Fired whenever the user changes their input, after they have started interacting with your extension by entering its keyword in the address bar and then pressing the space key.
This is the event you'll use to populate the address bar's drop-down list with suggestions. The event listener is passed:
omnibox.SuggestResult
objects, one for each suggestion. Only the first six suggestions will be displayed.
browser.omnibox.onInputChanged.addListener(listener)
browser.omnibox.onInputChanged.removeListener(listener)
browser.omnibox.onInputChanged.hasListener(listener)
Events have three functions:
addListener(listener)
Adds a listener to this event.
removeListener(listener)
Stop listening to this event. The
listener
argument is the listener to remove.
hasListener(listener)
校验是否
listener
is registered for this event. Returns
true
if it is listening,
false
否则。
The listener function will be passed two parameters: a string
text
, and a callback function
suggest
.
text
字符串
. The current user input in the address bar, not including the extension's keyword itself or the space after the keyword. Use this to decide which suggestions to display in the drop-down list.
suggest
函数
. A callback function that the event listener can call to supply suggestions for the address bar's drop-down list. The callback function expects to receive an array of
omnibox.SuggestResult
objects, one for each suggestion. Only the first six suggestions will be displayed.
BCD tables only load in the browser
This example interprets the user's input as a CSS property name and populates the drop-down list with one
omnibox.SuggestResult
object for each CSS property matching the input. The
SuggestResult
description
is the full name of the property, and the
content
is the MDN page for that property.
The example also listens to
omnibox.onInputEntered
, and opens the MDN page corresponding to the selection, according to the
omnibox.OnInputEnteredDisposition
自变量。
browser.omnibox.setDefaultSuggestion({
description: "Type the name of a CSS property"
});
/*
Very short list of a few CSS properties.
*/
const props = [
"animation",
"background",
"border",
"box-shadow",
"color",
"display",
"flex",
"flex",
"float",
"font",
"grid",
"margin",
"opacity",
"overflow",
"padding",
"position",
"transform",
"transition"
];
const baseURL = "https://developer.mozilla.org/en-US/docs/Web/CSS/";
/*
Return an array of SuggestResult objects,
one for each CSS property that matches the user's input.
*/
function getMatchingProperties(input) {
var result = [];
for (prop of props) {
if (prop.indexOf(input) === 0) {
console.log(prop);
let suggestion = {
content: baseURL + prop,
description: prop
}
result.push(suggestion);
} else {
if (result.length != 0) {
return result;
}
}
}
return result;
}
browser.omnibox.onInputChanged.addListener((input, suggest) => {
suggest(getMatchingProperties(input));
});
browser.omnibox.onInputEntered.addListener((url, disposition) => {
switch (disposition) {
case "currentTab":
browser.tabs.update({url});
break;
case "newForegroundTab":
browser.tabs.create({url});
break;
case "newBackgroundTab":
browser.tabs.create({url, active: false});
break;
}
});
注意：
This API is based on Chromium's
chrome.omnibox
API。
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
最后修改： , 由 MDN 贡献者