Merge branch 'master' into myankov/merge-release-master

CodingConvention.md

@@ -205,7 +205,7 @@ let b = {"good": "code"
 
 ## Equality operator
 
-Use the [strict comparison operators][comparisonoperators]. The triple equality operator helps to maintain data type integrity throughout code.
+Use the [strict comparison operators][comparisonoperators]. The triple equality operator helps to maintain data type integrity throughout the code.
 
 *Right:*
 
@@ -341,8 +341,8 @@ the last row of a big room can comfortably read. So don't count on them having
 perfect vision and limit yourself to 1/2 of your screen height per function (no screen rotation :).
 
 ## Return statements
-There are few important considerations here:
+There are a few important considerations here:
-+ To avoid deep nesting of if-statements, always return a functions value as early
++ To avoid deep nesting of if-statements, always return a function's value as early
 as possible. In certain routines, once you know the answer, you want to return it to the calling routine immediately. If the routine is defined in such a way that it doesn't require any cleanup, not returning immediately means that you have to write more code.
 + Minimize the number of returns in each routine. It's harder to understand a routine if, reading it at the bottom, you're unaware of the possibility that it *return*ed somewhere above.
 
@@ -396,7 +396,7 @@ function getSomething(val) {
 
 ## Arrow Functions
 
-Use arrow functions over anonymous function expressions. Typescript will take care for `this`.
+Use arrow functions over anonymous function expressions. Typescript will take care of `this`.
 
 *Right:*
 
@@ -423,7 +423,7 @@ req.on("end", function () {
 
 Use the [JSDoc][JSDOC] convention for comments. When writing a comment always think how understandable will be for somebody who is new to this code. Even if it may look simple to you think how a guy that just joined will understand it. Always comment in the following cases:
 + When there is some non-trivial logic.
-+ Some "external" knowledge is needed which is missing in the context - workaround for driver, module bug, special 'hack' because of a bug and so on;
++ Some "external" knowledge is needed which is missing in the context - workaround for a driver, module bug, special 'hack' because of a bug and so on;
 + When you are creating a new class
 + Public methods - include all the arguments and if possible the types {String}, {Number}. Optional arguments should be marked too. Check the [@param tag][param]
 
@@ -432,7 +432,7 @@ Use the [JSDoc][JSDOC] convention for comments. When writing a comment always th
 
 ## File/module structure
 
-Typical module should have the following structure:
+A typical module should have the following structure:
 
 1. required dependencies
 2. module-private declarations - variables, functions, classes, etc.
@@ -442,7 +442,7 @@ Typical module should have the following structure:
 For more information see [this file](https://github.com/telerik/xPlatCore/blob/master/JS/BCL/CreateNewModule.md)
 
 ## File naming
-Use lower case for file names. Use dash to separate different words.
+Use lower case for file names. Use a dash to separate different words.
 
 *Right:*
 file-system
@@ -451,7 +451,7 @@ file-system
 FileSystem, fileSystem, file_system
 
 ## This, that, self
-When you **need** to keep reference to **this** use **that** as the name of the variable. Additionally, if you use the TypeScript lambda support, the compiler will take care of this automatically.
+When you **need** to keep a reference to **this** use **that** as the name of the variable. Additionally, if you use the TypeScript lambda support, the compiler will take care of this automatically.
 
 *Right:*
 ```TypeScript
@@ -470,7 +470,7 @@ doSomething(function(){
 ```
 
 ## Private (hidden) variables and methods
-Although there is the **private** keyword in TypeScript, it is only a syntax sugar. There is no such notation in JavaScript and everything is available to the users. Hence, always use underscore (**_**) to prefix private variables and methods. There are also methods which have the **public** visibility but they are meant to be used within our code ONLY. Such methods should also be prefixed with underscore.
+Although there is the **private** keyword in TypeScript, it is only a syntax sugar. There is no such notation in JavaScript and everything is available to the users. Hence, always use underscore (**_**) to prefix private variables and methods. There are also methods which have the **public** visibility but they are meant to be used within our code ONLY. Such methods should also be prefixed with an underscore.
 
