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var H5PEditor = window.H5PEditor = window.H5PEditor || {};
var ns = H5PEditor;
/**
* Adds an image upload field with image editing tool to the form.
*
* @param {Object} parent Parent widget of this widget
* @param {Object} field Semantic fields
* @param {Object} params Existing image parameters
* @param {function} setValue Function for updating parameters
* @returns {ns.widgets.image}
*/
ns.widgets.image = function (parent, field, params, setValue) {
var self = this;
// Initialize inheritance
ns.File.call(self, parent, field, params, setValue);
this.parent = parent;
this.field = field;
this.params = params;
this.setValue = setValue;
this.library = parent.library + '/' + field.name;
this.id = ns.getNextFieldId(field);
if (params !== undefined) {
this.copyright = params.copyright;
}
// Keep track of editing image
this.isEditing = false;
// Keep track of type of image that is being uploaded
this.isOriginalImage = false;
this.changes = [];
this.passReadies = true;
parent.ready(function () {
self.passReadies = false;
});
this.confirmationDialog = new H5P.ConfirmationDialog({
headerText: H5PEditor.t('core', 'removeImage'),
bodyText: H5PEditor.t('core', 'confirmImageRemoval')
});
this.confirmationDialog.on('confirmed', function () {
self.removeImage();
});
// When uploading starts
self.on('upload', function () {
// Hide edit image button
self.$editImage.addClass('hidden');
});
// When a new file has been uploaded
self.on('fileUploaded', function (event) {
// Uploaded new original image
if (self.isOriginalImage) {
delete self.params.originalImage;
self.editImagePopup.mime = self.params.mime
}
// Store width and height
self.params.width = event.data.width;
self.params.height = event.data.height;
// Show edit image button
self.$editImage.removeClass('hidden');
self.isEditing = false;
});
};
ns.widgets.image.prototype = Object.create(ns.File.prototype);
ns.widgets.image.prototype.constructor = ns.widgets.image;
/**
* Append field to the given wrapper.
*
* @param {jQuery} $wrapper
*/
ns.widgets.image.prototype.appendTo = function ($wrapper) {
var self = this;
var htmlString = '<div class="file"></div>' +
'<div class="h5p-editor-image-buttons">' +
'<button class="h5peditor-button-textual h5p-editing-image-button">' + ns.t('core', 'editImage') + '</button>';
if (!this.field.disableCopyright) {
htmlString += '<button class="h5peditor-button-textual h5p-copyright-button">' + ns.t('core', 'editCopyright') + '</button>';
}
htmlString += '</div>' +
'<div class="h5p-editor-dialog">' +
'<a href="#" class="h5p-close" title="' + ns.t('core', 'close') + '"></a>' +
'</div>';
var html = ns.createFieldMarkup(this.field, htmlString, this.id);
var $container = ns.$(html).appendTo($wrapper);
this.$item = $container;
this.$editImage = $container.find('.h5p-editing-image-button');
this.$copyrightButton = $container.find('.h5p-copyright-button');
this.$file = $container.find('.file');
this.$errors = $container.find('.h5p-errors');
this.addFile();
var $dialog = $container.find('.h5p-editor-dialog');
$container.find('.h5p-copyright-button').add($dialog.find('.h5p-close')).click(function () {
$dialog.toggleClass('h5p-open');
return false;
});
var editImagePopup = self.editImagePopup = new H5PEditor.ImageEditingPopup(this.field.ratio);
editImagePopup.on('savedImage', function (e) {
// Not editing any longer
self.isEditing = false;
// No longer an original image
self.isOriginalImage = false;
// Set current source as original image, if no original image
if (!self.params.originalImage) {
self.params.originalImage = {
path: self.params.path,
mime: self.params.mime,
height: self.params.height,
width: self.params.width
};
}
const filenameparts = self.params.path.match(/([^\/]+)\.([^#]+)/);
// Upload new image
self.upload(e.data, filenameparts[1] + '-edit.' + filenameparts[2]);
});
editImagePopup.on('resetImage', function () {
editImagePopup.setImage(self.params.originalImage ? self.params.originalImage : self.params);
});
editImagePopup.on('canceled', function () {
self.isEditing = false;
});
editImagePopup.on('initialized', function () {
// Remove throbber from image
self.$editImage.removeClass('loading');
});
$container.find('.h5p-editing-image-button').click(function () {
if (self.params && self.params.path) {
var imageSrc;
if (!self.isEditing) {
imageSrc = self.params;
self.isEditing = true;
}
self.$editImage.toggleClass('loading');
// Add throbber to image
editImagePopup.show(ns.$(this).offset(), imageSrc);
}
});
ns.File.addCopyright(self, $dialog, function (field, value) {
if (self.params !== undefined) {
self.params.copyright = value;
}
self.copyright = value;
});
};
/**
* Sync copyright.
