Your IP : 172.69.59.17
(function() {
BX.FixFontSize = function(params)
{
var widthNode, computedStyles, width;
this.node = null;
this.prevWindowSize = 0;
this.prevWrapperSize = 0;
this.mainWrapper = null;
this.textWrapper = null;
this.objList = params.objList;
this.minFontSizeList = [];
this.minFontSize = 0;
if (params.onresize)
{
this.prevWindowSize = window.innerWidth || document.documentElement.clientWidth;
BX.bind(window, 'resize', BX.throttle(this.onResize, 350, this));
}
if (params.onAdaptiveResize)
{
widthNode = this.objList[0].scaleBy || this.objList[0].node;
computedStyles = getComputedStyle(widthNode);
this.prevWrapperSize = parseInt(computedStyles["width"]) - parseInt(computedStyles["paddingLeft"]) - parseInt(computedStyles["paddingRight"]);
BX.bind(window, 'resize', BX.throttle(this.onAdaptiveResize, 350, this));
}
this.createTestNodes();
this.decrease();
};
BX.FixFontSize.prototype =
{
createTestNodes: function()
{
this.textWrapper = BX.create('div',{
style : {
display : 'inline-block',
whiteSpace : 'nowrap'
}
});
this.mainWrapper = BX.create('div',{
style : {
height : 0,
overflow : 'hidden'
},
children : [this.textWrapper]
});
},
insertTestNodes: function()
{
document.body.appendChild(this.mainWrapper);
},
removeTestNodes: function()
{
document.body.removeChild(this.mainWrapper);
},
decrease: function()
{
var width,
fontSize,
widthNode,
computedStyles;
this.insertTestNodes();
for(var i=this.objList.length-1; i>=0; i--)
{
widthNode = this.objList[i].scaleBy || this.objList[i].node;
computedStyles = getComputedStyle(widthNode);
width = parseInt(computedStyles["width"]) - parseInt(computedStyles["paddingLeft"]) - parseInt(computedStyles["paddingRight"]);
fontSize = parseInt(getComputedStyle(this.objList[i].node)["font-size"]);
this.textWrapperSetStyle(this.objList[i].node);
if(this.textWrapperInsertText(this.objList[i].node))
{
while(this.textWrapper.offsetWidth > width && fontSize > 0)
{
this.textWrapper.style.fontSize = --fontSize + 'px';
}
if(this.objList[i].smallestValue)
{
this.minFontSize = this.minFontSize ? Math.min(this.minFontSize, fontSize) : fontSize;
this.minFontSizeList.push(this.objList[i].node)
}
else
{
this.objList[i].node.style.fontSize = fontSize + 'px';
}
}
}
if(this.minFontSizeList.length > 0)
this.setMinFont();
this.removeTestNodes();
},
increase: function()
{
this.insertTestNodes();
var width,
fontSize,
widthNode,
computedStyles;
this.insertTestNodes();
for(var i=this.objList.length-1; i>=0; i--)
{
widthNode = this.objList[i].scaleBy || this.objList[i].node;
computedStyles = getComputedStyle(widthNode);
width = parseInt(computedStyles["width"]) - parseInt(computedStyles["paddingLeft"]) - parseInt(computedStyles["paddingRight"]);
fontSize = parseInt(getComputedStyle(this.objList[i].node)["font-size"]);
this.textWrapperSetStyle(this.objList[i].node);
if(this.textWrapperInsertText(this.objList[i].node))
{
while(this.textWrapper.offsetWidth < width && fontSize < this.objList[i].maxFontSize)
{
this.textWrapper.style.fontSize = ++fontSize + 'px';
}
fontSize--;
if(this.objList[i].smallestValue)
{
this.minFontSize = this.minFontSize ? Math.min(this.minFontSize, fontSize) : fontSize;
this.minFontSizeList.push(this.objList[i].node)
}
else
{
this.objList[i].node.style.fontSize = fontSize + 'px';
}
}
}
if(this.minFontSizeList.length > 0)
this.setMinFont();
this.removeTestNodes();
},
setMinFont : function()
{
for(var i = this.minFontSizeList.length-1; i>=0; i--)
{
this.minFontSizeList[i].style.fontSize = this.minFontSize + 'px';
}
this.minFontSize = 0;
},
onResize : function()
{
var width = window.innerWidth || document.documentElement.clientWidth;
if(this.prevWindowSize > width)
this.decrease();
else if (this.prevWindowSize < width)
this.increase();
this.prevWindowSize = width;
},
onAdaptiveResize : function()
{
var widthNode = this.objList[0].scaleBy || this.objList[0].node,
computedStyles = getComputedStyle(widthNode),
width = parseInt(computedStyles["width"]) - parseInt(computedStyles["paddingLeft"]) - parseInt(computedStyles["paddingRight"]);
if (this.prevWrapperSize > width)
this.decrease();
else if (this.prevWrapperSize < width)
this.increase();
this.prevWrapperSize = width;
},
textWrapperInsertText : function(node)
{
if(node.textContent){
this.textWrapper.textContent = node.textContent;
return true;
}
else if(node.innerText)
{
this.textWrapper.innerText = node.innerText;
return true;
}
else {
return false;
}
},
textWrapperSetStyle : function(node)
{
this.textWrapper.style.fontFamily = getComputedStyle(node)["font-family"];
this.textWrapper.style.fontSize = getComputedStyle(node)["font-size"];
this.textWrapper.style.fontStyle = getComputedStyle(node)["font-style"];
this.textWrapper.style.fontWeight = getComputedStyle(node)["font-weight"];
this.textWrapper.style.lineHeight = getComputedStyle(node)["line-height"];
}
};
BX.FixFontSize.init = function(params)
{
return new BX.FixFontSize(params);
};
})();