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1 /* This Source Code Form is subject to the terms of the Mozilla Public |
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2 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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4 |
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5 let Ci = Components.interfaces; |
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6 let Cc = Components.classes; |
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7 |
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8 dump("### ConsoleAPIObserver.js loaded\n"); |
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9 |
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10 /* |
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11 * ConsoleAPIObserver |
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12 * |
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13 */ |
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14 |
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15 var ConsoleAPIObserver = { |
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16 init: function init() { |
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17 addMessageListener("Browser:TabOpen", this); |
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18 addMessageListener("Browser:TabClose", this); |
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19 }, |
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20 |
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21 receiveMessage: function receiveMessage(aMessage) { |
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22 let json = aMessage.json; |
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23 switch (aMessage.name) { |
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24 case "Browser:TabOpen": |
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25 Services.obs.addObserver(this, "console-api-log-event", false); |
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26 break; |
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27 case "Browser:TabClose": |
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28 Services.obs.removeObserver(this, "console-api-log-event"); |
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29 break; |
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30 } |
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31 }, |
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32 |
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33 observe: function observe(aMessage, aTopic, aData) { |
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34 let contentWindowId = content.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils).outerWindowID; |
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35 aMessage = aMessage.wrappedJSObject; |
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36 if (aMessage.ID != contentWindowId) |
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37 return; |
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38 |
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39 let mappedArguments = Array.map(aMessage.arguments, this.formatResult, this); |
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40 let joinedArguments = Array.join(mappedArguments, " "); |
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41 |
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42 if (aMessage.level == "error" || aMessage.level == "warn") { |
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43 let flag = (aMessage.level == "error" ? Ci.nsIScriptError.errorFlag : Ci.nsIScriptError.warningFlag); |
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44 let consoleMsg = Cc["@mozilla.org/scripterror;1"].createInstance(Ci.nsIScriptError); |
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45 consoleMsg.init(joinedArguments, null, null, 0, 0, flag, "content javascript"); |
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46 Services.console.logMessage(consoleMsg); |
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47 } else if (aMessage.level == "trace") { |
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48 let bundle = Services.strings.createBundle("chrome://global/locale/headsUpDisplay.properties"); |
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49 let args = aMessage.arguments; |
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50 let filename = this.abbreviateSourceURL(args[0].filename); |
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51 let functionName = args[0].functionName || bundle.GetStringFromName("stacktrace.anonymousFunction"); |
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52 let lineNumber = args[0].lineNumber; |
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53 |
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54 let body = bundle.formatStringFromName("stacktrace.outputMessage", [filename, functionName, lineNumber], 3); |
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55 body += "\n"; |
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56 args.forEach(function(aFrame) { |
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57 body += aFrame.filename + " :: " + aFrame.functionName + " :: " + aFrame.lineNumber + "\n"; |
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58 }); |
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59 |
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60 Services.console.logStringMessage(body); |
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61 } else { |
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62 Services.console.logStringMessage(joinedArguments); |
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63 } |
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64 }, |
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65 |
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66 getResultType: function getResultType(aResult) { |
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67 let type = aResult === null ? "null" : typeof aResult; |
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68 if (type == "object" && aResult.constructor && aResult.constructor.name) |
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69 type = aResult.constructor.name; |
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70 return type.toLowerCase(); |
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71 }, |
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72 |
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73 formatResult: function formatResult(aResult) { |
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74 let output = ""; |
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75 let type = this.getResultType(aResult); |
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76 switch (type) { |
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77 case "string": |
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78 case "boolean": |
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79 case "date": |
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80 case "error": |
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81 case "number": |
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82 case "regexp": |
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83 output = aResult.toString(); |
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84 break; |
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85 case "null": |
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86 case "undefined": |
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87 output = type; |
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88 break; |
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89 default: |
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90 output = aResult.toString(); |
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91 break; |
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92 } |
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93 |
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94 return output; |
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95 }, |
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96 |
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97 abbreviateSourceURL: function abbreviateSourceURL(aSourceURL) { |
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98 // Remove any query parameters. |
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99 let hookIndex = aSourceURL.indexOf("?"); |
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100 if (hookIndex > -1) |
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101 aSourceURL = aSourceURL.substring(0, hookIndex); |
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102 |
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103 // Remove a trailing "/". |
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104 if (aSourceURL[aSourceURL.length - 1] == "/") |
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105 aSourceURL = aSourceURL.substring(0, aSourceURL.length - 1); |
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106 |
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107 // Remove all but the last path component. |
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108 let slashIndex = aSourceURL.lastIndexOf("/"); |
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109 if (slashIndex > -1) |
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110 aSourceURL = aSourceURL.substring(slashIndex + 1); |
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111 |
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112 return aSourceURL; |
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113 } |
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114 }; |
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115 this.ConsoleAPIObserver = ConsoleAPIObserver; |
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116 |
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117 ConsoleAPIObserver.init(); |
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118 |