From 67bd9ff3af81a4e6b09ab9686c09f0f5cf09b452 Mon Sep 17 00:00:00 2001
From: janekptacijarabaci <janekptacijarabaci@seznam.cz>
Date: Tue, 1 May 2018 00:01:56 +0200
Subject: Bug 1332595 - remove useless click handling

---
 browser/base/content/browser.js | 52 +++--------------------------------------
 1 file changed, 3 insertions(+), 49 deletions(-)

(limited to 'browser/base')

diff --git a/browser/base/content/browser.js b/browser/base/content/browser.js
index 696a2871a..18f9990d0 100755
--- a/browser/base/content/browser.js
+++ b/browser/base/content/browser.js
@@ -2779,24 +2779,6 @@ var BrowserOnClick = {
     }
   },
 
-  handleEvent: function (event) {
-    if (!event.isTrusted || // Don't trust synthetic events
-        event.button == 2) {
-      return;
-    }
-
-    let originalTarget = event.originalTarget;
-    let ownerDoc = originalTarget.ownerDocument;
-    if (!ownerDoc) {
-      return;
-    }
-
-    if (gMultiProcessBrowser &&
-        ownerDoc.documentURI.toLowerCase() == "about:newtab") {
-      this.onE10sAboutNewTab(event, ownerDoc);
-    }
-  },
-
   receiveMessage: function (msg) {
     switch (msg.name) {
       case "Browser:CertExceptionError":
@@ -2990,28 +2972,6 @@ var BrowserOnClick = {
     }
   },
 
-  /**
-   * This functions prevents navigation from happening directly through the <a>
-   * link in about:newtab (which is loaded in the parent and therefore would load
-   * the next page also in the parent) and instructs the browser to open the url
-   * in the current tab which will make it update the remoteness of the tab.
-   */
-  onE10sAboutNewTab: function(event, ownerDoc) {
-    let isTopFrame = (ownerDoc.defaultView.parent === ownerDoc.defaultView);
-    if (!isTopFrame) {
-      return;
-    }
-
-    let anchorTarget = event.originalTarget.parentNode;
-
-    if (anchorTarget instanceof HTMLAnchorElement &&
-        anchorTarget.classList.contains("newtab-link")) {
-      event.preventDefault();
-      let where = whereToOpenLink(event, false, false);
-      openLinkIn(anchorTarget.href, where, { charset: ownerDoc.characterSet, referrerURI: ownerDoc.documentURIObject });
-    }
-  },
-
   ignoreWarningButton: function (reason) {
     // Allow users to override and continue through to the site,
     // but add a notify bar as a reminder, so that they don't lose
@@ -4809,13 +4769,9 @@ var TabsProgressListener = {
       }
     }
 
-    // Attach a listener to watch for "click" events bubbling up from error
-    // pages and other similar pages (like about:newtab). This lets us fix bugs
-    // like 401575 which require error page UI to do privileged things, without
-    // letting error pages have any privilege themselves.
-    // We can't look for this during onLocationChange since at that point the
-    // document URI is not yet the about:-uri of the error page.
-
+    // We used to listen for clicks in the browser here, but when that
+    // became unnecessary, removing the code below caused focus issues.
+    // This code should be removed. Tracked in bug 1337794.
     let isRemoteBrowser = aBrowser.isRemoteBrowser;
     // We check isRemoteBrowser here to avoid requesting the doc CPOW
     let doc = isRemoteBrowser ? null : aWebProgress.DOMWindow.document;
@@ -4830,11 +4786,9 @@ var TabsProgressListener = {
       // STATE_STOP may be received twice for documents, thus store an
       // attribute to ensure handling it just once.
       doc.documentElement.setAttribute("hasBrowserHandlers", "true");
-      aBrowser.addEventListener("click", BrowserOnClick, true);
       aBrowser.addEventListener("pagehide", function onPageHide(event) {
         if (event.target.defaultView.frameElement)
           return;
-        aBrowser.removeEventListener("click", BrowserOnClick, true);
         aBrowser.removeEventListener("pagehide", onPageHide, true);
         if (event.target.documentElement)
           event.target.documentElement.removeAttribute("hasBrowserHandlers");
-- 
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