root / trunk / web / dojo / dojox / html / metrics.js @ 11
History | View | Annotate | Download (3.33 KB)
| 1 | 9 | andrej.cim | /*
|
|---|---|---|---|
| 2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
|
||
| 3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
|
||
| 4 | see: http://dojotoolkit.org/license for details
|
||
| 5 | */
|
||
| 6 | |||
| 7 | |||
| 8 | if(!dojo._hasResource["dojox.html.metrics"]){ |
||
| 9 | dojo._hasResource["dojox.html.metrics"]=true; |
||
| 10 | dojo.provide("dojox.html.metrics");
|
||
| 11 | (function(){
|
||
| 12 | var _1=dojox.html.metrics;
|
||
| 13 | _1.getFontMeasurements=function(){ |
||
| 14 | var _2={"1em":0,"1ex":0,"100%":0,"12pt":0,"16px":0,"xx-small":0,"x-small":0,"small":0,"medium":0,"large":0,"x-large":0,"xx-large":0}; |
||
| 15 | if(dojo.isIE){
|
||
| 16 | dojo.doc.documentElement.style.fontSize="100%";
|
||
| 17 | } |
||
| 18 | var _3=dojo.doc.createElement("div"); |
||
| 19 | var ds=_3.style;
|
||
| 20 | ds.position="absolute";
|
||
| 21 | ds.left="-100px";
|
||
| 22 | ds.top="0";
|
||
| 23 | ds.width="30px";
|
||
| 24 | ds.height="1000em";
|
||
| 25 | ds.borderWidth="0";
|
||
| 26 | ds.margin="0";
|
||
| 27 | ds.padding="0";
|
||
| 28 | ds.outline="0";
|
||
| 29 | ds.lineHeight="1";
|
||
| 30 | ds.overflow="hidden";
|
||
| 31 | dojo.body().appendChild(_3); |
||
| 32 | for(var p in _2){ |
||
| 33 | ds.fontSize=p; |
||
| 34 | _2[p]=Math.round(_3.offsetHeight*12/16)*16/12/1000; |
||
| 35 | } |
||
| 36 | dojo.body().removeChild(_3); |
||
| 37 | _3=null;
|
||
| 38 | return _2;
|
||
| 39 | }; |
||
| 40 | var _4=null; |
||
| 41 | _1.getCachedFontMeasurements=function(_5){ |
||
| 42 | if(_5||!_4){
|
||
| 43 | _4=_1.getFontMeasurements(); |
||
| 44 | } |
||
| 45 | return _4;
|
||
| 46 | }; |
||
| 47 | var _6=null,_7={}; |
||
| 48 | _1.getTextBox=function(_8,_9,_a){ |
||
| 49 | var m,s;
|
||
| 50 | if(!_6){
|
||
| 51 | m=_6=dojo.doc.createElement("div");
|
||
| 52 | var c=dojo.doc.createElement("div"); |
||
| 53 | c.appendChild(m); |
||
| 54 | s=c.style; |
||
| 55 | s.overflow="scroll";
|
||
| 56 | s.position="absolute";
|
||
| 57 | s.left="0px";
|
||
| 58 | s.top="-10000px";
|
||
| 59 | s.width="1px";
|
||
| 60 | s.height="1px";
|
||
| 61 | s.visibility="hidden";
|
||
| 62 | s.borderWidth="0";
|
||
| 63 | s.margin="0";
|
||
| 64 | s.padding="0";
|
||
| 65 | s.outline="0";
|
||
| 66 | dojo.body().appendChild(c); |
||
| 67 | }else{
|
||
| 68 | m=_6; |
||
| 69 | } |
||
| 70 | m.className="";
|
||
| 71 | s=m.style; |
||
| 72 | s.borderWidth="0";
|
||
| 73 | s.margin="0";
|
||
| 74 | s.padding="0";
|
||
| 75 | s.outline="0";
|
||
| 76 | if(arguments.length>1&&_9){ |
||
| 77 | for(var i in _9){ |
||
| 78 | if(i in _7){ |
