1 files changed, 89 insertions, 0 deletions
diff --git a/app/assets/javascripts/diffs/mixins/diff_content.js b/app/assets/javascripts/diffs/mixins/diff_content.js
new file mode 100644
index 00000000000..bef06ad2b52
--- /dev/null
+++ b/app/assets/javascripts/diffs/mixins/diff_content.js
@@ -0,0 +1,89 @@
+import { mapState, mapGetters, mapActions } from 'vuex';
+import diffDiscussions from '../components/diff_discussions.vue';
+import diffLineGutterContent from '../components/diff_line_gutter_content.vue';
+import diffLineNoteForm from '../components/diff_line_note_form.vue';
+import { trimFirstCharOfLineContent } from '../store/utils';
+import { CONTEXT_LINE_TYPE, CONTEXT_LINE_CLASS_NAME } from '../constants';
+
+export default {
+  props: {
+    diffFile: {
+      type: Object,
+      required: true,
+    },
+    diffLines: {
+      type: Array,
+      required: true,
+    },
+  },
+  data() {
+    return {
+      hoveredLineCode: null,
+      hoveredSection: null,
+    };
+  },
+  components: {
+    diffDiscussions,
+    diffLineNoteForm,
+    diffLineGutterContent,
+  },
+  computed: {
+    ...mapState({
+      diffLineCommentForms: state => state.diffs.diffLineCommentForms,
+    }),
+    ...mapGetters(['discussionsByLineCode', 'isLoggedIn', 'commit']),
+    commitId() {
+      return this.commit && this.commit.id;
+    },
+    userColorScheme() {
+      return window.gon.user_color_scheme;
+    },
+    normalizedDiffLines() {
+      return this.diffLines.map(line => {
+        if (line.richText) {
+          return this.trimFirstChar(line);
+        }
+
+        if (line.left) {
+          Object.assign(line, { left: this.trimFirstChar(line.left) });
+        }
+
+        if (line.right) {
+          Object.assign(line, { right: this.trimFirstChar(line.right) });
+        }
+
+        return line;
+      });
+    },
+    diffLinesLength() {
+      return this.normalizedDiffLines.length;
+    },
+    fileHash() {
+      return this.diffFile.fileHash;
+    },
+  },
+  methods: {
+    ...mapActions(['showCommentForm', 'cancelCommentForm']),
+    getRowClass(line) {
+      const isContextLine = line.left
+        ? line.left.type === CONTEXT_LINE_TYPE
+        : line.type === CONTEXT_LINE_TYPE;
+
+      return {
+        [line.type]: line.type,
+        [CONTEXT_LINE_CLASS_NAME]: isContextLine,
+      };
+    },
+    trimFirstChar(line) {
+      return trimFirstCharOfLineContent(line);
+    },
+    handleShowCommentForm(params) {
+      this.showCommentForm({ lineCode: params.lineCode });
+    },
+    isDiscussionExpanded(lineCode) {
+      const discussions = this.discussionsByLineCode[lineCode];
+
+      return discussions ? discussions.every(discussion => discussion.expanded) : false;
+    },
+  },
+};