Issue 4577 - Remove Safari support

safari/ext/background.js

Index: safari/ext/background.js
diff --git a/safari/ext/background.js b/safari/ext/background.js
deleted file mode 100644
index 152ff2e1b467e0505b566ff8255051cc50d982ab..0000000000000000000000000000000000000000
--- a/safari/ext/background.js
+++ /dev/null
@@ -1,606 +0,0 @@
-/*
- * 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()
-{
-  /* Context menus */
-
-  var contextMenuItems = new ext.PageMap();
-  var lastContextMenuTab;
-
-  var ContextMenus = function(page)
-  {
-    this._page = page;
-  };
-  ContextMenus.prototype = {
-    create: function(item)
-    {
-      var items = contextMenuItems.get(this._page);
-      if (!items)
-        contextMenuItems.set(this._page, items = []);
-
-      items.push(item);
-    },
-    remove: function(item)
-    {
-      let items = contextMenuItems.get(this._page);
-      if (items)
-      {
-        let index = items.indexOf(item);
-        if (index != -1)
-          items.splice(index, 1);
-      }
-    }
-  };
-
-  safari.application.addEventListener("contextmenu", function(event)
-  {
-    lastContextMenuTab = event.target;
-
-    if (!event.userInfo)
-      return;
-
-    var documentId = event.userInfo.documentId;
-    if (!documentId)
-      return;
-
-    var page = pages[event.target._documentLookup[documentId].pageId];
-    var items = contextMenuItems.get(page);
-    if (!items)
-      return;
-
-    var context = event.userInfo.tagName;
-    if (context == "img")
-      context = "image";
-
-    for (var i = 0; i < items.length; i++)
-    {
-      // Supported contexts are: all, audio, image, video
-      var menuItem = items[i];
-      if (menuItem.contexts.indexOf("all") == -1 && menuItem.contexts.indexOf(context) == -1)
-        continue;
-
-      event.contextMenu.appendContextMenuItem(i, menuItem.title);
-    }
-  });
-
-  safari.application.addEventListener("command", function(event)
-  {
-    var documentId = event.userInfo.documentId;
-    var page = pages[lastContextMenuTab._documentLookup[documentId].pageId];
-    var items = contextMenuItems.get(page);
-
-    items[event.command].onclick(page);
-  });
-
-
-  /* Browser actions */
-
-  var toolbarItemProperties = {};
-
-  var getToolbarItemForWindow = function(win)
-  {
-    for (var i = 0; i < safari.extension.toolbarItems.length; i++)
-    {
-      var toolbarItem = safari.extension.toolbarItems[i];
-
-      if (toolbarItem.browserWindow == win)
-        return toolbarItem;
-    }
-
-    return null;
-  };
-
-  var updateToolbarItemForPage = function(page, win) {
-    var toolbarItem = getToolbarItemForWindow(win);
-    if (!toolbarItem)
-      return;
-
-    for (var name in toolbarItemProperties)
-    {
-      var property = toolbarItemProperties[name];
-
-      if (page && property.pages.has(page))
-        toolbarItem[name] = property.pages.get(page);
-      else
-        toolbarItem[name] = property.global;
-    }
-  };
-
-  var BrowserAction = function(page)
-  {
-    this._page = page;
-  };
-  BrowserAction.prototype = {
-    _set: function(name, value)
-    {
-      var toolbarItem = getToolbarItemForWindow(this._page._tab.browserWindow);
-      if (!toolbarItem)
-        return;
-
-      var property = toolbarItemProperties[name];
-      if (!property)
-        property = toolbarItemProperties[name] = {
-          pages: new ext.PageMap(),
-          global: toolbarItem[name]
-        };
-
-      property.pages.set(this._page, value);
-
-      if (isPageActive(this._page))
-        toolbarItem[name] = value;
-    },
-    setIcon: function(path)
-    {
-      this._set("image", safari.extension.baseURI + path.replace("$size", "16"));
-    },
-    setBadge: function(badge)
-    {
-      if (!badge)
-        this._set("badge", 0);
-      else if ("number" in badge)
-        this._set("badge", badge.number);
-    }
-  };
-
-  safari.application.addEventListener("activate", function(event)
-  {
-    // this event is also dispatched on windows that got focused. But we
-    // are only interested in tabs, which became active in their window.
