debug-server-next
Version:
Dev server for hippy-core.
179 lines (178 loc) • 7.33 kB
JavaScript
/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* eslint-disable rulesdir/no_underscored_properties */
import * as ARIAUtils from './ARIAUtils.js';
import { GlassPane, PointerEventsBehavior } from './GlassPane.js';
import { InspectorView } from './InspectorView.js';
import { KeyboardShortcut, Keys } from './KeyboardShortcut.js';
import { WidgetFocusRestorer } from './Widget.js';
export class Dialog extends GlassPane {
_tabIndexBehavior;
_tabIndexMap;
_focusRestorer;
_closeOnEscape;
_targetDocument;
_targetDocumentKeyDownHandler;
_escapeKeyCallback;
constructor() {
super();
this.registerRequiredCSS('ui/legacy/dialog.css');
this.contentElement.tabIndex = 0;
this.contentElement.addEventListener('focus', () => this.widget().focus(), false);
this.widget().setDefaultFocusedElement(this.contentElement);
this.setPointerEventsBehavior(PointerEventsBehavior.BlockedByGlassPane);
this.setOutsideClickCallback(event => {
this.hide();
event.consume(true);
});
ARIAUtils.markAsModalDialog(this.contentElement);
this._tabIndexBehavior = OutsideTabIndexBehavior.DisableAllOutsideTabIndex;
this._tabIndexMap = new Map();
this._focusRestorer = null;
this._closeOnEscape = true;
this._targetDocumentKeyDownHandler = this._onKeyDown.bind(this);
this._escapeKeyCallback = null;
}
static hasInstance() {
return Boolean(Dialog._instance);
}
show(where) {
const document = (where instanceof Document ? where : (where || InspectorView.instance().element).ownerDocument);
this._targetDocument = document;
this._targetDocument.addEventListener('keydown', this._targetDocumentKeyDownHandler, true);
if (Dialog._instance) {
Dialog._instance.hide();
}
Dialog._instance = this;
this._disableTabIndexOnElements(document);
super.show(document);
this._focusRestorer = new WidgetFocusRestorer(this.widget());
}
hide() {
if (this._focusRestorer) {
this._focusRestorer.restore();
}
super.hide();
if (this._targetDocument) {
this._targetDocument.removeEventListener('keydown', this._targetDocumentKeyDownHandler, true);
}
this._restoreTabIndexOnElements();
this.dispatchEventToListeners('hidden');
Dialog._instance = null;
}
setCloseOnEscape(close) {
this._closeOnEscape = close;
}
setEscapeKeyCallback(callback) {
this._escapeKeyCallback = callback;
}
addCloseButton() {
const closeButton = this.contentElement.createChild('div', 'dialog-close-button', 'dt-close-button');
closeButton.gray = true;
closeButton.addEventListener('click', () => this.hide(), false);
}
setOutsideTabIndexBehavior(tabIndexBehavior) {
this._tabIndexBehavior = tabIndexBehavior;
}
_disableTabIndexOnElements(document) {
if (this._tabIndexBehavior === OutsideTabIndexBehavior.PreserveTabIndex) {
return;
}
let exclusionSet = null;
if (this._tabIndexBehavior === OutsideTabIndexBehavior.PreserveMainViewTabIndex) {
exclusionSet = this._getMainWidgetTabIndexElements(InspectorView.instance().ownerSplit());
}
this._tabIndexMap.clear();
let node = document;
for (; node; node = node.traverseNextNode(document)) {
if (node instanceof HTMLElement) {
const element = node;
const tabIndex = element.tabIndex;
if (tabIndex >= 0 && (!exclusionSet || !exclusionSet.has(element))) {
this._tabIndexMap.set(element, tabIndex);
element.tabIndex = -1;
}
}
}
}
_getMainWidgetTabIndexElements(splitWidget) {
const elementSet = new Set();
if (!splitWidget) {
return elementSet;
}
const mainWidget = splitWidget.mainWidget();
if (!mainWidget || !mainWidget.element) {
return elementSet;
}
let node = mainWidget.element;
for (; node; node = node.traverseNextNode(mainWidget.element)) {
if (!(node instanceof HTMLElement)) {
continue;
}
const element = node;
const tabIndex = element.tabIndex;
if (tabIndex < 0) {
continue;
}
elementSet.add(element);
}
return elementSet;
}
_restoreTabIndexOnElements() {
for (const element of this._tabIndexMap.keys()) {
element.tabIndex = this._tabIndexMap.get(element);
}
this._tabIndexMap.clear();
}
_onKeyDown(event) {
const keyboardEvent = event;
if (keyboardEvent.keyCode === Keys.Esc.code && KeyboardShortcut.hasNoModifiers(event)) {
if (this._escapeKeyCallback) {
this._escapeKeyCallback(event);
}
if (event.handled) {
return;
}
if (this._closeOnEscape) {
event.consume(true);
this.hide();
}
}
}
static _instance = null;
}
// TODO(crbug.com/1167717): Make this a const enum again
// eslint-disable-next-line rulesdir/const_enum
export var OutsideTabIndexBehavior;
(function (OutsideTabIndexBehavior) {
OutsideTabIndexBehavior["DisableAllOutsideTabIndex"] = "DisableAllTabIndex";
OutsideTabIndexBehavior["PreserveMainViewTabIndex"] = "PreserveMainViewTabIndex";
OutsideTabIndexBehavior["PreserveTabIndex"] = "PreserveTabIndex";
})(OutsideTabIndexBehavior || (OutsideTabIndexBehavior = {}));