Rob Sayre
14 years ago
7 changed files with 176 additions and 13 deletions
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@@ -0,0 +1 @@
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http://oannis.com/DiwanProfile.pdf |
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@@ -0,0 +1,153 @@
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/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- / |
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/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */ |
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// Checking if the typed arrays are supported
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(function() { |
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if (typeof Uint8Array !== "undefined") |
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return; |
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function subarray(start, end) { |
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return this.slice(start, end); |
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} |
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function set_(array, offset) { |
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if (arguments.length < 2) offset = 0; |
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for (var i = 0, n = array.length; i < n; ++i, ++offset) |
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this[offset] = array[i] & 0xFF; |
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} |
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function TypedArray(arg1) { |
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var result; |
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if (typeof arg1 === "number") { |
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result = new Array(arg1); |
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for (var i = 0; i < arg1; ++i) |
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result[i] = 0; |
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} else |
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result = arg1.slice(0); |
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result.subarray = subarray; |
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result.buffer = result; |
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result.byteLength = result.length; |
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result.set = set_; |
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if (typeof arg1 === "object" && arg1.buffer) |
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result.buffer = arg1.buffer; |
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return result; |
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} |
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window.Uint8Array = TypedArray; |
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// we don't need support for set, byteLength for 32-bit array
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// so we can use the TypedArray as well
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window.Uint32Array = TypedArray; |
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window.Int32Array = TypedArray; |
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})(); |
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// Object.create() ?
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(function() { |
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if (typeof Object.create !== "undefined") |
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return; |
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Object.create = function(proto) { |
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var constructor = function() {}; |
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constructor.prototype = proto; |
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return new constructor(); |
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}; |
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})(); |
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// Object.defineProperty() ?
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(function() { |
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if (typeof Object.defineProperty !== "undefined") |
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return; |
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Object.defineProperty = function(obj, name, def) { |
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delete obj[name]; |
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if ("get" in def) |
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obj.__defineGetter__(name, def["get"]); |
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if ("set" in def) |
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obj.__defineSetter__(name, def["set"]); |
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if ("value" in def) { |
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obj.__defineSetter__(name, function(value) { |
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this.__defineGetter__(name, function() { |
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return value; |
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}); |
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return value; |
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}); |
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obj[name] = def.value; |
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} |
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}; |
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})(); |
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// No XMLHttpRequest.response ?
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(function() { |
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var xhrPrototype = XMLHttpRequest.prototype; |
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if ("response" in xhrPrototype || |
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"mozResponseArrayBuffer" in xhrPrototype || |
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"mozResponse" in xhrPrototype || |
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"responseArrayBuffer" in xhrPrototype) |
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return; |
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// IE ?
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if (typeof VBArray !== "undefined") { |
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Object.defineProperty(xhrPrototype, "response", { |
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get: function() { |
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return new Uint8Array( new VBArray(this.responseBody).toArray() ); |
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} |
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}); |
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return; |
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} |
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// other browsers
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function responseTypeSetter() { |
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// will be only called to set "arraybuffer"
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this.overrideMimeType("text/plain; charset=x-user-defined"); |
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} |
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if (typeof xhrPrototype.overrideMimeType === "function") { |
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Object.defineProperty(xhrPrototype, "responseType", { set: responseTypeSetter }); |
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} |
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function responseGetter() { |
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var text = this.responseText; |
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var i, n = text.length; |
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var result = new Uint8Array(n); |
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for (i = 0; i < n; ++i) |
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result[i] = text.charCodeAt(i) & 0xFF; |
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return result; |
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} |
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Object.defineProperty(xhrPrototype, "response", { get: responseGetter }); |
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})(); |
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// window.btoa (base64 encode function) ?
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(function() { |
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if ("btoa" in window) |
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return; |
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var digits = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; |
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window.btoa = function(chars) { |
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var buffer = ""; |
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var i, n; |
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for (i = 0, n = chars.length; i < n; i += 3) { |
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var b1 = chars.charCodeAt(i) & 0xFF; |
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var b2 = chars.charCodeAt(i + 1) & 0xFF; |
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var b3 = chars.charCodeAt(i + 2) & 0xFF; |
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var d1 = b1 >> 2, d2 = ((b1 & 3) << 4) | (b2 >> 4); |
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var d3 = i + 1 < n ? ((b2 & 0xF) << 2) | (b3 >> 6) : 64; |
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var d4 = i + 2 < n ? (b3 & 0x3F) : 64; |
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buffer += digits.charAt(d1) + digits.charAt(d2) + digits.charAt(d3) + digits.charAt(d4); |
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} |
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return buffer; |
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}; |
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})(); |
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// Function.prototype.bind ?
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(function() { |
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if (typeof Function.prototype.bind !== "undefined") |
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return; |
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Function.prototype.bind = function(obj) { |
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var fn = this, headArgs = Array.prototype.slice.call(arguments, 1); |
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var binded = function(tailArgs) { |
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var args = headArgs.concat(tailArgs); |
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return fn.apply(obj, args); |
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}; |
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return binded; |
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}; |
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})(); |
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