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b74b30ef99
issue #5659 - Fixes occasional issue with `Uncaught TypeError: Cannot read property 'val' of undefined` errors appearing when navigating quickly to/from the editor. I traced the `save` action calls back to the `autoSave` method - it may warrant further investigation to find out why the throttled/debounced calls are sometimes made when the editor element is non-existent.
382 lines
13 KiB
JavaScript
382 lines
13 KiB
JavaScript
import Ember from 'ember';
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import PostModel from 'ghost/models/post';
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import boundOneWay from 'ghost/utils/bound-one-way';
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import imageManager from 'ghost/utils/ed-image-manager';
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// this array will hold properties we need to watch
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// to know if the model has been changed (`controller.isDirty`)
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var watchedProps = ['model.scratch', 'model.titleScratch', 'model.isDirty', 'model.tags.[]'];
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PostModel.eachAttribute(function (name) {
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watchedProps.push('model.' + name);
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});
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export default Ember.Mixin.create({
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postSettingsMenuController: Ember.inject.controller('post-settings-menu'),
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autoSaveId: null,
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timedSaveId: null,
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editor: null,
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submitting: false,
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notifications: Ember.inject.service(),
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init: function () {
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var self = this;
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this._super();
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window.onbeforeunload = function () {
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return self.get('isDirty') ? self.unloadDirtyMessage() : null;
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};
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},
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shouldFocusTitle: Ember.computed.alias('model.isNew'),
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shouldFocusEditor: false,
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autoSave: Ember.observer('model.scratch', function () {
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// Don't save just because we swapped out models
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if (this.get('model.isDraft') && !this.get('model.isNew')) {
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var autoSaveId,
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timedSaveId,
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saveOptions;
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saveOptions = {
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silent: true,
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backgroundSave: true
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};
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timedSaveId = Ember.run.throttle(this, 'send', 'save', saveOptions, 60000, false);
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this.set('timedSaveId', timedSaveId);
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autoSaveId = Ember.run.debounce(this, 'send', 'save', saveOptions, 3000);
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this.set('autoSaveId', autoSaveId);
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}
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}),
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/**
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* By default, a post will not change its publish state.
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* Only with a user-set value (via setSaveType action)
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* can the post's status change.
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*/
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willPublish: boundOneWay('model.isPublished'),
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// set by the editor route and `isDirty`. useful when checking
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// whether the number of tags has changed for `isDirty`.
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previousTagNames: null,
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tagNames: Ember.computed('model.tags.@each.name', function () {
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return this.get('model.tags').mapBy('name');
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}),
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postOrPage: Ember.computed('model.page', function () {
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return this.get('model.page') ? 'Page' : 'Post';
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}),
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// compares previousTagNames to tagNames
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tagNamesEqual: function () {
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var tagNames = this.get('tagNames'),
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previousTagNames = this.get('previousTagNames'),
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hashCurrent,
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hashPrevious;
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// beware! even if they have the same length,
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// that doesn't mean they're the same.
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if (tagNames.length !== previousTagNames.length) {
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return false;
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}
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// instead of comparing with slow, nested for loops,
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// perform join on each array and compare the strings
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hashCurrent = tagNames.join('');
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hashPrevious = previousTagNames.join('');
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return hashCurrent === hashPrevious;
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},
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// a hook created in editor-base-route's setupController
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modelSaved: function () {
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var model = this.get('model');
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// safer to updateTags on save in one place
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// rather than in all other places save is called
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model.updateTags();
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// set previousTagNames to current tagNames for isDirty check
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this.set('previousTagNames', this.get('tagNames'));
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// `updateTags` triggers `isDirty => true`.
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// for a saved model it would otherwise be false.
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// if the two "scratch" properties (title and content) match the model, then
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// it's ok to set isDirty to false
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if (model.get('titleScratch') === model.get('title') &&
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model.get('scratch') === model.get('markdown')) {
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this.set('isDirty', false);
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}
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},
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// an ugly hack, but necessary to watch all the model's properties
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// and more, without having to be explicit and do it manually
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isDirty: Ember.computed.apply(Ember, watchedProps.concat({
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get: function () {
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var model = this.get('model'),
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markdown = model.get('markdown'),
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title = model.get('title'),
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titleScratch = model.get('titleScratch'),
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scratch = this.get('editor').getValue(),
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changedAttributes;
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if (!this.tagNamesEqual()) {
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return true;
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}
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if (titleScratch !== title) {
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return true;
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}
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// since `scratch` is not model property, we need to check
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// it explicitly against the model's markdown attribute
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if (markdown !== scratch) {
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return true;
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}
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// if the Adapter failed to save the model isError will be true
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// and we should consider the model still dirty.
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if (model.get('isError')) {
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return true;
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}
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// models created on the client always return `isDirty: true`,
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// so we need to see which properties have actually changed.
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if (model.get('isNew')) {
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changedAttributes = Ember.keys(model.changedAttributes());
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if (changedAttributes.length) {
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return true;
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}
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return false;
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}
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// even though we use the `scratch` prop to show edits,
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// which does *not* change the model's `isDirty` property,
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// `isDirty` will tell us if the other props have changed,
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// as long as the model is not new (model.isNew === false).
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return model.get('isDirty');
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},
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set: function (key, value) {
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return value;
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}
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})),
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// used on window.onbeforeunload
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unloadDirtyMessage: function () {
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return '==============================\n\n' +
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'Hey there! It looks like you\'re in the middle of writing' +
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' something and you haven\'t saved all of your content.' +
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'\n\nSave before you go!\n\n' +
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'==============================';
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},
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// TODO: This has to be moved to the I18n localization file.
