ES6ify all the things!

1 files changed, 77 insertions, 0 deletions

diff --git a/app/assets/javascripts/single_file_diff.js b/app/assets/javascripts/single_file_diff.js
new file mode 100644
index 00000000000..b9ae497b0e5
--- /dev/null
+++ b/app/assets/javascripts/single_file_diff.js
@@ -0,0 +1,77 @@
+(function() {
+  var bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
+
+  this.SingleFileDiff = (function() {
+    var COLLAPSED_HTML, ERROR_HTML, LOADING_HTML, WRAPPER;
+
+    WRAPPER = '<div class="diff-content diff-wrap-lines"></div>';
+
+    LOADING_HTML = '<i class="fa fa-spinner fa-spin"></i>';
+
+    ERROR_HTML = '<div class="nothing-here-block"><i class="fa fa-warning"></i> Could not load diff</div>';
+
+    COLLAPSED_HTML = '<div class="nothing-here-block diff-collapsed">This diff is collapsed. Click to expand it.</div>';
+
+    function SingleFileDiff(file) {
+      this.file = file;
+      this.toggleDiff = bind(this.toggleDiff, this);
+      this.content = $('.diff-content', this.file);
+      this.diffForPath = this.content.find('[data-diff-for-path]').data('diff-for-path');
+      this.isOpen = !this.diffForPath;
+      if (this.diffForPath) {
+        this.collapsedContent = this.content;
+        this.loadingContent = $(WRAPPER).addClass('loading').html(LOADING_HTML).hide();
+        this.content = null;
+        this.collapsedContent.after(this.loadingContent);
+      } else {
+        this.collapsedContent = $(WRAPPER).html(COLLAPSED_HTML).hide();
+        this.content.after(this.collapsedContent);
+      }
+      this.collapsedContent.on('click', this.toggleDiff);
+      $('.file-title > a', this.file).on('click', this.toggleDiff);
+    }
+
+    SingleFileDiff.prototype.toggleDiff = function(e) {
+      this.isOpen = !this.isOpen;
+      if (!this.isOpen && !this.hasError) {
+        this.content.hide();
+        return this.collapsedContent.show();
+      } else if (this.content) {
+        this.collapsedContent.hide();
+        return this.content.show();
+      } else {
+        return this.getContentHTML();
+      }
+    };
+
+    SingleFileDiff.prototype.getContentHTML = function() {
+      this.collapsedContent.hide();
+      this.loadingContent.show();
+      $.get(this.diffForPath, (function(_this) {
+        return function(data) {
+          _this.loadingContent.hide();
+          if (data.html) {
+            _this.content = $(data.html);
+            _this.content.syntaxHighlight();
+          } else {
+            _this.hasError = true;
+            _this.content = $(ERROR_HTML);
+          }
+          return _this.collapsedContent.after(_this.content);
+        };
+      })(this));
+    };
+
+    return SingleFileDiff;
+
+  })();
+
+  $.fn.singleFileDiff = function() {
+    return this.each(function() {
+      if (!$.data(this, 'singleFileDiff')) {
+        return $.data(this, 'singleFileDiff', new SingleFileDiff(this));
+      }
+    });
+  };
+
+}).call(this);