 *Right:*
 ```TypeScript

WritingUnitTests.md

@@ -1,7 +1,7 @@
 # Writing Unit Tests for NativeScript Core Modules
 
 Unit tests for NativeScript Modules are written and executed with a custom lightweight test-runner and assertion framework.
-The purpose of this document is to get you familiar with it, so that you can unit-test your contributions to the NativeScript framework.
+The purpose of this document is to get you familiar with it so that you can unit-test your contributions to the NativeScript framework.
 
 # Run Unit Tests Project
 
@@ -19,7 +19,7 @@ tns run ios
 # Test Modules
 
 All unit tests are organized into test modules(bundles).
-By default the test app will run all the tests from all registered test modules. This happens in [`runTests()`](/tests/app/app/mainPage.ts#L26-L28) method in the main page of the test-app. By modifying this method, you can configure the app to:
+By default, the test app will run all the tests from all registered test modules. This happens in [`runTests()`](/tests/app/app/mainPage.ts#L26-L28) method in the main page of the test-app. By modifying this method, you can configure the app to:
 
 * **Execute only the tests from a specific test module**:
 
@@ -50,8 +50,8 @@ The test modules are actually TypeScript modules which export unit tests and hoo
 
 * All exported functions with a `test` prefix are unit-tests.
 * The `setUpModule()` hook is called once - before all the tests in the module.
-* The `setUp()` hook is called before each tests.
+* The `setUp()` hook is called before each test.
-* The `tearDown()` hook called after each tests.
+* The `tearDown()` hook called after each test.
 * The `tearDownModule()` hook is called once - after all the tests in the module.
 
 # Asserting
@@ -85,4 +85,4 @@ export function test_getJSON(done) {
 
 # Misc
 
-When looking into the code of the existing tests, you might encounter strange comments looking like this `// >> animation-chaining`. These are markers for code snippets generated in the docs documetation. They are not related to testing so you don't need to add any of those in your tests.
+When looking into the code of the existing tests, you might encounter strange comments looking like this `// >> animation-chaining`. These are markers for code snippets generated in the docs documentation. They are not related to testing so you don't need to add any of those in your tests.

tests/app/ui/styling/style-tests.ts

@@ -674,6 +674,23 @@ export function test_CSS_isAppliedOnPage_From_addCssFile() {
     });
 }
 
+export function test_CSS_isAppliedOnPage_From_changeCssFile() {
+    const testButton = new buttonModule.Button();
+    testButton.text = "Test";
+
+    const testCss = "button { color: blue; }";
+
+    const testFunc = function (views: Array<viewModule.View>) {
+        helper.assertViewColor(testButton, "#0000FF");
+        const page: pageModule.Page = <pageModule.Page>views[1];
+        page.changeCssFile("~/ui/styling/test.css");
+        helper.assertViewBackgroundColor(page, "#FF0000");
+        TKUnit.assert(testButton.style.color === undefined, "Color should not have a value");
+    }
+
+    helper.buildUIAndRunTest(testButton, testFunc, { pageCss: testCss });
+}
+
 const invalidCSS = ".invalid { " +
     "color: invalidValue; " +
     "background-color: invalidValue; " +

tns-core-modules/application/application-common.ts

@@ -39,7 +39,7 @@ import {
     iOSApplication,
     LoadAppCSSEventData,
     UnhandledErrorEventData,
-    DiscardedErrorEventData
+    DiscardedErrorEventData,
 } from "./application";
 
 export { UnhandledErrorEventData, DiscardedErrorEventData, CssChangedEventData, LoadAppCSSEventData };
@@ -82,19 +82,23 @@ export function setApplication(instance: iOSApplication | AndroidApplication): v
 export function livesync(rootView: View, context?: ModuleContext) {
     events.notify(<EventData>{ eventName: "livesync", object: app });
     const liveSyncCore = global.__onLiveSyncCore;
-    let reapplyAppCss = false;
+    let reapplyAppStyles = false;
+    let reapplyLocalStyles = false;
 
-    if (context) {
+    if (context && context.path) {
-        const fullFileName = getCssFileName();
-        const fileName = fullFileName.substring(0, fullFileName.lastIndexOf(".") + 1);
         const extensions = ["css", "scss"];
-        reapplyAppCss = extensions.some(ext => context.path === fileName.concat(ext));
+        const appStylesFullFileName = getCssFileName();
+        const appStylesFileName = appStylesFullFileName.substring(0, appStylesFullFileName.lastIndexOf(".") + 1);
+        reapplyAppStyles = extensions.some(ext => context.path === appStylesFileName.concat(ext));
+        if (!reapplyAppStyles) {
+            reapplyLocalStyles = extensions.some(ext => context.path.endsWith(ext));
+        }
     }
 
-    if (reapplyAppCss && rootView) {
+    if (reapplyAppStyles && rootView) {
         rootView._onCssStateChange();
     } else if (liveSyncCore) {
-        liveSyncCore();
+        reapplyLocalStyles ? liveSyncCore(context) : liveSyncCore();
     }
 }
 

tns-core-modules/application/application.d.ts

@@ -3,7 +3,9 @@
  * @module "application"
  */ /** */
 
-///<reference path="../tns-core-modules.d.ts" /> Include global typings
