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// ==UserScript==
// @author @_wad1m
// @name Lynda.com plugin
// @namespace http://tampermonkey.net/
// @description video large captions resized, download video link, captions contorls
// @version 0.5
var $PLUGIN_VERSION = "Lynda.com plugin [ V 0.5 ]";
// @match *://www.lynda.com/*
// @grant none
// @require http://code.jquery.com/jquery-latest.js
// @updateURL https://openuserjs.org/meta/wadim/Lynda.com_plugin.meta.js
// ==/UserScript==
//
// -- LOG --
// 0.1 - Increase text video captions size and make more readable with static value of 150%
// 0.2 - Fix fullscreen layout bug
// 0.3 - Fetch video link and add download button
// 0.4 - Added captions controls ( change size , toogle visability )
// 0.5 - Added comments and autoupdate
// -- LOG --
//
// default variables
var _lynd_default_variables =
{
_lynd_captions_size : 1.5,
_lynd_captions_visible : true
};
// Local storage
function _lynd_local_storage_init()
{
if (typeof(Storage) !== "undefined")
{
// Apply default values to local storage
for( var key in _lynd_default_variables )
{
if( localStorage.getItem( key ) === null )
localStorage.setItem( key, _lynd_default_variables[ key ] );
}
}
}
// get / set local storage variables
function _lynd_local_storage( variable, value )
{
// GET
if (typeof value === 'undefined')
{
if (typeof(Storage) !== "undefined") return localStorage.getItem( variable );
else return _lynd_default_variables[ variable ];
}
// SET
else
{
if (typeof(Storage) !== "undefined") localStorage.setItem( variable, value );
else _lynd_default_variables[ variable ] = value;
}
}
// scan for captions added to page
function _lynd_styleVideo()
{
// read style variables
var cap_size = parseFloat( _lynd_local_storage('_lynd_captions_size' ) );
var sv_cap_size = Math.round( cap_size * 100 ) + "%";
var sv_cap_height = ( cap_size * 50 ) + "px";
var sv_cap_visibile = _lynd_local_storage('_lynd_captions_visible' ) == 'false' ? 'hidden' : 'visible';
// apply style
$('span.mejs-captions-text')
.css("color", "rgb(255, 255, 255)")
.css("line-height", sv_cap_height )
.css("padding", "10px")
.css("background-color", "rgb(0, 0, 0)")
.css("font-size", sv_cap_size )
.css("box-shadow", "0 0 0 5px black")
.css("visibility", sv_cap_visibile );
// fix fullscreen layout bug
$('video.player').css('margin-top', '0');
// call the function each second
setTimeout( _lynd_styleVideo, 1000 );
}
// plugin container
var _lynd_pluginContainer;
// init plugin container
function _lynd_createPluginContainer()
{
_lynd_pluginContainer = $('<div class="_lynd_pluginContainer">');
$('div#sidebar-container').parent().parent().prepend( _lynd_pluginContainer );
$("._lynd_pluginContainer").attr('style',
"margin: 10px 0;padding: 10px;background: white;border-radius: 7px;box-shadow: 0 0 5px 1px rgba(0,0,0,.07);");
var style = 'margin-bottom:15px;padding-bottom:8px;border-bottom:1px solid #E0E0E0';
_lynd_pluginContainer.prepend( $('<div style="' + style + '">' + $PLUGIN_VERSION + '</div>') );
}
// download video
var _lynd_downloadButton;
// init download button
function _lynd_createDownloadButton()
{
_lynd_downloadButton = $('<a>');
_lynd_pluginContainer.append( _lynd_downloadButton );
}
// auto fetch video link
function _lynd_updateDownloadButton(){
var link = $('video.player').attr('src');
if( link === undefined )
{
_lynd_downloadButton.text("Press play to capture video link...");
_lynd_downloadButton.attr("href", "");
}
else
{
_lynd_downloadButton.text(" > DOWNLOAD LINK < ");
_lynd_downloadButton.attr("href", link );
}
// call this function each 5 second
setTimeout( _lynd_updateDownloadButton, 5000 );
}
// captions control
var _lynd_captionsControls;
var _lynd_captions_size_label;
var _lynd_captions_display_toogle;
// init caption controls
function _lynd_createCaptionsControls()
{
// make container
_lynd_captionsControls = $('<div class="_lynd_captionsControls">');
_lynd_pluginContainer.append( _lynd_captionsControls );
// captions size function
function change_capt_size( value ) {
var val = parseFloat( value );
// limit caption size value between 25 % and 250 %
val = val < 0.25 ? 0.25 : ( val > 2.50 ? 2.50 : val );
// save value to local storage
_lynd_local_storage('_lynd_captions_size', val );
// display caption size on page
_lynd_captions_size_label.text( Math.round( val * 100 ) + "%" );
}
// info label
_lynd_captionsControls.append( $('<br/><a> Change captions size</a>') );
// button to make captions smaller
var button = $('<button style="padding:10px; margin: 5px">[ - ]</button>');
_lynd_captionsControls.append( button );
button.on( 'click', function() {
var value = parseFloat( _lynd_local_storage('_lynd_captions_size' ) ) - 0.25;
change_capt_size( value );
});
// label to display captions size
var _lynd_captions_size_label = $("<a class='_lynd_captions_size_label'></a>");
_lynd_captionsControls.append( _lynd_captions_size_label );
// display caption size default value / saved value from local storage
change_capt_size( _lynd_local_storage('_lynd_captions_size' ) );
// button to make captions larger
button = $('<button style="padding:10px; margin: 5px">[ + ]</button>');
_lynd_captionsControls.append( button );
button.on( 'click', function() {
var value = parseFloat( _lynd_local_storage('_lynd_captions_size' ) ) + 0.25;
change_capt_size( value );
});
// caption cisibility function
function change_capt_visability( value )
{
_lynd_local_storage('_lynd_captions_visible', value );
}
// read checkbox default status
var status = _lynd_local_storage('_lynd_captions_visible') == 'true' ? ' checked ' : '';
// make checkbox
_lynd_captions_display_toogle = $('<p><input class="_lynd_captions_display_toogle" type="checkbox" '+status+'>. Captions are visible</p>');
_lynd_captionsControls.append( _lynd_captions_display_toogle );
_lynd_captionsControls.on('click', function() {
change_capt_visability( $('._lynd_captions_display_toogle').prop("checked") === true ? 'true' : 'false' );
});
}
// constractor
(function() {
'use strict';
_lynd_styleVideo();
_lynd_local_storage_init();
_lynd_createPluginContainer();
_lynd_createDownloadButton();
_lynd_updateDownloadButton();
_lynd_createCaptionsControls();
})();