author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 27 May 2010 12:49:57 +0300 | |
changeset 29 | 8192e5b5c935 |
permissions | -rw-r--r-- |
29
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// The following identifier turns the IE conditional pre-compilation on. |
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/*@cc_on @*/ |
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/** |
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* @namespace Parent namespace for the api.ovi.com project. |
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*/ |
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if (typeof ovi == 'undefined') { |
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ovi = {}; |
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}; |
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(function (ovi) { |
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// ovi = function() { |
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var that = {}; |
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ovi.description = { |
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proxy_url: window.location.protocol + "//" + window.location.host + "/ovi-api", |
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sourceLocation: "/js", |
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urlSeperator: "/", |
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libFileExtension: ".js", |
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minified: false, |
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sign_method : "method-delegate-oauth", |
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env_path : "/alpha", |
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dispatch_path : "/api", |
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proxy_prefix : "", //useful during dev, so same consumer key can be reused for multiple instances of ovi-api |
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request_timeout : 30, // Network request timeout lapse (in seconds). |
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caller_id : "", //random id used for caller authentication |
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env_device : true // Do not change anything in this line, even the spacing. Else the project won't build properly for SPB. |
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}; |
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// that.description = description; |
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//Ignore console calls, in case it is not imported |
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ovi.console = {init:function(){},log:function(){},error:function(){},debug:function(){},info:function(){}}; |
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//Ignore config calls, in case config.js is not imported |
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ovi.config = {setenv:function(){},setServiceEndPoint:function(){}}; |
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var _loaded = {}; //Mapping from script source URL to status (0 - not loaded, 1 - loaded) |
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var _libMappings = {}; //Mapping from script source URL to libName |
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var _pending_callbacks = []; //Used to delay callbacks, until all dependencies are loaded |
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/** |
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* Method to initialize source URL using location of path from where oviapi.js was loaded |
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* |
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*/ |
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var _initSourceURL = function() { |
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var scripts = document.getElementsByTagName('script'); |
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if (!scripts) return; // TODO Throw an exception instead. |
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var srcFilePattern = new RegExp("/js/ovi/(oviapi|oviapi-min|oviapi_(.+)|oviapi_(.+)-min).js$", "gi"); |
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for(var index = 0; index < scripts.length; index++) { |
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var ssrc = scripts.item(index).src; |
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if (typeof ssrc !== 'undefined') { |
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ssrc = ssrc.replace(/^\s*|\s*$/g,''); // To remove any white spaces. |
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var startIndex = ssrc.search(srcFilePattern); |
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if (startIndex > 0) { |
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// To determine whether the minified version of ovi libraries are used. |
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if (ssrc.indexOf("min") > 0) { |
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ovi.description.minified = true; |
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} |
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// If only relative src can be accessed, then use window.location ro create sourceURL |
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if (ssrc.substr(0,6) !== 'http:/' && ssrc.substr(0,7) !== 'https:/') { |
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var rootdir = window.location.pathname.split('/'); |
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if (rootdir.length > 1) |
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ovi.description.proxy_url = window.location.protocol + "//" + window.location.host + "/" + rootdir[1]; |
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break; |
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} else { |
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ovi.description.proxy_url = ssrc.substring(0, startIndex); |
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break; |
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} |
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} |
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} |
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} |
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}; |
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_initSourceURL(); |
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|
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/** |
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* Get an array of the loaded libs |
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* @param {Integer} Optional param to specify the status of the loaded library. |
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* @return Array of libNames |
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*/ |
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var _getLoadedLibNames = function(status){ |
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var loadedLibs = []; |
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if (typeof status === 'undefined') status = -1; |
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for (var item in _loaded){ |
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if ((status === -1) || (_loaded[item] === status)){ |
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loadedLibs.push(_libMappings[item]); |
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} |
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} |
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return loadedLibs; |
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}; |
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/** |
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* Get an object with loaded lib name as key and load status as value (1 - loaded, 0 - not loaded) |
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* @param {Integer} Optional param to specify the status of the loaded library. |
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* @return Object with libNames as key and load status as value |
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*/ |
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101 |
var _getLoadedLibNamesAsObject = function(status){ |
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|
102 |
var loadedLibs = {}; |
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|
103 |
if (typeof status === 'undefined') status = -1; |
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|
104 |
for (var item in _loaded){ |
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|
105 |
if ((status === -1) || (_loaded[item] === status)){ |
