scinote-web/app/assets/javascripts/sitewide/file_preview.js

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/* eslint no-underscore-dangle: ["error", { "allowAfterThis": true }]*/
/* eslint no-use-before-define: ["error", { "functions": false }]*/
/* eslint-disable no-underscore-dangle */
/* global Uint8Array fabric tui animateSpinner */
/* global Assets I18n PerfectScrollbar refreshProtocolStatusBar */
//= require assets
var FilePreviewModal = (function() {
'use strict';
var readOnly = false;
var CHECK_READY_DELAY = 5000;
var CHECK_READY_TRIES_LIMIT = 60;
var checkReadyCntr;
function initPreviewModal(options = {}) {
var name;
var url;
var downloadUrl;
readOnly = options.readOnly;
$('.file-preview-link').off('click');
$('.file-preview-link').click(function(e) {
e.preventDefault();
name = $(this).find('p').text();
url = $(this).data('preview-url');
downloadUrl = $(this).attr('href');
openPreviewModal(name, url, downloadUrl);
});
}
// Adding rotation icon
function updateFabricControls() {
fabric.Object.prototype.drawBorders = function(ctx, styleOverride = {}) {
var wh = this._calculateCurrentDimensions();
var strokeWidth = 1 / this.borderScaleFactor;
var width = wh.x + strokeWidth;
var height = wh.y + strokeWidth;
var drawRotatingPoint = typeof styleOverride.hasRotatingPoint !== 'undefined'
? styleOverride.hasRotatingPoint : this.hasRotatingPoint;
var hasControls = typeof styleOverride.hasControls !== 'undefined'
? styleOverride.hasControls : this.hasControls;
var rotatingPointOffset = typeof styleOverride.rotatingPointOffset !== 'undefined'
? styleOverride.rotatingPointOffset : this.rotatingPointOffset;
var rotateHeight = -height / 2;
ctx.save();
ctx.strokeStyle = styleOverride.borderColor || this.borderColor;
this._setLineDash(ctx, styleOverride.borderDashArray || this.borderDashArray, null);
ctx.strokeRect(
-width / 2,
-height / 2,
width,
height
);
if (drawRotatingPoint && this.isControlVisible('mtr') && hasControls) {
ctx.beginPath();
ctx.moveTo(0, rotateHeight);
ctx.lineTo(0, rotateHeight - rotatingPointOffset + 10);
ctx.stroke();
}
ctx.restore();
return this;
};
fabric.Object.prototype.drawControls = function(ctx) {
var rotationImage = 'data:image/png;base64,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';
var rotate = new Image();
var rotateLeft;
var rotateTop;
var wh = this._calculateCurrentDimensions();
var width = wh.x;
var height = wh.y;
var scaleOffset = this.cornerSize;
var left = -(width + scaleOffset) / 2;
var top = -(height + scaleOffset) / 2;
var methodName = this.transparentCorners ? 'stroke' : 'fill';
if (!this.hasControls) {
return this;
}
ctx.save();
ctx.strokeStyle = this.cornerColor;
ctx.fillStyle = this.cornerColor;
if (!this.transparentCorners) {
ctx.strokeStyle = this.cornerStrokeColor;
}
this._setLineDash(ctx, this.cornerDashArray, null);
// top-left
this._drawControl(
'tl',
ctx,
methodName,
left,
top
);
// top-right
this._drawControl(
'tr',
ctx,
methodName,
left + width,
top
);
// bottom-left
this._drawControl(
'bl',
ctx,
methodName,
left,
top + height
);
// bottom-right
this._drawControl(
'br',
ctx,
methodName,
left + width,
top + height
);
if (!this.get('lockUniScaling')) {
// middle-top
this._drawControl(
'mt',
ctx,
methodName,
left + width / 2,
top
);
// middle-bottom
this._drawControl(
'mb',
ctx,
methodName,
left + width / 2,
top + height
);
// middle-right
this._drawControl(
'mr',
ctx,
methodName,
left + width,
top + height / 2
);
// middle-left
this._drawControl(
'ml',
ctx,
methodName,
left,
top + height / 2
);
}
// middle-top-rotate
if (this.hasRotatingPoint) {
