462 lines
12 KiB
JavaScript
462 lines
12 KiB
JavaScript
;
|
|
|
|
//
|
|
|
|
var contented = (function() {
|
|
"use strict";
|
|
|
|
// @ref https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob
|
|
if (!HTMLCanvasElement.prototype.toBlob) {
|
|
Object.defineProperty(HTMLCanvasElement.prototype, 'toBlob', {
|
|
value: function (callback, type, quality) {
|
|
|
|
var binStr = atob( this.toDataURL(type, quality).split(',')[1] ),
|
|
len = binStr.length,
|
|
arr = new Uint8Array(len);
|
|
|
|
for (var i = 0; i < len; i++ ) {
|
|
arr[i] = binStr.charCodeAt(i);
|
|
}
|
|
|
|
callback( new Blob( [arr], {type: type || 'image/png'} ) );
|
|
}
|
|
});
|
|
}
|
|
|
|
var getCurrentScriptPath = function () {
|
|
// Determine current script path
|
|
// @ref https://stackoverflow.com/a/26023176
|
|
var scripts = document.querySelectorAll('script[src]');
|
|
var currentScript = scripts[scripts.length - 1].src;
|
|
var currentScriptChunks = currentScript.split('/');
|
|
var currentScriptFile = currentScriptChunks[currentScriptChunks.length - 1];
|
|
|
|
return currentScript.replace(currentScriptFile, '');
|
|
};
|
|
|
|
var currentScriptPath = getCurrentScriptPath();
|
|
var baseURL = currentScriptPath.replace('sdk.js', '');
|
|
|
|
return {
|
|
"loaded": false,
|
|
|
|
"baseURL": baseURL,
|
|
|
|
"__preInit": [],
|
|
|
|
/**
|
|
* initArea shows the contented upload widget over the top of a target DOM element.
|
|
*
|
|
* @param any element Drop target (string selector / DOMElement / jQuery)
|
|
* @param Function onUploaded Called with an array of upload IDs
|
|
* @param Function onClose Called when the widget is being destroyed
|
|
*/
|
|
"init": function(elementSelector, onUploaded, onClose) {
|
|
contented.__preInit.push([elementSelector, onUploaded, onClose]);
|
|
},
|
|
|
|
/**
|
|
* supportsDrop returns whether drag-and-drop is supported by this browser.
|
|
*
|
|
* @return bool
|
|
*/
|
|
"supportsDrop": function() {
|
|
return ('ondrop' in window && 'FormData' in window && 'FileReader' in window);
|
|
},
|
|
|
|
"getPreviewURL": function(id) {
|
|
return baseURL + "p/" + encodeURIComponent(id);
|
|
},
|
|
"getDownloadURL": function(id) {
|
|
return baseURL + "get/" + encodeURIComponent(id);
|
|
},
|
|
"getInfoJSONURL": function(id) {
|
|
return baseURL + "info/" + encodeURIComponent(id);
|
|
},
|
|
"getThumbnailURL": function(thumbnailType, id) {
|
|
return baseURL + "thumb/" + encodeURIComponent(thumbnailType) + "/" + encodeURIComponent(id);
|
|
},
|
|
"thumbnail": {
|
|
"small_square": "s",
|
|
"medium_square": "b",
|
|
"medium": "t",
|
|
"large": "m",
|
|
"xlarge": "l",
|
|
"xxlarge": "h"
|
|
}
|
|
};
|
|
|
|
})();
|
|
|
|
;(function() {
|
|
"use strict";
|
|
|
|
var loadScript = function(url, onLoad) {
|
|
var script = document.createElement('script');
|
|
script.onload = onLoad;
|
|
script.src = url;
|
|
document.head.appendChild(script);
|
|
};
|
|
|
|
var loadScripts = function(urls, onLoad) {
|
|
// load sequentially
|
|
var i = 0;
|
|
var loadNext = function() {
|
|
if (i === urls.length) {
|
|
onLoad();
|
|
return;
|
