| 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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