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HTML5 Can't Do That

Nathan Smith
October 04, 2013

HTML5 Can't Do That

Slides from a presentation I gave at these conferences:

— Big Design
— Front Porch
— Thunder Plains
— Web Afternoon

I co-presented at Big Design with Matt Baxter.

http://twitter.com/mbxtr

Nathan Smith

October 04, 2013
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Transcript

  1. HTML5 Can’t Do That
    Surveying the Mobile Landscape
    Matt Baxter
    UX Designer
    Nathan Smith
    Principal UI Architect

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  2. Take notes if you like. Or, you can get the slides here…
    http://j.mp/html5-cant

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  3. Obligatory Intro Slide…
    — on Twitter: @mbxtr & @nathansmith
    — UI Developers (caffeine 㱺 code)
    — We do UX/web/mobile stuff at
    — We have mixed feelings about HTML5

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  4. I BUILD THE LEGACY
    APPS OF TOMORROW!
    In all honesty…
    And hey, so do you. We’re creating software UI in a
    document language. It’s a wonder anything works.

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  5. http://flickr.com/photos/djwudi/382030798
    State of mobile in 2007, before the iPhone was introduced…

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  6. NON-SCIENTIFIC SURVEY:
    What is the most frequently
    used app on your phone?
    (Ironically, probably not the “phone” app.)

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  7. What is the most frequently used app on your phone?
    (Tough to say)

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  8. NON-SCIENTIFIC SURVEY:
    What is the most frequently
    used app on your computer?

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  9. http://paulirish.com/2010/high-res-browser-icons
    What is the most frequently used app on your computer?
    Probably one of these…

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  10. This is what the Web would look
    like if there were no native apps.
    The browser is arguably the
    most important native app.

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  11. Actually, this
    (No browser UI)

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  12. Or, how would things look
    if native “beat” the Web?

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  13. …asked the headline, on a site
    with an HTML5 doctype.

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  14. Are we seriously saying that native versus HTML5 is like this?
    VS.

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  15. Can’t we all just
    get along?

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  16. Firefox can run the Unreal
    game engine in native JS!
    Okay, so it’s not mobile.
    But it’s still cool, right?

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  17. http://j.mp/candy-crush-story
    Fun Fact:
    iOS game Candy Crush Saga
    makes $850,000 per day.*
    *Assuming this peak number, sustained over an entire
    calendar year, that’s annual revenue of $310,250,000.

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  18. http://finance.yahoo.com/q/is?s=amzn+income+statement&annual
    Fun Fact:
    Amazon’s revenue is roughly
    $167,378,082 per day.*
    *61B total revenue in 2012. After operating expenses
    of 45.9B, that’s a gross profit of approximately 15.1B.

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  19. So, at the very least…
    HTML5 is what you use to buy
    things that don’t run in HTML5.

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  20. http://en.wikipedia.org/wiki/Napoleon
    This quote is sometimes (mis?) attributed to Napoleon…
    “It is not enough that
    I succeed, everyone
    else must fail.”
    He said, as he
    reached for the
    phone in his pocket.

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  21. So what?
    Hopefully by now we can all
    agree that HTML5 needn’t fail
    for native apps to be considered
    successful, or vice versa.

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  22. How we see the mobile landscape…
    Business Logic and Data Aggregation
    Approaches to Mobile Development
    Titanium
    JavaScript API
    Android, iOS
    Xamarin
    Cross-platform C# API
    Android, iOS,
    Windows Phone
    Native
    C#, Java, or Objective-C
    Android, Blackberry, iOS,
    Windows Phone, etc.
    PhoneGap
    HTML, CSS, JS
    Android, Blackberry, iOS,
    Windows Phone, etc.
    Responsive or
    Mobile Web App
    Multiple OS (browsers)
    Application Services API — JSON to/from XML, etc.
    AS/400 SQL Server
    Oracle PostgreSQL
    Web Development Native Development
    Java .NET PHP Python Ruby
    or or or or
    MySQL
    Node.js

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  23. *FPS = Frames per second. Most movies are 24 FPS. Video games aim for 60 FPS.
    When making an app, especially if not 100% native…
    It’s important to strive for 60
    FPS* and avoid interactions
    that feel awkward, lest you fall
    into the “uncanny valley” of UX.

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  24. https://en.wikipedia.org/wiki/Uncanny_valley
    In case you are unfamiliar with the term “uncanny valley”
    The uncanny valley is a hypothesis in
    the field of human aesthetics which
    holds that when human app features
    look and move almost, but not
    exactly, like natural human beings
    native apps, it causes a response of
    revulsion among human observers.

