Steal kernel.org's libravatar lua.

diff --git a/cgit.css b/cgit.css
index 1b848cf712c9e93c3c29e299008786d6edae87d4..f525ecc61e068745b5d260beb7a4de299220b142 100644 (file)
--- a/cgit.css
+++ b/cgit.css
@@ -897,3 +897,31 @@ div#cgit table.ssdiff td.space {
 div#cgit table.ssdiff td.space div {
        min-height: 3em;
 }
+div#cgit span.libravatar img.onhover {
+        display: none;
+        border: 1px solid gray;
+        padding: 0px;
+        -webkit-border-radius: 4px;
+        -moz-border-radius: 4px;
+        border-radius: 4px;
+        width: 128px;
+        height: 128px;
+}
+
+div#cgit span.libravatar img.inline {
+        -webkit-border-radius: 3px;
+        -moz-border-radius: 3px;
+        border-radius: 3px;
+        width: 13px;
+        height: 13px;
+        margin-right: 0.2em;
+        opacity: 0.6;
+}
+
+div#cgit span.libravatar:hover > img.onhover {
+        display: block;
+        position: absolute;
+        margin-left: 1.5em;
+        background-color: #eeeeee;
+        box-shadow: 2px 2px 7px rgba(100,100,100,0.75);
+}

diff --git a/filters/email-libravatar-hover.lua b/filters/email-libravatar-hover.lua
new file mode 100644 (file)
index 0000000..c14b618
--- /dev/null
+++ b/filters/email-libravatar-hover.lua
@@ -0,0 +1,25 @@
+local digest = require("openssl.digest")
+
+function md5_hex(input)
+       local b = digest.new("md5"):final(input)
+       local x = ""
+       for i = 1, #b do
+               x = x .. string.format("%.2x", string.byte(b, i))
+       end
+       return x
+end
+
+function filter_open(email, page)
+       buffer = ""
+       hexdigest = md5_hex(email:sub(2, -2):lower())
+end
+
+function filter_close()
+       baseurl = os.getenv("HTTPS") and "https://seccdn.libravatar.org/" or "http://cdn.libravatar.org/"
+       html("<span class='libravatar'><img class='inline' src='" .. baseurl .. "avatar/" .. hexdigest .. "?s=13&amp;d=retro' /><img class='onhover' src='" .. baseurl .. "avatar/" .. hexdigest .. "?s=128&amp;d=retro' /></span>" .. buffer)
+       return 0
+end
+
+function filter_write(str)
+       buffer = buffer .. str
+end