A self-contained chat widget. More...

#include <SimpleChatWidget.h>

Inheritance diagram for SimpleChatWidget:

[legend]

Public Member Functions
	SimpleChatWidget (SimpleChatServer &server, Wt::WContainerWidget *parent=0)
	Create a chat widget that will connect to the given server. More...

	~SimpleChatWidget ()
	Delete a chat widget. More...

void	connect ()

void	disconnect ()

void	letLogin ()
	Show a simple login screen. More...

bool	startChat (const Wt::WString &user)
	Start a chat for the given user. More...

void	logout ()

SimpleChatServer &	server ()

int	userCount ()

const Wt::WString &	userName () const

Public Member Functions inherited from Wt::WContainerWidget
	WContainerWidget (WContainerWidget *parent=0)

	~WContainerWidget ()

void	setLayout (WLayout *layout)

void	setLayout (WLayout *layout, WFlags< AlignmentFlag > alignment)

WLayout *	layout ()

virtual void	addWidget (WWidget *widget)

virtual void	insertBefore (WWidget widget, WWidget before)

virtual void	insertWidget (int index, WWidget *widget)

virtual void	removeWidget (WWidget *widget)

virtual void	clear ()

virtual int	indexOf (WWidget *widget) const

virtual WWidget *	widget (int index) const

virtual int	count () const

void	setContentAlignment (WFlags< AlignmentFlag > contentAlignment)

void	setPadding (const WLength &padding, WFlags< Side > sides=All)

WLength	padding (Side side) const

WFlags< AlignmentFlag >	contentAlignment () const

void	setOverflow (Overflow overflow, WFlags< Orientation > orientation=(Horizontal\|Vertical))

void	setList (bool list, bool ordered=false)

bool	isList () const

bool	isUnorderedList () const

bool	isOrderedList () const

EventSignal< WScrollEvent > &	scrolled ()

int	scrollTop () const

int	scrollLeft () const

Public Member Functions inherited from Wt::WInteractWidget
	WInteractWidget (WContainerWidget *parent=0)

EventSignal< WKeyEvent > &	keyWentDown ()

EventSignal< WKeyEvent > &	keyPressed ()

EventSignal< WKeyEvent > &	keyWentUp ()

EventSignal &	enterPressed ()

EventSignal &	escapePressed ()

EventSignal< WMouseEvent > &	clicked ()

EventSignal< WMouseEvent > &	doubleClicked ()

EventSignal< WMouseEvent > &	mouseWentDown ()

EventSignal< WMouseEvent > &	mouseWentUp ()

EventSignal< WMouseEvent > &	mouseWentOut ()

EventSignal< WMouseEvent > &	mouseWentOver ()

EventSignal< WMouseEvent > &	mouseMoved ()

EventSignal< WMouseEvent > &	mouseDragged ()

EventSignal< WMouseEvent > &	mouseWheel ()

EventSignal< WTouchEvent > &	touchStarted ()

EventSignal< WTouchEvent > &	touchEnded ()

EventSignal< WTouchEvent > &	touchMoved ()

EventSignal< WGestureEvent > &	gestureStarted ()

EventSignal< WGestureEvent > &	gestureChanged ()

EventSignal< WGestureEvent > &	gestureEnded ()

void	setDraggable (const std::string &mimeType, WWidget dragWidget=0, bool isDragWidgetOnly=false, WObject sourceWidget=0)

void	unsetDraggable ()

void	setMouseOverDelay (int delay)

int	mouseOverDelay () const

virtual void	setPopup (bool popup)

virtual void	load ()

virtual bool	isEnabled () const

Public Member Functions inherited from Wt::WWebWidget
	WWebWidget (WContainerWidget *parent=0)

virtual void	setPositionScheme (PositionScheme scheme)

virtual PositionScheme	positionScheme () const

virtual void	setOffsets (const WLength &offset, WFlags< Side > sides=All)

virtual WLength	offset (Side s) const

virtual void	resize (const WLength &width, const WLength &height)

virtual WLength	width () const

virtual WLength	height () const

virtual void	setMinimumSize (const WLength &width, const WLength &height)