|
}
|
|
|
|
var url = urls[i];
|
|
i += 1;
|
|
loadScript(url, loadNext);
|
|
};
|
|
loadNext();
|
|
};
|
|
|
|
var formatBytes = function(bytes) {
|
|
var k = 1024, m = (1024*1024), g = (1024*1024*1024);
|
|
|
|
if (bytes < k) {
|
|
return bytes + " B";
|
|
} else if (bytes < m) {
|
|
return (bytes / k).toFixed(1) + " KiB";
|
|
} else if (bytes < g) {
|
|
return (bytes / m).toFixed(1) + " MiB";
|
|
} else {
|
|
return (bytes / g).toFixed(1) + " GiB";
|
|
}
|
|
};
|
|
|
|
// @ref https://stackoverflow.com/a/2117523
|
|
var guid = function uuidv4() {
|
|
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
|
|
var r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8);
|
|
return v.toString(16);
|
|
});
|
|
};
|
|
|
|
var afterScriptsLoaded = function() {
|
|
|
|
var initArea = function (elementSelector, onUploaded, onClose) {
|
|
onUploaded = onUploaded || function () { };
|
|
onClose = onClose || function () { };
|
|
|
|
if ($(elementSelector).length != 1) {
|
|
return; // should only find one element
|
|
}
|
|
var element = $(elementSelector)[0];
|
|
|
|
// <input type="hidden" name="MAX_FILE_SIZE" value="` + ret.MaxUploadBytes + `" />
|
|
|
|
// Create a new div for ourselves on top of the existing area
|
|
$.get(contented.baseURL + "about", function (ret) {
|
|
|
|
var extraText = "";
|
|
if (ret.MaxUploadBytes > 0) {
|
|
extraText = " (max " + formatBytes(ret.MaxUploadBytes) + ")";
|
|
}
|
|
|
|
$.get(contented.baseURL + "widget.html", function (widgetHtml) {
|
|
|
|
var $f = $("<div>").html(widgetHtml);
|
|
$f.find(".contented-extratext").text(extraText);
|
|
|
|
// Tab buttons
|
|
|
|
var hasSetupDrawingBoardYet = false;
|
|
var setType = function (type) {
|
|
$f.find(".contented-upload-type").removeClass("contented-upload-type-active");
|
|
$f.find(".contented-upload-type[data-upload-type=" + type + "]").addClass("contented-upload-type-active");
|
|
|
|
$f.find(".contented-upload-if").removeClass("contented-active");
|
|
$f.find(".contented-if-" + type).addClass("contented-active");
|
|
|
|
if (type == "drag") {
|
|
enablePasteHandler();
|
|
} else {
|
|
disablePasteHandler();
|
|
}
|
|
|
|
if (type == "drawing" && !hasSetupDrawingBoardYet) {
|
|
setupDrawingBoard();
|
|
hasSetupDrawingBoardYet = true;
|
|
}
|
|
};
|
|
|
|
$f.find(".contented-upload-type").click(function () {
|
|
setType($(this).attr('data-upload-type'));
|
|
});
|
|
|
|
// Widget positioning
|
|
|
|
var $element = $(element);
|
|
var offset = $element.offset();
|
|
|
|
$f.css({
|
|
'position': 'absolute',
|
|
'left': offset.left + "px",
|
|
'top': offset.top + "px",
|
|
'width': $element.width() + "px",
|
|
'min-width': $element.width() + "px",
|
|
'max-width': $element.width() + "px",
|
|
'height': $element.height() + "px",
|
|
'min-height': $element.height() + "px",
|
|
'max-height': $element.height() + "px"
|
|
});
|
|
|
|
// Drag and drop support
|
|
|
|
$f.find('.contented').on('dragover dragenter', function (e) {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
$(this).addClass('is-dragging');
|
|
});
|
|
|
|
