diff options
Diffstat (limited to 'browser/components/preferences/dialogs/languages.js')
| -rw-r--r-- | browser/components/preferences/dialogs/languages.js | 384 |
1 files changed, 384 insertions, 0 deletions
diff --git a/browser/components/preferences/dialogs/languages.js b/browser/components/preferences/dialogs/languages.js new file mode 100644 index 0000000000..502a083c8b --- /dev/null +++ b/browser/components/preferences/dialogs/languages.js @@ -0,0 +1,384 @@ +/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */ +/* 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-globals-from /toolkit/content/preferencesBindings.js */ + +document + .getElementById("LanguagesDialog") + .addEventListener("dialoghelp", window.top.openPrefsHelp); + +Preferences.addAll([ + { id: "intl.accept_languages", type: "wstring" }, + { id: "pref.browser.language.disable_button.up", type: "bool" }, + { id: "pref.browser.language.disable_button.down", type: "bool" }, + { id: "pref.browser.language.disable_button.remove", type: "bool" }, + { id: "privacy.spoof_english", type: "int" }, +]); + +var gLanguagesDialog = { + _availableLanguagesList: [], + _acceptLanguages: {}, + + _selectedItemID: null, + + onLoad() { + let spoofEnglishElement = document.getElementById("spoofEnglish"); + Preferences.addSyncFromPrefListener(spoofEnglishElement, () => + gLanguagesDialog.readSpoofEnglish() + ); + Preferences.addSyncToPrefListener(spoofEnglishElement, () => + gLanguagesDialog.writeSpoofEnglish() + ); + + Preferences.get("intl.accept_languages").on("change", () => + this._readAcceptLanguages().catch(console.error) + ); + + if (!this._availableLanguagesList.length) { + document.mozSubdialogReady = this._loadAvailableLanguages(); + } + }, + + get _activeLanguages() { + return document.getElementById("activeLanguages"); + }, + + get _availableLanguages() { + return document.getElementById("availableLanguages"); + }, + + async _loadAvailableLanguages() { + // This is a parser for: resource://gre/res/language.properties + // The file is formatted like so: + // ab[-cd].accept=true|false + // ab = language + // cd = region + var bundleAccepted = document.getElementById("bundleAccepted"); + + function LocaleInfo(aLocaleName, aLocaleCode, aIsVisible) { + this.name = aLocaleName; + this.code = aLocaleCode; + this.isVisible = aIsVisible; + } + + // 1) Read the available languages out of language.properties + + let localeCodes = []; + let localeValues = []; + for (let currString of bundleAccepted.strings) { + var property = currString.key.split("."); // ab[-cd].accept + if (property[1] == "accept") { + localeCodes.push(property[0]); + localeValues.push(currString.value); + } + } + + let localeNames = Services.intl.getLocaleDisplayNames( + undefined, + localeCodes + ); + + for (let i in localeCodes) { + let isVisible = + localeValues[i] == "true" && + (!(localeCodes[i] in this._acceptLanguages) || + !this._acceptLanguages[localeCodes[i]]); + + let li = new LocaleInfo(localeNames[i], localeCodes[i], isVisible); + this._availableLanguagesList.push(li); + } + + await this._buildAvailableLanguageList(); + await this._readAcceptLanguages(); + }, + + async _buildAvailableLanguageList() { + var availableLanguagesPopup = document.getElementById( + "availableLanguagesPopup" + ); + while (availableLanguagesPopup.hasChildNodes()) { + availableLanguagesPopup.firstChild.remove(); + } + + let frag = document.createDocumentFragment(); + + // Load the UI with the data + for (var i = 0; i < this._availableLanguagesList.length; ++i) { + let locale = this._availableLanguagesList[i]; + let localeCode = locale.code; + if ( + locale.isVisible && + (!