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|
106 |
loadedLibs[_libMappings[item]] = _loaded[item]; |
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107 |
} |
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108 |
} |
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109 |
return loadedLibs; |
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110 |
}; |
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|
111 |
|
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112 |
/** |
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113 |
* Test if script was already loaded |
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114 |
* @param {String} scriptSrcURL source URL of script |
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115 |
* @return {Boolean} |
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116 |
*/ |
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117 |
var _isExistingScript = function(scriptSrcURL){ |
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118 |
for (var item in _loaded){ |
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119 |
if (scriptSrcURL === item){ |
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120 |
return true; |
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121 |
} |
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122 |
} |
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123 |
return false; |
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124 |
}; |
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125 |
|
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126 |
/** |
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127 |
* Method to verify if a library object has already been loaded. In case of packaged/minified |
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128 |
* version of ovi libraries all the libraries would reside in one single JS file. |
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129 |
* |
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130 |
* @param {String} libraryName Name of the library object to check. |
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131 |
* @return {Boolean} Based on whether the check is true/false. |
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132 |
*/ |
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133 |
var _isExistingLib = function(libraryName) { |
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134 |
for (var lib in ovi.libName) { |
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135 |
if (libraryName == lib) { |
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136 |
return true; |
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137 |
} |
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138 |
} |
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139 |
return false; |
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140 |
} |
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|
141 |
|
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142 |
var _determineScriptSrc = function(libName, options){ |
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143 |
var fileName = libName; |
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144 |
var scriptSrcURL = ovi.description.proxy_url; |
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|
145 |
|
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146 |
// This helps while using this on a widget. |
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147 |
if (options != undefined && options.sourceURL != undefined) { |
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148 |
scriptSrcURL = options.sourceURL; |
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149 |
} |
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150 |
|
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151 |
var fileExt = ""; |
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152 |
// If not using slash path, then use ".js" file extension and replace dot with slash. |
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153 |
if(fileName.indexOf('/') == -1){ |
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154 |
fileExt = ovi.description.libFileExtension; |
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155 |
fileName = fileName.replace(/\./g,'/'); |
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156 |
} |
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|
157 |
|
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158 |
var rootDir = ""; |
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159 |
//If ovi package, then use source location as root dir |
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160 |
if (fileName.substr(0,3) === "ovi") |
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161 |
rootDir = ovi.description.sourceLocation; |
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162 |
|
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163 |
scriptSrcURL = scriptSrcURL + rootDir + "/" + fileName |
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164 |
+ ((ovi.description.minified) ? "-min" : "") |
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|
165 |
+ fileExt; |
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|
166 |
return scriptSrcURL; |
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167 |
}; |
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|
168 |
|
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|
169 |
var _loadScript = function(scriptSrcURL, srcLib, options){ |
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170 |
|
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|
171 |
function _loadedcallback(){ |
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|
172 |
|
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|
173 |
//console.log(new Date().getTime()+" Loaded script:"+scriptSrcURL+" "+_getLoadedLibNames(1)); |
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|
174 |
//console.log("not loaded:"+_getLoadedLibNames(0)); |
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|
175 |
|
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176 |
//Mark script as loaded |
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177 |
_loaded[scriptSrcURL] = 1; |
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|
178 |
|
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179 |
//If callback exists, then add to pending callbacks |
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180 |
if (options && options.callback != null) |
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181 |
_pending_callbacks.push(options.callback); |
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|
182 |
|
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183 |
//If 1 or more items are pending, then don't call callbacks |
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184 |
var done = true; |
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185 |
for (var item in _loaded){ |
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|
186 |
if (_loaded[item] === 0){ |
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187 |
done = false; |
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Revision: 201019
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188 |
break; |
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189 |
} |
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190 |
} |
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|
191 |
|
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192 |
//If all libs are loaded, then call callbacks for all includes, if any |
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Revision: 201019
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|
193 |
if (done == true){ |
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Revision: 201019
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194 |
//console.log(new Date().getTime()+" DONE AT LAST\n"); |
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195 |
//Call all pending callbacks |
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196 |
for (var index = 0; index < _pending_callbacks.length; index++){ |
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|
197 |
try{ |
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198 |
_pending_callbacks[index].call(); |
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199 |
}catch(err){ |
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200 |
//console.log("failed to exec callback"); |
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|
201 |
} |
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202 |
} |
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|
203 |
_pending_callbacks = []; //Reset pending callbacks list |
