Ich habe heute den ganzen Tag dieses JQuery-Plug-in geschrieben:
Sie können Divs per Drag-and-Drop verschieben, um ihre Größe zu ändern.
(Funktion ($) {
$.fn.dragDivResize = function () {
var deltaX, deltaY, _startX, _startY;
var resizeW, resizeH;
Var-Größe = 20;
var minSize = 10;
var scroll = getScrollOffsets();
var _this = this;
for (var i = 0; i < _this.length; i ) {
var target = this[i];
$(target).on("mouseover mousemove", overHandler);
}
Funktion outHandler() {
for (var i = 0; i < _this.length; i ) {
target.style.outline = "none";
}
document.body.style.cursor = "default";
}
Funktion overHandler(event) {
target = event.target || event.srcElement;
var startX = event.clientX scroll.x;
var startY = event.clientY scroll.y;
var w = $(target).width();
var h = $(target).height();
_startX = parseInt(startX);
_startY = parseInt(startY);
if ((0 < target.offsetLeft w - _startX && target.offsetLeft w - _startX < size) || (0 < target.offsetTop h - _startY && target.offsetTop h - _startY < size)) {
target.style.outline = "2px gestrichelt #333";
if ((0 > target.offsetLeft w - _startX || target.offsetLeft w - _startX > size) && 0 < target.offsetTop h - _startY && target.offsetTop h - _startY < size) {
resizeW = false;
resizeH = true;
document.body.style.cursor = "s-resize";
}
if (0 < target.offsetLeft w - _startX && target.offsetLeft w - _startX < size && (0 > target.offsetTop h - _startY || target.offsetTop h - _startY > size)) {
resizeW = true;
resizeH = false;
document.body.style.cursor = "w-resize";
}
if (0 < target.offsetLeft w - _startX && target.offsetLeft w - _startX < size && 0 < target.offsetTop h - _startY && target.offsetTop h - _startY < size) {
resizeW = true;
resizeH = true;
document.body.style.cursor = "se-resize";
}
$(target).on('mousedown', downHandler);
} sonst {
resizeW = false;
resizeH = false;
$(target).off('mousedown', downHandler);
}
}
Funktion downHandler(event) {
target = event.target || event.srcElement;
var startX = event.clientX scroll.x;
var startY = event.clientY scroll.y;
_startX = parseInt(startX);
_startY = parseInt(startY);
if (document.addEventListener) {
document.addEventListener("mousemove", moveHandler, true);
document.addEventListener("mouseup", upHandler, true);
} else if (document.attachEvent) {
target.setCapture();
target.attachEvent("onlosecapeture", upHandler);
target.attachEvent("onmouseup", upHandler);
target.attachEvent("onmousemove", moveHandler);
}
if (event.stopPropagation) {
event.stopPropagation();
} sonst {
event.cancelBubble = true;
}
if (event.preventDefault) {
event.preventDefault();
} sonst {
event.returnValue = false;
}
}
Funktion moveHandler(e) {
if (!e) e = window.event;
var w, h;
var startX = parseInt(e.clientX scroll.x);
var startY = parseInt(e.clientY scroll.y);
Ziel = Ziel || e.target || e.srcElement;
if (target == document.body) {
zurück;
}
if (resizeW) {
deltaX = startX - _startX;
w = $(target).width() deltaX < Mindestgröße? minSize : $(target).width() deltaX;
target.style.width = w "px";
_startX = startX;
}
if (resizeH) {
deltaY = startY - _startY;
h = $(target).height() deltaY < Mindestgröße? minSize : $(target).height() deltaY;
target.style.height = h "px";
_startY = startY;
}
if (e.stopPropagation) {
e.stopPropagation();
} sonst {
e.cancelBubble = true;
}
}
Funktion upHandler(e) {
if (!e) {
e = window.event;
}
resizeW = false;
resizeH = false;
target = e.target || e.srcElement;
$(target).on("mouseout", outHandler);
if (document.removeEventListener) {
document.removeEventListener("mousemove", moveHandler, true);
document.removeEventListener("mouseup", upHandler, true);
} else if (document.detachEvent) {
target.detachEvent("onlosecapeture", upHandler);
target.detachEvent("onmouseup", upHandler);
target.detachEvent("onmousemove", moveHandler);
target.releaseCapture();
}
if (e.stopPropagation) {
e.stopPropagation();
} sonst {
e.cancelBubble = true;
}
}
Funktion getScrollOffsets(w) {
w = w || Fenster;
if (w.pageXOffset != null) {
return { x: w.pageXOffset, y: w.pageYOffset };
}
var d = w.document;
if (document.compatMode == "CSS1Compat") {
return { x: d.documentElement.scrollLeft, y: d.documentElement.scrollTop };
}
return { x: d.body.scrollLeft, y: d.body.scrollTop };
}
}
}(jQuery));
jQuery("div").dragDivResize();
Notieren Sie die Ergebnisse der heutigen Wehen. Es kann sein, dass Sie mich korrigieren.
Das Obige ist der gesamte Inhalt dieses Artikels. Ich hoffe, er gefällt Ihnen allen.
