Merge "Fetch more info about edit files"

polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view.html

@@ -97,10 +97,9 @@ limitations under the License.
     </gr-fixed-panel>
     <div class="textareaWrapper">
       <gr-endpoint-decorator name="editor">
-        <gr-endpoint-param name="fileContent" value="[[_newContent]]">
-        </gr-endpoint-param>
-        <gr-endpoint-param name="prefs" value="[[_prefs]]">
-        </gr-endpoint-param>
+        <gr-endpoint-param name="fileContent" value="[[_newContent]]"></gr-endpoint-param>
+        <gr-endpoint-param name="prefs" value="[[_prefs]]"></gr-endpoint-param>
+        <gr-endpoint-param name="fileType" value="[[_type]]"></gr-endpoint-param>
         <textarea value="{{_newContent::input}}" id="file"></textarea>
       </gr-endpoint-decorator>
     </div>

polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view.js

@@ -36,6 +36,7 @@
       _changeEditDetail: Object,
       _changeNum: String,
       _path: String,
+      _type: String,
       _content: String,
       _newContent: String,
       _saveDisabled: {
@@ -81,11 +82,7 @@
       const promises = [];
 
       promises.push(this._getChangeDetail(this._changeNum));
-      promises.push(this._getFileContent(this._changeNum, this._path)
-          .then(fileContent => {
-            this._content = fileContent;
-            this._newContent = fileContent;
-          }));
+      promises.push(this._getFileData(this._changeNum, this._path));
       return Promise.all(promises);
     },
 
@@ -109,8 +106,14 @@
       Gerrit.Nav.navigateToChange(this._change, this.EDIT_NAME);
     },
 
-    _getFileContent(changeNum, path) {
-      return this.$.restAPI.getFileInChangeEdit(changeNum, path);
+    _getFileData(changeNum, path) {
+      return this.$.restAPI.getFileInChangeEdit(changeNum, path).then(res => {
+        if (!res.ok) { return; }
+
+        this._type = res.type;
+        this._newContent = res.content;
+        this._content = res.content;
+      });
     },
 
     _saveEdit() {

polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view_test.html

@@ -67,8 +67,11 @@ suite('gr-editor-view tests', () => {
 
     test('good params proceed', () => {
       changeDetailStub.returns(Promise.resolve({}));
-      const fileStub = sandbox.stub(element, '_getFileContent')
-          .returns(Promise.resolve('text'));
+      const fileStub = sandbox.stub(element, '_getFileData', () => {
+        element._content = 'text';
+        element._newContent = 'text';
+        element._type = 'application/octet-stream';
+      });
 
       const promises = element._paramsChanged(
           Object.assign({}, mockParams, {view: Gerrit.Nav.View.EDIT}));
@@ -84,6 +87,7 @@ suite('gr-editor-view tests', () => {
       return promises.then(() => {
         assert.equal(element._content, 'text');
         assert.equal(element._newContent, 'text');
+        assert.equal(element._type, 'application/octet-stream');
       });
     });
   });
@@ -179,5 +183,41 @@ suite('gr-editor-view tests', () => {
       assert.isTrue(navigateStub.called);
     });
   });
+
+  suite('_getFileData', () => {
+    setup(() => {
+      element._newContent = 'initial';
+      element._content = 'initial';
+      element._type = 'initial';
+    });
+
+    test('res.ok', () => {
+      sandbox.stub(element.$.restAPI, 'getFileInChangeEdit')
+          .returns(Promise.resolve({
+            ok: true,
+            type: 'text/javascript',
+            content: 'new content',
+          }));
+
+      // Ensure no data is set with a bad response.
+      return element._getFileData('1', 'test/path').then(() => {
+        assert.equal(element._newContent, 'new content');
+        assert.equal(element._content, 'new content');
+        assert.equal(element._type, 'text/javascript');
+      });
+    });
+
+    test('!res.ok', () => {
+      sandbox.stub(element.$.restAPI, 'getFileInChangeEdit')
+          .returns(Promise.resolve({}));
+
+      // Ensure no data is set with a bad response.
+      return element._getFileData('1', 'test/path').then(() => {
+        assert.equal(element._newContent, 'initial');
+        assert.equal(element._content, 'initial');
+        assert.equal(element._type, 'initial');
+      });
+    });
+  });
 });
 </script>

polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-rest-api-interface.js

@@ -1339,7 +1339,13 @@
       return this.getChangeURLAndSend(changeNum, 'GET', null, e, null, null,
           null, null, headers).then(res => {
             if (!res.ok) { return res; }
-            return this.getResponseObject(res);
+
+            // The file type (used for syntax highlighting) is identified in the
+            // X-FYI-Content-Type header of the response.
+            const type = res.headers.get('X-FYI-Content-Type');
+            return this.getResponseObject(res).then(content => {
+              return {content, type};
+            });
           });
     },
 

polygerrit-ui/app/elements/shared/gr-rest-api-interface/gr-rest-api-interface_test.html

@@ -1181,5 +1181,26 @@ limitations under the License.
           fetchStub.lastCall.args[0],
           '/projects/gerrit%2Fproject/dashboards/default%3Amain');
     });
+
+    test('getFileInChangeEdit', () => {
+      sandbox.stub(element, 'getChangeURLAndSend')
+          .returns(Promise.resolve({
+            ok: 'true',
+            headers: {
+              get(header) {
+                if (header === 'X-FYI-Content-Type') {
+                  return 'text/java';
+                }
+              },
+            },
+          }));
+
+      sandbox.stub(element, 'getResponseObject')
+          .returns(Promise.resolve('new content'));
+
+      return element.getFileInChangeEdit('1', 'test/path').then(res => {
+        assert.deepEqual(res, {content: 'new content', type: 'text/java'});
+      });
+    });
   });
 </script>