Merge pull request #1046 from NativeScript/text-decoration

text-decoration implemented

CrossPlatformModules.csproj

@@ -238,6 +238,7 @@
     <TypeScriptCompile Include="apps\ui-tests-app\action-bar\color.ts">
       <DependentUpon>color.xml</DependentUpon>
     </TypeScriptCompile>
+    <TypeScriptCompile Include="apps\ui-tests-app\css\text-decoration.ts" />
     <TypeScriptCompile Include="apps\ui-tests-app\html-view\html-view.ts">
       <DependentUpon>html-view.xml</DependentUpon>
     </TypeScriptCompile>

apps/gallery-app/app.css

@@ -20,3 +20,8 @@ Switch, Progress, Slider, SegmentedBar {
     color: mediumaquamarine;
     background-color: aquamarine;
 }*/
+
+/*
+TextView, TextField, Label, Button {
+    text-decoration: underline;
+}*/

apps/ui-tests-app/css/text-decoration.ts

@@ -0,0 +1,17 @@
+var obj;
+
+export function loaded(args) {
+    obj = args.object;
+}
+
+export function butonTap(args) {
+    if (obj.style.textDecoration === "underline") {
+        obj.style.textDecoration = "line-through";
+    } else if (obj.style.textDecoration === "line-through") {
+        obj.style.textDecoration = "line-through underline";
+    } else if (obj.style.textDecoration === "line-through underline") {
+        obj.style.textDecoration = "none";
+    } else if (obj.style.textDecoration === "none") {
+        obj.style.textDecoration = "underline";
+    }
+}

apps/ui-tests-app/css/text-decoration.xml

@@ -0,0 +1,32 @@
+<Page >
+  <ScrollView>
+    <StackLayout>
+      <Button text="Change" tap="butonTap" />
+      <Label text="Text" style.textDecoration="underline" loaded="loaded"/>
+
+      <Label text="Label" style="text-decoration:none" />
+      <Label text="Label" style="text-decoration:underline" />
+      <Label text="Label" style="text-decoration:line-through" />
+      <Label text="Label" style="text-decoration:line-through underline" />
+      <Label text="Label" style="text-decoration:line-through underline none" />
+
+      <TextField text="TextField" style="text-decoration:none" />
+      <TextField text="TextField" style="text-decoration:underline" />
+      <TextField text="TextField" style="text-decoration:line-through" />
+      <TextField text="TextField" style="text-decoration:underline line-through" />
+      <TextField text="TextField" style="text-decoration:underline line-through none" />
+
+      <TextView text="TextView" style="text-decoration:none" />
+      <TextView text="TextView" style="text-decoration:underline" />
+      <TextView text="TextView" style="text-decoration:line-through" />
+      <TextView text="TextView" style="text-decoration:line-through underline" />
+      <TextView text="TextView" style="text-decoration:line-through underline none" />
+
+      <Button text="Button" style="text-decoration:none" />
+      <Button text="Button" style="text-decoration:underline" />
+      <Button text="Button" style="text-decoration:line-through" />
+      <Button text="Button" style="text-decoration:underline line-through" />
+      <Button text="Button" style="text-decoration:underline line-through none" />
+    </StackLayout>
+  </ScrollView>
+</Page>

apps/ui-tests-app/mainPage.ts

@@ -90,4 +90,5 @@ examples.set("textfield", "text-field/text-field");
 examples.set("webview", "web-view/web-view");
 examples.set("webtest", "web-view/web-vew-test");
 
+examples.set("decoration", "css/text-decoration");
 //VM.set("selected", "tabAll");

ui/enums/enums.d.ts

@@ -418,6 +418,25 @@
         export var italic: string;
     }
 
+    /**
+     * Specifies different text decorations.
+     */
+    export module TextDecoration {
+        /**
+         * No decoration.
+         */
+        export var none: string;
+        
+        /**
+         * Text decoration underline.
+         */
+        export var underline: string;
+
+        /**
+         * Text decoration line-through.
+         */
+        export var lineThrough: string;
+    }
     
     /**
      * Specifies different font weights.

ui/enums/enums.ts

@@ -20,6 +20,12 @@ export module TextAlignment {
     export var right = "right";
 }
 
