127 lines
2.9 KiB
JavaScript
127 lines
2.9 KiB
JavaScript
/**
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* plugin.js
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*
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* Copyright, Moxiecode Systems AB
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* Released under LGPL License.
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*
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* License: http://www.tinymce.com/license
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* Contributing: http://www.tinymce.com/contributing
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*/
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/*global tinymce:true */
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tinymce.PluginManager.add('autosave', function(editor) {
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var settings = editor.settings, LocalStorage = tinymce.util.LocalStorage, prefix = editor.id, started;
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function parseTime(time, defaultTime) {
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var multipels = {
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s: 1000,
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m: 60000
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};
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time = /^(\d+)([ms]?)$/.exec('' + (time || defaultTime));
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return (time[2] ? multipels[time[2]] : 1) * parseInt(time, 10);
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}
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function hasDraft() {
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var time = parseInt(LocalStorage.getItem(prefix + "autosave.time"), 10) || 0;
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if (new Date().getTime() - time > settings.autosave_retention) {
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removeDraft();
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return false;
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}
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return true;
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}
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function removeDraft() {
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LocalStorage.removeItem(prefix + "autosave.draft");
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LocalStorage.removeItem(prefix + "autosave.time");
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}
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function storeDraft() {
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if (started && editor.isDirty()) {
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LocalStorage.setItem(prefix + "autosave.draft", editor.getContent({format: 'raw', no_events: true}));
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LocalStorage.setItem(prefix + "autosave.time", new Date().getTime());
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editor.fire('StoreDraft');
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}
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}
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function restoreDraft() {
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if (hasDraft()) {
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editor.setContent(LocalStorage.getItem(prefix + "autosave.draft"), {format: 'raw'});
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removeDraft();
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editor.fire('RestoreDraft');
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}
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}
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function startStoreDraft() {
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if (!started) {
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setInterval(function() {
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if (!editor.removed) {
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storeDraft();
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}
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}, settings.autosave_interval);
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started = true;
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}
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}
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settings.autosave_interval = parseTime(settings.autosave_interval, '30s');
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settings.autosave_retention = parseTime(settings.autosave_retention, '20m');
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function postRender() {
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var self = this;
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self.disabled(!hasDraft());
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editor.on('StoreDraft RestoreDraft', function() {
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self.disabled(!hasDraft());
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});
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startStoreDraft();
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}
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function restoreLastDraft() {
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editor.undoManager.beforeChange();
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restoreDraft();
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editor.undoManager.add();
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}
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editor.addButton('restoredraft', {
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title: 'Restore last draft',
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onclick: restoreLastDraft,
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onPostRender: postRender
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});
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editor.addMenuItem('restoredraft', {
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text: 'Restore last draft',
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onclick: restoreLastDraft,
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onPostRender: postRender,
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context: 'file'
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});
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this.storeDraft = storeDraft;
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// Internal unload handler will be called before the page is unloaded
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function beforeUnloadHandler() {
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var msg;
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tinymce.each(tinymce.editors, function(editor) {
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// Store a draft for each editor instance
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if (editor.plugins.autosave) {
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editor.plugins.autosave.storeDraft();
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}
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// Setup a return message if the editor is dirty
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if (!msg && editor.isDirty() && editor.getParam("autosave_ask_before_unload", true)) {
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msg = editor.translate("You have unsaved changes are you sure you want to navigate away?");
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}
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});
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return msg;
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}
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window.onbeforeunload = beforeUnloadHandler;
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}); |