6 files changed, 117 insertions, 1 deletions
diff --git a/ext/bg/js/api.js b/ext/bg/js/api.js
index 4b2bacd7..b8ef4362 100644
--- a/ext/bg/js/api.js
+++ b/ext/bg/js/api.js
@@ -205,3 +205,8 @@ function apiForward(action, params, sender) {
         chrome.tabs.sendMessage(tabId, {action, params}, (response) => resolve(response));
     });
 }
+
+function apiFrameInformationGet(sender) {
+    const frameId = sender.frameId;
+    return Promise.resolve({frameId});
+}
diff --git a/ext/bg/js/backend-api-forwarder.js b/ext/bg/js/backend-api-forwarder.js
new file mode 100644
index 00000000..979afd16
--- /dev/null
+++ b/ext/bg/js/backend-api-forwarder.js
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2019 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 BackendApiForwarder {
+    constructor() {
+        chrome.runtime.onConnect.addListener(this.onConnect.bind(this));
+    }
+
+    onConnect(port) {
+        if (port.name !== 'backend-api-forwarder') { return; }
+
+        let tabId;
+        if (!(
+            port.sender &&
+            port.sender.tab &&
+            (typeof (tabId = port.sender.tab.id)) === 'number'
+        )) {
+            port.disconnect();
+            return;
+        }
+
+        const forwardPort = chrome.tabs.connect(tabId, {name: 'frontend-api-receiver'});
+
+        port.onMessage.addListener(message => forwardPort.postMessage(message));
+        forwardPort.onMessage.addListener(message => port.postMessage(message));
+        port.onDisconnect.addListener(() => forwardPort.disconnect());
+        forwardPort.onDisconnect.addListener(() => port.disconnect());
+    }
+}
diff --git a/ext/bg/js/backend.js b/ext/bg/js/backend.js
index d95cb82d..39fd4288 100644
--- a/ext/bg/js/backend.js
+++ b/ext/bg/js/backend.js
@@ -22,6 +22,8 @@ class Backend {
         this.translator = new Translator();
         this.anki = new AnkiNull();
         this.options = null;
+
+        this.apiForwarder = new BackendApiForwarder();
     }
 
     async prepare() {
@@ -125,6 +127,10 @@ class Backend {
 
             forward: ({action, params}) => {
                 forward(apiForward(action, params, sender), callback);
+            },
+
+            frameInformationGet: () => {
+                forward(apiFrameInformationGet(sender), callback);
             }
         };
 
diff --git a/ext/bg/js/options.js b/ext/bg/js/options.js
index 7d993987..df95aae9 100644
--- a/ext/bg/js/options.js
+++ b/ext/bg/js/options.js
@@ -219,7 +219,10 @@ function optionsSetDefaults(options) {
             delay: 20,
             length: 10,
             modifier: 'shift',
-            deepDomScan: false
+            deepDomScan: false,
+            popupNestingMaxDepth: 0,
+            enableOnPopupExpressions: false,
+            enableOnSearchPage: true
         },
 
         dictionaries: {},
diff --git a/ext/bg/js/search-frontend.js b/ext/bg/js/search-frontend.js
new file mode 100644
index 00000000..840a1ea8
--- /dev/null
+++ b/ext/bg/js/search-frontend.js
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2019 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/>.
+ */
+
+
+async function searchFrontendSetup() {
+    const options = await apiOptionsGet();
+    if (!options.scanning.enableOnSearchPage) { return; }
+
+    const scriptSrcs = [
+        '/fg/js/api.js',
+        '/fg/js/frontend-api-receiver.js',
+        '/fg/js/popup.js',
+        '/fg/js/util.js',
+        '/fg/js/popup-proxy-host.js',
+        '/fg/js/frontend.js'
+    ];
+    for (const src of scriptSrcs) {
+        const script = document.createElement('script');
+        script.async = false;
+        script.src = src;
+        document.body.appendChild(script);
+    }
+
+    const styleSrcs = [
+        '/fg/css/client.css'
+    ];
+    for (const src of styleSrcs) {
+        const style = document.createElement('link');
+        style.rel = 'stylesheet';
+        style.type = 'text/css';
+        style.href = src;
+        document.head.appendChild(style);
+    }
+}
+
+searchFrontendSetup();
diff --git a/ext/bg/js/settings.js b/ext/bg/js/settings.js
index f5d669b2..83f4528c 100644
--- a/ext/bg/js/settings.js
+++ b/ext/bg/js/settings.js
@@ -48,9 +48,12 @@ async function formRead() {
     optionsNew.scanning.alphanumeric = $('#search-alphanumeric').prop('checked');
     optionsNew.scanning.autoHideResults = $('#auto-hide-results').prop('checked');
     optionsNew.scanning.deepDomScan = $('#deep-dom-scan').prop('checked');
+    optionsNew.scanning.enableOnPopupExpressions = $('#enable-scanning-of-popup-expressions').prop('checked');
+    optionsNew.scanning.enableOnSearchPage = $('#enable-scanning-on-search-page').prop('checked');
     optionsNew.scanning.delay = parseInt($('#scan-delay').val(), 10);
     optionsNew.scanning.length = parseInt($('#scan-length').val(), 10);
     optionsNew.scanning.modifier = $('#scan-modifier-key').val();
+    optionsNew.scanning.popupNestingMaxDepth = parseInt($('#popup-nesting-max-depth').val(), 10);
 
     optionsNew.anki.enable = $('#anki-enable').prop('checked');
     optionsNew.anki.tags = $('#card-tags').val().split(/[,; ]+/);
@@ -189,9 +192,12 @@ async function onReady() {
     $('#search-alphanumeric').prop('checked', options.scanning.alphanumeric);
     $('#auto-hide-results').prop('checked', options.scanning.autoHideResults);
     $('#deep-dom-scan').prop('checked', options.scanning.deepDomScan);
+    $('#enable-scanning-of-popup-expressions').prop('checked', options.scanning.enableOnPopupExpressions);
+    $('#enable-scanning-on-search-page').prop('checked', options.scanning.enableOnSearchPage);
     $('#scan-delay').val(options.scanning.delay);
     $('#scan-length').val(options.scanning.length);
     $('#scan-modifier-key').val(options.scanning.modifier);
+    $('#popup-nesting-max-depth').val(options.scanning.popupNestingMaxDepth);
 
     $('#dict-purge-link').click(utilAsync(onDictionaryPurge));
     $('#dict-file').change(utilAsync(onDictionaryImport));