virtual WLength	minimumWidth () const

virtual WLength	minimumHeight () const

virtual void	setMaximumSize (const WLength &width, const WLength &height)

virtual WLength	maximumWidth () const

virtual WLength	maximumHeight () const

virtual void	setLineHeight (const WLength &height)

virtual WLength	lineHeight () const

virtual void	setFloatSide (Side s)

virtual Side	floatSide () const

virtual void	setClearSides (WFlags< Side > sides)

virtual WFlags< Side >	clearSides () const

virtual void	setMargin (const WLength &margin, WFlags< Side > sides=All)

virtual WLength	margin (Side side) const

virtual void	setHiddenKeepsGeometry (bool enabled)

virtual bool	hiddenKeepsGeometry () const

virtual void	setHidden (bool hidden, const WAnimation &animation=WAnimation())

virtual bool	isHidden () const

virtual bool	isVisible () const

virtual void	setDisabled (bool disabled)

virtual bool	isDisabled () const

virtual bool	isPopup () const

virtual void	setInline (bool isInline)

virtual bool	isInline () const

virtual void	setDecorationStyle (const WCssDecorationStyle &style)

virtual WCssDecorationStyle &	decorationStyle ()

virtual void	setStyleClass (const WString &styleClass)

virtual WString	styleClass () const

virtual void	addStyleClass (const WString &styleClass, bool force=false)

virtual void	removeStyleClass (const WString &styleClass, bool force=false)

virtual bool	hasStyleClass (const WString &styleClass) const

virtual void	setVerticalAlignment (AlignmentFlag alignment, const WLength &length=WLength())

virtual AlignmentFlag	verticalAlignment () const

virtual WLength	verticalAlignmentLength () const

virtual void	setToolTip (const WString &text, TextFormat textFormat=PlainText)

virtual void	setDeferredToolTip (bool enable, TextFormat textFormat=PlainText)

virtual WString	toolTip () const

virtual void	refresh ()

virtual void	setAttributeValue (const std::string &name, const WString &value)

virtual WString	attributeValue (const std::string &name) const

virtual void	setJavaScriptMember (const std::string &name, const std::string &value)

virtual std::string	javaScriptMember (const std::string &name) const

virtual void	callJavaScriptMember (const std::string &name, const std::string &args)

virtual bool	loaded () const

virtual void	setId (const std::string &id)

virtual WWidget *	find (const std::string &name)

virtual WWidget *	findById (const std::string &id)

virtual void	setSelectable (bool selectable)

virtual void	doJavaScript (const std::string &javascript)

virtual const std::string	id () const

void	setLoadLaterWhenInvisible (bool)

std::string	htmlTagName () const

void	setHtmlTagName (const std::string &tag)

const std::vector< WWidget * > &	children () const

Signal &	childrenChanged ()

virtual void	setCanReceiveFocus (bool enabled)

virtual bool	canReceiveFocus () const

virtual bool	setFirstFocus ()

virtual void	setFocus (bool focus)

virtual bool	hasFocus () const

virtual void	setTabIndex (int index)

virtual int	tabIndex () const

EventSignal &	blurred ()

EventSignal &	focussed ()

virtual bool	scrollVisibilityEnabled () const WT_CXX11ONLY(finaloverride)

virtual void	setScrollVisibilityEnabled (bool enabled) WT_CXX11ONLY(finaloverride)

virtual int	scrollVisibilityMargin () const WT_CXX11ONLY(finaloverride)

virtual void	setScrollVisibilityMargin (int margin) WT_CXX11ONLY(finaloverride)

virtual Signal< bool > &	scrollVisibilityChanged () WT_CXX11ONLY(finaloverride)

virtual bool	isScrollVisible () const WT_CXX11ONLY(finaloverride)

virtual void	setThemeStyleEnabled (bool enabled)

virtual bool	isThemeStyleEnabled () const

Public Member Functions inherited from Wt::WWidget
virtual	~WWidget ()