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  25. Let’s talk about
    PhoneGap

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  26. http://phonegap.com
    How PhoneGap Works
    — It embeds a WebView in a native app
    — Native app gives access to OS API’s
    — All the UI is built via HTML/CSS
    — JavaScript handles everything else
    — The app wrapper compiles via…
    Xcode, Eclipse, Visual Studio, or
    “the cloud” 㱺 build.phonegap.com

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  27. http://build.phonegap.com
    Robots. ‘nuff said…

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  28. http://phonegap.com
    Benefits of PhoneGap
    — It is “the web you already know”
    — Debugging via desktop browser
    — Access to device API’s (GPS, etc)
    — Strives to implement W3C specs
    — Camera API, etc.
    — Supports Windows Phone, too

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  29. http://phonegap.com
    Drawbacks of PhoneGap
    — WebView dependent on OS
    — “Browser” on old Android
    — IE on Windows Phone, etc.
    — Not as performant as “native”
    — Presupposes mad web skills
    — (Okay, maybe that’s a “pro”)

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  30. “Topcoat is a brand new open
    source CSS library designed
    to help developers build web
    apps with an emphasis on
    speed. It evolved from the
    Adobe design language
    developed for Brackets, Edge
    Reflow, and feedback from
    the PhoneGap app developer
    community.”
    — Brian LeRoux

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  31. http://www.sencha.com/blog/the-making-of-fastbook-an-html5-love-story
    Side-by-side comparison: Native vs. HTML5

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  32. Let’s talk about
    Titanium

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  33. http://appcelerator.com/titanium
    Benefits of Titanium
    — Native UI (not necessarily look & feel)
    — Code organization: Alloy MVC approach
    — Views are XML, JS for Models/Controllers
    — Build for iOS, Android, and Blackberry
    — Some code reuse across platforms
    — Entirely JavaScript based
    — Uses CommonJS’s AMD approach
    — Except for WebView (+HTML/CSS)

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  34. http://appcelerator.com/titanium
    Drawbacks of Titanium
    — Slow apps… I end up using WebViews
    — Workflow: code, compile, rinse, repeat
    — It’s XML/JS, but no DOM traversal
    — No first-party way to test your code
    — Regression testing is difficult
    — Added file size, due to Ti framework
    — Non-transferrable support license
    — Can’t hand off to a coworker

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  35. Abstraction layers tend to be
    harder to debug than “native”
    languages: C#, Objective-C,
    or Java — when using an IDE
    such as Visual Studio, Xcode,
    Eclipse, or Android Studio.
    With “the web,” you have
    familiar developer tools, built
    into all major browsers.

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  36. Let’s talk about
    Xamarin

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  37. http://xamarin.com
    Benefits of Xamarin
    — Speed… It compiles to native code
    — 1:1 mapping of native API’s to C#
    — Code reuse: Android, iOS, Windows
    — Visual IDE, lets designers see the UI
    — Big-name apps use it (Rdio, anyone?)
    — Transferrable support license

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  38. http://xamarin.com
    Drawbacks of Xamarin
    — Still need to learn the native API’s
    — Doesn’t abstract that away
    — Need to know C# (“pro” if you do)
    — Added file size, due to Mono framework
    — Commercial, has licensing fees

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  39. Let’s talk about
    “Native”

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  40. http://developer.android.com — http://developer.apple.com — http://developer.windowsphone.com
    Developer Sites for Various Platforms

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  41. http://developer.android.com — http://developer.apple.com — http://developer.windowsphone.com
    Benefits of Native Development
    — Default OS look & feel (UI conventions)
    — Performance (“closer to the metal”)
    — Access to device hardware (GPS, etc)
    — Benefit from latest OS enhancements
    — Able to hire specialists in that area

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  42. http://developer.android.com — http://developer.apple.com — http://developer.windowsphone.com
    Drawbacks of Native Development
    — Tied to the particular OS you built for
    — Maintaining a multi OS team/skill-set
    — Keeping app in sync with OS updates
    — Having multiple devices for testing

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  43. Let’s talk about
    The Web
    (This applies to PhoneGap, too)

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  44. wtfmobileweb.tumblr.com

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  45. Page Layout, Today
    X
    960.gs unsemantic.com

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  46. *When IE11+ is prevalent. After IE8, IE9, and IE10 finally die off.
    Page Layout, Tomorrow*
    X
    unsemantic.com philipwalton.github.io/solved-by-flexbox

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  47. http://www.dafont.com/idautomationhc39m.font
    A serendipitous use of HTML5
    HTML5 Cant Do That
    Last year, we were anticipating writing a lot of
    JavaScript to generate a barcode for a mobile
    app. To my surprise, I found a barcode font:
    “IDAutomationHC39M.” What would’ve taken
    days was mere minutes, adjusting font-size.

