New CCTextField implementation. Implement PlaceHolderText and PlaceHo…

…lderTextColor.

Fix TextFieldActionTest to work with CCTextField implementation
Add new TextFieldUppercaseTest to show how to implement overriding field implementation.  This will change all all characters to uppercase.

See Issue #55

src/text_input_node/CCTextField.cs

@@ -11,15 +11,21 @@ public class CCTextField : CCLabel
         bool autoEdit;
         bool touchHandled;
 
-
-
         public ICCIMEDelegate TextFieldIMEImplementation { get; set; }
+        string placeHolderText = string.Empty;
+
+        CCColor4B defaultTextColor = CCColor4B.White;
+        CCColor4B placeholderTextColor = CCColor4B.Gray;
 
         public event CCTextFieldDelegate BeginEditing;
         public event CCTextFieldDelegate EndEditing;
 
         #region Properties
 
+        /// <summary>
+        /// Gets or sets a value indicating whether this <see cref="CocosSharp.CCTextField"/> read only.
+        /// </summary>
+        /// <value><c>true</c> if read only; otherwise, <c>false</c>.</value>
         public bool ReadOnly
         {
             get { return readOnly; }
@@ -36,6 +42,10 @@ public bool ReadOnly
             }
         }
 
+        /// <summary>
+        /// Gets or sets a value indicating whether this <see cref="CocosSharp.CCTextField"/> auto edits.
+        /// </summary>
+        /// <value><c>true</c> if auto edit; otherwise, <c>false</c>.</value>
         public bool AutoEdit
         {
             get { return autoEdit; }
@@ -46,8 +56,104 @@ public bool AutoEdit
             }
         }
 
+        /// <summary>
+        /// Gets or sets the place holder text when the Text is empty.
+        /// </summary>
+        /// <value>The place holder text.</value>
+        public string PlaceHolderText 
+        {
+            get { return placeHolderText; }
+            set 
+            {
+                if (placeHolderText == value)
+                    return;
+
+                placeHolderText = value;
+
+                if (string.IsNullOrEmpty(Text))
+                    Text = placeHolderText;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the color of the place holder text.
+        /// </summary>
+        /// <value>The color of the place holder text.</value>
+        public CCColor4B PlaceHolderTextColor
+        {
+            get { return placeholderTextColor; }
+            set {
+                placeholderTextColor = value;
+                updateColors();
+            }
+        }
+
+        void updateColors()
+        {
+            if (Text == placeHolderText)
+            {
+                if (Color.R != PlaceHolderTextColor.R ||
+                    Color.G != PlaceHolderTextColor.G ||
+                    Color.B != PlaceHolderTextColor.B ||
+                    Opacity != PlaceHolderTextColor.A)
+                {
+                    Color = new CCColor3B(placeholderTextColor);
+                    Opacity = placeholderTextColor.A;
+                }
+            }
+            else
+            {
+                if (Color.R != defaultTextColor.R ||
+                    Color.G != defaultTextColor.G ||
+                    Color.B != defaultTextColor.B ||
+                    Opacity != defaultTextColor.A)
+                {
+                    Color = new CCColor3B(defaultTextColor);
+                    Opacity = defaultTextColor.A;
+                }
+            }
+        }
+
+        public override string Text
+        {
+            get
+            {
+                return base.Text;
+            }
+            set
+            {
+                if (string.IsNullOrEmpty(value))
+                {
+                    base.Text = placeHolderText;
+                    updateColors();
+                }
+                else
+                {
+                    base.Text = value;
+                    updateColors();
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets a value indicating whether this <see cref="CocosSharp.CCTextField"/> auto repeats.
+        /// </summary>
+        /// <value><c>true</c> if auto repeat; otherwise, <c>false</c>.</value>
         public bool AutoRepeat { get; set; }
 
+        /// <summary>
+        /// Gets the character count.
+        /// </summary>
+        /// <value>The character count.  Returns 0 if current text is equal to PlaceHolderText</value>
+        public int CharacterCount 
+        {
+            get 
+            { 
+                var currentText = Text;
+                return currentText == placeHolderText ? 0 : currentText.Length; 
+            }
+        }
+
         #endregion Properties
 
 
@@ -84,7 +190,10 @@ public CCTextField(string text, string fontName, float fontSize, CCSize dimensio
             this.HorizontalAlignment = hAlignment;
             this.VerticalAlignment = vAlignment;
             AutoRepeat = true;
+            placeHolderText = text;
+            updateColors();
             TextFieldIMEImplementation = IMEKeyboardImpl.SharedInstance;
+
         }
 
