Emilio Cobos Álvarez
bc37920bdb
There are no callers from JS (looked at the selection region constant usage in idl and those use nsISelectionController, not this). If we were to provide this API in the future, it would probably use ScrollIntoViewOptions or so instead (plus something extra perhaps). I wanted to remove the weird WehreToScroll percentage impl, but actually some C++ accessibility code still uses it. Differential Revision: https://phabricator.services.mozilla.com/D216872
113 lines
4.6 KiB
HTML
113 lines
4.6 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>Test for scrolling selection into view</title>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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</head>
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<body>
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<pre id="test">
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<script class="testbody" type="text/javascript">
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var win;
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const nsISelectionController = SpecialPowers.Ci.nsISelectionController;
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function controllerForWindow(aWin) {
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return SpecialPowers.wrap(aWin)
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.docShell
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.QueryInterface(SpecialPowers.Ci.nsIInterfaceRequestor)
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.getInterface(SpecialPowers.Ci.nsISelectionDisplay)
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.QueryInterface(SpecialPowers.Ci.nsISelectionController);
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}
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function testCollapsed(id, flags, startAt, expected) {
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var c = win.document.getElementById("c" + id);
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var target = win.document.getElementById("target" + id);
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var controller;
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if (target.contentDocument) {
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controller = controllerForWindow(target.contentWindow);
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target = target.contentDocument.getElementById("target" + id);
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} else {
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controller = controllerForWindow(win);
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}
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var selection = controller.getSelection(nsISelectionController.SELECTION_NORMAL);
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selection.collapse(target.parentNode, 0);
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c.scrollTop = startAt;
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try {
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controller.scrollSelectionIntoView(
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nsISelectionController.SELECTION_NORMAL,
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nsISelectionController.SELECTION_FOCUS_REGION,
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nsISelectionController.SCROLL_SYNCHRONOUS | flags
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);
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} catch (e) {}
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is(c.scrollTop, expected, "Scrolling " + target.id +
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" into view with flags " + flags + ", starting at " + startAt);
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}
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function doTest() {
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// Test scrolling an element smaller than the scrollport
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testCollapsed("1", nsISelectionController.SCROLL_VERTICAL_START, 0, 400);
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testCollapsed("1", nsISelectionController.SCROLL_VERTICAL_END, 0, 220);
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testCollapsed("1", nsISelectionController.SCROLL_VERTICAL_NEAREST, 0, 220);
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testCollapsed("1", nsISelectionController.SCROLL_VERTICAL_START, 500, 400);
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testCollapsed("1", nsISelectionController.SCROLL_VERTICAL_END, 500, 220);
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testCollapsed("1", nsISelectionController.SCROLL_VERTICAL_NEAREST, 500, 400);
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// overflow:hidden elements should not be scrolled by selection
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// scrolling-into-view
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testCollapsed("2", nsISelectionController.SCROLL_VERTICAL_START, 0, 0);
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testCollapsed("2", nsISelectionController.SCROLL_VERTICAL_END, 0, 0);
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testCollapsed("2", nsISelectionController.SCROLL_VERTICAL_NEAREST, 0, 0);
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testCollapsed("2", nsISelectionController.SCROLL_VERTICAL_START, 500, 500);
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testCollapsed("2", nsISelectionController.SCROLL_VERTICAL_END, 500, 500);
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testCollapsed("2", nsISelectionController.SCROLL_VERTICAL_NEAREST, 500, 500);
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// Test scrolling an element larger than the scrollport
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testCollapsed("3", nsISelectionController.SCROLL_VERTICAL_START, 0, 400);
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testCollapsed("3", nsISelectionController.SCROLL_VERTICAL_END, 0, 500);
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testCollapsed("3", nsISelectionController.SCROLL_VERTICAL_NEAREST, 0, 400);
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testCollapsed("3", nsISelectionController.SCROLL_VERTICAL_START, 1000, 400);
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testCollapsed("3", nsISelectionController.SCROLL_VERTICAL_END, 1000, 500);
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// If the element can't be completely visible, show as much as possible,
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// and don't hide anything which was initially visible.
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testCollapsed("3", nsISelectionController.SCROLL_VERTICAL_NEAREST, 1000, 500);
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// Test scrolling an element larger than the scrollport
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testCollapsed("4", nsISelectionController.SCROLL_VERTICAL_START, 0, 400);
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testCollapsed("4", nsISelectionController.SCROLL_VERTICAL_END, 0, 500);
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testCollapsed("4", nsISelectionController.SCROLL_VERTICAL_NEAREST, 0, 400);
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testCollapsed("4", nsISelectionController.SCROLL_VERTICAL_START, 1000, 400);
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testCollapsed("4", nsISelectionController.SCROLL_VERTICAL_END, 1000, 500);
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// If the element can't be completely visible, show as much as possible,
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// and don't hide anything which was initially visible.
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testCollapsed("4", nsISelectionController.SCROLL_VERTICAL_NEAREST, 1000, 500);
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// Test that scrolling a translated element into view takes
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// account of the transform.
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testCollapsed("5", nsISelectionController.SCROLL_VERTICAL_START, 0, 400);
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// Test that scrolling a scaled element into view takes
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// account of the transform.
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testCollapsed("6", nsISelectionController.SCROLL_VERTICAL_START, 0, 150);
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// Test that scrolling an element with a translated, scrolling container
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// into view takes account of the transform.
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testCollapsed("7", nsISelectionController.SCROLL_VERTICAL_START, 0, 400);
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win.close();
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SimpleTest.finish();
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}
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function openWindow() {
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win = open("scroll_selection_into_view_window.html", "_blank", "width=500,height=350");
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}
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SimpleTest.waitForExplicitFinish();
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addLoadEvent(openWindow);
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</script>
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</pre>
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</body>
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</html>
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