plugin updater: show changes before updating

classes/pref/prefs.php

@@ -1174,7 +1174,7 @@ class Pref_Prefs extends Handler_Protected {
 			$root_dir = dirname(dirname(__DIR__)); # we're in classes/pref/
 
 			if (!empty($plugin_name)) {
-				$rv = ["plugin" => $plugin_name, "rv" => self::_plugin_needs_update($root_dir, $plugin_name)];
+				$rv = [["plugin" => $plugin_name, "rv" => self::_plugin_needs_update($root_dir, $plugin_name)]];
 			} else {
 				$rv = self::_get_updated_plugins();
 			}

js/PrefHelpers.js

@@ -323,23 +323,52 @@ const	Helpers = {
 			});
 		},
 		update: function(name = null) {
-			const msg = name ? __("Update %p using git?").replace("%p", name) :
-				__("Update all local plugins using git?");
-
-			if (confirm(msg)) {
 
 			const dialog = new fox.SingleUseDialog({
 				title: __("Plugin Updater"),
-					execute: function() {
+				need_refresh: false,
+				onHide: function() {
+					if (this.need_refresh) {
 						Helpers.Prefs.refresh();
+					}
+				},
+				performUpdate: function() {
+					const container = dialog.domNode.querySelector(".update-results");
+
+					container.innerHTML = `<li>${__("Loading, please wait...")}</li>`;
+
+					xhr.json("backend.php", {op: "pref-prefs", method: "updateLocalPlugins", name: name}, (reply) => {
+
+						if (!reply) {
+							container.innerHTML = `<li>${__("Operation failed: check event log.")}</li>`;
+						} else {
+							container.innerHTML = "";
+
+							reply.forEach((p) => {
+								if (p.rv.s == 0) dialog.need_refresh = true;
+
+								container.innerHTML +=
+								`
+								<li><h3 style="margin-top: 0">${p.plugin}</h3>
+									${p.rv.e ? `<pre class="small text-error">${p.rv.e}</pre>` : ''}
+									${p.rv.o ? `<pre class="small text-success">${p.rv.o}</pre>` : ''}
+									<p class="small">
+										${p.rv.s ? __("Exited with RC: %d").replace("%d", p.rv.s) : __("OK")}
+									</p>
+								</li>
+								`
+							});
+						}
+					});
 				},
 				content: `
 					<ul class="panel panel-scrollable update-results">
 						<li>${__("Loading, please wait...")}</li>
 					</ul>
 
-						<footer class="text-center">
-							${App.FormFields.submit_tag(__("Reload preferences"))}
+					<footer>
+						${App.FormFields.button_tag(__("Update"), "", {class: "alt-primary", onclick: "App.dialogOf(this).performUpdate()"})}
+						${App.FormFields.cancel_dialog_tag(__("Close"))}
 					</footer>
 				`,
 			});
@@ -347,11 +376,11 @@ const	Helpers = {
 			const tmph = dojo.connect(dialog, 'onShow', function () {
 				dojo.disconnect(tmph);
 
-					xhr.json("backend.php", {op: "pref-prefs", method: "updateLocalPlugins", name: name}, (reply) => {
+				xhr.json("backend.php", {op: "pref-prefs", method: "checkForPluginUpdates", name: name}, (reply) => {
 					const container = dialog.domNode.querySelector(".update-results");
 
 					if (!reply) {
-							container.innerHTML = __("Operation failed: check event log.");
+						container.innerHTML = `<li>${__("Operation failed: check event log.")}</li>`;
 					} else {
 						container.innerHTML = "";
 
@@ -373,7 +402,6 @@ const	Helpers = {
 			});
 
 			dialog.show();
-			}
 		},
 	},
 	OPML: {