         #endregion Constructors
@@ -160,9 +269,15 @@ public void EndEdit()
 #endif
         }
 
+        /// <summary>
+        /// Deletes a character from the end of TextField.
+        /// </summary>
         protected virtual void DeleteBackwards()
         {
             var text = Text;
+            if (text == placeHolderText)
+                return;
+
             if (string.IsNullOrEmpty(text) || text.Length == 1)
             {
                 Text = string.Empty;
@@ -173,6 +288,11 @@ protected virtual void DeleteBackwards()
             }
         }
 
+        /// <summary>
+        /// Inserts the text at the end of the TextField
+        /// </summary>
+        /// <param name="text">Text.</param>
+        /// <param name="len">Length.</param>
         protected virtual void InsertText(string text, int len)
         {
 
@@ -188,13 +308,21 @@ protected virtual void InsertText(string text, int len)
 
             if (len > 0)
             {
-                Text += insert.ToString();
+                if (Text == placeHolderText)
+                    Text = text;
+                else
+                    Text += insert.ToString();
                 return;
             }
 
             EndEdit();
         }
 
+        /// <summary>
+        /// Replaces the current text of the field
+        /// </summary>
+        /// <param name="text">Text.</param>
+        /// <param name="len">Length.</param>
         protected virtual void ReplaceText(string text, int len)
         {
             var insert = new System.Text.StringBuilder(text, len);
@@ -244,7 +372,7 @@ public override void OnEnter()
             CheckTouchState();
         }
 
-        private void IMEImplementation_KeyboardDidHide(object sender, CCIMEKeyboardNotificationInfo e)
+        void OnKeyboardDidHide(object sender, CCIMEKeyboardNotificationInfo e)
         {
             if (TextFieldIMEImplementation != null)
             {
@@ -277,7 +405,7 @@ public override void OnExit()
             CheckTouchState();
             if (TextFieldIMEImplementation != null)
             {
-                TextFieldIMEImplementation.KeyboardDidHide -= IMEImplementation_KeyboardDidHide;
+                TextFieldIMEImplementation.KeyboardDidHide -= OnKeyboardDidHide;
             }
         }
 

src/text_input_node/MacOSX/IMEKeyboardImpl.cs

@@ -242,7 +242,7 @@ void OnKeyPressed(CCEventKeyboard eventKeyboard)
                 }
             }
 
-            CCLog.Log("On Pressed " + lastPressedKey);
+            //CCLog.Log("On Pressed " + lastPressedKey);
             if (AutoRepeat && lastPressedKey != CCKeys.None)
             {
                 StartAutorepeat();
@@ -251,7 +251,7 @@ void OnKeyPressed(CCEventKeyboard eventKeyboard)
 
         void OnKeyReleased(CCEventKeyboard eventKeyboard)
         {
-            CCLog.Log("On Released " + eventKeyboard.Keys);
+            //CCLog.Log("On Released " + eventKeyboard.Keys);
             if (eventKeyboard.Keys == CCKeys.Back)
                 OnDeleteBackward();
             else

tests/tests/classes/TestNavigationLayer.cs

@@ -71,8 +71,18 @@ public override void OnEnter()
 
             TitleLabel.Position = new CCPoint(visibleRect.Center.X, visibleRect.Top().Y - 30);
 
-			if (!string.IsNullOrEmpty(Subtitle))
-				SubtitleLabel.Text = Subtitle;
+            string subtitleStr = Subtitle;
+
+            if (!string.IsNullOrEmpty(subtitleStr) && SubtitleLabel == null)
+            {
+                SubtitleLabel = new CCLabel(subtitleStr, "arial", 16, CCLabelFormat.SpriteFont);
+                SubtitleLabel.AnchorPoint = CCPoint.AnchorMiddleTop;
+                SubtitleLabel.HorizontalAlignment = CCTextAlignment.Center;
+                AddChild(SubtitleLabel, TestScene.TITLE_LEVEL);
+            }
+            else 
+    			if (!string.IsNullOrEmpty(Subtitle))
+    				SubtitleLabel.Text = Subtitle;
 
             if(SubtitleLabel != null)
                 SubtitleLabel.Position = new CCPoint(visibleRect.Center.X, visibleRect.Top().Y - 60);