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intro.html
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<!-- THIS FILE BEGAN AS A COPY OF mooc/prop-logic/test.html .
It has been transformed little by little into the true html file
for the intro video.
-->
<!DOCTYPE html>
<html>
<head>
<!--************************************************************************
* The following imported JavaScript code is involved in copying text into *
* the copy buffer and was obtained from *
* *
* https://clipboardjs.com/ *
* *
* Note that the directory /dist that contains the clipboard.min.js file *
* must be moved to the right place and the src address corrected. *
*************************************************************************-->
<script src="dist/clipboard.min.js">
</script>
<script>
/***************************************************************************
* DATA FOR THE LECTURE *
* *
* The following data customizes the page for a particular video. *
***************************************************************************/
/***************************************************************************
* The name of the lecture. *
***************************************************************************/
var HEADING = "Introduction to TLA+" ;
/***************************************************************************
* Table of Contents *
* *
* Specified by an array, each element of which is a two-element array A *
* with A[0] the name of a section and A[1] the time in seconds at which *
* the section of the video begins. *
***************************************************************************/
var tocData =
[["Prologue", 5],
["What is TLA+?", 46],
["Abstraction", 166.5],
["What Engineers Say", 308.4],
["What Can TLA+ Check?", 581.5],
["The Basic Abstraction", 637],
["State Machines", 770],
["A Tiny Example", 865],
["Epilogue", 1190]
] ;
/***************************************************************************
* Items Displayed at Specified Times *
* *
* An array that specifies when items are to be displayed in the Bottom *
* Section of the page. Each element of the array is 3-element array A *
* where A[0] is the id of the item, which is to be displayed from time *
* A[1] through A[2] (in seconds) of the video. *
* *
* The the same id should not appear twice in the ids the elements of *
* timingData, and each of those ids should be the same as the id of one *
* of the <div> elements in in the Bottom Section of the page, which are *
* children the <div> element with id "afterVideo". *
* *
* Note: Putting something at the very end isn't a great idea because on *
* IE, if the user seeks to the end of the video, IE acts as if it's at *
* the beginning and doesn't display something that comes at the end. *
***************************************************************************/
var timingData =
[["begin-title", 0, 3],
["who-am-i", 188, 196],
["time-clocks", 243,249],
["amazon-paper", 449, 455.3],
["end-title", 1216, 2000]
] ;
</script>
<script src=tlavideo.js> </script>
<title id="titleId"></title> <!-- title set by createHeading() -->
<!-- The following loads the style sheet for the html files of the videos -->
<link rel="stylesheet" type="text/css" href="tlastyles.css">
</head>
<body onresize="getVideoMag()">
<!--************************************************************************
* The body consists of the following sections: *
* - The heading section. *
* - The video section. *
* - The bottom section. *
*************************************************************************-->
<!--************************************************************************
* The Heading Section *
* *
* It consists of a single <div> element with id "headingId". It contains *
* the name of the lecture. This section is made invisible when the *
* video is in normal playing mode - that is, with videoState = "playing" *
* and timedItemDue = "false". *
*************************************************************************-->
<div id="headingId" style="display:block">
<!-- The lecture name. -->
<div style="float:left;width:335px">
<H1 id="h1Id" style="margin-top:0em;margin-bottom:.5em">
</H1>
</div>
<script> createHeading() </script>
</div>
<!--************************************************************************
* The Video Section *
* *
* This is a <div> item containing two subitems: a <video> item that *
* displays the video and a <div> item that contains the following items: *
* *
* - The controls for the video's playing size. *
* - Controls for skipping backwards and forwards in the video. *
*************************************************************************-->
<div style="display:block;clear:left">
<!--*********************************************************************
* The <video> element. *
**********************************************************************-->
<video onpause="pauseEvent()"
onplay="playEvent()"
onfocus="videoGetsFocus()"
width=450
height=256
controls
preload = "auto"
id="videoId">
<!--********************************************************************
* The src field of the following <source> tag is the URL of the video. *
*********************************************************************-->
<!-- Here is new Channel 9 copy provided by Golnaz Alibeigi -->
<source
src="init2.mp4">
<!-- Here is the local copy of the video.