WWidget *	parent () const

virtual void	removeChild (WObject *child)

void	setWidth (const WLength &width)

void	setHeight (const WLength &height)

virtual void	positionAt (const WWidget *widget, Orientation orientation=Vertical)

virtual void	toggleStyleClass (const WString &styleClass, bool add, bool force=false)

std::string	jsRef () const

void	setFocus ()

virtual void	acceptDrops (const std::string &mimeType, const WString &hoverStyleClass=WString())

virtual void	stopAcceptDrops (const std::string &mimeType)

virtual void	setObjectName (const std::string &name)

virtual void	htmlText (std::ostream &out)

bool	isRendered () const

void	hide ()

void	animateHide (const WAnimation &animation)

void	show ()

void	animateShow (const WAnimation &animation)

void	enable ()

void	disable ()

bool	layoutSizeAware () const

Public Member Functions inherited from Wt::WObject
	WObject (WObject *parent=0)

virtual	~WObject ()

virtual std::string	objectName () const

void	resetLearnedSlots ()

void	resetLearnedSlot (void(T::*method)())

WStatelessSlot *	implementStateless (void(T::*method)())

WStatelessSlot *	implementStateless (void(T::method)(), void(T::undoMethod)())

void	isNotStateless ()

WStatelessSlot *	implementJavaScript (void(T::*method)(), const std::string &jsCode)

void	addChild (WObject *child)

const std::vector< WObject * > &	children () const

WObject *	parent () const

Protected Member Functions
virtual void	createLayout (Wt::WWidget messages, Wt::WWidget userList, Wt::WWidget messageEdit, Wt::WWidget sendButton, Wt::WWidget *logoutButton)

virtual void	updateUsers ()

virtual void	newMessage ()

virtual void	render (Wt::WFlags< Wt::RenderFlag > flags)

bool	loggedIn () const

Protected Member Functions inherited from Wt::WInteractWidget
virtual void	propagateSetEnabled (bool enabled)

Protected Member Functions inherited from Wt::WWebWidget
virtual void	enableAjax ()

virtual WStatelessSlot *	getStateless (Method method)

Protected Member Functions inherited from Wt::WWidget
void	setLayoutSizeAware (bool sizeAware)

virtual void	layoutSizeChanged (int width, int height)

	WWidget (WContainerWidget *parent=0)

virtual void	dropEvent (WDropEvent dropEvent)

virtual int	boxPadding (Orientation orientation) const

virtual int	boxBorder (Orientation orientation) const

void	scheduleRender (WFlags< RepaintFlag > flags=0)

Private Types
typedef std::map< Wt::WString, bool >	UserMap

Private Member Functions
void	login ()

void	changeName (const Wt::WString &name)

void	send ()

void	updateUser ()

void	processChatEvent (const ChatEvent &event)

Private Attributes
UserMap	users_

SimpleChatServer &	server_

bool	loggedIn_

Wt::JSlot	clearInput_

Wt::WString	user_

Wt::WLineEdit *	userNameEdit_

Wt::WText *	statusMsg_

Wt::WContainerWidget *	messages_

Wt::WTextArea *	messageEdit_

Wt::WPushButton *	sendButton_

Wt::WContainerWidget *	userList_

Wt::WSound *	messageReceived_

Additional Inherited Members
Public Types inherited from Wt::WContainerWidget
enum	Overflow

Public Types inherited from Wt::WObject
typedef void(WObject::*	Method) ()

Static Public Member Functions inherited from Wt::WWebWidget
static WString	escapeText (const WString &text, bool newlinesToo=false)

static std::string &	escapeText (std::string &text, bool newlinestoo=false)

static bool	removeScript (WString &text)

static std::string	jsStringLiteral (const std::string &v, char delimiter= '\'')

Static Public Member Functions inherited from Wt::WWidget
static WString	tr (const char *key)

Public Attributes inherited from Wt::WContainerWidget
	OverflowVisible

	OverflowAuto

	OverflowHidden

	OverflowScroll

Static Protected Member Functions inherited from Wt::WObject
static WObject *	sender ()

Detailed Description

A self-contained chat widget.

Definition at line 34 of file SimpleChatWidget.h.

Member Typedef Documentation

typedef std::map<Wt::WString, bool> SimpleChatWidget::UserMap

private

Definition at line 82 of file SimpleChatWidget.h.

