54 lines
2.5 KiB
HTML
54 lines
2.5 KiB
HTML
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<!doctype html>
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<html lang="en">
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<head>
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<title>Popup Doctest</title>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link rel="stylesheet" href="./3rdparty/highlight/styles/default.css">
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<link rel="stylesheet" href="../css/doctest.css">
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<script src="./3rdparty/highlight/highlight.pack.js"></script>
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<script src="../dist/iwmlib.3rdparty.js"></script>
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<script src="../dist/iwmlib.js"></script>
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</head>
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<body id="page" onload="Doctest.run()">
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<h1>
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Popups
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</h1>
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<p>
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Popups present context information on demand at a specific place.
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</p>
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<p>Let's look at an example of a popup. Active the popup by using a context (right) click. Note that the position of the
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open command must be in the coordinates of the parent node.
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<pre><code class="html">
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oncontextmenu="Popup.open(content,
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{x: event.offsetX, y: event.offsetY},
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{parent: example,
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keepWithin: example}); return false;"
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</code></pre>
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</p>
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<div id="example" class="interactive" style="position:relative; width: 100%; height: 200px; border: 1px solid lightgray"
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oncontextmenu="Popup.open(content, {x: event.offsetX, y: event.offsetY}, {parent: example, keepWithin: example}); return false;"></div>
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<script class="doctest">
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let content = { "text": "<p>A sample text that is long enough to demonstrate problems to fit within bounds.</p>" }
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let app = new App()
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let popup = new Popup({ parent: example, fontSize: "2em", autoClose: false })
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// Using JavaScripts arrow functions we can describe the
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// context commands in a concise way
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popup.showAt(content,
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{ x: 200, y: 150 })
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app.run()
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</script>
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<p>Sometimes popups are used within scaled, rotated, and translated DOM containers. Left click into the following scaled (0.5)
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and rotated container.
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</p>
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<div id="example2" class="interactive" style="position:relative; width: 100%; height: 200px; border: 1px solid lightgray; transform: scale(0.5) rotate(15deg);"
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oncontextmenu="Popup.open(content, {x: event.offsetX, y: event.offsetY}, {parent: example2, keepWithin: example2}); return false;"></div>
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<p>Another complication results from links that are too long to fit within
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<a href="#" onclick="Popup.open(content, Popup.targetCenter(event), {parent: page, keepWithin: page}); return false;">one line and which break if the page gets smaller.</a>
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This can be solved by using the Popup.targetCenter(event) as provider for the popup position.
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</p>
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</body>
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