<source src= "intro2.mp4">
-->
<!-- Here is the copy of the video on Channel 9
<source
src="init2.mp4">
-->
Your browser cannot display this tutorial because it does not
support the video HTML tag.
</video>
<!--*********************************************************************
* A <div> containing items displayed on a line below the video. *
* *
* One possibility is to remove the controls from the video itself and *
* replace them with the items displayed here plus some other controls. *
* The controls could also be moved to be on top of the video, and to *
* be made visible for a few seconds when the mouse is moved over (and *
* perhaps out of) the video. This would make it possible to prevent *
* the user from putting the video into full-screen mode. *
**********************************************************************-->
<div id="below-video">
<!--*******************************************************************
* A span for showing the controls for skipping forward and back in *
* the video and the "Speed", "Contents" and "How to View" buttons. *
* It is created by a tlavideo.jss function. *
********************************************************************-->
</div>
</div>
<!--************************************************************************
* The Bottom Section *
* *
* A <div> HTML element with id "afterVideo". It normally contains the *
* table of contents when the video is not in normal playing mode. *
* However, at certain parts of the video, it will be replaced by material *
* relevant to that part. That material will consist of a sequence of *
* <div> elements, identified by their ids. *
* *
* The sequence of <div> elements consists of one with id "tocId" followed *
* by a sequence of elements whose ids are in 1-1 correspondence with the *
* ids in timingData. *
*************************************************************************-->
<div id="afterVideo" style="display:block">
<!--*********************************************************************
* A <div> element containing the table of contents, which is created *
* dynamically by the createContents JavaScript function *
**********************************************************************-->
<div id="tocId" style="float:left"></div>
<script> createContents("tocId", tocData) ; </script>
</div>
<div id="rightBottom" style="display:block" >
<!--********************************************************************
* Next comes the sequence of items that are to appear, with the video *
* minimized, at certain points in the video. The timingData variable *
* specifies at what point in the video they appear. *
*********************************************************************-->
<!--*********************************************************************
* This is the call-out to appear at the beginning of the video. *
**********************************************************************-->
<div id = "begin-title" style="float:left">
<div style =
"float:left;margin-left:-20px;font-size:20px;font-family:Calibri">
<h3 class="contents">Lecture 1</h3>
<p style="margin-left:2em;margin-top:-1em;width:15em">
Web page:
30 August 2021<BR>
Video:
17 March 2017
</p>
</div>
<div id = "item0a" style = "float:left;margin-left:-4em">
<script> createContents("item0a", tocData) ;
</script>
</div>
</div>
<!--********************************************************************
* The "Who am I?" call-out. *
*********************************************************************-->
<div id = "who-am-i" style="float:left">
<div style =
"float:left;margin-left:10px;font-size:20px;font-family:Calibri">
<h3 style="margin-bottom:30px">Find Leslie Lamport on the Web</h3>
<p style="margin-left:2em;margin-top:-1em;width:15em">
<p>
<pre> <a href="https://www.google.com/?gfe_rd=cr&ei=1qcVWJ7VOqqG8QeLnrbADQ&gws_rd=ssl#q=leslie+lamport"
target="_blank">On Google</a> <a href="http://www.bing.com/search?q=leslie+lamport&qs=n&form=QBLH&pq=leslie+lamport&sc=0-0&sp=-1&sk=&cvid=3F8AB05C0F734A209F95F97B8FD197F2"
target="_blank">On Bing</a>
</pre>
</div>
</div>
<!--********************************************************************
* The "Time Clocks" call-out. *
*********************************************************************-->
<div id = "time-clocks" style="float:left">
<div style =
"float:left;margin-left:10px;font-size:20px;font-family:Calibri">