+export module TextDecoration {
+    export var none = "none";
+    export var underline = "underline";
+    export var lineThrough = "line-through";
+}
+
 export module Orientation {
     export var horizontal = "horizontal";
     export var vertical = "vertical";

ui/styling/converters.ts

@@ -17,10 +17,18 @@ export function textAlignConverter(value: string): string {
         case enums.TextAlignment.center:
         case enums.TextAlignment.right:
             return value;
-            break;
         default:
             throw new Error("CSS text-align \"" + value + "\" is not supported.");
-            break;
+    }
+}
+
+export function textDecorationConverter(value: string): string {
+    var values = (value + "").split(" ");
+
+    if (values.indexOf(enums.TextDecoration.none) !== -1 || values.indexOf(enums.TextDecoration.underline) !== -1 || values.indexOf(enums.TextDecoration.lineThrough) !== -1) {
+        return value;
+    } else {
+        throw new Error("CSS text-decoration \"" + value + "\" is not supported.");
     }
 }
 

ui/styling/style.d.ts

@@ -44,6 +44,7 @@ declare module "ui/styling/style" {
         public fontWeight: string;
         public font: string;
         public textAlignment: string;
+        public textDecoration: string;
         public minWidth: number;
         public minHeight: number;
         public width: number;
@@ -72,6 +73,7 @@ declare module "ui/styling/style" {
         public _inheritStyleProperty(property: Property): void;
         public _inheritStyleProperties(): void;
         public _boundsChanged(): void;
+        public _updateTextDecoration(): void;
     }
 
     export function registerHandler(property: Property, handler: styling.stylers.StylePropertyChangedHandler, className?: string);

ui/styling/style.ts

@@ -239,6 +239,12 @@ function isVisibilityValid(value: string): boolean {
     return value === enums.Visibility.visible || value === enums.Visibility.collapse || value === enums.Visibility.collapsed;
 }
 
+function isTextDecorationValid(value: string): boolean {
+    var values = (value + "").split(" ");
+
+    return values.indexOf(enums.TextDecoration.none) !== -1 || values.indexOf(enums.TextDecoration.underline) !== -1 || values.indexOf(enums.TextDecoration.lineThrough) !== -1;
+}
+
 function onVisibilityChanged(data: PropertyChangeData) {
     (<any>data.object)._view._isVisibleCache = data.newValue === enums.Visibility.visible;
 }
@@ -536,6 +542,19 @@ export class Style extends DependencyObservable implements styling.Style {
         this._setValue(opacityProperty, value);
     }
 
+    get textDecoration(): string {
+        return this._getValue(textDecorationProperty);
+    }
+    set textDecoration(value: string) {
+        this._setValue(textDecorationProperty, value);
+    }
+
+    public _updateTextDecoration() {
+        if (this._getValue(textDecorationProperty) !== enums.TextDecoration.none) {
+            this._applyProperty(textDecorationProperty, this._getValue(textDecorationProperty));
+        }
+    }
+
     constructor(parentView: View) {
         super();
         this._view = parentView;
@@ -788,6 +807,9 @@ export var visibilityProperty = new styleProperty.Property("visibility", "visibi
 export var opacityProperty = new styleProperty.Property("opacity", "opacity",
     new PropertyMetadata(1.0, PropertyMetadataSettings.None, undefined, isOpacityValid), converters.opacityConverter);
 
+export var textDecorationProperty = new styleProperty.Property("textDecoration", "text-decoration",
+    new PropertyMetadata(enums.TextDecoration.none, PropertyMetadataSettings.None, undefined, isTextDecorationValid), converters.textDecorationConverter);
+
 // Helper property holding most layout related properties available in CSS.
 // When layout related properties are set in CSS we chache them and send them to the native view in a single call.
 export var nativeLayoutParamsProperty = new styleProperty.Property("nativeLayoutParams", "nativeLayoutParams",

ui/styling/stylers.android.ts

@@ -416,6 +416,15 @@ export class TextViewStyler implements definition.stylers.Styler {
         return view._nativeView.getGravity();
     }
 
+    // text-decoration
+    private static setTextDecorationProperty(view: view.View, newValue: any) {
+        setTextDecoration(view._nativeView, newValue);
+    }
+
+    private static resetTextDecorationProperty(view: view.View, nativeValue: any) {
+        setTextDecoration(view._nativeView, enums.TextDecoration.none);
+    }
+
     public static registerHandlers() {
         style.registerHandler(style.colorProperty, new stylersCommon.StylePropertyChangedHandler(
             TextViewStyler.setColorProperty,
@@ -432,6 +441,10 @@ export class TextViewStyler implements definition.stylers.Styler {
             TextViewStyler.resetTextAlignmentProperty,
             TextViewStyler.getNativeTextAlignmentValue), "TextBase");
 