+/// <reference path="../nativescript-error.d.ts" />
+/// <reference path="../tns-core-modules.d.ts" />
+
 import { NavigationEntry, View, Observable, EventData } from "../ui/frame";
 
 /**
@@ -607,4 +609,4 @@ export function hasLaunched(): boolean;
 
 export interface LoadAppCSSEventData extends EventData {
     cssFile: string;
-}
+}

tns-core-modules/application/application.ios.ts

@@ -225,9 +225,9 @@ class IOSApplication implements IOSApplicationDefinition {
         }
     }
 
-    public _onLivesync(): void {
+    public _onLivesync(context?: ModuleContext): void {
         // If view can't handle livesync set window controller.
-        if (this._rootView && !this._rootView._onLivesync()) {
+        if (this._rootView && !this._rootView._onLivesync(context)) {
             this.setWindowContent();
         }
     }
@@ -264,8 +264,8 @@ exports.ios = iosApp;
 setApplication(iosApp);
 
 // attach on global, so it can be overwritten in NativeScript Angular
-(<any>global).__onLiveSyncCore = function () {
+(<any>global).__onLiveSyncCore = function (context?: ModuleContext) {
-    iosApp._onLivesync();
+    iosApp._onLivesync(context);
 }
 
 let mainEntry: NavigationEntry;

tns-core-modules/debugger/webinspector-css.ios.ts

@@ -18,6 +18,10 @@ export class CSSDomainDebugger implements inspectorCommandTypes.CSSDomain.CSSDom
         this.commands = {};
 
         attachCSSInspectorCommandCallbacks(this.commands);
+
+        // By default start enabled because we can miss the "enable" event when
+        // running with `--debug-brk` -- the frontend will send it before we've been created
+        this.enable();
     }
 
     get enabled(): boolean {

tns-core-modules/debugger/webinspector-dom.ios.ts

@@ -20,6 +20,10 @@ export class DOMDomainDebugger implements inspectorCommandTypes.DOMDomain.DOMDom
 
         attachDOMInspectorEventCallbacks(this.events);
         attachDOMInspectorCommandCallbacks(this.commands);
+
+        // By default start enabled because we can miss the "enable event when
+        // running with `--debug-brk` -- the frontend will send it before we've been created
+        this.enable();
     }
 
     get enabled(): boolean {

tns-core-modules/debugger/webinspector-network.ios.ts

@@ -64,7 +64,7 @@ export class Request {
                 this._resourceType = "Other";
                 return;
             }
-            
+
             this._mimeType = value;
 
             var resourceType = "Other";
@@ -112,19 +112,19 @@ export class Request {
                 this._resourceType = value;
         }
     }
-    
+
     public responseReceived(response: inspectorCommandTypes.NetworkDomain.Response): void {
         if (this._networkDomainDebugger.enabled) {
             this._networkDomainDebugger.events.responseReceived(this.requestID, frameId, loaderId, __inspectorTimestamp(), <any>this.resourceType, response);
         }
     }
-    
+
     public loadingFinished(): void {
         if (this._networkDomainDebugger.enabled) {
             this._networkDomainDebugger.events.loadingFinished(this.requestID, __inspectorTimestamp());
         }
     }
-    
+
     public requestWillBeSent(request: inspectorCommandTypes.NetworkDomain.Request): void {
         if (this._networkDomainDebugger.enabled) {
             this._networkDomainDebugger.events.requestWillBeSent(this.requestID, frameId, loaderId, request.url, request, __inspectorTimestamp(), { type: "Script" });
@@ -136,9 +136,13 @@ export class Request {
 export class NetworkDomainDebugger implements inspectorCommandTypes.NetworkDomain.NetworkDomainDispatcher {
     private _enabled: boolean;
     public events: inspectorCommandTypes.NetworkDomain.NetworkFrontend;
-   
+
     constructor() {
         this.events = new inspectorCommands.NetworkDomain.NetworkFrontend();
+
+        // By default start enabled because we can miss the "enable" event when
+        // running with `--debug-brk` -- the frontend will send it before we've been created
+        this.enable();
     }
 
     get enabled(): boolean {
@@ -156,7 +160,7 @@ export class NetworkDomainDebugger implements inspectorCommandTypes.NetworkDomai
         }
         this._enabled = true;
     }
-    
+
     /**
      * Disables network tracking, prevents network events from being sent to the client.
      */
@@ -166,14 +170,14 @@ export class NetworkDomainDebugger implements inspectorCommandTypes.NetworkDomai
         }
         this._enabled = false;
     }
-    
+
     /**
      * Specifies whether to always send extra HTTP headers with the requests from this page.
      */
     setExtraHTTPHeaders(params: inspectorCommandTypes.NetworkDomain.SetExtraHTTPHeadersMethodArguments): void {
         //
     }
-    
+
     /**
      * Returns content served for the given request.
      */
@@ -187,9 +191,9 @@ export class NetworkDomainDebugger implements inspectorCommandTypes.NetworkDomai
                  body: body,
                  base64Encoded: !resource_data.hasTextContent
              };
-        } 
+        }
     }
-    
+
     /**
      * Tells whether clearing browser cache is supported.
      */
@@ -198,14 +202,14 @@ export class NetworkDomainDebugger implements inspectorCommandTypes.NetworkDomai
             result: false
