From 1966cea7d092988b69b392564ecfce2b3d7975d3 Mon Sep 17 00:00:00 2001
From: Pedro Pinto Silva <pedro.silva@collabora.com>
Date: Thu, 23 Apr 2026 14:20:31 +0200
Subject: [PATCH] feat: handle UI_PickLink postMessage from Collabora Online

Open the existing FilePickerModal and reply with Action_InsertLink
carrying {url: resource.privateLink, text: resource.name} so Collabora
Online inserts a hyperlink to the picked file (label =
filename). Requires EnableRemoteLinkPicker=true in CheckFileInfo,
added in the companion opencloud-eu/opencloud PR.

Signed-off-by: Pedro Pinto Silva <pedro.silva@collabora.com>
---
 packages/web-app-external/src/App.vue | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/packages/web-app-external/src/App.vue b/packages/web-app-external/src/App.vue
index 344de8381d..4f44becf1e 100644
--- a/packages/web-app-external/src/App.vue
+++ b/packages/web-app-external/src/App.vue
@@ -394,6 +394,27 @@ const handlePostMessagesCollabora = async (event: MessageEvent) => {
         }),
         focusTrapInitial: false
       })
+      return
+    }
+
+    if (message.MessageId === 'UI_PickLink') {
+      dispatchModal({
+        elementClass: 'file-picker-modal',
+        title: $gettext('Pick a file to link'),
+        customComponent: FilePickerModal,
+        hideActions: true,
+        customComponentAttrs: () => ({
+          parentFolderLink: getParentFolderLink(resource),
+          allowedFileTypes: [],
+          callbackFn: ({ resource }: { resource: Resource }) => {
+            postMessageToCollabora('Action_InsertLink', {
+              url: resource.privateLink,
+              text: resource.name
+            })
+          }
+        }),
+        focusTrapInitial: false
+      })
     }
   } catch (e) {
     console.debug('Error parsing Collabora PostMessage', e)