sdk: flatten out some nested callbacks
This commit is contained in:
parent
cb29cf83ac
commit
bf3339fec7
761
static/sdk.js
761
static/sdk.js
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@ -1,99 +1,38 @@
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;
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//
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var contented = (function() {
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;(function() {
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"use strict";
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// @ref https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob
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if (!HTMLCanvasElement.prototype.toBlob) {
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Object.defineProperty(HTMLCanvasElement.prototype, 'toBlob', {
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value: function (callback, type, quality) {
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var installPolyfills = function() {
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var binStr = atob( this.toDataURL(type, quality).split(',')[1] ),
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len = binStr.length,
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arr = new Uint8Array(len);
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// @ref https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob
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if (!HTMLCanvasElement.prototype.toBlob) {
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Object.defineProperty(HTMLCanvasElement.prototype, 'toBlob', {
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value: function (callback, type, quality) {
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for (var i = 0; i < len; i++ ) {
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arr[i] = binStr.charCodeAt(i);
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var binStr = atob( this.toDataURL(type, quality).split(',')[1] ),
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len = binStr.length,
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arr = new Uint8Array(len);
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for (var i = 0; i < len; i++ ) {
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arr[i] = binStr.charCodeAt(i);
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}
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callback( new Blob( [arr], {type: type || 'image/png'} ) );
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}
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callback( new Blob( [arr], {type: type || 'image/png'} ) );
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}
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});
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});
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}
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}
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var getCurrentScriptPath = function () {
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// Determine current script path
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// @ref https://stackoverflow.com/a/26023176
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var scripts = document.querySelectorAll('script[src]');
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var currentScript = scripts[scripts.length - 1].src;
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var currentScriptChunks = currentScript.split('/');
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var currentScriptFile = currentScriptChunks[currentScriptChunks.length - 1];
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// Determine current script path
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// @ref https://stackoverflow.com/a/26023176
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var scripts = document.querySelectorAll('script[src]');
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var currentScript = scripts[scripts.length - 1].src;
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var currentScriptChunks = currentScript.split('/');
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var currentScriptFile = currentScriptChunks[currentScriptChunks.length - 1];
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return currentScript.replace(currentScriptFile, '');
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};
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var currentScriptPath = getCurrentScriptPath();
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var baseURL = currentScriptPath.replace('sdk.js', '');
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return {
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"loaded": false,
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"baseURL": baseURL,
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"__preInit": [],
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/**
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* initArea shows the contented upload widget over the top of a target DOM element.
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*
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* @param any element Drop target (string selector / DOMElement / jQuery)
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* @param Function onUploaded Called with an array of upload IDs
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* @param Function onClose Called when the widget is being destroyed
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*/
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"init": function(elementSelector, onUploaded, onClose) {
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contented.__preInit.push([elementSelector, onUploaded, onClose]);
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},
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/**
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* supportsDrop returns whether drag-and-drop is supported by this browser.