-    if (!(event.target instanceof SafariBrowserTab))
-      return;
-
-    let visiblePage = event.target._visiblePage;
-    if (visiblePage)
-      ext.pages.onActivated._dispatch(visiblePage);
-
-    // update the toolbar item for the page visible in the tab that just
-    // became active. If we can't find that page (e.g. when a page was
-    // opened in a new tab, and our content script didn't run yet), the
-    // toolbar item of the window, is reset to its intial configuration.
-    updateToolbarItemForPage(visiblePage, event.target.browserWindow);
-  }, true);
-
-
-  /* Pages */
-
-  var pages = Object.create(null);
-  var pageCounter = 0;
-
-  var Page = function(id, tab, url)
-  {
-    this.id = id;
-    this._tab = tab;
-    this._frames = [{url: new URL(url), parent: null}];
-
-    if (tab.page)
-      this._messageProxy = new ext._MessageProxy(tab.page);
-    else
-      // while the new tab page is shown on Safari 7, the 'page' property
-      // of the tab is undefined, and we can't send messages to that page
-      this._messageProxy = {
-        handleRequest: function() {},
-        handleResponse: function() {},
-        sendMessage: function() {}
-      };
-
-    this.browserAction = new BrowserAction(this);
-    this.contextMenus = new ContextMenus(this);
-  };
-  Page.prototype = {
-    get url()
-    {
-      return this._frames[0].url;
-    },
-    sendMessage: function(message, responseCallback)
-    {
-      var documentIds = [];
-      for (var documentId in this._tab._documentLookup)
-        if (this._tab._documentLookup[documentId].pageId == this.id)
-          documentIds.push(documentId);
-
-      this._messageProxy.sendMessage(message, responseCallback,
-                                     {targetDocuments: documentIds});
-    }
-  };
-
-  ext.getPage = function(id)
-  {
-    return pages[id];
-  };
-
-  var isPageActive = function(page)
-  {
-    var tab = page._tab;
-    var win = tab.browserWindow;
-    return win && tab == win.activeTab && page == tab._visiblePage;
-  };
-
-  var forgetPage = function(id)
-  {
-    ext.pages.onRemoved._dispatch(id);
-
-    ext._removeFromAllPageMaps(id);
-
-    var tab = pages[id]._tab;
-
-    for (var documentId in tab._documentLookup)
-    {
-      if (tab._documentLookup[documentId].pageId == id)
-        delete tab._documentLookup[documentId];
-    }
-
-    delete tab._pages[id];
-    delete pages[id];
-  };
-
-  var replacePage = function(page)
-  {
-    var tab = page._tab;
-    tab._visiblePage = page;
-
-    for (var id in tab._pages)
-    {
-      if (id != page.id)
-        forgetPage(id);
-    }
-
-    if (isPageActive(page))
-      updateToolbarItemForPage(page, tab.browserWindow);
-  };
-
-  var addPage = function(tab, url, prerendered)
-  {
-    var pageId = ++pageCounter;
-
-    if (!('_pages' in tab))
-      tab._pages = Object.create(null);
-
-    if (!('_documentLookup' in tab))
-      tab._documentLookup = Object.create(null);
-
-    var page = new Page(pageId, tab, url);
-    pages[pageId] = tab._pages[pageId] = page;
-
-    // When a new page is shown, forget the previous page associated
-    // with its tab, and reset the toolbar item if necessary.
-    // Note that it wouldn't be sufficient to do that when the old
-    // page is unloading, because Safari dispatches window.onunload
-    // only when reloading the page or following links, but not when
-    // you enter a new URL in the address bar.
