BookStack/resources/assets/js/controllers.js

147 lines
5.1 KiB
JavaScript

"use strict";
const moment = require('moment');
require('moment/locale/en-gb');
const editorOptions = require("./pages/page-form");
moment.locale('en-gb');
module.exports = function (ngApp, events) {
ngApp.controller('PageEditController', ['$scope', '$http', '$attrs', '$interval', '$timeout', '$sce',
function ($scope, $http, $attrs, $interval, $timeout, $sce) {
$scope.editorOptions = editorOptions();
$scope.editContent = '';
$scope.draftText = '';
let pageId = Number($attrs.pageId);
let isEdit = pageId !== 0;
let autosaveFrequency = 30; // AutoSave interval in seconds.
let isMarkdown = $attrs.editorType === 'markdown';
$scope.draftsEnabled = $attrs.draftsEnabled === 'true';
$scope.isUpdateDraft = Number($attrs.pageUpdateDraft) === 1;
$scope.isNewPageDraft = Number($attrs.pageNewDraft) === 1;
// Set initial header draft text
if ($scope.isUpdateDraft || $scope.isNewPageDraft) {
$scope.draftText = trans('entities.pages_editing_draft');
} else {
$scope.draftText = trans('entities.pages_editing_page');
}
let autoSave = false;
let currentContent = {
title: false,
html: false
};
if (isEdit && $scope.draftsEnabled) {
setTimeout(() => {
startAutoSave();
}, 1000);
}
// Actions specifically for the markdown editor
if (isMarkdown) {
$scope.displayContent = '';
// Editor change event
$scope.editorChange = function (content) {
$scope.displayContent = $sce.trustAsHtml(content);
}
}
if (!isMarkdown) {
$scope.editorChange = function() {};
}
let lastSave = 0;
/**
* Start the AutoSave loop, Checks for content change
* before performing the costly AJAX request.
*/
function startAutoSave() {
currentContent.title = $('#name').val();
currentContent.html = $scope.editContent;
autoSave = $interval(() => {
// Return if manually saved recently to prevent bombarding the server
if (Date.now() - lastSave < (1000*autosaveFrequency)/2) return;
let newTitle = $('#name').val();
let newHtml = $scope.editContent;
if (newTitle !== currentContent.title || newHtml !== currentContent.html) {
currentContent.html = newHtml;
currentContent.title = newTitle;
saveDraft();
}
}, 1000 * autosaveFrequency);
}
let draftErroring = false;
/**
* Save a draft update into the system via an AJAX request.
*/
function saveDraft() {
if (!$scope.draftsEnabled) return;
let data = {
name: $('#name').val(),
html: isMarkdown ? $sce.getTrustedHtml($scope.displayContent) : $scope.editContent
};
if (isMarkdown) data.markdown = $scope.editContent;
let url = window.baseUrl('/ajax/page/' + pageId + '/save-draft');
$http.put(url, data).then(responseData => {
draftErroring = false;
let updateTime = moment.utc(moment.unix(responseData.data.timestamp)).toDate();
$scope.draftText = responseData.data.message + moment(updateTime).format('HH:mm');
if (!$scope.isNewPageDraft) $scope.isUpdateDraft = true;
showDraftSaveNotification();
lastSave = Date.now();
}, errorRes => {
if (draftErroring) return;
events.emit('error', trans('errors.page_draft_autosave_fail'));
draftErroring = true;
});
}
function showDraftSaveNotification() {
$scope.draftUpdated = true;
$timeout(() => {
$scope.draftUpdated = false;
}, 2000)
}
$scope.forceDraftSave = function() {
saveDraft();
};
// Listen to save draft events from editor
$scope.$on('save-draft', saveDraft);
/**
* Discard the current draft and grab the current page
* content from the system via an AJAX request.
*/
$scope.discardDraft = function () {
let url = window.baseUrl('/ajax/page/' + pageId);
$http.get(url).then(responseData => {
if (autoSave) $interval.cancel(autoSave);
$scope.draftText = trans('entities.pages_editing_page');
$scope.isUpdateDraft = false;
$scope.$broadcast('html-update', responseData.data.html);
$scope.$broadcast('markdown-update', responseData.data.markdown || responseData.data.html);
$('#name').val(responseData.data.name);
$timeout(() => {
startAutoSave();
}, 1000);
events.emit('success', trans('entities.pages_draft_discarded'));
});
};
}]);
};