Merge pull request #846 from NativeScript/placeholder-event-fix

placeholder creatingView event fixed + tests

CrossPlatformModules.csproj

@@ -80,6 +80,7 @@
       <DependentUpon>data-binding.xml</DependentUpon>
     </TypeScriptCompile>
     <TypeScriptCompile Include="apps\tests\ui\action-bar\ActionBar_NumberAsText.ts" />
+    <TypeScriptCompile Include="apps\tests\ui\placeholder\placeholder-tests.ts" />
     <TypeScriptCompile Include="apps\tests\xml-declaration\custom-code-file.ts" />
     <TypeScriptCompile Include="apps\transforms\app.ts" />
     <TypeScriptCompile Include="apps\transforms\main-page.ts" />
@@ -1984,7 +1985,7 @@
           <SaveServerSettingsInUserFile>False</SaveServerSettingsInUserFile>
         </WebProjectProperties>
       </FlavorProperties>
-      <UserProperties ui_2layouts_2wrap-layout_2package_1json__JSONSchema="http://json.schemastore.org/package" ui_2layouts_2grid-layout_2package_1json__JSONSchema="" ui_2layouts_2dock-layout_2package_1json__JSONSchema="" ui_2layouts_2absolute-layout_2package_1json__JSONSchema="http://json.schemastore.org/package" ui_2web-view_2package_1json__JSONSchema="http://json.schemastore.org/package" ui_2content-view_2package_1json__JSONSchema="http://json.schemastore.org/package" apps_2gallery-app_2package_1json__JSONSchema="http://json.schemastore.org/package" apps_2absolute-layout-demo_2package_1json__JSONSchema="http://json.schemastore.org/package" apps_2editable-text-demo_2package_1json__JSONSchema="http://json.schemastore.org/package" ui_2scroll-view_2package_1json__JSONSchema="http://json.schemastore.org/package" />
+      <UserProperties ui_2scroll-view_2package_1json__JSONSchema="http://json.schemastore.org/package" apps_2editable-text-demo_2package_1json__JSONSchema="http://json.schemastore.org/package" apps_2absolute-layout-demo_2package_1json__JSONSchema="http://json.schemastore.org/package" apps_2gallery-app_2package_1json__JSONSchema="http://json.schemastore.org/package" ui_2content-view_2package_1json__JSONSchema="http://json.schemastore.org/package" ui_2web-view_2package_1json__JSONSchema="http://json.schemastore.org/package" ui_2layouts_2absolute-layout_2package_1json__JSONSchema="http://json.schemastore.org/package" ui_2layouts_2dock-layout_2package_1json__JSONSchema="" ui_2layouts_2grid-layout_2package_1json__JSONSchema="" ui_2layouts_2wrap-layout_2package_1json__JSONSchema="http://json.schemastore.org/package" />
     </VisualStudio>
   </ProjectExtensions>
 </Project>

apps/tests/testRunner.ts

@@ -61,6 +61,7 @@ allTests["IMAGE"] = require("./ui/image/image-tests");
 allTests["SLIDER"] = require("./ui/slider/slider-tests");
 allTests["SWITCH"] = require("./ui/switch/switch-tests");
 allTests["PROGRESS"] = require("./ui/progress/progress-tests");
+allTests["PLACEHOLDER"] = require("./ui/placeholder/placeholder-tests");
 allTests["PAGE"] = require("./ui/page/page-tests");
 allTests["LISTVIEW"] = require("./ui/list-view/list-view-tests");
 allTests["ACTIVITY-INDICATOR"] = require("./ui/activity-indicator/activity-indicator-tests");

