зеркало из https://github.com/mozilla/gecko-dev.git
577 строки
17 KiB
JavaScript
577 строки
17 KiB
JavaScript
/* 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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var EXPORTED_SYMBOLS = ["InlineSpellChecker", "SpellCheckHelper"];
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const MAX_UNDO_STACK_DEPTH = 1;
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const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
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function InlineSpellChecker(aEditor) {
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this.init(aEditor);
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this.mAddedWordStack = []; // We init this here to preserve it between init/uninit calls
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}
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InlineSpellChecker.prototype = {
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// Call this function to initialize for a given editor
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init(aEditor) {
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this.uninit();
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this.mEditor = aEditor;
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try {
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this.mInlineSpellChecker = this.mEditor.getInlineSpellChecker(true);
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// note: this might have been NULL if there is no chance we can spellcheck
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} catch (e) {
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this.mInlineSpellChecker = null;
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}
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},
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initFromRemote(aSpellInfo, aWindowGlobalParent) {
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if (this.mRemote) {
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throw new Error("Unexpected state");
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}
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this.uninit();
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if (!aSpellInfo) {
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return;
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}
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this.mInlineSpellChecker = this.mRemote = new RemoteSpellChecker(
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aSpellInfo,
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aWindowGlobalParent
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);
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this.mOverMisspelling = aSpellInfo.overMisspelling;
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this.mMisspelling = aSpellInfo.misspelling;
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},
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// call this to clear state
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uninit() {
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if (this.mRemote) {
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this.mRemote.uninit();
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this.mRemote = null;
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}
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this.mEditor = null;
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this.mInlineSpellChecker = null;
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this.mOverMisspelling = false;
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this.mMisspelling = "";
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this.mMenu = null;
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this.mSpellSuggestions = [];
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this.mSuggestionItems = [];
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this.mDictionaryMenu = null;
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this.mDictionaryItems = [];
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this.mWordNode = null;
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},
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// for each UI event, you must call this function, it will compute the
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// word the cursor is over
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initFromEvent(rangeParent, rangeOffset) {
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this.mOverMisspelling = false;
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if (!rangeParent || !this.mInlineSpellChecker) {
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return;
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}
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var selcon = this.mEditor.selectionController;
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var spellsel = selcon.getSelection(selcon.SELECTION_SPELLCHECK);
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if (spellsel.rangeCount == 0) {
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return;
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} // easy case - no misspellings
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var range = this.mInlineSpellChecker.getMisspelledWord(
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rangeParent,
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rangeOffset
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);
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if (!range) {
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return;
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} // not over a misspelled word
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this.mMisspelling = range.toString();
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this.mOverMisspelling = true;
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this.mWordNode = rangeParent;
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this.mWordOffset = rangeOffset;
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},
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// returns false if there should be no spellchecking UI enabled at all, true
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// means that you can at least give the user the ability to turn it on.
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get canSpellCheck() {
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// inline spell checker objects will be created only if there are actual
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// dictionaries available
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if (this.mRemote) {
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return this.mRemote.canSpellCheck;
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}
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return this.mInlineSpellChecker != null;
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},
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get initialSpellCheckPending() {
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if (this.mRemote) {
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return this.mRemote.spellCheckPending;
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}
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return !!(
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this.mInlineSpellChecker &&
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!this.mInlineSpellChecker.spellChecker &&
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this.mInlineSpellChecker.spellCheckPending
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);
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},
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// Whether spellchecking is enabled in the current box
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get enabled() {
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if (this.mRemote) {
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return this.mRemote.enableRealTimeSpell;
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}
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return (
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this.mInlineSpellChecker && this.mInlineSpellChecker.enableRealTimeSpell
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);
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},
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set enabled(isEnabled) {
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if (this.mRemote) {
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this.mRemote.setSpellcheckUserOverride(isEnabled);
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} else if (this.mInlineSpellChecker) {
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this.mEditor.setSpellcheckUserOverride(isEnabled);
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}
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},
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// returns true if the given event is over a misspelled word
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get overMisspelling() {
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return this.mOverMisspelling;
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},
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// this prepends up to "maxNumber" suggestions at the given menu position
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// for the word under the cursor. Returns the number of suggestions inserted.
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addSuggestionsToMenu(menu, insertBefore, maxNumber) {
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if (
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!this.mRemote &&
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(!this.mInlineSpellChecker || !this.mOverMisspelling)
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) {
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return 0;
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} // nothing to do
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var spellchecker = this.mRemote || this.mInlineSpellChecker.spellChecker;
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try {
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if (!this.mRemote && !spellchecker.CheckCurrentWord(this.mMisspelling)) {
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return 0;
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} // word seems not misspelled after all (?)
