526 lines
14 KiB
HTML
526 lines
14 KiB
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<title>Resizable & Snap Window with Live Snap & Restore on Grab</title>
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<style>
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body, html {
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margin: 0; height: 100%; overflow: hidden; user-select: none;
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background: #f0f2f5;
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font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
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}
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.customWindow {
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position: fixed;
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left: 100px;
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top: 100px;
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width: 400px;
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height: 300px;
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background: rgba(255, 255, 255, 0.85);
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border-radius: 12px;
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box-shadow: 0 10px 30px rgba(0,0,0,0.12);
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border: 1px solid rgba(0,0,0,0.1);
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box-sizing: border-box;
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display: flex;
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flex-direction: column;
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backdrop-filter: saturate(180%) blur(10px);
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-webkit-backdrop-filter: saturate(180%) blur(10px);
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transition: box-shadow 0.3s ease;
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}
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.customWindow:hover {
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box-shadow: 0 14px 45px rgba(0,0,0,0.18);
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}
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.customWindow .titlebar {
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height: 32px;
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background: linear-gradient(90deg, #4b6cb7, #182848);
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color: white;
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cursor: grab;
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user-select: none;
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padding: 6px 14px;
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font-weight: 600;
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font-size: 14px;
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line-height: 20px;
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border-top-left-radius: 12px;
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border-top-right-radius: 12px;
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display: flex;
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align-items: center;
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box-shadow: inset 0 -1px 0 rgba(255,255,255,0.15);
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}
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.customWindow .titlebar:active {
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cursor: grabbing;
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}
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.customWindow .titlebar .buttons {
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margin-left: auto;
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display: flex;
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gap: 6px;
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}
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.customWindow .titlebar button {
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background: transparent;
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border: none;
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color: white;
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font-weight: 700;
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font-size: 16px;
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width: 28px;
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height: 24px;
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line-height: 20px;
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cursor: pointer;
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user-select: none;
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border-radius: 4px;
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transition: background-color 0.2s ease;
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display: flex;
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align-items: center;
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justify-content: center;
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padding: 0;
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}
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.customWindow .titlebar button:hover {
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background: rgba(255,255,255,0.2);
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}
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.customWindow .titlebar button:active {
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background: rgba(255,255,255,0.35);
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}
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.customWindow .content {
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flex-grow: 1;
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position: relative;
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overflow: hidden;
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height: calc(100% - 28px); /* 28px is titlebar height */
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}
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canvas {
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width: 100%;
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height: 100%;
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display: block;
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border-radius: 8px;
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background: #fff;
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box-shadow: inset 0 0 6px rgba(0,0,0,0.05);
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}
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/* Resizer handles */
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.resizer {
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position: absolute;
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background: transparent;
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z-index: 10;
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}
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.resizer.n, .resizer.s {
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height: 8px;
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left: 0;
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right: 0;
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cursor: ns-resize;
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}
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.resizer.e, .resizer.w {
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width: 8px;
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top: 0;
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bottom: 0;
