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Diffstat (limited to '')
| -rw-r--r-- | toolkit/actors/AutoCompleteParent.sys.mjs | 516 |
1 files changed, 516 insertions, 0 deletions
diff --git a/toolkit/actors/AutoCompleteParent.sys.mjs b/toolkit/actors/AutoCompleteParent.sys.mjs new file mode 100644 index 0000000000..82ebf22dcf --- /dev/null +++ b/toolkit/actors/AutoCompleteParent.sys.mjs @@ -0,0 +1,516 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs"; + +const lazy = {}; + +XPCOMUtils.defineLazyModuleGetters(lazy, { + GeckoViewAutocomplete: "resource://gre/modules/GeckoViewAutocomplete.jsm", +}); + +XPCOMUtils.defineLazyPreferenceGetter( + lazy, + "DELEGATE_AUTOCOMPLETE", + "toolkit.autocomplete.delegate", + false +); + +ChromeUtils.defineESModuleGetters(lazy, { + setTimeout: "resource://gre/modules/Timer.sys.mjs", +}); + +const PREF_SECURITY_DELAY = "security.notification_enable_delay"; + +// Stores the actor that has the active popup, used by formfill +let currentActor = null; + +let autoCompleteListeners = new Set(); + +function compareContext(message) { + if ( + !currentActor || + (currentActor.browsingContext != message.data.browsingContext && + currentActor.browsingContext.top != message.data.browsingContext) + ) { + return false; + } + + return true; +} + +// These are two synchronous messages sent by the child. +// The browsingContext within the message data is either the one that has +// the active autocomplete popup or the top-level of the one that has +// the active autocomplete popup. +Services.ppmm.addMessageListener( + "FormAutoComplete:GetSelectedIndex", + message => { + if (compareContext(message)) { + let actor = currentActor; + if (actor && actor.openedPopup) { + return actor.openedPopup.selectedIndex; + } + } + + return -1; + } +); + +Services.ppmm.addMessageListener("FormAutoComplete:SelectBy", message => { + if (compareContext(message)) { + let actor = currentActor; + if (actor && actor.openedPopup) { + actor.openedPopup.selectBy(message.data.reverse, message.data.page); + } + } +}); + +// AutoCompleteResultView is an abstraction around a list of results. +// It implements enough of nsIAutoCompleteController and +// nsIAutoCompleteInput to make the richlistbox popup work. Since only +// one autocomplete popup should be open at a time, this is a singleton. +var AutoCompleteResultView = { + // nsISupports + QueryInterface: ChromeUtils.generateQI([ + "nsIAutoCompleteController", + "nsIAutoCompleteInput", + ]), + + // Private variables + results: [], + + // The AutoCompleteParent currently showing results or null otherwise. + currentActor: null, + + // nsIAutoCompleteController + get matchCount() { + return this.results.length; + }, + + getValueAt(index) { + return this.results[index].value; + }, + + getFinalCompleteValueAt(index) { + return this.results[index].value; + }, + + getLabelAt(index) { + // Backwardly-used by richlist autocomplete - see getCommentAt. + // The label is used for secondary information. + return this.results[index].comment; + }, + + getCommentAt(index) { + // The richlist autocomplete popup uses comment for its main + // display of an item, which is why we're returning the label + // here instead. + return this.results[index].label; + }, + + getStyleAt(index) { + return this.results[index].style; + }, + + getImageAt(index) { + return this.results[index].image; + }, + + handleEnter(aIsPopupSelection) { + if (this.currentActor) { + this.currentActor.handleEnter(aIsPopupSelection); + } + }, + + stopSearch() {}, + + searchString: "", + + // nsIAutoCompleteInput + get controller() { + return this; + }, + + get popup() { + return null; + }, + + _focus() { + if (this.currentActor) { + this.currentActor.requestFocus(); + } + }, + + // Internal JS-only API + clearResults() { + this.currentActor = null; + this.results = []; + }, + + setResults(actor, results) { + this.currentActor = actor; + this.results = results; + }, +}; + +export class AutoCompleteParent extends JSWindowActorParent { + didDestroy() { + if (this.openedPopup) { + this.openedPopup.closePopup(); + } + } + + static getCurrentActor() { + return currentActor; + } + + static addPopupStateListener(listener) { + autoCompleteListeners.add(listener); + } + + static removePopupStateListener(listener) { + autoCompleteListeners.delete(listener); + } + + handleEvent(evt) { + switch (evt.type) { + case "popupshowing": { + this.sendAsyncMessage("FormAutoComplete:PopupOpened", {}); + break; + } + + case "popuphidden": { + let selectedIndex = this.openedPopup.selectedIndex; + let selectedRowComment = + selectedIndex != -1 + ? AutoCompleteResultView.getCommentAt(selectedIndex) + : ""; + let