metamaps--metamaps/app/assets/javascripts/src/check-canvas-support.js
Connor Turland 8c51108a0c enable shared private and public maps (#530)
* enable shared private and public maps

* change the list

* yeehaw add collaborators

* I believe this fixes the error connor brought up

* when topic or synapse is no longer on a map, don't defer

* needs to be before?

* just do it in the controller

* make recommendation they sign in and retry

* better email

* config for mailer previews

* improve wording

* shouldn't have included that

* switch to green

* don't execute if there's no map

* wasn't including the right people in some circumstances

* Finish breaking out JS files (#551)

* metamaps.Realtime refactor

* Metamaps.Util

* Metamaps.Visualize

* Metamaps.SynapseCard

* Metamaps.TopicCard

* Metamaps.Create.js

* Remove erb extension from Metamaps.Map.js

* Metmaps.Account and Metamaps.GlobalUI remove extension

* Metamaps.JIT no more erb extension

* move Backbone.init; standard-format on Metamaps.js.erb

* factor out canvas support check function

* some llittle template bugs

* remove featured from signed in explore maps bar

* don't let it overflow off the page
2016-04-24 11:50:35 -04:00

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820 B
JavaScript

// TODO document this user agent function
var labelType, useGradients, nativeTextSupport, animate
;(function () {
var ua = navigator.userAgent,
iStuff = ua.match(/iPhone/i) || ua.match(/iPad/i),
typeOfCanvas = typeof HTMLCanvasElement,
nativeCanvasSupport = (typeOfCanvas == 'object' || typeOfCanvas == 'function'),
textSupport = nativeCanvasSupport && (typeof document.createElement('canvas').getContext('2d').fillText == 'function')
// I'm setting this based on the fact that ExCanvas provides text support for IE
// and that as of today iPhone/iPad current text support is lame
labelType = (!nativeCanvasSupport || (textSupport && !iStuff)) ? 'Native' : 'HTML'
nativeTextSupport = labelType == 'Native'
useGradients = nativeCanvasSupport
animate = !(iStuff || !nativeCanvasSupport)
})()