Switched from messages to events for notifications.

Updated example with event callbacks.

Author: prisonerjohn

example-textInput/src/ofApp.cpp

@@ -43,6 +43,10 @@ void ofApp::setup() {
 	multilineTextInput.bounds.height = 500;
 	multilineTextInput.multiline = true;
 
+	// Add event listeners.
+	ofAddListener(monoLineTextInput.editingBegan, this, &ofApp::editingBegan);
+	ofAddListener(monoLineTextInput.editingEnded, this, &ofApp::editingEnded);
+	ofAddListener(monoLineTextInput.textChanged, this, &ofApp::textChanged);
 }
 
 //--------------------------------------------------------------
@@ -103,3 +107,18 @@ void ofApp::gotMessage(ofMessage msg) {
 void ofApp::dragEvent(ofDragInfo dragInfo) { 
 
 }
+
+//--------------------------------------------------------------
+void ofApp::editingBegan(const void* sender) { 
+	cout << "Editing began with text: " << ((ofxTextInputField *)sender)->text << endl;
+}
+
+//--------------------------------------------------------------
+void ofApp::editingEnded(const void* sender) { 
+	cout << "Editing ended with text: " << ((ofxTextInputField *)sender)->text << endl;
+}
+
+//--------------------------------------------------------------
+void ofApp::textChanged(const void* sender, string& text) { 
+	cout << "Text changed to: " << text << endl;
+}

example-textInput/src/ofApp.h

@@ -21,7 +21,10 @@ class ofApp : public ofBaseApp{
 		void windowResized(int w, int h);
 		void dragEvent(ofDragInfo dragInfo);
 		void gotMessage(ofMessage msg);
-	
+
+		void editingBegan(const void* sender);
+		void editingEnded(const void* sender);
+		void textChanged(const void* sender, string& text);
 
 		ofxTextInputField monoLineTextInput, multilineTextInput;
 

src/ofxTextInputField.cpp

@@ -110,7 +110,7 @@ void ofxTextInputField::beginEditing() {
     if(!isEditing){
         ofAddListener(ofEvents().keyPressed, this, &ofxTextInputField::keyPressed);
         ofAddListener(ofEvents().keyReleased, this, &ofxTextInputField::keyReleased);
-        ofSendMessage(TEXTFIELD_IS_ACTIVE);
+		ofNotifyEvent(editingBegan, this);
         isEditing = true;
         drawCursor = true;
 		if(autoClear){
@@ -127,8 +127,7 @@ void ofxTextInputField::endEditing() {
     if(isEditing){
         ofRemoveListener(ofEvents().keyPressed, this, &ofxTextInputField::keyPressed);
         ofRemoveListener(ofEvents().keyReleased, this, &ofxTextInputField::keyReleased);
-		ofSendMessage(TEXTFIELD_IS_INACTIVE);
-        ofNotifyEvent(textChanged, text, this);
+		ofNotifyEvent(editingEnded, this);
         isEditing = false;
         drawCursor = false;
     }
@@ -450,6 +449,7 @@ void ofxTextInputField::keyPressed(ofKeyEventArgs& args) {
 			}
 		}
 
+		ofNotifyEvent(textChanged, text, this);
         return;
 	}
 
@@ -469,6 +469,8 @@ void ofxTextInputField::keyPressed(ofKeyEventArgs& args) {
             text.insert(text.begin()+cursorPosition, key);
         }
 		cursorPosition++;
+
+		ofNotifyEvent(textChanged, text, this);
 	}
 
 
@@ -485,6 +487,8 @@ void ofxTextInputField::keyPressed(ofKeyEventArgs& args) {
 				--cursorPosition;
 			}
 		}
+
+		ofNotifyEvent(textChanged, text, this);
 	}
 
 	if (key==OF_KEY_DEL) {
@@ -499,6 +503,8 @@ void ofxTextInputField::keyPressed(ofKeyEventArgs& args) {
 				text.erase(text.begin()+cursorPosition);
 			}
 		}
+
+		ofNotifyEvent(textChanged, text, this);
 	}
 
 	if (key==OF_KEY_LEFT){

src/ofxTextInputField.h

@@ -31,9 +31,6 @@
 #include OFX_TEXTFIELD_FONT_INCLUDE
 #endif
 
-#define TEXTFIELD_IS_ACTIVE "textfieldIsActive"
-#define TEXTFIELD_IS_INACTIVE "textfieldIsInactive"
-
 #ifdef OF_VERSION_MINOR
 #if OF_VERSION_MINOR>=8 || OF_VERSION_MAJOR>0
 #define USE_GLFW_CLIPBOARD
@@ -83,7 +80,10 @@ class ofxTextInputField {
 	int selectionEnd;
 	bool selecting;
 
+	ofEvent<void> editingBegan;
+	ofEvent<void> editingEnded;
 	ofEvent<string> textChanged;
+
 	void keyPressed(ofKeyEventArgs &a);
     void keyReleased(ofKeyEventArgs &a);