Implement menu and functionality to discard tabs, fixes #11.

_locales/de/messages.json

@@ -14,5 +14,25 @@
   "optionActiveWindow": {
     "message": "Halte das aktive Fenster am Leben",
     "description": "Label for option for whether to put tabs to sleep in the active window."
+  },
+  "menuGroup": {
+    "message": "Dormancy - 'Einschläfern' von Tabs",
+    "description": "Menu group for the extension at tab context."
+  },
+  "menuDiscardSelected": {
+    "message": "Au&sgewählte Tabs 'einschläfern'",
+    "description": "Menu item to put all selected / highlighted tabs to sleep."
+  },
+  "menuDiscardLeft": {
+    "message": "Tabs &links 'einschläfern'",
+    "description": "Menu item to put tabs to the left in the same window to sleep."
+  },
+  "menuDiscardRight": {
+    "message": "Tabs &rechts 'einschläfern'",
+    "description": "Menu item to put tabs to the right in the same window to sleep."
+  },
+  "menuDiscardOther": {
+    "message": "&Andere Tabs im Fenster 'einschläfern'",
+    "description": "Menu item to put all other tabs in the same window to sleep."
   }
 }

_locales/en/messages.json

@@ -18,5 +18,25 @@
   "optionExcludedWebsites": {
     "message": "Keep these URLs alive (separated by commas)",
     "description": "Comma separated list of website URLs."
+  },
+  "menuGroup": {
+    "message": "Dormancy - Put tabs to sleep",
+    "description": "Menu group for the extension at tab context."
+  },
+  "menuDiscardSelected": {
+    "message": "Put &selected tabs to sleep",
+    "description": "Menu item to put all selected / highlighted tabs to sleep."
+  },
+  "menuDiscardLeft": {
+    "message": "Put tabs to the &left to sleep",
+    "description": "Menu item to put tabs to the left in the same window to sleep."
+  },
+  "menuDiscardRight": {
+    "message": "Put tabs to the &right to sleep",
+    "description": "Menu item to put tabs to the right in the same window to sleep."
+  },
+  "menuDiscardOther": {
+    "message": "Put &other tabs of window to sleep",
+    "description": "Menu item to put all other tabs in the same window to sleep."
   }
 }

background.js

@@ -45,22 +45,23 @@
     return config.excludedWebsites.value.some(w => w.length && url.startsWith(w));
   }
 
-  // Check for tabs that have hit dormanticizable age and dormanticize them.
+  const tabQueryOptions = {
+    // keep tabs that play sound awake
+    audible: false,
+    // discarded tabs are already asleep, ignore them
+    discarded: false,
+    // keep pinned tabs awake for their special role
+    pinned: false,
+  }
+
+  // Check for tabs that have hit sleeping age and put them to sleep.
   async function periodicTabCheck() {
     // Query for the active tab
     let activeWindow = await browser.windows.getCurrent();
     let activeWindowId = activeWindow.id;
 
     // Query for all tabs that are not the active tab
-    let tabs = await browser.tabs.query({
-        pinned: false,
-        // only sleep if isn't the active tab
-        active: false,
-        // only sleep if not already asleep
-        discarded: false,
-        // do not sleep tabs that play sound
-        audible: false
-    });
+    let tabs = await browser.tabs.query({ ...tabQueryOptions, active: false });
 
     for (let i in tabs) {
       let tab = tabs[i];
@@ -87,12 +88,88 @@
     }
   });
 
+  function addMenu() {
+
+    async function discardTabs(tabs) {
+      tabs.forEach(tab => {
+        if (!tab.active) {
+          browser.tabs.discard(tab.id);
+        }
+      });
+    }
+    async function discardSelected() {
+      let tabs = await browser.tabs.query({ ...tabQueryOptions, currentWindow: true, highlighted: true });
+      discardTabs(tabs);
+    };
+    async function getCurrentWindowsTabs() {
+      return await browser.tabs.query({ ...tabQueryOptions, currentWindow: true });
+    }
+    async function discardPositional(position) {
+      let tabs = await getCurrentWindowsTabs();
+      const toDiscard = []
+      if (position != 'left') {
+        tabs = tabs.reverse();
+      }
+      for (let i = 0; !tabs[i].active && i < tabs.length; i++) {
+        toDiscard.push(tabs[i])
+      }
+      discardTabs(toDiscard);
+    };
+    async function discardLeft() {
+      discardPositional('left');
+    }
+    async function discardRight() {
+      discardPositional('right');
+    }
+    async function discardOther() {
+      let tabs = await getCurrentWindowsTabs();
+      discardTabs(tabs);
+    }
+
+    browser.menus.remove('dormancy-menu');
+    const topMenuId = browser.menus.create({
+      id: 'dormancy-menu',
+      title: browser.i18n.getMessage('menuGroup'),
+      icons: {
+        '96': 'icon-96.png'
+      },
+      contexts: ['tab']
+    });
+    browser.menus.create({
+      id: 'dormancy-menu-discard-selected',
+      parentId: topMenuId,
+      title: browser.i18n.getMessage('menuDiscardSelected'),
+      onclick: discardSelected
+    });
+    browser.menus.create({
+      id: 'dormancy-menu-discard-left',
+      parentId: topMenuId,
+      title: browser.i18n.getMessage('menuDiscardLeft'),
+      onclick: discardLeft
+    });
+    browser.menus.create({
+      id: 'dormancy-menu-discard-right',
+      parentId: topMenuId,
+      title: browser.i18n.getMessage('menuDiscardRight'),
+      onclick: discardRight
+    });
+    browser.menus.create({
+      id: 'dormancy-menu-discard-other',
+      parentId: topMenuId,
+      title: browser.i18n.getMessage('menuDiscardOther'),
+      onclick: discardOther
+    });
+  };
+
   // Start everything. Or cancel what's going on and restart.
   async function init() {
     // Load (or reload) config from storage
     let oldConfig = config;
     config = await loadConfig();
 
+    // add a context menu to tab-strip to put tabs to sleep manually
+    addMenu();
+
     // Reset timer if timeout value changed
     if (!timerId || (oldConfig.timeout.value && (config.timeout.value != oldConfig.timeout.value))) {
       if (timerId) {

manifest.json

@@ -1,7 +1,7 @@
 {
   "name": "__MSG_extensionName__",
   "description": "__MSG_extensionDescription__",
-  "version": "3.4.3",
+  "version": "3.5.0",
   "manifest_version": 2,
   "default_locale": "en",
 
@@ -25,6 +25,7 @@
   },
 
   "permissions": [
+    "menus",
     "sessions",
     "storage",
     "tabs"