[ADD] allow previewing binary fields on forms

[FIX] error on list views without binary fields

attachment_preview/static/src/css/attachment_preview.css

@@ -19,3 +19,8 @@
     -webkit-border-radius: 2px;
     border-radius: 2px;
 }
+.openerp .oe-binary-preview
+{
+    cursor: pointer;
+    vertical-align: middle;
+}

attachment_preview/static/src/js/attachment_preview.js

@@ -126,6 +126,10 @@ openerp.attachment_preview = function(instance)
             deferred.then(function()
             {
                 var $elements = self.$el.find('.oe-binary-preview');
+                if(!$elements.length)
+                {
+                    return;
+                }
                 $elements.click(function(e)
                 {
                     e.stopPropagation();
@@ -187,4 +191,50 @@ openerp.attachment_preview = function(instance)
             return link;
         }
     });
+    instance.web.form.FieldBinaryFile.include(
+    {
+        render_value: function()
+        {
+            this._super.apply(this, arguments);
+            if(this.get("effective_readonly") && this.get('value'))
+            {
+                var self = this;
+                (new instance.web.Model('ir.attachment')).call(
+                    'get_binary_extension',                                                                    [
+                    this.view.dataset.model,
+                    this.view.datarecord.id ? [this.view.datarecord.id] : [],
+                    this.name,
+                    this.node.attrs.filename,
+                    ],
+                    {})
+                .then(function(extensions)
+                {
+                    _(extensions).each(function(extension)
+                    {
+                        var $element = self.$el.find('.oe-binary-preview');
+                        if(openerp.attachment_preview.can_preview(extension))
+                        {
+                            $element.click(function()
+                            {
+                                openerp.attachment_preview.show_preview(
+                                    null,
+                                    _.str.sprintf(
+                                        '/web/binary/saveas?session_id=%s&model=%s&field=%s&id=%d',
+                                        instance.session.session_id,
+                                        self.view.dataset.model,
+                                        self.name,
+                                        self.view.datarecord.id),
+                                    extension,
+                                    self.view.datarecord[self.node.attrs.filename]);
+                            });
+                        }
+                        else
+                        {
+                            $element.remove();
+                        }
+                    });
+                });
+            }
+        },
+    });
 }    

attachment_preview/static/src/xml/attachment_preview.xml

@@ -7,4 +7,9 @@
             </a>
         </t>
     </t>
+    <t t-extend="FieldBinaryFile">
+        <t t-jquery="a.oe_form_uri" t-operation="after">
+            <img class="oe-binary-preview" t-att-src='_s + "/web/static/src/img/icons/gtk-print-preview.png"'/>
+        </t>
+    </t>
 </templates>