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} catch (e) {
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return 0;
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}
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this.mMenu = menu;
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this.mSpellSuggestions = [];
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this.mSuggestionItems = [];
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for (var i = 0; i < maxNumber; i++) {
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var suggestion = spellchecker.GetSuggestedWord();
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if (!suggestion.length) {
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break;
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}
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this.mSpellSuggestions.push(suggestion);
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var item = menu.ownerDocument.createXULElement("menuitem");
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this.mSuggestionItems.push(item);
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item.setAttribute("label", suggestion);
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item.setAttribute("value", suggestion);
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// this function thing is necessary to generate a callback with the
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// correct binding of "val" (the index in this loop).
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var callback = function(me, val) {
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return function(evt) {
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me.replaceMisspelling(val);
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};
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};
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item.addEventListener("command", callback(this, i), true);
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item.setAttribute("class", "spell-suggestion");
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menu.insertBefore(item, insertBefore);
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}
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return this.mSpellSuggestions.length;
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},
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// undoes the work of addSuggestionsToMenu for the same menu
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// (call from popup hiding)
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clearSuggestionsFromMenu() {
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for (var i = 0; i < this.mSuggestionItems.length; i++) {
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this.mMenu.removeChild(this.mSuggestionItems[i]);
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}
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this.mSuggestionItems = [];
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},
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sortDictionaryList(list) {
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var sortedList = [];
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var names = Services.intl.getLocaleDisplayNames(undefined, list);
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for (var i = 0; i < list.length; i++) {
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sortedList.push({ localeCode: list[i], displayName: names[i] });
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}
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let comparer = new Services.intl.Collator().compare;
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sortedList.sort((a, b) => comparer(a.displayName, b.displayName));
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return sortedList;
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},
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// returns the number of dictionary languages. If insertBefore is NULL, this
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// does an append to the given menu
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addDictionaryListToMenu(menu, insertBefore) {
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this.mDictionaryMenu = menu;
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this.mDictionaryItems = [];
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if (!this.enabled) {
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return 0;
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}
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var list;
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var curlang = "";
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if (this.mRemote) {
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list = this.mRemote.dictionaryList;
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curlang = this.mRemote.currentDictionary;
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} else if (this.mInlineSpellChecker) {
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var spellchecker = this.mInlineSpellChecker.spellChecker;
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list = spellchecker.GetDictionaryList();
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try {
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curlang = spellchecker.GetCurrentDictionary();
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} catch (e) {}
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}
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var sortedList = this.sortDictionaryList(list);
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for (var i = 0; i < sortedList.length; i++) {
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var item = menu.ownerDocument.createXULElement("menuitem");
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item.setAttribute(
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"id",
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"spell-check-dictionary-" + sortedList[i].localeCode
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);
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// XXX: Once Fluent has dynamic references, we could also lazily
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// inject regionNames/languageNames FTL and localize using
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// `l10n-id` here.
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item.setAttribute("label", sortedList[i].displayName);
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item.setAttribute("type", "radio");
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this.mDictionaryItems.push(item);
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if (curlang == sortedList[i].localeCode) {
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item.setAttribute("checked", "true");
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} else {
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var callback = function(me, localeCode) {
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return function(evt) {
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me.selectDictionary(localeCode);
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// Notify change of dictionary, especially for Thunderbird,
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// which is otherwise not notified any more.
