import { Html5QrcodeScannerStrings } from "../../strings";
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import { BaseUiElementFactory, PublicUiElementIdAndClasses } from "./base";
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export class FileSelectionUi {
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constructor(parentElement, showOnRender, onFileSelected) {
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this.fileBasedScanRegion = this.createFileBasedScanRegion();
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this.fileBasedScanRegion.style.display
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= showOnRender ? "block" : "none";
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parentElement.appendChild(this.fileBasedScanRegion);
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let fileScanLabel = document.createElement("label");
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fileScanLabel.setAttribute("for", this.getFileScanInputId());
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fileScanLabel.style.display = "inline-block";
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this.fileBasedScanRegion.appendChild(fileScanLabel);
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this.fileSelectionButton
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= BaseUiElementFactory.createElement("button", PublicUiElementIdAndClasses.FILE_SELECTION_BUTTON_ID);
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this.setInitialValueToButton();
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this.fileSelectionButton.addEventListener("click", (_) => {
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fileScanLabel.click();
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});
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fileScanLabel.append(this.fileSelectionButton);
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this.fileScanInput
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= BaseUiElementFactory.createElement("input", this.getFileScanInputId());
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this.fileScanInput.type = "file";
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this.fileScanInput.accept = "image/*";
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this.fileScanInput.style.display = "none";
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fileScanLabel.appendChild(this.fileScanInput);
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let $this = this;
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this.fileScanInput.addEventListener("change", (e) => {
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if (e == null || e.target == null) {
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return;
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}
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let target = e.target;
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if (target.files && target.files.length === 0) {
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return;
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}
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let fileList = target.files;
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const file = fileList[0];
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let fileName = file.name;
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$this.setImageNameToButton(fileName);
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onFileSelected(file);
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});
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let dragAndDropMessage = this.createDragAndDropMessage();
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this.fileBasedScanRegion.appendChild(dragAndDropMessage);
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this.fileBasedScanRegion.addEventListener("dragenter", function (event) {
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$this.fileBasedScanRegion.style.border
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= $this.fileBasedScanRegionActiveBorder();
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event.stopPropagation();
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event.preventDefault();
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});
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this.fileBasedScanRegion.addEventListener("dragleave", function (event) {
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$this.fileBasedScanRegion.style.border
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= $this.fileBasedScanRegionDefaultBorder();
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event.stopPropagation();
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event.preventDefault();
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});
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this.fileBasedScanRegion.addEventListener("dragover", function (event) {
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$this.fileBasedScanRegion.style.border
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= $this.fileBasedScanRegionActiveBorder();
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event.stopPropagation();
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event.preventDefault();
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});
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this.fileBasedScanRegion.addEventListener("drop", function (event) {
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event.stopPropagation();
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event.preventDefault();
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$this.fileBasedScanRegion.style.border
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= $this.fileBasedScanRegionDefaultBorder();
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var dataTransfer = event.dataTransfer;
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if (dataTransfer) {
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let files = dataTransfer.files;
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if (!files || files.length === 0) {
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return;
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}
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let isAnyFileImage = false;
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for (let i = 0; i < files.length; ++i) {
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let file = files.item(i);
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if (!file) {
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continue;
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}
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let imageType = /image.*/;
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if (!file.type.match(imageType)) {
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continue;
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}
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isAnyFileImage = true;
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let fileName = file.name;
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$this.setImageNameToButton(fileName);
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onFileSelected(file);
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dragAndDropMessage.innerText
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= Html5QrcodeScannerStrings.dragAndDropMessage();
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break;
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}
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if (!isAnyFileImage) {
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dragAndDropMessage.innerText
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= Html5QrcodeScannerStrings
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.dragAndDropMessageOnlyImages();
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}
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}
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});
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}
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hide() {
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this.fileBasedScanRegion.style.display = "none";
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this.fileScanInput.disabled = true;
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}
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show() {
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this.fileBasedScanRegion.style.display = "block";
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this.fileScanInput.disabled = false;
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}
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isShowing() {
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return this.fileBasedScanRegion.style.display === "block";
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}
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resetValue() {
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this.fileScanInput.value = "";
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this.setInitialValueToButton();
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}
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createFileBasedScanRegion() {
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let fileBasedScanRegion = document.createElement("div");
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fileBasedScanRegion.style.textAlign = "center";
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fileBasedScanRegion.style.margin = "auto";
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fileBasedScanRegion.style.width = "80%";
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fileBasedScanRegion.style.maxWidth = "600px";
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fileBasedScanRegion.style.border
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= this.fileBasedScanRegionDefaultBorder();
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fileBasedScanRegion.style.padding = "10px";
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fileBasedScanRegion.style.marginBottom = "10px";
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return fileBasedScanRegion;
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}
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fileBasedScanRegionDefaultBorder() {
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return "6px dashed #ebebeb";
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}
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fileBasedScanRegionActiveBorder() {
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return "6px dashed rgb(153 151 151)";
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}
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createDragAndDropMessage() {
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let dragAndDropMessage = document.createElement("div");
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dragAndDropMessage.innerText
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= Html5QrcodeScannerStrings.dragAndDropMessage();
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dragAndDropMessage.style.fontWeight = "400";
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return dragAndDropMessage;
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}
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setImageNameToButton(imageFileName) {
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const MAX_CHARS = 20;
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if (imageFileName.length > MAX_CHARS) {
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let start8Chars = imageFileName.substring(0, 8);
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let length = imageFileName.length;
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let last8Chars = imageFileName.substring(length - 8, length);
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imageFileName = `${start8Chars}....${last8Chars}`;
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}
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let newText = Html5QrcodeScannerStrings.fileSelectionChooseAnother()
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+ " - "
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+ imageFileName;
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this.fileSelectionButton.innerText = newText;
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}
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setInitialValueToButton() {
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let initialText = Html5QrcodeScannerStrings.fileSelectionChooseImage()
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+ " - "
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+ Html5QrcodeScannerStrings.fileSelectionNoImageSelected();
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this.fileSelectionButton.innerText = initialText;
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}
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getFileScanInputId() {
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return "html5-qrcode-private-filescan-input";
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}
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static create(parentElement, showOnRender, onFileSelected) {
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let button = new FileSelectionUi(parentElement, showOnRender, onFileSelected);
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return button;
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}
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}
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//# sourceMappingURL=file-selection-ui.js.map
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