File size: 8,607 Bytes
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{
/*
var tile = new LF.TilePanel({ Selector: ".TileList .Tile" });
LF.Delegate.Add(tile.OnMovedTileEvent, tileMoved);
LF.Delegate.Add(tile.OnRequiredTileEvent, showEverything);
//fix footer
function tileMoved(params) {
$("#footer").css("margin-top", params.Height + 10);
}
function showEverything() {
if (pageIndex > $($(".TileList .Tile")[1]).attr("pageCount")) {
tile.Stop();
return;
}
if (pageUrlFormat) {
if ($CL.Portal.Config.IsLogin) {
var url = pageUrlFormat.replace("{PageIndex}", pageIndex).replace("{CustomerID}", $CL.SiteLogin.UserInfo().UserID);
} else {
var url = pageUrlFormat.replace("{PageIndex}", pageIndex).replace("{CustomerID}", 0);
}
$.ajax(
{
type: "GET",
url: url,
dataType: "text",
success: function (data) {
pageIndex++;
if (!data.IsEmpty()) {
$(".TileList").append(data);
tile.MoveTile();
bindTileMouseOverEvent();
bindAddCommentsEvent();
}
},
error: $CL.Config.CommonErrorMessage
});
}
}
*/
LF.TilePanel = function (options) {
///<param name="options.Selector">a object of tile, must JqueryObject, i.e ".TileList .Tile"</param>
///<param name="options.TileWidth">default is 230</param>
///<param name="options.TileWidthGap">default is 10</param>
///<param name="options.TileHeightGap">default is 15</param>
///<param name="options.MinWidth">default is 980</param>
if (options.Selector == null) {
throw new Error("must provide tile list");
}
if (options.TileWidth == null) {
options.TileWidth = 230;
}
if (options.TileWidthGap == null) {
options.TileWidthGap = 10;
}
if (options.TileHeightGap == null) {
options.TileHeightGap = 15;
}
if (options.MinWidth == null) {
options.MinWidth = 980;
}
var onMovedTileEvent = "onMovedTileEvent_" + window.Uuid();
var onRequiredTileEvent = "onRequiredTileEvent_" + window.Uuid();
var moveTileQueue = 0;
var prop = { Height: 0, Width: 0, HeightList: null };
var attachedScroll = false;
var noMoreTile = false;
function moveTile() {
if (moveTileQueue > 1) {
return;
// only one moveTile in queue allowed
}
moveTileQueue++;
start();
}
function start() {
var dWidth = Math.max($(window).width() - 10, options.MinWidth);
var maxColumn = Math.floor((dWidth + options.TileWidthGap) / (options.TileWidth + options.TileWidthGap));
var tileList = $(options.Selector);
maxColumn = Math.min(tileList.length, maxColumn);
var startLeft = (dWidth - (maxColumn * options.TileWidth + (maxColumn - 1) * options.TileWidthGap)) / 2;
var lowerHeight = new Array();
for (var i = 0; i < maxColumn; i++) {
lowerHeight.push(0);
}
function findLowest(list) {
if (!list) {
return {
Top: 0,
Column: 0
};
}
var lower = list[0];
var column = 0;
for (var i = 0; i < list.length; i++) {
if (lower > list[i]) {
column = i;
lower = list[i];
}
}
return {
Top: lower,
Column: column
};
}
function findHighest() {
var lower = lowerHeight[0];
var column = 0;
for (var i = 0; i < lowerHeight.length; i++) {
if (lower < lowerHeight[i]) {
column = i;
lower = lowerHeight[i];
}
}
return {
Top: lower,
Column: column
};
}
//first move, need set default position
var startPosition = findLowest(prop.HeightList);
tileList.each(
function () {
var item = $(this);
if (!item.attr("moved")) {
item.attr("moved", 1);
//item.hide();
item.css("left", startLeft + startPosition.Column * options.TileWidth + startPosition.Column * options.TileWidthGap);
item.css("top", startPosition.Top);
}
});
var animateComplete = 0;
tileList.each(
function () {
var item = $(this);
var lowest = findLowest(lowerHeight);
var newTop = lowest.Top + options.TileHeightGap;
var newLeft = startLeft + lowest.Column * options.TileWidth + lowest.Column * options.TileWidthGap;
lowerHeight[lowest.Column] = newTop + item.height();
item.css("left", newLeft);
item.css("top", newTop);
item.css("visibility", "visible");
item.animate({
top: newTop,
left: newLeft
}, 1000, function () {
item.show("slow");
animateComplete++;
if (animateComplete == tileList.length) {
if (moveTileQueue > 0) {
moveTileQueue--;
}
if (moveTileQueue == 0) {
var columns = totalColumn();
prop = { Height: findHighest().Top, Width: columns * options.TileWidth + (columns - 1) * options.TileWidthGap, HeightList: lowerHeight };
Web.Debug.Log("TilePanel:onMovedTileEvent - Height:" + prop.Height + " Width:" + prop.Width);
LF.Delegate.Call(onMovedTileEvent, prop);
if (!attachedScroll && !noMoreTile) {
$(window).scroll(scrollEvent);
attachedScroll = true;
}
scrollEvent();
} else {
//still have one tile in queue, move it again before call onMovedTileEvent;
start();
}
}
});
}
);
function totalColumn() {
// get total totalColumn;
var total = 0;
for (var i = 0; i < lowerHeight.length; i++) {
if (lowerHeight[i] != 0) {
total++;
}
}
return total;
}
}
function isFull(heightList) {
if (heightList) {
for (var i = 0; i < heightList.length; i++) {
var lowerHeight = heightList[i];
if ((($(window).height() + $(window).scrollTop()) - lowerHeight) > 100) {
return false;
}
}
}
return true;
}
var timeOutInt;
function adjustTile() {
clearTimeout(timeOutInt);
setTimeout(moveTile, 100);
}
function init() {
$(window).resize(adjustTile);
moveTile();
}
function scrollEvent() {
//var reachBottom = ($(document).height() - ($(window).height() + $(window).scrollTop())) < 100;
var full = isFull(prop.HeightList);
if (!full) {
Web.Debug.Log("TilePanel:I am reach bottom");
$(window).unbind("scroll", scrollEvent);
attachedScroll = false;
LF.Delegate.Call(onRequiredTileEvent, prop);
}
}
function stop() {
Web.Debug.Log("Stop scroll event,since no more tile coming");
$(window).unbind("scroll", scrollEvent);
noMoreTile = true;
}
init();
return {
OnMovedTileEvent: onMovedTileEvent,
OnRequiredTileEvent: onRequiredTileEvent,
MoveTile: moveTile,
Stop: stop
};
}
} |