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var view = menu.ownerGlobal;
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var spellcheckChangeEvent = new view.CustomEvent(
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"spellcheck-changed",
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{ detail: { dictionary: localeCode } }
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);
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menu.ownerDocument.dispatchEvent(spellcheckChangeEvent);
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};
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};
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item.addEventListener(
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"command",
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callback(this, sortedList[i].localeCode),
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true
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);
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}
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if (insertBefore) {
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menu.insertBefore(item, insertBefore);
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} else {
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menu.appendChild(item);
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}
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}
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return list.length;
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},
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// undoes the work of addDictionaryListToMenu for the menu
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// (call on popup hiding)
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clearDictionaryListFromMenu() {
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for (var i = 0; i < this.mDictionaryItems.length; i++) {
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this.mDictionaryMenu.removeChild(this.mDictionaryItems[i]);
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}
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this.mDictionaryItems = [];
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},
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// callback for selecting a dictionary
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selectDictionary(localeCode) {
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if (this.mRemote) {
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this.mRemote.selectDictionary(localeCode);
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return;
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}
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if (!this.mInlineSpellChecker) {
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return;
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}
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var spellchecker = this.mInlineSpellChecker.spellChecker;
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spellchecker.SetCurrentDictionary(localeCode);
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this.mInlineSpellChecker.spellCheckRange(null); // causes recheck
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},
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// callback for selecting a suggested replacement
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replaceMisspelling(index) {
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if (this.mRemote) {
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this.mRemote.replaceMisspelling(index);
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return;
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}
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if (!this.mInlineSpellChecker || !this.mOverMisspelling) {
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return;
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}
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if (index < 0 || index >= this.mSpellSuggestions.length) {
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return;
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}
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this.mInlineSpellChecker.replaceWord(
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this.mWordNode,
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this.mWordOffset,
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this.mSpellSuggestions[index]
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);
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},
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// callback for enabling or disabling spellchecking
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toggleEnabled() {
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if (this.mRemote) {
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this.mRemote.toggleEnabled();
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} else {
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this.mEditor.setSpellcheckUserOverride(
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!this.mInlineSpellChecker.enableRealTimeSpell
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);
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}
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},
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// callback for adding the current misspelling to the user-defined dictionary
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addToDictionary() {
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// Prevent the undo stack from growing over the max depth
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if (this.mAddedWordStack.length == MAX_UNDO_STACK_DEPTH) {
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this.mAddedWordStack.shift();
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}
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this.mAddedWordStack.push(this.mMisspelling);
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if (this.mRemote) {
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this.mRemote.addToDictionary();
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} else {
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this.mInlineSpellChecker.addWordToDictionary(this.mMisspelling);
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}
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},
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// callback for removing the last added word to the dictionary LIFO fashion
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undoAddToDictionary() {
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if (this.mAddedWordStack.length) {
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var word = this.mAddedWordStack.pop();
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if (this.mRemote) {
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this.mRemote.undoAddToDictionary(word);
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} else {
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this.mInlineSpellChecker.removeWordFromDictionary(word);
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}
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}
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},
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canUndo() {
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// Return true if we have words on the stack
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return !!this.mAddedWordStack.length;
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},
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ignoreWord() {
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if (this.mRemote) {
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this.mRemote.ignoreWord();
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} else {
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this.mInlineSpellChecker.ignoreWord(this.mMisspelling);
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}
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},
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};
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var SpellCheckHelper = {
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// Set when over a non-read-only <textarea> or editable <input>
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// (that allows text entry of some kind, so not e.g. <input type=checkbox>)
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EDITABLE: 0x1,
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// Set when over an <input> element of any type.
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INPUT: 0x2,
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// Set when over any <textarea>.
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TEXTAREA: 0x4,
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// Set when over any text-entry <input>.
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TEXTINPUT: 0x8,
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// Set when over an <input> that can be used as a keyword field.
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KEYWORD: 0x10,
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// Set when over an element that otherwise would not be considered
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// "editable" but is because content editable is enabled for the document.
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CONTENTEDITABLE: 0x20,
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// Set when over an <input type="number"> or other non-text field.
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NUMERIC: 0x40,
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// Set when over an <input type="password"> field.
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PASSWORD: 0x80,
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// Set when spellcheckable. Replaces `EDITABLE`/`CONTENTEDITABLE` combination
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// specifically for spellcheck.
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SPELLCHECKABLE: 0x100,
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isTargetAKeywordField(aNode, window) {
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if (!(aNode instanceof window.HTMLInputElement)) {
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return false;
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}
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var form = aNode.form;
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if (!form || aNode.type == "password") {
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return false;
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}
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var method = form.method.toUpperCase();
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// These are the following types of forms we can create keywords for:
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//
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// method encoding type can create keyword
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// GET * YES
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// * YES
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// POST YES
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// POST application/x-www-form-urlencoded YES
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// POST text/plain NO (a little tricky to do)
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// POST multipart/form-data NO
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// POST everything else YES
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return (
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method == "GET" ||
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method == "" ||
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(form.enctype != "text/plain" && form.enctype != "multipart/form-data")
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);
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},
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// Returns the computed style attribute for the given element.
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getComputedStyle(aElem, aProp) {
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return aElem.ownerGlobal.getComputedStyle(aElem).getPropertyValue(aProp);
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},
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isEditable(element, window) {
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var flags = 0;
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if (element instanceof window.HTMLInputElement) {
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flags |= this.INPUT;
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if (element.mozIsTextField(false) || element.type == "number") {
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flags |= this.TEXTINPUT;
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if (!element.readOnly) {
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flags |= this.EDITABLE;
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}
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if (element.type == "number") {
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flags |= this.NUMERIC;
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}
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// Allow spellchecking UI on all text and search inputs.