Constructor & Destructor Documentation

SimpleChatWidget::SimpleChatWidget	(	SimpleChatServer &	server,
		Wt::WContainerWidget *	parent = `0`
	)

Create a chat widget that will connect to the given server.

Definition at line 28 of file SimpleChatWidget.C.

   : WContainerWidget(parent),
     server_(server),
     loggedIn_(false),
     userList_(0),
     messageReceived_(0)
 {
   user_ = server_.suggestGuest();
   letLogin();
 }

SimpleChatWidget::~SimpleChatWidget ( )

Delete a chat widget.

Definition at line 40 of file SimpleChatWidget.C.

 {
   delete messageReceived_;
   logout();
 }

Member Function Documentation

void SimpleChatWidget::changeName ( const Wt::WString & name )

private

Definition at line 305 of file SimpleChatWidget.C.

 {
   if (!name.empty()) {
     if (server_.changeName(user_, name))
       user_ = name;
   }
 }

void SimpleChatWidget::connect ( )

Definition at line 46 of file SimpleChatWidget.C.

 {
   if (server_.connect
       (this, boost::bind(&SimpleChatWidget::processChatEvent, this, _1)))
     Wt::WApplication::instance()->enableUpdates(true);
 }

void SimpleChatWidget::createLayout	(	Wt::WWidget *	messages,
		Wt::WWidget *	userList,
		Wt::WWidget *	messageEdit,
		Wt::WWidget *	sendButton,
		Wt::WWidget *	logoutButton
	)

protectedvirtual

Reimplemented in PopupChatWidget.

Definition at line 108 of file SimpleChatWidget.C.

 {
   /*
    * Create a vertical layout, which will hold 3 rows,
    * organized like this:
    *
    * WVBoxLayout
    * --------------------------------------------
    * | nested WHBoxLayout (vertical stretch=1)  |
    * |                              |           |
    * |  messages                    | userList  |
    * |   (horizontal stretch=1)     |           |
    * |                              |           |
    * --------------------------------------------
    * | message edit area                        |
    * --------------------------------------------
    * | WHBoxLayout                              |
    * | send | logout                            |
    * --------------------------------------------
    */
   WVBoxLayout *vLayout = new WVBoxLayout();
 
   // Create a horizontal layout for the messages | userslist.
   WHBoxLayout *hLayout = new WHBoxLayout();
 
   // Add widget to horizontal layout with stretch = 1
   hLayout->addWidget(messages, 1);
   messages->setStyleClass("chat-msgs");
 
     // Add another widget to horizontal layout with stretch = 0
   hLayout->addWidget(userList);
   userList->setStyleClass("chat-users");
 
   hLayout->setResizable(0, true);
 
   // Add nested layout to vertical layout with stretch = 1
   vLayout->addLayout(hLayout, 1);
 
   // Add widget to vertical layout with stretch = 0
   vLayout->addWidget(messageEdit);
   messageEdit->setStyleClass("chat-noedit");
 
   // Create a horizontal layout for the buttons.
   hLayout = new WHBoxLayout();
 
   // Add button to horizontal layout with stretch = 0
   hLayout->addWidget(sendButton);
 
   // Add button to horizontal layout with stretch = 0
   hLayout->addWidget(logoutButton);
 
   // Add nested layout to vertical layout with stretch = 0
   vLayout->addLayout(hLayout, 0, AlignLeft);
 
   setLayout(vLayout);
 }

void SimpleChatWidget::disconnect ( )

Definition at line 53 of file SimpleChatWidget.C.

 {
   if (server_.disconnect(this))
     Wt::WApplication::instance()->enableUpdates(false);
 }

void SimpleChatWidget::letLogin ( )

Show a simple login screen.

Definition at line 59 of file SimpleChatWidget.C.

