Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Weird Browsers @ WebPerfDays

Weird Browsers @ WebPerfDays

Now that everybody builds responsive sites and mobile has become the new normal, are there still any weird browsers left? The latest generation of Smart TV's run on the same operating systems as our mobile devices. How weird can these browsers be? Perhaps Smart TV's aren't as smart as we all would like to think. But there are more weird browsers. How do game console handle your websites and are set top boxes really capable of browsing the web?

Niels Leenheer

October 31, 2015
Tweet

More Decks by Niels Leenheer

Other Decks in Technology

Transcript

  1. ?weird browsers?
    webperfdays amsterdam — october 31st 2015

    View Slide

  2. View Slide

  3. View Slide

  4. 402

    Edge 12
    400

    Safari 9
    521

    Chrome 46
    466

    Firefox 41
    555
    0
    desktop browsers results on html5test.com

    View Slide

  5. 402

    Edge 12
    400

    Safari 9
    466

    Firefox 41
    555
    0
    desktop browsers results on html5test.com
    521

    Chrome 46

    View Slide

  6. 402

    Edge 12
    400

    Safari 9
    521

    Chrome 46
    466

    Firefox 41
    555
    0
    desktop browsers results on html5test.com
    16

    Internet Explorer 6
    458

    Edge 13
    336

    Internet Explorer 11

    View Slide

  7. View Slide

  8. ?weird browsers?

    View Slide

  9. browsers and devices that do not

    adhere to current expectations

    View Slide

  10. if ('ontouchstart' in window) {
    element.addEventListener(‘touchstart’, function(e) {

    ...

    });
    }

    else {

    element.addEventListener(‘click’, function(e) {

    ...

    });
    }

    View Slide

  11. View Slide

  12. ?weird browsers?

    View Slide

  13. ?weird browsers?

    View Slide

  14. game consoles

    View Slide

  15. portable game consoles

    View Slide

  16. smart tvs

    View Slide

  17. e-readers

    View Slide

  18. smartwatches

    View Slide

  19. photo cameras

    View Slide

  20. cars
    Andre Jay Meissner

    View Slide

  21. View Slide

  22. smart tvs, set-top boxes
    and consoles

    View Slide

  23. “big screen browsers”

    View Slide

  24. View Slide

  25. television browsers are pretty good
    the last generation of television sets use
    operating systems that originate from mobile

    View Slide

  26. 418

    LG WebOS
    281

    Google TV
    238

    LG Netcast
    465

    Samsung Tizen
    449

    Opera Devices
    301

    Panasonic

    Viera
    smart tv results on html5test.com
    555
    0
    414

    Panasonic

    Firefox OS
    407

    Samsung

    2014

    View Slide

  27. 328

    Playstation 4
    53

    Playstation 3
    309

    Playstation TV
    98

    Xbox 360
    286

    Xbox One
    311

    Wii U
    66

    Wii
    555
    0
    console results on html5test.com

    View Slide

  28. View Slide

  29. 1
    control

    View Slide

  30. the biggest challenge of 

    of television browsers

    View Slide

  31. navigation
    (without mouse or touchscreen)

    View Slide

  32. d-pad

    View Slide

  33. navigation with the d-pad

    View Slide

  34. but it can be worse:
    moving the cursor with the arrow keys

    View Slide

  35. alternatives

    View Slide

  36. analog controllers

    View Slide

  37. remotes with trackpad

    View Slide

  38. remotes with airmouse

    View Slide

  39. second screen

    View Slide

  40. many manufacturers also create apps for
    controlling the smart tv, console or set-top box

    View Slide

  41. View Slide

  42. View Slide

  43. text input
    (without keyboard)

    View Slide

  44. d-pads

    View Slide

  45. text input with the d-pad

    View Slide

  46. alternatives

    View Slide

  47. remotes with keyboards

    View Slide

  48. wireless keyboards

    View Slide

  49. and apps

    View Slide

  50. View Slide

  51. gesture control
    (throw your hands up in the air,

    and wave ’em like you just don’t care)

    View Slide

  52. navigation with gesture control

    View Slide

  53. can we control these input methods 

    directly from javascript?

    View Slide

  54. the d-pad
    maybe

    View Slide

  55. keyboard events
    window.addEventListener("keypress", function(e) {

    e.preventDefault(); // no navigation

    ...
    });
    1

    View Slide

  56. the gamepad
    maybe

    View Slide

  57. the gamepad api
    var gamepads = navigator.getGamepads();

    for (var i = 0; i < gamepads.length; i++) {

    ...

