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Implement a Generic Uploader - #2886
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@lholmquist
lholmquist committed Jun 7, 2014
1 parent a38469e commit 6d775fd
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3 changes: 3 additions & 0 deletions Gruntfile.js
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Expand Up @@ -504,6 +504,9 @@ var path = require('path'),
'bower_components/showdown/src/showdown.js',
'bower_components/moment/moment.js',

'bower_components/jquery-ui/ui/jquery-ui.js',
'bower_components/jquery-file-upload/js/jquery.fileupload.js',

'core/shared/lib/showdown/extensions/ghostimagepreview.js',
'core/shared/lib/showdown/extensions/ghostgfm.js',
]
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262 changes: 262 additions & 0 deletions core/client/assets/lib/uploader.js
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@@ -0,0 +1,262 @@
import ghostPaths from 'ghost/utils/ghost-paths';

var UploadUi,
upload,
Ghost = ghostPaths();


UploadUi = function ($dropzone, settings) {
var $url = '<div class="js-url"><input class="url js-upload-url" type="url" placeholder="http://"/></div>',
$cancel = '<a class="image-cancel js-cancel" title="Delete"><span class="hidden">Delete</span></a>',
$progress = $('<div />', {
'class' : 'js-upload-progress progress progress-success active',
'role': 'progressbar',
'aria-valuemin': '0',
'aria-valuemax': '100'
}).append($('<div />', {
'class': 'js-upload-progress-bar bar',
'style': 'width:0%'
}));

$.extend(this, {
complete: function (result) {
var self = this;

function showImage(width, height) {
$dropzone.find('img.js-upload-target').attr({'width': width, 'height': height}).css({'display': 'block'});
$dropzone.find('.fileupload-loading').remove();
$dropzone.css({'height': 'auto'});
$dropzone.delay(250).animate({opacity: 100}, 1000, function () {
$('.js-button-accept').prop('disabled', false);
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 preLoadImage() {
var $img = $dropzone.find('img.js-upload-target')
.attr({'src': '', 'width': 'auto', 'height': 'auto'});

$progress.animate({'opacity': 0}, 250, function () {
$dropzone.find('span.media').after('<img class="fileupload-loading" src="' + Ghost.subdir + '/ghost/img/loadingcat.gif" />');
if (!settings.editor) {$progress.find('.fileupload-loading').css({'top': '56px'}); }
});
$dropzone.trigger('uploadsuccess', [result]);
$img.one('load', function () {
animateDropzone($img);
}).attr('src', result);
}
preLoadImage();
},

bindFileUpload: function () {
var self = this;

$dropzone.find('.js-fileupload').fileupload().fileupload('option', {
url: Ghost.subdir + '/ghost/upload/',
headers: {
'X-CSRF-Token': $('meta[name=\'csrf-param\']').attr('content')
},
add: function (e, data) {
/*jshint unused:false*/
$('.js-button-accept').prop('disabled', true);
$dropzone.find('.js-fileupload').removeClass('right');
$dropzone.find('.js-url').remove();
$progress.find('.js-upload-progress-bar').removeClass('fail');
$dropzone.trigger('uploadstart', [$dropzone.attr('id')]);
$dropzone.find('span.media, div.description, a.image-url, a.image-webcam')
.animate({opacity: 0}, 250, function () {
$dropzone.find('div.description').hide().css({'opacity': 100});
if (settings.progressbar) {
$dropzone.find('div.js-fail').after($progress);
$progress.animate({opacity: 100}, 250);
}
data.submit();
});
},
dropZone: settings.fileStorage ? $dropzone : null,
progressall: function (e, data) {
/*jshint unused:false*/
var progress = parseInt(data.loaded / data.total * 100, 10);
if (!settings.editor) {$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 + '%');
}
},
fail: function (e, data) {
/*jshint unused:false*/
$('.js-button-accept').prop('disabled', false);
$dropzone.trigger('uploadfailure', [data.result]);
$dropzone.find('.js-upload-progress-bar').addClass('fail');
if (data.jqXHR.status === 413) {
$dropzone.find('div.js-fail').text('The image you uploaded was larger than the maximum file size your server allows.');
} else if (data.jqXHR.status === 415) {
$dropzone.find('div.js-fail').text('The image type you uploaded is not supported. Please use .PNG, .JPG, .GIF, .SVG.');
} else {
$dropzone.find('div.js-fail').text('Something went wrong :(');
}
$dropzone.find('div.js-fail, button.js-fail').fadeIn(1500);
$dropzone.find('button.js-fail').on('click', function () {
$dropzone.css({minHeight: 0});
$dropzone.find('div.description').show();
self.removeExtras();
self.init();
});
},
done: function (e, data) {
/*jshint unused:false*/
self.complete(data.result);
}
});
},

