Orgs: made the admin picker a bit nicer to work with

Also it now asks for a confirmation before transferring admin-ship to
the new admin user.

src/templates/organizations/view_embed.jade

@@ -47,11 +47,16 @@
 		| {% endif %}
 		.input-group
 			label.item-admin-user Org admin
+			p#admin-name
+				a(href='javascript:showAdminPicker()', title='Click to choose another administrator') {{ admin_user.full_name }}
+			p#admin-picker
 				input#admin-select.form-control(
 					name='admin_user',
 					type='text',
-				placeholder='Administrator',
-				value='{{ admin_user.full_name }}')
+					placeholder='Administrator')
+				a(href='javascript:hideAdminPicker()')
+					i.pi-cancel.text-danger
+			script $('#admin-picker').hide();
 		.input-group
 			button#item-save.btn.btn-default.btn-block(type='submit')
 				i.pi-check
@@ -220,7 +225,7 @@ script.
 			'{{config.ALGOLIA_PUBLIC_KEY}}',
 			'{{config.ALGOLIA_INDEX_USERS}}',
 			function (event, hit, dataset) {
-				setAdmin(hit.objectID);
+				setAdmin(hit.objectID, hit.full_name);
 			}
 		);
 
@@ -247,14 +252,21 @@ script.
 			});
 		};
 
-		function setAdmin(userId) {
-			if (!userId || userId.length == 0) {
+		function setAdmin(user_id, full_name) {
+			if (!user_id || user_id.length == 0) {
 				toastr.error('Please select a user from the list');
 				return;
 			}
+
+			if (!confirm("Are you sure you want to transfer administrator privileges to " + full_name + "?")) {
+				hideAdminPicker();
+				toastr.warning('Cancelled administrative transfer.');
+				return;
+			}
+
 			patchOrganization({
 				op: 'assign-admin',
-				user_id: userId
+				user_id: user_id
 			})
 			.done(function (data) {
 				window.location.reload();
@@ -359,4 +371,15 @@ script.
 		return false;
 	}
 
+	function showAdminPicker() {
+		$('#admin-name').hide();
+		$('#admin-picker').show(function() {
+			$(this).find('input').focus();
+		});
+	}
+	function hideAdminPicker() {
+		$('#admin-picker').hide();
+		$('#admin-name').show();
+	}
+
 | {% endblock %}