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ovi.onReady(_getLoadedLibNamesAsObject(1)); //call onReady |
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} |
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} |
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|
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// If the library is already loaded (throug packaged/minified source file) then skip the download process. |
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if (!_isExistingLib(srcLib)) { |
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var scriptTag = document.createElement('script'); |
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scriptTag.type = 'text/javascript'; |
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scriptTag.src = scriptSrcURL; |
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|
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if(window.opera){ |
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scriptTag.onload = function(){ |
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scriptTag.onload = null; |
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_loadedcallback(); |
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}; |
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} |
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//From Nicholas C. Zakas (http://www.nczonline.net/blog/2009/06/23/loading-javascript-without-blocking/) |
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else if (scriptTag.readyState){ //IE |
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scriptTag.onreadystatechange = function(){ |
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if (scriptTag.readyState == "loaded" || scriptTag.readyState == "complete"){ |
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scriptTag.onreadystatechange = null; |
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_loadedcallback(); |
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} |
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}; |
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} else { //Others |
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scriptTag.onload = function(){ |
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_loadedcallback(); |
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}; |
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} |
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233 |
|
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var documentHead = document.getElementsByTagName("head")[0]; |
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var newScriptTag = documentHead.appendChild(scriptTag); |
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if (newScriptTag) return true; |
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} else { |
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_loadedcallback(); |
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return true; |
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} |
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return false; |
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}; |
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243 |
|
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/** |
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* ovi.include - Method to dynamically include JS libraries from "api.ovi.com".<br/><br/> |
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* The ovi.onReady(libs) function is triggered once the library and its |
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* dependencies are loaded. See documentation of ovi.onReady. |
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* |
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* @param {String,Array} |
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* libNames Names of one or more libraries to be included, specified as an |
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* array of strings or as a comma separated string. |
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* Library name can be specified in dot notation or as a relative path. <span |
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* style="color:blue">e.g., "ovi.api.people", |
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* "ovi/api/people.1.0.js".</span> External libraries must start |
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* with "lib" <span style="color:blue">e.g., "lib.jquery", |
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* "lib/jquery.json.js".</span> |
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* @param {Object} |
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* options Name/Value object to hold other optional parameters. |
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* @param {Function} |
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* options.callback Function to be called after a library has |
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* been loaded. |
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* |
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* @example |
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* ovi.include("ovi.api.maps"); |
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* ovi.include("ovi.api.people",{callback:function(){callMeBack()}}); |
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* ovi.include("ovi.api.people, ovi.api.share", {callback:function(){callMeBack()}}); |
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* |
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* |
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* |
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* @function |
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* @methodOf ovi |
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*/ |
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ovi.include = function(libNames, options) { |
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var importStatus = true; |
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try { |
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if (libNames != undefined) { |
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if (typeof libNames === 'string') |
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libNames = libNames.split(','); |
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|
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// Determine which scripts (and also libraries) need to be loaded |
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var toLoadScript = []; |
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for (var index = 0; index < libNames.length; index++){ |
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var libName = libNames[index].replace(/^\s*|\s*$/g,''); // Remove any white spaces. |
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|
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// Determine script source URL from libName |
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var scriptSrcURL = _determineScriptSrc(libName, options); |
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if (!_isExistingScript(scriptSrcURL)) { |
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_loaded[scriptSrcURL] = 0; //Mark script as pending |
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_libMappings[scriptSrcURL] = libName; |
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toLoadScript.push(scriptSrcURL); |
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|
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} else { |
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if (options && options.callback) |
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toLoadScript.push(scriptSrcURL); |
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} |
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//console.log("o================o"); |
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} |
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|
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var lstatus; |
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//Load scripts that need to be loaded. Pass optional callback only for last script (since callback should be called only once). |
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for (var index = 0; index < toLoadScript.length; index ++){ |
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if (index == (toLoadScript.length-1)) // if last lib, then pass optional callback |
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lstatus = _loadScript(toLoadScript[index], _libMappings[toLoadScript[index]], options); |
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else |