 {
   clear();
 
   WVBoxLayout *vLayout = new WVBoxLayout();
   setLayout(vLayout);
 
   WHBoxLayout *hLayout = new WHBoxLayout();
   vLayout->addLayout(hLayout, 0, AlignTop | AlignLeft);
 
   hLayout->addWidget(new WLabel("User name:"), 0, AlignMiddle);
   hLayout->addWidget(userNameEdit_ = new WLineEdit(user_), 0, AlignMiddle);
   userNameEdit_->setFocus();
 
   WPushButton *b = new WPushButton("Login");
   hLayout->addWidget(b, 0, AlignMiddle);
 
   b->clicked().connect(this, &SimpleChatWidget::login);
   userNameEdit_->enterPressed().connect(this, &SimpleChatWidget::login);
 
   vLayout->addWidget(statusMsg_ = new WText());
   statusMsg_->setTextFormat(PlainText);
 }

bool SimpleChatWidget::loggedIn ( ) const

protected

Definition at line 167 of file SimpleChatWidget.C.

 {
   return loggedIn_;
 }

void SimpleChatWidget::login ( )

private

Definition at line 83 of file SimpleChatWidget.C.

 {
   if (!loggedIn()) {
     WString name = userNameEdit_->text();
 
     if (!messageReceived_)
       messageReceived_ = new WSound("sounds/message_received.mp3");
 
     if (!startChat(name))
       statusMsg_->setText("Sorry, name '" + escapeText(name) +
                           "' is already taken.");
   }
 }

void SimpleChatWidget::logout ( )

Definition at line 97 of file SimpleChatWidget.C.

 {
   if (loggedIn()) {
     loggedIn_ = false;
     server_.logout(user_);
     disconnect();
 
     letLogin();
   }
 }

void SimpleChatWidget::newMessage ( )

protectedvirtual

Reimplemented in PopupChatWidget.

Definition at line 349 of file SimpleChatWidget.C.

350 { }

void SimpleChatWidget::processChatEvent ( const ChatEvent & event )

private

Definition at line 358 of file SimpleChatWidget.C.

 {
   WApplication *app = WApplication::instance();
 
   /*
    * This is where the "server-push" happens. The chat server posts to this
    * event from other sessions, see SimpleChatServer::postChatEvent()
    */
 
   /*
    * Format and append the line to the conversation.
    *
    * This is also the step where the automatic XSS filtering will kick in:
    * - if another user tried to pass on some JavaScript, it is filtered away.
    * - if another user did not provide valid XHTML, the text is automatically
    *   interpreted as PlainText
    */
 
   /*
    * If it is not a plain message, also update the user list.
    */
   if (event.type() != ChatEvent::Message) {
     if (event.type() == ChatEvent::Rename && event.user() == user_)
       user_ = event.data();
 
     updateUsers();
   }
 
   /*
    * This is the server call: we (schedule to) propagate the updated UI to
    * the client.
    *
    * This schedules an update and returns immediately
    */
   app->triggerUpdate();
 
   newMessage();
 
   /*
    * Anything else doesn't matter if we are not logged in.
    */
   if (!loggedIn())
     return;
 
   bool display = event.type() != ChatEvent::Message
     || !userList_
     || (users_.find(event.user()) != users_.end() && users_[event.user()]);
 
   if (display) {
     WText *w = new WText(messages_);
 
     /*
      * If it fails, it is because the content wasn't valid XHTML
      */
     if (!w->setText(event.formattedHTML(user_, XHTMLText))) {
       w->setText(event.formattedHTML(user_, PlainText));
       w->setTextFormat(XHTMLText);
     }
 
     w->setInline(false);
     w->setStyleClass("chat-msg");
 
     /*
      * Leave no more than 100 messages in the back-log
      */
     if (messages_->count() > 100)
       delete messages_->children()[0];
 
     /*
      * Little javascript trick to make sure we scroll along with new content
      */
     app->doJavaScript(messages_->jsRef() + ".scrollTop += "
                        + messages_->jsRef() + ".scrollHeight;");
 
     /* If this message belongs to another user, play a received sound */
     if (event.user() != user_ && messageReceived_)
       messageReceived_->play();
   }
 }

void SimpleChatWidget::render ( Wt::WFlags< Wt::RenderFlag > flags )

protectedvirtual

Reimplemented from Wt::WWebWidget.

Definition at line 172 of file SimpleChatWidget.C.