selectedRowStyle = + selectedIndex != -1 + ? AutoCompleteResultView.getStyleAt(selectedIndex) + : ""; + this.sendAsyncMessage("FormAutoComplete:PopupClosed", { + selectedRowComment, + selectedRowStyle, + }); + AutoCompleteResultView.clearResults(); + // adjustHeight clears the height from the popup so that + // we don't have a big shrink effect if we closed with a + // large list, and then open on a small one. + this.openedPopup.adjustHeight(); + this.openedPopup = null; + currentActor = null; + evt.target.removeEventListener("popuphidden", this); + evt.target.removeEventListener("popupshowing", this); + break; + } + } + } + + showPopupWithResults({ rect, dir, results }) { + if (!results.length || this.openedPopup) { + // We shouldn't ever be showing an empty popup, and if we + // already have a popup open, the old one needs to close before + // we consider opening a new one. + return; + } + + let browser = this.browsingContext.top.embedderElement; + let window = browser.ownerGlobal; + // Also check window top in case this is a sidebar. + if ( + Services.focus.activeWindow !== window.top && + Services.focus.focusedWindow.top !== window.top + ) { + // We were sent a message from a window or tab that went into the + // background, so we'll ignore it for now. + return; + } + + // Non-empty result styles + let resultStyles = new Set(results.map(r => r.style).filter(r => !!r)); + currentActor = this; + this.openedPopup = browser.autoCompletePopup; + // the layout varies according to different result type + this.openedPopup.setAttribute("resultstyles", [...resultStyles].join(" ")); + this.openedPopup.hidden = false; + // don't allow the popup to become overly narrow + this.openedPopup.style.setProperty( + "--panel-width", + Math.max(100, rect.width) + "px" + ); + this.openedPopup.style.direction = dir; + + AutoCompleteResultView.setResults(this, results); + this.openedPopup.view = AutoCompleteResultView; + this.openedPopup.selectedIndex = -1; + + // Reset fields that were set from the last time the search popup was open + this.openedPopup.mInput = AutoCompleteResultView; + // Temporarily increase the maxRows as we don't want to show + // the scrollbar in login or form autofill popups. + if ( + resultStyles.size && + (resultStyles.has("autofill-profile") || resultStyles.has("loginsFooter")) + ) { + this.openedPopup._normalMaxRows = this.openedPopup.maxRows; + this.openedPopup.mInput.maxRows = 10; + } + browser.constrainPopup(this.openedPopup); + this.openedPopup.addEventListener("popuphidden", this); + this.openedPopup.addEventListener("popupshowing", this); + this.openedPopup.openPopupAtScreenRect( + "after_start", + rect.left, + rect.top, + rect.width, + rect.height, + false, + false + ); + this.openedPopup.invalidate(); + this._maybeRecordTelemetryEvents(results); + + // This is a temporary solution. We should replace it with + // proper meta information about the popup once such field + // becomes available. + let isCreditCard = results.some(result => + result?.comment?.includes("cc-number") + ); + + if (isCreditCard) { + this.delayPopupInput(); + } + } + + /** + * @param {object[]} results - Non-empty array of autocomplete results. + */ + _maybeRecordTelemetryEvents(results) { + let actor = + this.browsingContext.currentWindowGlobal.getActor("LoginManager"); + actor.maybeRecordPasswordGenerationShownTelemetryEvent(results); + + // Assume the result with the start time (loginsFooter) is last. + let lastResult = results[results.length - 1]; + if (lastResult.style != "loginsFooter") { + return; + } + + // The comment field of `loginsFooter` results have many additional pieces of + // information for telemetry purposes. After bug 1555209, this information + // can be passed to the parent process outside of nsIAutoCompleteResult APIs + // so we won't need this hack. + let rawExtraData = JSON.parse(lastResult.comment).telemetryEventData; + if (!rawExtraData.searchStartTimeMS) { + throw new Error("Invalid autocomplete search start time"); + } + + if (rawExtraData.stringLength > 1) { + // To reduce event volume, only record for lengths 0 and 1. + return; + } + + let duration = + Services.telemetry.msSystemNow() - rawExtraData.searchStartTimeMS; + delete rawExtraData.searchStartTimeMS; + + // Add counts by result style to rawExtraData. + results.reduce((accumulated, r) => { + // Ignore learn more as it is only added after importable logins. + // Do not track generic items in the telemetry. + if (r.style === "importableLearnMore" || r.style === "generic") { + return accumulated; + } + + // Keys can be a maximum of 15 characters and values must be strings. + // Also treat both "loginWithOrigin" and "login" as "login" as extra_keys + // is limited to 10. + let truncatedStyle = r.style.substring( + 0, + r.style === "loginWithOrigin" ? 