SSL file_ime_state_test_helper.js Sprache: JAVA

"use strict";

function IsIMEOpenStateSupported() {
  // We support to control IME open state on Windows and Mac actually.  However,
  // we cannot test it on Mac if the current keyboard layout is not CJK. And also
  // we cannot test it on Win32 if the system didn't be installed IME. So,
  // currently we should not run the open state testing.
  return false;
}

/**
* @param {Node} aNode
*/
function nodeIsInShadowDOM(aNode) {
  for (let node = aNode; node; node = node.parentNode) {
    if (node instanceof ShadowRoot) {
      return true;
    }
    if (node == node.parentNode) {
      break;
    }
  }
  return false;
}

/**
* @param {Node} aNode
*/
function nodeIsInDesignMode(aNode) {
  return (
    aNode.isConnected &&
    !nodeIsInShadowDOM(aNode) &&
    aNode.ownerDocument.designMode == "on"
  );
}

/**
* param {Node} aNode
*/
function getEditingHost(aNode) {
  if (nodeIsInDesignMode(aNode)) {
    return aNode.ownerDocument.documentElement;
  }
  for (
    let element =
      aNode.nodeType == Node.ELEMENT_NODE ? aNode : aNode.parentElement;
    element;
    element = element.parentElement
  ) {
    const contenteditable = element.getAttribute("contenteditable");
    if (contenteditable === "true" || contenteditable === "") {
      return element;
    }
    if (contenteditable === "false") {
      return null;
    }
  }
  return null;
}

/**
* @param {Node} aNode
*/
function nodeIsEditable(aNode) {
  if (nodeIsInDesignMode(aNode)) {
    return true;
  }
  if (!aNode.isConnected) {
    return false;
  }
  return getEditingHost(aNode) != null;
}

/**
* @param {Element} aElement
*/
function elementIsEditingHost(aElement) {
  return (
    nodeIsEditable(aElement) &&
    (!aElement.parentElement || !getEditingHost(aElement) == aElement)
  );
}

/**
* @returns {Element} Retrieve focused element.  If focused element is a element
*                    in UA widget, this returns its host element.  E.g., when
*                    a button in the controls of <audio> or <video> has focus,
*                    this returns the <video> or <audio>.
*/
function getFocusedElementOrUAWidgetHost() {
  const focusedElement = SpecialPowers.focusManager.focusedElement;
  if (SpecialPowers.wrap(focusedElement)?.containingShadowRoot?.isUAWidget()) {
    return focusedElement.containingShadowRoot.host;
  }
  return focusedElement;
}

class TIPWrapper {
  #mTIP = null;
  #mFocusBlurNotifications = [];
  #mFocusBlurListener;
  #mSelectionChangeListener;
  #mWindow;
  #mSelection;

  constructor(aWindow) {
    this.#mWindow = aWindow;
    this.#mTIP = Cc["@mozilla.org/text-input-processor;1"].createInstance(
      Ci.nsITextInputProcessor
    );
    if (!this.beginInputTransactionForTests()) {
      this.#mTIP = null;
    }
  }

  beginInputTransactionForTests() {
    return this.#mTIP.beginInputTransactionForTests(
      this.#mWindow,
      this.#observer.bind(this)
    );
  }

  typeA() {
    const AKey = new this.#mWindow.KeyboardEvent("", {
      key: "a",
      code: "KeyA",
      keyCode: this.#mWindow.KeyboardEvent.DOM_VK_A,
    });
    this.#mTIP.keydown(AKey);
    this.#mTIP.keyup(AKey);
  }

  isAvailable() {
    return this.#mTIP != null;
  }

  #observer(aTIP, aNotification) {
    if (aTIP != this.#mTIP) {
      return false;
    }
    switch (aNotification.type) {
      case "request-to-commit":
        this.#mTIP.commitComposition();
        break;
      case "request-to-cancel":
        this.#mTIP.cancelComposition();
        break;
      case "notify-focus":
      case "notify-blur":
        this.#mSelection = undefined;
        this.#mFocusBlurNotifications.push(aNotification.type);
        if (this.#mFocusBlurListener) {
          this.#mFocusBlurListener(aNotification.type);
        }
        break;
      case "notify-selection-change":
        this.#mSelection = {
          hasRange: aNotification.hasRange,
          offset: aNotification.hasRange ? aNotification.offset : undefined,
          text: aNotification.hasRange ? aNotification.text : undefined,
          collapsed: aNotification.collapsed,
          length: aNotification.hasRange ? aNotification.length : undefined,
          reversed: aNotification.hasRange ? aNotification.reversed : undefined,
          writingMode: aNotification.writingMode,
          causedByComposition: aNotification.causedByComposition,
          occurredDuringComposition: aNotification.occurredDuringComposition,
        };
        if (this.#mSelectionChangeListener) {
          this.#mSelectionChangeListener(this.selectionCache);
        }
        break;
    }
    return true;
  }

  get TIP() {
    return this.#mTIP;
  }

  /**
   * @param {Function} aListener
   */
  set onIMEFocusBlur(aListener) {
    this.#mFocusBlurListener = aListener;
  }

  /**
   * @param {Function} aListener
   */
  set onSelectionChange(aListener) {
    this.#mSelectionChangeListener = aListener;
  }

  get focusBlurNotifications() {
    return this.#mFocusBlurNotifications.concat();
  }

  get numberOfFocusNotifications() {
    return this.#mFocusBlurNotifications.filter(t => t == "notify-focus")
      .length;
  }
  get numberOfBlurNotifications() {
    return this.#mFocusBlurNotifications.filter(t => t == "notify-blur").length;
  }

  get IMEHasFocus() {
    return (
      !!this.#mFocusBlurNotifications.length &&
      this.#mFocusBlurNotifications[this.#mFocusBlurNotifications.length - 1] ==
        "notify-focus"
    );
  }

  get selectionCache() {
    if (this.#mSelection === undefined) {
      return undefined;
    }
    return this.#mWindow.structuredClone(this.#mSelection);
  }

  clearFocusBlurNotifications() {
    this.#mFocusBlurNotifications = [];
  }

  destroy() {
    this.#mTIP = null;
    this.#mFocusBlurListener = null;
    this.#mFocusBlurNotifications = [];
  }
}

quality89%

¤ Dauer der Verarbeitung: 0.32 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.