Patch to bring back Super+<Num> shortcut on Linux Mint 19.3. This is a partial revert of https://github.com/linuxmint/cinnamon/commit/94719c2cf1525f17b38bc7356d46d5b6bb5eab59

super_num.patch

diff -ruw grouped-window-list@cinnamon.org.bak/appGroup.js grouped-window-list@cinnamon.org/appGroup.js
--- grouped-window-list@cinnamon.org.bak/appGroup.js	2019-12-12 18:46:55.000000000 +0700
+++ grouped-window-list@cinnamon.org/appGroup.js	2019-12-21 09:10:38.809467280 +0700
@@ -780,6 +780,33 @@
         return false;
     }
 
+    onAppKeyPress() {
+        if (this.groupState.isFavoriteApp && this.groupState.metaWindows.length === 0) {
+            this.launchNewInstance();
+        } else {
+            if (this.appKeyTimeout) {
+                clearTimeout(this.appKeyTimeout);
+                this.appKeyTimeout = 0;
+            }
+            if (this.groupState.metaWindows.length > 1) {
+                if (!this.hoverMenu) this.initThumbnailMenu();
+                this.hoverMenu.open(true);
+            } else {
+                this.listState.trigger('closeAllHoverMenus');
+            }
+            this.windowHandle();
+            this.appKeyTimeout = setTimeout(() => {
+                if (this.groupState.thumbnailMenuEntered) {
+                    clearTimeout(this.appKeyTimeout);
+                    this.appKeyTimeout = 0;
+                    return;
+                }
+                this.hoverMenu.close(true);
+                this.appKeyTimeout = 0;
+            }, this.state.settings.showAppsOrderTimeout);
+        }
+    }
+
     windowHandle() {
         if (this.groupState.lastFocused.appears_focused) {
             if (this.groupState.metaWindows.length > 1) {
diff -ruw grouped-window-list@cinnamon.org.bak/applet.js grouped-window-list@cinnamon.org/applet.js
--- grouped-window-list@cinnamon.org.bak/applet.js	2019-12-12 18:46:55.000000000 +0700
+++ grouped-window-list@cinnamon.org/applet.js	2019-12-21 09:06:27.783530554 +0700
@@ -357,6 +357,7 @@
         if (this.state.appletReady && this.state.panelEditMode) {
             return;
         }
+        this.bindAppKeys();
         this.state.set({appletReady: true});
     }
 
@@ -405,6 +406,7 @@
 
     on_applet_removed_from_panel() {
         this.state.set({willUnmount: true});
+        this.unbindAppKeys();
         this.signals.disconnectAllSignals();
         for (let i = 0, len = this.appLists.length; i < len; i++) {
             if (this.appLists[i]) {
@@ -435,6 +437,36 @@
         }
     }
 
+    bindAppKeys() {
+        this.unbindAppKeys();
+
+        for (let i = 1; i < 10; i++) {
+            this.bindAppKey(i);
+        }
+    }
+
+    unbindAppKeys() {
+        for (let i = 1; i < 10; i++) {
+            Main.keybindingManager.removeHotKey('launch-app-key-' + i);
+            Main.keybindingManager.removeHotKey('launch-new-app-key-' + i);
+        }
+    }
+
+    bindAppKey(i) {
+        Main.keybindingManager.addHotKey('launch-app-key-' + i, '<Super>' + i, () => this.onAppKeyPress(i));
+        Main.keybindingManager.addHotKey('launch-new-app-key-' + i, '<Super><Shift>' + i, () =>
+            this.onNewAppKeyPress(i)
+        );
+    }
+
+    onAppKeyPress(number) {
+        this.getCurrentAppList().onAppKeyPress(number);
+    }
+
+    onNewAppKeyPress(number) {
+        this.getCurrentAppList().onNewAppKeyPress(number);
+    }
+
     handleMonitorWindowsPrefsChange(value) {
         
     }
diff -ruw grouped-window-list@cinnamon.org.bak/appList.js grouped-window-list@cinnamon.org/appList.js
--- grouped-window-list@cinnamon.org.bak/appList.js	2019-12-12 18:46:55.000000000 +0700
+++ grouped-window-list@cinnamon.org/appList.js	2019-12-21 09:09:18.606717948 +0700
@@ -94,6 +94,16 @@
         if (typeof cb === 'function') cb();
     }
 
+    onAppKeyPress(number) {
+        if (!this.appList[number - 1]) return;
+        this.appList[number - 1].onAppKeyPress(number);
+    }
+
+    onNewAppKeyPress(number) {
+        if (number > this.appList.length) return;
+        this.appList[number - 1].launchNewInstance();
+    }
+
     // Gets a list of every app on the current workspace
     getSpecialApps() {
         this.specialApps = [];

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