1 // ////////////////////////////////////////////////////////////////////////////

     2 // Symbian Foundation Example Code

     3 //

     4 // This software is in the public domain. No copyright is claimed, and you 

     5 // may use it for any purpose without license from the Symbian Foundation.

     6 // No warranty for any purpose is expressed or implied by the authors or

     7 // the Symbian Foundation. 

     8 // ////////////////////////////////////////////////////////////////////////////

     9 

    10 var logEnabled = true;

    11 

    12 // Opens a URL in a separate browser window

    13 function openURL(url) {

    14     if (window.widget) {

    15         // in WRT

    16         widget.openURL(url);

    17     } else {

    18         // outside WRT

    19         window.open(url, "NewWindow");

    20     }

    21 }

    22 

    23 function increaseFontSize(){

    24     if (window.widget) {

    25 		setCssBodyFontSize(currentFontSize + 2);

    26 	}

    27 }

    28 

    29 function decreaseFontSize(){

    30     if (window.widget) {

    31 		if (currentFontSize > 4) {

    32 			setCssBodyFontSize(currentFontSize - 2);

    33 		}

    34 	}

    35 }

    36 

    37 function setCssBodyFontSize(size){

    38     if (window.widget) {

    39 		currentFontSize = size;

    40 		var sizestring = "" + size;

    41 		document.body.style.fontSize = sizestring + "px";

    42 		widget.setPreferenceForKey(sizestring, "fontsize");

    43 	}

    44 }

    45 

    46 

    47 function log(txt) {

    48 	if (logEnabled) {

    49 //		txt = txt.replace(/</g, unescape("%26lt%3B")).replace(/>/g, unescape("%26gt%3B")); 

    50 //		txt = txt.replace(/</g, "&lt");

    51 //		txt = txt.replace(/\>/g, "&gt");

    52 		document.getElementById("debugdiv").innerHTML = txt + "<br> " + document.getElementById("debugdiv").innerHTML;

    53 	} 

    54 }

    55 

    56 function setupLog() {

    57 	if (logEnabled) {

    58 		if (window.widget) {

    59 			var logMenuItem = new MenuItem("Toggle log", 99);

    60 			logMenuItem.onSelect = function() {

    61 				var div = document.getElementById("debugdiv");

    62 				var main = document.getElementById("uimandiv");

    63 				if ( div.style.display == "none" ) {

    64 					div.style.display = "";

    65 					main.style.display = "none";

    66 				} else {

    67 					div.style.display = "none";

    68 					main.style.display = "";

    69 				}

    70 			}

    71 			menu.append(logMenuItem);

    72 		}

    73 	}

    74 }

    75 

    76 function shorten(text, len) {

    77 	if ( text.length < len + 3 ) return text;

    78 	return text.substring(0,len) + "...";

    79 }

    80 

    81 function uniDecode(text) {

    82 	var ptr = 0;

    83 	var buf = "";

    84 	while ( ptr < text.length ){

    85 		if ( text.charAt(ptr) == '%' ) {

    86 			// read next two chars and interpret as hex UTF-8 char code

    87 			var hex = "";

    88 			ptr ++;

    89 			hex += text.charAt(ptr) ;

    90 			ptr ++;

    91 			hex += text.charAt(ptr) ;

    92 			var ccode = unhex(hex);

    93 			// decode utf-8

    94 			if (ccode < 128) { // 1 byte char

    95 				buf += String.fromCharCode(ccode);

    96 				ptr++;

    97 			}

    98 			else if((ccode > 191) && (ccode < 224)) { // 2 byte char 

    99 				var hex2 = "";

   100 				ptr ++; // move to % 

   101 				ptr ++; // move to first hex digit 

   102 				hex2 += text.charAt(ptr) ;

   103 				ptr ++;

   104 				hex2 += text.charAt(ptr) ;

   105 				var ccode2 = unhex(hex2);

   106 				// need more stuff to get char

   107 				buf += String.fromCharCode(((ccode & 31) << 6) | (ccode2 & 63));

   108 				ptr ++;

   109 			}

   110 			else {  // 3 byte char

   111 				var hex2 = "";

   112 				ptr ++; // move to % 

   113 				ptr ++; // move to first hex digit 

   114 				hex2 += text.charAt(ptr) ;

