| /* |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /** |
| * Base class for visualization |
| */ |
| export default class Transformation { |
| constructor(config) { |
| this.config = config; |
| this._emitter = () => {}; |
| } |
| |
| /** |
| * return { |
| * template : angular template string or url (url should end with .html), |
| * scope : an object to bind to template scope |
| * } |
| */ |
| getSetting() { |
| // override this |
| } |
| |
| /** |
| * Method will be invoked when tableData or config changes |
| */ |
| transform(tableData) { |
| // override this |
| } |
| |
| /** |
| * render setting |
| */ |
| renderSetting(targetEl) { |
| let setting = this.getSetting(); |
| if (!setting) { |
| return; |
| } |
| |
| // already readered |
| if (this._scope) { |
| let self = this; |
| this._scope.$apply(function() { |
| for (let k in setting.scope) { |
| if(setting.scope.hasOwnProperty(k)) { |
| self._scope[k] = setting.scope[k]; |
| } |
| } |
| |
| for (let k in self._prevSettingScope) { |
| if (!setting.scope[k]) { |
| self._scope[k] = setting.scope[k]; |
| } |
| } |
| }); |
| return; |
| } else { |
| this._prevSettingScope = setting.scope; |
| } |
| |
| let scope = this._createNewScope(); |
| for (let k in setting.scope) { |
| if(setting.scope.hasOwnProperty(k)) { |
| scope[k] = setting.scope[k]; |
| } |
| } |
| let template = setting.template; |
| |
| if (template.split('\n').length === 1 && |
| template.endsWith('.html')) { // template is url |
| let self = this; |
| this._templateRequest(template).then(function(t) { |
| self._render(targetEl, t, scope); |
| }); |
| } else { |
| this._render(targetEl, template, scope); |
| } |
| } |
| |
| _render(targetEl, template, scope) { |
| this._targetEl = targetEl; |
| targetEl.html(template); |
| this._compile(targetEl.contents())(scope); |
| this._scope = scope; |
| } |
| |
| setConfig(config) { |
| this.config = config; |
| } |
| |
| /** |
| * Emit config. config will sent to server and saved. |
| */ |
| emitConfig(config) { |
| this._emitter(config); |
| } |
| } |