我正在寻找解决方案如何使用GreenSock动画库对DOM元素进行排序。 像这样的示例http://codepen.io/osublake/pen/RNLdpz 但是我想在添加新的tile函数后立即对对象进行排序。 所以新元素将直接出现在正确的位置。
<div class="layout">
<label><input id="mixed" name="layout" type="radio" value="mixed" checked=""/> Mixed Tile Size</label>
<label><input id="fixed" name="layout" type="radio" value="fixed"/> Fixed Tile Size</label>
<label><input id="column" name="layout" type="radio" value="column"/> Single Column</label>
</div>
<button id="add">ADD TILE</button>
<div id="list"></div>
var rowSize = 100;
var colSize = 100;
var gutter = 7; // Spacing between tiles
var numTiles = 25; // Number of tiles to initially populate the grid with
var fixedSize = false; // When true, each tile's colspan will be fixed to 1
var oneColumn = false; // When true, grid will only have 1 column and tiles have fixed colspan of 1
var threshold = "50%"; // This is amount of overlap between tiles needed to detect a collision
var $add = $("#add");
var $list = $("#list");
var $mode = $("input[name='layout']");
// Live node list of tiles
var tiles = $list[0].getElementsByClassName("tile");
var label = 1;
var zIndex = 1000;
var startWidth = "100%";
var startSize = colSize;
var singleWidth = colSize * 3;
var colCount = null;
var rowCount = null;
var gutterStep = null;
var shadow1 = "0 1px 3px 0 rgba(0, 0, 0, 0.5), 0 1px 2px 0 rgba(0, 0, 0, 0.6)";
var shadow2 = "0 6px 10px 0 rgba(0, 0, 0, 0.3), 0 2px 2px 0 rgba(0, 0, 0, 0.2)";
$(window).resize(resize);
$add.click(createTile);
$mode.change(init);
init();
// ========================================================================
// INIT
// ========================================================================
function init() {
var width = startWidth;
// This value is defined when this function
// is fired by a radio button change event
switch (this.value) {
case "mixed":
fixedSize = false;
oneColumn = false;
colSize = startSize;
break;
case "fixed":
fixedSize = true;
oneColumn = false;
colSize = startSize;
break;
case "column":
fixedSize = false;
oneColumn = true;
width = singleWidth;
colSize = singleWidth;
break;
}
$(".tile").remove();
TweenLite.to($list, 0.2, { width: width });
TweenLite.delayedCall(0.25, populateBoard);
function populateBoard() {
label = 1;
resize();
for (var i = 0; i < numTiles; i++) {
createTile();
}
}
}
// ========================================================================
// RESIZE
// ========================================================================
function resize() {
colCount = oneColumn ? 1 : Math.floor($list.outerWidth() / (colSize + gutter));
gutterStep = colCount == 1 ? gutter : (gutter * (colCount - 1) / colCount);
rowCount = 0;
layoutInvalidated();
}
// ========================================================================
// CHANGE POSITION
// ========================================================================
function changePosition(from, to, rowToUpdate) {
var $tiles = $(".tile");
var insert = from > to ? "insertBefore" : "insertAfter";
// Change DOM positions
$tiles.eq(from)[insert]($tiles.eq(to));
layoutInvalidated(rowToUpdate);
}
// ========================================================================
// CREATE TILE
// ========================================================================
function createTile() {
var colspan = fixedSize || oneColumn ? 1 : Math.floor(Math.random() * 2) + 1;
var element = $("<div></div>").addClass("tile").html(label++);
var lastX = 0;
Draggable.create(element, {
onDrag : onDrag,
onPress : onPress,
onRelease : onRelease,
zIndexBoost : false
});
// NOTE: Leave rowspan set to 1 because this demo
// doesn't calculate different row heights
var tile = {
col : null,
colspan : colspan,
height : 0,
inBounds : true,
index : null,
isDragging : false,
lastIndex : null,
newTile : true,
positioned : false,
row : null,
rowspan : 1,
width : 0,
x : 0,
y : 0
};
// Add tile properties to our element for quick lookup
element[0].tile = tile;
$list.append(element);
layoutInvalidated();
function onPress() {
lastX = this.x;