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*
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* @return bool
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*/
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"supportsDrop": function() {
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return ('ondrop' in window && 'FormData' in window && 'FileReader' in window);
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},
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"getPreviewURL": function(id) {
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return baseURL + "p/" + encodeURIComponent(id);
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},
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"getMultiPreviewURL": function(items) {
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return baseURL + "p/" + encodeURIComponent(items.join("-"));
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},
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"getDownloadURL": function(id) {
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return baseURL + "get/" + encodeURIComponent(id);
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},
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"getInfoJSONURL": function(id) {
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return baseURL + "info/" + encodeURIComponent(id);
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},
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"getThumbnailURL": function(thumbnailType, id) {
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return baseURL + "thumb/" + encodeURIComponent(thumbnailType) + "/" + encodeURIComponent(id);
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},
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"thumbnail": {
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"small_square": "s",
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"medium_square": "b",
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"medium": "t",
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"large": "m",
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"xlarge": "l",
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"xxlarge": "h"
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}
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return currentScript.replace(currentScriptFile, '');
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};
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})();
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;(function() {
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"use strict";
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var loadScript = function(url, onLoad) {
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var script = document.createElement('script');
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script.onload = onLoad;
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@ -139,307 +78,307 @@ var contented = (function() {
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});
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};
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var afterScriptsLoaded = function() {
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var initArea = function (elementSelector, onUploaded, onClose) {
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onUploaded = onUploaded || function () { };
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onClose = onClose || function () { };
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var initArea = function (elementSelector, onUploaded, onClose) {
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onUploaded = onUploaded || function () { };
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onClose = onClose || function () { };
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if ($(elementSelector).length != 1) {
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return; // should only find one element
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}
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var element = $(elementSelector)[0];
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if ($(elementSelector).length != 1) {
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return; // should only find one element
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// <input type="hidden" name="MAX_FILE_SIZE" value="` + ret.MaxUploadBytes + `" />
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// Create a new div for ourselves on top of the existing area
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$.get(contented.baseURL + "about", function (ret) {
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var extraText = "";
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if (ret.MaxUploadBytes > 0) {
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extraText = " (max " + formatBytes(ret.MaxUploadBytes) + ")";
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}
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var element = $(elementSelector)[0];
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// <input type="hidden" name="MAX_FILE_SIZE" value="` + ret.MaxUploadBytes + `" />
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$.get(contented.baseURL + "widget.html", function (widgetHtml) {
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// Create a new div for ourselves on top of the existing area
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$.get(contented.baseURL + "about", function (ret) {
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var $f = $("<div>").html(widgetHtml);
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$f.find(".contented-extratext").text(extraText);
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// Tab buttons
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var extraText = "";
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if (ret.MaxUploadBytes > 0) {
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extraText = " (max " + formatBytes(ret.MaxUploadBytes) + ")";
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}
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var hasSetupDrawingBoardYet = false;
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var setType = function (type) {
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$f.find(".contented-upload-type").removeClass("contented-upload-type-active");
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$f.find(".contented-upload-type[data-upload-type=" + type + "]").addClass("contented-upload-type-active");
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$.get(contented.baseURL + "widget.html", function (widgetHtml) {
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var $f = $("<div>").html(widgetHtml);
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$f.find(".contented-extratext").text(extraText);
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// Tab buttons
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$f.find(".contented-upload-if").removeClass("contented-active");
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$f.find(".contented-if-" + type).addClass("contented-active");
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var hasSetupDrawingBoardYet = false;
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var setType = function (type) {
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$f.find(".contented-upload-type").removeClass("contented-upload-type-active");
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$f.find(".contented-upload-type[data-upload-type=" + type + "]").addClass("contented-upload-type-active");
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$f.find(".contented-upload-if").removeClass("contented-active");
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$f.find(".contented-if-" + type).addClass("contented-active");
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if (type == "drag") {
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enablePasteHandler();
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} else {
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disablePasteHandler();
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}
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if (type == "drawing" && !hasSetupDrawingBoardYet) {
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setupDrawingBoard();
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hasSetupDrawingBoardYet = true;
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}
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};
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$f.find(".contented-upload-type").click(function () {
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setType($(this).attr('data-upload-type'));
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});
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// Widget positioning
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var $element = $(element);
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var offset = $element.offset();
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$f.css({
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'position': 'absolute',
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'left': offset.left + "px",
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'top': offset.top + "px",
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'width': $element.width() + "px",
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'min-width': $element.width() + "px",
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'max-width': $element.width() + "px",
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'height': $element.height() + "px",
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'min-height': $element.height() + "px",
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'max-height': $element.height() + "px"
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});
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// Drag and drop support
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$f.find('.contented').on('dragover dragenter', function (e) {
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e.preventDefault();
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e.stopPropagation();
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$(this).addClass('is-dragging');
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});
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$f.find('.contented').on('dragleave dragend', function (e) {
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e.preventDefault();
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e.stopPropagation();
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$(this).removeClass('is-dragging');
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});
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$f.find('.contented').on('drop', function (e) {
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e.preventDefault();
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e.stopPropagation();
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handleUploadFrom(e.originalEvent.dataTransfer.files);
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});
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$f.find('.contented-file-upload').on('click', function(e) {
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e.preventDefault();
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e.stopPropagation();
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handleUploadFrom($(".contented-file-selector")[0].files);
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});
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// Pastebin
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$f.find('.contented-paste-upload').on('click', function(e) {
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e.preventDefault();
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e.stopPropagation();
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var blob = new Blob([$(".contented-if-paste textarea").val()], {type : 'text/plain'});
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handleUploadFrom([blob]);
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});