$f.find('.contented').on('dragleave dragend', function (e) {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
$(this).removeClass('is-dragging');
|
|
});
|
|
|
|
$f.find('.contented').on('drop', function (e) {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
handleUploadFrom(e.originalEvent.dataTransfer.files);
|
|
});
|
|
|
|
$f.find('.contented-file-upload').on('click', function(e) {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
handleUploadFrom($(".contented-file-selector")[0].files);
|
|
});
|
|
|
|
// Pastebin
|
|
|
|
$f.find('.contented-paste-upload').on('click', function(e) {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
var blob = new Blob([$(".contented-if-paste textarea").val()], {type : 'text/plain'});
|
|
handleUploadFrom([blob]);
|
|
});
|
|
|
|
// Ctrl+V uploads
|
|
|
|
var pasteHandler = function(e) {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
|
|
var items = (e.clipboardData || e.originalEvent.clipboardData).items;
|
|
var items_length = items.length;
|
|
var blobs = [];
|
|
var handled = 0;
|
|
var haveHandled = function() {
|
|
handled += 1;
|
|
if (handled == items_length) {
|
|
|
|
if (blobs.length > 0) {
|
|
handleUploadFrom( blobs );
|
|
} else {
|
|
// alert("Pasted 0 files");
|
|
}
|
|
}
|
|
};
|
|
|
|
for (var i = 0; i < items.length; ++i) {
|
|
var item = items[i];
|
|
var mimeType = item.type;
|
|
if (item.kind === 'file') {
|
|
blobs.push(item.getAsFile());
|
|
haveHandled();
|
|
|
|
} else if (item.kind === 'string') {
|
|
item.getAsString(function(s) {
|
|
blobs.push( new Blob([s], {type : mimeType}) );
|
|
haveHandled();
|
|
});
|
|
|
|
} else {
|
|
// file|string are the only supported types in
|
|
// all browsers at the time of writing
|
|
// Ignore future possibilities
|
|
haveHandled();
|
|
}
|
|
}
|
|
};
|
|
var enablePasteHandler = function() {
|
|
document.addEventListener('paste', pasteHandler);
|
|
};
|
|
var disablePasteHandler = function() {
|
|
document.removeEventListener('paste', pasteHandler);
|
|
};
|
|
|
|
// Embed in DOM, load default area
|
|
|
|
$("body").append($f);
|
|
if (!contented.supportsDrop()) {
|
|
setType('file');
|
|
} else {
|
|
setType('drag');
|
|
}
|
|
|
|
// Drawing board
|
|
|
|
var setupDrawingBoard = function() {
|
|
|
|
$("head").append(
|
|
'<link rel="stylesheet" type="text/css" href="' + contented.baseURL + 'drawingboard-0.4.6.min.css">'
|
|
);
|
|
|
|
var db_id = "contented-drawing-area-" + guid();
|
|
var $db = $("<div>").attr('id', db_id);
|
|
|
|
DrawingBoard.Control.ContentedUpload = DrawingBoard.Control.extend({
|
|
name: 'upload',
|
|
|
|
initialize: function() {
|
|
var $el = this.$el;
|
|
|
|
$el.append('<button class="contented-drawingboard-upload">Upload</button>');
|
|
$el.on('click', '.contented-drawingboard-upload', $.proxy(function(e) {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
|
|
$el.prop('disabled', true);
|
|
$el.text('Saving...');
|
|
|
|
$db.find("canvas")[0].toBlob(function(theBlob) {
|
|
handleUploadFrom([ theBlob ]);
|
|
});
|
|
}, this));
|
|
}
|
|
});
|
|
|
|
$db.css({
|
|
//'width': $f.find(".contented-content-area").width(),
