More refactoring-cleanup.

* vimium_frontend now has a pretty decent set of exports
* Generic linkHints code has been moved to DomUtils, so future features
  can reuse the code.

1 files changed, 28 insertions, 0 deletions

diff --git a/lib/dom_utils.coffee b/lib/dom_utils.coffee
index 924afbbe..57930f80 100644
--- a/lib/dom_utils.coffee
+++ b/lib/dom_utils.coffee
@@ -1,5 +1,20 @@
 DomUtils =
   #
+  # Adds the given CSS to the page.
+  #
+  addCssToPage: (css, id) ->
+    return if document.getElementById(id)
+    head = document.getElementsByTagName("head")[0]
+    if (!head)
+      head = document.createElement("head")
+      document.documentElement.appendChild(head)
+    style = document.createElement("style")
+    style.id = id
+    style.type = "text/css"
+    style.appendChild(document.createTextNode(css))
+    head.appendChild(style)
+
+  #
   # Runs :callback if the DOM has loaded, otherwise runs it on load
   #
   documentReady: do ->
@@ -8,6 +23,19 @@ DomUtils =
     (callback) -> if loaded then callback() else window.addEventListener("DOMContentLoaded", callback)
 
   #
+  # Adds a list of elements to a page.
+  # Note that adding these nodes all at once (via the parent div) is significantly faster than one-by-one.
+  #
+  addElementList: (els, overlayOptions) ->
+    parent = document.createElement("div")
+    parent.id = overlayOptions.id if overlayOptions.id?
+    parent.className = overlayOptions.className if overlayOptions.className?
+    parent.appendChild(el) for el in els
+
+    document.documentElement.appendChild(parent)
+    parent
+
+  #
   # Remove an element from its DOM tree.
   #
   removeElement: (el) -> el.parentNode.removeChild el