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cursor: ew-resize;
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}
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.resizer.nw, .resizer.ne, .resizer.sw, .resizer.se {
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width: 12px;
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height: 12px;
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background: transparent;
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cursor: nwse-resize;
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z-index: 20;
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}
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.resizer.n { top: -4px; }
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.resizer.s { bottom: -4px; }
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.resizer.e { right: -4px; }
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.resizer.w { left: -4px; }
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.resizer.nw { top: -6px; left: -6px; cursor: nwse-resize; }
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.resizer.ne { top: -6px; right: -6px; cursor: nesw-resize; }
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.resizer.sw { bottom: -6px; left: -6px; cursor: nesw-resize; }
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.resizer.se { bottom: -6px; right: -6px; cursor: nwse-resize; }
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</style>
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</head>
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<body>
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<div class="customWindow">
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<div class="titlebar">
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Drag Me
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<div class="buttons">
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<button id="btnMaximize" title="Maximize">⬜</button>
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<button id="btnClose" title="Close">×</button>
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</div>
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</div>
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<div class="content">
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<canvas id="canvas"></canvas>
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</div>
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<!-- Resizers -->
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<div class="resizer n"></div>
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<div class="resizer e"></div>
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<div class="resizer s"></div>
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<div class="resizer w"></div>
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<div class="resizer nw"></div>
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<div class="resizer ne"></div>
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<div class="resizer sw"></div>
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<div class="resizer se"></div>
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</div>
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<script>
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const customWindow = document.querySelector(".customWindow");
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const canvas = document.getElementById("canvas");
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const titlebar = customWindow.querySelector(".titlebar");
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// Store old position/size for restore after unsnap or maximize
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let isSnapped = false;
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let savedPosition = null;
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// Maximize state
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let isMaximized = false;
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let savedBeforeMaximize = null;
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// Drag and resize state
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let isDragging = false;
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let dragType = null; // 'move' or 'resize'
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let currentResizer = null;
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let startX = 0;
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let startY = 0;
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let startWidth = 0;
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let startHeight = 0;
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let startLeft = 0;
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let startTop = 0;
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// Save current window state before snapping or maximizing
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function saveWindowState() {
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savedPosition = {
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left: customWindow.offsetLeft,
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top: customWindow.offsetTop,
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width: customWindow.offsetWidth,
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height: customWindow.offsetHeight
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};
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}
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// Restore window state after unsnap or restore from maximize
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function restoreWindowState() {
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if (savedPosition) {
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customWindow.style.left = savedPosition.left + "px";
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customWindow.style.top = savedPosition.top + "px";
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customWindow.style.width = savedPosition.width + "px";
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customWindow.style.height = savedPosition.height + "px";
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savedPosition = null;
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isSnapped = false;
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}
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}
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// Resize canvas to fill container
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function resizeCanvas() {
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const style = getComputedStyle(customWindow);
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const w = parseInt(style.width, 10);
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const h = parseInt(style.height, 10);
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canvas.width = w;
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canvas.height = h;
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}
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// Snap window if near edges/corners (called live during drag/resize)
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function snapWindow(mouseX, mouseY) {
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if (isMaximized) return; // no snap when maximized
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const snapMargin = 30;
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const vw = window.innerWidth;
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const vh = window.innerHeight;
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const nearLeft = mouseX <= snapMargin;