*/
ns.widgets.image.prototype.setCopyright = function (value) {
this.copyright = this.params.copyright = value;
};
/**
* Creates thumbnail HTML and actions.
*
* @returns {boolean} True if file was added, false if file was removed
*/
ns.widgets.image.prototype.addFile = function () {
var that = this;
if (this.params === undefined) {
// No image look
let html = '<a href="#" id="' + this.id + '" class="add"';
if (this.field.description !== undefined) {
html += ' aria-describedby="' + ns.getDescriptionId(this.id) + '"';
}
html += ' title="' + ns.t('core', 'addFile') + '">' +
'<div class="h5peditor-field-file-upload-text">' + ns.t('core', 'add') + '</div>' +
'</a>'
this.$file
.html(html)
.children('.add')
.click(function () {
that.isOriginalImage = true;
that.openFileSelector();
return false;
});
// Remove edit image button
this.$editImage.addClass('hidden');
this.$copyrightButton.addClass('hidden');
this.isEditing = false;
return false;
}
var source = H5P.getPath(this.params.path, H5PEditor.contentId);
var altText = (this.field.label === undefined ? '' : this.field.label);
var fileHtmlString = '<a href="#" id="' + this.id + '" title="' + ns.t('core', 'changeFile') + '" class="thumbnail"';
if (this.field.description !== undefined) {
fileHtmlString += ' aria-describedby="' + ns.getDescriptionId(this.id) + '"';
}
fileHtmlString += '><img alt="' + altText + '"/></a>' +
'<a href="#" class="remove" title="' + ns.t('core', 'removeFile') + '"></a>';
this.$file.html(fileHtmlString)
.children(':eq(0)')
.click(function () {
that.isOriginalImage = true;
that.openFileSelector();
return false;
})
.children('img')
.attr('src', source)
.end()
.next()
.click(function () {
that.confirmRemovalDialog.show(that.$file.offset().top);
return false;
});
var $img = this.$file.find('img');
$img.one('load', function () {
// Make editor resize
$img.addClass('loaded');
});
// Uploading original image
that.$editImage.removeClass('hidden');
that.$copyrightButton.removeClass('hidden');
// Notify listeners that image was changed to params
that.trigger('changedImage', this.params);
return true;
};
/**
* Remove image
*/
ns.widgets.image.prototype.removeImage = function () {
// Notify listeners that we removed image with params
this.trigger('removedImage', this.params);
delete this.params;
this.setValue(this.field);
this.addFile();
for (var i = 0; i < this.changes.length; i++) {
this.changes[i]();
}
};
/**
* Validate this item
*/
ns.widgets.image.prototype.validate = function () {
return true;
};
/**
* Remove this item.
*/
ns.widgets.image.prototype.remove = function () {
// TODO: Check what happens when removed during upload.
this.$file.parent().remove();
};
/**
* Collect functions to execute once the tree is complete.
*
* @param {function} ready
*/
ns.widgets.image.prototype.ready = function (ready) {
if (this.passReadies) {
this.parent.ready(ready);
}
else {
ready();
}
};