Disable or enable selection while changing tabs

README.md

@@ -8,6 +8,8 @@ A Chrome plugin for shanbay.com to recite English vocabulary.
 | Backlog Item  | Status |
 | ------------- | ------------- |
 | Refactoring with Backbone and Mustache  | Ongoing  |
+| Forward and backward navigation  | Ongoing  |
+| Disable or enable selection while changing tabs  | Done  |
 | Add help page  | Done  |
 | Query word by spelling similar in input box  | Done  |
 | List out pronounce similar words  | Done  |

background.js

@@ -1,6 +1,14 @@
 
-var selectWord = null;
+var Selected = {};
+var Activity = null;
 
+function getSelected() {
+  if (Activity) {
+    return Selected[Activity];
+  } else {
+    return null;
+  }
+}
 
 function ttsSpeak(utterance) {	
   if (utterance !== undefined && utterance !== null && utterance.length > 0) {
@@ -11,14 +19,11 @@ function ttsSpeak(utterance) {
 }
 
 function loadContentScriptInAllTabs() {
-  chrome.windows.getAll({'populate': true}, function(windows) {
-    for (var i = 0; i < windows.length; i++) {
-      var tabs = windows[i].tabs;
+  chrome.windows.getAll({'populate': true}, function(wins) {
+    for (var i = 0; i < wins.length; i++) {
+      var tabs = wins[i].tabs;
       for (var j = 0; j < tabs.length; j++) {
-        chrome.tabs.executeScript(
-          tabs[j].id,
-          {file: 'content_script.js', allFrames: true}
-        );
+        chrome.tabs.executeScript(tabs[j].id, {file: 'content_script.js', allFrames: true});
       }
     }
   });
@@ -27,22 +32,36 @@ function loadContentScriptInAllTabs() {
 function initBackground() {
 	loadContentScriptInAllTabs();
 
+  chrome.windows.getAll({'populate' : true }, function(wins) {
+    wins.forEach(function(win) {
+      win.tabs.forEach(function(tab) {
+        if (tab != undefined && tab.url.indexOf('chrome') !== 0) {
+          if (tab.highlighted) {
+            Activity = tab.id;
+          }
+        }
+      });
+    });
+  });
+
+  chrome.tabs.onActivated.addListener(function(info) {
+    Activity = info.tabId;
+  });
+
+
 	chrome.runtime.onMessage.addListener(function(request, sender, sendResponse) {
-		if (request['select'] != undefined) {
-			selectWord = request['select'];
-			// console.log("background.js select : " + selectWord);
-			ttsSpeak(selectWord);
+		if (request['select'] != undefined && Activity) {
+      Selected[Activity] = request['select'];
+			// console.log("background.js select : " + Selected[Activity]);
+			ttsSpeak(Selected[Activity]);
 		} 
 	});
 
   chrome.runtime.onInstalled.addListener(function(details) {
     if (details.reason == "install") {
-      // console.log("This is a first install!");
       chrome.tabs.create({url : 'help.html', selected : true});
     } else if (details.reason == "update") {
-      // var thisVersion = chrome.runtime.getManifest().version;
-      // console.log("Updated from " + details.previousVersion + " to " + thisVersion  + "!");
-      // chrome.tabs.create({url : 'help.html', selected : true});
+      // console.log("Updated from " + details.previousVersion + " to " + chrome.runtime.getManifest().version);
     }
   });
 }

help.html

@@ -78,7 +78,7 @@ <h2> <span> 3- </span> 打开扇贝网的单词专页 </h2>
 	<div class='backlog'>
 		<h2> <span> 4- </span> 超链接中单词划词 </h2>
 		<p>
-			超链接中间的单词很难选中，因为一按鼠标网页就跳转了，导致无法选中。 <br>
+			超链接中间的单词很难选中，因为一点击鼠标网页就跳转了，导致无法选中。 解决方案如下：<br>
 			选中一段文字，再点击插件的图标<img src="https://raw.githubusercontent.com/lingjf/Shanbay-Plugin/master/image/shellfish-darkblue-19.png" /> ，各个单词会单独列出。 <br>
 		</p>
 		<img src="https://raw.githubusercontent.com/lingjf/Shanbay-Plugin/master/image/help-04-01.jpeg" />
@@ -87,7 +87,7 @@ <h2> <span> 4- </span> 超链接中单词划词 </h2>
 	<div class='backlog'>
 		<h2> <span> 5- </span> 单词的出现频率 </h2>
 		<p>
-			每 Ｎ 个网页出现该单词一次。 <br>
+			每 Ｎ 个网页出现该单词一次。 可以根据频率来决定要不要背诵。<br>
 		</p>
 		<img src="https://raw.githubusercontent.com/lingjf/Shanbay-Plugin/master/image/help-05-01.jpeg" />
 	</div>
@@ -170,6 +170,10 @@ <h2> <span> 13- </span> 查看读音相同或相似的单词 </h2>
 		<img src="https://raw.githubusercontent.com/lingjf/Shanbay-Plugin/master/image/help-14-01.jpeg" />
 	</div>
 
+	<div class='backlog'>
+		<h2> <span> 完毕 </span> </h2>
+	</div>
+
 </body>
 
 <script src="lib/jquery.js"></script>

manifest.json

@@ -1,6 +1,6 @@
 {
   "name": "__MSG_application_title__",
-  "version": "1.12",
+  "version": "1.13",
   "description": "A Shanbay plugin to add new word to Shanbay.com easily for reciting and memory. ",
   "manifest_version": 2,
   "default_locale": "en",

popup.js

@@ -695,7 +695,7 @@ $(document).ready(function() {
 	$('#pronunciation').mouseenter(pronunceWord);
 
 	chrome.runtime.getBackgroundPage(function(backgroundPage) {
-		var words = backgroundPage.selectWord;
+		var words = backgroundPage.getSelected();
 		// $('#queryword').prop("placeholder", words);
 
 		if (words && words.length > 0) {