From: Robert Kaiser Date: Fri, 31 Jan 2014 12:49:05 +0000 (+0100) Subject: add slides for FOSDEM 2014 X-Git-Url: https://git-public.kairo.at/?a=commitdiff_plain;h=46d23c7b6cc72abe1e7ccba21f4490fd62da3990;p=slides.git add slides for FOSDEM 2014 --- diff --git a/fosdem2014/be-the-future.png b/fosdem2014/be-the-future.png new file mode 100644 index 0000000..3ddc3e4 Binary files /dev/null and b/fosdem2014/be-the-future.png differ diff --git a/fosdem2014/cc-by-sa-80x15.png b/fosdem2014/cc-by-sa-80x15.png new file mode 100644 index 0000000..c67509f Binary files /dev/null and b/fosdem2014/cc-by-sa-80x15.png differ diff --git a/fosdem2014/devtools.png b/fosdem2014/devtools.png new file mode 100644 index 0000000..54b67b1 Binary files /dev/null and b/fosdem2014/devtools.png differ diff --git a/fosdem2014/index.html b/fosdem2014/index.html new file mode 100755 index 0000000..c79d1ef --- /dev/null +++ b/fosdem2014/index.html @@ -0,0 +1,193 @@ + + + + + + Developing Webapps for Firefox OS + + + + + + + + + + +
+

Table of Contents

+

Developing Webapps for Firefox OS

+ +
+

The following slides are available in this presentation:

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+
    +
+
+ +
+

Developing Webapps for Firefox OS

+

The Efficient & Simplistic Approach

+ +
+Robert Kaiser, +"KaiRo" <kairo@kairo.at> +
Project Manager, Mozilla QA +
+ +
+Sayak Sarkar +
Mozilla Rep +
+ +
+

Slides: + http://slides.kairo.at/fosdem2014/

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+ +
+
+
+ +
+

What is a Web App?

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+
    +
  • hosted / packaged
    • +
  • "web site" (HTML/CSS/JS) + app manifest
    • +
+
+
+ +
+

App Manifest

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+
{
+  "name": "Lantea Maps",
+  "description": "Display maps and record (GPS) tracks of your location.",
+  "launch_path": "/index.html",
+  "appcache_path": "/manifest.appcache",
+  "permissions": {
+    "storage": {
+      "description": "Required for saving settings, tracks, and the tile cache."
+    },
+    "geolocation": {
+      "description": "Required record tracks."
+    }
+  },
+  "developer": {
+    "name": "Robert Kaiser",
+    "url": "http://www.kairo.at/"
+  },
+  "icons": {
+    "16": "/style/lanteaIcon16.png",
+    "32": "/style/lanteaIcon32.png",
+    "64": "/style/lanteaIcon64.png",
+    "128": "/style/lanteaIcon128.png"
+  }
+}
+
+
+
+ +
+

Best Practices for Development

+ +
+

When writing, think of later maintenance:

+
    +
  • Readable for someone unfamiliar with that code
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  • Variable names that explain themselves
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  • Comments with explanations for anything non-obvious
    • +
  • That's true for CSS and HTML as well!
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  • Group thing in logical ways
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+
+
+ +
+

Best Practices for Development

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+

How should code look like when you want to write a patch?

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  • Write your own code like that!
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+ +
+

Be Careful with Libraries

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  • When starting to learn things, you should know what every line does
    • +
  • Due to e.g. CSP restrictions, libraries can give odd errors in apps
    • +
  • Size & efficiency: How much of the library do you actually use?
    • +
  • It's easier to patch your own code than a library
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  • Be aware of licenses!
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+ +
+
+ +
+

Be Careful with Libraries

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+
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  • Only use libraries if you really trust them, use a big enough portion of them, and really know what you are doing.
    • +
  • Also, ideally, the basic logic of your app stands without libraries and they are only helpers.
    • +
+
+
+ +
+

Web App Development Tools

+ +
+Firefox DevTools +

App Manager - and more!

+

DEMO TIME!

+

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+ +
+ +
+Firefox OS - Be The Future +

Questions?

