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| var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
define(["require", "exports", "@syncfusion/ej2-base", "../../../models/enums", "../../../common/utils/index", "../../../common/constant"], function (require, exports, ej2_base_1, enums_1, index_1, constant_1) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var MIN_IMAGE_WIDTH = 40;
var MIN_IMAGE_HEIGHT = 40;
var RESIZE_HANDLE_SIZE = 8;
var ImageRenderer = (function () {
function ImageRenderer(manager) {
var _this = this;
this.isResizing = false;
this.handleImageResize = function (e) {
var allowedTarget = _this.parent.rootEditorElement;
if (!allowedTarget.contains(e.target) && (!_this.isResizing)) {
return;
}
var dx = e.clientX - _this.startPosition.x;
var dy = e.clientY - _this.startPosition.y;
var position = _this.currentResizeHandle.className.split('e-resize-')[1];
var _a = _this.calculateNewDimensions(dx, dy, position), newWidth = _a.newWidth, newHeight = _a.newHeight;
cancelAnimationFrame(_this.animationFrameId);
_this.animationFrameId = requestAnimationFrame(function () {
if (_this.currentImage && _this.currentImage.parentElement) {
ej2_base_1.updateCSSText(_this.currentImage, "width: " + ej2_base_1.formatUnit(newWidth) + "; height: " + ej2_base_1.formatUnit(newHeight) + ";");
ej2_base_1.updateCSSText(_this.currentImage.parentElement, "width: " + ej2_base_1.formatUnit(newWidth) + "; height: " + ej2_base_1.formatUnit(newHeight) + ";");
}
});
};
this.stopImageResize = function () {
if (!_this.isResizing) {
return;
}
document.removeEventListener('mousemove', _this.handleImageResize);
document.removeEventListener('mouseup', _this.stopImageResize);
if (_this.resizeOverlay && _this.resizeOverlay.parentNode) {
document.body.removeChild(_this.resizeOverlay);
}
_this.isResizing = false;
_this.currentResizeHandle = null;
_this.currentImage = null;
};
this.parent = manager;
this.addEventListeners();
}
ImageRenderer.prototype.addEventListeners = function () {
this.parent.observer.on(constant_1.events.documentClick, this.handleDocumentClick, this);
this.parent.observer.on(constant_1.events.destroy, this.destroy, this);
};
ImageRenderer.prototype.removeEventListeners = function () {
this.parent.observer.off(constant_1.events.documentClick, this.handleDocumentClick);
this.parent.observer.off(constant_1.events.destroy, this.destroy);
};
ImageRenderer.prototype.renderImage = function (block) {
var settings = block.properties;
var _a = this.createImageContainer(block), container = _a.container, img = _a.img;
this.configureImageElement(img, settings);
container.appendChild(img);
return container;
};
ImageRenderer.prototype.createImageContainer = function (block) {
var container = ej2_base_1.createElement('div', {
className: 'e-image-container',
attrs: { 'data-block-id': block.id, contenteditable: 'false' }
});
ej2_base_1.updateCSSText(container, 'position: relative;');
var img = ej2_base_1.createElement('img', {
className: 'e-image-block',
attrs: { 'alt': block.properties.altText || '', 'role': 'img', 'data-block-id': block.id }
});
return { container: container, img: img };
};
ImageRenderer.prototype.configureImageElement = function (img, settings) {
var _this = this;
var globalImgSettings = this.parent.imageBlockSettings;
ej2_base_1.updateCSSText(img, "width: " + ej2_base_1.formatUnit(settings.width ? settings.width : globalImgSettings.width) + ";");
ej2_base_1.updateCSSText(img, "height: " + ej2_base_1.formatUnit(settings.height ? settings.height : globalImgSettings.height) + ";");
if (settings.src) {
img.src = settings.src;
}
else {
this.handleImageUpload(img, settings);
}
if (settings.altText) {
img.setAttribute('aria-label', settings.altText);
}
img.addEventListener('load', function () {
ej2_base_1.updateCSSText(img, 'display: block;');
