first draft of generic popup and menu views
This commit is contained in:
Bruno Windels
parent
6fd10b63e5
commit
9bb521986b
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@ -0,0 +1,378 @@
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<style type="text/css">
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body {
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margin: 0;
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padding: 0;
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height: 100%;
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overflow: hidden;
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}
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.container {
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display: grid;
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grid-template: "left middle" 1fr /
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200px 1fr;
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height: 100vh;
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}
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.container .left {
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display: grid;
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grid-template:
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"welcome" auto
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"rooms" 1fr /
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1fr;
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min-height: 0;
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}
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.container .middle {
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display: grid;
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grid-template:
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"header" auto
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"timeline" 1fr
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"composer" auto /
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1fr;
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min-height: 0;
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position: relative;
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}
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.left { grid-area: left;}
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.left p {
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grid-area welcome;
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display: flex;
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}
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.left ul {
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grid-area: rooms;
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min-height: 0;
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overflow-y: auto;
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}
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.middle { grid-area: middle;}
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.middle .header { grid-area: header;}
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.middle .timeline {
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grid-area: timeline;
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min-height: 0;
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overflow-y: auto;
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}
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.middle .composer {
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grid-area: composer;
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}
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.header {
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display: flex;
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}
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.header h2 {
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flex: 1;
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}
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.composer {
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display: flex;
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}
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.composer input {
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display: block;
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flex: 1;
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}
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.menu {
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position: absolute;
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border-radius: 8px;
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box-shadow: 2px 2px 10px rgba(0,0,0,0.5);
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padding: 16px;
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background-color: white;
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z-index: 1;
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list-style: none;
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margin: 0;
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}
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</style>
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</head>
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<body>
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<div class="container">
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<div class="left">
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<p>Welcome!<button>⋮</button></p>
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<ul>
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<li>Room xyz <button>⋮</button></li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz <button>⋮</button></li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz</li>
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<li>Room xyz <button>⋮</button></li>
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</ul>
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</div>
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<div class="middle">
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<div class="header">
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<h2>Room xyz</h2>
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<button>⋮</button>
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</div>
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<ul class="timeline">
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<li>Message abc</li>
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<li>Message abc <button>⋮</button></li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc <button>⋮</button></li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc</li>
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<li>Message abc <button>⋮</button></li>
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</ul>
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<div class="composer">
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<input type="text" name="">
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<button>⋮</button>
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</div>
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</div>
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</div>
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<script type="text/javascript">
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let menu;
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function createMenu(options) {
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const menu = document.createElement("ul");
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menu.className = "menu";
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for (const o of options) {
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const li = document.createElement("li");
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li.innerText = o;
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menu.appendChild(li);
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}
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return menu;
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}
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function showMenu(evt) {
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if (menu) {
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menu = menu.close();
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} else if (evt.target.tagName.toLowerCase() === "button") {
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menu = showPopup(evt.target, createMenu(["Send file", "Save contact", "Send picture", "Foo the bar"]), {
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horizontal: {
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relativeTo: "end",
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align: "start",
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after: 0,
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},
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vertical: {
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relativeTo: "end",
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align: "end",
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after: 10,
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}
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});
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}
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}
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function showMenuInScroller(evt) {
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if (!menu && evt.target.tagName.toLowerCase() === "button") {
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evt.stopPropagation();
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menu = showPopup(evt.target, createMenu(["Show reactions", "Share"]), {
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horizontal: {
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relativeTo: "start",
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align: "end",
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after: 10,
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},
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vertical: {
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relativeTo: "start",
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align: "center",
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}
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});
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}
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}
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document.body.addEventListener("click", showMenu, false);
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document.querySelector(".middle ul").addEventListener("click", showMenuInScroller, false);
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document.querySelector(".left ul").addEventListener("click", showMenuInScroller, false);
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function showPopup(target, popup, arrangement) {
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targetAxes = elementToAxes(target);
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if (!arrangement) {
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arrangement = getAutoArrangement(targetAxes);
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}
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target.offsetParent.appendChild(popup);
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const popupAxes = elementToAxes(popup);
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const scrollerAxes = elementToAxes(findScrollParent(target));
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const offsetParentAxes = elementToAxes(target.offsetParent);
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function reposition() {
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if (scrollerAxes && !isVisibleInScrollParent(targetAxes.vertical, scrollerAxes.vertical)) {
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popupObj.close();
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}
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applyArrangement(
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popupAxes.vertical,
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targetAxes.vertical,
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offsetParentAxes.vertical,
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scrollerAxes?.vertical,
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arrangement.vertical
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);
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applyArrangement(
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popupAxes.horizontal,
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targetAxes.horizontal,
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offsetParentAxes.horizontal,
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scrollerAxes?.horizontal,
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arrangement.horizontal
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);
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}
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reposition();
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document.body.addEventListener("scroll", reposition, true);
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const popupObj = {
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close() {
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document.body.removeEventListener("scroll", reposition, true);
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popup.remove();
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}
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};
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return popupObj;
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}
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function elementToAxes(element) {
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if (element) {
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return {
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horizontal: new HorizontalAxis(element),
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vertical: new VerticalAxis(element),
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element
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};
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}
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}
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function findScrollParent(el) {
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let parent = el;
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do {
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parent = parent.parentElement;
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if (parent.scrollHeight > parent.clientHeight) {
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return parent;
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}
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} while (parent !== el.offsetParent);
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}
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function isVisibleInScrollParent(targetAxis, scrollerAxis) {
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// clipped at start?
