Initial prototype of Frame + Page + Navigation.

BCL.csproj

@@ -153,14 +153,18 @@
       <DependentUpon>text.d.ts</DependentUpon>
     </TypeScriptCompile>
     <TypeScriptCompile Include="ui\core\bindable.ts" />
-    <TypeScriptCompile Include="ui\core\index.ts" />
     <TypeScriptCompile Include="ui\core\proxy.ts" />
-    <TypeScriptCompile Include="ui\core\view.android.ts">
-      <DependentUpon>view.d.ts</DependentUpon>
+    <TypeScriptCompile Include="ui\frame\frame-common.ts">
+      <DependentUpon>frame.d.ts</DependentUpon>
     </TypeScriptCompile>
-    <TypeScriptCompile Include="ui\core\view.ios.ts">
-      <DependentUpon>view.d.ts</DependentUpon>
+    <TypeScriptCompile Include="ui\frame\frame.android.ts">
+      <DependentUpon>frame.d.ts</DependentUpon>
     </TypeScriptCompile>
+    <TypeScriptCompile Include="ui\frame\frame.d.ts" />
+    <TypeScriptCompile Include="ui\frame\frame.ios.ts">
+      <DependentUpon>frame.d.ts</DependentUpon>
+    </TypeScriptCompile>
+    <TypeScriptCompile Include="ui\frame\index.ts" />
     <TypeScriptCompile Include="ui\image\image.android.ts">
       <DependentUpon>image.d.ts</DependentUpon>
     </TypeScriptCompile>
@@ -177,14 +181,22 @@
     <TypeScriptCompile Include="ui\label\label.ios.ts">
       <DependentUpon>label.d.ts</DependentUpon>
     </TypeScriptCompile>
-    <TypeScriptCompile Include="ui\text-input\index.ts" />
-    <TypeScriptCompile Include="ui\text-input\text-input.android.ts">
-      <DependentUpon>text-input.d.ts</DependentUpon>
+    <TypeScriptCompile Include="ui\pages\index.ts" />
+    <TypeScriptCompile Include="ui\pages\page-common.ts">
+      <DependentUpon>page.d.ts</DependentUpon>
     </TypeScriptCompile>
-    <TypeScriptCompile Include="ui\text-input\text-input.ios.ts">
-      <DependentUpon>text-input.d.ts</DependentUpon>
+    <TypeScriptCompile Include="ui\pages\page.android.ts">
+      <DependentUpon>page.d.ts</DependentUpon>
+    </TypeScriptCompile>
+    <TypeScriptCompile Include="ui\pages\page.d.ts" />
+    <TypeScriptCompile Include="ui\text-field\index.ts" />
+    <TypeScriptCompile Include="ui\text-field\text-field.android.ts">
+      <DependentUpon>text-field.d.ts</DependentUpon>
+    </TypeScriptCompile>
+    <TypeScriptCompile Include="ui\text-field\text-field.d.ts" />
+    <TypeScriptCompile Include="ui\text-field\text-field.ios.ts">
+      <DependentUpon>text-field.d.ts</DependentUpon>
     </TypeScriptCompile>
-    <TypeScriptCompile Include="ui\text-input\text-input.d.ts" />
     <TypeScriptCompile Include="utils\module-merge.ts" />
     <TypeScriptCompile Include="utils\utils_android.ts" />
     <TypeScriptCompile Include="utils\utils_ios.ts" />
@@ -247,7 +259,7 @@
     <TypeScriptCompile Include="libjs.d.ts" />
   </ItemGroup>
   <ItemGroup>
-    <TypeScriptCompile Include="ui\core\view.d.ts" />
+    <TypeScriptCompile Include="ui\core\view.ts" />
     <TypeScriptCompile Include="ui\core\observable.ts" />
     <TypeScriptCompile Include="ui\dialogs\dialogs.android.ts">
       <DependentUpon>dialogs.d.ts</DependentUpon>

application/application.android.ts

@@ -1,5 +1,6 @@
 import appModule = require("application/application-common");
 import dts = require("application");
+import frame = require("ui/frame");
 
