_" + i + "' src='" + images[i].src + "' class='" + imageClass + "' style='display: none;'></img>";
|
||
}
|
||
}
|
||
|
||
$('#previewImage_' + selector).html(appendImage + "<div id='whiteImage' style='color: transparent; display:none;'>...</div>");
|
||
|
||
// More than just one image.
|
||
if (images.length > 1) {
|
||
// Enable the the button to change the preview pictures.
|
||
$('#previewChangeImg_' + selector).show();
|
||
|
||
if (firstPosted === false) {
|
||
firstPosted = true;
|
||
|
||
$('#previewChangeImg_' + selector).unbind('click').click(function (e) {
|
||
e.stopPropagation();
|
||
if (images.length > 1) {
|
||
$('#imagePreview_' + selector + '_' + photoNumber).css({
|
||
'display': 'none'
|
||
});
|
||
photoNumber += 1;
|
||
|
||
// If have reached the last image, begin with the first image.
|
||
if (photoNumber === images.length) {
|
||
photoNumber = 0;
|
||
}
|
||
|
||
$('#imagePreview_' + selector + '_' + photoNumber).css({
|
||
'display': 'block'
|
||
});
|
||
$('#photoNumber_' + selector).val(photoNumber);
|
||
$('#attachmentImageSrc_' + selector).val(bin2hex(images[photoNumber].src));
|
||
$('#attachmentImageWidth_' + selector).val(images[photoNumber].width);
|
||
$('#attachmentImageHeight_' + selector).val(images[photoNumber].height);
|
||
}
|
||
});
|
||
}
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Add event listener to control the attachment preview.
|
||
*
|
||
* @returns {void}
|
||
*/
|
||
var processEventListener = function() {
|
||
$('#previewSpanTitle_' + selector).unbind('click').click(function (e) {
|
||
e.stopPropagation();
|
||
if (blockTitle === false) {
|
||
blockTitle = true;
|
||
$('#previewSpanTitle_' + selector).hide();
|
||
$('#previewInputTitle_' + selector).show();
|
||
$('#previewInputTitle_' + selector).val($('#previewInputTitle_' + selector).val());
|
||
$('#previewInputTitle_' + selector).focus().select();
|
||
}
|
||
});
|
||
|
||
$('#previewInputTitle_' + selector).blur(function () {
|
||
blockTitle = false;
|
||
$('#previewSpanTitle_' + selector).html($('#previewInputTitle_' + selector).val());
|
||
$('#previewSpanTitle_' + selector).show();
|
||
$('#previewInputTitle_' + selector).hide();
|
||
});
|
||
|
||
$('#previewInputTitle_' + selector).keypress(function (e) {
|
||
if (e.which === 13) {
|
||
blockTitle = false;
|
||
$('#previewSpanTitle_' + selector).html($('#previewInputTitle_' + selector).val());
|
||
$('#previewSpanTitle_' + selector).show();
|
||
$('#previewInputTitle_' + selector).hide();
|
||
}
|
||
});
|
||
|
||
$('#previewSpanDescription_' + selector).unbind('click').click(function (e) {
|
||
e.stopPropagation();
|
||
if (blockDescription === false) {
|
||
blockDescription = true;
|
||
$('#previewSpanDescription_' + selector).hide();
|
||
$('#previewInputDescription_' + selector).show();
|
||
$('#previewInputDescription_' + selector).val($('#previewInputDescription_' + selector).val());
|
||
$('#previewInputDescription_' + selector).focus().select();
|
||
}
|
||
});
|
||
|
||
$('#previewInputDescription_' + selector).blur(function () {
|
||
blockDescription = false;
|
||
$('#previewSpanDescription_' + selector).html($('#previewInputDescription_' + selector).val());
|
||
$('#previewSpanDescription_' + selector).show();
|
||
$('#previewInputDescription_' + selector).hide();
|
||
});
|
||
|
||
$('#previewInputDescription_' + selector).keypress(function (e) {
|
||
if (e.which === 13) {
|
||
blockDescription = false;
|
||
$('#previewSpanDescription_' + selector).html($('#previewInputDescription_' + selector).val());
|
||
$('#previewSpanDescription_' + selector).show();
|
||
$('#previewInputDescription_' + selector).hide();
|
||
}
|
||
});
|
||
|
||
$('#previewSpanTitle_' + selector).mouseover(function () {
|
||
$('#previewSpanTitle_' + selector).css({
|
||
"background-color": "#ff9"
|
||
});
|
||
});
|
||
|
||
$('#previewSpanTitle_' + selector).mouseout(function () {
|
||
$('#previewSpanTitle_' + selector).css({
|
||
"background-color": "transparent"
|
||
});
|
||
});
|
||
|
||
$('#previewSpanDescription_' + selector).mouseover(function () {
|
||
$('#previewSpanDescription_' + selector).css({
|
||
"background-color": "#ff9"
|
||
});
|
||
});
|
||
|
||
$('#previewSpanDescription_' + selector).mouseout(function () {
|
||
$('#previewSpanDescription_' + selector).css({
|
||
"background-color": "transparent"
|
||
});
|
||
});
|
||
|
||
$('#closePreview_' + selector).unbind('click').click(function (e) {
|
||
e.stopPropagation();
|
||
block = false;
|
||
images = '';
|
||
isActive = false;
|
||
firstPosted = false;
|
||
$('#preview_' + selector).fadeOut("fast", function () {
|
||
$('#preview_' + selector).remove();
|
||
$('#profile-rotator').hide();
|
||
$('#' + selector).focus();
|
||
});
|
||
|
||
});
|
||
};
|
||
|
||
/**
|
||
* Convert attachmant bbcode into an array.