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if ((targetAxis.offsetStart + targetAxis.clientSize) < (
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scrollerAxis.offsetStart +
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scrollerAxis.scrollOffset
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)) {
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return false;
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}
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// clipped at end?
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if (targetAxis.offsetStart > (
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scrollerAxis.offsetStart +
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scrollerAxis.clientSize +
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scrollerAxis.scrollOffset
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)) {
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return false;
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}
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return true;
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}
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function applyArrangement(elAxis, targetAxis, offsetParentAxis, scrollerAxis, {relativeTo, align, before, after}) {
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if (relativeTo === "end") {
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let end = offsetParentAxis.clientSize - targetAxis.offsetStart;
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if (align === "end") {
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end -= elAxis.offsetSize;
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} else if (align === "center") {
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end -= ((elAxis.offsetSize / 2) - (targetAxis.offsetSize / 2));
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}
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if (typeof before === "number") {
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end += before;
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} else if (typeof after === "number") {
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end -= (targetAxis.offsetSize + after);
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}
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elAxis.end = end;
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} else if (relativeTo === "start") {
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let scrollOffset = scrollerAxis?.scrollOffset || 0;
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let start = targetAxis.offsetStart - scrollOffset;
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if (align === "start") {
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start -= elAxis.offsetSize;
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} else if (align === "center") {
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start -= ((elAxis.offsetSize / 2) - (targetAxis.offsetSize / 2));
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}
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if (typeof before === "number") {
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start -= before;
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} else if (typeof after === "number") {
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start += (targetAxis.offsetSize + after);
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}
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elAxis.start = start;
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} else {
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throw new Error("unknown relativeTo: " + relativeTo);
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}
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}
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class HorizontalAxis {
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constructor(el) {
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this.element = el;
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}
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get scrollOffset() {return this.element.scrollLeft;}
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get clientSize() {return this.element.clientWidth;}
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get offsetSize() {return this.element.offsetWidth;}
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get offsetStart() {return this.element.offsetLeft;}
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set start(value) {this.element.style.left = `${value}px`;}
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set end(value) {this.element.style.right = `${value}px`;}
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}
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class VerticalAxis {
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constructor(el) {
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this.element = el;
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}
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get scrollOffset() {return this.element.scrollTop;}
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get clientSize() {return this.element.clientHeight;}
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get offsetSize() {return this.element.offsetHeight;}
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get offsetStart() {return this.element.offsetTop;}
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set start(value) {this.element.style.top = `${value}px`;}
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set end(value) {this.element.style.bottom = `${value}px`;}
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}
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</script>
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</body>
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</html>
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@ -96,6 +96,8 @@ main {
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width: 100%;
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/* otherwise we don't get scrollbars and the content grows as large as it can */
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min-height: 0;
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/* make popups relative to this element so changing the left panel width doesn't affect their position */
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position: relative;
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}
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.RoomView {
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@ -163,3 +165,8 @@ main {
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z-index: 1;
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pointer-events: none;
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}
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.menu {
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position: absolute;
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z-index: 2;
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}
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@ -762,4 +762,31 @@ button.link {
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width: 200px;
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}
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.menu {
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border-radius: 8px;
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box-shadow: 2px 2px 10px rgba(0,0,0,0.5);
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padding: 4px;
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background-color: white;
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list-style: none;
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margin: 0;
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}
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.menu button {
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border-radius: 4px;
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display: block;
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border: none;
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width: 100%;
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background-color: transparent;
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text-align: left;
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padding: 8px 32px 8px 8px;
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}
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.menu button:focus {
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background-color: #03B381;
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color: white;