+

+
+
+ + + diff --git a/fosdem2014/slides.css b/fosdem2014/slides.css new file mode 100644 index 0000000..f745b0f --- /dev/null +++ b/fosdem2014/slides.css @@ -0,0 +1,326 @@ +/************************** + * styles for talk slides * + * by Robert Kaiser * + * * + * (for FOSDEM 2013) * + **************************/ + + +/***** base style *****/ + +@font-face { + font-family: 'Open Sans'; + src: url('template/OpenSans-Regular-webfont.woff'); + font-weight: normal; + font-style: normal; +} + +@font-face { + font-family: 'Open Sans'; + src: url('template/OpenSans-Semibold-webfont.woff'); + font-weight: bold; + font-style: normal; +} + +@font-face { + font-family: 'Open Sans'; + src: url('template/OpenSans-Italic-webfont.woff'); + font-weight: normal; + font-style: italic; +} + +html { + overflow: hidden; /* to make translations not paint scrollbars */ + background: #f5f1e8 url("template/page-background.png") top left repeat; + height: 100%; +} + +body { + margin: 0px; + padding: 0px; + border: 0px; + font-family: "Open Sans", sans-serif; + font-size: 2em; + color: #333333; + background: url("template/page-background-top.png") top left repeat-x; + height: 100%; +} + +ul { + padding-left: 1.2em; + margin-bottom: 0.5em; +} + +ul:first-child, +ul:last-child { + margin-top: 0; +} + +#header { + height: 40px; + position: relative; + border-top: 1px solid white; +} + +#headerlogo { + position: absolute; + display: block; + right: 20px; + top: 0; + text-indent: -2000px; + font-size: 1px; + overflow: hidden; + height: 41px; + width: 148px; + background: url("template/mozilla-tab.png") no-repeat; +} + +#header-text { + position: relative; + top: 5px; + left: 25px; + width: calc(100% - 50px); + font-size: 20px; + font-weight: bold; + color: #808080; +} + +#header-text.neartime { + color: #80AACC; +} + +#header-text.ontime { + color: #80CC80; +} + +#header-text.overtime { + color: #FF8080; +} + +#subheader-text { + color: #808080; + position: relative; + top: 3px; + left: 25px; + width: calc(100% - 50px); + font-size: 10px; +} + +#slidenav { + position: absolute; + right: 200px; + top: 15px; + font-size: 10px; +} + +#slidenav a:link, +#slidenav a:visited { + color: #484848; +} + +#slidenav a:hover, +#slidenav a:active { + color: #0073aa; +} + +#slidenav .nolink { + color: #A0A0A0; +} + +article { + position: absolute; + width: 100%; + /* header is 40px, 7px to have a bit of distance, + * 3px height-reducing on the bottom for safety */ + top: 47px; + height: calc(100% - 50px); + overflow: auto; + + transition-property: transform, opacity; + transition-duration: 3s; + transition-timing-function: ease; + transform-origin: center 5em; + + opacity: 0; +/* + transform: translate(-100%, 0); +*/ +/* + transform: scale(0.1) rotate(360deg) translate(-200%, 0); +*/ + transform: scale(0.1) translate(-400%, 0); +} + +article[aria-selected="true"] { + opacity: 1; + transform: scale(1) rotate(0deg) translate(0, 0); +} + +article[aria-selected="true"] ~ article { + opacity: 0; +/* + transform: translate(100%, 0); +*/ +/* + transform: scale(0.1) rotate(-360deg) translate(200%, 0); +*/ + transform: scale(0.1) translate(400%, 0); +} + +/***** headers *****/ + +h1, h2, h3, h4 { + margin: 0.5em 0; + font-weight: bold; + color: #484848; + text-align: center; +} + +h1 { + margin-top: 0; + font-size: 1.7em; + text-shadow: #AAAA80 3px 3px 5px; +} + +h2 { + font-size: 1.3em; + text-shadow: #AAAA80 2px 2px 3px; +} + +h3 { + font-size: 1.1em; +} + +h4 { + font-size: 1em; + text-align: left; +} + +/***** boxes *****/ + +.simplebox { + padding: 0.5em; +} + +.captionedbox { + padding: 0px; +} + +.simplebox, +.captionedbox { + margin: 1em; + box-shadow: 0 0 0 1px #fff inset; + background: #fff; + background-image: radial-gradient(center 45px, ellipse farthest-corner, #f5f1e8 0, #fff 100%); + border-bottom: 1px solid #ddd; +} + +.captionedbox-content { + margin: 0; + padding: 0.5em; + border: 0px; + border-top: 1px solid #d6d6d6; +} + +.captionedbox-caption { + margin: 0; + padding: 0.5em; + font-weight: bold; + text-shadow: #AAAA80 1px 1px 2px; +} + +/***** misc formatting *****/ + +mark { + font-weight: bold; + color: #FF6600; + background-color: transparent; + text-shadow: #AAAA80 2px 2px 3px; +} + +.border { + border: 1px solid #6d7581; + padding: 0.5em; +} + +.sshot { + box-shadow: #6d7581 1px 1px 3px 2px; +} + +.slidepic { + float: right; + margin-left: .5em; +} + +.ensurepicinbox { + clear: both; + font-size: 1px; + margin: 0; +} + +.largetext { + font-size: 2em; +} + +ul > li { + margin: 0.5em 0; +} + +.columns2 { + -moz-columns: 2; +} + +ul.nobullets > li { + list-style-type: none; +} + +ul.arrows > li { + list-style-type: none; +} +ul.arrows > li:before { + content: "\21d2\20"; /* \2192 would be single thin arrow, hex 20 is space */ +} + +.cent { + text-align: center; +} + +.topmargin { + margin-top: 0.5em; +} + +.akey { + text-decoration: underline; +} + +a:link, a:visited { color: #0096dd; text-decoration: none; } +a:hover, a:active { color: #FF6600; text-decoration: underline; } + +mark a:link, mark a:visited { color: #FF6600; } +mark a:hover, mark a:active { color: #FF6600; } + +pre { margin: 0; } + +/***** small stuff *****/ + +.small, +.small { + font-size: 0.75em; +} + +ul.small, +.small ul { + padding: 0px; + border: 0px; + margin: 0px 0px 0px 1em; +} + +ul.small > li +.small ul > li { + margin: 0px; + padding: 0px; + border: 0px; +} + +/***** specific slides *****/ + diff --git a/fosdem2014/slides.js b/fosdem2014/slides.js new file mode 100644 index 0000000..4a0e9fe --- /dev/null +++ b/fosdem2014/slides.js @@ -0,0 +1,200 @@ +/****************************** + * JavaScript for talk slides * + * by Robert Kaiser * + * * + * (for FOSDEM 2011) * + ******************************/ + +var slides = {}; +var articleNodes; +var currentSlide; +var currentIdx; +var defaultIdx = 1; // set to slide index to show by default +var firstIdx = 2; // set no value if to use first available +var lastIdx; // set no value if to use first available + +var pageTitle, headerText, subHeaderText; +var navPrev, navNext, navPrevNolink, navNextNolink; + +// Slide timer - color variation of headerText +var slideSeconds = 2 * 60; + +// Called when the document has been loaded. +function docLoaded() { + pageTitle = document.getElementsByTagName("title")[0]; + headerText = document.getElementById("header-text"); + subHeaderText = document.getElementById("subheader-text"); + navPrev = document.getElementById("nav-prev"); + navNext = document.getElementById("nav-next"); + navPrevNolink = document.getElementById("nav-prev-nolink"); + navNextNolink = document.getElementById("nav-next-nolink"); + articleNodes = document.getElementsByTagName("article"); + + if (!firstIdx) + firstIdx = 0; + if (!lastIdx) + lastIdx = articleNodes.length - 1; + + // Get a list of all slides (articles). + subHeaderText.textContent = articleNodes.length + " slides..."; + for (var i = 0; i < articleNodes.length; ++i) { + subHeaderText.textContent = "Indexing slide " + i + " / " + articleNodes.length; + if (!articleNodes[i].id) + articleNodes[i].id = "slide_" + i; + + slides[articleNodes[i].id] = + {"idx": i, + "name": articleNodes[i].id, + "title": articleNodes[i].title ? articleNodes[i].title : articleNodes[i].id, + "obj": articleNodes[i]}; + + if (location.hash.length && + (location.hash == "#" + articleNodes[i].id || location.hash == "#" + i)) { + articleNodes[i].setAttribute("aria-selected", "true"); + currentSlide = slides[articleNodes[i].id]; + currentIdx = i; + } + } + + if (!currentSlide) { + currentIdx = defaultIdx; + currentSlide = slides[articleNodes[currentIdx].id]; + currentSlide.obj.setAttribute("aria-selected", "true"); + location.hash = "#" + currentSlide.name; + } + updateDisplay(); +} + +// Called when the hash part of the location changes. +function locationHashChanged() { + if (location.hash.length > 1) { + var hashtag = location.hash.substring(1); + // If not a number, treat as ID + if (isNaN(hashtag) && slides[hashtag]) { + currentSlide.obj.removeAttribute("aria-selected"); + currentSlide = slides[hashtag]; + currentIdx = currentSlide.idx; + currentSlide.obj.setAttribute("aria-selected", "true"); + updateDisplay(); + } + else if (articleNodes[hashtag]) { + currentSlide.obj.removeAttribute("aria-selected"); + currentIdx = hashtag; + currentSlide = slides[articleNodes[currentIdx].id]; + currentSlide.obj.setAttribute("aria-selected", "true"); + updateDisplay(); + } + } +} +window.onhashchange = locationHashChanged; + +// Update the display after we updated what slide is shown. +function updateDisplay() { + if (currentIdx >= firstIdx && currentIdx <= lastIdx && + currentSlide.name != "toc") + subHeaderText.textContent = (currentIdx - firstIdx + 1) + "/" + + (lastIdx - firstIdx + 1) + " - " + + currentSlide.title; + else + subHeaderText.textContent = currentSlide.title; + pageTitle.textContent = headerText.textContent + ": " + currentSlide.title; + if (currentIdx > firstIdx && currentSlide.name != "toc") { + navPrev.hidden = false; + navPrev.href = "#" + articleNodes[currentIdx - 1].id; + navPrevNolink.hidden = true; + } + else { + navPrev.hidden = true; + navPrevNolink.hidden = false; + } + if (currentIdx < lastIdx && currentSlide.name != "toc") { + navNext.hidden = false; + navNext.href = "#" + articleNodes[currentIdx + 1].id; + navNextNolink.hidden = true; + } + else { + navNext.hidden = true; + navNextNolink.hidden = false; + } + headerText.className = ""; + slideStart = new Date(); + if (currentSlide.name == "toc") + createTOC(); + else + setTimeout("timerFired()", timerMSec); +} + +// Create TOC list. +function createTOC() { + var list = document.getElementById("toc-list"); + if (!list.getElementsByTagName("li").length) { + for (var slide in slides) { + if (slide != "toc") { + var item = document.createElement("li"); + var link = document.createElement("a"); + var slideHeaders = slides[slide].obj.getElementsByTagName("h1"); + if (slideHeaders.length) + link.textContent = slideHeaders[0].textContent; + else + link.textContent = slides[slide].title; + link.href = "#" + slides[slide].name; + item.appendChild(link); + list.appendChild(item); + } + } + } +} + +// Do timed color variation on slides. +function timerFired() { + var slideCurrent = new Date(); + var secondsDiff = Math.round((slideCurrent.getTime() - slideStart.getTime()) / 1000); + if (secondsDiff >= slideSeconds) { + headerText.className = "overtime"; + } + else if (secondsDiff >= Math.round(2 * slideSeconds / 3)) { + headerText.className = "ontime"; + setTimeout("timerFired()", timerMSec); + } + else if (secondsDiff >= Math.round(slideSeconds / 3)) { + headerText.className = "neartime"; + setTimeout("timerFired()", timerMSec); + } + else { + // We should never come here, but if we do, go into a 100ms loop until we get over the upcoming step. + setTimeout("timerFired()", 100); + } +} +var slideStart = new Date(); +var timerMSec = 1000 * (slideSeconds / 3); +setTimeout("timerFired()", timerMSec); + +// Keyboard/click nav functionality, mostly inherited from FOSDEM 2007. +(function() { + function go(where) { + where = where || "next"; + var navElem = document.getElementById("nav-" + where); + if (!navElem.hidden) + window.location.href = navElem.href; + } + + function handleClick(e) { + e = e || event; + var target = (window.event) ? e.srcElement : e.target; + if (e.which == 1 && target.nodeName != "A" && target.nodeName != "VIDEO") + go("next"); + } + + function handleKeyPress(e) { + e = e || event; + switch (e.keyCode) { + case e.DOM_VK_LEFT: + go("prev"); break; + case e.DOM_VK_RIGHT: + go("next"); break; + } + } + + window.onclick = handleClick; + window.onkeypress = handleKeyPress; +})(); diff --git a/fosdem2014/template/OpenSans-Italic-webfont.woff b/fosdem2014/template/OpenSans-Italic-webfont.woff new file mode 100644 index 0000000..1ed8ab9 Binary files /dev/null and b/fosdem2014/template/OpenSans-Italic-webfont.woff differ diff --git a/fosdem2014/template/OpenSans-Regular-webfont.woff b/fosdem2014/template/OpenSans-Regular-webfont.woff new file mode 100644 index 0000000..bd0f824 Binary files /dev/null and b/fosdem2014/template/OpenSans-Regular-webfont.woff differ diff --git a/fosdem2014/template/OpenSans-Semibold-webfont.woff b/fosdem2014/template/OpenSans-Semibold-webfont.woff new file mode 100644 index 0000000..3a78f75 Binary files /dev/null and b/fosdem2014/template/OpenSans-Semibold-webfont.woff differ diff --git a/fosdem2014/template/mozilla-tab.png b/fosdem2014/template/mozilla-tab.png new file mode 100644 index 0000000..87f8ef9 Binary files /dev/null and b/fosdem2014/template/mozilla-tab.png differ diff --git a/fosdem2014/template/page-background-top.png b/fosdem2014/template/page-background-top.png new file mode 100644 index 0000000..ae82378 Binary files /dev/null and b/fosdem2014/template/page-background-top.png differ diff --git a/fosdem2014/template/page-background.png b/fosdem2014/template/page-background.png new file mode 100644 index 0000000..6b2d79d Binary files /dev/null and b/fosdem2014/template/page-background.png differ