    }
    1

    View Slide

  58. wii u api
    window.setInterval(function() {

    var state = window.wiiu.gamepad.update();

    ...
    }, 100);
    2

    View Slide

  59. the webcam
    no*

    View Slide

  60. 2
    the difference between 

    a television and a monitor

    View Slide

  61. overscan
    (let’s make it a bit more complicated)

    View Slide

  62. due to historical reasons televisions will 

    not show the borders of the image

    View Slide

  63. the television enlarges all images 

    from the hdmi input by 5%
    1920 pixels

    View Slide

  64. the television enlarges all images 

    from the hdmi input by 5%
    1920 pixels

    View Slide

  65. the image is then cropped to 

    1920 by 1080 pixels

    View Slide

  66. the image is then cropped to 

    1920 by 1080 pixels

    View Slide

  67. overscan causes blurry output
    +5%

    View Slide

  68. solution 1
    overscan correction

    View Slide

  69. the browser does not use

    the edges of the image
    1920 pixels

    View Slide

  70. the television will enlarge 

    the image by 5%
    1920 pixels

    View Slide

  71. and the content is now fully visible, the unused
    border is cropped out of the final image

    View Slide

  72. but not every television set enlarges the 

    image by exactly 5%, this can vary between
    manufacturers and models

    View Slide

  73. configure the correct overscan correction 

    in the system preferences

    View Slide

  74. the playstation 4 will always show the browser
    without overscan correction in full screen mode

    View Slide

  75. the playstation 4 will always show the browser
    without overscan correction in full screen mode

    View Slide

  76. solution 2
    no overscan

    View Slide

  77. it is possible to disable overscan 

    on many television sets
    ‘screen fit’, ‘pixel perfect’ or ‘just scan’

    View Slide

  78. the playstation 3 always shows the 

    browser with overscan correction

    View Slide

  79. the viewport
    (i really need some aspirin!)

    View Slide

  80. the visual viewport
    determines which
    part of the website
    will be visible
    measured in 

    device pixels
    the visual viewport

    View Slide

  81. the visual viewport
    determines which
    part of the website
    will be visible
    measured in 

    device pixels
    the visual viewport

    View Slide

  82. the visual viewport
    the visual viewport
    determines which
    part of the website
    will be visible
    measured in 

    device pixels

    View Slide

  83. the layout viewport
    the layout viewport
    determines the
    width in css pixels
    on which the site
    will be rendered

    View Slide

  84. the layout viewport
    the layout viewport
    determines the
    width in css pixels
    on which the site
    will be rendered

    View Slide

  85. the layout viewport
    the layout viewport
    determines the
    width in css pixels
    on which the site
    will be rendered

    View Slide

  86. the default layout viewport is different on 

    every smart tv, console or set-top box
    between 800 and 1920 css pixels

    View Slide

  87. it is possible to change the width of the 

    layout viewport with the ‘meta viewport’ tag


    physical device pixels
    device scale factor

    View Slide

  88. complication:

    meta viewport is not supported
    it is not possible to get the same layout viewport 

    width in all of the different browsers

    View Slide

  89. complication:

    device pixel ratio is not supported
    there is no proper way to show images with the same
    resolution as the physical screen

    View Slide

  90. nintendo wii
    800 pixels

    View Slide

  91. nintendo wii u
    980 pixels

    View Slide

  92. lg webos
    960 pixels

    View Slide

  93. microsoft xbox 360
    1041 of 1050 pixels

    View Slide

  94. microsoft xbox one
    1200 of 1236 pixels

    View Slide

  95. sony playstation 3
    1824 pixels

    View Slide

  96. sony playstation 4
    1920 pixels

    View Slide

  97. Nintendo Wii 800
    LG WebOS 960
    Nintendo Wii U 980
    Philips 2014 series 980
    Google TV 1024
    Playstation TV 1024
    Samsung Tizen 1024
    Xbox 360 1051
    Xbox One 1200
    LG Netcast 1226
    Panasonic Viera 1256
    Opera Devices 1280
    Samsung 2014 series 1280
    Panasonic Firefox OS 1536
    Playstation 3 1824
    Playstation 4 1920

    View Slide

  98. device pixels != device pixels
    (of course not)

    View Slide

  99. sometimes devices pixels are not 

    physical devices pixels, but virtual device pixels
    the browser renders in a lower resolution 

    which is upscaled to the resolution of the display

    View Slide

  100. 3
    distance to the screen

    View Slide

  101. “Make fonts and graphics on the site larger to
    account for viewing distance. People sit
    proportionally farther from a TV than from a
    computer monitor of the same size.”

