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Fast multi touch enabled web sites

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Modern browsers take huge strides to enable multi-touch browsing. They also include many new HTML5 enabled capabilities that speed up the web and provide a more interactive experience. As web application designers\developers, we need to understand these capabilities and build our application to take advantage of them. This sessions will define these new capabilities and provide some tips and tricks on how to use them effectively in your web applications.

Objectives/Outcomes:
• Tips and Tricks for optimizing your web site’s performance
• The new multi-touch enabled capabilities of IE 10
• The new HTML5\CSS3 capabilities of IE 10
• Tips and Tricks for using these capabilities

Presented By: Ben Hoelting | Software Architect at Aspenware

Published in: Technology, Design
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Fast multi touch enabled web sites

  1. 1. 450 Lincoln Street Suite 101 Denver, CO 80203 719.359.9692 www.aspenware.com Building Fast Multi-Touch Enabled Web Sites Ben Hoelting @benhnet
  2. 2. Ben Hoelting In truth, he’s just a big kid. He loves designing systems that solve real world problems. There is nothing more satisfying than seeing something you helped develop being used by the end users. Ben is also involved in the technology community and runs the South Colorado .NET user group. He also enjoys speaking at tech groups and events around the country. Ben Hoelting @benhnet b.hoelting@aspenware.com
  3. 3. Agenda:  Browser Support For Touch  Do’s and Don’ts of Touch Websites  Touch Demos  Wrap-up For sample code please go to https://github.com/BenHNet/MultiTouchP ublic
  4. 4. Touch Support In Today’s Browsers
  5. 5. Hardware Accelerated Fast
  6. 6. The Power Of The Whole PC
  7. 7. Independent Composition & Manipulation  Process input as fast as possible  On a separate thread  Using the fastest methods available on current hardware  Compose Graphics as fast as possible  On a separate thread  Using the fastest methods available on current hardware Thus even with while (true) {} Animations execute, videos play, application screens transition, pages pan and zoom
  8. 8.  http://ie.microsoft.com/testdrive/  http://blog.monitis.com/index.php/2011/05/15/30-tips-to-improve- javascript-performance/  http://www.asp.net/mvc/tutorials/mvc-4/bundling-and-minification We have the technology! The Six Million Dollar Web Better… Stronger… Faster… Browsers and computers are getting better and faster. However, if developers get to know how modern browsers work we can make our applications even faster.
  9. 9. Touch Support Deliver a fast and fluid touch-first experience along with smooth animations on a wide range of form factors including those built on ARM and SOC architectures – Position and Zoom manipulation – The “right” positioning of fixed elements – Soft Keyboard Integration (impact on panning, edit, etc) – Events (is a click a click?) – Developer queues for panning and zooming for performance – Zoom and Pan content in a sub-scroller – Innovations such as back/forward navigation
  10. 10. Today’s Web wasn’t designed with a finger in mind. Touch Targeting
  11. 11. Dos and Don’ts of Touch Websites
  12. 12. Quick Steps to a Touch-Friendly Site For 2 decades, the Web has been built with mouse and keyboard in mind. Here’s a checklist to ensure your site is accessible to users of any input device.
  13. 13. With mouse, users can target links easily because the mouse cursor changes from an arrow to a pointer hand while over the link: DO: provide CSS :hover styles for links With touch, users need feedback when they touch the screen to know that they successfully targeted the link: Did I hit the link?
  14. 14. DON’T: hide content behind hover With a mouse, users can point at something to hover it independently of clicking it to activate it. For most touch devices, hover and active are the same thing. Consider tap-based menus, or scrubbing menus.
  15. 15. DO: identify input type using HTML5 Forms IE10 introduces support for HTML5 input types including, but not limited to: <input type="email"> <input type="tel"> <input type="url"> Specify the format of the input and IE10 will give your users the right touch keyboard for the job. IE10 touch-optimizes all of the supported HTML5 input elements.
  16. 16. DO: feature detect, DON’T: browser detect Detect support for the IE10 touch APIs: if(navigator.msPointerEnabled) //Supports pointer input Detect hardware support for touch: if(navigator.msMaxTouchPoints>1) //Supports multi-touch
  17. 17. DO: provide ample room for your finger Avg. 11mm 7mm 7mm 2mm padding Ideal Min Target
  18. 18. DO: use the Windows 8 “touch language” Press & Hold to Learn Tap for Primary ActionPinch to Stretch/Zoom Turn to Rotate tooltips (@title) contextmenu event gesture events Direct Manipulation zooming gesture events gesture events click event gesture events InteractionTools
  19. 19. DON’T: reinvent touch interactions
  20. 20. DO: take advantage of enhanced pinning and tile notifications Your site can now define the tile(s) to use when your site is pinned to the start screen. Use buildmypinnedsite.com to create a tile for all sizes and setup notifications.