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]) {
$dropzone.append('<div class="js-fail failed" style="display: none">Something went wrong :(</div>');
}
if (!$dropzone.find('button.js-fail')[0]) {
$dropzone.append('<button class="js-fail button-add" style="display: none">Try Again</button>');
}
if (!$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('span.media, div.js-upload-progress, a.image-url, a.image-upload, a.image-webcam, div.js-fail, button.js-fail, a.js-cancel').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 image-uploader-url').addClass('image-uploader');
this.removeExtras();
this.buildExtras();
this.bindFileUpload();
if (!settings.fileStorage) {
self.initUrl();
return;
}
$dropzone.find('a.image-url').on('click', function () {
self.initUrl();
});
},
initUrl: function () {
var self = this, val;
this.removeExtras();
$dropzone.addClass('image-uploader-url').removeClass('pre-image-uploader');
$dropzone.find('.js-fileupload').addClass('right');
if (settings.fileStorage) {
$dropzone.append($cancel);
}
$dropzone.find('.js-cancel').on('click', function () {
$dropzone.find('.js-url').remove();
$dropzone.find('.js-fileupload').removeClass('right');
self.removeExtras();
self.initWithDropzone();
});

$dropzone.find('div.description').before($url);

if (settings.editor) {
$dropzone.find('div.js-url').append('<button class="js-button-accept button-save">Save</button>');
}

$dropzone.find('.js-button-accept').on('click', function () {
val = $dropzone.find('.js-upload-url').val();
$dropzone.find('div.description').hide();
$dropzone.find('.js-fileupload').removeClass('right');
$dropzone.find('.js-url').remove();
if (val === '') {
$dropzone.trigger('uploadsuccess', 'http://');
self.initWithDropzone();
} else {
self.complete(val);
}
});

// Only show the toggle icon if there is a dropzone mode to go back to
if (settings.fileStorage !== false) {
$dropzone.append('<a class="image-upload" title="Add image"><span class="hidden">Upload</span></a>');
}

$dropzone.find('a.image-upload').on('click', function () {
$dropzone.find('.js-url').remove();
$dropzone.find('.js-fileupload').removeClass('right');
self.initWithDropzone();
});

},
initWithImage: function () {
var self = this;
// This is the start point if an image already exists
$dropzone.removeClass('image-uploader image-uploader-url').addClass('pre-image-uploader');
$dropzone.find('div.description').hide();
$dropzone.append($cancel);
$dropzone.find('.js-cancel').on('click', function () {
$dropzone.find('img.js-upload-target').attr({'src': ''});
$dropzone.find('div.description').show();
$dropzone.delay(2500).animate({opacity: 100}, 1000, function () {
self.init();
});

$dropzone.trigger('uploadsuccess', 'http://');
self.initWithDropzone();
});
},

init: function () {
var imageTarget = $dropzone.find('img.js-upload-target');
// First check if field image is defined by checking for js-upload-target class
if (!imageTarget[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="" />');
}
$('.js-button-accept').prop('disabled', false);
if (imageTarget.attr('src') === '' || imageTarget.attr('src') === undefined) {
this.initWithDropzone();
} else {
this.initWithImage();
}
}
});
};


upload = function (options) {
var settings = $.extend({
progressbar: true,
editor: false,
fileStorage: true
}, options);
return this.each(function () {
var $dropzone = $(this),
ui;

ui = new UploadUi($dropzone, settings);
ui.init();
});
};

export default upload;

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