<h4 style="margin-bottom:-15px">Time, Clocks, and the Ordering of Events in a
Distributed System</h4>
<p style="margin-left:0px;margin-top:0x;line-height:140%">
Leslie Lamport<br>
<i>Communications of the ACM</i><br>
July 1978, Volume 21, Number 7, pages 558-565<br>
<A href="https://www.microsoft.com/en-us/research/publication/time-clocks-ordering-events-distributed-system/?from=https%3A%2F%2Fresearch.microsoft.com%2Fen-us%2Fum%2Fpeople%2Flamport%2Fpubs%2Ftime-clocks.pdf"
target="_blank">Download</a>
</p>
</div>
</div>
<!--********************************************************************
* The "Amazon Paper" call-out. *
*********************************************************************-->
<div id = "amazon-paper" style="float:left">
<div style =
"float:left;margin-left:10px;font-size:20px;font-family:Calibri">
<h4 style="margin-bottom:-15px">How Amazon Web
Services Uses Formal Methods</h4>
<p style="margin-left:0px;margin-top:0x;line-height:140%">
Chris Newcombe et al.<br>
<i>Communications of the ACM</i><br>
April 2015, Volume 58, Number 4, pages 66-73<br>
<A href="http://cacm.acm.org/magazines/2015/4/184701-how-amazon-web-services-uses-formal-methods/abstract"
target="_blank">Available from the ACM</a>
</p>
</div>
</div>
<!--*********************************************************************
* The display at the end of the video. *
**********************************************************************-->
<div id = "end-title" style="float:left">
<div id = "item0b" style = "float:left">
<script> createContents("item0b", tocData) ; </script>
</div>
<div style =
"float:left;margin-left:10px;font-size:20px;font-family:Calibri">
<h3 class="contents"> The Next Video</h3>
<p style="margin-left:2em;margin-top:-1em;width:15em">
<!-- The following href must be changed for the local copy -->
<A href="smintla.html">State Machines in TLA+</a>
</p>
</div>
</div>
<!-- HERE IS AN EXAMPLE OF DISPLAYING TEXXT TO BE COPIED
<div id="item3" style="position:relative;top:2em;left:6em;width:60em">
<font style="font-size:17px;font-family:sans-serif">
<div style="width:15em;float:left;">
A tutorial might ask you to copy and paste a specification
like this one:
<div style="padding-left:3em;padding-top:.5em">
<pre class="copyText" id="bar">
MODULE DieHard
(***************************************************************************)
(* In the movie Die Hard J1, the heros must obtain exactly 4 gallons of *)
(* water using a J2 gallon jug, a J1 gallon jug, and a water faucet. Our *)
(* goal: to get TLC to solve the problem for us. *)
(* *)
(* First, we write a spec that describes all allowable behaviors of our *)
(* heros. *)
(***************************************************************************)
EXTENDS Integers
(*************************************************************************)
(* This statement imports the definitions of the ordinary operators on *)
(* integers, such as +. *)
(*************************************************************************)
CONSTANTS J1, J2, G
=============================================================================
</pre>
<button class="btn" data-clipboard-target="#bar">
Copy Text
</button>
</div>
</div>
<div style="float:left;width:20em;padding-left:3em">
Stop the video and copy this specification, either by
clicking on the button or by the usual way of copying
text. If you
paste it into a model editor in the Toolbox, it will appear
in a normal size. If you paste it into another text editor,
you may have to
increase the text's font size to make it readable.
</div>
</font>
</div>
-->
<!-- HERE IS AN EXAMPLE OF OPENING A VIDEO IN A NEW WINDOW
<div id="item2" style="position:relative; top:1em;left:4em">
<div style="text-align:left;width:30em">
<font style="font-size:19px;font-family:sans-serif">
<A href="summary-standalone.pdf" target=_blank>
<b>The TLA+ "Cheat Sheet"</b></font>
</A>
<p style="font-size:18px;font-family:sans-serif">
Left-click to open it in a new window,
or right-click <br> and select
<i>Save as ...</i>
to download it.
</p>
</div>
</div>
-->
<!--**********************************************************************
* This is the end of the sequence of <div> items that are to be *
* displayed at specified points in the video. *
***********************************************************************-->
</div>
</body>
</html>