Added forceLoad ability to singleFileDiffs, added callback to getContentHTML, added conditional force load if a collapsed diff line anchor is found21633-permalink-to-collapsed-diff-line-does-not-work

Use url utility to retrieve hash

2 files changed, 28 insertions, 9 deletions

diff --git a/app/assets/javascripts/merge_request_tabs.js b/app/assets/javascripts/merge_request_tabs.js
index fd21aa1fefa..4c2de12707f 100644
--- a/app/assets/javascripts/merge_request_tabs.js
+++ b/app/assets/javascripts/merge_request_tabs.js
@@ -237,8 +237,11 @@
               _this.expandViewContainer();
             }
             _this.diffsLoaded = true;
-            _this.scrollToElement("#diffs");
-            _this.highlighSelectedLine();
+            var anchoredDiff = gl.utils.getLocationHash();
+            if (anchoredDiff) _this.openAnchoredDiff(anchoredDiff, function() {
+              _this.scrollToElement("#diffs");
+              _this.highlighSelectedLine();
+            });
             _this.filesCommentButton = $('.files .diff-file').filesCommentButton();
             return $(document).off('click', '.diff-line-num a').on('click', '.diff-line-num a', function(e) {
               e.preventDefault();
@@ -251,6 +254,17 @@
       });
     };
 
+    MergeRequestTabs.prototype.openAnchoredDiff = function(anchoredDiff, cb) {
+      var diffTitle = $('#file-path-' + anchoredDiff);
+      var diffFile = diffTitle.closest('.diff-file');
+      var nothingHereBlock = $('.nothing-here-block:visible', diffFile);
+      if (nothingHereBlock.length) {
+        diffFile.singleFileDiff(true, cb);
+      } else {
+        cb();
+      }
+    };
+
     MergeRequestTabs.prototype.highlighSelectedLine = function() {
       var $diffLine, diffLineTop, hashClassString, locationHash, navBarHeight;
       $('.hll').removeClass('hll');
diff --git a/app/assets/javascripts/single_file_diff.js b/app/assets/javascripts/single_file_diff.js
index ee6af123268..a7150e714ce 100644
--- a/app/assets/javascripts/single_file_diff.js
+++ b/app/assets/javascripts/single_file_diff.js
@@ -12,7 +12,7 @@
 
     COLLAPSED_HTML = '<div class="nothing-here-block diff-collapsed">This diff is collapsed. <a class="click-to-expand">Click to expand it.</a></div>';
 
-    function SingleFileDiff(file) {
+    function SingleFileDiff(file, forceLoad, cb) {
       this.file = file;
       this.toggleDiff = bind(this.toggleDiff, this);
       this.content = $('.diff-content', this.file);
@@ -31,9 +31,12 @@
         this.$toggleIcon.addClass('fa-caret-down');
       }
       $('.file-title, .click-to-expand', this.file).on('click', this.toggleDiff);
+      if (forceLoad) {
+        this.toggleDiff(null, cb);
+      }
     }
 
-    SingleFileDiff.prototype.toggleDiff = function(e) {
+    SingleFileDiff.prototype.toggleDiff = function(e, cb) {
       var $target = $(e.target);
       if (!$target.hasClass('file-title') && !$target.hasClass('click-to-expand') && !$target.hasClass('diff-toggle-caret')) return;
       this.isOpen = !this.isOpen;
@@ -53,11 +56,11 @@
         }
       } else {
         this.$toggleIcon.addClass('fa-caret-down').removeClass('fa-caret-right');
-        return this.getContentHTML();
+        return this.getContentHTML(cb);
       }
     };
 
-    SingleFileDiff.prototype.getContentHTML = function() {
+    SingleFileDiff.prototype.getContentHTML = function(cb) {
       this.collapsedContent.hide();
       this.loadingContent.show();
       $.get(this.diffForPath, (function(_this) {
@@ -75,6 +78,8 @@
           if (typeof DiffNotesApp !== 'undefined') {
             DiffNotesApp.compileComponents();
           }
+
+          if (cb) cb();
         };
       })(this));
     };
@@ -83,10 +88,10 @@
 
   })();
 
-  $.fn.singleFileDiff = function() {
+  $.fn.singleFileDiff = function(forceLoad, cb) {
     return this.each(function() {
-      if (!$.data(this, 'singleFileDiff')) {
-        return $.data(this, 'singleFileDiff', new SingleFileDiff(this));
+      if (!$.data(this, 'singleFileDiff') || forceLoad) {
+        return $.data(this, 'singleFileDiff', new SingleFileDiff(this, forceLoad, cb));
       }
     });
   };