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// This structure is supposed to be close to the i18n-localization which will be used soon.
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messageMap: {
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errors: {
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post: {
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published: {
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published: 'Update failed.',
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draft: 'Saving failed.'
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},
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draft: {
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published: 'Publish failed.',
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draft: 'Saving failed.'
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}
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}
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},
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success: {
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post: {
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published: {
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published: 'Updated.',
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draft: 'Saved.'
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},
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draft: {
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published: 'Published!',
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draft: 'Saved.'
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}
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}
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}
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},
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// TODO: Update for new notification click-action API
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showSaveNotification: function (prevStatus, status, delay) {
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var message = this.messageMap.success.post[prevStatus][status],
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path = this.get('model.absoluteUrl'),
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type = this.get('postOrPage'),
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notifications = this.get('notifications');
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if (status === 'published') {
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message += ` <a href="${path}">View ${type}</a>`;
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}
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notifications.showNotification(message.htmlSafe(), {delayed: delay});
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},
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showErrorNotification: function (prevStatus, status, errors, delay) {
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var message = this.messageMap.errors.post[prevStatus][status],
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error = (errors && errors[0] && errors[0].message) || 'Unknown Error',
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notifications = this.get('notifications');
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message += '<br />' + error;
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notifications.showAlert(message.htmlSafe(), {type: 'error', delayed: delay});
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},
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actions: {
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save: function (options) {
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var status,
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prevStatus = this.get('model.status'),
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isNew = this.get('model.isNew'),
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autoSaveId = this.get('autoSaveId'),
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timedSaveId = this.get('timedSaveId'),
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self = this,
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psmController = this.get('postSettingsMenuController'),
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promise,
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notifications = this.get('notifications');
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options = options || {};
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// when navigating quickly between pages autoSave will occasionally
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// try to run after the editor has been torn down so bail out here
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// before we throw errors
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if (!this.get('editor').$()) {
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return 0;
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}
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this.toggleProperty('submitting');
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if (options.backgroundSave) {
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// do not allow a post's status to be set to published by a background save
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status = 'draft';
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} else {
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status = this.get('willPublish') ? 'published' : 'draft';
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}
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if (autoSaveId) {
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Ember.run.cancel(autoSaveId);
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this.set('autoSaveId', null);
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}
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if (timedSaveId) {
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Ember.run.cancel(timedSaveId);
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this.set('timedSaveId', null);
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}
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notifications.closeNotifications();
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// Set the properties that are indirected
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// set markdown equal to what's in the editor, minus the image markers.
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this.set('model.markdown', this.get('editor').getValue());
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this.set('model.status', status);
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// Set a default title
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if (!this.get('model.titleScratch').trim()) {
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this.set('model.titleScratch', '(Untitled)');
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}
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this.set('model.title', this.get('model.titleScratch'));
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this.set('model.meta_title', psmController.get('metaTitleScratch'));
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this.set('model.meta_description', psmController.get('metaDescriptionScratch'));
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if (!this.get('model.slug')) {
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// Cancel any pending slug generation that may still be queued in the
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// run loop because we need to run it before the post is saved.
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Ember.run.cancel(psmController.get('debounceId'));
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psmController.generateAndSetSlug('model.slug');
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}
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promise = Ember.RSVP.resolve(psmController.get('lastPromise')).then(function () {
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return self.get('model').save(options).then(function (model) {
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if (!options.silent) {
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self.showSaveNotification(prevStatus, model.get('status'), isNew ? true : false);
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}
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self.toggleProperty('submitting');
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return model;
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});
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}).catch(function (errors) {
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if (!options.silent) {
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self.showErrorNotification(prevStatus, self.get('model.status'), errors);
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}
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self.set('model.status', prevStatus);
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self.toggleProperty('submitting');
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return self.get('model');
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});
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psmController.set('lastPromise', promise);
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return promise;
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},
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setSaveType: function (newType) {
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if (newType === 'publish') {
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this.set('willPublish', true);
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} else if (newType === 'draft') {
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this.set('willPublish', false);
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}
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},
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// set from a `sendAction` on the gh-ed-editor component,
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// so that we get a reference for handling uploads.
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setEditor: function (editor) {
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this.set('editor', editor);
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},
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// fired from the gh-ed-preview component when an image upload starts
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disableEditor: function () {
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this.get('editor').disable();
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},
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// fired from the gh-ed-preview component when an image upload finishes
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enableEditor: function () {
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this.get('editor').enable();
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},
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// Match the uploaded file to a line in the editor, and update that line with a path reference
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// ensuring that everything ends up in the correct place and format.
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handleImgUpload: function (e, resultSrc) {
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var editor = this.get('editor'),
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editorValue = editor.getValue(),
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replacement = imageManager.getSrcRange(editorValue, e.target),
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cursorPosition;
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if (replacement) {
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cursorPosition = replacement.start + resultSrc.length + 1;
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if (replacement.needsParens) {
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resultSrc = '(' + resultSrc + ')';
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}
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editor.replaceSelection(resultSrc, replacement.start, replacement.end, cursorPosition);
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}
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},
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autoSaveNew: function () {
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if (this.get('model.isNew')) {
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this.send('save', {silent: true, backgroundSave: true});
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}
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},
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updateEditorScrollInfo: function (scrollInfo) {
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this.set('editorScrollInfo', scrollInfo);
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},
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updateHeight: function (height) {
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this.set('height', height);
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}
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}
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});
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