88 lines
2.5 KiB
JavaScript
88 lines
2.5 KiB
JavaScript
// update the publish status
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function updatePublishStatus(msg){
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document.getElementById('publish-status').innerHTML = msg;
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}
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/* publish helper functions */
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// When a file is selected for publish, validate that file and
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// stage it so it will be ready when the publish button is clicked.
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function previewAndStageFile(selectedFile){
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var previewHolder = document.getElementById('asset-preview-holder');
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var dropzone = document.getElementById('drop-zone');
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var previewReader = new FileReader();
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var nameInput = document.getElementById('claim-name-input');
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// validate the file's name, type, and size
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try {
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validateFile(selectedFile);
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} catch (error) {
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showError('input-error-file-selection', error.message);
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return;
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}
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// set the image preview, if a preview was provided
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if (selectedFile.type !== 'video/mp4') {
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previewReader.readAsDataURL(selectedFile);
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previewReader.onloadend = function () {
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dropzone.style.display = 'none';
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previewHolder.style.display = 'block';
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previewHolder.innerHTML = '<img width="100%" src="' + previewReader.result + '" alt="image preview"/>';
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};
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}
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// set the name input value to the image name if none is set yet
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if (nameInput.value === "") {
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var filename = selectedFile.name.substring(0, selectedFile.name.indexOf('.'))
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nameInput.value = cleanseClaimName(filename);
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checkClaimName(nameInput.value);
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}
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// store the selected file for upload
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stagedFiles = [selectedFile];
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}
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// Validate the publish submission and then trigger publishing.
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function publishSelectedImage(event) {
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event.preventDefault();
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var name = document.getElementById('claim-name-input').value;
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validateSubmission(stagedFiles, name)
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.then(function() {
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uploader.submitFiles(stagedFiles);
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})
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.catch(function(error) {
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if (error.name === 'FileError'){
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showError('input-error-file-selection', error.message);
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} else if (error.name === 'NameError') {
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showError('input-error-claim-name', error.message);
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} else {
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showError('input-error-publish-submit', error.message);
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}
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return;
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})
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};
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/* drop zone functions */
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function drop_handler(ev) {
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ev.preventDefault();
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// if dropped items aren't files, reject them
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var dt = ev.dataTransfer;
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if (dt.items) {
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if (dt.items[0].kind == 'file') {
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var droppedFile = dt.items[0].getAsFile();
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previewAndStageFile(droppedFile);
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}
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}
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}
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function dragover_handler(ev) {
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ev.preventDefault();
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}
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function dragend_handler(ev) {
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var dt = ev.dataTransfer;
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if (dt.items) {
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for (var i = 0; i < dt.items.length; i++) {
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dt.items.remove(i);
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}
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} else {
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ev.dataTransfer.clearData();
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}
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} |