added video embedd macro

init.rb

@@ -26,3 +26,43 @@ Redmine::Plugin.register :baupm_core do
     'baupm_enable_webapp' => '1'
   }, :partial => 'settings/baupm_settings'
 end
+
+Redmine::WikiFormatting::Macros.register do
+  desc <<-DESCRIPTION
+    Embed video attachments
+
+    {{video(attachment.mp4)}} show video with default size 640x360
+    {{video(attachment.mp4, width=480, height=320)}} show video with size 480x320
+    DESCRIPTION
+
+  macro :video do |obj, args|
+    @width = args[1].gsub(/\D/,'') if args[1]
+    @height = args[2].gsub(/\D/,'') if args[2]
+    @width ||= 640
+    @height ||= 360
+    attachment = obj.attachments.find_by_filename(args[0]) if obj.respond_to?('attachments')
+
+    if attachment
+      file_url = url_for(
+        :only_path => false,
+        :controller => 'attachments',
+        :action => 'download',
+        :id => attachment,
+        :filename => attachment.filename
+      )
+out = <<END
+<video width="#{@width}" height="#{@height}" playsinline controls class="embedded-video">
+ <source src="#{file_url}">
+ Your browser does not support the video tag.
+</video>
+END
+    else
+      file_url = args[0].gsub(/<.*?>/, '').gsub(/&lt;.*&gt;/,'')
+out = <<END
+<iframe width="#{@width}" height="#{@height}" src="#{file_url}" class="embedded-video"></iframe>
+END
+    end
+
+    out.html_safe
+  end
+end