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rubys pushed a commit to branch master
in repository https://git-dual.apache.org/repos/asf/whimsy.git
The following commit(s) were added to refs/heads/master by this push:
new a7b1399 on second thought, continue to update browser cache
a7b1399 is described below
commit a7b1399cd73b5fe870f474a58a4f7cebe86ddf35
Author: Sam Ruby <[email protected]>
AuthorDate: Sun Jul 31 10:07:35 2016 -0400
on second thought, continue to update browser cache
---
www/board/agenda/views/models/pagecache.js.rb | 44 ++++++++++++++++++++-------
1 file changed, 33 insertions(+), 11 deletions(-)
diff --git a/www/board/agenda/views/models/pagecache.js.rb
b/www/board/agenda/views/models/pagecache.js.rb
index 68f6dc7..e8732f4 100644
--- a/www/board/agenda/views/models/pagecache.js.rb
+++ b/www/board/agenda/views/models/pagecache.js.rb
@@ -11,15 +11,13 @@ class PageCache
# is page cache available?
def self.enabled
- # disable service workers for now. See:
- # https://lists.w3.org/Archives/Public/public-webapps/2016JulSep/0016.html
- return false
-
unless location.protocol == 'https:' or location.hostname == 'localhost'
return false
end
- defined?(ServiceWorker) and defined?(navigator)
+ # disable service workers for now. See:
+ # https://lists.w3.org/Archives/Public/public-webapps/2016JulSep/0016.html
+ false and defined?(ServiceWorker) and defined?(navigator)
end
# registration and related startup actions
@@ -39,17 +37,41 @@ class PageCache
end
end
- # add/update bootstrap.html in the cache
+ # aggressively attempt to preload pages directly used by the agenda pages
+ # into the appropriate cache.
def self.preload()
return unless PageCache.enabled?
request = Request.new('bootstrap.html', credentials: 'include')
-
fetch(request).then do |response|
- response.clone().text().then do |text|
- caches.open('board/agenda').then do |cache|
- cache.put(request, response)
- end
+
+ # add/update bootstrap.html in the cache
+ caches.open('board/agenda').then do |cache|
+ cache.put(request, response.clone())
+ end
+
+ urls = []
+
+ # search body text for scripts
+ script = Regexp.new(/<script.*?>/, 'g')
+ matches = text.match(script)
+ matches.each do |match|
+ src = match.match(/src="(.*?)"/)
+ urls << URL.new(src[1], base) if src
+ end
+
+ # search body text for links to stylesheets
+ links = Regexp.new(/<link.*?>/, 'g')
+ matches = text.match(links)
+ matches.each do |match|
+ href = match.match(/href="(.*?)"/)
+ urls << URL.new(href[1], base) if href
+ end
+
+ # update browser cache with latest scripts and stylesheets. Note: no
+ # network requests will be made if these pages are up to date
+ urls.each do |url|
+ fetch(Request.new(url, credentials: 'include'))
end
end
end
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