 // merge the exports of the application_common file with the exports of this file
 declare var exports;
@@ -112,7 +113,7 @@ class AndroidApplication implements dts.AndroidApplication {
     public foregroundActivity: android.app.Activity;
     public startActivity: android.app.Activity;
     public packageName: string;
-    public getActivity: (intent: android.content.Intent) => any;
+    // public getActivity: (intent: android.content.Intent) => any;
 
     public onActivityCreated: (activity: android.app.Activity, bundle: android.os.Bundle) => void;
     public onActivityDestroyed: (activity: android.app.Activity) => void;
@@ -128,7 +129,15 @@ class AndroidApplication implements dts.AndroidApplication {
         this.nativeApp = nativeApp;
         this.packageName = nativeApp.getPackageName();
         this.context = nativeApp.getApplicationContext();
-        this.getActivity = undefined;
+    }
+
+    public getActivity(intent: android.content.Intent): any {
+        var currentPage = rootFrame.currentPage;
+        if (!currentPage) {
+            throw new Error("Root frame not navigated to a page.");
+        }
+
+        return currentPage.android.getActivityExtends();
     }
 
     public init() {
@@ -136,4 +145,7 @@ class AndroidApplication implements dts.AndroidApplication {
         this.nativeApp.registerActivityLifecycleCallbacks(this._eventsToken);
         this.context = this.nativeApp.getApplicationContext();
     }
-}
+}
+
+// The root frame of the application
+export var rootFrame = new frame.Frame();

application/application.d.ts

@@ -1,11 +1,13 @@
 
 declare module "application" {
+    import frame = require("ui/frame");
+
+    export var rootFrame: frame.Frame;
 
     /**
-    * The main entry point event. This method is expected to return an instance of the root UI for the application.
-    * This will be an Activity extends for Android and a RootViewController for iOS.
+    * The main entry point event. This method is expected to use the root frame to navigate to the main application page.
     */
-    export function onLaunch(): any;
+    export function onLaunch(): void;
 
     /**
     * This method will be called when the Application is suspended.
@@ -85,7 +87,7 @@ declare module "application" {
         * This method is called by the JavaScript Bridge when navigation to a new activity is triggered.
         * The return value of this method should be com.tns.NativeScriptActivity.extends implementation.
         */
-        getActivity: (intent: android.content.Intent) => any;
+        getActivity(intent: android.content.Intent): any;
 
         /**
         * Direct handler of the android.app.Application.ActivityLifecycleCallbacks.onActivityCreated method.

declarations.android.d.ts

@@ -338,6 +338,7 @@ declare module android {
 }
 */
 
+
 declare var app;
 declare var telerik;
 declare var gc: () => any;

ui/core/bindable.ts

@@ -37,6 +37,11 @@ export class Bindable extends observable.Observable {
         }
     }
 
+    public setPropertyCore(data: observable.PropertyChangeData) {
+        super.setPropertyCore(data);
+        this.updateTwoWayBinding(data.propertyName, data.value);
+    }
+
     public getBinding(propertyName: string) {
         return this._bindings[propertyName];
     }

ui/core/index.ts

@@ -1 +0,0 @@
-

ui/core/observable.ts

@@ -31,6 +31,13 @@ export class Observable {
     private _trackChanging = false;
 
     constructor(body?: any) {
+    	if (body) {
+            for (var key in body) {
+                // TODO: Is this correct
+                this[key] = body[key];
+            }
+        }
+        
         this.on = this.addEventListener = this.addObserver;
         this.off = this.removeEventListener = this.removeObserver;
     }

ui/core/proxy.ts

@@ -4,6 +4,7 @@ import bindable = require("ui/core/bindable");
 export class ProxyObject extends bindable.Bindable {
     public setPropertyCore(data: observable.PropertyChangeData) {
         this.setNativeProperty(data);
+        this.updateTwoWayBinding(data.propertyName, data.value);
     }
 
