Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'blueimp-load-image' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.
dropzone.on('addedfile', function(file) {
var self = this;
//in bulletins this container is hidden so you can see error message
if (self.previewsContainer.classList.contains('hidden')) {
self.previewsContainer.classList.remove('hidden');
}
loadImage.parseMetaData(file, function (data) {
// use embedded thumbnail if exists.
if (data.exif) {
var thumbnail = data.exif.get('Thumbnail');
var orientation = data.exif.get('Orientation');
if (thumbnail && orientation) {
loadImage(thumbnail, function (img) {
self.emit('thumbnail', file, img.toDataURL());
}, { orientation: orientation });
return;
}
}
// use default implementation for PNG, etc.
self.createThumbnail(file);
});
});
const file = fileInput.files[0];
if (file === undefined) {
return;
}
if (file.size > 2 * 1024 * 1024) {
// If file size is greater than 2 MB, show error message
this.setState({
isImageOversize: true,
});
return;
}
this.setState({
isImageOversize: false,
});
uploadPhotoInit();
loadImage.parseMetaData(file, (data) => {
let orientation = 0;
if (data.exif) {
orientation = data.exif.get('Orientation');
}
loadImage(
file,
(img) => {
img.toBlob(
(blobResult) => {
uploadPhoto(handle, tokenV3, blobResult);
},
);
}, {
canvas: true,
orientation,
},
loadImageToCanvas(url) {
if (!url) {
this.clearAll()
return
}
this.imageLoading = true
loadImage(
url,
img => {
if (img.type === 'error') {
this.imageLoadingError = true
this.imageLoading = false
} else {
// load image data onto input canvas
const ctx = document.getElementById('input-canvas').getContext('2d')
ctx.drawImage(img, 0, 0)
this.imageLoadingError = false
this.imageLoading = false
this.modelRunning = true
// model predict
this.$nextTick(function() {
setTimeout(() => {
this.runModel()
loadImageToCanvas(url) {
if (!url) {
this.clearAll()
return
}
this.imageLoading = true
loadImage(
url,
img => {
if (img.type === 'error') {
this.imageLoadingError = true
this.imageLoading = false
} else {
// adjust canvas dimensions
const inputCanvas = document.getElementById('input-canvas')
inputCanvas.width = img.width
inputCanvas.height = img.height
this.inputImageShape = [img.height, img.width]
const outputCanvas = document.getElementById('output-canvas')
outputCanvas.width = img.width * 2
outputCanvas.height = img.height * 2
this.outputImageShape = [img.height * 2, img.width * 2]
const scaledInputCanvas = document.getElementById('scaled-input-canvas')
loadImageToCanvas(file) {
this.imageLoading = true
loadImage(
file,
img => {
if (img.type === 'error') {
this.imageLoadingError = true
this.imageLoading = false
} else {
// adjust canvas dimensions
const inputCanvas = document.getElementById('input-canvas')
inputCanvas.width = img.width
inputCanvas.height = img.width
this.inputImageShape = [img.width, img.width]
const outputCanvas = document.getElementById('output-canvas')
outputCanvas.width = img.width
outputCanvas.height = img.width
this.outputImageShape = [img.width, img.width]
const scaledInputCanvas = document.getElementById('scaled-input-canvas')
} else if (rotation === 6 && originalOrientation === 8) {
rotation = 3;
} else if (rotation === 8 && originalOrientation === 3) {
rotation = 6;
} else if (rotation === 6 && originalOrientation === 3) {
rotation = 8;
}
}
}
// Set photo orientation from exif
if (rotate) {
const imageOptions = {
orientation: rotation
};
loadImage(
base64,
processedPhoto => {
this.handleProcessedPhoto(processedPhoto);
},
imageOptions
);
} else {
this.rotation = rotation;
this.source = base64;
}
}
loadImageToCanvas(url: string) {
if (!url) {
const element = document.getElementById('input-canvas') as HTMLCanvasElement;
const ctx = element.getContext('2d')as CanvasRenderingContext2D;
ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
return;
}
loadImage(
url,
img => {
if ((img as Event).type === 'error') {
this.imageLoadingError = true;
this.imageLoading = false;
} else {
// load image data onto input canvas
const element = document.getElementById('input-canvas') as HTMLCanvasElement;
const ctx = element.getContext('2d') as CanvasRenderingContext2D;
const imageWidth = (img as HTMLImageElement).width;
const imageHeight = (img as HTMLImageElement).height;
ctx.drawImage(img as HTMLImageElement, 0, 0, imageWidth,
imageHeight, 0, 0, element.width, element.height);
this.imageLoadingError = false;
this.imageLoading = false;
this.sessionRunning = true;
add(e, data) { // Upload begins
// Disable form submit
$(this).closest('form').find('input[type=submit]').attr('disabled', true)
// Display image while uploading
const file = data.files[0]
data.context = $(tmpl('template-upload', file))
$('#js-images').append(data.context)
loadImage(file, ((img) => {
data.context.find('img').replaceWith($(img).addClass('img-thumbnail square muted'))
}), {
maxWidth: 172,
maxHeight: 172
})
// Show progressbar
data.progressBar = data.context.find('.progress')
// Presign file
const options = {
extension: file.name.match(/(\.\w+)?$/)[0],
_: Date.now()
}
$.getJSON('/api/v1/presign', options, (result) => {
data.formData = result.fields
const info = await Device.getInfo();
let thumbnailData = null;
let viewerData = null;
thumbnailData = await PhotosService.compressPhoto(
tempFile,
PhotoType.Thumbnail,
tempFile.type
);
if (info.model !== 'iPhone' && info.model !== 'iPad') {
viewerData = await PhotosService.compressPhoto(
tempFile,
PhotoType.Viewer,
tempFile.type
);
}
loadImage.parseMetaData(
tempFile,
data => {
const reader = new FileReader();
let orientation = 1;
if (data && data.exif) {
orientation = data.exif.get('Orientation');
}
// Closure to capture the file information.
reader.onload = ((loadedFile, loadedList, loadedOrientation) => {
return async event => {
const originalData = event.target.result;
if (loadedOrientation) {
loadedFile.exifdata = {
tags: {
loadImage(file, canvas => {
if (canvas.type === 'error') {
return alert('The image could not be loaded.')
}
const scaled = loadImage.scale(canvas, {
maxWidth: 400,
maxHeight: 300,
crop: true,
downsamplingRatio: 0.5,
})
scaled.toBlob(blob => {
this.setState({
imageURL: URL.createObjectURL(blob)
})
this.props.onSelect(blob)
}, 'image/jpeg')
}, {
// loadImage options