Goal
我正在尝试使用此样板代码使用在线词典 API 进行查找，以查找所选单词并返回定义。
Problem
我已经单独测试了实际的 jQuery ajax 调用，效果很好。另外，我可以在页面上获取所选的单词。然而，由于某种原因，我实际上遇到了问题callingSample.js 中的样板代码中的 ajax 函数
需要建议。
背景.html
<html>
<script src="jquery.js"/>
<script src="sample.js"/>
<body>
<p>
Image here:
</p>
<img id="target" src="white.png" width="640" height="480">
</body>
</html>
清单.json
{
"name": "Context Menus Sample",
"description": "Shows some of the features of the Context Menus API",
"version": "0.6",
"permissions": ["contextMenus"],
"background": {
"scripts": ["sample.js"],
"pages": ["background.html"]
},
"manifest_version": 2
}
示例.js
// A generic onclick callback function.
function genericOnClick(info, tab) {
console.log("item " + info.menuItemId + " was clicked");
console.log("info: " + JSON.stringify(info));
console.log("tab: " + JSON.stringify(tab));
alert(info.selectionText);
displayText(info.selectionText);
console.log("asfasdf");
$("#testID", document).html("testing jQuery");
$.ajax({
url: "http://api.wordnik.com//v4/word.json/cat/definitions?api_key=mykey&includeRelated=false&includeTags=false&limit=1",
dataType : 'json',
success: function(data) {
//called when successful
alert(data[0].word);
},
error: function(e) {
//called when there is an error
console.log(e.message);
}
});
}
// Create one test item for each context type.
var contexts = ["page","selection","link","editable","image","video",
"audio"];
for (var i = 0; i < contexts.length; i++) {
var context = contexts[i];
var title = "Test '" + context + "' menu item";
var id = chrome.contextMenus.create({"title": title, "contexts":[context],
"onclick": genericOnClick});
console.log("'" + context + "' item:" + id);
}
// Create a parent item and two children.
var parent = chrome.contextMenus.create({"title": "Test parent item"});
var child1 = chrome.contextMenus.create(
{"title": "Child 1", "parentId": parent, "onclick": genericOnClick});
var child2 = chrome.contextMenus.create(
{"title": "Child 2", "parentId": parent, "onclick": genericOnClick});
console.log("parent:" + parent + " child1:" + child1 + " child2:" + child2);
// Create some radio items.
function radioOnClick(info, tab) {
console.log("radio item " + info.menuItemId +
" was clicked (previous checked state was " +
info.wasChecked + ")");
}
var radio1 = chrome.contextMenus.create({"title": "Radio 1", "type": "radio",
"onclick":radioOnClick});
var radio2 = chrome.contextMenus.create({"title": "Radio 2", "type": "radio",
"onclick":radioOnClick});
console.log("radio1:" + radio1 + " radio2:" + radio2);
// Create some checkbox items.
function checkboxOnClick(info, tab) {
console.log(JSON.stringify(info));
console.log("checkbox item " + info.menuItemId +
" was clicked, state is now: " + info.checked +
"(previous state was " + info.wasChecked + ")");
}
var checkbox1 = chrome.contextMenus.create(
{"title": "Checkbox1", "type": "checkbox", "onclick":checkboxOnClick});
var checkbox2 = chrome.contextMenus.create(
{"title": "Checkbox2", "type": "checkbox", "onclick":checkboxOnClick});
console.log("checkbox1:" + checkbox1 + " checkbox2:" + checkbox2);
// Intentionally create an invalid item, to show off error checking in the
// create callback.
console.log("About to try creating an invalid item - an error about " +
"item 999 should show up");
chrome.contextMenus.create({"title": "Oops", "parentId":999}, function() {
if (chrome.extension.lastError) {
console.log("Got expected error: " + chrome.extension.lastError.message);
}
});
