[js_upload] Rewrite addon after ACl changes

- Move HTML to template
- Remove redundant uninstall method
- Enforce coding standards
- Add type-hinting

js_upload/templates/js_upload.tpl

@@ -0,0 +1,51 @@
+
+<div id="js_upload">
+	<noscript>
+		<p>Please enable JavaScript to use file uploader.</p>
+		<!-- or put a simple form for upload here -->
+	</noscript>
+</div>
+
+<script type="text/javascript">
+	var uploader = null;
+	function createUploader() {
+		uploader = new qq.FileUploader({
+			element: document.getElementById('js_upload'),
+			action: '{{$post_url}}',
+
+			template: '<div class="qq-uploader">' +
+				'<div class="qq-upload-drop-area"><span>{{$drop_msg}}</span></div>' +
+				'<div class="qq-upload-button">{{$upload_msg}}</div>' +
+				'<ul class="qq-upload-list"></ul>' +
+				'</div>',
+
+			// template for one item in file list
+			fileTemplate: '<li>' +
+				'<span class="qq-upload-file"></span>' +
+				'<span class="qq-upload-spinner"></span>' +
+				'<span class="qq-upload-size"></span>' +
+				'<a class="qq-upload-cancel" href="#">{{$cancel}}</a>' +
+				'<span class="qq-upload-failed-text">{{$failed}}</span>' +
+				'</li>',
+
+			debug: true,
+			sizeLimit: {{$maximagesize}},
+			onSubmit: function(id, filename) {
+				let newalbumElm = document.getElementById('photos-upload-newalbum');
+				let albumElm = document.getElementById('photos-upload-album-select');
+
+				uploader.setParams({
+					newalbum      : newalbumElm ? newalbumElm.value : '',
+					album         : albumElm ? albumElm.value : '',
+					not_visible   : document.getElementById('photos-upload-noshare').checked,
+					contact_allow : document.querySelector('[name="contact_allow"]').value,
+					group_allow   : document.querySelector('[name="group_allow"]').value,
+					contact_deny  : document.querySelector('[name="contact_deny"]').value,
+					group_deny    : document.querySelector('[name="group_deny"]').value,
+				});
+			}
+		});
+	}
+
+	window.addEventListener('load', createUploader);
+</script>