(localeCode in this._acceptLanguages) || + !this._acceptLanguages[localeCode]) + ) { + var menuitem = document.createXULElement("menuitem"); + menuitem.id = localeCode; + document.l10n.setAttributes(menuitem, "languages-code-format", { + locale: locale.name, + code: localeCode, + }); + frag.appendChild(menuitem); + } + } + + await document.l10n.translateFragment(frag); + + // Sort the list of languages by name + let comp = new Services.intl.Collator(undefined, { + usage: "sort", + }); + + let items = Array.from(frag.children); + + items.sort((a, b) => { + return comp.compare(a.getAttribute("label"), b.getAttribute("label")); + }); + + // Re-append items in the correct order: + items.forEach(item => frag.appendChild(item)); + + availableLanguagesPopup.appendChild(frag); + + this._availableLanguages.setAttribute( + "label", + this._availableLanguages.getAttribute("placeholder") + ); + }, + + async _readAcceptLanguages() { + while (this._activeLanguages.hasChildNodes()) { + this._activeLanguages.firstChild.remove(); + } + + var selectedIndex = 0; + var preference = Preferences.get("intl.accept_languages"); + if (preference.value == "") { + return; + } + var languages = preference.value.toLowerCase().split(/\s*,\s*/); + for (var i = 0; i < languages.length; ++i) { + var listitem = document.createXULElement("richlistitem"); + var label = document.createXULElement("label"); + listitem.appendChild(label); + listitem.id = languages[i]; + if (languages[i] == this._selectedItemID) { + selectedIndex = i; + } + this._activeLanguages.appendChild(listitem); + var localeName = this._getLocaleName(languages[i]); + document.l10n.setAttributes(label, "languages-active-code-format", { + locale: localeName, + code: languages[i], + }); + + // Hash this language as an "Active" language so we don't + // show it in the list that can be added. + this._acceptLanguages[languages[i]] = true; + } + + // We're forcing an early localization here because otherwise + // the initial sizing of the dialog will happen before it and + // result in overflow. + await document.l10n.translateFragment(this._activeLanguages); + + if (this._activeLanguages.childNodes.length) { + this._activeLanguages.ensureIndexIsVisible(selectedIndex); + this._activeLanguages.selectedIndex = selectedIndex; + } + + // Update states of accept-language list and buttons according to + // privacy.resistFingerprinting and privacy.spoof_english. + this.readSpoofEnglish(); + }, + + onAvailableLanguageSelect() { + var availableLanguages = this._availableLanguages; + var addButton = document.getElementById("addButton"); + addButton.disabled = + availableLanguages.disabled || availableLanguages.selectedIndex < 0; + + this._availableLanguages.removeAttribute("accesskey"); + }, + + addLanguage() { + var selectedID = this._availableLanguages.selectedItem.id; + var preference = Preferences.get("intl.accept_languages"); + var arrayOfPrefs = preference.value.toLowerCase().split(/\s*,\s*/); + for (var i = 0; i < arrayOfPrefs.length; ++i) { + if (arrayOfPrefs[i] == selectedID) { + return; + } + } + + this._selectedItemID = selectedID; + + if (preference.value == "") { + preference.value = selectedID; + } else { + arrayOfPrefs.unshift(selectedID); + preference.value = arrayOfPrefs.join(","); + } + + this._acceptLanguages[selectedID] = true; + this._availableLanguages.selectedItem = null; + + // Rebuild the available list with the added item removed... + this._buildAvailableLanguageList().catch(console.error); + }, + + removeLanguage() { + // Build the new preference value string. + var languagesArray = []; + for (var i = 0; i < this._activeLanguages.childNodes.length; ++i) { + var item = this._activeLanguages.childNodes[i]; + if (!item.selected) { + languagesArray.push(item.id); + } else { + this._acceptLanguages[item.id] = false; + } + } + var string = languagesArray.join(","); + + // Get the item to select after the remove operation completes. + var selection = this._activeLanguages.selectedItems; + var lastSelected = selection[selection.length - 1]; + var selectItem = lastSelected.nextSibling || lastSelected.previousSibling; + selectItem = selectItem ? selectItem.id : null; + + this._selectedItemID = selectItem; + + // Update