From 086eabf6b934bfadd4493d468ec315da80ea9d9c Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Wed, 2 May 2018 19:47:30 +0200
Subject: Several improvements in chat.js

---
 .../sprinkles/core/assets/SiteAssets/js/chat.js    | 171 +++++++++++++++++++++
 1 file changed, 171 insertions(+)
 create mode 100644 main/app/sprinkles/core/assets/SiteAssets/js/chat.js

(limited to 'main/app/sprinkles/core/assets')

diff --git a/main/app/sprinkles/core/assets/SiteAssets/js/chat.js b/main/app/sprinkles/core/assets/SiteAssets/js/chat.js
new file mode 100644
index 0000000..82cae93
--- /dev/null
+++ b/main/app/sprinkles/core/assets/SiteAssets/js/chat.js
@@ -0,0 +1,171 @@
+ /******
+ GENERAL
+ ******/
+function InitializeChatServer() {
+    var ChatTextInput = $("#ChatTextInput");
+    var SubscribeTextInput = $("#SubscribeTextInput");
+    var ChatMessages = $("#ChatMessages");
+    var TypingIndicatorAnimationElement = "<div class='spinner'><div class='bounce1'></div><div class='bounce2'></div><div class='bounce3'></div></div>";
+
+    var ChatSocket = new WebSocket('wss://marvinborner.ddnss.de:1337');
+    ChatSocket.onerror = function () {
+        setTimeout(function () {
+            console.log("[WEBSOCKET LOGGER] Connection failed. Trying again...");
+            InitializeChatServer();
+        }, 5000);
+    };
+    ChatSocket.onopen = function () {
+        // CONNECTION SUCCESSFUL!
+        console.log("[WEBSOCKET LOGGER] Chat connection established!");
+        // GOT MESSAGE
+        ChatSocket.onmessage = function (e) {
+            console.log("[WEBSOCKET LOGGER] Received a message from server!");
+            // DECLARATIONS
+            var TypingIndicatorMessage = $(".TypingIndicatorMessage").parent();
+            var LastMessage = $(".MessageWrapper.Normal:last .ChatMessage");
+            var MessageObject = JSON.parse(e.data);
+            var Message = MessageObject.Message;
+            var Username = MessageObject.Username;
+            var GroupName = MessageObject.GroupName;
+            var State = MessageObject.State;
+            var ServerMessage = MessageObject.ServerMessage;
+            var WasHimself = MessageObject.WasHimself;
+            var ServerMessageType = MessageObject.ServerMessageType;
+
+            if (ServerMessage === false) { // NO SERVER MESSAGE -> SENT BY USER
+                if (WasHimself === true) { // -> MESSAGE WAS FROM HIMSELF
+                    if (!LastMessage.hasClass("MessageSent")) { // CHECK IF PREVIOUS MESSAGE WAS FROM HIMSELF TOO -> IF NOT, CREATE NEW 'ALONE' MESSAGE
+                        ChatMessages.append("<div class='MessageWrapper Normal'><div class='ChatMessage MessageSent AloneMessage animated fadeInRight'>" + Message + "</div></div>");
+                    } else if (LastMessage.hasClass("MessageSent")) { // IF PREVIOUS MESSAGE WAS FROM HIMSELF TOO -> CREATE WITH CORRESPONDING CLASSES FOR DESIGN
+                        ChatMessages.append("<div class='MessageWrapper Normal'><div class='ChatMessage MessageSent BottomMessage animated fadeInRight'>" + Message + "</div></div>");
+                        if (LastMessage.hasClass("AloneMessage")) {
+                            LastMessage.removeClass("AloneMessage");
+                            LastMessage.addClass("TopMessage");
+                        } else if (LastMessage.hasClass("BottomMessage")) {
+                            LastMessage.removeClass("BottomMessage");
+                            LastMessage.addClass("MiddleMessage");
+                        }
+                    }
+                } else if (WasHimself === false) { // -> MESSAGE WAS FROM OTHER USER
+                    if (!LastMessage.hasClass("MessageReceived")) { // CHECK IF PREVIOUS MESSAGE WAS FROM OTHER USER TOO -> IF NOT, CREATE NEW 'ALONE' MESSAGE
+                        ChatMessages.append("<div class='MessageWrapper Normal'><div class='ChatMessage MessageReceived AloneMessage animated fadeInLeft'>" + Message + "</div></div>");
+                    } else if (LastMessage.hasClass("MessageReceived")) { // IF PREVIOUS MESSAGE WAS FROM OTHER USER TOO -> CREATE WITH CORRESPONDING CLASSES FOR DESIGN
+                        ChatMessages.append("<div class='MessageWrapper Normal'><div class='ChatMessage MessageReceived BottomMessage animated fadeInLeft'>" + Message + "</div></div>");
+                        if (LastMessage.hasClass("AloneMessage")) {
+                            LastMessage.removeClass("AloneMessage");
+                            LastMessage.addClass("TopMessage");
+                        } else if (LastMessage.hasClass("BottomMessage")) {
+                            LastMessage.removeClass("BottomMessage");
+                            LastMessage.addClass("MiddleMessage");
+                        }
+                    }
+                }
+                // CONVERT LINKS TO LINKS
+                $('.MessageReceived').linkify({
+                    target: "_blank"
+                });
+            } else if (ServerMessage === true) { // SERVER MESSAGE
+                if (ServerMessageType === "GroupJoin") { // TYPE: USER JOINED A GROUP