5 : 15 + ); + accumulated[truncatedStyle] = (accumulated[truncatedStyle] || 0) + 1; + return accumulated; + }, rawExtraData); + + // Convert extra values to strings since recordEvent requires that. + let extraStrings = Object.fromEntries( + Object.entries(rawExtraData).map(([key, val]) => { + let stringVal = ""; + if (typeof val == "boolean") { + stringVal += val ? "1" : "0"; + } else { + stringVal += val; + } + return [key, stringVal]; + }) + ); + + Services.telemetry.recordEvent( + "form_autocomplete", + "show", + "logins", + // Convert to a string + duration + "", + extraStrings + ); + } + + invalidate(results) { + if (!this.openedPopup) { + return; + } + + if (!results.length) { + this.closePopup(); + } else { + AutoCompleteResultView.setResults(this, results); + this.openedPopup.invalidate(); + this._maybeRecordTelemetryEvents(results); + } + } + + closePopup() { + if (this.openedPopup) { + // Note that hidePopup() closes the popup immediately, + // so popuphiding or popuphidden events will be fired + // and handled during this call. + this.openedPopup.hidePopup(); + } + } + + receiveMessage(message) { + let browser = this.browsingContext.top.embedderElement; + + if ( + !browser || + (!lazy.DELEGATE_AUTOCOMPLETE && !browser.autoCompletePopup) + ) { + // If there is no browser or popup, just make sure that the popup has been closed. + if (this.openedPopup) { + this.openedPopup.closePopup(); + } + + // Returning false to pacify ESLint, but this return value is + // ignored by the messaging infrastructure. + return false; + } + + switch (message.name) { + case "FormAutoComplete:SetSelectedIndex": { + let { index } = message.data; + if (this.openedPopup) { + this.openedPopup.selectedIndex = index; + } + break; + } + + case "FormAutoComplete:MaybeOpenPopup": { + let { results, rect, dir, inputElementIdentifier, formOrigin } = + message.data; + if (lazy.DELEGATE_AUTOCOMPLETE) { + lazy.GeckoViewAutocomplete.delegateSelection({ + browsingContext: this.browsingContext, + options: results, + inputElementIdentifier, + formOrigin, + }); + } else { + this.showPopupWithResults({ results, rect, dir }); + this.notifyListeners(); + } + break; + } + + case "FormAutoComplete:Invalidate": { + let { results } = message.data; + this.invalidate(results); + break; + } + + case "FormAutoComplete:ClosePopup": { + if (lazy.DELEGATE_AUTOCOMPLETE) { + lazy.GeckoViewAutocomplete.delegateDismiss(); + break; + } + this.closePopup(); + break; + } + } + // Returning false to pacify ESLint, but this return value is + // ignored by the messaging infrastructure. + return false; + } + + // Imposes a brief period during which the popup will not respond to + // a click, so as to reduce the chances of a successful clickjacking + // attempt + delayPopupInput() { + if (!this.openedPopup) { + return; + } + const popupDelay = Services.prefs.getIntPref(PREF_SECURITY_DELAY); + + // Mochitests set this to 0, and many will fail on integration + // if we make the popup items inactive, even briefly. + if (!popupDelay) { + return; + } + + const items = Array.from( + this.openedPopup.getElementsByTagName("richlistitem") + ); + items.forEach(item => (item.disabled = true)); + + lazy.setTimeout( + () => items.forEach(item => (item.disabled = false)), + popupDelay + ); + } + + notifyListeners() { + let window = this.browsingContext.top.embedderElement.ownerGlobal; + for (let listener of autoCompleteListeners) { + try { + listener(window); + } catch (ex) { + console.error(ex); + } + } + } + + /** + * Despite its name, this handleEnter is only called when the user clicks on + * one of the items in the popup since the popup is rendered in the parent process. + * The real controller's handleEnter is called directly in the content process + * for other methods of completing a selection (e.g. using the tab or enter + * keys) since the field with focus is in that process. + * @param {boolean} aIsPopupSelection + */ + handleEnter(aIsPopupSelection) { + if (this.openedPopup) { + this.sendAsyncMessage("FormAutoComplete:HandleEnter", { + selectedIndex: this.openedPopup.selectedIndex, + isPopupSelection: aIsPopupSelection, + }); + } + } + + stopSearch() {} + + /** + * Sends a message to the browser that is requesting the input + * that the open popup should be focused. + */ + requestFocus() { + // Bug 1582722 - See the response in AutoCompleteChild.jsm for why this disabled. + /* + if (this.openedPopup) { + this.sendAsyncMessage("FormAutoComplete:Focus"); + } + */ + } +} |