Ghost/ghost/admin/mixins/editor-base-controller.js

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/* global console */
import MarkerManager from 'ghost/mixins/marker-manager';
import PostModel from 'ghost/models/post';
import boundOneWay from 'ghost/utils/bound-one-way';
// this array will hold properties we need to watch
// to know if the model has been changed (`controller.isDirty`)
var watchedProps = ['scratch', 'titleScratch', 'model.isDirty'];
PostModel.eachAttribute(function (name) {
watchedProps.push('model.' + name);
});
// watch if number of tags changes on the model
watchedProps.push('tags.[]');
var EditorControllerMixin = Ember.Mixin.create(MarkerManager, {
needs: ['post-tags-input'],
init: function () {
var self = this;
this._super();
window.onbeforeunload = function () {
return self.get('isDirty') ? self.unloadDirtyMessage() : null;
};
},
/**
* By default, a post will not change its publish state.
* Only with a user-set value (via setSaveType action)
* can the post's status change.
*/
willPublish: boundOneWay('isPublished'),
// set by the editor route and `isDirty`. useful when checking
// whether the number of tags has changed for `isDirty`.
previousTagNames: null,
tagNames: Ember.computed('tags.[]', function () {
return this.get('tags').mapBy('name');
}),
// compares previousTagNames to tagNames
tagNamesEqual: function () {
var tagNames = this.get('tagNames'),
previousTagNames = this.get('previousTagNames'),
hashCurrent,
hashPrevious;
// beware! even if they have the same length,
// that doesn't mean they're the same.
if (tagNames.length !== previousTagNames.length) {
return false;
}
// instead of comparing with slow, nested for loops,
// perform join on each array and compare the strings
hashCurrent = tagNames.join('');
hashPrevious = previousTagNames.join('');
return hashCurrent === hashPrevious;
},
// a hook created in editor-route-base's setupController
modelSaved: function () {
var model = this.get('model');
// safer to updateTags on save in one place
// rather than in all other places save is called
model.updateTags();
// set previousTagNames to current tagNames for isDirty check
this.set('previousTagNames', this.get('tagNames'));
// `updateTags` triggers `isDirty => true`.
// for a saved model it would otherwise be false.
// if the two "scratch" properties (title and content) match the model, then
// it's ok to set isDirty to false
if (this.get('titleScratch') === model.get('title') &&
this.get('scratch') === model.get('markdown')) {
this.set('isDirty', false);
}
},
// an ugly hack, but necessary to watch all the model's properties
// and more, without having to be explicit and do it manually
isDirty: Ember.computed.apply(Ember, watchedProps.concat(function (key, value) {
if (arguments.length > 1) {
return value;
}
var model = this.get('model'),
markdown = this.get('markdown'),
title = this.get('title'),
titleScratch = this.get('titleScratch'),
scratch = this.getMarkdown().withoutMarkers,
changedAttributes;
if (!this.tagNamesEqual()) {
return true;
}
if (titleScratch !== title) {
return true;
}
// since `scratch` is not model property, we need to check
// it explicitly against the model's markdown attribute
if (markdown !== scratch) {
return true;
}
// models created on the client always return `isDirty: true`,
// so we need to see which properties have actually changed.
if (model.get('isNew')) {
changedAttributes = Ember.keys(model.changedAttributes());
if (changedAttributes.length) {
return true;
}
return false;
}
// even though we use the `scratch` prop to show edits,
// which does *not* change the model's `isDirty` property,
// `isDirty` will tell us if the other props have changed,
// as long as the model is not new (model.isNew === false).
if (model.get('isDirty')) {
return true;
}
return false;
})),
// used on window.onbeforeunload
unloadDirtyMessage: function () {
return '==============================\n\n' +
'Hey there! It looks like you\'re in the middle of writing' +
' something and you haven\'t saved all of your content.' +
'\n\nSave before you go!\n\n' +
'==============================';
},
//TODO: This has to be moved to the I18n localization file.
