Sindbad~EG File Manager
/* global ns Cropper */
H5PEditor.ImageEditingPopup = (function ($, EventDispatcher) {
var instanceCounter = 0;
var scriptsLoaded = false;
/**
* Popup for editing images
*
* @param {number} [ratio] Ratio that cropping must keep
* @constructor
*/
function ImageEditingPopup(ratio) {
var self = this;
EventDispatcher.call(this);
var uniqueId = instanceCounter;
var isShowing = false;
var isReset = false;
var topOffset = 0;
var maxWidth;
var maxHeight;
// Create elements
var background = document.createElement('div');
background.className = 'h5p-editing-image-popup-background hidden';
var popup = document.createElement('div');
popup.className = 'h5p-editing-image-popup';
background.appendChild(popup);
var header = document.createElement('div');
header.className = 'h5p-editing-image-header';
popup.appendChild(header);
var headerTitle = document.createElement('div');
headerTitle.className = 'h5p-editing-image-header-title';
headerTitle.textContent = H5PEditor.t('core', 'editImage');
header.appendChild(headerTitle);
var headerButtons = document.createElement('div');
headerButtons.className = 'h5p-editing-image-header-buttons';
header.appendChild(headerButtons);
var editingContainer = document.createElement('div');
editingContainer.className = 'h5p-editing-image-editing-container';
popup.appendChild(editingContainer);
var imageLoading = document.createElement('div');
imageLoading.className = 'h5p-editing-image-loading';
imageLoading.textContent = ns.t('core', 'loadingImageEditor');
popup.appendChild(imageLoading);
// Create editing image
var editingImage = new Image();
editingImage.className = 'h5p-editing-image hidden';
editingImage.id = 'h5p-editing-image-' + uniqueId;
editingContainer.appendChild(editingImage);
// Close popup on background click
background.addEventListener('click', function () {
this.hide();
}.bind(this));
// Prevent closing popup
popup.addEventListener('click', function (e) {
e.stopPropagation();
});
// Make sure each ImageEditingPopup instance has a unique ID
instanceCounter += 1;
/**
* Create header button
*
* @param {string} coreString Must be specified in core translations
* @param {string} className Unique button identifier that will be added to classname
* @param {function} clickEvent OnClick function
*/
var createButton = function (coreString, className, clickEvent) {
var button = document.createElement('button');
button.textContent = ns.t('core', coreString);
button.className = className;
button.addEventListener('click', clickEvent);
headerButtons.appendChild(button);
};
/**
* Set max width and height for image editing tool
*/
var setCropperDimensions = function () {
// Set max dimensions
var dims = ImageEditingPopup.staticDimensions;
maxWidth = background.offsetWidth - dims.backgroundPaddingWidth;
// Only use 65% of window height
var maxScreenHeight = window.innerHeight * dims.maxScreenHeightPercentage;
// Calculate editor max height
var editorHeight = background.offsetHeight - dims.backgroundPaddingHeight - dims.popupHeaderHeight;
// Use smallest of screen height and editor height,
// we don't want to overflow editor or screen
maxHeight = maxScreenHeight < editorHeight ? maxScreenHeight : editorHeight;
maxHeight = Math.min(maxHeight, maxWidth); // prevent maxHeight from getting too big in long editors like h5p column
};
/**
* Load a script dynamically
*
* @param {string} path Path to script
* @param {function} [callback]
*/
var loadScript = function (path, callback) {
$.ajax({
url: path,
dataType: 'script',
success: function () {
if (callback) {
callback();
}
},
async: true
});
};
/**
* Load scripts dynamically
*/
var loadScripts = function (callback) {
loadScript(H5PEditor.basePath + 'libs/cropper.js', function () {
scriptsLoaded = true;
if (callback) {
callback();
}
});
};
/**
* Grab canvas data and pass data to listeners.
*/
var saveImage = () => {
var convertData = function () {
const finished = function (blob) {
self.trigger('savedImage', blob);
};
if (self.cropper.mirror.toBlob) {
// Export canvas as blob to save processing time and bandwidth
self.cropper.mirror.toBlob(finished, self.mime);
}
else {
// Blob export not supported by canvas, export as dataURL and export
// to blob before uploading (saves processing resources on server)
finished(dataURLtoBlob(this.cropper.mirror.toDataURL({
format: self.mime.split('/')[1]
})));
}
};
convertData();
isReset = false;
};
/**
* Adjust popup offset.