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// Ctrl+V uploads
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var pasteHandler = function(e) {
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e.preventDefault();
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e.stopPropagation();
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var items = (e.clipboardData || e.originalEvent.clipboardData).items;
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var items_length = items.length;
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var blobs = [];
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var handled = 0;
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var haveHandled = function() {
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handled += 1;
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if (handled == items_length) {
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if (blobs.length > 0) {
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handleUploadFrom( blobs );
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} else {
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// alert("Pasted 0 files");
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}
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}
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};
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for (var i = 0; i < items.length; ++i) {
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var item = items[i];
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var mimeType = item.type;
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if (item.kind === 'file') {
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blobs.push(item.getAsFile());
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haveHandled();
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} else if (item.kind === 'string') {
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item.getAsString(function(s) {
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blobs.push( new Blob([s], {type : mimeType}) );
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haveHandled();
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});
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} else {
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// file|string are the only supported types in
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// all browsers at the time of writing
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// Ignore future possibilities
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haveHandled();
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}
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}
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};
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var enablePasteHandler = function() {
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document.addEventListener('paste', pasteHandler);
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};
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var disablePasteHandler = function() {
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document.removeEventListener('paste', pasteHandler);
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};
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// Embed in DOM, load default area
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$("body").append($f);
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if (!contented.supportsDrop()) {
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setType('file');
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if (type == "drag") {
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enablePasteHandler();
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} else {
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setType('drag');
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}
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// Drawing board
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var setupDrawingBoard = function() {
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$("head").append(
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'<link rel="stylesheet" type="text/css" href="' + contented.baseURL + 'drawingboard-0.4.6.min.css">'
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);
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var db_id = "contented-drawing-area-" + guid();
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var $db = $("<div>").attr('id', db_id);
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DrawingBoard.Control.ContentedUpload = DrawingBoard.Control.extend({
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name: 'upload',
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initialize: function() {
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var $el = this.$el;
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$el.append('<button class="contented-drawingboard-upload">Upload</button>');
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$el.on('click', '.contented-drawingboard-upload', $.proxy(function(e) {
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e.preventDefault();
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e.stopPropagation();
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$el.prop('disabled', true);
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$el.text('Saving...');
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$db.find("canvas")[0].toBlob(function(theBlob) {
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handleUploadFrom([ theBlob ]);
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});
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}, this));
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}
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});
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$db.css({
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//'width': $f.find(".contented-content-area").width(),
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'height': $f.find(".contented-content-area").height(),
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'overflow': 'hidden'
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});
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$f.find(".contented-drawing-area").append($db);
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var db = new DrawingBoard.Board(db_id, {
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'controls': [
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'Color',
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'Size',
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'DrawingMode',
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'Navigation',
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'ContentedUpload'
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],
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'controlsPosition': 'center',
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'enlargeYourContainer': false,
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'webStorage': false,
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'droppable': false // don't mess with existing drop support
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});
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};
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// Close button
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var ourClose = function () {
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$f.remove(); // remove from dom
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disablePasteHandler();
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onClose(); // upstream close
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};
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$f.find(".contented-close").click(function () {
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ourClose();
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})
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// Progress bar
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var setProgressCaption = function(message) {
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$f.find(".contented-if-progress label").text(message);
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};
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var setProgressPercentage = function(frc) {
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$f.find(".contented-progress-element").css('width', (frc * 100) + "%");
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};
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// Common upload handler
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var handleUploadFrom = function(files) {
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setProgressCaption("Uploading, please wait...");
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setProgressPercentage(0);
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setType("progress");
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$f.find(".contented-upload-type-selector").hide();
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$f.find(".contented").removeClass('is-dragging');
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// Ajax uploader
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var ajaxData = new FormData();
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for (var i = 0; i < files.length; ++i) {
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ajaxData.append("f", files[i]);
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}
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// ajax request
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$.ajax({
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url: contented.baseURL + "upload",
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type: "POST",
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data: ajaxData,
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dataType: 'json', // response type
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cache: false,
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contentType: false,
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processData: false,
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xhr: function() {
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var xhr = $.ajaxSettings.xhr();
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xhr.upload.addEventListener(
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'progress',
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function(ev) {
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if (ev.lengthComputable) {
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setProgressCaption("Uploading (" + formatBytes(ev.loaded) + " / " + formatBytes(ev.total) + ")...");
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setProgressPercentage(ev.total == 0 ? 0 : ev.loaded / ev.total);
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}
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},
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false
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);
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return xhr;
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},
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complete: function () {
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setProgressPercentage(1);
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},
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success: function (data) {
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setProgressCaption("Upload completed successfully.");
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onUploaded(data);
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ourClose();
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},
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error: function () {
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setProgressCaption("Upload failed!");
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}
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});
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}
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// .