//This structure is supposed to be close to the i18n-localization which will be used soon.
messageMap: {
errors: {
post: {
published: {
'published': 'Update failed.',
'draft': 'Saving failed.'
},
draft: {
'published': 'Publish failed.',
'draft': 'Saving failed.'
}
}
},
success: {
post: {
published: {
'published': 'Updated.',
'draft': 'Saved.'
},
draft: {
'published': 'Published!',
'draft': 'Saved.'
}
}
}
},
showSaveNotification: function (prevStatus, status, delay) {
var message = this.messageMap.success.post[prevStatus][status];
this.notifications.showSuccess(message, { delayed: delay });
},
showErrorNotification: function (prevStatus, status, errors, delay) {
var message = this.messageMap.errors.post[prevStatus][status];
message += '<br />' + errors[0].message;
this.notifications.showError(message, { delayed: delay });
},
2014-08-08 17:30:51 +04:00
shouldFocusTitle: Ember.computed('model', function () {
return !!this.get('model.isNew');
}),
actions: {
save: function () {
var status = this.get('willPublish') ? 'published' : 'draft',
prevStatus = this.get('status'),
isNew = this.get('isNew'),
self = this;
self.notifications.closePassive();
// ensure an incomplete tag is finalised before save
this.get('controllers.post-tags-input').send('addNewTag');
// Set the properties that are indirected
// set markdown equal to what's in the editor, minus the image markers.
this.set('markdown', this.getMarkdown().withoutMarkers);
this.set('title', this.get('titleScratch'));
this.set('status', status);
return this.get('model').save().then(function (model) {
self.showSaveNotification(prevStatus, model.get('status'), isNew ? true : false);
return model;
}).catch(function (errors) {
self.showErrorNotification(prevStatus, self.get('status'), errors);
self.set('status', prevStatus);
return Ember.RSVP.reject(errors);
});
},
setSaveType: function (newType) {
if (newType === 'publish') {
this.set('willPublish', true);
} else if (newType === 'draft') {
this.set('willPublish', false);
} else {
console.warn('Received invalid save type; ignoring.');
}
},
// set from a `sendAction` on the codemirror component,
// so that we get a reference for handling uploads.
setCodeMirror: function (codemirrorComponent) {
var codemirror = codemirrorComponent.get('codemirror');
this.set('codemirrorComponent', codemirrorComponent);
this.set('codemirror', codemirror);
},
// fired from the gh-markdown component when an image upload starts
disableCodeMirror: function () {
this.get('codemirrorComponent').disableCodeMirror();
},
// fired from the gh-markdown component when an image upload finishes
enableCodeMirror: function () {
this.get('codemirrorComponent').enableCodeMirror();
},
// Match the uploaded file to a line in the editor, and update that line with a path reference
// ensuring that everything ends up in the correct place and format.
handleImgUpload: function (e, result_src) {
var editor = this.get('codemirror'),
line = this.findLine(Ember.$(e.currentTarget).attr('id')),
lineNumber = editor.getLineNumber(line),
match = line.text.match(/\([^\n]*\)?/),
replacement = '(http://)';
if (match) {
// simple case, we have the parenthesis
editor.setSelection(
{line: lineNumber, ch: match.index + 1},
{line: lineNumber, ch: match.index + match[0].length - 1}
);
} else {
match = line.text.match(/\]/);
if (match) {
editor.replaceRange(
replacement,
{line: lineNumber, ch: match.index + 1},
{line: lineNumber, ch: match.index + 1}
);
editor.setSelection(
{line: lineNumber, ch: match.index + 2},
{line: lineNumber, ch: match.index + replacement.length }
);
}
}
editor.replaceSelection(result_src);
},
// Make sure editor starts with markdown shown
isPreview: false,
togglePreview: function (preview) {
this.set('isPreview', preview);
}
}
});
export default EditorControllerMixin;