apps/tests/ui/placeholder/placeholder-tests.ts

@@ -0,0 +1,78 @@
+import TKUnit = require("../../TKUnit");
+import platform = require("platform");
+import utils = require("utils/utils");
+import helper = require("../helper");
+import viewModule = require("ui/core/view");
+
+// <snippet module="ui/placeholder" title="placeholder">
+// # Placeholder
+// Using the placeholder requires the Placeholder module.
+// ``` JavaScript
+import placeholderModule = require("ui/placeholder");
+// ```
+
+// Creating native view for the Placeholder using creatingView event.
+//```XML
+// <Page>
+//   {%raw%}<Placeholder creatingView="creatingView" />{%endraw%}
+// </Page>
+//```
+//```JS
+//var platform = require("platform");
+//var utils = require("utils/utils");
+//
+//function creatingView(args) {
+//    var nativeView;
+//    if (platform.device.os === platform.platformNames.ios) {
+//        nativeView = new UITextView();
+//        nativeView.text = "Native";
+//    } else if (platform.device.os === platform.platformNames.android) {
+//        nativeView = new android.widget.TextView(utils.ad.getApplicationContext());
+//        nativeView.setText("Native");
+//    }
+//
+//    args.view = nativeView;
+//}
+//
+//exports.creatingView = creatingView;
+//```
+// </snippet>
+
+export function test_placeholder_creatingView() {
+    var nativeView;
+
+    var p = new placeholderModule.Placeholder();
+    p.id = "test";
+    p.on(placeholderModule.Placeholder.creatingViewEvent, (args: placeholderModule.CreateViewEventData) => {
+        if (platform.device.os === platform.platformNames.ios) {
+            nativeView = new UITextView();
+            nativeView.text = "Native";
+        } else if (platform.device.os === platform.platformNames.android) {
+            nativeView = new android.widget.TextView(utils.ad.getApplicationContext());
+            nativeView.setText("Native");
+        }
+    
+        args.view = nativeView;
+    });
+
+    if (platform.device.os === platform.platformNames.ios) {
+       TKUnit.assert(p.ios instanceof UITextView, "ios property should be UITextView. Current value: " + p.ios);
+    } else if (platform.device.os === platform.platformNames.android) {
+       p._emit("creatingView");
+       TKUnit.assert(nativeView instanceof android.widget.TextView, "Native view should be android.widget.TextView. Current value: " + nativeView);
+    }
+}
+
+export function test_placeholder_will_not_crash_wihout_creatingView() {
+    var p = new placeholderModule.Placeholder();   
+
+    function testAction(views: Array<viewModule.View>) {
+        if (platform.device.os === platform.platformNames.ios) {
+            TKUnit.assert(p.ios === undefined, "ios property should be undefined. Current value: " + p.ios);
+        } else if (platform.device.os === platform.platformNames.android) {
+            TKUnit.assert(p.android === undefined, "android view should be undefined. Current value: " + p.android);
+        }
+    };
+
+    helper.buildUIAndRunTest(p, testAction);
+}

ui/core/view.ios.ts

@@ -196,8 +196,10 @@ export class View extends viewCommon.View {
 
     public onMeasure(widthMeasureSpec: number, heightMeasureSpec: number): void {
         var view = this._nativeView;
-        if (view) {
+        let nativeWidth = 0;
+        let nativeHeight = 0;
 
+        if (view) {
             var width = utils.layout.getMeasureSpecSize(widthMeasureSpec);
             var widthMode = utils.layout.getMeasureSpecMode(widthMeasureSpec);
 
@@ -213,16 +215,18 @@ export class View extends viewCommon.View {
             }
 
             var nativeSize = view.sizeThatFits(CGSizeMake(width, height));
+            nativeWidth = nativeSize.width;
+            nativeHeight = nativeSize.height;
+        }
 
-            var measureWidth = Math.max(nativeSize.width, this.minWidth);
+        var measureWidth = Math.max(nativeWidth, this.minWidth);
-            var measureHeight = Math.max(nativeSize.height, this.minHeight);
+        var measureHeight = Math.max(nativeHeight, this.minHeight);
 
         var widthAndState = View.resolveSizeAndState(measureWidth, width, widthMode, 0);
         var heightAndState = View.resolveSizeAndState(measureHeight, height, heightMode, 0);
 
         this.setMeasuredDimension(widthAndState, heightAndState);
     }
-    }
 
     public onLayout(left: number, top: number, right: number, bottom: number): void {
         //

ui/placeholder/placeholder.android.ts

@@ -9,7 +9,7 @@ export class Placeholder extends common.Placeholder {
     public _createUI() {
         var args = <definition.CreateViewEventData>{ eventName: common.Placeholder.creatingViewEvent, object: this, view: undefined, context: this._context };
         this.notify(args);
-        this._android = <android.view.View>args.view || new android.view.View(this._context);
+        this._android = <android.view.View>args.view;
     }
 
     get android(): android.view.View {

ui/placeholder/placeholder.ios.ts

@@ -10,7 +10,7 @@ export class Placeholder extends common.Placeholder {
         if (!this._ios) {
             var args = <definition.CreateViewEventData>{ eventName: common.Placeholder.creatingViewEvent, object: this, view: undefined, context: undefined };
             super.notify(args);
-            this._ios = args.view || new UIView();
+            this._ios = args.view;
         }
         return this._ios;
     }