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ca2d7cbfc2
At this point, there's only one non-test use of this method in FindBarChild.sys.mjs which could be replaced with a simpler solution. Removing this method seems to lower memory usage a bit. https://treeherder.mozilla.org/perfherder/compare?originalProject=try&originalRevision=2dc498c7c81bd00c989cc3b69993ec1a53ff3032&newProject=try&newRevision=32669e95c9609cb07c258ca5fe964e9eb6411ade&page=1&framework=4 Differential Revision: https://phabricator.services.mozilla.com/D184403
169 lines
4.2 KiB
JavaScript
169 lines
4.2 KiB
JavaScript
/* vim: set ts=2 sw=2 sts=2 et tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
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const lazy = {};
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ChromeUtils.defineESModuleGetters(lazy, {
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BrowserUtils: "resource://gre/modules/BrowserUtils.sys.mjs",
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});
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export class FindBarChild extends JSWindowActorChild {
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constructor() {
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super();
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this._findKey = null;
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this.inQuickFind = false;
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this.inPassThrough = false;
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ChromeUtils.defineLazyGetter(this, "FindBarContent", () => {
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const { FindBarContent } = ChromeUtils.importESModule(
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"resource://gre/modules/FindBarContent.sys.mjs"
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);
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let findBarContent = new FindBarContent(this);
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Object.defineProperties(this, {
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inQuickFind: {
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get() {
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return findBarContent.inQuickFind;
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},
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},
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inPassThrough: {
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get() {
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return findBarContent.inPassThrough;
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},
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},
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});
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return findBarContent;
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});
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}
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receiveMessage(msg) {
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if (msg.name == "Findbar:UpdateState") {
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this.FindBarContent.updateState(msg.data);
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}
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}
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/**
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* Check whether this key event will start the findbar in the parent,
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* in which case we should pass any further key events to the parent to avoid
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* them being lost.
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* @param aEvent the key event to check.
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*/
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eventMatchesFindShortcut(aEvent) {
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if (!this._findKey) {
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this._findKey = Services.cpmm.sharedData.get("Findbar:Shortcut");
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if (!this._findKey) {
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return false;
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}
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}
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for (let k in this._findKey) {
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if (this._findKey[k] != aEvent[k]) {
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return false;
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}
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}
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return true;
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}
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handleEvent(event) {
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if (event.type == "keypress") {
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this.onKeypress(event);
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}
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}
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onKeypress(event) {
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if (!this.inPassThrough && this.eventMatchesFindShortcut(event)) {
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return this.FindBarContent.start(event);
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}
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// disable FAYT in about:blank to prevent FAYT opening unexpectedly.
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let location = this.document.location.href;
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if (location == "about:blank") {
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return null;
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}
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if (
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event.ctrlKey ||
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event.altKey ||
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event.metaKey ||
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event.defaultPrevented ||
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!lazy.BrowserUtils.mimeTypeIsTextBased(this.document.contentType) ||
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!lazy.BrowserUtils.canFindInPage(location)
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) {
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return null;
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}
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if (this.inPassThrough || this.inQuickFind) {
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return this.FindBarContent.onKeypress(event);
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}
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if (event.charCode && this.shouldFastFind(event.target)) {
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let key = String.fromCharCode(event.charCode);
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if ((key == "/" || key == "'") && FindBarChild.manualFAYT) {
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return this.FindBarContent.startQuickFind(event);
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}
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if (key != " " && FindBarChild.findAsYouType) {
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return this.FindBarContent.startQuickFind(event, true);
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}
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}
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return null;
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}
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/**
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* Return true if we should FAYT for this node:
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*
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* @param elt
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* The element that is focused
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*/
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shouldFastFind(elt) {
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if (elt) {
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let win = elt.ownerGlobal;
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if (win.HTMLInputElement.isInstance(elt) && elt.mozIsTextField(false)) {
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return false;
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}
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if (elt.isContentEditable || win.document.designMode == "on") {
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return false;
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}
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if (
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win.HTMLTextAreaElement.isInstance(elt) ||
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win.HTMLSelectElement.isInstance(elt) ||
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win.HTMLObjectElement.isInstance(elt) ||
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win.HTMLEmbedElement.isInstance(elt)
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) {
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return false;
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}
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if (
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(win.HTMLIFrameElement.isInstance(elt) && elt.mozbrowser) ||
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win.XULFrameElement.isInstance(elt)
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) {
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// If we're targeting a mozbrowser iframe or an embedded XULFrameElement
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// (e.g. about:addons extensions inline options page), do not activate
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// fast find.
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return false;
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}
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}
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return true;
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}
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}
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XPCOMUtils.defineLazyPreferenceGetter(
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FindBarChild,
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"findAsYouType",
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"accessibility.typeaheadfind"
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);
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XPCOMUtils.defineLazyPreferenceGetter(
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FindBarChild,
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"manualFAYT",
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"accessibility.typeaheadfind.manual"
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);
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