    – Internet Explorer for Xbox One Developer Guide
    https://msdn.microsoft.com/en-us/library/dn532261(v=vs.85).aspx

    View Slide

  102. responsive design
    the size of the contents is determined 

    by the width of the viewport

    View Slide

  103. use percentages for positioning
    .left { width: 60%; }

    .right { left: 60%; width: 40%; }
    1

    View Slide

  104. base the fontsize on the viewport
    document.body.style.fontSize = 

    ((window.innerWidth / 1920) * 300) + '%';
    2

    View Slide

  105. or maybe use viewport units – with polyfill
    body { font-size: 3vw; }

    .left { width: 60vw; height: 100vh; }

    .right { width: 40vw; height: 100vh; }
    3

    View Slide

  106. use a safe margin around the contents
    body {

    padding: 5%;

    }
    4

    View Slide

  107. youtube tv website

    View Slide

  108. identifying smart tv’s
    (css for televisions)

    View Slide

  109. css media types
    @media tv {

    body {

    font-size: 300%;
    }
    }
    1
    ×

    View Slide

  110. css media types
    all television browsers use the 

    css media type ‘screen’
    1

    View Slide

  111. screen size
    if (screen.width == 1920 && screen.height == 1080) {

    document.body.className += " television";

    }
    2
    ×

    View Slide

  112. screen size
    monitors and phones often use 

    hd resolutions, television browsers
    often use other resolutions
    2

    View Slide

  113. useragent sniffing
    if (navigator.userAgent.search(/TV/i) >= 0) {

    document.body.className += " television";

    }
    3
    ×

    View Slide

  114. useragent sniffing
    not all smart tv’s are recognisable
    Mozilla/5.0 (X11; Linux; ko-KR) 

    AppleWebKit/534.26+ (KHTML, like Gecko) 

    Version/5.0 Safari/534.26+
    3

    View Slide

  115. couch mode
    the only reliable way to optimise a website 

    for television is to make two different websites…
    or give the user the ability to switch on 

    couch mode
    4

    View Slide

  116. 4
    be careful with

    feature detection

    View Slide

  117. “Basically every feature that talks to the 

    operating system or hardware, is suspect.”

    – Me
    http://blog.html5test.com/2015/08/the-problems-with-feature-detection/

    View Slide

  118. if (!!navigator.geolocation) {
    navigator.geolocation.getCurrentPosition(

    success, failure

    );
    }

    else {

    // alternative

    }

    View Slide

  119. if (!!navigator.geolocation) {
    navigator.geolocation.getCurrentPosition(

    success, failure

    );
    }
    1 failure is called with a “permission denied” error code
    2 no callback at all to success or failure

    View Slide

  120. if (!!navigator.geolocation) {
    navigator.geolocation.getCurrentPosition(

    success, failure

    );
    }
    3 success is called with longitude = 0 and latitude = 0
    4 success is called with the coordinates of 

    Mountain View, USA

    View Slide

  121. is there a future for web apps 

    on the big screen?

    View Slide

  122. View Slide

  123. the new apple tv does not ship 

    with a browser by default

    View Slide

  124. android tv does not ship 

    with a browser by default

    View Slide

  125. View Slide

  126. ?weird browsers!

    View Slide

  127. “We cannot predict future behavior 

    from a current experience that sucks”

    – Jason Grigsby
    http://blog.cloudfour.com/on-the-device-context-continuum/

    View Slide

  128. but wait…

    View Slide

  129. browsers!
    weird

    View Slide

  130. browsers!
    weird

    View Slide

  131. browsers!
    browsers
    browsers
    browser
    browsers!
    browsers
    rowsers
    browsers
    browsers
    brows
    browsers
    wsers!
    browsers

    View Slide

  132. one arm arm injury new parent
    permanent situational
    https://www.microsoft.com/en-us/design/practice

    View Slide

  133. View Slide

  134. thank you
    niels leenheer

    @html5test

    View Slide