1 files changed, 188 insertions, 0 deletions
diff --git a/src/client/ChatInput.hx b/src/client/ChatInput.hx
new file mode 100644
index 0000000..61fb95e
--- /dev/null
+++ b/src/client/ChatInput.hx
@@ -0,0 +1,188 @@
+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;
+		}
+	}
+}