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if (type == "drawing" && !hasSetupDrawingBoardYet) {
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setupDrawingBoard();
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hasSetupDrawingBoardYet = true;
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}
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};
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$f.find(".contented-upload-type").click(function () {
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setType($(this).attr('data-upload-type'));
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});
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// Widget positioning
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var $element = $(element);
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var offset = $element.offset();
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$f.css({
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'position': 'absolute',
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'left': offset.left + "px",
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'top': offset.top + "px",
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'width': $element.width() + "px",
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'min-width': $element.width() + "px",
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'max-width': $element.width() + "px",
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'height': $element.height() + "px",
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'min-height': $element.height() + "px",
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'max-height': $element.height() + "px"
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});
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// Drag and drop support
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$f.find('.contented').on('dragover dragenter', function (e) {
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e.preventDefault();
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e.stopPropagation();
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$(this).addClass('is-dragging');
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});
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$f.find('.contented').on('dragleave dragend', function (e) {
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e.preventDefault();
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e.stopPropagation();
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$(this).removeClass('is-dragging');
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});
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$f.find('.contented').on('drop', function (e) {
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e.preventDefault();
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e.stopPropagation();
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handleUploadFrom(e.originalEvent.dataTransfer.files);
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});
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$f.find('.contented-file-upload').on('click', function(e) {
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e.preventDefault();
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e.stopPropagation();
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handleUploadFrom($(".contented-file-selector")[0].files);
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});
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// Pastebin
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|
||||
$f.find('.contented-paste-upload').on('click', function(e) {
|
||||
e.preventDefault();
|
||||
e.stopPropagation();
|
||||
var blob = new Blob([$(".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!");
|
||||
}
|
||||
});
|
||||
|
||||
}
|
||||
|
||||
// .
|
||||
|
||||
});
|
||||
|
||||
}
|
||||
|
||||
});
|
||||
|
||||
};
|
||||
|
||||
var afterScriptsLoaded = function() {
|
||||
|
||||
// Update fields in global variable
|
||||
contented.init = initArea;
|
||||
contented.loaded = true;
|
||||
|
|
@ -449,16 +388,78 @@ var contented = (function() {
|
|||
initArea(contented.__preInit[i][0], contented.__preInit[i][1], contented.__preInit[i][2]);
|
||||
}
|
||||
};
|
||||
|
||||
var init = function() {
|
||||
|
||||
installPolyfills();
|
||||
|
||||
var currentScriptPath = getCurrentScriptPath();
|
||||
var baseURL = currentScriptPath.replace('sdk.js', '');
|
||||
|
||||
// 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);
|
||||
window.contented = {
|
||||
"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);
|
||||
},
|
||||
"getMultiPreviewURL": function(items) {
|
||||
return baseURL + "p/" + encodeURIComponent(items.join("-"));
|
||||
},
|
||||
"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"
|
||||
}
|
||||
};
|
||||
|
||||
// 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);
|
||||
};
|
||||
|
||||
init();
|
||||
|
||||
})()
|
||||
|
|
|
|||
Loading…
Reference in New Issue