Implement nickel_bluetooth action (#152)

closes #142

res/doc

@@ -65,6 +65,7 @@
 #                   nickel_misc        - other stuff which isn't significant enough for its own category
 #                   nickel_open        - opens a view
 #                   nickel_wifi        - controls wifi (note: it doesn't wait for it to connect or disconnect, neither does it check for success)
+#                   nickel_bluetooth   - controls bluetooth
 #                   nickel_orientation - controls screen orientation
 #                                        (devices without an orientation sensor may need to use the kobopatch patch "Allow rotation on all devices" or set [DeveloperSettings] ForceAllowLandscape=true)
 #                                        (devices with an orientation sensor don't need to do anything, but can set the config setting to make this work on all views)
@@ -147,6 +148,12 @@
 #                                          reboot   (4.13.12638+)
 #                                          sleep    (4.13.12638+)
 #                   skip               - the number of actions to skip, or -1 to skip all remaining ones (i.e. end the chain)
+#                   nickel_bluetooth   - one of:
+#                                          enable   (4.34.20097+)
+#                                          disable  (4.34.20097+)
+#                                          toggle   (4.34.20097+)
+#                                          check    (4.34.20097+)
+#                                          scan     (4.34.20097+)
 #
 #   chain_success:<action>:<arg>
 #   chain_failure:<action>:<arg>

src/action.h

@@ -50,6 +50,7 @@ void nm_action_result_free(nm_action_result_t *res);
     X(nickel_misc)        \
     X(nickel_open)        \
     X(nickel_wifi)        \
+    X(nickel_bluetooth)   \
     X(nickel_orientation) \
     X(power)              \
     X(skip)

src/action_cc.cc

@@ -57,6 +57,7 @@ typedef void WirelessWorkflowManager;
 typedef void StatusBarView;
 typedef void MoreController;
 typedef void MainWindowController;
+typedef void BluetoothManager;
 
 #define NM_ACT_SYM(var, sym) reinterpret_cast<void*&>(var) = dlsym(RTLD_DEFAULT, sym)
 #define NM_ACT_XSYM(var, symb, err) do { \
@@ -896,3 +897,72 @@ NM_ACTION_(cmd_output) {
         ? nm_action_result_silent()
         : nm_action_result_msg("%s", qPrintable(Qt::convertFromPlainText(out, Qt::WhiteSpacePre)));
 }
+
+NM_ACTION_(nickel_bluetooth) {
+    enum BLUETOOTH_ACTION {
+        ENABLE  = 0b00001,
+        DISABLE = 0b00010,
+        TOGGLE  = 0b00100,
+        CHECK   = 0b01000,
+        SCAN    = 0b10000
+    };
+
+    int action = 0;
+    if (!strcmp(arg, "enable"))       action |= ENABLE;
+    else if (!strcmp(arg, "disable")) action |= DISABLE;
+    else if (!strcmp(arg, "toggle"))  action |= TOGGLE;
+    else if (!strcmp(arg, "check"))   action |= CHECK;
+    else if (!strcmp(arg, "scan"))    action |= SCAN;
+    else
+        NM_ERR_RET(nullptr, "unknown nickel_bluetooth action '%s'", arg);
+
+    //libnickel 4.34.20097 * _ZN16BluetoothManager14sharedInstanceEv
+    BluetoothManager *(*BluetoothManager_sharedInstance)();
+    NM_ACT_XSYM(BluetoothManager_sharedInstance, "_ZN16BluetoothManager14sharedInstanceEv", "could not dlsym BluetoothManager::sharedInstance");
+
+    //libnickel 4.34.20097 * _ZNK16BluetoothManager2upEv
+    uint (*BluetoothManager_up)(BluetoothManager *);
+    NM_ACT_XSYM(BluetoothManager_up, "_ZNK16BluetoothManager2upEv", "could not dlsym BluetoothManager::up");
+
+    //libnickel 4.34.20097 * _ZN16BluetoothManager2onEv
+    void (*BluetoothManager_on)(BluetoothManager *);
+    NM_ACT_XSYM(BluetoothManager_on, "_ZN16BluetoothManager2onEv", "could not dlsym BluetoothManager::on");
+
+    //libnickel 4.34.20097 * _ZN16BluetoothManager4scanEv
+    void (*BluetoothManager_scan)(BluetoothManager *);
+    NM_ACT_XSYM(BluetoothManager_scan, "_ZN16BluetoothManager4scanEv", "could not dlsym BluetoothManager::BluetoothManager::scanEv");
+
+    //libnickel 4.34.20097 * _ZN16BluetoothManager8stopScanEv
+    void (*BluetoothManager_stopScan)(BluetoothManager *);
+    NM_ACT_XSYM(BluetoothManager_stopScan, "_ZN16BluetoothManager8stopScanEv", "could not dlsym BluetoothManager::stopScan");
+
+    //libnickel 4.34.20097 * _ZN16BluetoothManager3offEv
+    void (*BluetoothManager_off)(BluetoothManager *);
+    NM_ACT_XSYM(BluetoothManager_off, "_ZN16BluetoothManager3offEv", "could not dlsym BluetoothManager::off");
+
+    BluetoothManager *btm = BluetoothManager_sharedInstance();
+    NM_CHECK(nullptr, btm, "could not get shared bluetooth manager pointer");
+
+    uint isUp = BluetoothManager_up(btm);
+    if (action & TOGGLE)
+        action = (action & ~TOGGLE) | (isUp ? DISABLE : ENABLE);
+
+     switch (action) {
+        case CHECK:
+            return nm_action_result_toast("Bluetooth is %s.", isUp ? "on" : "off");
+        case ENABLE:
+            BluetoothManager_on(btm);
+            BluetoothManager_scan(btm);
+            return nm_action_result_toast("Bluetooth turned on.");
+        case DISABLE:
+            BluetoothManager_stopScan(btm);
+            BluetoothManager_off(btm);
+            return nm_action_result_toast("Bluetooth turned off.");
+        case SCAN:
+            BluetoothManager_scan(btm);
+            return nm_action_result_toast("Bluetooth scan initiated.");
+        default:
+            NM_ERR_RET(nullptr, "unknown nickel_bluetooth action '%s'", arg);
+            break;
+    }
+}