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+/*
+ * Copyright (C) 2016 Alex Yatskov <alex@foosoft.net>
+ * Author: Alex Yatskov <alex@foosoft.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+class Client {
+ constructor() {
+ this.popup = new Popup();
+ this.lastMousePos = null;
+ this.lastRange = null;
+ this.activateKey = 16;
+ this.activateBtn = 2;
+ this.enabled = false;
+ this.options = {};
+ this.definitions = null;
+ this.sequence = 0;
+ this.fgRoot = chrome.extension.getURL('fg');
+
+ chrome.runtime.onMessage.addListener(this.onBgMessage.bind(this));
+ window.addEventListener('message', this.onFrameMessage.bind(this));
+ window.addEventListener('mousedown', this.onMouseDown.bind(this));
+ window.addEventListener('mousemove', this.onMouseMove.bind(this));
+ window.addEventListener('keydown', this.onKeyDown.bind(this));
+ window.addEventListener('scroll', (e) => this.hidePopup());
+ window.addEventListener('resize', (e) => this.hidePopup());
+
+ bgGetOptions((opts) => {
+ this.setOptions(opts);
+ bgGetState((state) => this.setEnabled(state === 'enabled'));
+ });
+ }
+
+ onKeyDown(e) {
+ if (this.enabled && this.lastMousePos !== null && (e.keyCode === this.activateKey || e.charCode === this.activateKey)) {
+ this.searchAt(this.lastMousePos);
+ }
+ }
+
+ onMouseMove(e) {
+ this.lastMousePos = {x: e.clientX, y: e.clientY};
+ if (this.enabled && (e.shiftKey || e.which === this.activateBtn)) {
+ this.searchAt(this.lastMousePos);
+ }
+ }
+
+ onMouseDown(e) {
+ this.lastMousePos = {x: e.clientX, y: e.clientY};
+ if (this.enabled && (e.shiftKey || e.which === this.activateBtn)) {
+ this.searchAt(this.lastMousePos);
+ } else {
+ this.hidePopup();
+ }
+ }
+
+ onBgMessage({name, value}, sender, callback) {
+ switch (name) {
+ case 'state':
+ this.setEnabled(value === 'enabled');
+ break;
+ case 'options':
+ this.setOptions(value);
+ break;
+ }
+
+ callback();
+ }
+
+ onFrameMessage(e) {
+ const {action, params} = e.data, handlers = {
+ addNote: ({mode, index}) => this.actionAddNote(mode, index, (data) => e.source.postMessage(data, e.origin)),
+ displayKanji: this.actionDisplayKanji
+ };
+
+ if (handlers.hasOwnProperty(action)) {
+ handlers[action].call(this, params);
+ }
+ }
+
+ searchAt(point) {
+ const range = Range.fromPoint(point);
+ if (range === null || !range.containsPoint(point)) {
+ this.hidePopup();
+ return;
+ }
+
+ if (this.lastRange !== null && this.lastRange.compareOrigin(range) === 0) {
+ return;
+ }
+
+ range.setLength(this.options.scanLength);
+ bgFindTerm(range.text(), ({definitions, length}) => {
+ if (length === 0) {
+ this.hidePopup();
+ } else {
+ const sequence = this.sequence++;
+ range.setLength(length);
+ bgRenderText(
+ {defs: definitions, root: this.fgRoot, options: this.options, sequence: sequence},
+ 'term-list.html',
+ (content) => {
+ this.definitions = definitions;
+ this.showPopup(range, content);
+
+ bgCanAddNotes(definitions, (states) => {
+ if (states !== null) {
+ states.forEach((state, index) => this.popup.sendMessage(
+ 'setActionState',
+ {index: index, state: state, sequence: sequence}
+ ));
+ }
+ });
+ }
+ );
+ }
+ });
+ }
+
+ actionAddNote(mode, index, callback) {
+ const state = {};
+ state[mode] = false;
+
+ this.popup.sendMessage(
+ 'setActionState',
+ {index: index, state: state, sequence: this.sequence}
+ );
+ }
+
+ actionDisplayKanji(kanji) {
+ bgFindKanji(kanji, (definitions) => {
+ const sequence = this.sequence++;
+ bgRenderText(
+ {defs: definitions, root: this.fgRoot, options: this.options, sequence: sequence},
+ 'kanji-list.html',
+ (content) => {
+ this.definitions = definitions;
+ this.popup.setContent(content, definitions);
+
+ bgCanAddNotes(definitions, (states) => {
+ if (states !== null) {
+ states.forEach((state, index) => this.popup.sendMessage(
+ 'setActionState',
+ {index: index, state: state, sequence: sequence}
+ ));
+ }
+ });
+ }
+ );
+ });
+ }
+
+ showPopup(range, content) {
+ this.popup.showNextTo(range.getRect(), content);
+
+ if (this.options.selectMatchedText) {
+ range.select();
+ }
+
+ this.lastRange = range;
+ }
+
+ hidePopup() {
+ this.popup.hide();
+
+ if (this.options.selectMatchedText && this.lastRange !== null) {
+ this.lastRange.deselect();
+ }
+
+ this.lastRange = null;
+ this.definitions = null;
+ }
+
+ setEnabled(enabled) {
+ if (!(this.enabled = enabled)) {
+ this.hidePopup();
+ }
+ }
+
+ setOptions(opts) {
+ this.options = opts;
+ }
+}
+
+window.yomiClient = new Client();