add changing state for Send button in chat when msg size exceeds allowed size (Patch from Phenom)

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@7438 b45a01b8-16f6-495d-af2f-9b41ad6348cc

libretroshare/src/retroshare/rsmsgs.h

@@ -384,6 +384,7 @@ virtual int     getPrivateChatQueueCount(bool incoming) = 0;
 virtual	bool   getPrivateChatQueueIds(bool incoming, std::list<RsPeerId> &ids) = 0;
 virtual	bool   getPrivateChatQueue(bool incoming, const RsPeerId& id, std::list<ChatInfo> &chats) = 0;
 virtual	bool   clearPrivateChatQueue(bool incoming, const RsPeerId& id) = 0;
+virtual int    getMaxMessageSecuritySize() = 0;
 
 virtual void   sendStatusString(const RsPeerId& id,const std::string& status_string) = 0 ;
 virtual void   sendGroupChatStatusString(const std::string& status_string) = 0 ;

libretroshare/src/rsserver/p3msgs.cc

@@ -252,6 +252,11 @@ bool	p3Msgs::clearPrivateChatQueue(bool incoming, const RsPeerId& id)
 	return mChatSrv->clearPrivateChatQueue(incoming, id);
 }
 
+int	p3Msgs::getMaxMessageSecuritySize()
+{
+	return mChatSrv->getMaxMessageSecuritySize();
+}
+
 void p3Msgs::getOwnAvatarData(unsigned char *& data,int& size)
 {
 	mChatSrv->getOwnAvatarJpegData(data,size) ;

libretroshare/src/rsserver/p3msgs.h

@@ -158,6 +158,11 @@ class p3Msgs: public RsMsgs
 	   */
 	  virtual	bool	clearPrivateChatQueue(bool incoming, const RsPeerId& id);
 
+	  /*!
+	   * Return the max message size for security forwarding
+	   */
+	  virtual int getMaxMessageSecuritySize();
+
 	  /*!
 	   * sends immediate status string to a specific peer, e.g. in a private chat
 	   * @param peer_id peer to send status string to

libretroshare/src/services/p3chatservice.cc

@@ -82,6 +82,7 @@ static const uint32_t MAX_AVATAR_JPEG_SIZE              = 32767; // Maximum size
 static const uint32_t MAX_ALLOWED_LOBBIES_IN_LIST_WARNING = 50 ;
 static const uint32_t MAX_MESSAGES_PER_SECONDS_NUMBER     =  5 ; // max number of messages from a given peer in a window for duration below
 static const uint32_t MAX_MESSAGES_PER_SECONDS_PERIOD     = 10 ; // duration window for max number of messages before messages get dropped.
+static const uint32_t MAX_MESSAGE_SECURITY_SIZE           = 6000 ; // Max message size to forward other friends
 
 p3ChatService::p3ChatService(p3ServiceControl *sc,p3IdService *pids, p3LinkMgr *lm, p3HistoryMgr *historyMgr)
 	:p3Service(), p3Config(), mChatMtx("p3ChatService"), mIdService(pids),mServiceCtrl(sc), mLinkMgr(lm) , mHistoryMgr(historyMgr)
@@ -1141,12 +1142,22 @@ void p3ChatService::handleRecvChatAvatarItem(RsChatAvatarItem *ca)
 	RsServer::notify()->notifyPeerHasNewAvatar(ca->PeerId().toStdString()) ;
 }
 