         };
     }
-    
+
     /**
      * Clears browser cache.
      */
     clearBrowserCache(): void {
         //
     }
-    
+
     /**
      * Tells whether clearing browser cookies is supported.
      */
@@ -214,21 +218,21 @@ export class NetworkDomainDebugger implements inspectorCommandTypes.NetworkDomai
             result: false
         };
     }
-    
+
     /**
      * Clears browser cookies.
      */
     clearBrowserCookies(): void {
         //
     }
-    
+
     /**
      * Toggles ignoring cache for each request. If <code>true</code>, cache will not be used.
      */
     setCacheDisabled(params: inspectorCommandTypes.NetworkDomain.SetCacheDisabledMethodArguments): void {
         //
     }
-    
+
     /**
      * Loads a resource in the context of a frame on the inspected page without cross origin checks.
      */
@@ -245,7 +249,7 @@ export class NetworkDomainDebugger implements inspectorCommandTypes.NetworkDomai
             status: 200
         }
     }
-    
+
     public static idSequence: number = 0;
     create(): Request {
         let id = (++NetworkDomainDebugger.idSequence).toString();
@@ -264,4 +268,4 @@ export class RuntimeDomainDebugger {
     compileScript(): { scriptId?: string, exceptionDetails?: Object } {
         return {};
     }
-}
+}

tns-core-modules/module.d.ts

@@ -1,3 +1,4 @@
+/// <reference path="./nativescript-error.d.ts" />
 declare var global: NodeJS.Global;
 
 interface ModuleResolver {
@@ -52,7 +53,7 @@ declare namespace NodeJS {
         __inspector?: any;
         __extends: any;
         __onLiveSync: (context?: { type: string, path: string }) => void;
-        __onLiveSyncCore: () => void;
+        __onLiveSyncCore: (context?: { type: string, path: string }) => void;
         __onUncaughtError: (error: NativeScriptError) => void;
         __onDiscardedError: (error: NativeScriptError) => void;
         TNS_WEBPACK?: boolean;
@@ -86,16 +87,6 @@ interface ModuleContext {
     path: string;
 }
 
-/**
- * An extended JavaScript Error which will have the nativeError property initialized in case the error is caused by executing platform-specific code.
- */
-interface NativeScriptError extends Error {
-    /**
-     * Represents the native error object.
-     */
-    nativeError: any;
-}
-
 // Define a minimal subset of NodeRequire and NodeModule so user apps can compile without
 // installing @types/node
 

tns-core-modules/nativescript-error.d.ts

@@ -0,0 +1,9 @@
+/**
+ * An extended JavaScript Error which will have the nativeError property initialized in case the error is caused by executing platform-specific code.
+ */
+declare interface NativeScriptError extends Error {
+    /**
+     * Represents the native error object.
+     */
+    nativeError: any;
+}

tns-core-modules/package.json

@@ -1,7 +1,7 @@
 {
   "name": "tns-core-modules",
   "description": "Telerik NativeScript Core Modules",
-  "version": "5.2.2",
+  "version": "5.3.0",
   "homepage": "https://www.nativescript.org",
   "repository": {
     "type": "git",
@@ -26,7 +26,7 @@
   "license": "Apache-2.0",
   "typings": "tns-core-modules.d.ts",
   "dependencies": {
-    "tns-core-modules-widgets": "5.2.0",
+    "tns-core-modules-widgets": "next",
     "tslib": "^1.9.3"
   },
   "devDependencies": {

tns-core-modules/tns-core-modules.d.ts

@@ -22,12 +22,15 @@ declare var console: Console;
 declare var require: NodeRequire;
 
 // Extend NodeRequire with the webpack's require context extension.
+interface RequireContext {
+    keys(): string[];
+    (id: string): any;
+    <T>(id: string): T;
+    resolve(id: string): string;
+}
+
 interface NodeRequire {
-    context(root: string, recursive: boolean, filter: RegExp): {
+    context(path: string, deep?: boolean, filter?: RegExp): RequireContext;
-        (module: string): any;
-        id: number;
-        keys(): string[];
-    }
 }
 
 declare var __dirname: string;

tns-core-modules/ui/core/view/view-common.ts

@@ -105,6 +105,14 @@ export abstract class ViewCommon extends ViewBase implements ViewDefinition {
         this._updateStyleScope(cssFileName);
     }
 
+    public changeCssFile(cssFileName: string): void {
+        const scope = this._styleScope;
+        if (scope && cssFileName) {
+            scope.changeCssFile(cssFileName);
+            this._onCssStateChange();
+        }
+    }
+
     public _updateStyleScope(cssFileName?: string, cssString?: string, css?: string): void {
         let scope = this._styleScope;
         if (!scope) {

tns-core-modules/ui/core/view/view.d.ts

@@ -2,7 +2,8 @@
  * @module "ui/core/view"
  */ /** */
 
-///<reference path="../../../tns-core-modules.d.ts" /> Include global typings
+/// <reference path="../../../tns-core-modules.d.ts" />
+
 import { ViewBase, Property, InheritedProperty, EventData, Color } from "../view-base";
 import { Animation, AnimationDefinition, AnimationPromise } from "../../animation";
 import { HorizontalAlignment, VerticalAlignment, Visibility, Length, PercentLength } from "../../styling/style-properties";
@@ -18,14 +19,14 @@ export function PseudoClassHandler(...pseudoClasses: string[]): MethodDecorator;
 /**
  * Specifies the type name for the instances of this View class,
  * that is used when matching CSS type selectors.
