Ghost/ghost/admin/assets/lib/uploader.js
cobbspur 2f4d29bf72 Added error handling
- refactored to build dropzone elements individually
- reduced markdown in ghostdown file
- added Try again button on failure of image upload
2013-08-18 21:37:03 +01:00

211 lines
10 KiB
JavaScript

/*global jQuery, Ghost, document, Image, window */
(function ($) {
"use strict";
var UploadUi,
$progress = $('<div />', {
"class" : "js-upload-progress progress progress-success active",
"style": "opacity:0",
"role": "progressbar",
"aria-valuemin": "0",
"aria-valuemax": "100"
}).append($("<div />", {
"class": "js-upload-progress-bar bar",
"style": "width:0%"
}));
UploadUi = function ($dropzone, settings) {
var source,
$link = $('<a class="js-edit-image image-edit" href="#" >' +
'<img src="/public/assets/img/add-image.png" width="16" height="16" alt="add, edit"></a>'),
$back = $('<a class="js-return-image image-edit" href="#" >' +
'<img src="/public/assets/img/return-image.png" width="16" height="16" alt="add, edit"></a>');
$.extend(this, {
bindFileUpload: function () {
var self = this;
$dropzone.find('.js-fileupload').fileupload().fileupload("option", {
url: '/ghost/upload',
add: function (e, data) {
$progress.find('.js-upload-progress-bar').removeClass('fail');
$dropzone.trigger('uploadstart');
$dropzone.find('a.js-return-image').remove();
$dropzone.find('span.media, div.description, a.image-url, a.image-webcam, div.js-fail, button.js-fail')
.animate({opacity: 0}, 250, function () {
if (settings.progressbar) {
$dropzone.find('div.js-fail').after($progress);
$progress.animate({opacity: 100}, 250);
}
data.submit();
});
},
dropZone: $dropzone,
progressall: function (e, data) {
var progress = parseInt(data.loaded / data.total * 100, 10);
if (!settings.editor) {$progress.find('div.js-progress').css({"position": "absolute", "top": "40px"}); }
if (settings.progressbar) {
$dropzone.trigger("uploadprogress", [progress, data]);
$progress.find('.js-upload-progress-bar').css('width', progress + '%');
}
},
done: function (e, data) {
function showImage(width, height) {
$dropzone.find('img.js-upload-target').attr({"width": width, "height": height}).css({"display": "block"});
$dropzone.find('.fileupload-loading').removeClass('fileupload-loading');
$dropzone.css({"height": "auto"});
if (!$dropzone.find('a.js-edit-image')[0]) {
$link.css({"opacity": 100});
$dropzone.find('.js-upload-target').after($link);
}
$dropzone.delay(250).animate({opacity: 100}, 1000, function () {
self.init();
});
}
function animateDropzone($img) {
$dropzone.animate({opacity: 0}, 250, function () {
$dropzone.removeClass('image-uploader').addClass('pre-image-uploader');
$dropzone.css({minHeight: 0});
self.removeExtras();
$dropzone.animate({height: $img.height()}, 250, function () {
showImage($img.width(), $img.height());
});
});
}
function failedImageUpload() {
$progress.find('.js-upload-progress-bar').addClass('fail');
$dropzone.find('div.js-fail').animate({"opacity": 100}, 1500);
$dropzone.find('button.js-fail').animate({"opacity": 100}, 1500).on('click', function () {
$dropzone.css({minHeight: 0});
if (source !== undefined && !$dropzone.find('a.js-return-image')[0]) {
console.log("source:", source);
$back.css({"opacity": 100});
$dropzone.find('.js-upload-target').after($back);
}
self.removeExtras();
self.init();
});
}
function preLoadImage() {
var $img = $dropzone.find('img.js-upload-target')
.attr({'src': '', "width": 'auto', "height": 'auto'});
if (data.result === "Invalid filetype") {
$dropzone.trigger("uploadfailed", [data.result]);
failedImageUpload();
} else {
$progress.animate({opacity: 0}, 250, function () {
$dropzone.find('span.media').after('<img class="fileupload-loading" src="/public/img/loadingcat.gif" />');
if (!settings.editor) {$progress.find('.fileupload-loading').css({"top": "56px"}); }
});
$dropzone.trigger("uploadsuccess", [data.result]);
$img.one('load', function () { animateDropzone($img); })
.attr('src', data.result);
}
}
preLoadImage();
}
});
},
buildExtras: function () {
if (!$dropzone.find('span.media')[0]) {
$dropzone.prepend('<span class="media"><span class="hidden">Image Upload</span></span>');
}
if (!$dropzone.find('div.description')[0]) {
$dropzone.append('<div class="description">Add image</div>');
}
if (!$dropzone.find('div.js-fail')[0]) {
$dropzone.append('<div class="js-fail failed" style="opacity: 0">Something went wrong :(</div>');
}
if (!$dropzone.find('button.js-fail')[0]) {
$dropzone.append('<button class="js-fail button-add" style="opacity: 0">Try Again</button>');
}
if (!$dropzone.find('a.image-url')[0]) {
$dropzone.append('<a class="image-url" title="Add image from URL"><span class="hidden">URL</span></a>');
}
if (!$dropzone.find('a.image-webcam')[0]) {
$dropzone.append('<a class="image-webcam" title="Add image from webcam"><span class="hidden">Webcam</span></a>');
}
},
removeExtras: function () {
$dropzone.find('div.description, span.media, div.js-upload-progress, a.image-url, a.image-webcam, div.js-fail, button.js-fail')
.remove();
},
initWithDropzone: function () {
var self = this;
//This is the start point if no image exists
$dropzone.find('img.js-upload-target').css({"display": "none"});
$dropzone.removeClass('pre-image-uploader').addClass('image-uploader');
this.buildExtras();
$dropzone.find('a.js-edit-image').remove();
$back.on('click', function () {
$dropzone.find('a.js-return-image').remove();
$dropzone.find('img.js-upload-target').attr({"src": source}).css({"display": "block"});
self.removeExtras();
$dropzone.removeClass('image-uploader').addClass('pre-image-uploader');
self.init();
});
this.bindFileUpload();
},
initWithImage: function () {
var self = this;
// This is the start point if an image already exists
source = $dropzone.find('img.js-upload-target').attr('src');
$dropzone.removeClass('image-uploader').addClass('pre-image-uploader');
if (!$dropzone.find('a.js-edit-image')[0]) {
$link.css({"opacity": 100});
$dropzone.find('.js-upload-target').after($link);
}
$link.on('click', function () {
$dropzone.find('a.js-edit-image').remove();
$dropzone.find('img.js-upload-target').attr({"src": ""}).css({"display": "none"});
$back.css({"cursor": "pointer", "z-index": 9999, "opacity": 100});
$dropzone.find('.js-upload-target').after($back);
self.init();
});
},
init: function () {
// First check if field image is defined by checking for js-upload-target class
if (!$dropzone.find('img.js-upload-target')[0]) {
// This ensures there is an image we can hook into to display uploaded image
$dropzone.prepend('<img class="js-upload-target" style="display: none" src="" />');
}
if ($dropzone.find('img.js-upload-target').attr('src') === '') {
this.initWithDropzone();
} else {
this.initWithImage();
}
}
});
};
$.fn.upload = function (options) {
var settings = $.extend({
progressbar: true,
editor: false
}, options);
return this.each(function () {
var $dropzone = $(this),
ui;
ui = new UploadUi($dropzone, settings);
ui.init();
});
};
}(jQuery));