我正在建立一个摄影网站,我想创建一个漂亮的“平铺”界面,它看起来类似于新版本 MSN Money Now 上的界面(注意 - 新版本的网站只能在 Windows 8 PC 上查看) - http://t.money.msn.com/now/。我试图在 Javascript 中实现这一点。
这是一个带有预填充数据的示例页面:http: //photoachiever.azurewebsites.net/en
我创建了 Tile 组——每个高 2 个单位,宽 2 个单位,可以包含一个大方形瓷砖、两个宽瓷砖或四个小方形瓷砖。现在,因为我希望网站具有响应性,所以我想在 Javascript 中动态计算最佳单元大小,以便始终填充 100% 的空间,并且对于更宽的屏幕,例如更多的列可见等等。它在 MSN Money 网站上的工作方式相同,但有两个重要区别:
1)当我的图像第一次加载时,我只会看到它们的最高结果,直到所有图像都被加载并执行 JS 为止。MSN Money 网站只显示一个绿色区域,随后出现的图像已经适当调整大小。2)当我调整窗口大小时,它远非流畅,计算和主要图像调整大小非常明显。然而,在 MSN Money 上,调整大小非常流畅,甚至图像似乎只是调整大小而没有出现故障。此外 - 他们设法使字体调整大小流畅。
请您解释一下,MSN Money 网站是如何取得这些结果的?我在 Stack Overflow 上看到了一些类似的问题,但它们从不要求单个图块的宽度和高度相等,而我的设计确实需要这些。
额外问题:您能否添加一些关于如何实现 div 的响应式动画重排的解释?http://www.brainyquote.com/上的示例- 当您更改窗口大小时,它会以动画方式重排所有引号。
编辑:我附上了我当前的代码,这远非正确(性能非常低,图像首先显得太大,并且在全部下载后它们的大小下降)。
代码的第一部分(将所有事件附加到图块并在单击时添加动画):
function attachTileEvents() {
if ($(".tile-flow").size() >= 1) {
$(window).resize(function () {
delay(function () {
resizeTiles();
}, 100);
});
$(document).on("click", ".tile-flow .load-next-page", manualLoadContentDetection);
$(window).on("scroll", scrollLoadContentDetection);
$(document).on("touchend", scrollLoadContentDetection);
}
resizeTiles();
$(".tile .contents").each(function () {
var tile = $(this).parent()[0]
var mouse = { x: 0, y: 0, down: false };
var maxRotation = 16;
var minScale = 0.95;
var setRotation = function (scaled) {
//Rotations as percentages
var width = tile.offsetWidth;
var height = tile.offsetHeight;
var diag = Math.sqrt((width / 2) * (width / 2) + (height / 2) * (height / 2));
var dist = Math.sqrt((mouse.x - (width / 2)) * (mouse.x - (width / 2)) + (mouse.y - (height / 2)) * (mouse.y - (height / 2)));
var fract = 1.0;
if (dist > 0) {
fract = dist / diag;
}
var yRotation = (mouse.x - (width / 2)) / (width / 2);
var xRotation = (mouse.y - (height / 2)) / (height / 2);
if (scaled) {
tile.style.webkitTransform = "rotateX(" + -xRotation * maxRotation + "deg)" + " rotateY(" + yRotation * maxRotation + "deg)" + " scale(" + (minScale + fract * (1 - minScale)) + ")";
tile.style.mozTransform = "rotateX(" + -xRotation * maxRotation + "deg)" + " rotateY(" + yRotation * maxRotation + "deg)" + " scale(" + (minScale + fract * (1 - minScale)) + ")";
tile.style.transform = "rotateX(" + -xRotation * maxRotation + "deg)" + " rotateY(" + yRotation * maxRotation + "deg)" + " scale(" + (minScale + fract * (1 - minScale)) + ")";
} else {
tile.style.webkitTransform = "rotateX(" + -xRotation * maxRotation + "deg)" + " rotateY(" + yRotation * maxRotation + "deg)";
tile.style.mozTransform = "rotateX(" + -xRotation * maxRotation + "deg)" + " rotateY(" + yRotation * maxRotation + "deg)";
tile.style.transform = "rotateX(" + -xRotation * maxRotation + "deg)" + " rotateY(" + yRotation * maxRotation + "deg)";
}
}
var MouseDown = function (e) { mouse.x = e.offsetX; mouse.y = e.offsetY; mouse.down = true; setRotation(true); }