+int p3ChatService::getMaxMessageSecuritySize()
+{
+	return MAX_MESSAGE_SECURITY_SIZE;
+}
+
 bool p3ChatService::checkForMessageSecurity(RsChatMsgItem *ci)
 {
 	// Remove too big messages
-	if (ci->message.length() > 6000 && (ci->chatFlags & RS_CHAT_FLAG_LOBBY))
+	if (ci->message.length() > MAX_MESSAGE_SECURITY_SIZE && (ci->chatFlags & RS_CHAT_FLAG_LOBBY))
 	{
-		ci->message = "**** Security warning: Message bigger than 6000 characters, forwarded to you by ";
+		std::ostringstream os;
+		os << getMaxMessageSecuritySize();
+
+		ci->message = "**** Security warning: Message bigger than ";
+		ci->message += os.str();
+		ci->message += " characters, forwarded to you by ";
 		ci->message += rsPeers->getPeerName(ci->PeerId());
 		ci->message += ", dropped. ****";
 		return false;

libretroshare/src/services/p3chatservice.h

@@ -160,6 +160,11 @@ class p3ChatService: public p3Service, public p3Config, public pqiServiceMonitor
 		 */
 		bool getPrivateChatQueue(bool incoming, const RsPeerId &id, std::list<ChatInfo> &chats);
 
+		/*!
+		 * Return the max message size for security forwarding
+		 */
+		static int getMaxMessageSecuritySize();
+
 		/*!
 		 * Checks message security, especially remove billion laughs attacks
 		 */

retroshare-gui/src/gui/chat/ChatWidget.cpp

@@ -131,6 +131,7 @@ ChatWidget::ChatWidget(QWidget *parent) :
 	connect(ui->chatTextEdit, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(contextMenu(QPoint)));
 	// reset text and color after removing all characters from the QTextEdit and after calling QTextEdit::clear
 	connect(ui->chatTextEdit, SIGNAL(currentCharFormatChanged(QTextCharFormat)), this, SLOT(chatCharFormatChanged()));
+	connect(ui->chatTextEdit, SIGNAL(textChanged()), this, SLOT(updateLenOfChatTextEdit()));
 
 	ui->infoFrame->setVisible(false);
 	ui->statusMessageLabel->hide();
@@ -837,8 +838,27 @@ void ChatWidget::updateStatusTyping()
 	}
 }
 
+void ChatWidget::updateLenOfChatTextEdit()
+{
+	QTextEdit *chatWidget = ui->chatTextEdit;
+	QString text;
+	RsHtml::optimizeHtml(chatWidget, text);
+	std::wstring msg = text.toStdWString();
+	bool msgToLarge = (msg.length()>=size_t(rsMsgs->getMaxMessageSecuritySize()));
+
+	ui->sendButton->setEnabled(!msgToLarge);
+	text = tr("%1This message counts %2 characters.").arg(msgToLarge?tr("Warning: "):"").arg(msg.length());
+	ui->sendButton->setToolTip(text);
+	ui->chatTextEdit->setToolTip(msgToLarge?text:"");
+}
+
 void ChatWidget::sendChat()
 {
+	if (!ui->sendButton->isEnabled()){
+		//Something block sending
+		return;
+	}
+
 	QTextEdit *chatWidget = ui->chatTextEdit;
 
 	if (chatWidget->toPlainText().isEmpty()) {

retroshare-gui/src/gui/chat/ChatWidget.h

@@ -152,6 +152,7 @@ private slots:
 	void resetFont();
 	void setFont();
 
+	void updateLenOfChatTextEdit();
 	void sendChat();
 
 	void updatePeersCustomStateString(const QString& peer_id, const QString& status_string) ;

retroshare-gui/src/gui/images.qrc

@@ -689,5 +689,8 @@
         <file>images/library_add.png</file>
         <file>images/library64.png</file>
         <file>images/library16.png</file>
+        <file>images/btn_red_pressed.png</file>
+        <file>images/btn_red_hover.png</file>
+        <file>images/btn_red.png</file>
     </qresource>
 </RCC>

retroshare-gui/src/gui/qss/stylesheet/Standard.qss

@@ -208,8 +208,10 @@ ChatWidget QPushButton#sendButton:hover {
 
 ChatWidget QPushButton#sendButton:pressed {
 	border-image: url(:/images/btn_green_pressed.png) 4;
+}
 
-
+ChatWidget QPushButton#sendButton:disabled {
+	border-image: url(:/images/btn_red.png) 4;
 }
 
 PopupChatWindow QToolBar#chattoolBar{