- * 
+ *
  * Usage:
  * ```
  * @CSSType("Button")
  * class Button extends View {
  * }
  * ```
- * 
+ *
  * Internally the decorator set `Button.prototype.cssType = "Button"`.
  * @param type The type name, e. g. "Button", "Label", etc.
  */
@@ -50,8 +51,8 @@ export type px = number;
 export type percent = number;
 
 /**
- * The Point interface describes a two dimensional location. 
+ * The Point interface describes a two dimensional location.
- * It has two properties x and y, representing the x and y coordinate of the location. 
+ * It has two properties x and y, representing the x and y coordinate of the location.
  */
 export interface Point {
     /**
@@ -66,8 +67,8 @@ export interface Point {
 }
 
 /**
- * The Size interface describes abstract dimensions in two dimensional space. 
+ * The Size interface describes abstract dimensions in two dimensional space.
- * It has two properties width and height, representing the width and height values of the size. 
+ * It has two properties width and height, representing the width and height values of the size.
  */
 export interface Size {
     /**
@@ -99,8 +100,8 @@ export interface ShownModallyData extends EventData {
 }
 
 /**
- * This class is the base class for all UI components. 
+ * This class is the base class for all UI components.
- * A View occupies a rectangular area on the screen and is responsible for drawing and layouting of all UI components within. 
+ * A View occupies a rectangular area on the screen and is responsible for drawing and layouting of all UI components within.
  */
 export abstract class View extends ViewBase {
     /**
@@ -475,13 +476,13 @@ export abstract class View extends ViewBase {
      * [Deprecated. Please use the on() instead.] Adds a gesture observer.
      * @param type - Type of the gesture.
      * @param callback - A function that will be executed when gesture is received.
-     * @param thisArg - An optional parameter which will be used as `this` context for callback execution. 
+     * @param thisArg - An optional parameter which will be used as `this` context for callback execution.
      */
     observe(type: GestureTypes, callback: (args: GestureEventData) => void, thisArg?: any);
 
     /**
      * A basic method signature to hook an event listener (shortcut alias to the addEventListener method).
-     * @param eventNames - String corresponding to events (e.g. "propertyChange"). Optionally could be used more events separated by `,` (e.g. "propertyChange", "change") or you can use gesture types. 
+     * @param eventNames - String corresponding to events (e.g. "propertyChange"). Optionally could be used more events separated by `,` (e.g. "propertyChange", "change") or you can use gesture types.
      * @param callback - Callback function which will be executed when event is raised.
      * @param thisArg - An optional parameter which will be used as `this` context for callback execution.
      */
@@ -527,12 +528,12 @@ export abstract class View extends ViewBase {
     modal: View;
 
     /**
-     * Animates one or more properties of the view based on the supplied options. 
+     * Animates one or more properties of the view based on the supplied options.
      */
     public animate(options: AnimationDefinition): AnimationPromise;
 
     /**
-     * Creates an Animation object based on the supplied options. 
+     * Creates an Animation object based on the supplied options.
      */
     public createAnimation(options: AnimationDefinition): Animation;
 
@@ -562,7 +563,7 @@ export abstract class View extends ViewBase {
     public getActualSize(): Size;
 
     /**
-     * Derived classes can override this method to handle Android back button press. 
+     * Derived classes can override this method to handle Android back button press.
      */
     onBackPressed(): boolean;
 
@@ -575,7 +576,7 @@ export abstract class View extends ViewBase {
     /**
      * @private
      * Adds a new values to current css.
-     * @param cssString - A valid css which will be added to current css. 
+     * @param cssString - A valid css which will be added to current css.
      */
     addCss(cssString: string): void;
 
@@ -586,13 +587,20 @@ export abstract class View extends ViewBase {
      */
     addCssFile(cssFileName: string): void;
 
+    /**
+     * @private
+     * Changes the current css to the content of the file.
+     * @param cssFileName - A valid file name (from the application root) which contains a valid css.
+     */
+    changeCssFile(cssFileName: string): void;
+
     // Lifecycle events
     _getNativeViewsCount(): number;
 
     _eachLayoutView(callback: (View) => void): void;
-    
+
     /**
-     * Iterates over children of type View. 
+     * Iterates over children of type View.
      * @param callback Called for each child of type View. Iteration stops if this method returns falsy value.
      */
     public eachChildView(callback: (view: View) => boolean): void;
@@ -673,7 +681,7 @@ export abstract class View extends ViewBase {
     /**
      * @private
      */
-    _onLivesync(): boolean;
+    _onLivesync(context?: { type: string, path: string }): boolean;
     /**
      * @private
      */
@@ -681,9 +689,9 @@ export abstract class View extends ViewBase {
 
