webrtc/talk/examples/chat/chatapp.cc
henrike@webrtc.org 28e2075280 Adds trunk/talk folder of revision 359 from libjingles google code to
trunk/talk


git-svn-id: http://webrtc.googlecode.com/svn/trunk@4318 4adac7df-926f-26a2-2b94-8c16560cd09d
2013-07-10 00:45:36 +00:00

252 lines
7.4 KiB
C++

/*
* libjingle
* Copyright 2004--2013, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "talk/examples/chat/chatapp.h"
#include "talk/examples/chat/consoletask.h"
#include "talk/examples/chat/textchatsendtask.h"
#include "talk/examples/chat/textchatreceivetask.h"
#include "talk/xmpp/presenceouttask.h"
#include "talk/xmpp/presencereceivetask.h"
#ifdef WIN32
#define snprintf _snprintf
#endif
ChatApp::ChatApp(buzz::XmppClient* xmpp_client, talk_base::Thread* main_thread)
: xmpp_client_(xmpp_client),
presence_out_task_(NULL),
presence_receive_task_(NULL),
message_send_task_(NULL),
message_received_task_(NULL),
console_task_(new buzz::ConsoleTask(main_thread)),
ui_state_(STATE_BASE) {
xmpp_client_->SignalStateChange.connect(this, &ChatApp::OnStateChange);
console_task_->TextInputHandler.connect(this, &ChatApp::OnConsoleMessage);
console_task_->Start();
}
ChatApp::~ChatApp() {
if (presence_out_task_ != NULL) {
// Check out
BroadcastPresence(away);
}
}
void ChatApp::Quit() {
talk_base::Thread::Current()->Quit();
}
void ChatApp::OnXmppOpen() {
presence_out_task_.reset(new buzz::PresenceOutTask(xmpp_client_));
presence_receive_task_.reset(new buzz::PresenceReceiveTask(xmpp_client_));
presence_receive_task_->PresenceUpdate.connect(this,
&ChatApp::OnPresenceUpdate);
message_send_task_.reset(new buzz::TextChatSendTask(xmpp_client_));
message_received_task_.reset(new buzz::TextChatReceiveTask(xmpp_client_));
message_received_task_->SignalTextChatReceived.connect(
this, &ChatApp::OnTextMessage);
presence_out_task_->Start();
presence_receive_task_->Start();
message_send_task_->Start();
message_received_task_->Start();
}
void ChatApp::BroadcastPresence(PresenceState state) {
buzz::PresenceStatus status;
status.set_jid(xmpp_client_->jid());
status.set_available(state == online);
status.set_show(state == online ? buzz::PresenceStatus::SHOW_ONLINE
: buzz::PresenceStatus::SHOW_AWAY);
presence_out_task_->Send(status);
}
// UI Stuff
static const char* kMenuChoiceQuit = "0";
static const char* kMenuChoiceRoster = "1";
static const char* kMenuChoiceChat = "2";
static const char* kUIStrings[3][2] = {
{kMenuChoiceQuit, "Quit"},
{kMenuChoiceRoster, "Roster"},
{kMenuChoiceChat, "Send"}};
void ChatApp::PrintMenu() {
char buff[128];
int numMenuItems = sizeof(kUIStrings) / sizeof(kUIStrings[0]);
for (int index = 0; index < numMenuItems; ++index) {
snprintf(buff, sizeof(buff), "%s) %s\n", kUIStrings[index][0],
kUIStrings[index][1]);
console_task_->Print(buff);
}
console_task_->Print("choice:");
}
void ChatApp::PrintRoster() {
int index = 0;
for (RosterList::iterator iter = roster_list_.begin();
iter != roster_list_.end(); ++iter) {
const buzz::Jid& jid = iter->second.jid();
console_task_->Print(
"%d: (*) %s@%s [%s] \n",
index++,
jid.node().c_str(),
jid.domain().c_str(),
jid.resource().c_str());
}
}
void ChatApp::PromptJid() {
PrintRoster();
console_task_->Print("choice:");
}
void ChatApp::PromptChatMessage() {
console_task_->Print(":");
}
bool ChatApp::GetRosterItem(int index, buzz::PresenceStatus* status) {
int found_index = 0;
for (RosterList::iterator iter = roster_list_.begin();
iter != roster_list_.end() && found_index <= index; ++iter) {
if (found_index == index) {
*status = iter->second;
return true;
}
found_index++;
}
return false;
}
void ChatApp::HandleBaseInput(const std::string& message) {
if (message == kMenuChoiceQuit) {
Quit();
} else if (message == kMenuChoiceRoster) {
PrintRoster();
} else if (message == kMenuChoiceChat) {
ui_state_ = STATE_PROMPTJID;
PromptJid();
} else if (message == "") {
PrintMenu();
}
}
void ChatApp::HandleJidInput(const std::string& message) {
if (isdigit(message[0])) {
// It's an index-based roster choice.
int index = 0;
buzz::PresenceStatus status;
if (!talk_base::FromString(message, &index) ||
!GetRosterItem(index, &status)) {
// fail, so drop back
ui_state_ = STATE_BASE;
return;
}
chat_dest_jid_ = status.jid();
} else {
// It's an explicit address.
chat_dest_jid_ = buzz::Jid(message.c_str());
}
ui_state_ = STATE_CHATTING;
PromptChatMessage();
}
void ChatApp::HandleChatInput(const std::string& message) {
if (message == "") {
ui_state_ = STATE_BASE;
PrintMenu();
} else {
message_send_task_->Send(chat_dest_jid_, message);
PromptChatMessage();
}
}
// Connection state notifications
void ChatApp::OnStateChange(buzz::XmppEngine::State state) {
switch (state) {
// Nonexistent state
case buzz::XmppEngine::STATE_NONE:
break;
// Nonexistent state
case buzz::XmppEngine::STATE_START:
break;
// Exchanging stream headers, authenticating and so on.
case buzz::XmppEngine::STATE_OPENING:
break;
// Authenticated and bound.
case buzz::XmppEngine::STATE_OPEN:
OnXmppOpen();
BroadcastPresence(online);
PrintMenu();
break;
// Session closed, possibly due to error.
case buzz::XmppEngine::STATE_CLOSED:
break;
}
}
// Presence Notifications
void ChatApp::OnPresenceUpdate(const buzz::PresenceStatus& status) {
if (status.available()) {
roster_list_[status.jid().Str()] = status;
} else {
RosterList::iterator iter = roster_list_.find(status.jid().Str());
if (iter != roster_list_.end()) {
roster_list_.erase(iter);
}
}
}
// Text message handlers
void ChatApp::OnTextMessage(const buzz::Jid& from, const buzz::Jid& to,
const std::string& message) {
console_task_->Print("%s says: %s\n", from.node().c_str(), message.c_str());
}
void ChatApp::OnConsoleMessage(const std::string &message) {
switch (ui_state_) {
case STATE_BASE:
HandleBaseInput(message);
break;
case STATE_PROMPTJID:
HandleJidInput(message);
break;
case STATE_CHATTING:
HandleChatInput(message);
break;
}
}