+                    if (WasHimself === true) { // HIMSELF JOINED A GROUP -> NOTIFY
+                        ChatMessages.empty(); // -> EMPTY MESSAGES ON NEW GROUP JOIN
+                        ChatMessages.append("<br><div class='MessageWrapper'><div class='ServerChatMessage'>" + GroupName + "</span></div></div><br>");
+                        ReplaceServerMessage("YouGroupJoin"); // FOR TRANSLATION
+                    } else if (WasHimself === false) { // OTHER USER JOINED A GROUP -> NOTIFY
+                        ChatMessages.append("<br><div class='MessageWrapper'><div class='ServerChatMessage'>" + Username + "</span></div></div><br>");
+                        ReplaceServerMessage("UserGroupJoin"); // FOR TRANSLATION
+                    }
+                } else if (ServerMessageType === "UserDisconnect") { // TYPE: USER DISCONNECTED -> NOTIFY
+                    ChatMessages.append("<br><div class='MessageWrapper'><div class='ServerChatMessage'>" + Username + "</span></div></div><br>");
+                    ReplaceServerMessage("UserDisconnect"); // FOR TRANSLATION
+                } else if (ServerMessageType === "TypingState") { // SOMEBODY'S TYPING STATE CHANGED!
+                    if (State === true) { // IF 'SOMEBODY' STARTED TYPING
+                        if (WasHimself === true) { // IDENTIFY 'SOMEBODY' -> WAS HIMSELF -> NOT THAT IMPORTANT (USER KNOWS WHEN HE STARTS TYPING?)
+                            // NOTHING
+                        } else if (WasHimself === false) { // IDENTIFY 'SOMEBODY' -> WAS OTHER USER -> SHOW TYPING ANIMATION ON RECEIVER'S SIDE
+                            ChatMessages.append("<div class='MessageWrapper'><div class='ChatMessage TypingIndicatorMessage AloneMessage'>" + TypingIndicatorAnimationElement + "</div></div>");
+                            console.log("[SERVER REPORT] " + Username + " STARTED TYPING");
+                        }
+                    } else if (State === false) { // IF 'SOMEBODY' STOPPED TYPING
+                        if (WasHimself === true) { // IDENTIFY 'SOMEBODY' -> WAS HIMSELF -> NOT THAT IMPORTANT (USER KNOWS WHEN HE STOPS TYPING?)
+                            // NOTHING
+                        } else if (WasHimself === false) { // IDENTIFY 'SOMEBODY' -> WAS OTHER USER -> REMOVE TYPING ANIMATION
+                            //TypingIndicatorMessage.fadeOut("fast");
+                            TypingIndicatorMessage.remove();
+                            console.log("[SERVER REPORT] " + Username + " STOPPED TYPING");
+                        }
+                    }
+                }
+            }
+            // SCROLL TO BOTTOM ON NEW MESSAGE OF ANY KIND
+            ChatMessages.animate({scrollTop: document.querySelector("#ChatMessages").scrollHeight}, "slow");
+        };
+
+
+        // TYPING RECOGNITION
+        var typingTimer;
+        var isTyping = false;
+
+        ChatTextInput.keydown(function () {
+            sendStartTyping();
+            clearTimeout(typingTimer);
+        });
+
+        ChatTextInput.keyup(function () {
+            clearTimeout(typingTimer);
+            typingTimer = setTimeout(function () {
+                sendStopTyping()
+            }, 2500)
+        });
+
+        function sendStartTyping() {
+            if (isTyping === false) {
+                sendTypingState(true);
+                isTyping = true;
+            }
+        }
+
+        function sendStopTyping() {
+            if (isTyping === true) {
+                sendTypingState(false);
+                isTyping = false;
+            }
+        }
+
+        function sendTypingState(state) { // SEND STATE TO CHAT SERVER
+            ChatSocket.send(JSON.stringify({ClientMessageType: "TypingState", State: state}));
+        }
+
+        $(window).unload(function () {
+            sendStopTyping(); // USER STOPS TYPING ON PAGE CLOSE ETC
+        });
+
+        // SUBSCRIBE TO CHAT
+        SubscribeTextInput.keyup(function (e) {
+            if (e.keyCode === 13 && SubscribeTextInput.val().length > 0) {
+                subscribe(SubscribeTextInput.val());
+            }
+        });
+
+        function subscribe(channel) {
+            ChatSocket.send(JSON.stringify({ClientMessageType: "Subscribe", Channel: channel}));
+            SubscribeTextInput.hide();
+            ChatTextInput.show();
+        }
+
+        // SEND MESSAGE FROM INPUT FIELD
+        ChatTextInput.keyup(function (e) {
+            if (e.keyCode === 13 && ChatTextInput.val().length > 0) {
+                ChatSocket.send(JSON.stringify({ClientMessageType: "Message", Message: ChatTextInput.val()}));
+                ChatTextInput.val("");
+                ChatTextInput.val("");
+
+                // USER USUALLY STOPS TYPING ON SENDING -> CHANGE STATE TO FALSE
+                sendTypingState(false);
+                isTyping = false;
+                clearTimeout(typingTimer);
+            }
+        });
+    };
+}
+
+InitializeChatServer();
\ No newline at end of file
-- 
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