var minWidth = globalImgSettings.minWidth ? "min-width: " + ej2_base_1.formatUnit(globalImgSettings.minWidth) + ";" : '';
var minHeight = globalImgSettings.minHeight ? "min-height: " + ej2_base_1.formatUnit(globalImgSettings.minHeight) + ";" : '';
var maxWidth = globalImgSettings.maxWidth ? "max-width: " + ej2_base_1.formatUnit(globalImgSettings.maxWidth) + ";" : '';
var maxHeight = globalImgSettings.maxHeight ? "max-height: " + ej2_base_1.formatUnit(globalImgSettings.maxHeight) + ";" : '';
ej2_base_1.updateCSSText(img, minWidth + minHeight + maxWidth + maxHeight);
_this.aspectRatio = img.naturalWidth / img.naturalHeight;
if (_this.parent.imageBlockSettings.enableResize) {
_this.addResizeHandles(img.parentElement, img);
}
});
};
ImageRenderer.prototype.handleImageUpload = function (img, settings) {
var _this = this;
var fileInput = ej2_base_1.createElement('input', {
attrs: {
type: 'file',
accept: this.parent.imageBlockSettings.allowedTypes.join(',')
}
});
ej2_base_1.updateCSSText(fileInput, 'display: none;');
document.body.appendChild(fileInput);
var handleFileChange = function () { return __awaiter(_this, void 0, void 0, function () {
var file, fileExtension, src;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
file = fileInput.files[0];
if (!file) {
document.body.removeChild(fileInput);
return [2];
}
fileExtension = '.' + file.name.split('.').pop().toLowerCase();
if (this.parent.imageBlockSettings.allowedTypes.indexOf(fileExtension) === -1) {
document.body.removeChild(fileInput);
return [2];
}
return [4, this.getImageSrcFromFile(file, this.parent.imageBlockSettings.saveFormat)];
case 1:
src = _a.sent();
img.src = settings.src = src;
fileInput.removeEventListener('change', handleFileChange);
if (fileInput.parentNode) {
fileInput.parentNode.removeChild(fileInput);
}
return [2];
}
});
}); };
fileInput.addEventListener('change', handleFileChange);
fileInput.click();
};
ImageRenderer.prototype.handleDocumentClick = function (mouseEvent) {
var target = mouseEvent.target;
var isImageClick = target.matches('img') || target.getAttribute('data-block-type') === enums_1.BlockType.Image;
var images = this.parent.rootEditorElement.querySelectorAll('img');
for (var _i = 0, _a = Array.from(images); _i < _a.length; _i++) {
var image = _a[_i];
var isTargetImage = image === target || target.contains(image);
var resizeHandles = image.parentElement.querySelectorAll('.e-image-rsz-handle');
for (var _b = 0, _c = Array.from(resizeHandles); _b < _c.length; _b++) {
var handle = _c[_b];
ej2_base_1.updateCSSText(handle, "display: " + (isImageClick && isTargetImage ? 'block' : 'none') + ";");
}
image.classList.toggle('e-image-focus', isImageClick && isTargetImage);
}
};
ImageRenderer.prototype.handleFilePaste = function (file) {
return __awaiter(this, void 0, void 0, function () {
var blockElement, block, saveFormat, src, fileName, transformedParagraph, addedBlock;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
blockElement = this.parent.currentFocusedBlock;
block = index_1.getBlockModelById(blockElement.id, this.parent.getEditorBlocks());
saveFormat = this.parent.imageBlockSettings.saveFormat;
return [4, this.getImageSrcFromFile(file, (saveFormat || 'Base64'))];
case 1:
src = _a.sent();
fileName = (file instanceof File) ? file.name : "image-" + Date.now();
transformedParagraph = blockElement;
if (((blockElement.textContent.length > 0))) {
addedBlock = this.parent.blockCommand.addBlock({
targetBlock: blockElement,
blockType: enums_1.BlockType.Paragraph
});
transformedParagraph = this.parent.getBlockElementById(addedBlock.id);
}
this.parent.blockCommand.transformBlock({
block: index_1.getBlockModelById(transformedParagraph.id, this.parent.getEditorBlocks()),
blockElement: transformedParagraph,
newBlockType: enums_1.BlockType.Image,
