CODEWITHSUNDEEP
javascriptgoogle-chromegoogle-chrome-extensionnotificationsshortcut
thekid
thekid

Reputation: 15

Creating Chrome Extension to Dismiss Notifications via Keyboard Shortcut

I'm new to Chrome extension development. I am currently looking to make a Chrome extension to dismiss notifications. I want the extension to be activated once via shortcut keys.

Before looking at the code below, I want to let it be known that the alert does show up... but the Chrome Extensions page shows the error:

"Error in event handler for commands.onCommand: TypeError: Cannot read property 'getAll' of undefined"

on the line:

chrome.notifications.getAll((items) => {

The chrome.notifications object is somehow undefined, so it seems that Chrome thinks that there are no current notifications being displayed...which is strange because there indeed are, as the image shows.

Would anyone please help by shedding some light on this situation?

manifest.json:
{
"name": "ClearAll",
"version": "1.0",
"description": "Clear notifications!",
"background": {
  "scripts": ["background.js"],
  "persistent": false
},

"commands": {
  "clear": {
    "suggested_key":{
      "default": "Alt+Shift+S" 
    },
    "description": "Executes clear"
 }
},
"manifest_version": 2
}

background.js:

chrome.commands.onCommand.addListener(function(command) {
    if (command == 'clear') {
      alert("testing");
      chrome.notifications.getAll((items) => {
        if (items) 
          for (let key in items) 
            chrome.notifications.clear(key);
      });
    }
});

Error:

Image: Cannot read property 'getAll' of undefined error

Upvotes: 1

Views: 476

Answers (2)

ShivanKaul
ShivanKaul

Reputation: 757

You might already have figured this out, but for anyone who stumbles upon this question in the future: it's not possible to write an extension that dismisses all notifications on Chrome because it is not possible for any extension to get access to a user's browser-wide notifications; the notifications permission in the manifest.json lets you create and clear notifications created by your extension. Indeed, it would be a privacy violation if any extension was allowed to do this!

From https://developer.chrome.com/apps/notifications#method-getAll,

Retrieves all the notifications of this app or extension (emphasis mine.)

Upvotes: 0

Titus
Titus

Reputation: 22484

You need to add the notifications permission to your manifest

{
    "name": "ClearAll",
    "permissions": ["notifications"],
    .......
}

Upvotes: -1

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