Mercurial > my-ubiquity-commands
annotate random-stuff/random-stuff.js @ 22:ecd868a32247
better error logging, streamlined example
| author | Atul Varma <varmaa@toolness.com> |
|---|---|
| date | Thu, 07 May 2009 15:42:53 -0700 |
| parents | e82bff1ef296 |
| children |
| rev | line source |
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| 20 | 1 const BG_PROPS = ["backgroundImage", |
| 2 "backgroundPosition", | |
| 3 "backgroundRepeat", | |
| 4 "backgroundColor", | |
| 5 "backgroundAttachment"]; | |
| 6 | |
| 7 function copyBackground(fromElement, toElement) { | |
| 8 var window = fromElement.ownerDocument.defaultView; | |
| 9 var style = window.getComputedStyle(fromElement, null); | |
| 10 BG_PROPS.forEach( | |
| 11 function(name) { | |
| 12 toElement.style[name] = style[name]; | |
| 13 }); | |
| 14 } | |
| 15 | |
| 16 function evalFunctionsIntoWindow(functions, window) { | |
| 17 var sandbox = Components.utils.Sandbox(window); | |
| 18 var codeLines = []; | |
| 19 | |
| 20 for (name in functions) | |
| 21 if (typeof(functions[name]) == "function") | |
| 22 codeLines.push("window." + name + " = " + | |
| 23 functions[name].toString() + ";"); | |
| 24 | |
| 25 sandbox.window = window.wrappedJSObject; | |
| 26 | |
| 27 Components.utils.evalInSandbox(codeLines.join('\n'), sandbox); | |
| 28 } | |
| 29 | |
| 30 function importFunctionsIntoWindow(functions, window) { | |
| 31 var sandbox = Components.utils.Sandbox(window); | |
| 32 var codeLines = []; | |
| 33 | |
| 34 for (name in functions) | |
| 35 if (typeof(functions[name]) == "function") { | |
| 36 codeLines.push("window." + name + " = " + name + ";"); | |
| 37 sandbox.importFunction(functions[name]); | |
| 38 } | |
| 39 | |
| 40 sandbox.window = window.wrappedJSObject; | |
| 41 Components.utils.evalInSandbox(codeLines.join('\n'), sandbox); | |
| 42 } | |
| 43 | |
| 44 function injectPanelWindowFunctions(iframe) { | |
| 45 var functions = { | |
| 46 close: function close() { | |
| 47 iframe.parentNode.removeChild(iframe); | |
| 48 } | |
| 49 }; | |
| 50 | |
| 51 importFunctionsIntoWindow(functions, iframe.contentWindow); | |
| 52 } | |
| 53 | |
| 54 function onPanelLoad(evt) { | |
| 55 if (evt.originalTarget.nodeName == "#document") { | |
| 56 var iframe = this; | |
| 57 | |
| 58 iframe.removeEventListener("DOMContentLoaded", onPanelLoad, true); | |
| 59 injectPanelWindowFunctions(iframe); | |
| 60 copyBackground(this.parentNode, iframe.contentDocument.body); | |
| 61 } | |
| 62 } | |
| 63 | |
| 64 function addStatusBarPanel(window, url, width) { | |
| 65 var document = window.document; | |
| 66 var statusBar = document.getElementById("status-bar"); | |
| 67 var iframe = document.createElement("iframe"); | |
| 68 iframe.setAttribute("type", "content"); | |
| 69 iframe.setAttribute("src", url); | |
| 70 iframe.setAttribute("width", width); | |
| 71 iframe.setAttribute("height", statusBar.boxObject.height); | |
| 72 iframe.style.overflow = "hidden"; | |
| 73 iframe.addEventListener("DOMContentLoaded", onPanelLoad, true); | |
| 74 statusBar.appendChild(iframe); | |
| 75 return iframe; | |
| 76 } | |
| 77 | |
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78 function logError(element) { |
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79 var window = element.ownerDocument.defaultView; |
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80 var console = window.wrappedJSObject.console; |
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81 if (console) |
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82 console.error.apply(console, arguments); |
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83 else { |
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84 var items = ["<" + element.nodeName.toLowerCase() + ">"]; |
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85 for (var i = 1; i < arguments.length; i++) |
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86 items.push(arguments[i].toString()); |
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87 Components.utils.reportError(items.join(" ")); |
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88 } |
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89 } |
| 20 | 90 |
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91 function absolutifyUrl(document, url) { |
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92 var anchor = document.createElement("a"); |
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93 anchor.setAttribute("href", url); |
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94 document.body.appendChild(anchor); |
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95 var absolute = anchor.href; |
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96 document.body.removeChild(anchor); |
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97 return absolute; |
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98 } |
| 20 | 99 |
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100 function pageLoad_inject_sidebar_functions(document) { |
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101 if (document.body && |
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102 document.body.firstChild && |
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103 document.body.firstChild.nodeName == "FEATURE") { |
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104 var window = document.defaultView; |
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105 var chromeWindow = window.QueryInterface(Ci.nsIInterfaceRequestor) |
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106 .getInterface(Ci.nsIWebNavigation) |
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107 .QueryInterface(Ci.nsIDocShellTreeItem) |
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108 .rootTreeItem |
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109 .QueryInterface(Ci.nsIInterfaceRequestor) |
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110 .getInterface(Ci.nsIDOMWindow); |
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111 var widgets = document.getElementsByTagName("widget"); |
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112 for (var i = 0; i < widgets.length; i++) { |
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113 var widget = widgets[i]; |
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114 var location = widget.getAttribute("location"); |
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115 if (location == "status-bar") { |
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116 var href = widget.getAttribute("href"); |
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117 if (typeof(href) == "string") { |
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118 href = absolutifyUrl(document, href); |
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119 var width = widget.getAttribute("width"); |
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120 if (width && width.match(/^[0-9]+$/)) { |
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121 var panelIframe = addStatusBarPanel(chromeWindow, href, width); |
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122 window.addEventListener( |
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123 "unload", |
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124 function() { panelIframe.parentNode.removeChild(panelIframe); }, |
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125 true |
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126 ); |
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127 } else |
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128 logError(widget, "must specify width as integer"); |
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129 } else |
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130 logError(widget, "must specify href"); |
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131 } else |
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132 logError(widget, "has unknown location", location); |
| 20 | 133 } |
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134 } |
| 20 | 135 } |