* Make sure it is centered on top of offset.
*
* @param {Object} [offset] Offset that popup should center on.
* @param {number} [offset.top] Offset to top.
*/
this.adjustPopupOffset = function (offset) {
if (offset) {
topOffset = offset.top;
}
// Only use 65% of window height
var maxScreenHeight = window.innerHeight * 0.65;
// Calculate editor max height
var dims = ImageEditingPopup.staticDimensions;
var backgroundHeight = H5P.$body.get(0).offsetHeight - dims.backgroundPaddingHeight;
var popupHeightNoImage = dims.darkroomToolbarHeight + dims.popupHeaderHeight;
var editorHeight = backgroundHeight - popupHeightNoImage;
// Available editor height
var availableHeight = maxScreenHeight < editorHeight ? maxScreenHeight : editorHeight;
// Check if image is smaller than available height
var actualImageHeight;
if (editingImage.naturalHeight < availableHeight) {
actualImageHeight = editingImage.naturalHeight;
}
else {
actualImageHeight = availableHeight;
// We must check ratio as well
var imageRatio = editingImage.naturalHeight / editingImage.naturalWidth;
var maxActualImageHeight = maxWidth * imageRatio;
if (maxActualImageHeight < actualImageHeight) {
actualImageHeight = maxActualImageHeight;
}
}
var popupHeightWImage = actualImageHeight + popupHeightNoImage;
var offsetCentered = topOffset - (popupHeightWImage / 2) -
(dims.backgroundPaddingHeight / 2);
// Min offset is 0
offsetCentered = offsetCentered > 0 ? offsetCentered : 0;
// Check that popup does not overflow editor
if (popupHeightWImage + offsetCentered > backgroundHeight) {
var newOffset = backgroundHeight - popupHeightWImage;
offsetCentered = newOffset < 0 ? 0 : newOffset;
}
popup.style.top = offsetCentered + 'px';
};
/**
* Resize cropper canvas, selector and mask.
*/
this.resizeCropper = () => {
setCropperDimensions();
this.cropper.canvas.width = maxWidth - 2; // leave out 2px for container css border
this.cropper.canvas.height = maxHeight;
this.cropper.loadImage();
this.cropper.loadMirror();
this.cropper.toggleSection('tools');
this.cropper.toggleSelector(false);
}
/**
* Create image editing tool from image.
*/
const createCropper = (image) => {
if (this.cropper) {
this.cropper.options.canvas.image = image;
this.cropper.reset();
return;
}
this.cropper = new Cropper({
uniqueId,
container: editingContainer,
canvas: {
width: maxWidth,
height: maxHeight,
background: '#2f323a',
image
},
selector: {
min: {
width: 50,
height: 50
},
mask: true
},
labels: {
rotateLeft: H5P.t('rotateLeft'),
rotateRight: H5P.t('rotateRight'),
cropImage: H5P.t('cropImage'),
confirmCrop: H5P.t('confirmCrop'),
cancelCrop: H5P.t('cancelCrop')
}
});
const classes = ['cropper-h5p-tooltip'];
H5P.Tooltip(this.cropper.buttons.rotateLeft, { text: H5P.t('rotateLeft'), classes });
H5P.Tooltip(this.cropper.buttons.rotateRight, { text: H5P.t('rotateRight'), classes });
H5P.Tooltip(this.cropper.buttons.crop, { text: H5P.t('cropImage'), classes });
// set before & after rotation events
const beforeRotation = () => {
this.cropper.sections.tools.classList.add('hidden');
this.rotationTimer = setTimeout(() => {
this.cropper.sections.tools.classList.add('wait');
this.cropper.container.style.cursor = 'wait';
this.cropper.masks.left.style.display = 'block';
this.cropper.masks.left.style.width = '100%';
this.cropper.masks.left.style.height = '100%';
}, 1000);
}
const afterRotation = () => {
clearTimeout(this.rotationTimer);
this.cropper.container.style.cursor = 'auto';
this.cropper.sections.tools.classList.remove('hidden', 'wait');
this.cropper.masks.left.style.display = 'none';
}
const oldRotate = this.cropper.rotate;
this.cropper.rotate = (rotation) => {
beforeRotation();
oldRotate(rotation, afterRotation);
}
};
/**
* Set new image in editing tool
*
* @param {string} imgSrc Source of new image
*/
this.setImage = function (imgSrc, callback) {
H5P.setSource(editingImage, imgSrc, H5PEditor.contentId);
editingImage.onload = () => {
createCropper(editingImage);
editingImage.onload = null;
imageLoading.classList.add('hidden');
if (callback) {
callback();
}
};
imageLoading.classList.remove('hidden');
editingImage.classList.add('hidden');
editingContainer.appendChild(editingImage);
};
/**
* Show popup
*
* @param {Object} [offset] Offset that popup should center on.