     public setNativeProperty(data: observable.PropertyChangeData) {

ui/core/view.android.ts

@@ -1,11 +0,0 @@
-import proxy = require("ui/core/proxy");
-
-export class View extends proxy.ProxyObject {
-    public addToParent(parent: android.view.ViewGroup) {
-        var nativeInstance: android.view.View = this["android"];
-        if (nativeInstance) {
-            // TODO: Check for existing parent
-            parent.addView(nativeInstance);
-        }
-    }
-}

ui/core/view.d.ts

@@ -1,7 +0,0 @@
-import proxy = require("ui/core/proxy");
-
-export declare class View extends proxy.ProxyObject {
-    public addToParent(parent: any);
-    android: any;
-    ios: any;
-}

ui/core/view.ios.ts

@@ -1,11 +0,0 @@
-import proxy = require("ui/core/proxy");
-
-export class View extends proxy.ProxyObject {
-    public addToParent(parent: UIKit.UIView) {
-        var nativeInstance: UIKit.UIView = this["ios"];
-        if (nativeInstance) {
-            // TODO: Check for existing parent
-            parent.addSubview(nativeInstance);
-        }
-    }
-} 

ui/core/view.ts

@@ -0,0 +1,99 @@
+import proxy = require("ui/core/proxy");
+import application = require("application");
+
+export class View extends proxy.ProxyObject {
+    private _parent: Panel;
+
+    public onInitialized(content: android.content.Context) {
+        // TODO: This is used by Android, rethink this routine
+    }
+    
+    public addToParent(native: any) {
+        // TODO: Temporary
+        if (application.ios && this.ios) {
+            native.addSubview(this.ios);
+        } else if (application.android && this.android) {
+            native.addView(this.android);
+        }
+    }
+
+    /**
+    * Gets the Panel instance that parents this view. This property is read-only.
+    */
+    get parent(): Panel {
+        return this._parent;
+    }
+
+    /**
+    * Gets the android-specific native instance that lies behind this view. Will be available if running on an Android platform.
+    */
+    get android(): any {
+        return undefined;
+    }
+
+    /**
+    * Gets the ios-specific native instance that lies behind this view. Will be available if running on an Android platform.
+    */
+    get ios(): any {
+        return undefined;
+    }
+
+    // TODO: Should these be public?
+    public onAddedToParent(parent: Panel) {
+        this._parent = parent;
+        // TODO: Attach to parent - e.g. update data context, bindings, styling, etc.
+    }
+
+    public onRemovedFromParent() {
+        this._parent = null;
+        // TODO: Detach from parent.
+    }
+}
+
+/**
+* The Panel class represents an extended View which can have other views as children.
+*/
+export class Panel extends View {
+    private _children: Array<View>;
+
+    constructor() {
+        super();
+
+        this._children = new Array<View>();
+    }
+
+    public addChild(child: View) {
+        // Validate child is not parented
+        if (child.parent) {
+            var message;
+            if (child.parent === this) {
+                message = "View already added to this panel.";
+            } else {
+                message = "View is already a child of another panel.";
+            }
+
+            throw new Error(message);
+        }
+
+        this._children.push(child);
+        child.onAddedToParent(this);
+    }
+
+    public removeChild(child: View) {
+        if (!child) {
+            return;
+        }
+
+        if (child.parent !== this) {
+            throw new Error("View is not parented by this panel.");
+        }
+
+        var index = this._children.indexOf(child);
+        if (index < 0) {
+            throw new Error("View not found in children collection.");
+        }
+
+        this._children.splice(index, 1);
+        child.onRemovedFromParent();
+    }
+}

