我尝试按照新示例制作options pages的示例代码进行操作。我添加了一个options.html和options.js文件,其中包含了在该页面上列出的确切内容。我还添加了" options_ui"部分到我的manifest.json(并删除了'">"":真')后面的尾随逗号。
当我这样做时,我可以打开扩展的选项窗口,但保存和加载功能不起作用。我尝试添加一些控制台日志和警报,这些似乎也没有执行。我无法在任何地方找到任何错误或警告,但我无法弄清楚如何让JavaScript执行。有人知道我需要采取哪些不同的做法吗?
编辑:我在这里添加了源文件,以便人们更轻松地扫描它们以及后代。
的manifest.json
{
"manifest_version": 2,
"name": "My extension",
"description": "test extension",
"version": "1.0",
"options_ui": {
// Required.
"page": "options.html",
// Recommended.
"chrome_style": true
// Not recommended; only provided for backwards compatibility,
// and will be unsupported in a future version of Chrome (TBD).
//"open_in_tab": true
}
}
options.html
<!DOCTYPE html>
<html>
<head>
<title>My Test Extension Options</title>
<style>
body: { padding: 10px; }
</style>
</head>
<body>
Favorite color:
<select id="color">
<option value="red">red</option>
<option value="green">green</option>
<option value="blue">blue</option>
<option value="yellow">yellow</option>
</select>
<label>
<input type="checkbox" id="like">
I like colors.
</label>
<div id="status"></div>
<button id="save">Save</button>
<script src="options.js"></script>
</body>
</html>
options.js
// Saves options to chrome.storage.sync.
function save_options() {
var color = document.getElementById('color').value;
var likesColor = document.getElementById('like').checked;
chrome.storage.sync.set({
favoriteColor: color,
likesColor: likesColor
}, function() {
// Update status to let user know options were saved.
var status = document.getElementById('status');
status.textContent = 'Options saved.';
setTimeout(function() {
status.textContent = '';
}, 750);
});
}
// Restores select box and checkbox state using the preferences
// stored in chrome.storage.
function restore_options() {
// Use default value color = 'red' and likesColor = true.
chrome.storage.sync.get({
favoriteColor: 'red',
likesColor: true
}, function(items) {
document.getElementById('color').value = items.favoriteColor;
document.getElementById('like').checked = items.likesColor;
});
}
document.addEventListener('DOMContentLoaded', restore_options);
document.getElementById('save').addEventListener('click',
save_options);
答案 0 :(得分:3)
要使用chrome.storage
API,您必须declare清单文件中的storage
权限。
如果右键单击选项页面,选择“Inspect element”(打开devtools),并切换到Console选项卡,那么您将收到“无法读取属性'同步'未定义”错误。