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lstatus = _loadScript(toLoadScript[index], _libMappings[toLoadScript[index]]); |
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if (!lstatus) importStatus = false; |
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} |
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} |
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} catch (exception) { |
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importStatus = false; |
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} |
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return importStatus; |
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}; |
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// that.include = include; |
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315 |
|
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/** |
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* ovi.onReady - Callback function triggered after calling ovi.include, |
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* once the library and its dependencies are loaded. Developers can override the default |
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* implementation, with their own ovi.onReady function. If successive calls to ovi.include are made, |
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* ovi.onReady may be triggered only once. |
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321 |
* |
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* @param {Object} |
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* libs - library name as key and load status as value (0 - not |
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* loaded, 1 - loaded). Developer must check if the libraries |
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* they need are loaded before using them using the ovi.testIfLoaded function. |
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* |
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* @function |
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* @methodOf ovi |
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*/ |
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ovi.onReady = function(libs) { |
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//default, do nothing |
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//console.log("onReady:"); |
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//console.log(libs); |
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334 |
}; |
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// that.onReady = onReady; |
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336 |
|
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337 |
/** |
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338 |
* ovi.testIfLoaded - Utility function to test if the specified lib names are marked as loaded in the specified loaded libs object. |
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* Used to test the status of libs in ovi.onReady. |
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340 |
* |
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* @param {String,Array} |
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* libNames Names of one or more libraries to be included, specified as an |
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* array of strings or as a comma separated string. |
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344 |
* |
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* @param {Object} |
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* loadedLibs A mapping of lib name string to load status (0 - not loaded, 1 - loaded) |
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347 |
* |
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* @return {Boolean} |
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349 |
* |
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350 |
* @function |
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351 |
* @methodOf ovi |
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352 |
*/ |
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353 |
ovi.testIfLoaded = function(libNames, loadedLibs){ |
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var reqdlibs = libNames; |
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if (typeof libNames === 'string') |
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reqdlibs = libNames.split(','); |
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for (var index = 0; index < reqdlibs.length; index ++){ |
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var libName = reqdlibs[index].replace(/\s/g,''); |
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if ((libName in loadedLibs) && (loadedLibs[libName] == 1)) |
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continue; |
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361 |
else |
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362 |
return false; |
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363 |
} |
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return true; |
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365 |
}; |
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// that.testIfLoaded = testIfLoaded; |
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367 |
|
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368 |
/** |
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* ovi.setCallerId - Sets caller id required to authenticate API caller with Ovi API backend. |
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370 |
* |
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* @param {String} |
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* cid - Caller id string |
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373 |
* |
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* @function |
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* @methodOf ovi |
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*/ |
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ovi.setCallerId = function(cid){ |
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ovi.description.caller_id = cid; |
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379 |
}; |
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380 |
|
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// return that; |
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// }(); |
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383 |
})(ovi); |
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384 |
|
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385 |
|
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386 |
/** |
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* @property {Object} services Object that holds configurable parameters of all the libraries. |
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* @memberOf ovi |
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389 |
*/ |
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ovi.services = {}; |
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ovi.services["import"] = ovi.description; |
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392 |
|
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393 |
/** |
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* @property {Object} libName Object that holds the identified name of all the OVI API libraries. |
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* @memberOf ovi |
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*/ |
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ovi.libName = {}; |
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ovi.libName["ovi.oviapi"] = ovi; |
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399 |
|
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ovi.include('ovi.config'); |
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401 |
|
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402 |
/* |
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@@todo: |
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404 |
|
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- if one include inside of another fails to load, then failure is silent |
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- file imports will fail silently if the path is wrong |
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407 |
- Safari reinclude doesn't work (seems that DOM removeChild doesn't really remove the script) |
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Revision: 201019
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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