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const nearRight = mouseX >= vw - snapMargin;
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const nearTop = mouseY <= snapMargin;
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const nearBottom = mouseY >= vh - snapMargin;
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if (!isSnapped && (nearLeft || nearRight || nearTop || nearBottom)) {
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saveWindowState();
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isSnapped = true;
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} else if (!nearLeft && !nearRight && !nearTop && !nearBottom && isSnapped) {
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// unsnap if moved out of snap zone
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restoreWindowState();
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return;
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}
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if (!isSnapped) return; // nothing to snap
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if (nearTop && nearLeft) {
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// Top-left quarter
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customWindow.style.left = "0px";
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customWindow.style.top = "0px";
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customWindow.style.width = Math.floor(vw / 2) + "px";
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customWindow.style.height = Math.floor(vh / 2) + "px";
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} else if (nearTop && nearRight) {
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// Top-right quarter
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customWindow.style.left = Math.floor(vw / 2) + "px";
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customWindow.style.top = "0px";
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customWindow.style.width = Math.floor(vw / 2) + "px";
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customWindow.style.height = Math.floor(vh / 2) + "px";
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} else if (nearBottom && nearLeft) {
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// Bottom-left quarter
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customWindow.style.left = "0px";
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customWindow.style.top = Math.floor(vh / 2) + "px";
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customWindow.style.width = Math.floor(vw / 2) + "px";
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customWindow.style.height = Math.floor(vh / 2) + "px";
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} else if (nearBottom && nearRight) {
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// Bottom-right quarter
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customWindow.style.left = Math.floor(vw / 2) + "px";
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customWindow.style.top = Math.floor(vh / 2) + "px";
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customWindow.style.width = Math.floor(vw / 2) + "px";
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customWindow.style.height = Math.floor(vh / 2) + "px";
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} else if (nearTop) {
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// Top half
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customWindow.style.left = "0px";
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customWindow.style.top = "0px";
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customWindow.style.width = vw + "px";
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customWindow.style.height = Math.floor(vh / 2) + "px";
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} else if (nearBottom) {
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// Bottom half
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customWindow.style.left = "0px";
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customWindow.style.top = Math.floor(vh / 2) + "px";
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customWindow.style.width = vw + "px";
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customWindow.style.height = Math.floor(vh / 2) + "px";
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} else if (nearLeft) {
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// Left half
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customWindow.style.left = "0px";
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customWindow.style.top = "0px";
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customWindow.style.width = Math.floor(vw / 2) + "px";
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customWindow.style.height = vh + "px";
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} else if (nearRight) {
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// Right half
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customWindow.style.left = Math.floor(vw / 2) + "px";
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customWindow.style.top = "0px";
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customWindow.style.width = Math.floor(vw / 2) + "px";
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customWindow.style.height = vh + "px";
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}
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resizeCanvas();
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}
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// Drag move handler
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function onDragMove(e) {
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e.preventDefault();
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if (!isDragging) return;
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const dx = e.clientX - startX;
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const dy = e.clientY - startY;
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if (dragType === "move") {
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let newLeft = startLeft + dx;
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let newTop = startTop + dy;
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newLeft = Math.max(0, Math.min(window.innerWidth - customWindow.offsetWidth, newLeft));
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newTop = Math.max(0, Math.min(window.innerHeight - customWindow.offsetHeight, newTop));
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customWindow.style.left = newLeft + "px";
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customWindow.style.top = newTop + "px";
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snapWindow(e.clientX, e.clientY);
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} else if (dragType === "resize") {
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let newLeft = startLeft;
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let newTop = startTop;
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let newWidth = startWidth;
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let newHeight = startHeight;
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switch (currentResizer) {
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case "e": newWidth = startWidth + dx; break;
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case "w": newWidth = startWidth - dx; newLeft = startLeft + dx; break;
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case "s": newHeight = startHeight + dy; break;
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case "n": newHeight = startHeight - dy; newTop = startTop + dy; break;
