| /** |
| * @license |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * 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. |
| */ |
| (function() { |
| 'use strict'; |
| |
| const RESTORED_MESSAGE = 'Content restored from a previous edit.'; |
| const STORAGE_DEBOUNCE_INTERVAL_MS = 400; |
| |
| Polymer({ |
| is: 'gr-editable-content', |
| |
| /** |
| * Fired when the save button is pressed. |
| * |
| * @event editable-content-save |
| */ |
| |
| /** |
| * Fired when the cancel button is pressed. |
| * |
| * @event editable-content-cancel |
| */ |
| |
| /** |
| * Fired when content is restored from storage. |
| * |
| * @event show-alert |
| */ |
| |
| properties: { |
| content: { |
| notify: true, |
| type: String, |
| }, |
| disabled: { |
| reflectToAttribute: true, |
| type: Boolean, |
| value: false, |
| }, |
| editing: { |
| observer: '_editingChanged', |
| type: Boolean, |
| value: false, |
| }, |
| removeZeroWidthSpace: Boolean, |
| // If no storage key is provided, content is not stored. |
| storageKey: String, |
| _saveDisabled: { |
| computed: '_computeSaveDisabled(disabled, content, _newContent)', |
| type: Boolean, |
| value: true, |
| }, |
| _newContent: { |
| type: String, |
| observer: '_newContentChanged', |
| }, |
| }, |
| |
| behaviors: [ |
| Gerrit.FireBehavior, |
| ], |
| |
| focusTextarea() { |
| this.$$('iron-autogrow-textarea').textarea.focus(); |
| }, |
| |
| _newContentChanged(newContent, oldContent) { |
| if (!this.storageKey) { return; } |
| |
| this.debounce('store', () => { |
| if (newContent.length) { |
| this.$.storage.setEditableContentItem(this.storageKey, newContent); |
| } else { |
| this.$.storage.eraseEditableContentItem(this.storageKey); |
| } |
| }, STORAGE_DEBOUNCE_INTERVAL_MS); |
| }, |
| |
| _editingChanged(editing) { |
| if (!editing) { return; } |
| |
| let content; |
| if (this.storageKey) { |
| const storedContent = |
| this.$.storage.getEditableContentItem(this.storageKey); |
| if (storedContent && storedContent.message) { |
| content = storedContent.message; |
| this.dispatchEvent(new CustomEvent('show-alert', { |
| detail: {message: RESTORED_MESSAGE}, |
| bubbles: true, |
| composed: true, |
| })); |
| } |
| } |
| if (!content) { |
| content = this.content || ''; |
| } |
| |
| // TODO(wyatta) switch linkify sequence, see issue 5526. |
| this._newContent = this.removeZeroWidthSpace ? |
| content.replace(/^R=\u200B/gm, 'R=') : |
| content; |
| }, |
| |
| _computeSaveDisabled(disabled, content, newContent) { |
| // Polymer 2: check for undefined |
| if ([ |
| disabled, |
| content, |
| newContent, |
| ].some(arg => arg === undefined)) { |
| return true; |
| } |
| |
| return disabled || (content === newContent); |
| }, |
| |
| _handleSave(e) { |
| e.preventDefault(); |
| this.fire('editable-content-save', {content: this._newContent}); |
| }, |
| |
| _handleCancel(e) { |
| e.preventDefault(); |
| this.editing = false; |
| this.fire('editable-content-cancel'); |
| }, |
| }); |
| })(); |