initial commit

content.js

@@ -0,0 +1,69 @@
+let observer = new MutationObserver((mutations) => { // observe changes on the page, comments are loaded separately so we need this to wait for them
+  mutations.forEach((mutation) => {
+    if (!mutation.addedNodes) return
+
+    for (let i = 0; i < mutation.addedNodes.length; i++) {
+      let node = mutation.addedNodes[i];
+      
+      if (node.id == "reply-dialog") { // we find the reply-dialog place holder
+        for (let j = 0; j < node.parentElement.childElementCount; j++) {
+          let possibleToolbar = node.parentElement.children[j];
+          if (possibleToolbar.id == "toolbar") { // let's find the heath/reply toolbar
+            var spanTag = createDeleteAllCommentsCTA();
+            possibleToolbar.appendChild(spanTag);
+          }
+        }
+      }
+    }
+  })
+});
+
+function createDeleteAllCommentsCTA() {
+  var spanTag = document.createElement("span");
+  spanTag.setAttribute( 'class', 'custom-youtube-button-class' );
+  spanTag.innerHTML = "DELETE All COMMENTS"
+  spanTag.style.font = "12px arial,serif";
+  spanTag.addEventListener("click", deleteAllButtonClicked);
+  return spanTag
+}
+
+function deleteAllButtonClicked(pointerEvent) {
+  searchingCommentParent = findMainParentOfReplyCTA(pointerEvent)
+  var referenceUrl = findUrlToUser(searchingCommentParent).href;
+
+  chrome.runtime.sendMessage({videoUrl: location.href}); // save video URL
+  chrome.runtime.sendMessage({toDeleteUserId: referenceUrl}); // save user URL
+
+  // get authentication token
+  window.open("https://accounts.google.com/o/oauth2/v2/auth?client_id="+google_login_client_id+"&redirect_uri=https://youtube.com/deleteallcomments&response_type=token&scope=https://www.googleapis.com/auth/youtube.force-ssl")
+}
+
+function findMainParentOfReplyCTA(pointerEvent) {
+  var searchingCommentParent = pointerEvent.currentTarget;
+  while(searchingCommentParent.id != "main") {
+    searchingCommentParent = searchingCommentParent.parentElement;
+  }
+  return searchingCommentParent;
+}
+
+function findUrlToUser(mainElement) {
+  for (var i = 0; i < mainElement.childElementCount; i++) {
+    if (mainElement.id == "author-text") {
+      return mainElement;
+    } else {
+      var childResult = findUrlToUser(mainElement.children[i]);
+      if (childResult != null) {
+        return childResult;
+      }
+    }
+  }
+  return null;
+}
+
+
+observer.observe(document.body, {
+    childList: true,
+    subtree: true,
+    attributes: false,
+    characterData: false
+});