+        style.registerHandler(style.textDecorationProperty, new stylersCommon.StylePropertyChangedHandler(
+            TextViewStyler.setTextDecorationProperty,
+            TextViewStyler.resetTextDecorationProperty), "TextBase");
+
         // Register the same stylers for Button.
         // It also derives from TextView but is not under TextBase in our View hierarchy.
         style.registerHandler(style.colorProperty, new stylersCommon.StylePropertyChangedHandler(
@@ -448,6 +461,30 @@ export class TextViewStyler implements definition.stylers.Styler {
             TextViewStyler.setTextAlignmentProperty,
             TextViewStyler.resetTextAlignmentProperty,
             TextViewStyler.getNativeTextAlignmentValue), "Button");
+
+        style.registerHandler(style.textDecorationProperty, new stylersCommon.StylePropertyChangedHandler(
+            TextViewStyler.setTextDecorationProperty,
+            TextViewStyler.resetTextDecorationProperty), "Button");
+    }
+}
+
+function setTextDecoration(view: android.widget.TextView, value: string) {
+    var flags = 0;
+
+    var values = (value + "").split(" ");
+
+    if (values.indexOf(enums.TextDecoration.underline) !== -1) {
+        flags = flags | android.graphics.Paint.UNDERLINE_TEXT_FLAG;
+    }
+
+    if (values.indexOf(enums.TextDecoration.lineThrough) !== -1) {
+        flags = flags | android.graphics.Paint.STRIKE_THRU_TEXT_FLAG;
+    }
+
+    if (values.indexOf(enums.TextDecoration.none) === -1) {
+        view.setPaintFlags(flags);
+    } else {
+        view.setPaintFlags(0);
     }   
 }
 

ui/styling/stylers.ios.ts

@@ -7,6 +7,7 @@ import font = require("ui/styling/font");
 import background = require("ui/styling/background");
 import frame = require("ui/frame");
 import tabView = require("ui/tab-view");
+import formattedString = require("text/formatted-string");
 
 global.moduleMerge(stylersCommon, exports);
 
@@ -14,6 +15,8 @@ interface TextUIView {
     font: UIFont;
     textAlignment: number;
     textColor: UIColor;
+    text : string;
+    attributedText : NSAttributedString;
 }
 
 var ignorePropertyHandler = new stylersCommon.StylePropertyChangedHandler(
@@ -251,6 +254,15 @@ export class ButtonStyler implements definition.stylers.Styler {
         (<UIButton>view._nativeView).contentEdgeInsets = UIEdgeInsetsFromString("{0,0,0,0}");
     }
 
+    // text-decoration
+    private static setTextDecorationProperty(view: view.View, newValue: any) {
+        setTextDecoration((<UIButton>view.ios).titleLabel, newValue);
+    }
+
+    private static resetTextDecorationProperty(view: view.View, nativeValue: any) {
+        setTextDecoration((<UIButton>view.ios).titleLabel, enums.TextDecoration.none);
+    }
+
     public static registerHandlers() {
         style.registerHandler(style.colorProperty, new stylersCommon.StylePropertyChangedHandler(
             ButtonStyler.setColorProperty,
@@ -270,6 +282,10 @@ export class ButtonStyler implements definition.stylers.Styler {
         style.registerHandler(style.nativePaddingsProperty, new stylersCommon.StylePropertyChangedHandler(
             ButtonStyler.setPaddingProperty,
             ButtonStyler.resetPaddingProperty), "Button");
+
+        style.registerHandler(style.textDecorationProperty, new stylersCommon.StylePropertyChangedHandler(
+            ButtonStyler.setTextDecorationProperty,
+            ButtonStyler.resetTextDecorationProperty), "Button");
     }
 }
 
@@ -305,6 +321,15 @@ export class TextBaseStyler implements definition.stylers.Styler {
         return ios.textAlignment;
     }
 
+    // text-decoration
+    private static setTextDecorationProperty(view: view.View, newValue: any) {
+        setTextDecoration(view._nativeView, newValue);
+    }
+
+    private static resetTextDecorationProperty(view: view.View, nativeValue: any) {
+        setTextDecoration(view._nativeView, enums.TextDecoration.none);
+    }
+
     // color
     private static setColorProperty(view: view.View, newValue: any) {
         var ios: TextUIView = <TextUIView>view._nativeView;
@@ -336,6 +361,10 @@ export class TextBaseStyler implements definition.stylers.Styler {
             TextBaseStyler.setColorProperty,
             TextBaseStyler.resetColorProperty,
             TextBaseStyler.getNativeColorValue), "TextBase");
+
+        style.registerHandler(style.textDecorationProperty, new stylersCommon.StylePropertyChangedHandler(
+            TextBaseStyler.setTextDecorationProperty,
+            TextBaseStyler.resetTextDecorationProperty), "TextBase");
     }
 }
 
