background.js

chrome.runtime.onInstalled.addListener(() => {

  chrome.declarativeContent.onPageChanged.removeRules(undefined, () => {
    chrome.declarativeContent.onPageChanged.addRules([{
      conditions: [new chrome.declarativeContent.PageStateMatcher({
            
      })
      ],
      actions: [new chrome.declarativeContent.ShowPageAction()]
    }])    
	  return
  });

  chrome.contextMenus.create({
    "id": "tails-mouse-footpring-switch",
    "title": "STOP Extension"
  });
  return
});

chrome.contextMenus.onClicked.addListener(() => {
  chrome.storage.local.get(['msg'], function(res){
    if(res.msg.type === 'stop') {
      chrome.tabs.query({active: true, currentWindow: true}, (tabs) => {

        chrome.tabs.sendMessage(
          tabs[0].id,
          {
            name: res.msg.name,
            path: res.msg.name,
            type: 'moving'})
	    return
      });
   
    } else {
      chrome.tabs.query({active: true, currentWindow: true}, (tabs) => {

        chrome.tabs.sendMessage(
          tabs[0].id,
          {
            type: 'stop',
            name: res.msg.name,
            path: res.msg.name
          })
	    return
      });

    }
    return
  })
})

chrome.runtime.onMessage.addListener((msg) => {
  const stopExtension = chrome.i18n.getMessage('stopExtension')
  const startExtension = chrome.i18n.getMessage('startExtension')
  let msgObj;
  if (msg.type === 'moving') {
    msgObj = {
      name: msg.name,
      path: msg.path,
      type: 'check'
    }
    chrome.storage.local.set({msg: msgObj})

    chrome.tabs.query({active: true, currentWindow: true}, (tabs) => {     
      chrome.scripting.executeScript(
        { target: {tabId: tabs[0].id},
          files: ['./functions/' + msg.name + '.js'] });
	    return
    });
    
    chrome.contextMenus.update( "tails-mouse-footpring-switch", {"title": stopExtension});

  } else if (msg.type === 'stop') {
    msgObj = {
      type: 'stop',
      name: msg.name,
      path: msg.path	    
    }
    chrome.storage.local.set({msg: msgObj})

    chrome.tabs.query({active: true, currentWindow: true}, (tabs) => {
      chrome.scripting.executeScript(
        { target: { tabId : tabs[0].id},
          files: ['./functions/' + 'stop' + '.js'] });
	    return
    });

    chrome.contextMenus.update( "tails-mouse-footpring-switch", {"title": startExtension});

  } else if (msg.type === 'check') {

    chrome.tabs.query({active: true, currentWindow: true}, (tabs) => {              
      chrome.storage.local.get(['msg'], function(res){
        //	      console.log(res)
        if (Object.keys(res).length === 0) return; 
        chrome.tabs.sendMessage(
          tabs[0].id,
          { name: res.msg.name,
            path: res.msg.path,
	 	    type: res.msg.type === 'stop' ? 'stop' : 'moving',
            sender: 'background'}
        );
        chrome.action.setIcon({
          path: res.msg.path,
          tabId: tabs[0].id});
      })
    });
       
  }
  return
})