ui/frame/frame-common.ts

@@ -0,0 +1,114 @@
+import frame = require("ui/frame");
+import view = require("ui/core/view");
+import pages = require("ui/pages");
+
+enum NavigationType {
+    New,
+    Back,
+    Forward
+}
+
+export class Frame extends view.View implements frame.Frame {
+    private _backStack: Array<frame.PageNavigationEntry>;
+    private _forwardStack: Array<frame.PageNavigationEntry>;
+    private _currentEntry: frame.PageNavigationEntry;
+    private _currentPage: pages.Page;
+    private _navigationType: NavigationType;
+
+    // TODO: Currently our navigation will not be synchronized in case users directly call native navigation methods like Activity.startActivity.
+
+    constructor() {
+        super();
+
+        this._backStack = new Array<frame.PageNavigationEntry>();
+        this._forwardStack = new Array<frame.PageNavigationEntry>();
+        this._navigationType = NavigationType.New;
+    }
+
+    public canGoBack(): boolean {
+        return this._backStack.length > 0;
+    }
+
+    public canGoForward(): boolean {
+        return this._forwardStack.length > 0;
+    }
+
+    public goBack() {
+        if (!this.canGoBack()) {
+            // TODO: Do we need to throw an error?
+            return;
+        }
+
+        var entry = this._backStack.pop();
+        this._navigationType = NavigationType.Back;
+        this.navigate(entry);
+    }
+
+    public goForward() {
+        if (!this.canGoForward()) {
+            // TODO: Do we need to throw an error?
+            return;
+        }
+
+        var entry = this._forwardStack.pop();
+        this._navigationType = NavigationType.Forward;
+        this.navigate(entry);
+    }
+
+    public navigate(entry: frame.PageNavigationEntry) {
+        if (this._currentPage) {
+            this._backStack.push(this._currentEntry);
+        }
+
+        // perform the actual navigation, depending on the requested navigation type
+        switch (this._navigationType) {
+            case NavigationType.New:
+                this.navigateCore(entry.context);
+                break;
+            case NavigationType.Back:
+                this.goBackCore();
+                if (this._currentPage) {
+                    this._forwardStack.push(this._currentEntry);
+                }
+                break;
+            case NavigationType.Forward:
+                this.goForwardCore();
+                if (this._currentPage) {
+                    this._backStack.push(this._currentEntry);
+                }
+                break;
+        }
+
+        // TODO: We assume here that there is a Page object in the exports of the required module. This should be well documented.
+        this._currentPage = require(entry.pageModuleName).Page;
+        this._currentPage.frame = this;
+        this._currentEntry = entry;
+
+        // notify the page
+        this._currentPage.onNavigatedTo(entry.context);
+
+        // reset the navigation type back to new
+        this._navigationType = NavigationType.New;
+    }
+
+    public goBackCore() {
+    }
+
+    public goForwardCore() {
+    }
+
+    public navigateCore(context: any) {
+    }
+
+    get backStack(): Array<frame.PageNavigationEntry> {
+        return this._backStack;
+    }
+
+    get forwardStack(): Array<frame.PageNavigationEntry> {
+        return this._forwardStack;
+    }
+
+    get currentPage(): pages.Page {
+        return this._currentPage;
+    }
+}

ui/frame/frame.android.ts

@@ -0,0 +1,35 @@
+import frameCommon = require("ui/frame/frame-common");
+import frame = require("ui/frame");
+import pages = require("ui/pages");
+import application = require("application");
+
+export class Frame extends frameCommon.Frame {
+    public navigateCore(context: any) {
+        if (this.backStack.length === 0) {
+            // When navigating for the very first time we do not want to start an activity
+            // TODO: Revisit/polish this behavior
+            return;
+        }
+
+        var activity = this.currentPage.android.activity;
+        if (!activity) {
+            throw new Error("Current page does have an activity created.");
+        }
+
+        var intent = new android.content.Intent(activity, (<any>com).tns.NativeScriptActivity.class);
+        activity.startActivity(intent);
+    }
+
+    public goBackCore() {
+        var activity = this.currentPage.android.activity;
+        if (!activity) {
+            throw new Error("Current page does have an activity created.");
+        }
+
+        // TODO: This is not true in all cases, update once added support for parent activity in Android manifest
+        activity.finish();
+    }
+
+    public goForwardCore() {
+    }
+} 

ui/frame/frame.d.ts

@@ -0,0 +1,24 @@
+declare module "ui/frame" {
+    import view = require("ui/core/view");
+
+    // There is a cyclic reference here (pages module requires frame) but it is intented and needed.
+    import pages = require("ui/pages");
+
+    export class Frame extends view.View {
+        goBack();
+        canGoBack(): boolean;
+        goForward();
+        canGoForward(): boolean;
+        navigate(entry: PageNavigationEntry);
+
+        currentPage: pages.Page;
+
+        backStack: Array<PageNavigationEntry>;
+        forwardStack: Array<PageNavigationEntry>;
+    }
+
+    export interface PageNavigationEntry {
+        pageModuleName: string;
+        context?: any;
+    }
+} 

ui/frame/index.ts

@@ -0,0 +1,2 @@
+declare var module, require;
+module.exports = require("ui/frame/frame");  

ui/label/label.android.ts

@@ -2,36 +2,23 @@
 import view = require("ui/core/view");
 import application = require("application");
 