|
||
*
|
||
* @param {string} content Text content with the attachment bbcode.
|
||
* @returns {object || null}
|
||
*/
|
||
var getAttachmentData = function(content) {
|
||
var data = {};
|
||
|
||
var match = content.match(/(.*)\[attachment(.*?)\](.*?)\[\/attachment\](.*)/ism);
|
||
if (match === null || match.length < 5) {
|
||
return null;
|
||
}
|
||
|
||
var attributes = match[2];
|
||
data.text = trim(match[1]);
|
||
|
||
var type = '';
|
||
var matches = attributes.match(/type='(.*?)'/ism);
|
||
if (matches !== null && typeof matches[1] !== 'undefined') {
|
||
type = matches[1].toLowerCase();
|
||
}
|
||
|
||
matches = attributes.match(/type="(.*?)"/ism);
|
||
if (matches !== null && typeof matches[1] !== 'undefined') {
|
||
type = matches[1].toLowerCase();
|
||
}
|
||
|
||
if (type === '') {
|
||
return null;
|
||
}
|
||
|
||
if (
|
||
type !== 'link'
|
||
&& type !== 'audio'
|
||
&& type !== 'photo'
|
||
&& type !== 'video')
|
||
{
|
||
return null;
|
||
}
|
||
|
||
if (type !== '') {
|
||
data.type = type;
|
||
}
|
||
|
||
var url = '';
|
||
|
||
matches = attributes.match(/url='(.*?)'/ism);
|
||
if (matches !== null && typeof matches[1] !== 'undefined') {
|
||
url = matches[1].toLowerCase();
|
||
}
|
||
|
||
matches = attributes.match(/url="(.*?)"/ism);
|
||
if (matches !== null && typeof matches[1] !== 'undefined') {
|
||
url = matches[1].toLowerCase();
|
||
}
|
||
|
||
if(url !== '') {
|
||
data.url = escapeHTML(url);
|
||
}
|
||
|
||
var title = '';
|
||
|
||
matches = attributes.match(/title='(.*?)'/ism);
|
||
if (matches !== null && typeof matches[1] !== 'undefined') {
|
||
title = matches[1].toLowerCase();
|
||
}
|
||
|
||
matches = attributes.match(/title="(.*?)"/ism);
|
||
if (matches !== null && typeof matches[1] !== 'undefined') {
|
||
title = matches[1].toLowerCase();
|
||
}
|
||
|
||
if (title !== '') {
|
||
data.title = escapeHTML(title);
|
||
}
|
||
|
||
var image = '';
|
||
|
||
matches = attributes.match(/image='(.*?)'/ism);
|
||
if (matches !== null && typeof matches[1] !== 'undefined') {
|
||
image = matches[1].toLowerCase();
|
||
}
|
||
|
||
matches = attributes.match(/image="(.*?)"/ism);
|
||
if (matches !== null && typeof matches[1] !== 'undefined') {
|
||
image = matches[1].toLowerCase();
|
||
}
|
||
|
||
if (image !== '') {
|
||
data.image = escapeHTML(image);
|
||
}
|
||
|
||
var preview = '';
|
||
|
||
matches = attributes.match(/preview='(.*?)'/ism);
|
||
if (matches !== null && typeof matches[1] !== 'undefined') {
|
||
preview = matches[1].toLowerCase();
|
||
}
|
||
|
||
matches = attributes.match(/preview="(.*?)"/ism);
|
||
if (matches !== null && typeof matches[1] !== 'undefined') {
|
||
preview = matches[1].toLowerCase();
|
||
}
|
||
|
||
if (preview !== '') {
|
||
data.preview = escapeHTML(preview);
|
||
}
|
||
|
||
data.text = trim(match[3]);
|
||
data.after = trim(match[4]);
|
||
|
||
return data;
|
||
};
|
||
|
||
/**
|
||
* Process txt content and if it contains attachment bbcode
|
||
* add it to the attachment preview .
