diff options
Diffstat (limited to 'background_scripts')
| -rw-r--r-- | background_scripts/completion_engines.coffee | 60 |
1 files changed, 31 insertions, 29 deletions
diff --git a/background_scripts/completion_engines.coffee b/background_scripts/completion_engines.coffee index 189f66f3..f15e6db4 100644 --- a/background_scripts/completion_engines.coffee +++ b/background_scripts/completion_engines.coffee @@ -21,12 +21,11 @@ # A base class for common regexp-based matching engines. class RegexpEngine - constructor: (@regexps) -> + constructor: (args...) -> @regexps = args.map (regexp) -> new RegExp regexp match: (searchUrl) -> Utils.matchesAnyRegexp @regexps, searchUrl # Several Google completion engines package XML responses in this way. class GoogleXMLRegexpEngine extends RegexpEngine - doNotCache: false # true (disbaled, experimental) parse: (xhr) -> for suggestion in xhr.responseXML.getElementsByTagName "suggestion" continue unless suggestion = suggestion.getAttribute "data" @@ -34,31 +33,47 @@ class GoogleXMLRegexpEngine extends RegexpEngine class Google extends GoogleXMLRegexpEngine # Example search URL: http://www.google.com/search?q=%s - constructor: -> - super [ - # We match the major English-speaking TLDs. - new RegExp "^https?://[a-z]+\.google\.(com|ie|co\.uk|ca|com\.au)/" - new RegExp "localhost/cgi-bin/booky" # Only for smblott. - ] + constructor: (regexps = null) -> + super regexps ? "^https?://[a-z]+\.google\.(com|ie|co\.uk|ca|com\.au)/" getUrl: (queryTerms) -> Utils.createSearchUrl queryTerms, "http://suggestqueries.google.com/complete/search?ss_protocol=legace&client=toolbar&q=%s" +# A wrapper class for Google completions. This adds prefix terms to the query, and strips those terms from +# the resulting suggestions. For example, for Google Maps, we add "map of" as a prefix, then strip "map of" +# from the resulting suggestions. +class GoogleWithPrefix + constructor: (prefix, args...) -> + @engine = new Google args... + @prefix = "#{prefix.trim()} " + @queryTerms = @prefix.split /\s+/ + match: (args...) -> @engine.match args... + getUrl: (queryTerms) -> @engine.getUrl [ @queryTerms..., queryTerms... ] + parse: (xhr) -> + @engine.parse(xhr) + .filter (suggestion) => suggestion.startsWith @prefix + .map (suggestion) => suggestion[@prefix.length..].ltrim() + +# For Google Maps, we add the prefix "map of" to the query, and send it to Google's general search engine, +# then strip "map of" from the resulting suggestions. +class GoogleMaps extends GoogleWithPrefix + # Example search URL: https://www.google.com/maps?q=%s + constructor: -> super "map of", "https?://[a-z]+\.google\.(com|ie|co\.uk|ca|com\.au)/maps" + class Youtube extends GoogleXMLRegexpEngine # Example search URL: http://www.youtube.com/results?search_query=%s constructor: -> - super [ new RegExp "^https?://[a-z]+\.youtube\.com/results" ] + super "^https?://[a-z]+\.youtube\.com/results" getUrl: (queryTerms) -> Utils.createSearchUrl queryTerms, "http://suggestqueries.google.com/complete/search?client=youtube&ds=yt&xml=t&q=%s" class Wikipedia extends RegexpEngine - doNotCache: false # true (disbaled, experimental) # Example search URL: http://www.wikipedia.org/w/index.php?title=Special:Search&search=%s constructor: -> - super [ new RegExp "^https?://[a-z]+\.wikipedia\.org/" ] + super "^https?://[a-z]+\.wikipedia\.org/" getUrl: (queryTerms) -> Utils.createSearchUrl queryTerms, @@ -67,28 +82,15 @@ class Wikipedia extends RegexpEngine parse: (xhr) -> JSON.parse(xhr.responseText)[1] -## Does not work... -## class GoogleMaps extends RegexpEngine -## # Example search URL: https://www.google.com/maps/search/%s -## constructor: -> -## super [ new RegExp "^https?://www\.google\.com/maps/search/" ] -## -## getUrl: (queryTerms) -> -## "https://www.google.com/s?tbm=map&fp=1&gs_ri=maps&source=hp&suggest=p&authuser=0&hl=en&pf=p&tch=1&ech=2&q=#{Utils.createSearchQuery queryTerms}" -## -## parse: (xhr) -> -## data = JSON.parse xhr.responseText -## [] - class Bing extends RegexpEngine # Example search URL: https://www.bing.com/search?q=%s - constructor: -> super [ new RegExp "^https?://www\.bing\.com/search" ] + constructor: -> super "^https?://www\.bing\.com/search" getUrl: (queryTerms) -> Utils.createSearchUrl queryTerms, "http://api.bing.com/osjson.aspx?query=%s" parse: (xhr) -> JSON.parse(xhr.responseText)[1] class Amazon extends RegexpEngine # Example search URL: http://www.amazon.com/s/?field-keywords=%s - constructor: -> super [ new RegExp "^https?://www\.amazon\.(com|co.uk|ca|com.au)/s/" ] + constructor: -> super "^https?://www\.amazon\.(com|co.uk|ca|com.au)/s/" getUrl: (queryTerms) -> Utils.createSearchUrl queryTerms, "https://completion.amazon.com/search/complete?method=completion&search-alias=aps&client=amazon-search-ui&mkt=1&q=%s" @@ -96,15 +98,14 @@ class Amazon extends RegexpEngine class DuckDuckGo extends RegexpEngine # Example search URL: https://duckduckgo.com/?q=%s - constructor: -> super [ new RegExp "^https?://([a-z]+\.)?duckduckgo\.com/" ] - getUrl: (queryTerms) -> + constructor: -> super "^https?://([a-z]+\.)?duckduckgo\.com/" getUrl: (queryTerms) -> Utils.createSearchUrl queryTerms, "https://duckduckgo.com/ac/?q=%s" parse: (xhr) -> suggestion.phrase for suggestion in JSON.parse xhr.responseText class Webster extends RegexpEngine # Example search URL: http://www.merriam-webster.com/dictionary/%s - constructor: -> super [ new RegExp "^https?://www.merriam-webster.com/dictionary/" ] + constructor: -> super "^https?://www.merriam-webster.com/dictionary/" getUrl: (queryTerms) -> Utils.createSearchUrl queryTerms, "http://www.merriam-webster.com/autocomplete?query=%s" parse: (xhr) -> JSON.parse(xhr.responseText).suggestions @@ -120,6 +121,7 @@ class DummyCompletionEngine # Note: Order matters here. CompletionEngines = [ Youtube + GoogleMaps Google DuckDuckGo Wikipedia |