var MouseUp = function (e) { if (mouse.down) { mouse.down = false; tile.style.webkitTransform = "rotateX(0deg)" + " rotateY(0deg) scale(1.0)"; tile.style.mozTransform = "rotateX(0deg)" + " rotateY(0deg) scale(1.0)"; tile.style.transform = "rotateX(0deg)" + " rotateY(0deg) scale(1.0)"; } }
var MouseOut = function (e) { mouse.down = false; tile.style.webkitTransform = "rotateX(0deg)" + " rotateY(0deg) scale(1.0)"; tile.style.mozTransform = "rotateX(0deg)" + " rotateY(0deg) scale(1.0)"; tile.style.transform = "rotateX(0deg)" + " rotateY(0deg) scale(1.0)"; }
var MouseMove = function (e) { mouse.x = e.offsetX; mouse.y = e.offsetY; if (mouse.down == true) { setRotation(false); } }
$(tile).on("mousemove", MouseMove);
$(tile).on("mousedown", MouseDown);
$(tile).on("mouseup", MouseUp);
$(tile).on("mouseout", MouseOut);
});}
主要部分 - 调整大小:
var TileSizes = { wideWidth: 0, singleWidth: 0, margin: 0 };
function resizeTiles() {
var rowColumnNumber = 2;
var width = $(window).width();
if (width >= 2500) {
rowColumnNumber = 7;
}
else if (width >= 2000) {
rowColumnNumber = 6;
} else if (width >= 1600) {
rowColumnNumber = 5;
} else if (width >= 1280) {
rowColumnNumber = 4;
} else if (width >= 768) {
rowColumnNumber = 3;
} else if (width >= 480) {
rowColumnNumber = 2;
} else {
rowColumnNumber = 1;
}
var totalWidth = $(".tile-flow").width() - 17; //compensate for the scrollbar
//calculate the margin size : 5% of the flow width
var margin = Math.round(totalWidth * 0.05 / rowColumnNumber);
var wideSize = Math.floor((totalWidth - margin * (rowColumnNumber - 1)) / rowColumnNumber);
var halfSize = Math.floor((wideSize - margin) / 2);
var quaterSize = Math.floor(halfSize * 2.5 / 3);
var heightSize = Math.floor(halfSize * 2 / 2.0);
var doubleHeightSize = heightSize * 2 + margin;
var detailsSize = quaterSize * 2 + margin;
TileSizes.wideWidth = doubleHeightSize;
TileSizes.singleWidth = heightSize;
TileSizes.margin = margin;
$(".big-square-tile").width(doubleHeightSize);
$(".big-square-tile").height(doubleHeightSize);
$(".wide-tile").width(doubleHeightSize);
$(".small-tile").width(halfSize);
$(".tile-flow .col .small-tile:even").css("margin-right", margin);
$(".small-tile").height(heightSize);
$(".wide-tile").height(heightSize);
$(".col").width(doubleHeightSize);
$(".col").css("margin-right", margin);
$(".col:nth-child(" + rowColumnNumber + "n)").css("margin-right", 0);
//all tiles get bottom margin
var how = 0;
$(".wide-tile .contents footer").each(function () {
if ((how % 4 == 0) || (how % 4 == 1)) {
$(this).width(TileSizes.singleWidth - 20);
} else {
$(this).height(75);
}
if (how % 4 == 0) {
$(this).css("left", TileSizes.wideWidth);
} else if (how % 4 == 1) {
$(this).css("left", -TileSizes.singleWidth);
}
else if (how % 4 == 2) {
$(this).css("top", TileSizes.singleWidth);
} else {
$(this).css("top", -95);
}
how = how + 1;
});
$(".big-square-tile .contents footer").each(function () {
$(this).height(75);
if (how % 2 == 0) {
$(this).css("top", TileSizes.wideWidth);
} else {
$(this).css("top", -95);
}
how = how + 1;
});
$(".small-tile .contents footer").each(function () {
