Merge pull request #209 from NativeScript/background-image-css

Background image css property implemented

CrossPlatformModules.csproj

@@ -543,6 +543,7 @@
     <Content Include="apps\gallery-app\layouts\dock-layout.xml" />
     <Content Include="apps\template-master-detail\details-view.xml" />
     <Content Include="apps\template-master-detail\main-page.minWH600.xml" />
+    <Content Include="apps\TelerikNEXT\images\background.jpg" />
     <Content Include="apps\template-settings\app.css" />
     <Content Include="apps\tests\app\binding_tests.xml" />
     <Content Include="apps\tests\ui\label\label-tests-wrong.css" />
@@ -1517,7 +1518,7 @@
           <SaveServerSettingsInUserFile>False</SaveServerSettingsInUserFile>
         </WebProjectProperties>
       </FlavorProperties>
-      <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_2linear-layout_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" />
+      <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_2layouts_2linear-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" />
     </VisualStudio>
   </ProjectExtensions>
 </Project>

apps/TelerikNEXT/main-page.xml

@@ -23,8 +23,9 @@
     </tsb:SideBar.slideContent>
 
     <tsb:SideBar.mainContent>
-      <GridLayout rows="auto, auto, auto, *">
+      <GridLayout rows="auto, auto, *">
 
+        <StackLayout style="background-image: url('~/app/images/background.jpg')">
           <SegmentedBar selectedIndex="{{ selectedIndex }}"  style="background-color: transparent;color: white;" selectedBackgroundColor="#fac950">
             <SegmentedBar.items>
               <SegmentedBarItem title="MAY 3" />
@@ -33,7 +34,7 @@
             </SegmentedBar.items>
           </SegmentedBar>
 
-        <Label row="1" style="horizontal-align: center;margin: 15;">
+          <Label style="horizontal-align: center;margin: 15;">
             <Label.formattedText>
               <FormattedString fontSize="18" foregroundColor="#fac950">
                 <FormattedString.spans>
@@ -42,10 +43,11 @@
               </FormattedString>
             </Label.formattedText>
           </Label>
+        </StackLayout>
 
-        <SearchBar text="{{ search }}" hint="Search" style="background-color: #fac950; color: #fac950;" textFieldBackgroundColor="white" row="2" />
+        <SearchBar text="{{ search }}" hint="Search" style="background-color: #fac950; color: #fac950;" textFieldBackgroundColor="white" row="1" />
 
-        <ListView items="{{ sessions }}" row="3" separatorColor="#fac950">
+        <ListView items="{{ sessions }}" row="2" separatorColor="#fac950">
           <ListView.itemTemplate>
             <GridLayout columns="auto, *">
 

ui/styling/style.ts

@@ -9,6 +9,7 @@ import stylers = require("ui/styling/stylers");
 import styleProperty = require("ui/styling/style-property");
 import converters = require("ui/styling/converters");
 import enums = require("ui/enums");
+import imageSource = require("image-source");
 
 // key is the property id and value is Dictionary<string, StylePropertyChangedHandler>;
 var _registeredHandlers = {};
@@ -34,6 +35,13 @@ export class Style extends observable.DependencyObservable implements styling.St
         this._setValue(backgroundColorProperty, value, observable.ValueSource.Local);
     }
 
+    get backgroundImage(): string {
+        return this._getValue(backgroundImageProperty);
+    }
+    set backgroundImage(value: string) {
+        this._setValue(backgroundImageProperty, value, observable.ValueSource.Local);
+    }
+
     get fontSize(): number {
         return this._getValue(fontSizeProperty);
     }
@@ -332,6 +340,26 @@ export var colorProperty = new styleProperty.Property("color", "color",
     new observable.PropertyMetadata(undefined, observable.PropertyMetadataSettings.Inheritable, undefined, undefined, color.Color.equals),
     converters.colorConverter);
 
+export var backgroundImageProperty = new styleProperty.Property("backgroundImage", "background-image",
+    new observable.PropertyMetadata(undefined, observable.PropertyMetadataSettings.None, onBackgroundImagePropertyChanged));
+
+function onBackgroundImagePropertyChanged(data: observable.PropertyChangeData) {
+    var style = <Style>data.object;
+    var pattern: RegExp = /url\(('|")(.*?)\1\)/;
+    var url = (<string>data.newValue).match(pattern)[2];
+
+    if (imageSource.isFileOrResourcePath(url)) {
+        style._setValue(backgroundImageSourceProperty, imageSource.fromFileOrResource(url), observable.ValueSource.Local);
+    } else if (types.isString(url)) {
+        imageSource.fromUrl(url).then(r=> {
+            style._setValue(backgroundImageSourceProperty, r, observable.ValueSource.Local);
+        });
+    }
+}
+
+export var backgroundImageSourceProperty = new styleProperty.Property("backgroundImageSource", "background-image-source",
+    new observable.PropertyMetadata(undefined, observable.PropertyMetadataSettings.None, undefined, undefined, undefined));
+
 export var backgroundColorProperty = new styleProperty.Property("backgroundColor", "background-color",
     new observable.PropertyMetadata(undefined, observable.PropertyMetadataSettings.None, undefined, undefined, color.Color.equals),
     converters.colorConverter);