+var TEXT = "text";
+
+// this is the name of the property to store text locally until attached to a valid Context
+var TEXTPRIVATE = "_text";
+
 export class Label extends view.View {
-    private static textProperty = "text";
     private _android: android.widget.TextView;
 
     constructor() {
         super();
+    }
 
-        // TODO: Verify that this is always true
-        var context = application.android.currentContext;
-        if (!context) {
-            // TODO: Delayed loading?
+    public onInitialized(context: android.content.Context) {
+        if (!this._android) {
+            // TODO: We need to decide whether we will support context switching and if yes - to implement it.
+            this.createUI(context);
         }
-
-        this._android = new android.widget.TextView(context);
-
-        var that = this;
-        var textWatcher = new android.text.TextWatcher({
-            beforeTextChanged: function (text: string, start: number, count: number, after: number) {
-            },
-            onTextChanged: function (text: string, start: number, before: number, count: number) {
-            },
-            afterTextChanged: function (editable: android.text.IEditable) {
-                //if (that.hasObservers(observable.Observable.propertyChangeEvent)) {
-                //    var data = that.createPropertyChangeData(TextView.textProperty, that.text);
-                //    that.notify(data);
-                //}
-                that.updateTwoWayBinding("text", editable.toString());
-            }
-        });
-        this._android.addTextChangedListener(textWatcher);
     }
 
     get android(): android.widget.TextView {
@@ -39,17 +26,45 @@ export class Label extends view.View {
     }
 
     get text(): string {
+        if (!this._android) {
+            return this[TEXTPRIVATE];
+        }
         return this._android.getText().toString();
     }
     set text(value: string) {
-        this.setProperty(Label.textProperty, value);
+        this.setProperty(TEXT, value);
     }
 
     public setNativeProperty(data: observable.PropertyChangeData) {
         // TODO: Will this be a gigantic if-else switch?
-        if (data.propertyName === Label.textProperty) {
-            this._android.setText(data.value);
+        if (data.propertyName === TEXT) {
+            if (this._android) {
+                this._android.setText(data.value);
+            } else {
+                this[TEXTPRIVATE] = data.value;
+            }
         } else if (true) {
         }
     }
+
+    private createUI(context: android.content.Context) {
+        this._android = new android.widget.TextView(context);
+        if (this[TEXTPRIVATE]) {
+            this._android.setText(this[TEXTPRIVATE]);
+            delete this[TEXTPRIVATE];
+        }
+
+        // TODO: Do we need to listen for text change here?
+        //var that = this;
+        //var textWatcher = new android.text.TextWatcher({
+        //    beforeTextChanged: function (text: string, start: number, count: number, after: number) {
+        //    },
+        //    onTextChanged: function (text: string, start: number, before: number, count: number) {
+        //    },
+        //    afterTextChanged: function (editable: android.text.IEditable) {
+        //        that.updateTwoWayBinding("text", editable.toString());
+        //    }
+        //});
+        //this._android.addTextChangedListener(textWatcher);
+    }
 } 

ui/pages/index.ts

@@ -0,0 +1,2 @@
+declare var module, require;
+module.exports = require("ui/pages/page");  

