Integrated URL Fixer into Adblock Plus

lib/typoAppIntegration.js

Index: lib/typoAppIntegration.js
===================================================================
new file mode 100644
--- /dev/null
+++ b/lib/typoAppIntegration.js
@@ -0,0 +1,353 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+let {hook} = require("hooks");
+let {application, addonName} = require("info");
+
+let functionHooks = new WeakMap();
+
+exports.removeFromWindow = function(window)
+{
+  if (functionHooks.has(window))
+  {
+    let unhook = functionHooks.get(window);
+    unhook();
+    functionHooks.delete(window);
+  }
+};
+
+switch (addonName)
+{
+  case "url-fixer":
+  {
+    // URL Fixer
+    exports.isTypoCorrectionEnabled = function(window, prefix, domain, suffix) true;
+    
+    break;
+  }
+  case "adblockplus":
+  {
+    // Adblock Plus
+    exports.isTypoCorrectionEnabled = function(window, prefix, domain, suffix)
+    {
+      let {Prefs} = require("prefs");
+      
+      if (!Prefs.correctTyposAsk && !Prefs.correctTypos)
+      {
+        let {Utils} = require("utils");
+        let message = Utils.getString("typo_optin_message").replace(/\?1\?/, domain);
+        let yes = Utils.getString("typo_optin_yes");
+        let no = Utils.getString("typo_optin_no");
+        let buttons = [
+          {
+            label:      yes,
+            accessKey:  null,
+            callback:   function()
+            {
+              // Yes: Enable typo correction
+              Prefs.correctTypos = true;
+              
+              exports.loadURI(window, prefix + domain + suffix);
+            }
+          },
+          {
+            label:      no,
+            accessKey:  null,
+            callback:   function()
+            {
+              // No: Do nothing
+            }
+          }
+        ];
+        // We need to have persistence being set to 1 due to redirect which happens afterwards
+        exports.openInfobar(window, "adblockplus-infobar-correct-typos-ask", message, buttons, 1);
+        
+        Prefs.correctTyposAsk = true;

[Wladimir Palant, 2012/11/09 08:26:15]

No, this flag should only be set once the user makes a decision. The
notification might disappear for one reason or another, if the user didn't click
a button we should show it again next time.

Also, please make sure to set this flag if the user changes correctTypos
preference manually (e.g. in our settings) - user found the feature, we
shouldn't ask any more. Something along these lines:

    Prefs.addListener(function(pref)
    {
      if (pref == "correctTypos")
        Prefs.correctTyposAsked = true;
    });

+        
+        return false;

[Wladimir Palant, 2012/11/09 08:26:15]

This line is unnecessary - if you remove it we will just return
Prefs.correctTypos which happens to be false here. This will be more consistent.