-    if (!prerendered)
-      replacePage(page);
-
-    return pageId;
-  };
-
-  ext.pages = {
-    open: function(url, callback)
-    {
-      var tab = safari.application.activeBrowserWindow.openTab();
-      tab.url = url;
-
-      if (callback)
-      {
-        var onNavigate = function(event)
-        {
-          if (event.target == tab)
-          {
-            safari.application.removeEventListener(onNavigate);
-            callback(tab._visiblePage);
-          }
-        };
-
-        safari.application.addEventListener("navigate", onNavigate);
-      }
-    },
-    query: function(info, callback)
-    {
-      var matchedPages = [];
-
-      for (var id in pages)
-      {
-        var page = pages[id];
-        var win = page._tab.browserWindow;
-
-        if ("active" in info && info.active != isPageActive(page))
-          continue;
-        if ("lastFocusedWindow" in info && info.lastFocusedWindow != (win == safari.application.activeBrowserWindow))
-          continue;
-
-        matchedPages.push(page);
-      };
-
-      callback(matchedPages);
-    },
-    onLoading: new ext._EventTarget(),
-    onActivated: new ext._EventTarget(),
-    onRemoved: new ext._EventTarget()
-  };
-
-  safari.application.addEventListener("close", function(event)
-  {
-    // this event is dispatched on closing windows and tabs. However when a
-    // window is closed, it is first dispatched on each tab in the window and
-    // then on the window itself. But we are only interested in closed tabs.
-    if (!(event.target instanceof SafariBrowserTab))
-      return;
-
-    // when a tab is closed, forget the previous page associated with that
-    // tab. Note that it wouldn't be sufficient do that when the old page
-    // is unloading, because Safari dispatches window.onunload only when
-    // reloading the page or following links, but not when closing the tab.
-    for (var id in event.target._pages)
-      forgetPage(id);
-  }, true);
-
-  // We generally rely on content scripts to report new pages,
-  // since Safari's extension API doesn't consider pre-rendered
-  // pages. However, when the extension initializes we have to
-  // use  Safari's extension API to detect existing tabs.
-  safari.application.browserWindows.forEach(function(win)
-  {
-    for (var i = 0; i < win.tabs.length; i++)
-    {
-      var tab = win.tabs[i];
-      var url = tab.url;
-
-      // For the new tab page the url property is undefined.
-      if (url)
-      {
-        var pageId = addPage(tab, url, false);
-        tab.page.dispatchMessage("requestDocumentId", {pageId: pageId});
-      }
-    }
-  });
-
-
-  /* Web requests */
-
-  ext.webRequest = {
-    onBeforeRequest: new ext._EventTarget(),
-    handlerBehaviorChanged: function()
-    {
-    },
-    getIndistinguishableTypes: function()
-    {
-      return [];
-    }
-  };
-
-  /* Message processing */
-
-  var dispatchedLegacyAPISupportMessage = false;
-  safari.application.addEventListener("message", function(event)
-  {
-    var tab = event.target;
-    var message = event.message;
-    var sender;
-    if ("documentId" in message && "_documentLookup" in tab)
-    {
-      sender = tab._documentLookup[message.documentId];
-      if (sender)
-      {
-        sender.page = pages[sender.pageId];
-        sender.frame = sender.page._frames[sender.frameId];
-      }
-    }
-
-    switch (event.name)
-    {
-      case "canLoad":
-        switch (message.category)
-        {
-          case "webRequest":
-            var results = ext.webRequest.onBeforeRequest._dispatch(
-              new URL(message.url, sender.frame.url),
-              message.type, sender.page, sender.frame
-            );
-
-            event.message = (results.indexOf(false) == -1);
-            break;
-          case "request":
-            var response = null;
-            var sendResponse = function(message) { response = message; };
-
-            ext.onMessage._dispatch(message.payload, sender, sendResponse);
-
-            event.message = response;
-            break;
-        }
-        break;
-      case "request":
-        sender.page._messageProxy.handleRequest(message, sender);
-        break;
-      case "response":
-        // All documents within a page have the same pageId and that's all we
-        // care about here.
-        var pageId = tab._documentLookup[message.targetDocuments[0]].pageId;
-        pages[pageId]._messageProxy.handleResponse(message);
-        break;
-      case "replaced":
-        // when a prerendered page is shown, forget the previous page
-        // associated with its tab, and reset the toolbar item if necessary.
-        // Note that it wouldn't be sufficient to do that when the old
-        // page is unloading, because Safari dispatches window.onunload
-        // only when reloading the page or following links, but not when
-        // the current page is replaced with a prerendered page.