  21. 21. Good Touch Sites Demo  http://windows.microsoft.com/en-us/internet-explorer/browser- ie#touchweb=touchvidtab1  http://www.msn.com
  22. 22. Working with Touch
  23. 23. Deep Dive into the IE Touch APIs Pointer, Gesture Events CSS Custom Panning, Zooming, and Swipes Direct Manipulation Pan/Zoom, HTML5 Controls, Touch Targeting
  24. 24. By default, pan, zoom, and double-tap “win” over DOM events. When IE takes over a touch contact for pan/zoom/double-tap, the page is signaled with an MSPointerCancel event. So, if you need move events, drag and drop, tapping fast, pinching, etc. then configure IE for just the touch actions you do want: -ms-touch-action: none | manipulation | double-tap-zoom | auto | inherit; Configuring Touch Default Actions (Or, “how to get events to fire when dragging your finger”)
  25. 25. Custom Pan, Swipe, & Zoom HTML CSS <div id="scrollViewer"> <div id="scrollContents"> <div class="page“>1</div> <div class="page“>2</div> <div class="page“>3</div> </div> </div> #scrollViewer { width: 500px; height: 500px; overflow-x: scroll; overflow-y: hidden; -ms-scroll-snap-type: mandatory; -ms-scroll-snap-points-x: snapInterval(0px, 100%); } .page { width: 500px; float: left; } Page 2Page 1 Page 3 Panning Snap Points
  26. 26. Touch CSS Demos
  27. 27. Simple Photo Gallery Viewer <style> img { width:500px; vertical-align: top; } .photoGallery { width: 500px; height: 340px; overflow-x: auto; overflow-y: hidden; white-space: nowrap; -ms-scroll-snap-points-x: snapInterval(0px,500px); -ms-scroll-snap-type: mandatory; -ms-overflow-style: none; -ms-scroll-chaining:none; } </style> <h1>Photos</h1> <div class="photoGallery"> <img src="img1.jpg"><img src="img2.jpg"><img src="img3.jpg"><img src="img4.jpg"> </div>
  28. 28. http://www.w3.org/TR/touch-events/ W3C Touch Events Events Event Properties touchstart touchmove touchend touchcancel clientX clientY pageX pageY screenX screenY
  29. 29. Pointer events help make your site have no compromises because they’re hardware agnostic. Raw Input MSPointer Events Pointer Mouse Pen Touch Events Event Properties MSPointerDown MSPointerMove MSPointerUp MSPointerOver MSPointerOut MSPointerCancel Everything you have for mouse, plus: pointerType pressure rotation tiltX tiltY width height Capture individual contacts to elements: elm.msSetPointerCapture(pointerId); elm.msReleasePointerCapture(pointerId);
  30. 30. Touch Events - “Can I Use”
  31. 31. Touch Event Demos
  32. 32. Simple Google Touch Example function ol() { canvas = document.getElementById('canvas'); ctx = canvas.getContext('2d'); timer = setInterval(update, 15); canvas.addEventListener('touchend', function () { ctx.clearRect(0, 0, w, h); moving = false; }); canvas.addEventListener('touchmove', function (event) { event.preventDefault(); touches = event.touches; }); canvas.addEventListener('touchstart', function (event) { moving = true; console.log('start'); }); };
  33. 33. Simple IE Touch Example function ol() { canvas = document.getElementById('canvas'); ctx = canvas.getContext('2d'); timer = setInterval(update, 30); canvas.addEventListener('MSPointerMove', function (event) { if (event.button > 0 || event.pointerType == event.MSPOINTER_TYPE_TOUCH) { event.preventDefault(); makeCircle(event.pageX, event.pageY); } }); canvas.addEventListener('MSPointerUp', function (event) { if (event.button > 0 || event.pointerType == event.MSPOINTER_TYPE_TOUCH) { event.preventDefault(); ctx.clearRect(0, 0, w, h); makeCircle(event.pageX, event.pageY); } }); };
  34. 34. Touch Event Libraries
  35. 35. JQuery UI Touch Events $("#canvas").bind("tap", canvasTapped );  http://api.jquerymobile.com/tap/
  36. 36. Kendo UI Touch Events $("#canvas").kendoTouch({ multiTouch: true, touchstart: canvasTapped });  http://http://docs.telerik.com/kendo-ui/api/mobile/touch
  37. 37. Touch Library Demos
  38. 38. Wrap Up Fast Touch Support Touch Ready Sites Modern browsers are re-imagined to support touch. IE is input device agnostic and provides APIs for using touch events. Well written apps can make the web even faster Touch Standards For the past two decades web sites have been designed for mouse input. Touch is a paradigm shift for web design. Touch API standards are not defined. Requires extra work to support all browsers. 3rd party touch JS libraries provide some cross- browser support.
  39. 39. Resources:  http://http://windows.microsoft.com/en-us/internet-explorer/browser- ie#touchweb=touchvidtab1  http://ie.microsoft.com/testdrive/  http://blog.monitis.com/index.php/2011/05/15/30-tips-to-improve- javascript-performance/  http://blogs.msdn.com/b/ie/  http://www.asp.net/mvc/tutorials/mvc-4/bundling-and-minification  http://www.webplatform.org/  http://channel9.msdn.com/Events/Build/2013/3-071  http://http://docs.telerik.com/kendo-ui/api/mobile/touch  http://www.designyourway.net/blog/resources/jquery-plugins-that-handle- touch-events-43-items/
  40. 40. 450 Lincoln Street Suite 101 Denver, CO 80203 719.359.9692 www.aspenware.com Building Fast Multi-Touch Enabled Web Sites Ben Hoelting @benhnet

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