|
||
*
|
||
* @param {string} content
|
||
* @returns {void}
|
||
*/
|
||
var addBBCodeToPreview =function(content) {
|
||
var attachmentData = getAttachmentData(content);
|
||
if (attachmentData) {
|
||
reAddAttachment(attachmentData);
|
||
// Remove the attachment bbcode from the textarea.
|
||
var content = content.replace(/\[attachment.*\[\/attachment]/ism, '');
|
||
$('#' + selector).val(content);
|
||
$('#' + selector).focus();
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Add an Attachment with data from an old bbcode
|
||
* generated attachment.
|
||
*
|
||
* @param {object} json The attachment data.
|
||
* @returns {void}
|
||
*/
|
||
var reAddAttachment = function(json) {
|
||
if (isActive) {
|
||
$('#profile-rotator').hide();
|
||
return;
|
||
}
|
||
|
||
if (json.type !== 'link' && json.type !== 'video' && json.type !== 'photo' || json.url === json.title) {
|
||
$('#profile-rotator').hide();
|
||
return;
|
||
}
|
||
|
||
var obj = {data: json};
|
||
obj = sanitizeInputData(obj);
|
||
|
||
var data = obj.data;
|
||
|
||
resetPreview();
|
||
|
||
processAttachmentTpl(data);
|
||
addTitleDescription(data);
|
||
addHostToAttachment(data.url);
|
||
|
||
// Since we don't have an array of image data,
|
||
// we need to add the preview images in a different way
|
||
// than in function addImagesToAttachment().
|
||
var imageClass = 'attachment-preview';
|
||
var image = '';
|
||
|
||
if (data.image !== '') {
|
||
imageClass = 'attachment-image';
|
||
image = data.image;
|
||
} else {
|
||
image = data.preview;
|
||
}
|
||
|
||
if (image !== '') {
|
||
var appendImage = "<img id='imagePreview_" + selector + "' src='" + image + "' class='" + imageClass + "' ></img>"
|
||
$('#previewImage_' + selector).html(appendImage);
|
||
$('#attachmentImageSrc_' + selector).val(bin2hex(image));
|
||
|
||
// We need to add the image widht and height when it is
|
||
// loaded.
|
||
$('<img/>' ,{
|
||
load : function(){
|
||
$('#attachmentImageWidth_' + selector).val(this.width);
|
||
$('#attachmentImageHeight_' + selector).val(this.height);
|
||
},
|
||
src : image
|
||
});
|
||
}
|
||
|
||
processEventListener();
|
||
$('#profile-rotator').hide();
|
||
};
|
||
|
||
/**
|
||
* Add missing default properties to the input data object.
|
||
*
|
||
* @param {object} obj Input data.
|
||
* @returns {object}
|
||
*/
|
||
var sanitizeInputData = function(obj) {
|
||
if (typeof obj.contentType === 'undefined'
|
||
|| obj.contentType === null)
|
||
{
|
||
obj.contentType = "";
|
||
}
|
||
if (typeof obj.data.url === 'undefined'
|
||
|| obj.data.url === null)
|
||
{
|
||
obj.data.url = "";
|
||
}
|
||
if (typeof obj.data.title === 'undefined'
|
||
|| obj.data.title === null
|
||
|| obj.data.title === "")
|
||
{
|
||
obj.data.title = defaultTitle;
|
||
}
|
||
if (typeof obj.data.text === 'undefined'
|
||
|| obj.data.text === null
|
||
|| obj.data.text === "")
|
||
{
|
||
obj.data.text = "";
|
||
}
|
||
if (typeof obj.data.images === 'undefined'
|
||
|| obj.data.images === null)
|
||
{
|
||
obj.data.images = "";
|
||
}
|
||
|
||
if (typeof obj.data.image === 'undefined'
|
||
|| obj.data.image === null)
|
||
{
|
||
obj.data.image = "";
|
||
}
|
||
|
||
if (typeof obj.data.preview === 'undefined'
|
||
|| obj.data.preview === null)
|
||
{
|
||
obj.data.preview = "";
|
||
}
|
||
|
||
return obj;
|
||
};
|
||
|
||
/**
|
||
* Destroy the plugin.