 {
   if (flags & RenderFull) {
     if (loggedIn()) {
       /* Handle a page refresh correctly */
       messageEdit_->setText(WString::Empty);
       doJavaScript("setTimeout(function() { "
                    + messages_->jsRef() + ".scrollTop += "
                    + messages_->jsRef() + ".scrollHeight;}, 0);");
     }
   }
 
   WContainerWidget::render(flags);
 }

void SimpleChatWidget::send ( )

private

Definition at line 313 of file SimpleChatWidget.C.

 {
   if (!messageEdit_->text().empty())
     server_.sendMessage(user_, messageEdit_->text());
 }

SimpleChatServer& SimpleChatWidget::server ( )

inline

Definition at line 62 of file SimpleChatWidget.h.

62 { return server_; }

SimpleChatWidget::server_

SimpleChatServer & server_

Definition: SimpleChatWidget.h:85

bool SimpleChatWidget::startChat ( const Wt::WString & user )

Start a chat for the given user.

Returns false if the user could not login.

Definition at line 187 of file SimpleChatWidget.C.

 {
   /*
    * When logging in, we pass our processChatEvent method as the function that
    * is used to indicate a new chat event for this user.
    */
   if (server_.login(user)) {
     loggedIn_ = true;
     connect();
 
     user_ = user;    
 
     clear();
     userNameEdit_ = 0;
 
     messages_ = new WContainerWidget();
     userList_ = new WContainerWidget();
     messageEdit_ = new WTextArea();
     messageEdit_->setRows(2);
     messageEdit_->setFocus();
 
     // Display scroll bars if contents overflows
     messages_->setOverflow(WContainerWidget::OverflowAuto);
     userList_->setOverflow(WContainerWidget::OverflowAuto);
 
     sendButton_ = new WPushButton("Send");
     WPushButton *logoutButton = new WPushButton("Logout");
 
     createLayout(messages_, userList_, messageEdit_, sendButton_, logoutButton);
 
 
     /*
      * Connect event handlers:
      *  - click on button
      *  - enter in text area
      *
      * We will clear the input field using a small custom client-side
      * JavaScript invocation.
      */
 
     // Create a JavaScript 'slot' (JSlot). The JavaScript slot always takes
     // 2 arguments: the originator of the event (in our case the
     // button or text area), and the JavaScript event object.
     clearInput_.setJavaScript
       ("function(o, e) { setTimeout(function() {"
        "" + messageEdit_->jsRef() + ".value='';"
        "}, 0); }");
 
     /*
      * Set the connection monitor
      *
      * The connection monitor is a javascript monitor that will
      * nootify the given object by calling the onChange method to
      * inform of connection change (use of websockets, connection
      * online/offline) Here we just disable the TextEdit when we are
      * offline and enable it once we're back online
      */
     WApplication::instance()->setConnectionMonitor(
                 "window.monitor={ "
                 "'onChange':function(type, newV) {"
                   "var connected = window.monitor.status.connectionStatus != 0;"
                   "if(connected) {"
                         + messageEdit_->jsRef() + ".disabled=false;"
                         + messageEdit_->jsRef() + ".placeholder='';"
                   "} else { "
                         + messageEdit_->jsRef() + ".disabled=true;"
                         + messageEdit_->jsRef() + ".placeholder='connection lost';"
                   "}"
                 "}"
                 "}"
                 );
 
     // Bind the C++ and JavaScript event handlers.
     sendButton_->clicked().connect(this, &SimpleChatWidget::send);
     messageEdit_->enterPressed().connect(this, &SimpleChatWidget::send);
     sendButton_->clicked().connect(clearInput_);
     messageEdit_->enterPressed().connect(clearInput_);
     sendButton_->clicked().connect((WWidget *)messageEdit_,
                                    &WWidget::setFocus);
     messageEdit_->enterPressed().connect((WWidget *)messageEdit_,
                                          &WWidget::setFocus);
 
     // Prevent the enter from generating a new line, which is its default
     // action
     messageEdit_->enterPressed().preventDefaultAction();
 
     logoutButton->clicked().connect(this, &SimpleChatWidget::logout);
 