     /**
      * Updates styleScope or create new styleScope.
-     * @param cssFileName 
+     * @param cssFileName
-     * @param cssString 
+     * @param cssString
-     * @param css 
+     * @param css
      */
     _updateStyleScope(cssFileName?: string, cssString?: string, css?: string): void;
 
@@ -715,7 +723,7 @@ export abstract class View extends ViewBase {
 }
 
 /**
- * Base class for all UI components that are containers. 
+ * Base class for all UI components that are containers.
  */
 export class ContainerView extends View {
     /**
@@ -725,7 +733,7 @@ export class ContainerView extends View {
 }
 
 /**
- * Base class for all UI components that implement custom layouts. 
+ * Base class for all UI components that implement custom layouts.
  */
 export class CustomLayoutView extends ContainerView {
     //@private

tns-core-modules/ui/frame/frame-common.ts

@@ -76,7 +76,7 @@ export class FrameBase extends CustomLayoutView implements FrameDefinition {
                     if (backstackIndex !== -1) {
                         backstack = backstackIndex;
                     } else {
-                        // NOTE: We don't search for entries in navigationQueue because there is no way for 
+                        // NOTE: We don't search for entries in navigationQueue because there is no way for
                         // developer to get reference to BackstackEntry unless transition is completed.
                         // At that point the entry is put in the backstack array.
                         // If we start to return Backstack entry from navigate method then
@@ -153,7 +153,7 @@ export class FrameBase extends CustomLayoutView implements FrameDefinition {
     //     }
 
     //     let currentPage = this._currentEntry.resolvedPage;
-    //     let currentNavigationEntry = this._currentEntry.entry; 
+    //     let currentNavigationEntry = this._currentEntry.entry;
     //     if (currentPage["isBiOrientational"] && currentNavigationEntry.moduleName) {
     //         if (this.canGoBack()){
     //             this.goBack();
@@ -162,7 +162,7 @@ export class FrameBase extends CustomLayoutView implements FrameDefinition {
     //             currentNavigationEntry.backstackVisible = false;
     //         }
     //         // Re-navigate to the same page so the other (.port or .land) xml is loaded.
-    //         this.navigate(currentNavigationEntry);                   
+    //         this.navigate(currentNavigationEntry);
     //     }
     // }
 
@@ -224,7 +224,7 @@ export class FrameBase extends CustomLayoutView implements FrameDefinition {
         newPage.onNavigatedTo(isBack);
 
         // Reset executing entry after NavigatedTo is raised;
-        // we do not want to execute two navigations in parallel in case 
+        // we do not want to execute two navigations in parallel in case
         // additional navigation is triggered from the NavigatedTo handler.
         this._executingEntry = null;
     }
@@ -259,7 +259,7 @@ export class FrameBase extends CustomLayoutView implements FrameDefinition {
                 return true;
             }
         }
-    
+
         return false;
     }
 
@@ -563,7 +563,7 @@ export class FrameBase extends CustomLayoutView implements FrameDefinition {
         return result;
     }
 
-    public _onLivesync(): boolean {
+    public _onLivesync(context?: ModuleContext): boolean {
         super._onLivesync();
 
         if (!this._currentEntry || !this._currentEntry.entry) {
@@ -571,6 +571,17 @@ export class FrameBase extends CustomLayoutView implements FrameDefinition {
         }
 
         const currentEntry = this._currentEntry.entry;
+        if (context && context.path) {
+            // Use topmost instead of this to cover nested frames scenario
+            const topmostFrame = topmost();
+            const moduleName = topmostFrame.currentEntry.moduleName;
+            const reapplyStyles = context.path.includes(moduleName);
+            if (reapplyStyles && moduleName) {
+                topmostFrame.currentPage.changeCssFile(context.path);
+                return true;
+            }
+        }
+
         const newEntry: NavigationEntry = {
             animated: false,
             clearHistory: true,

tns-core-modules/ui/frame/frame.android.ts

@@ -82,13 +82,13 @@ function getAttachListener(): android.view.View.OnAttachStateChangeListener {
     return attachStateChangeListener;
 }
 
-export function reloadPage(): void {
+export function reloadPage(context?: ModuleContext): void {
     const activity = application.android.foregroundActivity;
     const callbacks: AndroidActivityCallbacks = activity[CALLBACKS];
     if (callbacks) {
         const rootView: View = callbacks.getRootView();
 
-        if (!rootView || !rootView._onLivesync()) {
+        if (!rootView || !rootView._onLivesync(context)) {
             callbacks.resetActivityContent(activity);
         }
     } else {
@@ -153,7 +153,7 @@ export class Frame extends FrameBase {
         // In case activity was destroyed because of back button pressed (e.g. app exit)
         // and application is restored from recent apps, current fragment isn't recreated.
         // In this case call _navigateCore in order to recreate the current fragment.