$(this).width(TileSizes.singleWidth - 20);
$(this).height(TileSizes.singleWidth - 20);
if (how % 4 == 0) {
$(this).css("left", TileSizes.singleWidth);
} else if (how % 4 == 1) {
$(this).css("left", -TileSizes.singleWidth);
}
else if (how % 4 == 2) {
$(this).css("top", TileSizes.singleWidth);
} else {
$(this).css("top", -TileSizes.singleWidth);
}
how = how + 1;
});
$(".tile").css("margin-bottom", margin);
//resize images
var imageList = Array();
$(".big-square-tile img").each(function () {
imageList.push($(this));
var img = new Image();
img.onload = function () {
var originalHeight = this.height;
var originalWidth = this.width;
var index = parseInt(this.id.replace("RESIZINGBIG", ""));
if (originalHeight > originalWidth) {
imageList[index].css("height", "auto");
imageList[index].css("width", "100%");
} else {
imageList[index].css("height", "100%");
imageList[index].css("width", "auto");
}
}
img.id = "RESIZINGBIG" + (imageList.length - 1);
img.src = $(this).attr('src');
});
$(".small-tile img").each(function () {
imageList.push($(this));
var img = new Image();
img.onload = function () {
var originalHeight = this.height;
var originalWidth = this.width;
var index = parseInt(this.id.replace("RESIZINGSMALL", ""));
if (originalHeight > originalWidth) {
imageList[index].css("height", "auto");
imageList[index].css("width", "100%");
} else {
imageList[index].css("height", "100%");
imageList[index].css("width", "auto");
}
}
img.id = "RESIZINGSMALL" + (imageList.length - 1);
img.src = $(this).attr('src');
});
$(".wide-tile img").each(function () {
$(this).css("height", "auto");
$(this).css("width", "100%");
});}
下面是 HTML 代码现在的样例:
<div class="tile-flow">
<div class="tile-row">
<div class="col">
<div class="tile big-square-tile">
<div class="contents">
<img src="~/Images/Test/5.jpg" />
<footer>
<h1>Test</h1>
<span class="author">by Test</span>
</footer>
</div>
</div>
</div>
<div class="col">
<div class="tile small-tile">
<div class="contents">
<img src="~/Images/Test/2.jpg" />
<footer>
<h1>Test</h1>
<span class="author">by Test</span>
</footer>
</div>
</div>
<div class="tile small-tile">
<div class="contents">
<img src="~/Images/Test/3.jpg" />
<footer>
<h1>Test</h1>
<span class="author">by Test</span>
</footer>
</div>
</div>
<div class="tile wide-tile">
<div class="contents">
<img src="~/Images/Test/4.jpg" />
<footer>
<h1>Test</h1>
<span class="author">by Test</span>
</footer>
</div>
</div>
</div>
<div class="col">
<div class="tile big-square-tile">
<div class="contents">
<img src="~/Images/Test/6.jpg" />
<footer>
<h1>Test</h1>
<span class="author">by Test</span>
</footer>
</div>
</div>
</div>
<div class="col">
<div class="tile wide-tile">
<div class="contents">
<img src="~/Images/Test/1.jpg" />
<footer>
<h1>Test</h1>
<span class="author">by Test</span>
</footer>
</div>
</div>
<div class="tile wide-tile">
<div class="contents">
<img src="~/Images/Test/7.jpg" />
<footer>
<h1>Test</h1>
<span class="author">by Test</span>
</footer>
</div>
</div>
</div>
</div>
</div>