     WInPlaceEdit *nameEdit = new WInPlaceEdit();
     nameEdit->addStyleClass("name-edit");
     nameEdit->setButtonsEnabled(false);
     nameEdit->setText(user_);
     nameEdit->valueChanged().connect(this, &SimpleChatWidget::changeName);
 
     WTemplate *joinMsg = new WTemplate(tr("join-msg.template"), messages_);
     joinMsg->bindWidget("name", nameEdit);
     joinMsg->setStyleClass("chat-msg");
 
     if (!userList_->parent()) {
       delete userList_;
       userList_ = 0;
     }
 
     if (!sendButton_->parent()) {
       delete sendButton_;
       sendButton_ = 0;
     }
 
     if (!logoutButton->parent())
       delete logoutButton;
 
     updateUsers();
     
     return true;
   } else
     return false;
 }

void SimpleChatWidget::updateUser ( )

private

Definition at line 352 of file SimpleChatWidget.C.

 {
   WCheckBox *b = dynamic_cast<WCheckBox *>(sender());
   users_[b->text()] = b->isChecked();
 }

void SimpleChatWidget::updateUsers ( )

protectedvirtual

Reimplemented in PopupChatWidget.

Definition at line 319 of file SimpleChatWidget.C.

 {
   if (userList_) {
     userList_->clear();
 
     SimpleChatServer::UserSet users = server_.users();
 
     UserMap oldUsers = users_;
     users_.clear();
 
     for (SimpleChatServer::UserSet::iterator i = users.begin();
          i != users.end(); ++i) {
       WCheckBox *w = new WCheckBox(escapeText(*i), userList_);
       w->setInline(false);
 
       UserMap::const_iterator j = oldUsers.find(*i);
       if (j != oldUsers.end())
         w->setChecked(j->second);
       else
         w->setChecked(true);
 
       users_[*i] = w->isChecked();
       w->changed().connect(this, &SimpleChatWidget::updateUser);
 
       if (*i == user_)
         w->setStyleClass("chat-self");
     }
   }
 }

int SimpleChatWidget::userCount ( )

inline

Definition at line 64 of file SimpleChatWidget.h.

64 { return users_.size(); }

SimpleChatWidget::users_

UserMap users_

Definition: SimpleChatWidget.h:83

const Wt::WString& SimpleChatWidget::userName ( ) const

inline

Definition at line 66 of file SimpleChatWidget.h.

66 { return user_; }

SimpleChatWidget::user_

Wt::WString user_

Definition: SimpleChatWidget.h:90

Member Data Documentation

Wt::JSlot SimpleChatWidget::clearInput_

private

Definition at line 88 of file SimpleChatWidget.h.

bool SimpleChatWidget::loggedIn_

private

Definition at line 86 of file SimpleChatWidget.h.

Wt::WTextArea* SimpleChatWidget::messageEdit_

private

Definition at line 96 of file SimpleChatWidget.h.

Wt::WSound* SimpleChatWidget::messageReceived_

private

Definition at line 100 of file SimpleChatWidget.h.

Wt::WContainerWidget* SimpleChatWidget::messages_

private

Definition at line 95 of file SimpleChatWidget.h.

Wt::WPushButton* SimpleChatWidget::sendButton_

private

Definition at line 97 of file SimpleChatWidget.h.

SimpleChatServer& SimpleChatWidget::server_

private

Definition at line 85 of file SimpleChatWidget.h.

Wt::WText* SimpleChatWidget::statusMsg_

private

Definition at line 93 of file SimpleChatWidget.h.

Wt::WString SimpleChatWidget::user_

private

Definition at line 90 of file SimpleChatWidget.h.

Wt::WContainerWidget* SimpleChatWidget::userList_

private

Definition at line 98 of file SimpleChatWidget.h.

Wt::WLineEdit* SimpleChatWidget::userNameEdit_

private

Definition at line 92 of file SimpleChatWidget.h.

UserMap SimpleChatWidget::users_

private

Definition at line 83 of file SimpleChatWidget.h.

The documentation for this class was generated from the following files:

/home/roel/project/wt/public-git/wt/examples/simplechat/SimpleChatWidget.h
/home/roel/project/wt/public-git/wt/examples/simplechat/SimpleChatWidget.C

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