-        // Don't call navigate because it will fire navigation events. 
+        // Don't call navigate because it will fire navigation events.
         // As JS instances are alive it is already done for the current page.
         if (!this.isLoaded || this._executingEntry || !this._attachedToWindow) {
             return;
@@ -183,13 +183,13 @@ export class Frame extends FrameBase {
         const entry = this._currentEntry;
         if (entry && manager && !manager.findFragmentByTag(entry.fragmentTag)) {
             // Simulate first navigation (e.g. no animations or transitions)
-            // we need to cache the original animation settings so we can restore them later; otherwise as the 
+            // we need to cache the original animation settings so we can restore them later; otherwise as the
-            // simulated first navigation is not animated (it is actually a zero duration animator) the "popExit" animation 
+            // simulated first navigation is not animated (it is actually a zero duration animator) the "popExit" animation
             // is broken when transaction.setCustomAnimations(...) is used in a scenario with:
             // 1) forward navigation
             // 2) suspend / resume app
-            // 3) back navigation -- the exiting fragment is erroneously animated with the exit animator from the 
+            // 3) back navigation -- the exiting fragment is erroneously animated with the exit animator from the
-            // simulated navigation (NoTransition, zero duration animator) and thus the fragment immediately disappears; 
+            // simulated navigation (NoTransition, zero duration animator) and thus the fragment immediately disappears;
             // the user only sees the animation of the entering fragment as per its specific enter animation settings.
             // NOTE: we are restoring the animation settings in Frame.setCurrent(...) as navigation completes asynchronously
             this._cachedAnimatorState = getAnimatorState(this._currentEntry);
@@ -727,7 +727,7 @@ function ensureFragmentClass() {
         return;
     }
 
-    // this require will apply the FragmentClass implementation 
+    // this require will apply the FragmentClass implementation
     require("ui/frame/fragment");
 
     if (!fragmentClass) {
@@ -855,11 +855,11 @@ class FragmentCallbacksImplementation implements AndroidFragmentCallbacks {
             entry.viewSavedState = null;
         }
 
-        // fixes 'java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first'.	
+        // fixes 'java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first'.
         // on app resume in nested frame scenarios with support library version greater than 26.0.0
-        // HACK: this whole code block shouldn't be necessary as the native view is supposedly removed from its parent 
+        // HACK: this whole code block shouldn't be necessary as the native view is supposedly removed from its parent
-        // right after onDestroyView(...) is called but for some reason the fragment view (page) still thinks it has a 
+        // right after onDestroyView(...) is called but for some reason the fragment view (page) still thinks it has a
-        // parent while its supposed parent believes it properly removed its children; in order to "force" the child to 
+        // parent while its supposed parent believes it properly removed its children; in order to "force" the child to
         // lose its parent we temporarily add it to the parent, and then remove it (addViewInLayout doesn't trigger layout pass)
         const nativeView = page.nativeViewProtected;
         if (nativeView != null) {
@@ -908,8 +908,8 @@ class FragmentCallbacksImplementation implements AndroidFragmentCallbacks {
         }
 
         // [nested frames / fragments] see https://github.com/NativeScript/NativeScript/issues/6629
-        // retaining reference to a destroyed fragment here somehow causes a cryptic 
+        // retaining reference to a destroyed fragment here somehow causes a cryptic
-        // "IllegalStateException: Failure saving state: active fragment has cleared index: -1" 
+        // "IllegalStateException: Failure saving state: active fragment has cleared index: -1"
         // in a specific mixed parent / nested frame navigation scenario
         entry.fragment = null;
 
@@ -1019,15 +1019,15 @@ class ActivityCallbacksImplementation implements AndroidActivityCallbacks {
         }
 
         // NOTE: activity.onPostResume() is called when activity resume is complete and we can
-        // safely raise the application resume event; 
+        // safely raise the application resume event;
         // onActivityResumed(...) lifecycle callback registered in application is called too early
-        // and raising the application resume event there causes issues like 
+        // and raising the application resume event there causes issues like
         // https://github.com/NativeScript/NativeScript/issues/6708
         if ((<any>activity).isNativeScriptActivity) {
             const args = <application.ApplicationEventData>{
                 eventName: application.resumeEvent,
-                object: application.android, 
