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Add WPT for Selection.modify() character movement in bidi text
Tests to support the spec change PR - w3c/selection-api#357 Bug: 499819853 Change-Id: Ia827a90b9c12f64d04ea72cb2bee8f0535bedd6e Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7848414 Reviewed-by: Kent Tamura <tkent@chromium.org> Reviewed-by: Pranav Modi <pranavmodi@microsoft.com> Commit-Queue: Sambamurthy Bandaru <sambamurthy.bandaru@microsoft.com> Cr-Commit-Position: refs/heads/main@{#1631971}
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‎selection/bidi/move-by-character.html‎

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<!DOCTYPE html>
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<meta charset="utf-8">
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<title>Selection.modify() character granularity in bidi text</title>
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<script src=/resources/testharness.js></script>
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<script src=/resources/testharnessreport.js></script>
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<style>
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#container div { font: 16px monospace; }
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</style>
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<div id="container">
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<!-- [Hello World ] -->
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<div id="pure-ltr" dir="ltr">Hello World</div>
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<!-- [ مرحبا عالم] -->
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<div id="pure-rtl" dir="rtl">&#x0645;&#x0631;&#x062D;&#x0628;&#x0627; &#x0639;&#x0627;&#x0644;&#x0645;</div>
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<!-- [אבגדהו ] -->
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<div id="rtl-in-ltr" dir="ltr">&#x05D0;&#x05D1;&#x05D2;&#x05D3;&#x05D4;&#x05D5;</div>
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<!-- [ Hello World] -->
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<div id="ltr-in-rtl" dir="rtl">Hello World</div>
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<!-- [Hello אבגדהו World ] -->
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<div id="mixed-ltr" dir="ltr">Hello &#x05D0;&#x05D1;&#x05D2;&#x05D3;&#x05D4;&#x05D5; World</div>
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<!-- [ Hello World אבגדהו] -->
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<div id="mixed-auto" dir="auto">&#x05D0;&#x05D1;&#x05D2;&#x05D3;&#x05D4;&#x05D5; Hello World</div>
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</div>
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<script>
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const selection = getSelection();
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function runTest(divId, count, direction, startOffset, endOffset, name) {
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test(() => {
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const div = document.getElementById(divId);
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selection.collapse(div.firstChild, startOffset);
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for (let i = 0; i < count; i++) {
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selection.modify("move", direction, "character");
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}
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assert_equals(selection.focusOffset, endOffset);
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}, name);
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}
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// Move in logical direction forward/backward
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runTest("pure-ltr", 2, "forward", 3, 5,
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"LTR text in LTR paragraph: move forward 2 chars");
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runTest("pure-ltr", 2, "backward", 5, 3,
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"LTR text in LTR paragraph: move backward 2 chars");
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runTest("pure-rtl", 2, "forward", 2, 4,
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"RTL text in RTL paragraph: move forward 2 chars");
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runTest("pure-rtl", 2, "backward", 4, 2,
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"RTL text in RTL paragraph: move backward 2 chars");
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runTest("rtl-in-ltr", 2, "forward", 2, 4,
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"RTL text in LTR paragraph: move forward 2 chars");
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runTest("rtl-in-ltr", 2, "backward", 4, 2,
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"RTL text in LTR paragraph: move backward 2 chars");
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runTest("ltr-in-rtl", 2, "forward", 3, 5,
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"LTR text in RTL paragraph: move forward 2 chars");
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runTest("ltr-in-rtl", 2, "backward", 5, 3,
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"LTR text in RTL paragraph: move backward 2 chars");
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runTest("mixed-ltr", 3, "forward", 4, 7,
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"LTR-RTL context in LTR paragraph: move forward 3 chars");
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runTest("mixed-ltr", 3, "backward", 11, 8,
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"LTR-RTL context in LTR paragraph: move backward 3 chars");
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runTest("mixed-ltr", 3, "forward", 7, 10,
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"RTL-LTR context in LTR paragraph: move forward 3 chars");
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runTest("mixed-ltr", 3, "backward", 14, 11,
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"RTL-LTR context in LTR paragraph: move backward 3 chars");
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runTest("mixed-auto", 3, "forward", 5, 8,
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"Mixed context in auto-dir paragraph: move forward 3 chars");
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runTest("mixed-auto", 3, "backward", 17, 14,
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"Mixed context in auto-dir paragraph: move backward 3 chars");
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// Move in true visual direction left/right
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runTest("pure-ltr", 2, "right", 3, 5,
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"LTR text in LTR paragraph: move right 2 chars");
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runTest("pure-ltr", 2, "left", 5, 3,
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"LTR text in LTR paragraph: move left 2 chars");
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runTest("pure-rtl", 2, "right", 4, 2,
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"RTL text in RTL paragraph: move right 2 chars");
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runTest("pure-rtl", 2, "left", 2, 4,
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"RTL text in RTL paragraph: move left 2 chars");
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runTest("rtl-in-ltr", 2, "right", 4, 2,
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"RTL text in LTR paragraph: move right 2 chars");
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runTest("rtl-in-ltr", 2, "left", 2, 4,
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"RTL text in LTR paragraph: move left 2 chars");
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runTest("ltr-in-rtl", 2, "right", 3, 5,
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"LTR text in RTL paragraph: move right 2 chars");
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runTest("ltr-in-rtl", 2, "left", 5, 3,
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"LTR text in RTL paragraph: move left 2 chars");
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runTest("mixed-ltr", 3, "right", 4, 11,
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"LTR-RTL context in LTR paragraph: move right 3 chars");
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runTest("mixed-ltr", 3, "left", 11, 4,
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"LTR-RTL context in LTR paragraph: move left 3 chars");
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runTest("mixed-ltr", 3, "right", 7, 14,
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"RTL-LTR context in LTR paragraph: move right 3 chars");
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runTest("mixed-ltr", 3, "left", 14, 7,
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"RTL-LTR context in LTR paragraph: move left 3 chars");
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runTest("mixed-auto", 3, "right", 17, 5,
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"Mixed context in auto-dir paragraph: move right 3 chars");
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runTest("mixed-auto", 3, "left", 5, 17,
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"Mixed context in auto-dir paragraph: move left 3 chars");
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</script>

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