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products/Sources/formale Sprachen/C/Firefox/editor/libeditor/tests/ (Browser von der Mozilla Stiftung Version 136.0.1^©) Datei vom 10.2.2025 mit Größe 8 kB

Quelle test_nsIEditor_deleteNode.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/editor/libeditor/tests/test_nsIEditor_deleteNode.html

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>nsIEditor.insertNode</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
<script>
"use strict";

function stringifyInputEvent(aEvent) {
  if (!aEvent) {
    return "null";
  }
  return `${aEvent.type}: { inputType=${aEvent.inputType} }`;
}

function getRangeDescription(range) {
  function getNodeDescription(node) {
    if (!node) {
      return "null";
    }
    switch (node.nodeType) {
      case Node.TEXT_NODE:
        return `${node.nodeName} "${node.data}"`;
      case Node.ELEMENT_NODE:
        return `<${node.nodeName.toLowerCase()}>`;
      default:
        return `${node.nodeName}`;
    }
  }
  if (range === null) {
    return "null";
  }
  if (range === undefined) {
    return "undefined";
  }
  return range.startContainer == range.endContainer &&
    range.startOffset == range.endOffset
    ? `(${getNodeDescription(range.startContainer)}, ${range.startOffset})`
    : `(${getNodeDescription(range.startContainer)}, ${
        range.startOffset
      }) - (${getNodeDescription(range.endContainer)}, ${range.endOffset})`;
}

SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(() => {
  const editingHost = document.querySelector("div[contenteditable]");
  const editor =
    SpecialPowers.wrap(window).docShell.editingSession.getEditorForWindow(window);

  editingHost.focus();

  let events = [];
  editingHost.addEventListener("input", event => events.push(event));

  (function test_delete_node_before_selection() {
    editingHost.innerHTML = "abcdef";
    getSelection().collapse(editingHost.querySelector("span + span").firstChild, 0);
    editor.deleteNode(editingHost.querySelector("span"));
    is(
      editingHost.innerHTML,
      "def",
      "test_delete_node_before_selection: deleteNode() should delete the node"
    );
    is(
      events.length,
      1,
      "test_delete_node_before_selection: Only one input event should be fired when deleteNode() deletes a node"
    );
    is(
      stringifyInputEvent(events[0]),
      stringifyInputEvent({ type: "input", inputType: "" }),
      "test_delete_node_before_selection: input event should be fired when deleting a node"
    );
    is(
      getRangeDescription(getSelection().getRangeAt(0)),
      getRangeDescription({
        startContainer: editingHost.firstChild.firstChild,
        startOffset: 0,
        endContainer: editingHost.firstChild.firstChild,
        endOffset: 0,
      }),
      "test_delete_node_before_selection: selection shouldn't be updated"
    );
  })();

  (function test_delete_node_after_selection() {
    events = [];
    editingHost.innerHTML = "abcdef";
    getSelection().collapse(editingHost.querySelector("span").firstChild, 0);
    editor.deleteNode(editingHost.querySelector("span + span"));
    is(
      editingHost.innerHTML,
      "abc",
      "test_delete_node_after_selection: deleteNode() should delete the node"
    );
    is(
      events.length,
      1,
      "test_delete_node_after_selection: Only one input event should be fired when deleteNode() deletes a node"
    );
    is(
      stringifyInputEvent(events[0]),
      stringifyInputEvent({ type: "input", inputType: "" }),
      "test_delete_node_after_selection: input event should be fired when deleting a node"
    );
    is(
      getRangeDescription(getSelection().getRangeAt(0)),
      getRangeDescription({
        startContainer: editingHost.firstChild.firstChild,
        startOffset: 0,
        endContainer: editingHost.firstChild.firstChild,
        endOffset: 0,
      }),
      "test_delete_node_after_selection: selection shouldn't be updated"
    );
  })();

