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Implement upload throttling: one file at a time.

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This commit is contained in:
Aaron van Geffen
2016-09-04 14:39:21 +02:00
parent 790d5fc5d0
commit ddcc28aff6
3 changed files with 28 additions and 11 deletions
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5
public/css/default.css
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@@ -697,6 +697,11 @@ a#previous_photo:hover, a#next_photo:hover {
#upload_preview_area .progress .error {
background: #b22;
}
#photo_submit:disabled {
background: #ccc;
color: #777;
border-color: #aaa;
}
/* Spinner animation
----------------------*/

28
public/js/upload_queue.js
View File

@@ -15,6 +15,7 @@ UploadQueue.prototype.addEvents = function() {
for (var i = 0; i < that.queue.files.length; i++) {
var callback = (i !== that.queue.files.length - 1) ? null : function() {
that.hideSpinner();
that.submit.disabled = false;
};
that.addPreviewForFile(that.queue.files[i], i, callback);
};
@@ -23,10 +24,13 @@ UploadQueue.prototype.addEvents = function() {
e.preventDefault();
that.process();
});
this.submit.disabled = true;
};
UploadQueue.prototype.clearPreviews = function() {
this.preview_area.innerHTML = '';
this.submit.disabled = true;
this.current_upload_index = -1;
}
UploadQueue.prototype.addPreviewForFile = function(file, index, callback) {
@@ -67,16 +71,24 @@ UploadQueue.prototype.addPreviewForFile = function(file, index, callback) {
UploadQueue.prototype.process = function() {
this.showSpinner(this.submit, "Preparing to upload files...");
var files = this.queue.files;
for (var i = 0; i < files.length; i++) {
this.setSpinnerLabel("Uploading file " + (i + 1) + " out of " + files.length);
var callback = (i !== files.length - 1) ? null : function() {
this.hideSpinner();
};
this.sendFile(files[i], i, callback);
};
if (this.queue.files.length > 0) {
this.submit.disabled = true;
this.nextFile();
}
};
UploadQueue.prototype.nextFile = function() {
var files = this.queue.files;
var i = ++this.current_upload_index;
if (i === files.length) {
this.hideSpinner();
} else {
this.setSpinnerLabel("Uploading file " + (i + 1) + " out of " + files.length);
this.sendFile(files[i], i, function() {
this.nextFile();
});
}
};
UploadQueue.prototype.sendFile = function(file, index, callback) {
// Prepare the request.