/**
* 基本的函数
* Created by GUY on 2015/6/24.
*/
BI.Func = {};
BI.extend(BI.Func, {
/**
* 创建唯一的名字
* @param array
* @param name
* @returns {*}
*/
createDistinctName: function (array, name) {
var src = name, idx = 1;
name = name || "";
while (true) {
if (BI.every(array, function (i, item) {
return item.name !== name;
})) {
break;
}
name = src + (idx++);
}
return name;
},
/**
* 获取搜索结果
* @param items
* @param keyword
* @param param 搜索哪个属性
*/
getSearchResult: function (items, keyword, param) {
var isArray = BI.isArray(items);
items = isArray ? BI.flatten(items) : items;
param || (param = "text");
if (!BI.isKey(keyword)) {
return {
finded: BI.deepClone(items),
matched: isArray ? [] : {}
};
}
var t, text, py;
keyword = BI.toUpperCase(keyword);
var matched = isArray ? [] : {}, finded = isArray ? [] : {};
BI.each(items, function (i, item) {
item = BI.deepClone(item);
t = BI.stripEL(item);
text = t[param] || t.text || t.value || t.name || t;
py = BI.makeFirstPY(text);
text = BI.toUpperCase(text);
py = BI.toUpperCase(py);
var pidx;
if (text.indexOf(keyword) > -1) {
if (text === keyword) {
isArray ? matched.push(item) : (matched[i] = item);
} else {
isArray ? finded.push(item) : (finded[i] = item);
}
} else if (pidx = py.indexOf(keyword), (pidx > -1 && Math.floor(pidx / text.length) === Math.floor((pidx + keyword.length - 1) / text.length))) {
if (text === keyword || keyword.length === text.length) {
isArray ? matched.push(item) : (matched[i] = item);
} else {
isArray ? finded.push(item) : (finded[i] = item);
}
}
});
return {
matched: matched,
finded: finded
};
}
});
/**
* 对DOM操作的通用函数
* @type {{}}
*/
BI.DOM = {};
BI.extend(BI.DOM, {
/**
* 把dom数组或元素悬挂起来,使其不对html产生影响
* @param dom
*/
hang: function (doms) {
if (BI.isEmpty(doms)) {
return;
}
var frag = document.createDocumentFragment();
BI.each(doms, function (i, dom) {
dom instanceof BI.Widget && (dom = dom.element);
dom instanceof $ && dom[0] && frag.appendChild(dom[0]);
});
return frag;
},
isExist: function (obj) {
return $("body").find(obj.element).length > 0;
},
// 预加载图片
preloadImages: function (srcArray, onload) {
var count = 0, images = [];
function complete () {
count++;
if (count >= srcArray.length) {
onload();
}
}
BI.each(srcArray, function (i, src) {
images[i] = new Image();
images[i].src = src;
images[i].onload = function () {
complete();
};
images[i].onerror = function () {
complete();
};
});
},
isColor: function (color) {
return color && (this.isRGBColor(color) || this.isHexColor(color));
},
isRGBColor: function (color) {
if (!color) {
return false;
}
return color.substr(0, 3) === "rgb";
},
isHexColor: function (color) {
if (!color) {
return false;
}
return color[0] === "#" && color.length === 7;
},
isDarkColor: function (hex) {
if (!hex || !this.isHexColor(hex)) {
return false;
}
var rgb = this.rgb2json(this.hex2rgb(hex));
var grayLevel = Math.round(rgb.r * 0.299 + rgb.g * 0.587 + rgb.b * 0.114);
if (grayLevel < 192/** 网上给的是140**/) {
return true;
}
return false;
},
// 获取对比颜色
getContrastColor: function (color) {
if (!color || !this.isColor(color)) {
return "";
}
if (this.isDarkColor(color)) {
return "#ffffff";
}
return "#1a1a1a";
},