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if (
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!element.readOnly &&
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(element.type == "text" || element.type == "search")
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) {
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flags |= this.SPELLCHECKABLE;
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}
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if (this.isTargetAKeywordField(element, window)) {
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flags |= this.KEYWORD;
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}
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if (element.type == "password") {
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flags |= this.PASSWORD;
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}
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}
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} else if (element instanceof window.HTMLTextAreaElement) {
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flags |= this.TEXTINPUT | this.TEXTAREA;
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if (!element.readOnly) {
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flags |= this.SPELLCHECKABLE | this.EDITABLE;
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}
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}
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if (!(flags & this.SPELLCHECKABLE)) {
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var win = element.ownerGlobal;
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if (win) {
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var isSpellcheckable = false;
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try {
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var editingSession = win.docShell.editingSession;
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if (
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editingSession.windowIsEditable(win) &&
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this.getComputedStyle(element, "-moz-user-modify") == "read-write"
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) {
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isSpellcheckable = true;
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}
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} catch (ex) {
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// If someone built with composer disabled, we can't get an editing session.
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}
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if (isSpellcheckable) {
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flags |= this.CONTENTEDITABLE | this.SPELLCHECKABLE;
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}
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}
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}
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return flags;
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},
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};
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function RemoteSpellChecker(aSpellInfo, aWindowGlobalParent) {
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this._spellInfo = aSpellInfo;
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this._suggestionGenerator = null;
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this._actor = aWindowGlobalParent.getActor("InlineSpellChecker");
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}
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RemoteSpellChecker.prototype = {
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get canSpellCheck() {
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return this._spellInfo.canSpellCheck;
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},
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get spellCheckPending() {
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return this._spellInfo.initialSpellCheckPending;
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},
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get overMisspelling() {
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return this._spellInfo.overMisspelling;
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},
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get enableRealTimeSpell() {
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return this._spellInfo.enableRealTimeSpell;
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},
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GetSuggestedWord() {
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if (!this._suggestionGenerator) {
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this._suggestionGenerator = (function*(spellInfo) {
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for (let i of spellInfo.spellSuggestions) {
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yield i;
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}
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})(this._spellInfo);
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}
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let next = this._suggestionGenerator.next();
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if (next.done) {
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this._suggestionGenerator = null;
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return "";
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}
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return next.value;
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},
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get currentDictionary() {
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return this._spellInfo.currentDictionary;
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},
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get dictionaryList() {
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return this._spellInfo.dictionaryList.slice();
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},
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selectDictionary(localeCode) {
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this._actor.selectDictionary({ localeCode });
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},
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replaceMisspelling(index) {
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this._actor.replaceMisspelling({ index });
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},
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toggleEnabled() {
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this._actor.toggleEnabled();
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},
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|
addToDictionary() {
|
|
// This is really ugly. There is an nsISpellChecker somewhere in the
|
|
// parent that corresponds to our current element's spell checker in the
|
|
// child, but it's hard to access it. However, we know that
|
|
// addToDictionary adds the word to the singleton personal dictionary, so
|
|
// we just do that here.
|
|
// NB: We also rely on the fact that we only ever pass an empty string in
|
|
// as the "lang".
|
|
|
|
let dictionary = Cc[
|
|
"@mozilla.org/spellchecker/personaldictionary;1"
|
|
].getService(Ci.mozIPersonalDictionary);
|
|
dictionary.addWord(this._spellInfo.misspelling);
|
|
this._actor.recheckSpelling();
|
|
},
|
|
undoAddToDictionary(word) {
|
|
let dictionary = Cc[
|
|
"@mozilla.org/spellchecker/personaldictionary;1"
|
|
].getService(Ci.mozIPersonalDictionary);
|
|
dictionary.removeWord(word);
|
|
this._actor.recheckSpelling();
|
|
},
|
|
ignoreWord() {
|
|
let dictionary = Cc[
|
|
"@mozilla.org/spellchecker/personaldictionary;1"
|
|
].getService(Ci.mozIPersonalDictionary);
|
|
dictionary.ignoreWord(this._spellInfo.misspelling);
|
|
this._actor.recheckSpelling();
|
|
},
|
|
uninit() {
|
|
this._actor.uninit();
|
|
},
|
|
};
|