rotate.src = rotationImage;
rotateLeft = left + width / 2 - 6;
rotateTop = top - this.rotatingPointOffset - 6;
ctx.drawImage(rotate, rotateLeft, rotateTop, 32, 32);
}
ctx.restore();
return this;
};
}
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function preInitImageEditor(data) {
$.ajax({
url: data['download-url'],
type: 'get',
success: function(responseData) {
var fileUrl = responseData;
initImageEditor(data, fileUrl);
}
});
}
function initImageEditor(data, fileUrl) {
var imageEditor;
var ps;
var blackTheme = {
'common.bi.image': '',
'common.bisize.width': '0',
'common.bisize.height': '0',
'common.backgroundImage': 'none',
'common.backgroundColor': '#1e1e1e',
'common.border': '0px',
// header
'header.backgroundImage': 'none',
'header.backgroundColor': 'transparent',
'header.border': '0px',
// load button
'loadButton.backgroundColor': '#fff',
'loadButton.border': '1px solid #ddd',
'loadButton.color': '#222',
'loadButton.fontFamily': '\'Noto Sans\', sans-serif',
'loadButton.fontSize': '12px',
// download button
'downloadButton.backgroundColor': '#fdba3b',
'downloadButton.border': '1px solid #fdba3b',
'downloadButton.color': '#fff',
'downloadButton.fontFamily': '\'Noto Sans\', sans-serif',
'downloadButton.fontSize': '12px',
// main icons
'menu.normalIcon.path': '/images/icon-d.svg',
'menu.normalIcon.name': 'icon-d',
'menu.activeIcon.path': '/images/icon-b.svg',
'menu.activeIcon.name': 'icon-b',
'menu.disabledIcon.path': '/images/icon-a.svg',
'menu.disabledIcon.name': 'icon-a',
'menu.hoverIcon.path': '/images/icon-c.svg',
'menu.hoverIcon.name': 'icon-c',
'menu.iconSize.width': '24px',
'menu.iconSize.height': '24px',
// submenu primary color
'submenu.backgroundColor': '#1e1e1e',
'submenu.partition.color': '#3c3c3c',
// submenu icons
'submenu.normalIcon.path': '/images/icon-d.svg',
'submenu.normalIcon.name': 'icon-d',
'submenu.activeIcon.path': '/images/icon-c.svg',
'submenu.activeIcon.name': 'icon-c',
'submenu.iconSize.width': '32px',
'submenu.iconSize.height': '32px',
// submenu labels
'submenu.normalLabel.color': '#8a8a8a',
'submenu.normalLabel.fontWeight': 'lighter',
'submenu.activeLabel.color': '#fff',
'submenu.activeLabel.fontWeight': 'lighter',
// checkbox style
'checkbox.border': '0px',
'checkbox.backgroundColor': '#fff',
// range style
'range.pointer.color': '#fff',
'range.bar.color': '#666',
'range.subbar.color': '#d1d1d1',
'range.disabledPointer.color': '#414141',
'range.disabledBar.color': '#282828',
'range.disabledSubbar.color': '#414141',
'range.value.color': '#fff',
'range.value.fontWeight': 'lighter',
'range.value.fontSize': '11px',
'range.value.border': '1px solid #353535',
'range.value.backgroundColor': '#151515',
'range.title.color': '#fff',
'range.title.fontWeight': 'lighter',
// colorpicker style
'colorpicker.button.border': '1px solid #1e1e1e',
'colorpicker.title.color': '#fff'
};
animateSpinner(null, true);
imageEditor = new tui.ImageEditor('#tui-image-editor', {
includeUI: {
loadImage: {
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path: fileUrl,
name: data.filename
},
theme: blackTheme,
initMenu: 'draw',
menuBarPosition: 'bottom'
},
cssMaxWidth: 700,
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cssMaxHeight: 500,
selectionStyle: {
cornerSize: 20,
rotatingPointOffset: 70,
borderColor: '#333',
cornerColor: '#333',
cornerStyle: 'circle',
borderScaleFactor: 3
},
usageStatistics: false
});
imageEditor.on('image_loaded', () => {
$('.file-save-link').css('display', '');
animateSpinner(null, false);
});
ps = new PerfectScrollbar($('.tui-image-editor-wrap')[0], { wheelSpeed: 0.5 });