-        replacePage(sender.page);
-        break;
-      case "loading":
-        var pageId;
-        var frameId;
-        var documentId = message.documentId;
-
-        if (message.isTopLevel)
-        {
-          pageId = addPage(tab, message.url, message.isPrerendered);
-          frameId = 0;
-
-          ext.pages.onLoading._dispatch(pages[pageId]);
-        }
-        else
-        {
-          var page;
-          var parentFrame;
-
-          var lastPageId;
-          var lastPage;
-          var lastPageTopLevelFrame;
-
-          // find the parent frame and its page for this sub frame,
-          // by matching its referrer with the URL of frames previously
-          // loaded in the same tab. If there is more than one match,
-          // the most recent loaded page and frame is preferred.
-          for (var curPageId in tab._pages)
-          {
-            var curPage = pages[curPageId];
-
-            for (var i = 0; i < curPage._frames.length; i++)
-            {
-              var curFrame = curPage._frames[i];
-
-              if (curFrame.url.href == message.referrer)
-              {
-                pageId = curPageId;
-                page = curPage;
-                parentFrame = curFrame;
-              }
-
-              if (i == 0)
-              {
-                lastPageId = curPageId;
-                lastPage = curPage;
-                lastPageTopLevelFrame = curFrame;
-              }
-            }
-          }
-
-          // if we can't find the parent frame and its page, fall back to
-          // the page most recently loaded in the tab and its top level frame
-          if (!page)
-          {
-            pageId = lastPageId;
-            page = lastPage;
-            parentFrame = lastPageTopLevelFrame;
-          }
-
-          frameId = page._frames.length;
-          page._frames.push({url: new URL(message.url), parent: parentFrame});
-        }
-
-        tab._documentLookup[documentId] = {pageId: pageId, frameId: frameId};
-
-        if (!dispatchedLegacyAPISupportMessage)
-        {
-          ext.onMessage._dispatch({
-            type: "safari.legacyAPISupported",
-            legacyAPISupported: message.legacyAPISupported
-          });
-          dispatchedLegacyAPISupportMessage = true;
-        }
-        break;
-      case "documentId":
-        tab._documentLookup[message.documentId] = {
-          pageId: message.pageId, frameId: 0
-        };
-        break;
-    }
-  });
-
-
-  /* Storage */
-
-  ext.storage = {
-    get: function(keys, callback)
-    {
-      var items = {};
-      var settings = safari.extension.settings;
-
-      for (var i = 0; i < keys.length; i++)
-      {
-        var key = keys[i];
-        if (key in settings)
-          items[key] = settings[key];
-      }
-
-      setTimeout(callback, 0, items);
-    },
-    set: function(key, value, callback)
-    {
-      safari.extension.settings[key] = value;
-
-      if (callback)
-        setTimeout(callback, 0);
-    },
-    remove: function(key, callback)
-    {
-      delete safari.extension.settings[key];
-
-      if (callback)
-        setTimeout(callback, 0);
-    },
-    onChanged: new ext._EventTarget()
-  };
-
-  safari.extension.settings.addEventListener("change", function(event)
-  {
-    var changes = {};
-    var change = changes[event.key] = {};
-
-    if (event.oldValue != null)
-      change.oldValue = event.oldValue;
-    if (event.newValue != null)
-      change.newValue = event.newValue;
-
-    ext.storage.onChanged._dispatch(changes);
-  });
-
-
-  /* Options */
-
-  ext.showOptions = function(callback)
-  {
-    var optionsUrl = safari.extension.baseURI + "options.html";
-
-    for (var id in pages)
-    {
-      var page = pages[id];
-      var tab = page._tab;
-
-      if (page.url.href == optionsUrl && tab.browserWindow == safari.application.activeBrowserWindow)
-      {
-        tab.activate();
-        if (callback)
-          callback(page);
-        return;
-      }
-    }
-
-    ext.pages.open(optionsUrl, callback);
-  };
-
-  /* Windows */
-  ext.windows = {
-    // Safari doesn't provide as rich a windows API as Chrome does, so instead
-    // of chrome.windows.create we have to fall back to just opening a new tab.
-    create: function(createData, callback)
-    {
-      ext.pages.open(createData.url, callback);
-    }
-  };
-})();