node-webkit无边框窗口用纯JS实现拖动改变大小-白红宇

node-webkit无边框窗口用纯JS实现拖动改变大小

阅读量：4916 次

发布时间：2019-06-11

本文共 6236 字，大约阅读时间需要 20 分钟。

<!DOCTYPE html>

<head>

$(function () {

var gui = require('nw.gui');

var sizeFlag = true;

var mouseDownFlag = false;

var oldPoint = {};

var dragEventFlag = {};

var sizeSmall = function () {

$("#frameBody").height(600 - 40);

gui.Window.get().moveTo(screen.availWidth / 2 - 400, screen.availHeight / 2 - 300);

gui.Window.get().resizeTo(800, 600);

sizeFlag = false;

}

var sizeMax = function () {

$("#frameBody").height(screen.availHeight - 40);

gui.Window.get().moveTo(0, 0)

gui.Window.get().resizeTo(screen.availWidth, screen.availHeight);

sizeFlag = true;

}

var dragEvent = function (e) {

if (dragEventFlag.leftTop) {

var a = e.pageX - oldPoint.x;

var b = e.pageY - oldPoint.y;

gui.Window.get().moveBy(a, b);

gui.Window.get().resizeBy(0 - a, 0 - b);

$("#frameBody").height($("#frameBody").height() - b);

$("#frameBody").width($("#frameBody").width() - a);

return;

}

if (dragEventFlag.rightBottom) {

var a = e.pageX - oldPoint.x;

var b = e.pageY - oldPoint.y;

gui.Window.get().resizeBy(a, b);

$("#frameBody").height($("#frameBody").height() + b);

$("#frameBody").width($("#frameBody").width() + a);

oldPoint.x = e.pageX;

oldPoint.y = e.pageY;

$("#a").html(a);

return;

}

if (dragEventFlag.rightTop) {

var a = e.pageX - oldPoint.x;

var b = e.pageY - oldPoint.y;

gui.Window.get().moveBy(0, b);

gui.Window.get().resizeBy(a, 0-b);

$("#frameBody").height($("#frameBody").height() - b);

$("#frameBody").width($("#frameBody").width() + a);

oldPoint.x = e.pageX;

$("#a").html(a);

return;

}

if (dragEventFlag.leftBottom) {

var a = e.pageX - oldPoint.x;

var b = e.pageY - oldPoint.y;

gui.Window.get().moveBy(a, 0);

gui.Window.get().resizeBy(0-a, b);

$("#frameBody").height($("#frameBody").height() + b);

$("#frameBody").width($("#frameBody").width() - a);

oldPoint.y = e.pageY;

$("#a").html(a);

return;

}

if (dragEventFlag.left) {

var a = e.pageX - oldPoint.x;

gui.Window.get().moveBy(a, 0);

gui.Window.get().resizeBy(0 - a, 0);

$("#a").html(a);

}

if (dragEventFlag.right) {

var a = e.pageX - oldPoint.x;

gui.Window.get().resizeBy(a, 0);

$("#a").html(a);

oldPoint.x = e.pageX;

oldPoint.y = e.pageY;

}

if (dragEventFlag.top) {

var a = e.pageY - oldPoint.y;

gui.Window.get().moveBy(0, a);

gui.Window.get().resizeBy(0, 0 - a);

$("#frameBody").height($("#frameBody").height() - a);

$("#a").html(a);

}

if (dragEventFlag.bottom) {

var a = e.pageY - oldPoint.y;

gui.Window.get().resizeBy(0, a);

$("#frameBody").height($("#frameBody").height() + a);

$("#a").html(a);

oldPoint.x = e.pageX;

oldPoint.y = e.pageY;

}

$(document).mousemove(function (e) {

if (mouseDownFlag) {

dragEvent(e);

return;

}

if ((e.pageX <= 4 && e.pageY <= 4) || (e.pageX >= ($(document).width() - 4) && e.pageY >= ($(document).height() - 4))) {

$("body").css("cursor", "nw-resize");

return;

}

if ((e.pageX >= ($(document).width() - 4) && e.pageY <= 4) || (e.pageX <= 4 && e.pageY >= ($(document).height() - 4))) {

$("body").css("cursor", "ne-resize");

return;

}

if (e.pageX <= 4 || e.pageX >= ($(document).width() - 4)) {

$("body").css("cursor", "w-resize");

}

else if (e.pageY <= 4 || e.pageY >= ($(document).height() - 4)) {

$("body").css("cursor", "s-resize");

}

else {

$("body").css("cursor", "initial");

}

});

$(document).mousedown(function (e) {

oldPoint.x = e.pageX;

oldPoint.y = e.pageY;

mouseDownFlag = true;

if (e.pageX <= 4 && e.pageY <= 4) {

dragEventFlag.leftTop = true;

return;

}

if (e.pageX >= ($(document).width() - 4) && e.pageY >= ($(document).height() - 4)) {

dragEventFlag.rightBottom = true;

return;

}

if (e.pageX >= ($(document).width() - 4) && e.pageY <= 4) {

dragEventFlag.rightTop = true;

return;

}

if (e.pageX <= 4 && e.pageY >= ($(document).height() - 4)) {

dragEventFlag.leftBottom = true;

return;

}

if (oldPoint.x <= 4) {

dragEventFlag.left = true;

return;

}

if (oldPoint.x >= ($(document).width() - 4)) {

dragEventFlag.right = true;

return;

}

if (oldPoint.y <= 4) {

dragEventFlag.top = true;

return;

}

if (oldPoint.y >= ($(document).height() - 4)) {

dragEventFlag.bottom = true;

return;

}

});

$(document).mouseup(function () {

mouseDownFlag = false;

dragEventFlag.leftTop = false;

dragEventFlag.rightBottom = false;

dragEventFlag.leftBottom = false;

dragEventFlag.rightTop = false;

dragEventFlag.left = false;

dragEventFlag.right = false;

dragEventFlag.top = false;

dragEventFlag.bottom = false;

});

$("#resizeBtn").click(function () {

if (sizeFlag) {

sizeSmall();

} else {

sizeMax();

}

});

$("#minisizeBtn").click(function () {

gui.Window.get().minimize();

})

$("#devToolBtn").click(function () {

gui.Window.get().showDevTools();

});

$("#refreshBtn").click(function () {

window.location.reload();

});

$("#cancelBtn").click(function () {

window.close();

});

$("#toolBtns i").hover(function () {

$(this).css("color", "red");

}, function () {

$(this).css("color", "");

});

$("#closeBtn").click(function () {

gui.Window.get().close();

});

sizeMax();

});

</script>

</head>

UTMP

</h3>

</div>

asdfasfd

</div>

</body>

</html>

转载于:https://www.cnblogs.com/liulun/p/3573364.html

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