||
| 79 | continue;
|
||
| 80 | } |
||
| 81 | s[i]=_9[i]; |
||
| 82 | } |
||
| 83 | } |
||
| 84 | if(arguments.length>2&&_a){ |
||
| 85 | m.className=_a; |
||
| 86 | } |
||
| 87 | m.innerHTML=_8; |
||
| 88 | var _b=dojo.position(m);
|
||
| 89 | _b.w=m.parentNode.scrollWidth; |
||
| 90 | return _b;
|
||
| 91 | }; |
||
| 92 | var _c={w:16,h:16}; |
||
| 93 | _1.getScrollbar=function(){ |
||
| 94 | return {w:_c.w,h:_c.h}; |
||
| 95 | }; |
||
| 96 | _1._fontResizeNode=null;
|
||
| 97 | _1.initOnFontResize=function(_d){ |
||
| 98 | var f=_1._fontResizeNode=dojo.doc.createElement("iframe"); |
||
| 99 | var fs=f.style;
|
||
| 100 | fs.position="absolute";
|
||
| 101 | fs.width="5em";
|
||
| 102 | fs.height="10em";
|
||
| 103 | fs.top="-10000px";
|
||
| 104 | if(dojo.isIE){
|
||
| 105 | f.onreadystatechange=function(){ |
||
| 106 | if(f.contentWindow.document.readyState=="complete"){ |
||
| 107 | f.onresize=f.contentWindow.parent[dojox._scopeName].html.metrics._fontresize; |
||
| 108 | } |
||
| 109 | }; |
||
| 110 | }else{
|
||
| 111 | f.onload=function(){ |
||
| 112 | f.contentWindow.onresize=f.contentWindow.parent[dojox._scopeName].html.metrics._fontresize; |
||
| 113 | }; |
||
| 114 | } |
||
| 115 | f.setAttribute("src","javascript:'<html><head><script>if(\"loadFirebugConsole\" in window){window.loadFirebugConsole();}</script></head><body></body></html>'"); |
||
| 116 | dojo.body().appendChild(f); |
||
| 117 | _1.initOnFontResize=function(){ |
||
| 118 | }; |
||
| 119 | }; |
||
| 120 | _1.onFontResize=function(){ |
||
| 121 | }; |
||
| 122 | _1._fontresize=function(){ |
||
| 123 | _1.onFontResize(); |
||
| 124 | }; |
||
| 125 | dojo.addOnUnload(function(){
|
||
| 126 | var f=_1._fontResizeNode;
|
||
| 127 | if(f){
|
||
| 128 | if(dojo.isIE&&f.onresize){
|
||
| 129 | f.onresize=null;
|
||
| 130 | }else{
|
||
| 131 | if(f.contentWindow&&f.contentWindow.onresize){
|
||
| 132 | f.contentWindow.onresize=null;
|
||
| 133 | } |
||
| 134 | } |
||
| 135 | _1._fontResizeNode=null;
|
||
| 136 | } |
||
| 137 | }); |
||
| 138 | dojo.addOnLoad(function(){
|
||
| 139 | try{
|
||
| 140 | var n=dojo.doc.createElement("div"); |
||
| 141 | n.style.cssText="top:0;left:0;width:100px;height:100px;overflow:scroll;position:absolute;visibility:hidden;";
|
||
| 142 | dojo.body().appendChild(n); |
||
| 143 | _c.w=n.offsetWidth-n.clientWidth; |
||
| 144 | _c.h=n.offsetHeight-n.clientHeight; |
||
| 145 | dojo.body().removeChild(n); |
||
| 146 | delete n;
|
||
| 147 | } |
||
| 148 | catch(e){
|
||
| 149 | } |
||
| 150 | if("fontSizeWatch" in dojo.config&&!!dojo.config.fontSizeWatch){ |
||
| 151 | _1.initOnFontResize(); |
||
| 152 | } |
||
| 153 | }); |
||
| 154 | })(); |
||
| 155 | } |