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case "ne": newHeight = startHeight - dy; newTop = startTop + dy;
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newWidth = startWidth + dx; break;
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case "nw": newWidth = startWidth - dx; newLeft = startLeft + dx;
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newHeight = startHeight - dy; newTop = startTop + dy; break;
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case "se": newWidth = startWidth + dx;
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newHeight = startHeight + dy; break;
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case "sw": newWidth = startWidth - dx; newLeft = startLeft + dx;
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newHeight = startHeight + dy; break;
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}
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const minWidth = 150;
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const minHeight = 100;
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if (newWidth < minWidth) {
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if (currentResizer.includes("w")) {
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newLeft -= (minWidth - newWidth);
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}
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newWidth = minWidth;
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}
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if (newHeight < minHeight) {
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if (currentResizer.includes("n")) {
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newTop -= (minHeight - newHeight);
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}
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newHeight = minHeight;
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}
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if (newLeft < 0) {
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if (currentResizer.includes("w")) {
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newWidth += newLeft;
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}
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newLeft = 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (newTop < 0) {
|
|||
|
|
if (currentResizer.includes("n")) {
|
|||
|
|
newHeight += newTop;
|
|||
|
|
}
|
|||
|
|
newTop = 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (newLeft + newWidth > window.innerWidth) {
|
|||
|
|
if (currentResizer.includes("e")) {
|
|||
|
|
newWidth = window.innerWidth - newLeft;
|
|||
|
|
} else {
|
|||
|
|
newLeft = window.innerWidth - newWidth;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (newTop + newHeight > window.innerHeight) {
|
|||
|
|
if (currentResizer.includes("s")) {
|
|||
|
|
newHeight = window.innerHeight - newTop;
|
|||
|
|
} else {
|
|||
|
|
newTop = window.innerHeight - newHeight;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
customWindow.style.left = newLeft + "px";
|
|||
|
|
customWindow.style.top = newTop + "px";
|
|||
|
|
customWindow.style.width = newWidth + "px";
|
|||
|
|
customWindow.style.height = newHeight + "px";
|
|||
|
|
|
|||
|
|
resizeCanvas();
|
|||
|
|
|
|||
|
|
snapWindow(e.clientX, e.clientY);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Drag end handler
|
|||
|
|
function onDragEnd(e) {
|
|||
|
|
isDragging = false;
|
|||
|
|
dragType = null;
|
|||
|
|
currentResizer = null;
|
|||
|
|
|
|||
|
|
document.removeEventListener("mousemove", onDragMove);
|
|||
|
|
document.removeEventListener("mouseup", onDragEnd);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Titlebar mouse down for dragging
|
|||
|
|
function onTitlebarMouseDown(e) {
|
|||
|
|
e.preventDefault();
|
|||
|
|
dragType = "move";
|
|||
|
|
|
|||
|
|
let offsetX = e.clientX - customWindow.offsetLeft;
|
|||
|
|
let offsetY = e.clientY - customWindow.offsetTop;
|
|||
|
|
|
|||
|
|
if (isSnapped) {
|
|||
|
|
restoreWindowState();
|
|||
|
|
|
|||
|
|
// Recompute start position after restoring to maintain offset
|
|||
|
|
startX = e.clientX;
|
|||
|
|
startY = e.clientY;
|
|||
|
|
|
|||
|
|
startLeft = e.clientX - 100;
|
|||
|
|
startTop = e.clientY - offsetY;
|
|||
|
|
|
|||
|
|
customWindow.style.left = startLeft + "px";
|
|||
|
|
customWindow.style.top = startTop + "px";
|
|||
|
|
} else {
|
|||
|
|
startX = e.clientX;
|
|||
|
|
startY = e.clientY;
|
|||
|
|
|
|||
|
|
startLeft = customWindow.offsetLeft;
|
|||
|
|
startTop = customWindow.offsetTop;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
isDragging = true;
|
|||
|
|
|
|||
|
|
document.addEventListener("mousemove", onDragMove);
|
|||
|
|
document.addEventListener("mouseup", onDragEnd);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
// Resizer mouse down for resizing
|
|||
|
|
function onResizerMouseDown(e) {
|
|||
|
|
e.preventDefault();
|
|||
|
|
|
|||
|
|
startX = e.clientX;
|
|||
|
|
startY = e.clientY;
|
|||
|
|
startLeft = customWindow.offsetLeft;
|
|||
|
|
startTop = customWindow.offsetTop;
|
|||
|
|
startWidth = customWindow.offsetWidth;
|
|||
|
|
startHeight = customWindow.offsetHeight;
|
|||
|
|
|
|||
|
|
isDragging = true;
|
|||
|
|
dragType = "resize";
|
|||
|
|
currentResizer = e.target.classList[1]; // e.g. 'e', 'nw', etc.
|
|||
|
|
|
|||
|
|
document.addEventListener("mousemove", onDragMove);
|
|||
|
|
document.addEventListener("mouseup", onDragEnd);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Maximize window function
|
|||
|
|
function maximizeWindow() {
|
|||
|
|
if (isMaximized) return;
|
|||
|
|
|
|||
|
|
savedBeforeMaximize = {
|
|||
|
|
left: customWindow.offsetLeft,
|
|||
|
|
top: customWindow.offsetTop,
|
|||
|
|
width: customWindow.offsetWidth,
|
|||
|
|
height: customWindow.offsetHeight
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
customWindow.style.left = "0px";
|
|||
|
|
customWindow.style.top = "0px";
|
|||
|
|
customWindow.style.width = window.innerWidth + "px";
|
|||
|
|
customWindow.style.height = window.innerHeight + "px";
|
|||
|
|
|
|||
|
|
resizeCanvas();
|
|||
|
|
|
|||
|
|
isMaximized = true;
|
|||
|
|
isSnapped = false;
|
|||
|
|
savedPosition = null;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Restore from maximize
|
|||
|
|
function restoreFromMaximize() {
|
|||
|
|
if (!isMaximized || !savedBeforeMaximize) return;
|
|||
|
|
|
|||
|
|
customWindow.style.left = savedBeforeMaximize.left + "px";
|
|||
|
|
customWindow.style.top = savedBeforeMaximize.top + "px";
|
|||
|
|
customWindow.style.width = savedBeforeMaximize.width + "px";
|
|||
|
|
customWindow.style.height = savedBeforeMaximize.height + "px";
|
|||
|
|
|
|||
|
|
resizeCanvas();
|
|||
|
|
|
|||
|
|
isMaximized = false;
|
|||
|
|
savedBeforeMaximize = null;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Close window function
|
|||
|
|
function closeWindow() {
|
|||
|
|
customWindow.style.display = "none";
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Attach event listeners
|
|||
|
|
titlebar.addEventListener("mousedown", onTitlebarMouseDown);
|
|||
|
|
|
|||
|
|
const resizers = customWindow.querySelectorAll(".resizer");
|
|||
|
|
resizers.forEach(function(resizer) {
|
|||
|
|
resizer.addEventListener("mousedown", onResizerMouseDown);
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
const btnClose = document.getElementById("btnClose");
|
|||
|
|
const btnMaximize = document.getElementById("btnMaximize");
|
|||
|
|
|
|||
|
|
btnClose.addEventListener("click", closeWindow);
|
|||
|
|
btnMaximize.addEventListener("click", function() {
|
|||
|
|
if (isMaximized) {
|
|||
|
|
restoreFromMaximize();
|
|||
|
|
} else {
|
|||
|
|
maximizeWindow();
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
// Initial canvas sizing
|
|||
|
|
resizeCanvas();
|
|||
|
|
</script>
|
|||
|
|
</body>
|
|||
|
|
</html>
|