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Will Bamberg
2017-10-13 11:05:50 -07:00
parent 1ba82391f7
commit 1b5e7e6304
2 changed files with 4 additions and 13 deletions
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2
session-state/README.md
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@@ -6,6 +6,8 @@ This extension adds a context menu item. When the user clicks the context menu i
But the extension also uses `sessions.setTabValue` to store the fact that it has added a border to this page. If the user closes the page, then restores it, the extension will retrieve this fact using `sessions.getTabValue`, and use that to reapply the border.
Note: to restore a tab, press Control+Shift+T (or Command+Shift+T on a Mac). In Firefox you can also restore the tab from your "History->Recently Closed Tabs" menu.
## What it shows
This example demonstrates how you can use the [sessions](https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/sessions) API to store and retrieve arbitrary state that you want to associate with a tab or window. Then if the tab/window is closed and subsequently restored, you can retrieve the state.

15
session-state/background.js
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@@ -2,8 +2,8 @@
* Add a context menu item to borderify the current tab.
*/
browser.menus.create({
id: "borderify",
title: "borderify",
id: "borderify-current-tab",
title: "Borderify current tab",
contexts: ["all"]
});
@@ -49,14 +49,3 @@ browser.tabs.onCreated.addListener((tab) => {
let thisBorderifyRestored = borderifyRestored.bind(null, tab.id);
browser.tabs.onUpdated.addListener(thisBorderifyRestored);
});
/*
browser.tabs.onUpdated.addListener((tabId) => {
console.log(tabId);
browser.sessions.getTabValue(tabId, "border-css").then(result => {
if (result) {
browser.tabs.insertCSS(tabId, {code: result, runAt: "document_end"});
}
});
});
*/