[simple-scan] Fix incorrect scan button tooltips

[Bartosz <bkosiorek src gnome org>]

commit e425d7eb271814709d2ded32772767bf1b323fee
Author: Yetoo1 <yetoohappy gmail com>
Date:   Mon Nov 8 06:15:54 2021 -0800

    Fix incorrect scan button tooltips

 data/ui/app-window.ui | 2 +-
 src/app-window.vala   | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)
---
diff --git a/data/ui/app-window.ui b/data/ui/app-window.ui
index 12bd83b1..744b8c28 100644
--- a/data/ui/app-window.ui
+++ b/data/ui/app-window.ui
@@ -519,7 +519,7 @@
                     <property name="visible">True</property>
                     <property name="sensitive">False</property>
                     <property name="receives_default">False</property>
-                    <property name="tooltip_text" translatable="yes" comments="Tooltip for scan toolbar 
button">Scan a single page from the scanner</property>
+                    <property name="tooltip_text" translatable="yes" comments="Tooltip for scan toolbar 
button. Replaced by text associated with each scan type."></property>
                     <property name="use_underline">True</property>
                     <signal name="clicked" handler="scan_button_clicked_cb" swapped="no"/>
                     <child>
diff --git a/src/app-window.vala b/src/app-window.vala
index dc28508a..a2eab235 100644
--- a/src/app-window.vala
+++ b/src/app-window.vala
@@ -904,14 +904,17 @@ public class AppWindow : Hdy.ApplicationWindow
         case ScanType.SINGLE:
             scan_single_radio.active = true;
             scan_options_image.icon_name = "scanner-symbolic";
+            scan_button.tooltip_text = _("Scan a single page from the scanner");
             break;
         case ScanType.ADF:
             scan_adf_radio.active = true;
             scan_options_image.icon_name = "scan-type-adf-symbolic";
+            scan_button.tooltip_text = _("Scan multiple pages from the scanner");
             break;
         case ScanType.BATCH:
             scan_batch_radio.active = true;
             scan_options_image.icon_name = "scan-type-batch-symbolic";
+            scan_button.tooltip_text = _("Scan multiple pages from the scanner");
             break;
         }
     }