the preference and force a UI rebuild + var preference = Preferences.get("intl.accept_languages"); + preference.value = string; + + this._buildAvailableLanguageList().catch(console.error); + }, + + _getLocaleName(localeCode) { + if (!this._availableLanguagesList.length) { + this._loadAvailableLanguages(); + } + let languageName = ""; + for (var i = 0; i < this._availableLanguagesList.length; ++i) { + if (localeCode == this._availableLanguagesList[i].code) { + return this._availableLanguagesList[i].name; + } + // Try resolving the locale code without region code. Can't return + // directly because there might be a perfect match later. + if (localeCode.split("-")[0] == this._availableLanguagesList[i].code) { + languageName = this._availableLanguagesList[i].name; + } + } + + return languageName; + }, + + moveUp() { + var selectedItem = this._activeLanguages.selectedItems[0]; + var previousItem = selectedItem.previousSibling; + + var string = ""; + for (var i = 0; i < this._activeLanguages.childNodes.length; ++i) { + var item = this._activeLanguages.childNodes[i]; + string += i == 0 ? "" : ","; + if (item.id == previousItem.id) { + string += selectedItem.id; + } else if (item.id == selectedItem.id) { + string += previousItem.id; + } else { + string += item.id; + } + } + + this._selectedItemID = selectedItem.id; + + // Update the preference and force a UI rebuild + var preference = Preferences.get("intl.accept_languages"); + preference.value = string; + }, + + moveDown() { + var selectedItem = this._activeLanguages.selectedItems[0]; + var nextItem = selectedItem.nextSibling; + + var string = ""; + for (var i = 0; i < this._activeLanguages.childNodes.length; ++i) { + var item = this._activeLanguages.childNodes[i]; + string += i == 0 ? "" : ","; + if (item.id == nextItem.id) { + string += selectedItem.id; + } else if (item.id == selectedItem.id) { + string += nextItem.id; + } else { + string += item.id; + } + } + + this._selectedItemID = selectedItem.id; + + // Update the preference and force a UI rebuild + var preference = Preferences.get("intl.accept_languages"); + preference.value = string; + }, + + onLanguageSelect() { + var upButton = document.getElementById("up"); + var downButton = document.getElementById("down"); + var removeButton = document.getElementById("remove"); + switch (this._activeLanguages.selectedCount) { + case 0: + upButton.disabled = downButton.disabled = removeButton.disabled = true; + break; + case 1: + upButton.disabled = this._activeLanguages.selectedIndex == 0; + downButton.disabled = + this._activeLanguages.selectedIndex == + this._activeLanguages.childNodes.length - 1; + removeButton.disabled = false; + break; + default: + upButton.disabled = true; + downButton.disabled = true; + removeButton.disabled = false; + } + }, + + readSpoofEnglish() { + var checkbox = document.getElementById("spoofEnglish"); + var resistFingerprinting = Services.prefs.getBoolPref( + "privacy.resistFingerprinting" + ); + if (!resistFingerprinting) { + checkbox.hidden = true; + return false; + } + + var spoofEnglish = Preferences.get("privacy.spoof_english").value; + var activeLanguages = this._activeLanguages; + var availableLanguages = this._availableLanguages; + checkbox.hidden = false; + switch (spoofEnglish) { + case 1: // don't spoof intl.accept_languages + activeLanguages.disabled = false; + activeLanguages.selectItem(activeLanguages.firstChild); + availableLanguages.disabled = false; + this.onAvailableLanguageSelect(); + return false; + case 2: // spoof intl.accept_languages + activeLanguages.clearSelection(); + activeLanguages.disabled = true; + availableLanguages.disabled = true; + this.onAvailableLanguageSelect(); + return true; + default: + // will prompt for spoofing intl.accept_languages if resisting fingerprinting + return false; + } + }, + + writeSpoofEnglish() { + return document.getElementById("spoofEnglish").checked ? 2 : 1; + }, +}; |