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  48. But what about JavaScript? — Glad you asked! :)
    Helpful utility libraries:
    — jQuery or Zepto
    ¬ jquery.com
    ¬ zeptojs.com
    — Underscore or LoDash
    ¬ underscorejs.org
    ¬ lodash.com
    — Handlebars
    ¬ handlebarsjs.com

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  49. *MVC: Model, View, Controller — MVVM: Model, View, View Model, etc.
    There are also plenty of JavaScript MV* Frameworks
    — Angular
    ¬ angularjs.org
    — Backbone
    ¬ backbonejs.org
    — Ember
    ¬ emberjs.com
    — Knockout
    & Durandal
    ¬ knockoutjs.com
    ¬ durandaljs.com
    We’ve  begun  using  this
    >

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  50. We’ve dabbled in these JS frameworks at projekt202…
    &

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  51. And now, just
    a few caveats

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  52. http://sealedabstract.com/rants/why-mobile-web-apps-are-slow
    SunSpider JS benchmarks, circa 2010 (lower is better)

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  53. http://www.mobilexweb.com/blog/safari-ios7-html5-problems-apis-review
    Safari on iOS 6 vs. Safari on iOS 7

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  54. So… Web, Cross-Platform, or Native?
    Key Considerations:
    — Features needed
    — Target market
    — Existing skill-sets
    — Talent availability
    — User experience

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  55. How we see the mobile landscape (revised)…
    Business Logic and Data Aggregation
    Approaches to Mobile Development
    Titanium
    JavaScript API
    Android, iOS
    Xamarin
    Cross-platform C# API
    Android, iOS,
    Windows Phone
    Native
    C#, Java, or Objective-C
    Android, Blackberry, iOS,
    Windows Phone, etc.
    PhoneGap
    HTML, CSS, JS
    Android, Blackberry, iOS,
    Windows Phone, etc.
    Responsive or
    Mobile Web App
    Multiple OS (browsers)
    Application Services API — JSON to/from XML, etc.
    AS/400 SQL Server
    Oracle PostgreSQL
    Web Development Native Development
    Java .NET PHP Python Ruby
    or or or or
    MySQL
    Node.js
    X
    Uncanny  valley

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  56. http://www.hdwallpapers.in/tag/tron.html
    Why? Because: “I fight for the users.” — Tron

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  57. Why Durandal
    & Knockout?

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  58. http://knockoutjs.com
    Highlights of Knockout.js
    — Model, View, View Model (MVVM)
    — Two-way data binding
    — If user interacts with page, you can
    — reflect these changes in your data
    — Declarative UI: in markup, not in JS
    — Observables: If data changes, UI updates

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  59. http://streetfighter.wikia.com
    Whenever I see “ko” in the code, I think of Street Fighter…

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  60. http://durandaljs.com
    Highlights of Durandal.js
    — Built on KO, picks up where it left off
    — Routing: based on changes to URL
    — View/state change transitions
    — Async data fetching, with Promises
    — Manage code modules with Require.js
    — Enforces consistent code structure

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  61. http://fanart.tv/artist/1a1cd7f3-e5df-4eca-bae2-2757c9e656b5/duran-duran
    Around the office, we refer to Durandal.js as “Duran Durandal”

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  62. DEMO
    http://github.com/nathansmith/ko-table

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  63. Below a certain width,
    the layout switches
    to a “mobile” view.
    The table rows & cells
    are display:block, and
    text from each
    is inserted as a label,
    preceding the data.

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  64. First Name




    Last Name




    Character First Name




    Character Last Name




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  65. // In a real app, this data would potentially be dynamic.
    // But for the purposes of this demo, is hard-coded here.
    [
    {
    "first_name": "Amy",
    "last_name": "Poehler",
    "character_first_name": "Leslie",
    "character_last_name": "Knope"
    },
    {
    "first_name": "Nick",
    "last_name": "Offerman",
    "character_first_name": "Ron",
    "character_last_name": "Swanson"
    },
    {
    "first_name": "Aziz",
    "last_name": "Ansari",
    "character_first_name": "Tom",
    "character_last_name": "Haverford"
    },
    ...
    ]

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  66. // Extend KO array, to make it sortable
    ko.observableArray.fn.sort_by = function(key, reverse) {
    var self = this;
    self.sort(function(a, b) {
    var a_key = String(a[key]);
    var b_key = String(b[key]);
    var n, val;
    if (reverse) {
    n = a_key - b_key;
    val = !isNaN(n) ? n : b_key.localeCompare(a_key);
    }
    else {
    n = b_key - a_key;
    val = !isNaN(n) ? n : a_key.localeCompare(b_key);
    }
    return val;
    });
    };

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  67. // APP.models
    models: {
    // APP.models.table_view_model
    table_view_model: function() {
    var self = this;
    // This data comes from "/json/data.js"
    APP.data = APP.data || ko.observableArray(DATA_JSON);
    self.data = APP.data;
    }
    },
    ...

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  68. // APP.init.sort_by
    sort_by: function(key) {
    var event = 'click.sort_by';
    var str = '.table-data th[data-key] a';
    body.off(event).on(event, str, function(ev) {
    var el = $(this);
    var th = el.closest('th');
    var th_other = th.siblings('th');
    var key = th.attr('data-key');
    var sort = th.attr('data-sort');
    var asc = 'ascending';
    var desc = 'descending';
    var dir = asc;
    if (!sort || sort === asc) {
    dir = desc;
    }
    var reverse = dir !== asc;
    th.addClass(on).attr('data-sort', dir);
    th_other.removeClass(on).removeAttr('data-sort');
    APP.data.sort_by(key, reverse);
    });
    },

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  69. Questions? Comments?
    Get the slides
    http://j.mp/html5-cant
    Say hi on Twitter
    @mbxtr
    @nathansmith

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