Show the warning dialog with erase confirmation everytime (#750)

Make the dialog to appear all the time and not only for drives
bigger than 32GB.

src/app/qml/DeviceWarningDialog.qml

@@ -51,7 +51,7 @@ ApplicationWindow {
 
         Label {
             Layout.fillWidth: true
-            text: qsTr("The device you have selected appears to be larger than 32GB. Are you sure you want to completely erase all the data on it?")
+            text: qsTr("The entire device (all of %1) will be erased and the selected image will be written to it. Do you want to continue?").arg(formatSize(drives.selected.size))
             wrapMode: Label.Wrap
         }
 
@@ -87,5 +87,21 @@ ApplicationWindow {
             }
         }
     }
+
+    function formatSize(bytes) {
+        const kb = 1024;
+        const mb = kb * 1024;
+        const gb = mb * 1024;
+
+        if (bytes >= gb) {
+            return (bytes / gb).toFixed(2) + " " + qsTr("GB");
+        } else if (bytes >= mb) {
+            return (bytes / mb).toFixed(2) + " " + qsTr("MB");
+        } else if (bytes >= kb) {
+            return (bytes / kb).toFixed(2) + " " + qsTr("KB");
+        } else {
+            return bytes + " " + qsTr("Bytes");
+        }
+    }
 }
 

src/app/qml/DrivePage.qml

@@ -190,14 +190,6 @@ Page {
             return;
         }
 
-        // Better check for > 33GB as the device size is not exactly 32GB for "32GB" USB drive
-        if (drives.selected.size > 33000000000) {
-            deviceWarningDialog.show();
-            return
-        }
-
-        selectedPage = Units.Page.DownloadPage
-        drives.selected.setImage(releases.variant)
-        drives.selected.write(releases.variant)
+        deviceWarningDialog.show();
     }
 }