$('#tui-image-editor .tui-image-editor').on('mousewheel', (e) => {
var imageOriginalSize = {
width: imageEditor._graphics.canvasImage.width,
height: imageEditor._graphics.canvasImage.height
};
var wDelta = e.originalEvent.wheelDelta || e.originalEvent.deltaY;
var imageEditorWindow = e.currentTarget;
var scrollContainer = $('.tui-image-editor-wrap');
var initWidth = imageEditorWindow.style.width;
var initHeight = imageEditorWindow.style.height;
var scrollContainerInitial = {
top: scrollContainer.scrollTop(),
left: scrollContainer.scrollLeft(),
height: scrollContainer[0].scrollHeight,
width: scrollContainer[0].scrollWidth
};
var mousePosition = {
top: e.clientY - (imageEditorWindow.offsetTop - scrollContainerInitial.top),
left: e.clientX - $(imageEditorWindow).offset().left
};
var newWidth;
var newHeight;
var offsetY;
var offsetX;
if (wDelta > 0) {
newWidth = parseInt(initWidth, 10) * 1.1;
newHeight = parseInt(initHeight, 10) * 1.1;
if (newWidth > imageOriginalSize.width || newHeight > imageOriginalSize.height) {
newWidth = imageOriginalSize.width;
newHeight = imageOriginalSize.height;
}
} else {
newWidth = parseInt(initWidth, 10) * 0.9;
newHeight = parseInt(initHeight, 10) * 0.9;
if (parseInt(imageEditorWindow.dataset.minWidth, 10) * 0.5 > parseInt(newWidth, 10)) {
newWidth = parseInt(imageEditorWindow.dataset.minWidth, 10) * 0.5;
newHeight = parseInt(imageEditorWindow.dataset.minHeight, 10) * 0.5;
}
}
imageEditorWindow.style.width = newWidth + 'px';
imageEditorWindow.style.height = newHeight + 'px';
$(imageEditorWindow).find('canvas, .tui-image-editor-canvas-container')
.css('max-width', imageEditorWindow.style.width)
.css('max-height', imageEditorWindow.style.height);
if (imageEditorWindow.dataset.minHeight === undefined) {
imageEditorWindow.dataset.minHeight = initHeight;
imageEditorWindow.dataset.minWidth = initWidth;
}
offsetY = (scrollContainer[0].scrollHeight - scrollContainerInitial.height)
* (mousePosition.top / scrollContainerInitial.height);
offsetX = (scrollContainer[0].scrollWidth - scrollContainerInitial.width)
* (mousePosition.left / scrollContainerInitial.width);
scrollContainer.scrollTop(scrollContainerInitial.top + offsetY);
scrollContainer.scrollLeft(scrollContainerInitial.left + offsetX);
ps.update();
e.preventDefault();
e.stopPropagation();
});
$('.tui-image-editor-wrap')[0].onwheel = function() { return false; };
$('.tui-image-editor-wrap').css('height', 'calc(100% - 150px)');
$('#fileEditModal').find('.file-name').text('Editing: ' + data.filename);
$('#fileEditModal').modal('show');
$('.tui-image-editor-header').hide();
$('.file-save-link').css('display', 'none');
$('.file-save-link').off().click(function(ev) {
var imageBlob;
var imageDataURL;
var imageParams;
var dataUpload = new FormData();
var blobArray;
var bytePosition;
ev.preventDefault();
ev.stopPropagation();
if (data['mime-type'] === 'image/png') {
imageParams = { format: 'png' };
} else {
imageParams = { format: 'jpeg', quality: (data.quality / 100) };
}
imageDataURL = imageEditor.toDataURL(imageParams);
imageDataURL = atob(imageDataURL.split(',')[1]);
blobArray = new Uint8Array(imageDataURL.length);
for (bytePosition = 0; bytePosition < imageDataURL.length; bytePosition += 1) {
blobArray[bytePosition] = imageDataURL.charCodeAt(bytePosition);
}
imageBlob = new Blob([blobArray]);
dataUpload.append('image', imageBlob);
animateSpinner(null, true);
$.ajax({
type: 'POST',
url: '/files/' + data.id + '/update_image',
data: dataUpload,
contentType: false,
processData: false,
success: function(res) {
$('#modal_link' + data.id).parent().html(res.html);