props: { src: src, altText: fileName }
});
return [2];
}
});
});
};
ImageRenderer.prototype.getImageSrcFromFile = function (file, saveFormat) {
return __awaiter(this, void 0, void 0, function () {
var format;
return __generator(this, function (_a) {
format = saveFormat.toLowerCase();
if (format === 'base64') {
return [2, new Promise(function (resolve, reject) {
var reader = new FileReader();
reader.onload = function (event) { resolve(event.target.result); };
reader.onerror = function () { reject(new Error('Failed to read image as base64.')); };
reader.readAsDataURL(file);
})];
}
else {
return [2, URL.createObjectURL(file)];
}
return [2];
});
});
};
ImageRenderer.prototype.createResizeHandle = function (pos, img) {
var _this = this;
var handle = ej2_base_1.createElement('div', {
className: "e-image-rsz-handle e-resize-" + pos
});
Object.assign(handle.style, {
position: 'absolute',
width: RESIZE_HANDLE_SIZE + "px",
height: RESIZE_HANDLE_SIZE + "px",
backgroundColor: '#0078d4',
borderRadius: '50%',
zIndex: '100',
cursor: ['nw', 'se'].indexOf(pos) !== -1 ? 'nwse-resize' : 'nesw-resize',
display: 'none'
});
handle.addEventListener('mousedown', function (e) {
e.preventDefault();
e.stopPropagation();
_this.startImageResize(e, img, handle);
});
return handle;
};
ImageRenderer.prototype.addResizeHandles = function (container, img) {
var existingHandles = container.querySelectorAll('.e-image-rsz-handle');
existingHandles.forEach(function (handle) { return container.removeChild(handle); });
var positions = ['nw', 'ne', 'se', 'sw'];
for (var _i = 0, positions_1 = positions; _i < positions_1.length; _i++) {
var pos = positions_1[_i];
var handle = this.createResizeHandle(pos, img);
container.appendChild(handle);
}
if (img.clientWidth > 0 || img.clientHeight > 0) {
ej2_base_1.updateCSSText(container, "width: " + ej2_base_1.formatUnit(img.clientWidth) + "; height: " + ej2_base_1.formatUnit(img.clientHeight) + ";");
}
};
ImageRenderer.prototype.startImageResize = function (e, img, handle) {
this.isResizing = true;
this.currentResizeHandle = handle;
this.currentImage = img;
this.startDimensions = { width: img.offsetWidth, height: img.offsetHeight };
this.startPosition = { x: e.clientX, y: e.clientY };
this.resizeOverlay = ej2_base_1.createElement('div', { id: this.parent.rootEditorElement.id + 'resize_overlay' });
Object.assign(this.resizeOverlay.style, {
position: 'fixed',
top: '0',
left: '0',
right: '0',
bottom: '0',
zIndex: '9999',
cursor: handle.style.cursor
});
document.body.appendChild(this.resizeOverlay);
document.addEventListener('mousemove', this.handleImageResize);
document.addEventListener('mouseup', this.stopImageResize);
};
ImageRenderer.prototype.calculateNewDimensions = function (dx, dy, position) {
var newWidth = this.startDimensions.width;
var newHeight = this.startDimensions.height;
switch (position) {
case 'se':
newWidth += dx;
newHeight += dy;
break;
case 'sw':
newWidth -= dx;
newHeight += dy;
break;
case 'ne':
newWidth += dx;
newHeight -= dy;
break;
case 'nw':
newWidth -= dx;
newHeight -= dy;
break;
}
newWidth = Math.max(newWidth, MIN_IMAGE_WIDTH);
newHeight = Math.max(newHeight, MIN_IMAGE_HEIGHT);
if (this.aspectRatio) {
var widthChange = Math.abs(newWidth - this.startDimensions.width);
var heightChange = Math.abs(newHeight - this.startDimensions.height);
Eif (widthChange >= heightChange) {
newHeight = newWidth / this.aspectRatio;
}
else {
newWidth = newHeight * this.aspectRatio;
}
}
return { newWidth: newWidth, newHeight: newHeight };
};
ImageRenderer.prototype.destroy = function () {
this.removeEventListeners();
if (this.resizeOverlay && this.resizeOverlay.parentNode) {
document.body.removeChild(this.resizeOverlay);
}
};
return ImageRenderer;
}());
exports.ImageRenderer = ImageRenderer;
});
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