1 files changed, 83 insertions, 0 deletions
diff --git a/ext/bg/js/yomichan.js b/ext/bg/js/yomichan.js
new file mode 100644
index 00000000..2e4552a1
--- /dev/null
+++ b/ext/bg/js/yomichan.js
@@ -0,0 +1,83 @@
+/*
+ * 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 Yomichan {
+    constructor() {
+        Handlebars.partials = Handlebars.templates;
+
+        this.translator = new Translator();
+        this.updateState('disabled');
+
+        chrome.runtime.onMessage.addListener(this.onMessage.bind(this));
+        chrome.browserAction.onClicked.addListener(this.onBrowserAction.bind(this));
+    }
+
+    onMessage(request, sender, callback) {
+        const {action, data} = request;
+        const handler = {
+            findKanji:      ({text}) => this.translator.onFindKanji(text),
+            findTerm:       ({text}) => this.translator.findTerm(text),
+            getState:       () => this.state,
+            renderTemplate: ({data, template}) => Handlebars.templates[template](data)
+        }[action];
+
+        if (handler !== null) {
+            const result = handler.call(this, data);
+            if (callback !== null) {
+                callback(result);
+            }
+        }
+    }
+
+    onBrowserAction(tab) {
+        switch (this.state) {
+            case 'disabled':
+                this.updateState('loading');
+                break;
+            case 'enabled':
+                this.updateState('disabled');
+                break;
+        }
+    }
+
+    updateState(state) {
+        this.state = state;
+
+        switch (state) {
+            case 'disabled':
+                chrome.browserAction.setBadgeText({text: ''});
+                break;
+            case 'enabled':
+                chrome.browserAction.setBadgeText({text: 'on'});
+                break;
+            case 'loading':
+                chrome.browserAction.setBadgeText({text: '...'});
+                this.translator.loadData(() => this.updateState('enabled'));
+                break;
+        }
+
+        chrome.tabs.query({}, (tabs) => {
+            for (const tab of tabs) {
+                chrome.tabs.sendMessage(tab.id, this.state, () => null);
+            }
+        });
+    }
+}
+
+window.yomichan = new Yomichan();