+                object: application.android,
-                android: activity 
+                android: activity
             };
             application.notify(args);
             application.android.paused = false;
@@ -1151,7 +1151,7 @@ class ActivityCallbacksImplementation implements AndroidActivityCallbacks {
 
     // Paths that go trough this method:
     // 1. Application initial start - there is no rootView in callbacks.
-    // 2. Application revived after Activity is destroyed. this._rootView should have been restored by id in onCreate. 
+    // 2. Application revived after Activity is destroyed. this._rootView should have been restored by id in onCreate.
     // 3. Livesync if rootView has no custom _onLivesync. this._rootView should have been cleared upfront. Launch event should not fired
     // 4. _resetRootView method. this._rootView should have been cleared upfront. Launch event should not fired
     private setActivityContent(

tns-core-modules/ui/page/page.d.ts

@@ -3,7 +3,8 @@
  * @module "ui/page"
  */ /** */
 
-///<reference path="../../tns-core-modules.d.ts" /> Include global typings
+/// <reference path="../../tns-core-modules.d.ts" />
+
 import { ShownModallyData } from "../core/view";
 import { ContentView, EventData, Property, Color, CssProperty, Style } from "../content-view";
 import { Frame } from "../frame";
@@ -106,7 +107,7 @@ export class Page extends ContentView {
 
     /**
      * A basic method signature to hook an event listener (shortcut alias to the addEventListener method).
-     * @param eventNames - String corresponding to events (e.g. "propertyChange"). Optionally could be used more events separated by `,` (e.g. "propertyChange", "change"). 
+     * @param eventNames - String corresponding to events (e.g. "propertyChange"). Optionally could be used more events separated by `,` (e.g. "propertyChange", "change").
      * @param callback - Callback function which will be executed when event is raised.
      * @param thisArg - An optional parameter which will be used as `this` context for callback execution.
      */
@@ -198,4 +199,4 @@ export const statusBarStyleProperty: CssProperty<Style, "light" | "dark">;
 /**
  * Property backing androidStatusBarBackground.
  */
-export const androidStatusBarBackgroundProperty: CssProperty<Style, Color>;
+export const androidStatusBarBackgroundProperty: CssProperty<Style, Color>;

tns-core-modules/ui/styling/style-scope.d.ts

@@ -29,6 +29,7 @@ export class CssState {
 export class StyleScope {
     public css: string;
     public addCss(cssString: string, cssFileName: string): void;
+    public changeCssFile(cssFileName: string): void;
 
     public static createSelectorsFromCss(css: string, cssFileName: string, keyframes: Object): RuleSet[];
     public static createSelectorsFromImports(tree: SyntaxTree, keyframes: Object): RuleSet[];

tns-core-modules/ui/styling/style-scope.ts

@@ -569,6 +569,19 @@ export class StyleScope {
         this.appendCss(null, cssFileName);
     }
 
+    @profile
+    private changeCssFile(cssFileName: string): void {
+        if (!cssFileName) {
+            return;
+        }
+
+        const cssSelectors = CSSSource.fromURI(cssFileName, this._keyframes);
+        this._css = cssSelectors.source;
+        this._localCssSelectors = cssSelectors.selectors;
+        this._localCssSelectorVersion++;
+        this.ensureSelectors();
+    }
+
     @profile
     private setCss(cssString: string, cssFileName?): void {
         this._css = cssString;

tns-core-modules/ui/tab-view/tab-view.android.ts

@@ -643,11 +643,13 @@ export class TabView extends TabViewBase {
     }
 
     [selectedIndexProperty.setNative](value: number) {
+        const smoothScroll = this.androidTabsPosition === "top";
+
         if (traceEnabled()) {
-            traceWrite("TabView this._viewPager.setCurrentItem(" + value + ", true);", traceCategory);
+            traceWrite("TabView this._viewPager.setCurrentItem(" + value + ", " + smoothScroll + ");", traceCategory);
         }
 
-        this._viewPager.setCurrentItem(value, true);
+        this._viewPager.setCurrentItem(value, smoothScroll);
     }
 
     [itemsProperty.getDefault](): TabViewItem[] {

tns-core-modules/ui/web-view/web-view.ios.ts

@@ -131,7 +131,8 @@ export class WebView extends WebViewBase {
 
     public _loadUrl(src: string) {
         if (src.startsWith("file:///")) {
-            this.ios.loadFileURLAllowingReadAccessToURL(NSURL.URLWithString(src), NSURL.URLWithString(src));
+            var cachePath = src.substring(0, src.lastIndexOf("/"));
+            this.ios.loadFileURLAllowingReadAccessToURL(NSURL.URLWithString(src), NSURL.URLWithString(cachePath));
         } else {
             this.ios.loadRequest(NSURLRequest.requestWithURL(NSURL.URLWithString(src)));
         }
@@ -160,4 +161,4 @@ export class WebView extends WebViewBase {
     public reload() {
         this.ios.reload();
     }
-} 
+} 

tns-platform-declarations/package.json

@@ -1,6 +1,6 @@
 {
   "name": "tns-platform-declarations",
-  "version": "5.2.2",
+  "version": "5.3.0",
   "description": "Platform-specific TypeScript declarations for NativeScript for accessing native objects",
   "main": "",
   "scripts": {