1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244

// Chrome to Safari port
// Author: Michael Gundlach (gundlach@gmail.com)
// License: GPLv3 as part of adblockforchrome.googlecode.com
//			or MIT if GPLv3 conflicts with your code's license.
//
// Porting library to make Chrome extensions work in Safari.
// To use: Add as the first script loaded in your Options page,
// your background page, your Chrome manifest.json, and your
// Safari Info.plist (created by the Extensions Builder).
//
// Then you can use chrome.* APIs as usual, and check the SAFARI
// global boolean variable to see if you're in Safari or Chrome
// for doing browser-specific stuff.  The safari.* APIs will 
// still be available in Safari, and the chrome.* APIs will be
// unchanged in Chrome.

try {
  chrome.extension.getURL; // verify 'extension' property exists
  SAFARI = false;
  CHROME = true;
}
catch (e) {
  SAFARI = true;
  CHROME = false;
}

if (SAFARI) {
  // Replace the 'chrome' object with a Safari adapter.
  chrome = {
	// Track tabs that make requests to the global page, assigning them
	// IDs so we can recognize them later.
	__getTabId: (function() {
	  // Tab objects are destroyed when no one has a reference to them,
	  // so we keep a list of them, lest our IDs get lost.
	  var tabs = [];
	  var lastAssignedTabId = 0;
	  var theFunction = function(tab) {
		// Clean up closed tabs, to avoid memory bloat.
		tabs = tabs.filter(function(t) { return t.browserWindow != null; });

		if (tab.id == undefined) {
		  // New tab
		  tab.id = lastAssignedTabId + 1;
		  lastAssignedTabId = tab.id;
		  tabs.push(tab); // save so it isn't garbage collected, losing our ID.
		}
		return tab.id;
	  };
	  return theFunction;
	})(),

	extension: {
	  getURL: function(path) { 
		return safari.extension.baseURI + path;
	  },

	  sendRequest: (function() {
		// The function we'll return at the end of all this
		function theFunction(data, callback) {
		  var callbackToken = "callback" + Math.random();

		  // Listen for a response for our specific request token.
		  addOneTimeResponseListener(callbackToken, callback);

		  safari.self.tab.dispatchMessage("request", {
			data: data,
			callbackToken: callbackToken
		  });
		}

		// Make a listener that, when it hears sendResponse for the given 
		// callbackToken, calls callback(resultData) and deregisters the 
		// listener.
		function addOneTimeResponseListener(callbackToken, callback) {

		  var responseHandler = function(messageEvent) {
			if (messageEvent.name != "response")
			  return;
			if (messageEvent.message.callbackToken != callbackToken)
			  return;

			callback(messageEvent.message.data);
			// Change to calling in 0-ms setTimeout, as Safari team thinks
			// this will work around their crashing until they can release
			// a fix.
			// safari.self.removeEventListener("message", responseHandler, false);
			window.setTimeout(function() {
			  safari.self.removeEventListener("message", responseHandler, false);
			}, 0);
		  };

		  safari.self.addEventListener("message", responseHandler, false);
		}

		return theFunction;
	  })(),

	  onRequest: {
		addListener: function(handler) {
		  safari.application.addEventListener("message", function(messageEvent) {
			// Only listen for "sendRequest" messages
			if (messageEvent.name != "request")
			  return;

			var request = messageEvent.message.data;
			var id = chrome.__getTabId(messageEvent.target);

			var sender = { tab: { id: id } };
			var sendResponse = function(dataToSend) {
			  var responseMessage = { callbackToken: messageEvent.message.callbackToken, data: dataToSend };
			  messageEvent.target.page.dispatchMessage("response", responseMessage);
			}
			handler(request, sender, sendResponse);
		  }, false);
		},
	  },

	  connect: function(port_data) {
		var portUuid = "portUuid" + Math.random();
		safari.self.tab.dispatchMessage("port-create", {name: port_data.name, uuid: portUuid});

		var newPort = {
		  name: port_data.name,
		  onMessage: { 
			addListener: function(listener) {
			  safari.self.addEventListener("message", function(messageEvent) {
				// If the message was a port.postMessage to our port, notify our listener.
				if (messageEvent.name != "port-postMessage") 
				  return;
				if (messageEvent.message.portUuid != portUuid)
				  return;
				listener(messageEvent.message.data);
			  });
			} 
		  }
		};
		return newPort;
	  },

	  onConnect: {
		addListener: function(handler) {
		  // Listen for port creations
		  safari.application.addEventListener("message", function(messageEvent) {
			if (messageEvent.name != "port-create")
			  return;

			var portName = messageEvent.message.name;
			var portUuid = messageEvent.message.uuid;

			var id = chrome.__getTabId(messageEvent.target);

			var newPort = {
			  name: portName,
			  sender: { tab: { id: id } },
			  onDisconnect: { 
				addListener: function() { 
				  console.log("CHROME PORT LIBRARY: chrome.extension.onConnect.addListener: port.onDisconnect is not implemented, so I'm doing nothing.");
				}
			  },
			  postMessage: function(data) {
				if (! messageEvent.target.page) {
				  console.log("Oops, this port has already disappeared -- cancelling.");
				  return;
				}
				messageEvent.target.page.dispatchMessage("port-postMessage", { portUuid: portUuid, data: data });
			  }
			};

			// Inform the onNewPort caller about the new port
			handler(newPort);
		  });
		}
	  },

	  onRequestExternal: {
		addListener: function() {
		  console.log("CHROME PORT LIBRARY: onRequestExternal not supported.");
		}
	  }
	}
  };
}else{

	// Create a class for settings objects
	var settingsObj = function(){};
	
	settingsObj.prototype.getItem = function(item){
		if(this[item]){
			return this[item];
		}else{
			return null;
		}
	};
	settingsObj.prototype.setItem = function(item,value){
		return (this[item] = value);
	};
	settingsObj.prototype.removeItem = function(item){
		return (delete this[item]);
	};
	settingsObj.prototype.clear = function(){
		for(var item in this){
			if(this.hasOwnProperty(item)){
				delete this[item];
			}
		}
	};
	
	// Make the settings objects
	if(!localStorage.settings){
		localStorage.settings = new settingsObj();
	}
	if(!localStorage.secureSettings){
		localStorage.secureSettings = new settingsObj();
	}
	
	// Replace the "safari" object with a chrome adapter
	safari = {
		extension: {
			baseURI: chrome.extension.getURL("/");
		},
		self: {
			tab: {
				
			}
		},
		application: {
			
		},
		bars: {
			
		},
		toolbarItems: {
			
		}
	};
	
	// Add the global-HTML-file-only stuff
	if(GLOBAL_HTML_FILE){
		safari.extension = {
			settings: localStorage.settings,
			secureSettings: localStorage.secureSettings
		};
	}
}