diff options
Diffstat (limited to 'toolkit/modules/AsyncPrefs.sys.mjs')
-rw-r--r-- | toolkit/modules/AsyncPrefs.sys.mjs | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/toolkit/modules/AsyncPrefs.sys.mjs b/toolkit/modules/AsyncPrefs.sys.mjs new file mode 100644 index 0000000000..5fa0ea6d6f --- /dev/null +++ b/toolkit/modules/AsyncPrefs.sys.mjs @@ -0,0 +1,159 @@ +/* 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/. */ + +const kInChildProcess = + Services.appinfo.processType == Services.appinfo.PROCESS_TYPE_CONTENT; + +const kAllowedPrefs = new Set([ + // NB: please leave the testing prefs at the top, and sort the rest alphabetically if you add + // anything. + "testing.allowed-prefs.some-bool-pref", + "testing.allowed-prefs.some-char-pref", + "testing.allowed-prefs.some-int-pref", + + "browser.contentblocking.report.hide_vpn_banner", + "browser.contentblocking.report.show_mobile_app", + + "browser.shopping.experience2023.optedIn", + "browser.shopping.experience2023.active", + "browser.shopping.experience2023.ads.userEnabled", + "browser.shopping.experience2023.autoOpen.enabled", + "browser.shopping.experience2023.autoOpen.userEnabled", + "browser.shopping.experience2023.showKeepSidebarClosedMessage", + "browser.shopping.experience2023.sidebarClosedCount", + + "narrate.rate", + "narrate.voice", + + "reader.font_size", + "reader.font_type", + "reader.color_scheme", + "reader.content_width", + "reader.line_height", + + "security.tls.version.enable-deprecated", + "security.xfocsp.errorReporting.automatic", + + "network.trr.display_fallback_warning", +]); + +const kPrefTypeMap = new Map([ + ["boolean", Services.prefs.PREF_BOOL], + ["number", Services.prefs.PREF_INT], + ["string", Services.prefs.PREF_STRING], +]); + +function maybeReturnErrorForReset(pref) { + if (!kAllowedPrefs.has(pref)) { + return `Resetting pref ${pref} from content is not allowed.`; + } + return false; +} + +function maybeReturnErrorForSet(pref, value) { + if (!kAllowedPrefs.has(pref)) { + return `Setting pref ${pref} from content is not allowed.`; + } + + let valueType = typeof value; + if (!kPrefTypeMap.has(valueType)) { + return `Can't set pref ${pref} to value of type ${valueType}.`; + } + let prefType = Services.prefs.getPrefType(pref); + if ( + prefType != Services.prefs.PREF_INVALID && + prefType != kPrefTypeMap.get(valueType) + ) { + return `Can't set pref ${pref} to a value with type ${valueType} that doesn't match the pref's type ${prefType}.`; + } + return false; +} + +export class AsyncPrefsChild extends JSProcessActorChild { + set(pref, value) { + let error = maybeReturnErrorForSet(pref, value); + if (error) { + return Promise.reject(error); + } + + return this.sendQuery("AsyncPrefs:SetPref", { + pref, + value, + }); + } + + reset(pref) { + let error = maybeReturnErrorForReset(pref); + if (error) { + return Promise.reject(error); + } + + return this.sendQuery("AsyncPrefs:ResetPref", { pref }); + } +} + +export var AsyncPrefs = { + set(pref, value) { + if (kInChildProcess) { + return ChromeUtils.domProcessChild + .getActor("AsyncPrefs") + .set(pref, value); + } + return AsyncPrefsParent.set(pref, value); + }, + + reset(pref, value) { + if (kInChildProcess) { + return ChromeUtils.domProcessChild.getActor("AsyncPrefs").reset(pref); + } + return AsyncPrefsParent.reset(pref); + }, +}; + +const methodForType = { + number: "setIntPref", + boolean: "setBoolPref", + string: "setCharPref", +}; + +export class AsyncPrefsParent extends JSProcessActorParent { + static set(pref, value) { + let error = maybeReturnErrorForSet(pref, value); + if (error) { + return Promise.reject(error); + } + let methodToUse = methodForType[typeof value]; + try { + Services.prefs[methodToUse](pref, value); + } catch (ex) { + console.error(ex); + return Promise.reject(ex.message); + } + + return Promise.resolve(value); + } + + static reset(pref) { + let error = maybeReturnErrorForReset(pref); + if (error) { + return Promise.reject(error); + } + + try { + Services.prefs.clearUserPref(pref); + } catch (ex) { + console.error(ex); + return Promise.reject(ex.message); + } + + return Promise.resolve(); + } + + receiveMessage(msg) { + if (msg.name == "AsyncPrefs:SetPref") { + return AsyncPrefsParent.set(msg.data.pref, msg.data.value); + } + return AsyncPrefsParent.reset(msg.data.pref); + } +} |