I am developing a chrome extension. I am able to pass a message from background page to popup extension when a context menu is clicked if i open the popup page with "Inspect pop-up" selection. Because it stays open in this way.
But if I click the context menu when the popup page is not opened, no message received by it.
Do you have any suggestions to open popup automatically, make it stay open or send message to it when even if it is not active.
There is no way to pragmatically open a popup window. Popup windows are only active when the popup is open which is why you cant send messages to it when it is closed.
You could either queue messages in the background page and have them retrieved the next time the popup window is opened. Or depending on the functionality you might look into using HTML5 desktop notifications instead.
Instead of sending stuff to the popup, the popup should request what it needs when it is opened.
Because the popup is just an HTML page, it doesn't exist until it has been opened.
Basically, like abraham mentioned, you would store any information in the background, using localStorage or chrome.storage. When the popup opens, it should then use the chrome.extension.getBackgroundPage() function to get a reference to the background, which can provide access to the stored information.
If you are using localStorage or chrome.storage, you may be able to access it directly, without using the background, as storage is shared across the whole extension.
Related
I have a site that offers users the chance to download files by clicking a button which loads a rest request then uses file-saver to download it.
The second time a user in Chrome clicks this they get a popup blocker. The message is "This site attempted to download multiple files automatically". How does Chrome determine when to show this message? Can I do something to reset it?
The site is loaded as an iframe within microsoft teams. But I don't think that is the issue
Fire up Chrome, click the menu icon, and then click “Settings.” Alternatively, you can type chrome://settings/
Once in the Settings tab, scroll down to the bottom and click “Advanced.”
Scroll down to the Privacy and Security section and click on “Site Settings.”
Scroll down the list of settings until you see the “Automatic Downloads” option. Click on it.
By default, the feature is set to ask permission when a site tries to download files in succession. This is the recommended behavior, but if you want to block all sites from downloading multiple files automatically, toggle the switch to the Off position.
My web application is mimicing the UI of my desktop application, flow is as follows
Select Task in browser window
Change any Options and then start
Show Progress in same browser window, the progress bar goess back to server every 5 seconds checking progress.
When task has completed we show report in new tab
and go back to Select task Window,
this is done by running following Javascript in progress page
window.open('/start','_self'); window.open('/reporturl','_blank');
This works fine on my PC but when trying on Safari on OSX and on Android phone and iPad one of two things happen
The progress page becomes the start page but the report page is not opened in tab
The Progress page becomes the report page
My question is does opening window in new tab with _blank have all the problems of using popup windows. If so should I modify my prcoess so that at stage 3 it just displays report page, and then add a back button or navigable footer to the report to allow user to get back to start page ?
I can think of some options you could use instead of new tab.
Modal with Ajax
-- With jQuery it is posible to open modal
dialogs they can be populated with html (or other data) fetched with ajax (async). I am a big fan of these and use them all over my projects. Users will not be annoyed with pop-up warning messages, etc. Once the content is read (or whatever) the user can simply close the dialog. (If I had to make your app I would certainly implement this).
Besides the jQuery dialogs, other modal/dialog scripts are out there. Check out Bootstrap Modal if you like it modern.
Serve report as download
-- Depending on what the user can/will do with the report, it might be interesting to write the report page in a way that it sends back a .pdf file, or another type of file, as download. Loading the URL in a new tab will now always start a download. Triggering this from JS without user interaction might be a problem though (same as with pop-up / new tab). Adding a button to trigger the download on complete will solve this.
I know the question was about the use of tabs.. But try to avoid it. Browsers handle it all in their own way. And many users get confused when suddenly stuff is opening in tabs when they did not ask for it. In case of pop-ups, it is possible for users to turn them of or convert into opening a new tab from within the browser settings. If they have been fiddling with browser defaults, you'll have troubles of keeping the 'flow' of the app the same for all users (and cross browser).
How to get a warning massage if i accidently click the close button of the chrome browser which have multiple tabs opened at that time?
I am a regular user of Crome and having this problem while using it. I normally open multiple tabs inside a single browser but sometimes i accidently click the close button of browser and as soon as the button is clicked crome does't give any warning issue about multiple active tabs and close the entire window.
Is the end user like me is browsing on normal crome window then he can open the websites again by checking the web history but if he is browsing inside private browser then he can't do anything(this happens with me very regularly because i normally browse in private browser). On the other hand if you accidently click the close button in mozilla which have multiple tabs open it throws a warning massage to the user and asks for his wish.
Go find an extension called "Keep One Pinned Tab". It may not be exactly the function you need, but if you search for other extensions, I am sure there is such an extension that does just that. If you can't find one, I suggest to learn how to develop extensions and make one yourself, you can share it with others when it's done.
Chrome extension popups are designed per the FAQ to close when clicked away from.
I have a firefox add-on that will remember the text typed into the text area when the popup is clicked open or closed.
I assume this is the case because the popup merely opens and closes the html, as opposed to the chrome version which calls window.onload each time.
The chrome extension popup however seems to call popup.js each time you click the icon, which I assume is because popup.js is linked from popup.html because page scripts have to be "moved out" in chrome for security.
Is there a way to keep data typed into a textbox, when the extension reloads and "erases" the text?
Anytime the content of the textarea changes, store the new value in localStorage. When the popup loads again, check local storage for a value and populate the textarea.
I'm trying to make an extension that will collect some data from currently opened tab on Google chrome.
I also use a popup in my extension to provide a control interface (buttons and stuff).
I need to be able to do the following:
1) Read source code of currently opened tab.
2) To be able to scroll down window content (using the code of course) .
If I could only get access to a javascript "window" object of currently opened tab , that would be enough.
But I'm open for another suggestions .
Can anyone help ?
You can simple use document in a content_script. Content scripts are defined in the manifest.json. In your case you should set "run_at": "document_end", so the dom is fully loaded when your script is called.
For more informations about content scripts and chrome extension development you find an easy to use guide from google - http://code.google.com/chrome/extensions/content_scripts.html
Code from popup won't be able to access directly to window objects from displayed tabs. You have to use a content script which will be able to send the source code of opened tab to the background page. This content script will also be able to scroll the window of opened tab.