   115 				ptr ++;

   116 				hex2 += text.charAt(ptr) ;

   117 				var ccode2 = unhex(hex2);

   118 				var hex3 = "";

   119 				ptr ++; // move to % 

   120 				ptr ++; // move to first hex digit 

   121 				hex3 += text.charAt(ptr) ;

   122 				ptr ++;

   123 				hex3 += text.charAt(ptr) ;

   124 				var ccode3 = unhex(hex2);

   125 				buf += String.fromCharCode(((ccode & 15) << 12) | ((ccode2 & 63) << 6) | (ccode3 & 63));

   126 				ptr++;

   127 			}

   128 		} else {

   129 			buf += text.charAt(ptr);

   130 			ptr ++;

   131 		}

   132 	}

   133 	return buf;

   134 }

   135 

   136 function unhex(hx) {

   137 	var val = 0;

   138 	for ( var i = 0 ; i < hx.length ; i ++ ) {

   139 		val = val * 16;

   140 		switch(hx.charAt(i)) {

   141 			case '0': continue; 

   142 			case '1':

   143 			case '2':

   144 			case '3':

   145 			case '4':

   146 			case '5':

   147 			case '6':

   148 			case '7':

   149 			case '8':

   150 			case '9': {

   151 				val += parseInt(hx.charAt(i));

   152 				break;

   153 			}

   154 			case 'A':

   155 			case 'a':{

   156 				val += 10;

   157 				break;

   158 			}

   159 			case 'B':

   160 			case 'b':{

   161 				val += 11;

   162 				break;

   163 			}

   164 			case 'C':

   165 			case 'c':{

   166 				val += 12;

   167 				break;

   168 			}

   169 			case 'D':

   170 			case 'd':{

   171 				val += 13;

   172 				break;

   173 			}

   174 			case 'E':

   175 			case 'e':{

   176 				val += 14;

   177 				break;

   178 			}

   179 			case 'F':

   180 			case 'f':{

   181 				val += 15;

   182 				break;

   183 			}

   184 		}

   185 	}

   186 	return val;

   187 }

   188 

   189 function shortFormatTime(ts) {

   190 	var date = new Date(ts);

   191 	var ret = "";

   192 	ret += pad(2,"0", date.getDate());

   193 	ret += "/";

   194 	ret += pad(2,"0",(1+date.getMonth()));

   195 	ret += " ";

   196 	ret += pad(2,"0", date.getHours());

   197 	ret += ":";

   198 	ret += pad(2,"0",date.getMinutes());

   199 	return ret;

   200 }

   201 

   202 

   203 function nocache(url) {

   204     if (url.indexOf("?") == -1) {

   205         url += "?";

   206     } else {

   207         url += "&";

   208     }

   209     url += "xnocache=" + (new Date().getTime());

   210 	return url;

   211 }

   212 

   213 function pad(_num, _char, _val) {

   214 	var buf = ""+ _val;

   215 	while(buf.length < _num){

   216 		buf = _char + "" + buf;

   217 	}

   218 //	alert("pad: num=" +num + ", char=" + char + ", val=" + val +", result=" +buf );

   219 	return buf;

   220 }

   221 

   222 function getViewRep(view) {

   223 	if ( view == null ) {

   224 		return "null";

   225 	} else if (view) {

   226 		return view.caption;

   227 	} else {

   228 		return "undefined";

   229 	}

   230 }

   231 

   232 

   233 function ViewCache(size) {

   234 	this.size = size;

   235 	this.names = new Array();

   236 	this.views = new Array();

   237 }

   238 

   239 ViewCache.prototype.addView = function(name,view) {

   240 	this.names.splice(0,0,name);

   241 	this.views.splice(0,0,view);

   242 	

   243 	if (this.names.length > this.size) {

   244 		this.names.splice(this.size, 1);

   245 		this.views.splice(this.size, 1);

   246 	}

   247 }

   248 

   249 ViewCache.prototype.getView = function(name){

   250 	for ( var i = 0 ; i < this.names.length ; i++ ) {

   251 		if ( name == this.names[i] ) {

   252 			return this.views[i];

   253 		}

   254 	}

   255 	return null;

   256 }