changes

fusion_pdf_preview/models/__init__.py

@@ -3,5 +3,6 @@
 from . import res_users
 from . import ir_http
 from . import ir_actions_report
+from . import ir_attachment
 from . import res_config_settings
 from . import preview_log

fusion_pdf_preview/models/ir_attachment.py

@@ -0,0 +1,48 @@
+# -*- coding: utf-8 -*-
+
+from odoo import models
+
+
+class IrAttachment(models.Model):
+    _inherit = "ir.attachment"
+
+    def action_fusion_preview(self, title=None, model_name=None, record_ids=None):
+        """Return the right action to "view" this attachment.
+
+        - PDF attachments → fusion_pdf_preview's client dialog (preview
+          + print + download all in one place, with audit log).
+        - Anything else (ZPL, CSV, XML, images, etc.) → legacy
+          new-tab/download URL since the PDF viewer can't render them.
+
+        Drop-in replacement for the common pattern:
+            return {
+                'type': 'ir.actions.act_url',
+                'url':  '/web/content/%s?download=true' % att.id,
+                'target': 'new',
+            }
+
+        Use as:  return att.action_fusion_preview(title='My Doc')
+
+        See CLAUDE.md "PDF Preview" for the full contract.
+        """
+        self.ensure_one()
+        is_pdf = (
+            (self.mimetype or '').lower() == 'application/pdf'
+            or (self.name or '').lower().endswith('.pdf')
+        )
+        if is_pdf:
+            return {
+                'type': 'ir.actions.client',
+                'tag':  'fusion_pdf_preview.open_attachment',
+                'params': {
+                    'attachment_id': self.id,
+                    'title':         title or self.name or 'Document',
+                    'model_name':    model_name or '',
+                    'record_ids':    str(record_ids) if record_ids else '',
+                },
+            }
+        return {
+            'type': 'ir.actions.act_url',
+            'url':  '/web/content/%s?download=true' % self.id,
+            'target': 'new',
+        }