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package client;
import client.Main.getEl;
import haxe.Timer;
import js.Browser.document;
import js.Browser.window;
import js.html.Element;
import js.html.Event;
import js.html.InputElement;
import js.html.KeyboardEvent;
class ChatInput {
public final chatline:InputElement;
public final commandsWrap:Element;
public final commandsList:Element;
public final inputWithHistory:InputWithHistory;
final main:Main;
var filteredCommands:Array<Commands.CommandInfo> = [];
var selectedCommandIndex = -1;
public function new(main:Main) {
this.main = main;
chatline = getEl("#chatline");
commandsWrap = getEl("#chat-commands-wrap");
commandsList = getEl("#chat-commands-list");
setupFocusHandler();
setupAutocomplete();
inputWithHistory = new InputWithHistory(chatline, 50, onEnter, onInterceptKeyDown);
}
function setupFocusHandler():Void {
chatline.onfocus = e -> {
if (Utils.isIOS()) {
final startY = 0;
Timer.delay(() -> {
window.scrollBy(0, -(window.scrollY - startY));
getEl("#video").scrollTop = 0;
main.scrollChatToEnd();
}, 100);
} else if (Utils.isTouch()) {
main.scrollChatToEnd();
}
};
}
function setupAutocomplete():Void {
commandsList.addEventListener("mousemove", e -> {
commandsList.classList.remove("keyboard-nav");
});
chatline.addEventListener("input", e -> {
final val = chatline.value;
if (val.startsWith("/")) {
filteredCommands = Commands.filterForAutocomplete(val);
selectedCommandIndex = filteredCommands.length > 0 ? 0 : -1;
renderCommands();
} else {
commandsWrap.style.display = "none";
selectedCommandIndex = -1;
}
});
chatline.addEventListener("blur", e -> {
commandsWrap.style.display = "none";
});
}
function renderCommands():Void {
commandsList.innerHTML = "";
if (filteredCommands.length == 0) {
commandsWrap.style.display = "none";
return;
}
final parsed = Commands.parse(chatline.value);
final currentArgIndex = parsed.currentArgIndex;
for (i in 0...filteredCommands.length) {
final cmd = filteredCommands[i];
final item = document.createDivElement();
item.className = "chat-command-item" + (i == selectedCommandIndex ? " active" : "");
item.onclick = e -> {
chatline.value = cmd.name + (cmd.args > 0 ? " " : "");
chatline.focus();
if (cmd.args == 0) {
commandsWrap.style.display = "none";
selectedCommandIndex = -1;
} else {
chatline.dispatchEvent(new Event("input"));
}
return;
};
item.onmouseenter = e -> {
if (!commandsList.classList.contains("keyboard-nav")) {
selectedCommandIndex = i;
for (j in 0...commandsList.children.length) {
final child = commandsList.children[j];
if (j == i) child.classList.add("active");
else child.classList.remove("active");
}
}
};
final nameDiv = document.createDivElement();
nameDiv.className = "chat-command-item-name";
nameDiv.innerText = cmd.name.toString();
final descDiv = document.createDivElement();
descDiv.className = "chat-command-item-desc";
descDiv.innerHTML = Commands.formatDescWithHighlight(Lang.get(cmd.lang), currentArgIndex);
item.appendChild(nameDiv);
item.appendChild(descDiv);
commandsList.appendChild(item);
}
commandsWrap.style.display = "";
if (selectedCommandIndex >= 0 && commandsList.children.length > selectedCommandIndex) {
final selectedEl:Element = cast commandsList.children[selectedCommandIndex];
untyped selectedEl.scrollIntoView({block: "center"});
}
}
function onEnter(value:String):Bool {
if (main.handleCommands(value)) return true;
main.send({
type: Message,
message: {
clientName: "",
text: value
}
});
if (Utils.isTouch()) chatline.blur();
commandsWrap.style.display = "none";
return true;
}
function onInterceptKeyDown(e:KeyboardEvent):Bool {
if (commandsWrap.style.display == "none") return false;
final key:KeyCode = cast e.keyCode;
switch key {
case Up:
commandsList.classList.add("keyboard-nav");
if (selectedCommandIndex > 0) selectedCommandIndex--;
else selectedCommandIndex = filteredCommands.length - 1;
renderCommands();
e.preventDefault();
return true;
case Down:
commandsList.classList.add("keyboard-nav");
if (selectedCommandIndex < filteredCommands.length - 1) selectedCommandIndex++;
else selectedCommandIndex = 0;
renderCommands();
e.preventDefault();
return true;
case Return, Tab:
if (selectedCommandIndex < 0 || selectedCommandIndex >= filteredCommands.length) {
return false;
}
final selectedCmd = filteredCommands[selectedCommandIndex];
final val = chatline.value;
final hasSpace = val.indexOf(" ") >= 0;
if (key == Return) {
if (hasSpace
|| (selectedCmd.args == 0
&& val.trim().toLowerCase() == selectedCmd.name.toString())) {
return false;
}
}
if (!hasSpace) {
chatline.value = selectedCmd.name + (selectedCmd.args > 0 ? " " : "");
}
e.preventDefault();
chatline.dispatchEvent(new Event("input"));
return true;
case Escape:
commandsWrap.style.display = "none";
return false;
case _:
return false;
}
}
}
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