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authorAndrew Manning <tamanning@zoho.com>2016-07-24 07:41:53 -0400
committerAndrew Manning <tamanning@zoho.com>2016-07-24 07:41:53 -0400
commit6998bb1f23b63c3439f34d9b3f53c42a6922a58e (patch)
tree33b706f658837ef080d6ec5b94accc451d262b5f /view/js
parent3a60bef2b6cd8288c6be50915687ef7c0df89878 (diff)
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Multiple file upload by drag and drop with progress indicators and auto page reload
Diffstat (limited to 'view/js')
-rw-r--r--view/js/mod_cloud.js98
1 files changed, 98 insertions, 0 deletions
diff --git a/view/js/mod_cloud.js b/view/js/mod_cloud.js
new file mode 100644
index 000000000..71e916446
--- /dev/null
+++ b/view/js/mod_cloud.js
@@ -0,0 +1,98 @@
+/**
+ * JavaScript for mod/cloud
+ */
+
+$(document).ready(function () {
+ // call initialization file
+ if (window.File && window.FileList && window.FileReader) {
+ DragDropUploadInit();
+ }
+});
+
+//
+// initialize
+function DragDropUploadInit() {
+
+ var fileselect = $("#fileselect"),
+ filedrag = $("#filedrag");
+
+ // file select
+ fileselect.on("change", DragDropUploadFileSelectHandler);
+
+ // is XHR2 available?
+ var xhr = new XMLHttpRequest();
+ if (xhr.upload) {
+
+ // file drop
+ filedrag.on("dragover", DragDropUploadFileHover);
+ filedrag.on("dragleave", DragDropUploadFileHover);
+ filedrag.on("drop", DragDropUploadFileSelectHandler);
+ filedrag.show();
+
+ }
+
+ window.filesToUpload = 0;
+ window.fileUploadsCompleted = 0;
+
+
+}
+
+// file drag hover
+function DragDropUploadFileHover(e) {
+ e.stopPropagation();
+ e.preventDefault();
+ e.target.className = (e.type == "dragover" ? "hover" : "");
+}
+
+// file selection
+function DragDropUploadFileSelectHandler(e) {
+
+ // cancel event and hover styling
+ DragDropUploadFileHover(e);
+
+ // fetch FileList object
+ var files = e.target.files || e.originalEvent.dataTransfer.files;
+ $("#file-upload-list").empty();
+ // process all File objects
+ for (var i = 0, f; f = files[i]; i++) {
+ $("#file-upload-list").append(
+ "<p>" + "<span id='upload-progress-" + i + "'></span> -> File: <strong>" + f.name +
+ "</strong> type: <strong>" + f.type +
+ "</strong> size: <strong>" + f.size +
+ "</strong> bytes</p>"
+ );
+ DragDropUploadFile(f, i);
+ }
+
+}
+
+// upload files
+function DragDropUploadFile(file, idx) {
+
+ window.filesToUpload = window.filesToUpload + 1;
+
+ var xhr = new XMLHttpRequest();
+ xhr.withCredentials = true; // Include the SESSION cookie info for authentication
+ (xhr.upload || xhr).addEventListener('progress', function (e) {
+ var done = e.position || e.loaded;
+ var total = e.totalSize || e.total;
+ // Dynamically update the percentage complete displayed in the file upload list
+ $('#upload-progress-' + idx).html(Math.round(done / total * 100) + '%');
+ });
+ xhr.addEventListener('load', function (e) {
+ //console.log('xhr upload complete', e);
+ window.fileUploadsCompleted = window.fileUploadsCompleted + 1;
+ // When all the uploads have completed, refresh the page
+ if (window.filesToUpload > 0 && window.fileUploadsCompleted === window.filesToUpload) {
+ window.fileUploadsCompleted = window.filesToUpload = 0;
+ // After uploads complete, refresh browser window to display new files
+ window.location.href = window.location.href;
+ }
+ });
+ // POST to the entire cloud path
+ xhr.open('post', window.location.pathname, true);
+
+ var data = new FormData(document.getElementById("ajax-upload-files"));
+ data.append('file', file);
+ xhr.send(data);
+}