  (function test_delete_node_containing_selection() {
    events = [];
    editingHost.innerHTML = "abcdef";
    getSelection().collapse(editingHost.querySelector("span").firstChild, 0);
    editor.deleteNode(editingHost.querySelector("span"));
    is(
      editingHost.innerHTML,
      "def",
      "test_delete_node_containing_selection: deleteNode() should delete the node"
    );
    is(
      events.length,
      1,
      "test_delete_node_containing_selection: Only one input event should be fired when deleteNode() deletes a node"
    );
    is(
      stringifyInputEvent(events[0]),
      stringifyInputEvent({ type: "input", inputType: "" }),
      "test_delete_node_containing_selection: input event should be fired when deleting a node"
    );
    is(
      getRangeDescription(getSelection().getRangeAt(0)),
      getRangeDescription({
        startContainer: editingHost,
        startOffset: 0,
        endContainer: editingHost,
        endOffset: 0,
      }),
      "test_delete_node_containing_selection: selection should be updated whether node was"
    );
  })();

  (function test_delete_node_containing_selection_with_preserving_selection() {
    events = [];
    editingHost.innerHTML = "abcdef";
    getSelection().collapse(editingHost.querySelector("span").firstChild, 0);
    editor.deleteNode(editingHost.querySelector("span"), true);
    is(
      editingHost.innerHTML,
      "def",
      "test_delete_node_containing_selection_with_preserving_selection: deleteNode() should delete the node"
    );
    is(
      events.length,
      1,
      "test_delete_node_containing_selection_with_preserving_selection: Only one input event should be fired when deleteNode() deletes a node"
    );
    is(
      stringifyInputEvent(events[0]),
      stringifyInputEvent({ type: "input", inputType: "" }),
      "test_delete_node_containing_selection_with_preserving_selection: input event should be fired when deleting a node"
    );
    is(
      getRangeDescription(getSelection().getRangeAt(0)),
      getRangeDescription({
        startContainer: editingHost,
        startOffset: 0,
        endContainer: editingHost,
        endOffset: 0,
      }),
      "test_delete_node_containing_selection_with_preserving_selection: selection should be updated whether node was"
    );
  })();

  (function test_not_preserve_selection_nested_by_beforeinput() {
    editingHost.innerHTML = "abcghi";
    const span = document.createElement("span");
    span.textContent = "def";
    getSelection().collapse(editingHost, 0);
    editingHost.addEventListener("beforeinput", () => {
      editor.insertNode(span, editingHost, 1);
    }, {once: true});
    editor.deleteNode(editingHost.querySelector("span + span"), true);
    is(
      editingHost.innerHTML,
      "abcdef",
      "test_not_preserve_selection_nested_by_beforeinput: both insertNode() and deleteNode() should work"
    );
    is(
      getRangeDescription(getSelection().getRangeAt(0)),
      getRangeDescription({
        startContainer: editingHost,
        startOffset: 2,
        endContainer: editingHost,
        endOffset: 2,
      }),
      "test_not_preserve_selection_nested_by_beforeinput: only insertNode() called in beforeinput listener should update selection"
    );
  })();

  (function test_not_preserve_selection_nested_by_input() {
    editingHost.innerHTML = "abcghi";
    const span = document.createElement("span");
    span.textContent = "def";
    getSelection().collapse(editingHost, 0);
    editingHost.addEventListener("input", () => {
      editor.insertNode(span, editingHost, 1);
    }, {once: true});
    editor.deleteNode(editingHost.querySelector("span + span"), true);
    is(
      editingHost.innerHTML,
      "abcdef",
      "test_not_preserve_selection_nested_by_input: both insertNode() and deleteNode() should work"
    );
    is(
      getRangeDescription(getSelection().getRangeAt(0)),
      getRangeDescription({
        startContainer: editingHost,
        startOffset: 2,
        endContainer: editingHost,
        endOffset: 2,
      }),
      "test_not_preserve_selection_nested_by_input: only insertNode() called in input listener should update selection"
    );
  })();

  SimpleTest.finish();
});

</script>
</head>
<body><div contenteditable><br></div></body>
</html>

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