1 | /*
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2 | * file: Debug.js
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3 | *
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4 | * @BEGINLICENSE
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5 | * Copyright 2010 Brook Novak (email : [email protected])
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6 | * This program is free software; you can redistribute it and/or modify
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7 | * it under the terms of the GNU General Public License as published by
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8 | * the Free Software Foundation; either version 2 of the License, or
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9 | * (at your option) any later version.
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | * You should have received a copy of the GNU General Public License
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15 | * along with this program; if not, write to the Free Software
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16 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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17 | * @ENDLICENSE
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18 | */
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19 | /**
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20 | * @namespace The debug namespace will be removed in release builds.
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21 | */
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22 | debug = {};
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23 |
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24 | /**
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25 | * Asserts a condition. If a condition fails a alert box shows and an exception is thrown.
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26 | *
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27 | * @param {Boolean} cond A condition
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28 | *
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29 | * @param {String} msg An optional message
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30 | *
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31 | * @throws {Error} if a condition fails
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32 | */
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33 | debug.assert = function(cond, msg) {
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34 |
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35 | try {
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36 | if (!cond) throw new Error("Assertion failed" + (msg ? ": " + msg : ""));
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37 | } catch (e) {
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38 |
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39 | var fullMsg = e.message + (e.stack ? "\nstack:\n" + e.stack : "");
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40 |
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41 | alert(fullMsg);
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42 |
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43 | throw e;
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44 | }
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45 | }
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46 |
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47 | debug.close = function(){
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48 |
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49 | debug.stop = true;
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50 |
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51 | if (typeof _debugConsole != "undefined" && _debugConsole) {
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52 |
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53 | _debugConsole.parentNode.removeChild(_debugConsole);
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54 |
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55 | _debugConsole = null;
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56 |
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57 | }
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58 | }
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59 |
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60 | debug.stop = false;
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61 |
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62 | /**
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63 | * Prints a message to a debug console.
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64 | *
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65 | * @param {String} msg A message to print.
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66 | */
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67 | debug.print = function(msg){
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68 |
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69 | if (debug.stop)
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70 | return;
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71 |
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72 | if (window.console && console.log) {
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73 | console.log(msg);
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74 | } else if (window.opera && window.opera.postError){
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75 | window.opera.postError(msg);
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76 | } else {
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77 |
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78 | // Setup debug console
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79 | if (typeof _debugConsole == "undefined" || !_debugConsole) {
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80 |
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81 | _debugConsole = document.createElement("div");
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82 | _debugConsole.style.backgroundColor = "#444444";
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83 | _debugConsole.style.position = "fixed";
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84 | _debugConsole.style.border = "2px solid #000000";
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85 | _debugConsole.style.width = "320px";
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86 | _debugConsole.style.height = "174px";
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87 | _debugConsole.style.zIndex = "9999";
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88 | _debugConsole.style.top = "0";
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89 | _debugConsole.style.left = "0";
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90 |
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91 | _debugConsole.innerHTML = '<div style="width:320px; color:white; font-weight:bold; font-family:arial,sans; text-align:center; font-size:14px;"><div style="float:right;border: 1px dashed black; color:black; background-color:#66D390; padding:4px; cursor:pointer;" onclick="debug.close();">close</div>~Seaweed~ Debug Console</div>';
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92 |
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93 | _debugOutput = document.createElement("div");
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94 | _debugOutput.style.backgroundColor = "white";
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95 | _debugOutput.style.overflow = "scroll";
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96 | _debugOutput.style.width = _debugConsole.style.width;
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97 | _debugOutput.style.height = "140px";
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98 |
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99 | _debugConsole.appendChild(_debugOutput);
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100 |
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101 | }
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102 |
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103 | if (document.body && _debugConsole && _debugConsole.parentNode != document.body)
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104 | document.body.appendChild(_debugConsole);
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105 |
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106 | _debugOutput.innerHTML += msg.replace(/\n/g,"<br/>");
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107 | var st = _debugOutput.scrollHeight - _debugOutput.clientHeight;
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108 | if (st < 0) st = 0;
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109 | _debugOutput.scrollTop = st;
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110 |
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111 | }
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112 | }
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113 |
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114 | /**
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115 | * Prints a message to a debug console with a new line
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116 | *
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117 | * @param {String} msg A message to print.
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118 | */
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119 | debug.println = function(msg){
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120 | debug.print(msg + "\n");
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121 | };
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122 |
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123 | /**
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124 | * Prints out a TODO message and it's stack location
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125 | * @param {String} msg An optional todo message
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126 | */
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127 | debug.todo = function(msg) {
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128 | try {
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129 | throw new Error();
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130 | } catch (e) {
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131 | var fullMsg = "TODO: " + (msg ? msg : "") + (e.stack ? "\nAt" + e.stack : + "");
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132 | debug.println(fullMsg);
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133 | }
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134 | };
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135 |
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136 |
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