rgb2hex: function (rgbColour) {
if (!rgbColour || rgbColour.substr(0, 3) != "rgb") {
return "";
}
var rgbValues = rgbColour.match(/\d+(\.\d+)?/g);
var red = BI.parseInt(rgbValues[0]);
var green = BI.parseInt(rgbValues[1]);
var blue = BI.parseInt(rgbValues[2]);
var hexColour = "#" + this.int2hex(red) + this.int2hex(green) + this.int2hex(blue);
return hexColour;
},
rgb2json: function (rgbColour) {
if (!rgbColour) {
return {};
}
if (!this.isRGBColor(rgbColour)) {
return {};
}
var rgbValues = rgbColour.match(/\d+(\.\d+)?/g);
return {
r: BI.parseInt(rgbValues[0]),
g: BI.parseInt(rgbValues[1]),
b: BI.parseInt(rgbValues[2])
};
},
rgba2json: function (rgbColour) {
if (!rgbColour) {
return {};
}
var rgbValues = rgbColour.match(/\d+(\.\d+)?/g);
return {
r: BI.parseInt(rgbValues[0]),
g: BI.parseInt(rgbValues[1]),
b: BI.parseInt(rgbValues[2]),
a: BI.parseFloat(rgbValues[3])
};
},
json2rgb: function (rgb) {
if (!BI.isKey(rgb.r) || !BI.isKey(rgb.g) || !BI.isKey(rgb.b)) {
return "";
}
return "rgb(" + rgb.r + "," + rgb.g + "," + rgb.b + ")";
},
json2rgba: function (rgba) {
if (!BI.isKey(rgba.r) || !BI.isKey(rgba.g) || !BI.isKey(rgba.b)) {
return "";
}
return "rgba(" + rgba.r + "," + rgba.g + "," + rgba.b + "," + rgba.a + ")";
},
int2hex: function (strNum) {
var hexdig = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f"];
return hexdig[strNum >>> 4] + "" + hexdig[strNum & 15];
},
hex2rgb: function (color) {
if (!color) {
return "";
}
if (!this.isHexColor(color)) {
return color;
}
var tempValue = "rgb(", colorArray;
if (color.length === 7) {
colorArray = [BI.parseInt("0x" + color.substring(1, 3)),
BI.parseInt("0x" + color.substring(3, 5)),
BI.parseInt("0x" + color.substring(5, 7))];
} else if (color.length === 4) {
colorArray = [BI.parseInt("0x" + color.substring(1, 2)),
BI.parseInt("0x" + color.substring(2, 3)),
BI.parseInt("0x" + color.substring(3, 4))];
}
tempValue += colorArray[0] + ",";
tempValue += colorArray[1] + ",";
tempValue += colorArray[2] + ")";
return tempValue;
},
rgba2rgb: function (rgbColour, BGcolor) {
if (BI.isNull(BGcolor)) {
BGcolor = 1;
}
if (rgbColour.substr(0, 4) != "rgba") {
return "";
}
var rgbValues = rgbColour.match(/\d+(\.\d+)?/g);
if (rgbValues.length < 4) {
return "";
}
var R = BI.parseFloat(rgbValues[0]);
var G = BI.parseFloat(rgbValues[1]);
var B = BI.parseFloat(rgbValues[2]);
var A = BI.parseFloat(rgbValues[3]);
return "rgb(" + Math.floor(255 * (BGcolor * (1 - A )) + R * A) + "," +
Math.floor(255 * (BGcolor * (1 - A )) + G * A) + "," +
Math.floor(255 * (BGcolor * (1 - A )) + B * A) + ")";
},
getTextSizeWidth: function (text, fontSize) {
var span = $("<span></span>").addClass("text-width-span").appendTo($("body"));
if (fontSize == null) {
fontSize = 12;
}
fontSize = fontSize + "px";
span.css("font-size", fontSize).text(text);
var width = span.width();
span.remove();
return width;
},
// 获取滚动条的宽度
getScrollWidth: function () {
if (this._scrollWidth == null) {
var ul = $("<div>").width(50).height(50).css({
position: "absolute",
top: "-9999px",
overflow: "scroll"
}).appendTo($("body"));
this._scrollWidth = ul[0].offsetWidth - ul[0].clientWidth;
ul.destroy();
}
return this._scrollWidth;
}
});