Impressum test_contextmenu_chorded_buttons.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/widget/tests/test_contextmenu_chorded_buttons.html

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Test PointerEvent.buttons of `contextmenu`</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
<script>
"use strict";

SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(async () => {
  let contextMenuEvent;
  // Using native mouse button state may be unstable. Try some times until getting expected result.
  for (let i = 0; i < 10; i++) {
    const promiseContextMenu = new Promise(resolve => {
      addEventListener("contextmenu", resolve, { once: true, capture: true });
    });
    info("synthesizing mousemove to the clicking position...");
    await promiseNativeMouseEvent({
      type: "mousemove",
      target: document.body,
      offsetX: 10,
      offsetY: 10,
    });
    info("synthesizing primary button down...");
    await promiseNativeMouseEvent({
      type: "mousedown",
      target: document.body,
      offsetX: 10,
      offsetY: 10,
      button: 0,
    });
    info("synthesizing middle button down...");
    await promiseNativeMouseEvent({
      type: "mousedown",
      target: document.body,
      offsetX: 10,
      offsetY: 10,
      button: 1,
    });
    info("synthesizing right click...");
    await promiseNativeMouseEvent({
      type: "click",
      target: document.body,
      offsetX: 10,
      offsetY: 10,
      button: 2,
    });
    info("synthesizing primary button up...");
    await promiseNativeMouseEvent({
      type: "mouseup",
      target: document.body,
      offsetX: 10,
      offsetY: 10,
      button: 0,
    });
    info("synthesizing middle button up...");
    await promiseNativeMouseEvent({
      type: "mouseup",
      target: document.body,
      offsetX: 10,
      offsetY: 10,
      button: 1,
    });

    info("waiting for contextmenu event...");
    contextMenuEvent = await promiseContextMenu;

    const promiseContextMenuClosed = new Promise(resolve => {
      addEventListener("keyup", resolve, {once: true});
      synthesizeKey("KEY_Escape");
    });
    info("waiting for closing contextmenu...");
    await promiseContextMenuClosed;

    // It depends on the platform whether the context menu opens before/after
    // mouseup of the secondary mouse button.  Therefore, we should ignore
    // 2 of `.buttons` of `contextmenu`.
    if ((contextMenuEvent?.buttons & ~2) == (1 | 4)) {
      break;
    }
    info(`Retrying due to: ${
      !contextMenuEvent ? "no `contextmenu` event" : `unexpected buttons, ${contextMenuEvent.buttons}`
    }`);
  }

  // See above comment for the reason why we ignore 2 of `.buttons` of `contextmenu`.
  is(
    contextMenuEvent?.buttons & ~2,
    (1 | 4),
    "buttons of contextmenu event should indicate that the primary button and the middle button is pressed"
  );

  SimpleTest.finish();
});
</script>
</head>
</html>

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