From f66a0bad2e040509398e1eb0c21ccd5608a7daee Mon Sep 17 00:00:00 2001
From: Michael Jumper <mike.jumper@guac-dev.org>
Date: Thu, 24 Apr 2014 12:42:10 -0700
Subject: [PATCH] GUAC-637: Implement zoom in/out. Fix auto-fit checkbox logic.

---
 .../src/main/webapp/scripts/client-ui.js      | 23 ++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/guacamole/src/main/webapp/scripts/client-ui.js b/guacamole/src/main/webapp/scripts/client-ui.js
index 92b5d7df1..9c1879df6 100644
--- a/guacamole/src/main/webapp/scripts/client-ui.js
+++ b/guacamole/src/main/webapp/scripts/client-ui.js
@@ -785,9 +785,8 @@ GuacUI.Client.setScale = function(new_scale) {
 
     GuacUI.Client.zoom_state.textContent = Math.round(new_scale * 100) + "%";
 
-    // Auto-fit is implicitly enabled at minimum zoom level
-    if (new_scale === GuacUI.Client.min_zoom)
-        GuacUI.Client.auto_fit.checked = true;
+    // Auto-fit is enabled iff minimum zoom level
+    GuacUI.Client.auto_fit.checked = (new_scale === GuacUI.Client.min_zoom);
 
     // Disable auto-fit if zoom is required
     GuacUI.Client.auto_fit.disabled = (GuacUI.Client.min_zoom >= 1);
@@ -2024,6 +2023,24 @@ GuacUI.Client.attach = function(guac) {
 
     };
 
+    GuacUI.Client.zoom_in.onclick = function() {
+
+        // Zoom in by 10%
+        var guac = GuacUI.Client.attachedClient;
+        if (guac)
+            GuacUI.Client.setScale(guac.getScale() + 0.1);
+
+    };
+
+    GuacUI.Client.zoom_out.onclick = function() {
+
+        // Zoom out by 10%
+        var guac = GuacUI.Client.attachedClient;
+        if (guac)
+            GuacUI.Client.setScale(guac.getScale() - 0.1);
+
+    };
+
     // Prevent default on all touch events
     document.addEventListener("touchstart", function(e) {