Merge pull request #1 in VSTSDK/vstgui from develop to master

* commit 'ca0bf2d843b3bed8163cdde26db21bad18270f71':
  add ITextEditListener

vstgui/lib/CMakeLists.txt

@@ -96,6 +96,7 @@ set(${target}_common_sources
     controls/icommandmenuitemtarget.h
     controls/icontrollistener.h
     controls/ioptionmenulistener.h
+    controls/itexteditlistener.h
     controls/itextlabellistener.h
     copenglview.cpp
     copenglview.h

vstgui/lib/controls/ctextedit.cpp

@@ -3,6 +3,7 @@
 // distribution and at http://github.com/steinbergmedia/vstgui/LICENSE
 
 #include "ctextedit.h"
+#include "itexteditlistener.h"
 #include "../cframe.h"
 #include "../platform/iplatformframe.h"
 #include <cassert>
@@ -95,6 +96,18 @@ bool CTextEdit::getSecureStyle () const
 	return secureStyle;
 }
 
+//------------------------------------------------------------------------
+void CTextEdit::registerTextEditListener (ITextEditListener* listener)
+{
+	textEditListeners.add (listener);
+}
+
+//------------------------------------------------------------------------
+void CTextEdit::unregisterTextEditListener (ITextEditListener* listener)
+{
+	textEditListeners.remove (listener);
+}
+
 //------------------------------------------------------------------------
 void CTextEdit::setValue (float val)
 {
@@ -336,6 +349,8 @@ void CTextEdit::createPlatformTextEdit ()
 
 	bWasReturnPressed = false;
 	platformControl = getFrame ()->getPlatformFrame ()->createPlatformTextEdit (this);
+	textEditListeners.forEach (
+	    [this] (ITextEditListener* l) { l->onTextEditPlatformControlTookFocus (this); });
 }
 
 //------------------------------------------------------------------------
@@ -368,11 +383,13 @@ void CTextEdit::looseFocus ()
 
 	auto _platformControl = platformControl;
 	platformControl = nullptr;
-
 	updateText (_platformControl);
 
 	_platformControl = nullptr;
 
+	textEditListeners.forEach (
+	    [this] (ITextEditListener* l) { l->onTextEditPlatformControlLostFocus (this); });
+
 	// if you want to destroy the text edit do it with the loose focus message
 	CView* receiver = getParentView () ? getParentView () : getFrame ();
 	while (receiver)
@@ -402,4 +419,3 @@ void CTextEdit::updateText (IPlatformTextEdit* pte)
 }
 
 } // VSTGUI
-

vstgui/lib/controls/ctextedit.h

@@ -5,6 +5,7 @@
 #pragma once
 
 #include "ctextlabel.h"
+#include "../dispatchlist.h"
 #include "../platform/iplatformtextedit.h"
 #include <functional>
 
@@ -60,6 +61,9 @@ class CTextEdit : public CTextLabel, public IPlatformTextEditCallback
 
 	virtual void setPlaceholderString (const UTF8String& str);
 	const UTF8String& getPlaceholderString () const { return placeholderString; }
+
+	void registerTextEditListener (ITextEditListener* listener);
+	void unregisterTextEditListener (ITextEditListener* listener);
 	//@}
 
 	// overrides
@@ -112,6 +116,7 @@ class CTextEdit : public CTextLabel, public IPlatformTextEditCallback
 	bool secureStyle {false};
 	mutable SharedPointer<CFontDesc> platformFont;
 	UTF8String placeholderString;
+	DispatchList<ITextEditListener*> textEditListeners;
 };
 
 } // VSTGUI

vstgui/lib/controls/itexteditlistener.h

@@ -0,0 +1,33 @@
+// This file is part of VSTGUI. It is subject to the license terms
+// in the LICENSE file found in the top-level directory of this
+// distribution and at http://github.com/steinbergmedia/vstgui/LICENSE
+
+#pragma once
+
+#include "../vstguifwd.h"
+
+namespace VSTGUI {
+
+//------------------------------------------------------------------------
+/** Listener for a text edit
+ *	@ingroup new_in_4_10
+ */
+class ITextEditListener
+{
+public:
+	/** called when the native platform text edit control was created and started to listen for keyboard input. */
+	virtual void onTextEditPlatformControlTookFocus (CTextEdit* textEdit) = 0;
+	/** called when the natvie platform text edit control is going to be destroyed. */
+	virtual void onTextEditPlatformControlLostFocus (CTextEdit* textEdit) = 0;
+};
+
+//------------------------------------------------------------------------
+class TextEditListenerAdapter : public ITextEditListener
+{
+public:
+	void onTextEditPlatformControlTookFocus (CTextEdit* textEdit) override {}
+	void onTextEditPlatformControlLostFocus (CTextEdit* textEdit) override {}
+};
+
+//------------------------------------------------------------------------
+} // VSTGUI

vstgui/lib/vstguifwd.h

@@ -155,6 +155,7 @@ class IDraggingSession;
 class IDropTarget;
 class ICommandMenuItemTarget;
 class IOptionMenuListener;
+class ITextEditListener;
 class ITextLabelListener;
 class IListControlDrawer;
 class IListControlConfigurator;