* @param {string} [imageSrc] Source of image that will be edited
* @param {Event} [event] Event object (button) for positioning the popup
*/
this.show = function (offset, imageSrc, event) {
const openImageEditor = () => {
H5P.$body.get(0).classList.add('h5p-editor-image-popup');
background.classList.remove('hidden');
self.trigger('initialized');
}
const alignPopup = () => {
if (event) {
let top = event.target.getBoundingClientRect().top + window.scrollY;
if (window.innerHeight - top < popup.offsetHeight) {
top = window.innerHeight - popup.offsetHeight - 58; // 48px background padding + 10px so that the popup does not touch the bottom
}
popup.style.top = top + 'px';
}
}
const imageLoaded = () => {
if (offset) {
self.adjustPopupOffset(offset);
openImageEditor();
self.resizeCropper();
window.addEventListener('resize', this.resizeCropper);
}
alignPopup();
}
H5P.$body.get(0).appendChild(background);
background.classList.remove('hidden');
setCropperDimensions();
background.classList.add('hidden');
if (imageSrc) {
// Load image editing scripts dynamically
if (!scriptsLoaded) {
loadScripts(() => self.setImage(imageSrc, imageLoaded));
}
else {
self.setImage(imageSrc, imageLoaded);
}
}
else {
openImageEditor();
alignPopup();
}
isShowing = true;
};
/**
* Hide popup
*/
this.hide = () => {
isShowing = false;
H5P.$body.get(0).classList.remove('h5p-editor-image-popup');
background.classList.add('hidden');
H5P.$body.get(0).removeChild(background);
window.removeEventListener('resize', this.resizeCropper);
};
/**
* Toggle popup visibility
*/
this.toggle = function () {
if (isShowing) {
this.hide();
}
else {
this.show();
}
};
// Create header buttons
createButton('resetToOriginalLabel', 'h5p-editing-image-reset-button h5p-remove', function () {
self.trigger('resetImage');
isReset = true;
});
createButton('cancelLabel', 'h5p-editing-image-cancel-button', function () {
self.trigger('canceled');
self.hide();
self.cropper.toggleSelector(false);
});
createButton('saveLabel', 'h5p-editing-image-save-button h5p-done', function () {
if (self.cropper.selector.style.display !== 'none') {
self.cropper.crop(() => {
self.cropper.toggleSelector(false);
saveImage();
self.hide();
});
}
else {
saveImage();
self.hide();
}
});
}
ImageEditingPopup.prototype = Object.create(EventDispatcher.prototype);
ImageEditingPopup.prototype.constructor = ImageEditingPopup;
ImageEditingPopup.staticDimensions = {
backgroundPaddingWidth: 32,
backgroundPaddingHeight: 96,
maxScreenHeightPercentage: 0.65,
popupHeaderHeight: 60
};
/**
* Convert a data URL(base64) into blob.
*
* @param {string} dataURL
* @return {Blob}
*/
const dataURLtoBlob = function (dataURL) {
const split = dataURL.split(',');
// First part is the mime type
const mime = split[0].match(/data:(.*);base64/i)[1];
// Second part is the base64 data
const bytes = atob(split[1]);
// Convert string into char code array
const bits = new Uint8Array(bytes.length);
for (let i = 0; i < bytes.length; i++) {
bits[i] = bytes.charCodeAt(i);
}
// Make the codes into a Blob, and we're done!
return new Blob([bits], {
type: mime
});
}
return ImageEditingPopup;
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Sindbad File Manager Version 1.0, Coded By Sindbad EG ~ The Terrorists