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}
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.menu button:hover {
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background-color: #03B381;
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color: white;
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}
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@ -0,0 +1,49 @@
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/*
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Copyright 2020 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
|
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You may obtain a copy of the License at
|
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|
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http://www.apache.org/licenses/LICENSE-2.0
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|
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Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
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*/
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import {TemplateView} from "./TemplateView.js";
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export class Menu extends TemplateView {
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static option(label, callback) {
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return new MenuOption(label, callback);
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}
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constructor(options) {
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super();
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this._options = options;
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}
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render(t) {
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return t.ul({className: "menu", role: "menu"}, this._options.map(o => {
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return t.li({
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className: o.icon ? `icon ${o.icon}` : "",
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}, t.button({onClick: o.callback}, o.label));
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}));
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}
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}
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class MenuOption {
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constructor(label, callback) {
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this.label = label;
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this.callback = callback;
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this.icon = null;
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}
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setIcon(className) {
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this.icon = className;
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return this;
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}
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}
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@ -0,0 +1,174 @@
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/*
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Copyright 2020 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
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||||
|
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Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
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*/
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const HorizontalAxis = {
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scrollOffset(el) {return el.scrollLeft;},
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size(el) {return el.offsetWidth;},
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offsetStart(el) {return el.offsetLeft;},
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setStart(el, value) {el.style.left = `${value}px`;},
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setEnd(el, value) {el.style.right = `${value}px`;},
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};
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const VerticalAxis = {
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scrollOffset(el) {return el.scrollTop;},
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size(el) {return el.offsetHeight;},
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offsetStart(el) {return el.offsetTop;},
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setStart(el, value) {el.style.top = `${value}px`;},
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setEnd(el, value) {el.style.bottom = `${value}px`;},
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};
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export class Popup {
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constructor(view) {
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this._view = view;
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this._target = null;
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this._arrangement = null;
|
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this._scroller = null;
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this._fakeRoot = null;
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this._trackingTemplateView = null;
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}
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trackInTemplateView(templateView) {
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this._trackingTemplateView = templateView;
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this._trackingTemplateView.addSubView(this);
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}
|
||||
|
||||
showRelativeTo(target, arrangement) {
|
||||
this._target = target;
|
||||
this._arrangement = arrangement;
|
||||
this._scroller = findScrollParent(this._target);
|
||||
this._view.mount();
|
||||
this._target.offsetParent.appendChild(this._popup);
|
||||
this._applyArrangementAxis(HorizontalAxis, this._arrangement.horizontal);
|
||||
this._applyArrangementAxis(VerticalAxis, this._arrangement.vertical);
|
||||
if (this._scroller) {
|
||||
document.body.addEventListener("scroll", this, true);
|
||||
}
|
||||
setTimeout(() => {
|
||||
document.body.addEventListener("click", this, false);
|
||||
}, 10);
|
||||
}
|
||||
|
||||
close() {
|
||||
this._view.unmount();
|
||||
this._trackingTemplateView.removeSubView(this);
|
||||
if (this._scroller) {
|
||||
document.body.removeEventListener("scroll", this, true);
|
||||
}
|
||||
document.body.removeEventListener("click", this, false);
|
||||
this._popup.remove();
|
||||
}
|
||||
|
||||
get _popup() {
|
||||
return this._view.root();
|
||||
}
|
||||
|
||||
handleEvent(evt) {
|
||||
if (evt.type === "scroll") {
|
||||
this._onScroll();
|
||||
} else if (evt.type === "click") {
|
||||
this._onClick(evt);
|
||||
}
|
||||
}
|
||||
|
||||
_onScroll() {
|
||||
if (this._scroller && !this._isVisibleInScrollParent(VerticalAxis)) {
|
||||
this.close();
|
||||
}
|
||||
this._applyArrangementAxis(HorizontalAxis, this._arrangement.horizontal);
|
||||
this._applyArrangementAxis(VerticalAxis, this._arrangement.vertical);
|
||||
}
|
||||
|
||||
_onClick() {
|
||||
this.close();
|
||||
}
|
||||
|
||||
_applyArrangementAxis(axis, {relativeTo, align, before, after}) {
|
||||
if (relativeTo === "end") {
|
||||
let end = axis.size(this._target.offsetParent) - axis.offsetStart(this._target);
|
||||
if (align === "end") {
|
||||
end -= axis.size(this._popup);
|
||||
} else if (align === "center") {
|
||||
end -= ((axis.size(this._popup) / 2) - (axis.size(this._target) / 2));
|
||||
}
|
||||
if (typeof before === "number") {
|
||||
end += before;
|
||||
} else if (typeof after === "number") {
|
||||
end -= (axis.size(this._target) + after);
|
||||
}
|
||||
axis.setEnd(this._popup, end);
|
||||
} else if (relativeTo === "start") {
|
||||
let scrollOffset = this._scroller ? axis.scrollOffset(this._scroller) : 0;
|
||||
let start = axis.offsetStart(this._target) - scrollOffset;
|
||||
if (align === "start") {
|
||||
start -= axis.size(this._popup);
|
||||
} else if (align === "center") {
|
||||
start -= ((axis.size(this._popup) / 2) - (axis.size(this._target) / 2));
|
||||
}
|
||||
if (typeof before === "number") {
|
||||
start -= before;
|
||||
} else if (typeof after === "number") {
|
||||
start += (axis.size(this._target) + after);
|
||||
}
|
||||
axis.setStart(this._popup, start);
|
||||
} else {
|
||||
throw new Error("unknown relativeTo: " + relativeTo);
|
||||
}
|
||||
}
|
||||
|
||||
_isVisibleInScrollParent(axis) {
|
||||
// clipped at start?
