Add new extractor

extract.js

@@ -0,0 +1,44 @@
+console.log('[ Loaded schedule extractor ]');
+
+var injectElementParent = document.getElementsByClassName('span6right')[0];
+
+const newsContainer = document.getElementById('news_con');
+newsContainer.remove();
+
+const injectFrameElement = document.createElement("div")
+injectFrameElement.style = "background-color:#000;border-radius:5px;justify-content:center;text-align:center;padding:15px;"
+injectElementParent.appendChild(injectFrameElement)
+
+const injectMessageElement = document.createElement("h2");
+injectMessageElement.textContent = "[ Schedule Extraction Script 1.0 ]";
+injectMessageElement.style = "color:#05f735;";
+injectFrameElement.appendChild(injectMessageElement);
+
+const injectButtonElement = document.createElement("button");
+injectButtonElement.textContent = "start extraction";
+injectButtonElement.style = "background-color:#fff;border-radius:15px;font-size:15px;"
+injectButtonElement.addEventListener("click", extract, false);
+injectFrameElement.appendChild(injectButtonElement);
+
+const injectConsoleElement = document.createElement("div");
+injectConsoleElement.style = "background-color:#202020;border:5px green;border-radius:5px;padding:15px;max-height:200px;overflow-y:scroll;color:#ffffff;text-align:left;";
+
+function log(msg) {
+    const injectConsoleMessageElement = document.createElement("p");
+    injectConsoleMessageElement.textContent = msg;
+    injectConsoleElement.appendChild(injectConsoleMessageElement);
+}
+
+function extract() {
+    injectButtonElement.remove();
+    injectFrameElement.appendChild(injectConsoleElement);
+    log("----- Extraction start -----");
+
+    var scheduleItemArray = document.getElementsByClassName('cal-lesson');
+
+    for (let i = 0; i < scheduleItemArray.length; i++) {
+        log(scheduleItemArray[i].textContent);
+    }
+    
+    log("----- Extraction end -----")
+}

grab.js

@@ -1 +0,0 @@
-console.log("[ Loaded grab.js ]")