|
||
*
|
||
* @returns {void}
|
||
*/
|
||
var destroy = function() {
|
||
$('#' + selector).unbind();
|
||
$('#preview_' + selector).remove();
|
||
binurl;
|
||
block = false;
|
||
blockTitle = false;
|
||
blockDescription = false;
|
||
cache = {};
|
||
images = "";
|
||
isExtern = false;
|
||
photoNumber = 0;
|
||
firstPosted = false;
|
||
isActive = false;
|
||
isCrawling = false;
|
||
selector = "";
|
||
};
|
||
|
||
var trim = function(str) {
|
||
return str.replace(/^\s+|\s+$/g, "");
|
||
};
|
||
var escapeHTML = function(unsafe_str) {
|
||
return unsafe_str
|
||
.replace(/&/g, '&')
|
||
.replace(/</g, '<')
|
||
.replace(/>/g, '>')
|
||
.replace(/\"/g, '"')
|
||
.replace(/\[/g, '[')
|
||
.replace(/\]/g, ']')
|
||
.replace(/\'/g, '''); // ''' is not valid HTML 4
|
||
};
|
||
|
||
// Initialize LinkPreview
|
||
init();
|
||
|
||
return {
|
||
// make crawlText() accessable from the outside.
|
||
crawlText: function(text) {
|
||
crawlText(text);
|
||
},
|
||
addBBCodeToPreview: function(content) {
|
||
addBBCodeToPreview(content);
|
||
},
|
||
destroy: function() {
|
||
destroy();
|
||
}
|
||
};
|
||
};
|
||
|
||
$.fn.linkPreview.defaults = {
|
||
defaultDescription: "Enter a description",
|
||
defaultTitle: "Enter a title"
|
||
};
|
||
|
||
/**
|
||
* Get in a textarea the previous word before the cursor.
|
||
*
|
||
* @param {object} text Textarea elemet.
|
||
* @param {integer} caretPos Cursor position.
|
||
*
|
||
* @returns {string} Previous word.
|
||
*/
|
||
function returnWord(text, caretPos) {
|
||
var index = text.indexOf(caretPos);
|
||
var preText = text.substring(0, caretPos);
|
||
// If the last charachter is a space or enter remove it
|
||
// We need this in friendica for the url preview.
|
||
var lastChar = preText.slice(-1)
|
||
if ( lastChar === " "
|
||
|| lastChar === "\n"
|
||
|| lastChar === "\r"
|
||
)
|
||
{
|
||
preText = preText.substring(0, preText.length -1);
|
||
}
|
||
|
||
// Replace new line with space.
|
||
preText = preText.replace(/\n/g, " ");
|
||
|
||
if (preText.indexOf(" ") > 0) {
|
||
var words = preText.split(" ");
|
||
return words[words.length - 1]; //return last word
|
||
}
|
||
else {
|
||
return preText;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Get in a textarea the previous word before the cursor.
|
||
*
|
||
* @param {string} id The ID of a textarea element.
|
||
* @returns {sting|null} Previous word or null if no word is available.
|
||
*/
|
||
function getPrevWord(id) {
|
||
var text = document.getElementById(id);
|
||
var caretPos = getCaretPosition(text);
|
||
var word = returnWord(text.value, caretPos);
|
||
if (word != null) {
|
||
return word
|
||
}
|
||
|
||
}
|
||
|
||
/**
|
||
* Get the cursor posiotion in an text element.
|
||
*
|
||
* @param {object} ctrl Textarea elemet.
|
||
* @returns {integer} Position of the cursor.
|
||
*/
|
||
function getCaretPosition(ctrl) {
|
||
var CaretPos = 0; // IE Support
|
||
if (document.selection) {
|
||
ctrl.focus();
|
||
var Sel = document.selection.createRange();
|
||
Sel.moveStart('character', -ctrl.value.length);
|
||
CaretPos = Sel.text.length;
|
||
}
|
||
// Firefox support
|
||
else if (ctrl.selectionStart || ctrl.selectionStart == '0') {
|
||
CaretPos = ctrl.selectionStart;
|
||
}
|
||
return (CaretPos);
|
||
}
|
||
})(jQuery);
|