@@ -880,6 +909,36 @@ function setTextAlignment(view: TextUIView, value: string) {
     }
 }
 
+function setTextDecoration(view: TextUIView, value: string) {
+    var attributes: NSMutableDictionary = NSMutableDictionary.alloc().init();
+    var values = (value + "").split(" ");
+
+    if (values.indexOf(enums.TextDecoration.underline) !== -1) {
+        attributes.setObjectForKey(NSUnderlineStyle.NSUnderlineStyleSingle, NSUnderlineStyleAttributeName);
+    }
+
+    if (values.indexOf(enums.TextDecoration.lineThrough) !== -1) {
+        attributes.setObjectForKey(NSUnderlineStyle.NSUnderlineStyleSingle, NSStrikethroughStyleAttributeName);
+    }
+
+    if (values.indexOf(enums.TextDecoration.none) === -1) {
+        setTextDecorationNative(view, view.text || view.attributedText, attributes);
+    } else {
+        setTextDecorationNative(view, view.text || view.attributedText, NSMutableDictionary.alloc().init());
+    }
+}
+
+function setTextDecorationNative(view: TextUIView, value: string | NSAttributedString, attributes: NSMutableDictionary) {
+    var attributedString: NSMutableAttributedString;
+
+    if (value instanceof NSAttributedString) {
+        attributedString = NSMutableAttributedString.alloc().initWithAttributedString(value);
+        attributedString.addAttributesRange(attributes, NSRangeFromString(attributedString.string));
+    } else {
+        view.attributedText = NSAttributedString.alloc().initWithStringAttributes(<string>value, attributes);
+    }
+}
+
 // Register all styler at the end.
 export function _registerDefaultStylers() {
     style.registerNoStylingClass("Frame");

ui/styling/styling.d.ts

@@ -205,6 +205,7 @@
         public _syncNativeProperties(): void;
         public _inheritStyleProperty(property: dependencyObservable.Property): void;
         public _inheritStyleProperties(): void;
+        public _updateTextDecoration(): void;
         //@endprivate
     }
 

ui/text-base/text-base.ts

@@ -95,6 +95,7 @@ export class TextBase extends view.View implements definition.TextBase, formatte
         }
         else if (this.ios) {
             this.ios.text = data.newValue + "";
+            this.style._updateTextDecoration();
         }
     }
 
@@ -103,6 +104,7 @@ export class TextBase extends view.View implements definition.TextBase, formatte
             this.android.setText(value._formattedText);
         } else if (this.ios) {
             this.ios.attributedText = value._formattedText;
+            this.style._updateTextDecoration();
             this.requestLayout();
         }
     }

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

@@ -69,6 +69,11 @@ class UITextFieldDelegateImpl extends NSObject implements UITextFieldDelegate {
     public textFieldShouldChangeCharactersInRangeReplacementString(textField: UITextField, range: NSRange, replacementString: string): boolean {
         let owner = this._owner.get();
         if (owner) {
+
+            var r = textField.selectedTextRange;
+            owner.style._updateTextDecoration();
+            textField.selectedTextRange = r;
+
             if (owner.updateTextTrigger === enums.UpdateTextTrigger.textChanged) {
                 if (textField.secureTextEntry && this.firstEdit) {
                     owner._onPropertyChangedFromNative(textBase.TextBase.textProperty, replacementString);

ui/text-view/text-view.ios.ts

@@ -24,6 +24,10 @@ class UITextViewDelegateImpl extends NSObject implements UITextViewDelegate {
         return true;
     }
 
+    public textViewDidBeginEditing(textView: UITextView) {
+        this._owner.style._updateTextDecoration();
+    }
+
     public textViewDidEndEditing(textView: UITextView) {
         if (this._owner.updateTextTrigger === enums.UpdateTextTrigger.focusLost) {
             this._owner._onPropertyChangedFromNative(textBase.TextBase.textProperty, textView.text);
@@ -34,6 +38,10 @@ class UITextViewDelegateImpl extends NSObject implements UITextViewDelegate {
     }
 
     public textViewDidChange(textView: UITextView) {
+        var range = textView.selectedRange;
+        this._owner.style._updateTextDecoration();
+        textView.selectedRange = range;
+
         if (this._owner.updateTextTrigger === enums.UpdateTextTrigger.textChanged) {
             this._owner._onPropertyChangedFromNative(textBase.TextBase.textProperty, textView.text);
         }