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"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;
#mWindow;
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.#mFocusBlurNotifications.push(aNotification.type);
if (this.#mFocusBlurListener) {
this.#mFocusBlurListener(aNotification.type);
}
break;
}
return true;
}
get TIP() {
return this.#mTIP;
}
/**
* @param {Function} aListener
*/
set onIMEFocusBlur(aListener) {
this.#mFocusBlurListener = 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"
);
}
clearFocusBlurNotifications() {
this.#mFocusBlurNotifications = [];
}
destroy() {
this.#mTIP = null;
this.#mFocusBlurListener = null;
this.#mFocusBlurNotifications = [];
}
}
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