Chat-O-Matic/application/views/SendTextView.cpp
2021-07-31 20:18:36 -05:00

171 lines
3.5 KiB
C++

/*
* Copyright 2021, Jaidyn Levesque <jadedctrl@teknik.io>
* All rights reserved. Distributed under the terms of the MIT license.
*/
#include "SendTextView.h"
#include <StringList.h>
#include <Window.h>
#include "AppMessages.h"
#include "MainWindow.h"
#include "Server.h"
#include "TheApp.h"
SendTextView::SendTextView(const char* name, ConversationView* convView)
:
BTextView(name),
fConversationView(convView),
fCurrentIndex(0),
fHistoryIndex(0)
{
}
void
SendTextView::KeyDown(const char* bytes, int32 numBytes)
{
int32 modifiers = Window()->CurrentMessage()->GetInt32("modifiers", 0);
if (bytes[0] == B_TAB) {
_AutoComplete();
return;
}
// Reset auto-complete state if user typed/sent something other than tab
fCurrentIndex = 0;
fCurrentWord.SetTo("");
if ((bytes[0] == B_UP_ARROW) && (modifiers == 0)) {
_UpHistory();
return;
}
else if ((bytes[0] == B_DOWN_ARROW) && (modifiers == 0)) {
_DownHistory();
return;
}
if ((bytes[0] == B_ENTER) && (modifiers & B_COMMAND_KEY))
Insert("\n");
else if ((bytes[0] == B_ENTER) && (modifiers == 0)) {
_AppendHistory();
fConversationView->MessageReceived(new BMessage(APP_CHAT));
}
else
BTextView::KeyDown(bytes, numBytes);
}
void
SendTextView::_AutoComplete()
{
if (fConversationView == NULL || fConversationView->GetConversation() == NULL)
return;
BStringList words;
BString text = Text();
text.Split(" ", true, words);
if (words.CountStrings() <= 0)
return;
BString lastWord = words.StringAt(words.CountStrings() - 1);
if (fCurrentWord.IsEmpty() == true)
fCurrentWord = lastWord;
// Now to find the substitutes
const char* substitution = NULL;
if (fCurrentWord.StartsWith("/") == true)
substitution = _CommandAutoComplete();
else
substitution = _UserAutoComplete();
if (substitution == NULL)
fCurrentIndex = 0;
else {
text.ReplaceLast(lastWord.String(), substitution);
SetText(text.String());
Select(TextLength(), TextLength());
}
}
const char*
SendTextView::_CommandAutoComplete()
{
int64 instance =
fConversationView->GetConversation()->GetProtocolLooper()->GetInstance();
CommandMap commands =
((TheApp*)be_app)->GetMainWindow()->GetServer()->Commands(instance);
BString command;
BString cmdWord = BString(fCurrentWord).Remove(0, 1);
for (int i, j = 0; i < commands.CountItems(); i++)
if (commands.KeyAt(i).StartsWith(cmdWord)) {
if (j == fCurrentIndex) {
command = commands.KeyAt(i);
fCurrentIndex++;
break;
}
j++;
}
if (command.IsEmpty() == true)
return NULL;
return command.Prepend("/").String();
}
const char*
SendTextView::_UserAutoComplete()
{
BString user;
UserMap users = fConversationView->GetConversation()->Users();
for (int i, j = 0; i < users.CountItems(); i++)
if (users.KeyAt(i).StartsWith(fCurrentWord)) {
if (j == fCurrentIndex) {
user = users.KeyAt(i);
fCurrentIndex++;
break;
}
j++;
}
if (user.IsEmpty() == true)
return NULL;
return user.String();
}
void
SendTextView::_AppendHistory()
{
fHistoryIndex = 0;
fHistory.Add(BString(Text()), 0);
if (fHistory.CountStrings() == 21)
fHistory.Remove(20);
}
void
SendTextView::_UpHistory()
{
if (fHistoryIndex == 0 && TextLength() > 0)
_AppendHistory();
if (fHistoryIndex < fHistory.CountStrings()) {
fHistoryIndex++;
SetText(fHistory.StringAt(fHistoryIndex - 1));
Select(TextLength(), TextLength());
}
}
void
SendTextView::_DownHistory()
{
if (fHistoryIndex > 1) {
fHistoryIndex--;
SetText(fHistory.StringAt(fHistoryIndex - 1));
Select(TextLength(), TextLength());
}
}