Issue #246 - Remove "enhanced" newtab code from Pale Moon

application/palemoon/app/profile/palemoon.js

@@ -1077,9 +1077,6 @@ pref("browser.newtab.preload", false);
 // Toggles the content of 'about:newtab'. Shows the grid when enabled.
 pref("browser.newtabpage.enabled", true);
 
-// XXX: Remove this when "enhanced" tiles are dead
-pref("browser.newtabpage.enhanced", false);
-
 // Disables capturing of page thumbnails
 pref("browser.pagethumbnails.capturing_disabled", false);
 

application/palemoon/components/newtab/grid.js

@@ -130,13 +130,9 @@ var gGrid = {
 
     // Create sites.
     let numLinks = Math.min(links.length, cells.length);
-    let hasHistoryTiles = false;
     for (let i = 0; i < numLinks; i++) {
       if (links[i]) {
         this.createSite(links[i], cells[i]);
-        if (links[i].type == "history") {
-          hasHistoryTiles = true;
-        }
       }
     }
 

application/palemoon/components/newtab/page.js

@@ -47,11 +47,6 @@ var gPage = {
       let enabled = gAllPages.enabled;
       this._updateAttributes(enabled);
 
-      // Update thumbnails to the new enhanced setting
-      if (aData == "browser.newtabpage.enhanced") {
-        this.update();
-      }
-
       // Initialize the whole page if we haven't done that, yet.
       if (enabled) {
         this._init();
@@ -166,16 +161,6 @@ var gPage = {
    */
   _handleUnloadEvent: function Page_handleUnloadEvent() {
     gAllPages.unregister(this);
-    // compute page life-span and send telemetry probe: using milli-seconds will leave
-    // many low buckets empty. Instead we use half-second precision to make low end
-    // of histogram linear and not lose the change in user attention
-    let delta = Math.round((Date.now() - this._firstVisibleTime) / 500);
-    if (this._suggestedTilePresent) {
-      Services.telemetry.getHistogramById("NEWTAB_PAGE_LIFE_SPAN_SUGGESTED").add(delta);
-    }
-    else {
-      Services.telemetry.getHistogramById("NEWTAB_PAGE_LIFE_SPAN").add(delta);
-    }
   },
 
   /**
@@ -250,43 +235,10 @@ var gPage = {
   },
 
   onPageVisibleAndLoaded() {
-    // Send the index of the last visible tile.
-    this.reportLastVisibleTileIndex();
-    // Maybe tell the user they can undo an initial automigration
-    this.maybeShowAutoMigrationUndoNotification();
-  },
-
-  reportLastVisibleTileIndex() {
-    let cwu = window.QueryInterface(Ci.nsIInterfaceRequestor)
-                    .getInterface(Ci.nsIDOMWindowUtils);
-
-    let rect = cwu.getBoundsWithoutFlushing(gGrid.node);
-    let nodes = cwu.nodesFromRect(rect.left, rect.top, 0, rect.width,
-                                  rect.height, 0, true, false);
-
-    let i = -1;
-    let lastIndex = -1;
-    let sites = gGrid.sites;
-
-    for (let node of nodes) {
-      if (node.classList && node.classList.contains("newtab-cell")) {
-        if (sites[++i]) {
-          lastIndex = i;
-          if (sites[i].link.targetedSite) {
-            // record that suggested tile is shown to use suggested-tiles-histogram
-            this._suggestedTilePresent = true;
-          }
-        }
-      }
-    }
   },
 
   toggleEnabled: function(aEvent) {
     gAllPages.enabled = !gAllPages.enabled;
     event.stopPropagation();
-  },
-  
-  maybeShowAutoMigrationUndoNotification() {
-    // sendAsyncMessage("NewTab:MaybeShowAutoMigrationUndoNotification");
-  },
+  }
 };

application/palemoon/components/newtab/sites.js

@@ -136,15 +136,6 @@ Site.prototype = {
     return str;
   },
 
-  _getSuggestedTileExplanation: function() {
-    let targetedName = `<strong> ${this.link.targetedName} </strong>`;
-    let targetedSite = `<strong> ${this.link.targetedSite} </strong>`;
-    if (this.link.explanation) {
-      return this._newTabString(this.link.explanation, [targetedName, targetedSite]);
-    }
-    return newTabString("suggested.button", [targetedName]);
-  },
-
   /**
    * Checks for and modifies link at campaign end time
    */
@@ -155,11 +146,8 @@ Site.prototype = {
        this.link.url = Services.io.newURI(this.url, null, null).resolve("/");
        // clear supplied images - this triggers thumbnail download for new url
        delete this.link.imageURI;
-       delete this.link.enhancedImageURI;
        // remove endTime to avoid further time checks
        delete this.link.endTime;
-       // clear enhanced-content image that may still exist in preloaded page
-       this._querySelector(".enhanced-content").style.backgroundImage = "";
        gPinnedLinks.replace(oldUrl, this.link);
     }
   },
@@ -337,7 +325,7 @@ Site.prototype = {
       }
       else if (!pinned && target.classList.contains("newtab-control-pin")) {
         if (this.pin()) {
-          // suggested link has changed - update rest of the pages
+          // link has changed - update rest of the pages
           gAllPages.update(gPage);
         }
         action = "pin";