Added ability to jump center_frequency by right-clicking arrow buttons.

htdocs/index.html

@@ -45,10 +45,10 @@
     <div class="openwebrx-waterfall-container">
         <div id="openwebrx-frequency-container">
             <div id="openwebrx-bookmarks-container" style="z-index:2;">
-                <div class="openwebrx-button openwebrx-round-button openwebrx-tune-button" style="position:absolute;top:30%;left:0;z-index:3;" title="Tune down" onclick="tuneBySteps(-1);">
+                <div class="openwebrx-button openwebrx-round-button openwebrx-tune-button" style="position:absolute;top:30%;left:0;z-index:3;" title="Tune down" onclick="tuneBySteps(-1);" oncontextmenu="jumpBySteps(-1);return false;">
                     <svg viewBox="0 0 80 80"><use xlink:href="static/gfx/svg-defs.svg#left"></use></svg>
                 </div>
-                <div class="openwebrx-button openwebrx-round-button openwebrx-tune-button" style="position:absolute;top:30%;right:0;z-index:3;" title="Tune up" onclick="tuneBySteps(1);">
+                <div class="openwebrx-button openwebrx-round-button openwebrx-tune-button" style="position:absolute;top:30%;right:0;z-index:3;" title="Tune up" onclick="tuneBySteps(1);" oncontextmenu="jumpBySteps(1);return false;">
                     <svg viewBox="0 0 80 80"><use xlink:href="static/gfx/svg-defs.svg#right"></use></svg>
                 </div>
             </div>

htdocs/openwebrx.js

@@ -151,6 +151,17 @@ function tuneBySteps(steps) {
     }
 }
 
+function jumpBySteps(steps) {
+    steps = Math.round(steps);
+    if (steps != 0) {
+        var f = center_freq + steps * bandwidth / 4;
+        ws.send(JSON.stringify({
+            "type": "setfrequency",
+            "params": { "frequency": f }
+        }));
+    }
+}
+
 var waterfall_min_level;
 var waterfall_max_level;
 var waterfall_min_level_default;

owrx/connection.py

@@ -295,6 +295,10 @@ class OpenWebRxReceiverClient(OpenWebRxClient, SdrSourceEventClient):
                         profile = message["params"]["profile"].split("|")
                         self.setSdr(profile[0])
                         self.sdr.activateProfile(profile[1])
+                elif message["type"] == "setfrequency":
+                    if "params" in message and "frequency" in message["params"]:
+                        frequency = message["params"]["frequency"]
+                        self.sdr.setCenterFreq(frequency)
                 elif message["type"] == "connectionproperties":
                     if "params" in message:
                         self.connectionProperties = message["params"]

owrx/source/__init__.py

@@ -231,6 +231,11 @@ class SdrSource(ABC):
         except KeyError:
             logger.warning("invalid profile %s for sdr %s. ignoring", profile_id, self.getId())
 
+    def setCenterFreq(self, frequency):
+        if "center_freq" in self.sdrProps:
+            self.sdrProps["center_freq"] = frequency
+            self.wireEvents()
+
     def getId(self):
         return self.id