fix(platform): update ripple activator fn

Closes #671

ionic/platform/platform.ts

@@ -7,8 +7,8 @@
 +*/
 
 
-import * as util from '../util/util';
-import * as dom from '../util/dom';
+import {getQuerystring, extend} from '../util/util';
+import {ready, windowDimensions, flushDimensionCache} from '../util/dom';
 
 
 /**
@@ -162,7 +162,7 @@ export class Platform {
     } else {
       // there is no custom ready method from the engine
       // use the default dom ready
-      dom.ready(resolve);
+      ready(resolve);
     }
   }
 
@@ -186,7 +186,7 @@ export class Platform {
   url(val) {
     if (arguments.length) {
       this._url = val;
-      this._qs = util.getQuerystring(val);
+      this._qs = getQuerystring(val);
     }
     return this._url;
   }
@@ -204,17 +204,17 @@ export class Platform {
 
   navigatorPlatform(val) {
     if (arguments.length) {
-      this._bPlt = (val || '').toLowerCase();
+      this._bPlt = val;
     }
     return this._bPlt || '';
   }
 
   width() {
-    return dom.windowDimensions().width;
+    return windowDimensions().width;
   }
 
   height() {
-    return dom.windowDimensions().height;
+    return windowDimensions().height;
   }
 
   isPortrait() {
@@ -230,7 +230,7 @@ export class Platform {
     clearTimeout(self._resizeTimer);
 
     self._resizeTimer = setTimeout(() => {
-      dom.flushDimensionCache();
+      flushDimensionCache();
 
       for (let i = 0; i < self._onResizes.length; i++) {
         try {
@@ -295,6 +295,16 @@ export class Platform {
     return rgx.test(this._ua || '');
   }
 
+  /**
+   * TODO
+   * @param {TODO} navigatorPlatformExpression  TODO
+   * @returns {boolean} TODO
+   */
+  testNavigatorPlatform(navigatorPlatformExpression) {
+    let rgx = new RegExp(navigatorPlatformExpression, 'i');
+    return rgx.test(this._bPlt || '');
+  }
+
   /**
    * TODO
    * @param {TODO} userAgentExpression  TODO
@@ -388,7 +398,7 @@ export class Platform {
         let engineMethods = engineNode.methods();
         engineMethods._engineReady = engineMethods.ready;
         delete engineMethods.ready;
-        util.extend(this, engineMethods);
+        extend(this, engineMethods);
       }
 
       let platformNode = rootPlatformNode;

ionic/platform/registry.ts

@@ -48,7 +48,24 @@ Platform.register({
   ],
   settings: {
     activator: function(p) {
-      return (p.version().major < 5 && p.navigatorPlatform().indexOf('linux') > -1) ? 'none' : 'ripple';
+      // md mode defaults to use ripple activator
+      // however, under-powered devices shouldn't use ripple
+      // if this a linux device, and is using Android Chrome v36 (Android 5.0)
+      // or above then use ripple, otherwise do not use a ripple effect
+      if (p.testNavigatorPlatform('linux')) {
+        let chromeVersion = p.matchUserAgentVersion(/Chrome\/(\d+).(\d+)?/);
+        if (chromeVersion) {
+          // linux android device using modern android chrome browser gets ripple
+          return (parseInt(chromeVersion.major, 10) < 36 ? 'none' : 'ripple');
+        }
+        // linux android device not using chrome browser checks just android's version
+        if (p.version().major < 5) {
+          return 'none';
+        }
+      }
+
+      // fallback to always use ripple
+      return 'ripple';
     },
     hoverCSS: false,
     keyboardHeight: 300,
@@ -158,5 +175,5 @@ function isIOSDevice(p) {
   // checks navigator.platform to see if it's an actual iOS device
   // this does not use the user-agent string because it is often spoofed
   // an actual iPad will return true, a chrome dev tools iPad will return false
-  return /iphone|ipad|ipod/i.test(p.navigatorPlatform());
+  return p.testNavigatorPlatform(/iphone|ipad|ipod/);
 }