ui/pages/page-common.ts

@@ -0,0 +1,36 @@
+import view = require("ui/core/view");
+import dts = require("ui/pages");
+import frame = require("ui/frame");
+import application = require("application");
+
+export class Page extends view.View implements dts.Page {
+    private _contentView: view.View;
+    private _frame: frame.Frame;
+    private _navigationContext: any;
+
+    public onLoaded: () => any;
+
+    get contentView(): view.View {
+        return this._contentView;
+    }
+    set contentView(value: view.View) {
+        this._contentView = value;
+
+        // TODO: Check if page is already loaded and update as needed
+    }
+
+    get frame(): frame.Frame {
+        return this._frame;
+    }
+    set frame(value: frame.Frame) {
+        // TODO: This method is called internally, check how to hide the setter from users.
+        this._frame = value;
+    }
+
+    public onNavigatedTo(context: any) {
+        this._navigationContext = context;
+    }
+
+    public onNavigatedFrom() {
+    }
+} 

ui/pages/page.android.ts

@@ -0,0 +1,81 @@
+import definition = require("ui/pages");
+import pageCommon = require("ui/pages/page-common");
+
+export class Page extends pageCommon.Page {
+    private _android: AndroidPage;
+
+    constructor() {
+        super();
+
+        this._android = new AndroidPage(this);
+    }
+
+    get android(): definition.AndroidPage {
+        return this._android;
+    }
+}
+
+class AndroidPage implements definition.AndroidPage {
+    private _ownerPage: definition.Page;
+    private _body: any;
+    private _activityExtends: any;
+    private _activity: android.app.Activity;
+
+    constructor(ownerPage: definition.Page) {
+        this._ownerPage = ownerPage;
+    }
+
+    get activity(): android.app.Activity {
+        return this._activity;
+    }
+
+    get activityBody(): any {
+        return this._body;
+    }
+    set activityBody(value: any) {
+        if (this._activityExtends) {
+            throw new Error("Activity already loaded and its body may not be changed.");
+        }
+
+        this._body = value;
+    }
+
+    public getActivityExtends(): any {
+        if (!this._body) {
+            this.rebuildBody();
+        }
+
+        return this._activityExtends;
+    }
+
+    public resetBody() {
+        this._body = null;
+        this._activityExtends = null;
+    }
+
+    private rebuildBody() {
+        var that = this;
+        this._body = {
+            onCreate: function () {
+                that._activity = this;
+                this.super.onCreate(null);
+
+                var view = that._ownerPage.contentView;
+                if (view) {
+                    // TODO: Notify the entire visual tree for being initialized
+                    view.onInitialized(that._activity);
+                    that._activity.setContentView(view.android);
+                }
+            }
+        }
+
+        if (this._ownerPage.onLoaded) {
+            this._body.onStart = function () {
+                this.super.onStart();
+                that._ownerPage.onLoaded();
+            }
+        }
+
+        this._activityExtends = (<any>com).tns.NativeScriptActivity.extends(this._body);
+    }
+}

ui/pages/page.d.ts

@@ -0,0 +1,25 @@
+declare module "ui/pages" {
+    import view = require("ui/core/view");
+    import frame = require("ui/frame");
+
+    export class Page extends view.View {
+        contentView: view.View;
+        android: AndroidPage;
+
+        /**
+        * Gets the Frame object controlling this instance.
+        */
+        frame: frame.Frame;
+
+        onNavigatedTo(context: any): void;
+        onNavigatedFrom(): void;
+
+        onLoaded: () => void;
+    }
+
+    export interface AndroidPage {
+        activity: android.app.Activity;
+        activityBody: any;
+        getActivityExtends(): any;
+    }
+} 

ui/text-field/text-field.android.ts

@@ -20,11 +20,7 @@ export class TextInput extends view.View {
             onTextChanged: function (text: string, start: number, before: number, count: number) {
             },
             afterTextChanged: function (editable: android.text.IEditable) {
-                //if (that.hasObservers(observable.Observable.propertyChangeEvent)) {
-                //    var data = that.createPropertyChangeData(TextView.textProperty, that.text);
-                //    that.notify(data);
-                //}
-                that.updateTwoWayBinding("text", editable.toString());
+                that.updateTwoWayBinding(TextInput.textProperty, editable.toString());
             }
         });
         this._android.addTextChangedListener(textWatcher);

ui/text-field/text-field.ios.ts

@@ -0,0 +1 @@
+