|
||||
if ((axis.offsetStart(this._target) + axis.size(this._target)) < (
|
||||
axis.offsetStart(this._scroller) +
|
||||
axis.scrollOffset(this._scroller)
|
||||
)) {
|
||||
return false;
|
||||
}
|
||||
// clipped at end?
|
||||
if (axis.offsetStart(this._target) > (
|
||||
axis.offsetStart(this._scroller) +
|
||||
axis.size(this._scroller) +
|
||||
axis.scrollOffset(this._scroller)
|
||||
)) {
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
/* fake UIView api, so it can be tracked by a template view as a subview */
|
||||
root() {
|
||||
return this._fakeRoot;
|
||||
}
|
||||
|
||||
mount() {
|
||||
this._fakeRoot = document.createComment("popup");
|
||||
return this._fakeRoot;
|
||||
}
|
||||
|
||||
unmount() {
|
||||
this.close();
|
||||
}
|
||||
|
||||
update() {}
|
||||
}
|
||||
|
||||
function findScrollParent(el) {
|
||||
let parent = el;
|
||||
do {
|
||||
parent = parent.parentElement;
|
||||
if (parent.scrollHeight > parent.clientHeight) {
|
||||
return parent;
|
||||
}
|
||||
} while (parent !== el.offsetParent);
|
||||
}
|
||||
|
|
@ -44,9 +44,6 @@ export class TemplateView {
|
|||
this._render = render;
|
||||
this._eventListeners = null;
|
||||
this._bindings = null;
|
||||
// this should become _subViews and also include templates.
|
||||
// How do we know which ones we should update though?
|
||||
// Wrapper class?
|
||||
this._subViews = null;
|
||||
this._root = null;
|
||||
this._boundUpdateFromValue = null;
|
||||
|
|
@ -57,7 +54,7 @@ export class TemplateView {
|
|||
}
|
||||
|
||||
_subscribe() {
|
||||
if (typeof this._value.on === "function") {
|
||||
if (typeof this._value?.on === "function") {
|
||||
this._boundUpdateFromValue = this._updateFromValue.bind(this);
|
||||
this._value.on("change", this._boundUpdateFromValue);
|
||||
}
|
||||
|
|
@ -146,12 +143,19 @@ export class TemplateView {
|
|||
this._bindings.push(bindingFn);
|
||||
}
|
||||
|
||||
_addSubView(view) {
|
||||
addSubView(view) {
|
||||
if (!this._subViews) {
|
||||
this._subViews = [];
|
||||
}
|
||||
this._subViews.push(view);
|
||||
}
|
||||
|
||||
removeSubView(view) {
|
||||
const idx = this._subViews.indexOf(view);
|
||||
if (idx !== -1) {
|
||||
this._subViews.splice(idx, 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// what is passed to render
|
||||
|
|
@ -288,7 +292,7 @@ class TemplateBuilder {
|
|||
} catch (err) {
|
||||
return errorToDOM(err);
|
||||
}
|
||||
this._templateView._addSubView(view);
|
||||
this._templateView.addSubView(view);
|
||||
return root;
|
||||
}
|
||||
|
||||
|
|
|
|||
Reference in New Issue