Assets.setupAssetsLoading();
}
}).done(function() {
animateSpinner(null, false);
imageEditor.destroy();
imageEditor = {};
$('#tui-image-editor').html('');
$('#fileEditModal').modal('hide');
if (typeof refreshProtocolStatusBar === 'function') refreshProtocolStatusBar();
});
});
window.onresize = function() {
imageEditor.ui.resizeEditor();
};
}
function openPreviewModal(name, url, downloadUrl) {
var modal = $('#filePreviewModal');
updateFabricControls();
$.ajax({
url: url,
type: 'GET',
dataType: 'json',
success: function(data) {
var link = modal.find('.file-download-link');
modal.find('.file-preview-container').empty();
modal.find('.file-wopi-controls').empty();
if (Object.prototype.hasOwnProperty.call(data, 'wopi-controls')) {
modal.find('.file-wopi-controls').html(data['wopi-controls']);
}
link.attr('href', downloadUrl);
link.attr('data-no-turbolink', true);
link.attr('data-status', 'asset-present');
if (data.type === 'image') {
if (data.processing) {
modal.find('.file-preview-container').append(data['processing-img']);
} else {
animateSpinner('.file-preview-container', false);
modal.find('.file-preview-container')
.append($('<img>')
.attr('src', data['large-preview-url'])
.attr('alt', name)
.click(function(ev) {
ev.stopPropagation();
}));
if (!readOnly && data.editable) {
modal.find('.file-edit-link').css('display', '');
modal.find('.file-edit-link').off().click(function(ev) {
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$.post('/files/' + data.id + '/start_edit_image');
ev.preventDefault();
ev.stopPropagation();
modal.modal('hide');
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preInitImageEditor(data);
});
} else {
modal.find('.file-edit-link').css('display', 'none');
}
}
} else {
modal.find('.file-edit-link').css('display', 'none');
modal.find('.file-preview-container').html(data['preview-icon']);
}
if (readOnly) {
modal.find('#wopi_file_edit_button').remove();
}
if (data.processing) {
setTimeout(function() {
checkFileReady(url, modal);
}, CHECK_READY_DELAY);
}
modal.find('.file-name').text(name);
modal.find('.preview-close').click(function() {
checkReadyCntr = CHECK_READY_TRIES_LIMIT;
modal.modal('hide');
if (typeof refreshProtocolStatusBar === 'function') refreshProtocolStatusBar();
});
modal.modal();
modal.find('a[disabled=disabled]').click(function(ev) {
ev.preventDefault();
});
$('.modal-backdrop').last().css('z-index', modal.css('z-index') - 1);
checkReadyCntr = 0;
},
error: function() {
// TODO
}
});
}
function checkFileReady(url, modal) {
$.get(url, function(data) {
if (data.processing) {
$('.file-download-link')
.addClass('disabled-with-click-events')
.attr(
'title',
I18n.t('general.file.processing')
)
.click(function(ev) {
ev.preventDefault();
ev.stopPropagation();
});
if (checkReadyCntr < CHECK_READY_TRIES_LIMIT) {
setTimeout(function() {
checkFileReady(url, modal);
}, CHECK_READY_DELAY);
}
} else {
if (data.type === 'image' || (data.type === 'file' && data['preview-icon'])) {
modal.find('.file-preview-container').empty();
modal.find('.file-preview-container')
.append($('<img>')
.attr('src', data['large-preview-url'])
.attr('alt', data.filename)
.click(function(ev) {
ev.stopPropagation();
}));
modal.find('.file-name').text(data.filename);
modal.find('.modal-body').click(function() {
modal.modal('hide');
});
modal.modal();
$('.modal-backdrop').last().css('z-index', modal.css('z-index') - 1);
}
$('.file-download-link')
.removeClass('disabled-with-click-events')
.removeAttr('title')
.off();
}
});
checkReadyCntr += 1;
}
return Object.freeze({
init: initPreviewModal
});
}(window));