+      }
+      
+      return Prefs.correctTypos;
+    };
+    
+    break;
+  }
+}
+
+switch (application)
+{
+  case "firefox":
+  {
+    // Firefox
+    exports.isKnownWindow = function(window) window.document.documentElement.getAttribute("windowtype") == "navigator:browser";
+
+    exports.getURLBar = function(window) "gURLBar" in window ? window.gURLBar : null;
+
+    exports.getBrowser = function(window) "gBrowser" in window ? window.gBrowser : null;
+
+    exports.applyToWindow = function(window, corrector)
+    {
+      let urlbar = exports.getURLBar(window);
+      if (urlbar && urlbar.handleCommand && !functionHooks.has(window))
+      {
+        // Handle new URLs being entered
+        let unhook = hook(urlbar, "handleCommand", function()
+        {
+          let correction = corrector(window, urlbar.value);
+          if (correction)
+            urlbar.value = correction;
+        });
+        functionHooks.set(window, unhook);
+      }
+    };
+
+    exports.openInfobar = function(window, id, message, buttons, persistence)
+    {
+      let browser = exports.getBrowser(window);
+      let infobar = browser.getNotificationBox();
+      let notification = infobar.getNotificationWithValue(id);
+
+      if (notification)
+      {
+        infobar.removeNotification(notification);
+      }
+      notification = infobar.appendNotification(
+        message,
+        id,
+        "chrome://" + addonName + "/skin/icon16.png",
+        infobar.PRIORITY_INFO_HIGH,
+        buttons
+      );
+      notification.persistence = persistence;
+    };
+
+    exports.loadURI = function(window, uri)
+    {
+      exports.getBrowser(window).loadURI(uri);
+    };
+
+    break;
+  }
+  case "seamonkey":
+  {
+    let eventListeners = new WeakMap();
+
+    // SeaMonkey
+    exports.isKnownWindow = function(window) window.document.documentElement.getAttribute("windowtype") == "navigator:browser";
+
+    exports.getURLBar = function(window) "gURLBar" in window ? window.gURLBar : null;
+
+    exports.getBrowser = function(window) "gBrowser" in window ? window.gBrowser : null;
+
+    exports.applyToWindow = function(window, corrector)
+    {
+      let urlbar = exports.getURLBar(window);
+      let goButton = window.document.getElementById("go-button-container");
+
+      if (urlbar && urlbar._fireEvent && !functionHooks.has(window))
+      {
+        function correctURL()
+        {
+          let correction = corrector(window, urlbar.value);
+          if (correction)
+            urlbar.value = correction;
+        }
+
+        let unhook = hook(urlbar, "_fireEvent", function(eventType)
+        {
+          if (eventType == "textentered")
+          {
+            correctURL();
+          }
+        });
+        functionHooks.set(window, unhook);
+
+        if (goButton)
+        {
+          goButton.addEventListener("command", correctURL, true);
+          eventListeners.set(window, {
+            "listener": correctURL,
+            "element": goButton
+          });
+        }
+      }
+    };
+
+    let basicRemove = exports.removeFromWindow;
+    exports.removeFromWindow = function(window)
+    {
+      basicRemove(window);
+
+      if (eventListeners.has(window))
+      {
+        let eventListener = eventListeners.get(window);
+        eventListener.element.removeEventListener("command", eventListener.listener, true);
+        eventListeners.delete(window);
+      }
+    };
+
+    exports.openInfobar = function(window, id, message, buttons, persistence)
+    {
+      let browser = exports.getBrowser(window);
+      let infobar = browser.getNotificationBox();
+      let notification = infobar.getNotificationWithValue(id);
+
+      if (notification)
+      {
+        infobar.removeNotification(notification);
+      }
+
+      notification = infobar.appendNotification(
+        message,
+        id,
+        "chrome://" + addonName + "/skin/icon16.png",
+        infobar.PRIORITY_INFO_HIGH,
+        buttons
+      );
+      notification.persistence = persistence;
+    };
+
+    exports.loadURI = function(window, uri)
+    {
+      exports.getBrowser(window).loadURI(uri);
+    };
+
+    break;
+  }
+  case "fennec":
+  {
+    // XUL Fennec
+    exports.isKnownWindow = function(window) window.document.documentElement.getAttribute("windowtype") == "navigator:browser";
+
+    exports.getURLBar = function(window) null;
+
+    exports.getBrowser = function(window) null;
+
+    exports.applyToWindow = function(window, corrector)
+    {
+      if ("BrowserUI" in window && window.BrowserUI.goToURI && !functionHooks.has(window))
+      {
+        // Handle new URLs being entered
+        let unhook = hook(window.BrowserUI, "goToURI", function(url)
+        {
+          url = url || this._edit.value;
+
+          let correction = corrector(window, url);
+          if (correction)
+            url = correction;
+
+          return [url];
+        });
+        functionHooks.set(window, unhook);
+      }
+    };
+
+    exports.openInfobar = function(window, id, message, buttons, persistence)
+    {
+      if ("getNotificationBox" in window)
+      {
+        let infobar = window.getNotificationBox();
+        let notification = infobar.getNotificationWithValue(id);
+
+        if (notification)
+        {
+          infobar.removeNotification(notification);
+        }
+
+        notification = infobar.appendNotification(
+          message,
+          id,
+          "chrome://" + addonName + "/skin/icon16.png",
+          infobar.PRIORITY_INFO_HIGH,
+          buttons
+        );
+        notification.persistence = persistence;
+      }
+    };
+
+    exports.loadURI = function(window, uri)
+    {
+      if ("BrowserUI" in window && "goToURI" in window.BrowserUI)
+      {
+        window.BrowserUI.goToURI(uri);
+      }
+    };
+
+    break;
+  }
+  case "fennec2":
+  {
+    // Native Fennec
+    exports.isKnownWindow = function(window) window.document.documentElement.getAttribute("windowtype") == "navigator:browser";
+
+    exports.getURLBar = function(window) null;
+
+    exports.getBrowser = function(window) null;
+
+    exports.applyToWindow = function(window, corrector)
+    {
+      if ("BrowserApp" in window && window.BrowserApp.observe && !functionHooks.has(window))
+      {
+        let innerUnhook = null;
+        function cleanup()
+        {
+          if (innerUnhook)
+            innerUnhook();
+
+          innerUnhook = null;
+        }
+
+        let unhook = hook(window.BrowserApp, "observe", function(subject, topic, data)
+        {
+          // Huge hack: we replace addTab/loadURI when the observer is
+          // triggered. This seems to be the only way to know that the calls
+          // originate from user input.
+          let method = null;
+          if (topic == "Tab:Add")
+            method = "addTab";
+          else if (topic == "Tab:Load")
+            method = "loadURI";
+
+          if (method)
+          {
+            innerUnhook = hook(this, method, function()
+            {
+              let params = Array.prototype.slice.apply(arguments);
+              let correction = corrector(window, params[0]);
+              if (correction)
+                params[0] = correction;
+              return params;
+            });
+          }
+        }, cleanup);
+        functionHooks.set(window, unhook);
+      }
+    };
+
+    exports.openInfobar = function(window, id, message, buttons, persistence)
+    {
+      if ("BrowserApp" in window && "selectedTab" in window.BrowserApp)
+      {
+        window.NativeWindow.doorhanger.show(message, id, buttons, window.BrowserApp.selectedTab.id,
+          {
+            persistence: persistence
+          }
+        );
+      }
+    };
+
+    exports.loadURI = function(window, uri)
+    {
+      if ("BrowserApp" in window && "loadURI" in window.BrowserApp)
+        window.BrowserApp.loadURI(uri);
+    };
+
+    break;
+  }
+  default:
+  {
+    exports.isKnownWindow = function(window) false;
+    break;
+  }
+}