tile.isDragging = true;
tile.lastIndex = tile.index;
TweenLite.to(element, 0.2, {
autoAlpha : 0.75,
boxShadow : shadow2,
scale : 0.95,
zIndex : "+=1000"
});
}
function onDrag() {
// Move to end of list if not in bounds
if (!this.hitTest($list, 0)) {
tile.inBounds = false;
changePosition(tile.index, tiles.length - 1);
return;
}
tile.inBounds = true;
for (var i = 0; i < tiles.length; i++) {
// Row to update is used for a partial layout update
// Shift left/right checks if the tile is being dragged
// towards the the tile it is testing
var testTile = tiles[i].tile;
var onSameRow = (tile.row === testTile.row);
var rowToUpdate = onSameRow ? tile.row : -1;
var shiftLeft = onSameRow ? (this.x < lastX && tile.index > i) : true;
var shiftRight = onSameRow ? (this.x > lastX && tile.index < i) : true;
var validMove = (testTile.positioned && (shiftLeft || shiftRight));
if (this.hitTest(tiles[i], threshold) && validMove) {
changePosition(tile.index, i, rowToUpdate);
break;
}
}
lastX = this.x;
}
function onRelease() {
// Move tile back to last position if released out of bounds
this.hitTest($list, 0)
? layoutInvalidated()
: changePosition(tile.index, tile.lastIndex);
TweenLite.to(element, 0.2, {
autoAlpha : 1,
boxShadow: shadow1,
scale : 1,
x : tile.x,
y : tile.y,
zIndex : ++zIndex
});
tile.isDragging = false;
}
}
// ========================================================================
// LAYOUT INVALIDATED
// ========================================================================
function layoutInvalidated(rowToUpdate) {
var timeline = new TimelineMax();
var partialLayout = (rowToUpdate > -1);
var height = 0;
var col = 0;
var row = 0;
var time = 0.35;
$(".tile").each(function(index, element) {
var tile = this.tile;
var oldRow = tile.row;
var oldCol = tile.col;
var newTile = tile.newTile;
// PARTIAL LAYOUT: This condition can only occur while a tile is being
// dragged. The purpose of this is to only swap positions within a row,
// which will prevent a tile from jumping to another row if a space
// is available. Without this, a large tile in column 0 may appear
// to be stuck if hit by a smaller tile, and if there is space in the
// row above for the smaller tile. When the user stops dragging the
// tile, a full layout update will happen, allowing tiles to move to
// available spaces in rows above them.
if (partialLayout) {
row = tile.row;
if (tile.row !== rowToUpdate) return;
}
// Update trackers when colCount is exceeded
if (col + tile.colspan > colCount) {
col = 0; row++;
}
$.extend(tile, {
col : col,
row : row,
index : index,
x : col * gutterStep + (col * colSize),
y : row * gutterStep + (row * rowSize),
width : tile.colspan * colSize + ((tile.colspan - 1) * gutterStep),
height : tile.rowspan * rowSize
});
col += tile.colspan;
// If the tile being dragged is in bounds, set a new
// last index in case it goes out of bounds
if (tile.isDragging && tile.inBounds) {
tile.lastIndex = index;
}
if (newTile) {
// Clear the new tile flag
tile.newTile = false;
var from = {
autoAlpha : 0,
boxShadow : shadow1,
height : tile.height,
scale : 0,
width : tile.width
};
var to = {
autoAlpha : 1,
scale : 1,
zIndex : zIndex
}
timeline.fromTo(element, time, from, to, "reflow");
}
// Don't animate the tile that is being dragged and
// only animate the tiles that have changes
if (!tile.isDragging && (oldRow !== tile.row || oldCol !== tile.col)) {
var duration = newTile ? 0 : time;
// Boost the z-index for tiles that will travel over
// another tile due to a row change
if (oldRow !== tile.row) {
timeline.set(element, { zIndex: ++zIndex }, "reflow");
}
timeline.to(element, duration, {
x : tile.x,
y : tile.y,
onComplete : function() { tile.positioned = true; },
onStart : function() { tile.positioned = false; }
}, "reflow");
}
});
// If the row count has changed, change the height of the container
if (row !== rowCount) {
rowCount = row;
height = rowCount * gutterStep + (++row * rowSize);
timeline.to($list, 0.2, { height: height }, "reflow");
}
}
感谢您的帮助！