Add Deepin Desktop Environment support.

In DDE, a tools called `dde-open` is used to open preferred app.

DDE use `Deepin` as a desktop name currently,
but in some older version, it was `DEEPIN` or `deepin`

dde-open is provide by dde-api, see [1].

[1]: https://cr.deepin.io/c/dde/dde-api/+/33751

2 files changed, 23 insertions, 0 deletions

diff --git a/scripts/xdg-open.in b/scripts/xdg-open.in
index 021524b..82f9582 100644
--- a/scripts/xdg-open.in
+++ b/scripts/xdg-open.in
@@ -142,6 +142,21 @@ open_kde()
     fi
 }
 
+open_dde()
+{
+    if dde-open -version >/dev/null 2>&1; then
+        dde-open "$1"
+    else
+        open_generic "$1"
+    fi
+
+    if [ $? -eq 0 ]; then
+        exit_success
+    else
+        exit_failure_operation_failed
+    fi
+}
+
 open_gnome3()
 {
     if gio help open 2>/dev/null 1>&2; then
@@ -508,6 +523,10 @@ case "$DE" in
     open_kde "$url"
     ;;
 
+    dde)
+    open_dde "$url"
+    ;;
+
     gnome3|cinnamon)
     open_gnome3 "$url"
     ;;
diff --git a/scripts/xdg-utils-common.in b/scripts/xdg-utils-common.in
index 8b85883..7ba61e0 100644
--- a/scripts/xdg-utils-common.in
+++ b/scripts/xdg-utils-common.in
@@ -288,6 +288,10 @@ detectDE()
          KDE)
            DE=kde;
            ;;
+         # Deepin Desktop Environments
+         DEEPIN|Deepin|deepin)
+           DE=dde;
+           ;;
          LXDE)
            DE=lxde;
            ;;