Issue 4577 - Remove Safari support

safari/ext/common.js

-/*
- * This file is part of Adblock Plus <https://adblockplus.org/>,
- * Copyright (C) 2006-2016 Eyeo GmbH
- *
- * Adblock Plus is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 3 as
- * published by the Free Software Foundation.
- *
- * Adblock Plus is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-(function()
-{
-  /* Message passing */
-
-  var MessageProxy = ext._MessageProxy = function(messageDispatcher)
-  {
-    this._messageDispatcher = messageDispatcher;
-    this._responseCallbacks = Object.create(null);
-    this._responseCallbackCounter = 0;
-  };
-  MessageProxy.prototype = {
-    _sendResponse: function(request, message)
-    {
-      var response = {};
-
-      if ("documentId" in request)
-        response["targetDocuments"] = [request["documentId"]];
-
-      for (var prop in request)
-        response[prop] = request[prop];
-      response.payload = message;
-
-      this._messageDispatcher.dispatchMessage("response", response);
-    },
-    handleRequest: function(request, sender)
-    {
-      if ("callbackId" in request)
-      {
-        var sent = false;
-        var sendResponse = function(message)
-        {
-          this._sendResponse(request, message);
-          sent = true;
-        }.bind(this);
-
-        var results = ext.onMessage._dispatch(request.payload, sender, sendResponse);
-
-        // The onMessage listener has to return true to indicate that a response
-        // is sent later asynchronously. Otherwise if no response was sent yet,
-        // we sent a response indicating that there is no response, that
-        // the other end can remove the callback and doesn't leak memory.
-        if (!sent && results.indexOf(true) == -1)
-          this._sendResponse(request, undefined);
-      }
-      else
-      {
-        ext.onMessage._dispatch(request.payload, sender, function() {});
-      }
-    },
-    handleResponse: function(response)
-    {
-      var callbackId = response.callbackId;
-      var callback = this._responseCallbacks[callbackId];
-      if (callback)
-      {
-        delete this._responseCallbacks[callbackId];
-
-        if (typeof response.payload != "undefined")
-          callback(response.payload);
-      }
-    },
-    sendMessage: function(message, responseCallback, extra)
-    {
-      var request = {payload: message};
-
-      if (responseCallback)
-      {
-        request.callbackId = ++this._responseCallbackCounter;
-        this._responseCallbacks[request.callbackId] = responseCallback;
-      }
-
-      for (var prop in extra)
-        request[prop] = extra[prop];
-
-      this._messageDispatcher.dispatchMessage("request", request);
-    }
-  };
-
-  ext.onMessage = new ext._EventTarget();
-
-
-  /* I18n */
-
-  var getLocaleCandidates = function()
-  {
-    var candidates = [];
-    var defaultLocale = "en_US";
-
-    // e.g. "ja-jp-mac" -> "ja_JP", note that the part after the second
-    // dash is dropped, since we only support language and region
-    var [language, region] = navigator.language.split("-");
-
-    if (region)
-    {
-      region = region.toUpperCase();
-
-      // e.g. "es-AR" -> "es_419", note that we combine all dialects of
-      // Spanish outside of Spain, the same way Google Chrome does,
-      // since we use the same translations as for the Chrome extension
-      if (language == "es" && region != "ES")
-        region = "419";
-
-      candidates.push(language + "_" + region);
-    }
-
-    candidates.push(language);
-
-    if (candidates.indexOf(defaultLocale) == -1)
-      candidates.push(defaultLocale);
-
-    return candidates;
-  };
-
-  var initCatalog = function(uiLocale)
-  {
-    var bidiDir = /^(ar|fa|he|ug|ur)(_|$)/.test(uiLocale) ? "rtl" : "ltr";
-    var catalog = Object.create(null);
-
-    catalog["@@ui_locale"] = [uiLocale, []];
-    catalog["@@bidi_dir" ] = [bidiDir,  []];
-
-    return catalog;
-  };
-
-  var locales = getLocaleCandidates();
-  var catalog = initCatalog(locales[0]);
-
-  var replacePlaceholder = function(text, placeholder, content)
-  {
-    return text.split("$" + placeholder + "$").join(content || "");
-  };
-
-  var parseMessage = function(rawMessage)
-  {
-    var text = rawMessage.message;
-    var placeholders = [];
-
-    for (var placeholder in rawMessage.placeholders)
-    {
-      var content = rawMessage.placeholders[placeholder].content;
-
-      if (/^\$\d+$/.test(content))
-        placeholders[parseInt(content.substr(1), 10) - 1] = placeholder;
-      else
-        text = replacePlaceholder(text, placeholder, content);
-    }
-
-    return [text, placeholders];
-  };
-
-  var readCatalog = function(locale)
-  {
-    var xhr = new XMLHttpRequest();
-    xhr.open("GET", safari.extension.baseURI + "_locales/" + locale + "/messages.json", false);
-
-    try
-    {
-      xhr.send();
-    }
-    catch (e)
-    {
-      return;
-    }
-
-    if (xhr.status != 200 && xhr.status != 0)
-      return;
-
-    var rawCatalog = JSON.parse(xhr.responseText);
-    for (var msgId in rawCatalog)
-    {
-      if (!(msgId in catalog))
-        catalog[msgId] = parseMessage(rawCatalog[msgId]);
-    }
-  };
-
-  ext.i18n = {
-    getMessage: function(msgId, substitutions)
-    {
-      while (true)
-      {
-        var message = catalog[msgId];
-        if (message)
-        {
-          var [text, placeholders] = message;
-
-          if (!(substitutions instanceof Array))
-            substitutions = [substitutions];
-
-          for (var i = 0; i < placeholders.length; i++)
-            text = replacePlaceholder(text, placeholders[i], substitutions[i]);
-
-          return text;
-        }
-
-        if (locales.length == 0)
-          return "";
-
-        readCatalog(locales.shift());
-      }
-    }
-  };
-
-
-  /* Utils */
-
-  ext.getURL = function(path)
-  {
-    return safari.extension.baseURI + path;
-  };
-})();