|
|
'height': $f.find(".contented-content-area").height(),
|
|
'overflow': 'hidden'
|
|
});
|
|
|
|
$f.find(".contented-drawing-area").append($db);
|
|
var db = new DrawingBoard.Board(db_id, {
|
|
'controls': [
|
|
'Color',
|
|
'Size',
|
|
'DrawingMode',
|
|
'Navigation',
|
|
'ContentedUpload'
|
|
],
|
|
'controlsPosition': 'center',
|
|
'enlargeYourContainer': false,
|
|
'webStorage': false,
|
|
'droppable': false // don't mess with existing drop support
|
|
});
|
|
|
|
};
|
|
|
|
// Close button
|
|
|
|
var ourClose = function () {
|
|
$f.remove(); // remove from dom
|
|
disablePasteHandler();
|
|
onClose(); // upstream close
|
|
};
|
|
$f.find(".contented-close").click(function () {
|
|
ourClose();
|
|
})
|
|
|
|
// Progress bar
|
|
|
|
var setProgressCaption = function(message) {
|
|
$f.find(".contented-if-progress label").text(message);
|
|
};
|
|
var setProgressPercentage = function(frc) {
|
|
$f.find(".contented-progress-element").css('width', (frc * 100) + "%");
|
|
};
|
|
|
|
// Common upload handler
|
|
|
|
var handleUploadFrom = function(files) {
|
|
|
|
setProgressCaption("Uploading, please wait...");
|
|
setProgressPercentage(0);
|
|
setType("progress");
|
|
|
|
$f.find(".contented-upload-type-selector").hide();
|
|
$f.find(".contented").removeClass('is-dragging');
|
|
|
|
// Ajax uploader
|
|
var ajaxData = new FormData();
|
|
for (var i = 0; i < files.length; ++i) {
|
|
ajaxData.append("f", files[i]);
|
|
}
|
|
|
|
// ajax request
|
|
$.ajax({
|
|
url: contented.baseURL + "upload",
|
|
type: "POST",
|
|
data: ajaxData,
|
|
dataType: 'json', // response type
|
|
cache: false,
|
|
contentType: false,
|
|
processData: false,
|
|
xhr: function() {
|
|
var xhr = $.ajaxSettings.xhr();
|
|
xhr.upload.addEventListener(
|
|
'progress',
|
|
function(ev) {
|
|
if (ev.lengthComputable) {
|
|
setProgressCaption("Uploading (" + formatBytes(ev.loaded) + " / " + formatBytes(ev.total) + ")...");
|
|
setProgressPercentage(ev.total == 0 ? 0 : ev.loaded / ev.total);
|
|
}
|
|
},
|
|
false
|
|
);
|
|
return xhr;
|
|
},
|
|
complete: function () {
|
|
setProgressPercentage(1);
|
|
},
|
|
success: function (data) {
|
|
setProgressCaption("Upload completed successfully.");
|
|
onUploaded(data);
|
|
ourClose();
|
|
},
|
|
error: function () {
|
|
setProgressCaption("Upload failed!");
|
|
}
|
|
});
|
|
|
|
}
|
|
|
|
// .
|
|
|
|
});
|
|
|
|
});
|
|
|
|
}
|
|
|
|
// Update fields in global variable
|
|
contented.init = initArea;
|
|
contented.loaded = true;
|
|
|
|
// Call initArea for all pre-initialised elements
|
|
for (var i = 0; i < contented.__preInit.length; ++i) {
|
|
initArea(contented.__preInit[i][0], contented.__preInit[i][1], contented.__preInit[i][2]);
|
|
}
|
|
};
|
|
|
|
// Load scripts
|
|
var needScripts = [];
|
|
if (typeof jQuery === "undefined") {
|
|
needScripts.push(contented.baseURL + "jquery-1.12.4.min.js");
|
|
}
|
|
if (typeof DrawingBoard === "undefined") {
|
|
needScripts.push(contented.baseURL + "drawingboard-0.4.6.min.js");
|
|
}
|
|
|
|
loadScripts(needScripts, afterScriptsLoaded);
|
|
|
|
})()
|