ui/styling/stylers.android.ts

@@ -35,6 +35,32 @@ export class DefaultStyler implements definition.stylers.Styler {
         return drawable;
     }
 
+    //Background image methods
+    private static setBackgroundImageSourceProperty(view: view.View, newValue: any) {
+        var nativeView = <android.view.View>view.android;
+        var bmp = <android.graphics.Bitmap>newValue;
+        var d = new android.graphics.drawable.BitmapDrawable(bmp);
+        d.setTileModeXY(android.graphics.Shader.TileMode.REPEAT, android.graphics.Shader.TileMode.REPEAT);
+        d.setDither(true); 
+        nativeView.setBackgroundDrawable(d);
+    }
+
+    private static resetBackgroundImageSourceProperty(view: view.View, nativeValue: any) {
+        if (types.isDefined(nativeValue)) {
+            (<android.view.View>view.android).setBackgroundDrawable(nativeValue)
+        }
+    }
+
+    private static getNativeBackgroundImageSourceValue(view: view.View): any {
+        var drawable = view.android.getBackground();
+
+        if (drawable instanceof android.graphics.drawable.BitmapDrawable) {
+            return drawable;
+        }
+
+        return undefined;
+    }
+
     //Visibility methods
     private static setVisibilityProperty(view: view.View, newValue: any) {
         var androidValue = (newValue === enums.Visibility.visible) ? android.view.View.VISIBLE : android.view.View.GONE;
@@ -78,6 +104,11 @@ export class DefaultStyler implements definition.stylers.Styler {
             DefaultStyler.resetBackgroundProperty,
             DefaultStyler.getNativeBackgroundValue));
 
+        style.registerHandler(style.backgroundImageSourceProperty, new stylersCommon.StylePropertyChangedHandler(
+            DefaultStyler.setBackgroundImageSourceProperty,
+            DefaultStyler.resetBackgroundImageSourceProperty,
+            DefaultStyler.getNativeBackgroundImageSourceValue));
+
         style.registerHandler(style.visibilityProperty, new stylersCommon.StylePropertyChangedHandler(
             DefaultStyler.setVisibilityProperty,
             DefaultStyler.resetVisibilityProperty));

ui/styling/stylers.ios.ts

@@ -32,6 +32,29 @@ export class DefaultStyler implements definition.stylers.Styler {
         return undefined;
     }
 
+    //Background image methods
+    private static setBackgroundImageSourceProperty(view: view.View, newValue: any) {
+        var nativeView: UIView = <UIView>view._nativeView;
+        if (nativeView) {
+            nativeView.backgroundColor = UIColor.alloc().initWithPatternImage(newValue);
+        }
+    }
+
+    private static resetBackgroundImageSourceProperty(view: view.View, nativeValue: any) {
+        var nativeView: UIView = <UIView>view._nativeView;
+        if (nativeView) {
+            nativeView.backgroundColor = nativeValue;
+        }
+    }
+
+    private static getNativeBackgroundImageSourceValue(view: view.View): any {
+        var nativeView: UIView = <UIView>view._nativeView;
+        if (nativeView) {
+            return nativeView.backgroundColor;
+        }
+        return undefined;
+    }
+
     //Visibility methods
     private static setVisibilityProperty(view: view.View, newValue: any) {
         var nativeView: UIView = <UIView>view._nativeView;
@@ -68,6 +91,11 @@ export class DefaultStyler implements definition.stylers.Styler {
             DefaultStyler.resetBackgroundProperty,
             DefaultStyler.getNativeBackgroundValue));
 
+        style.registerHandler(style.backgroundImageSourceProperty, new stylersCommon.StylePropertyChangedHandler(
+            DefaultStyler.setBackgroundImageSourceProperty,
+            DefaultStyler.resetBackgroundImageSourceProperty,
+            DefaultStyler.getNativeBackgroundImageSourceValue));
+
         style.registerHandler(style.visibilityProperty, new stylersCommon.StylePropertyChangedHandler(
             DefaultStyler.setVisibilityProperty,
             DefaultStyler.resetVisibilityProperty));