9f4f71fabe
## Summary
* **What is the goal of this PR?** Adds WiFi Access Point (AP) mode
support for File Transfer, allowing the device to create its own WiFi
network that users can connect to directly - useful when no existing
WiFi network is available. And in my experience is faster when the
device is right next to your laptop (but maybe further from your wifi)
* **What changes are included?**
- New `NetworkModeSelectionActivity` - an interstitial screen asking
users to choose between:
- "Join a Network" - connects to an existing WiFi network (existing
behavior)
- "Create Hotspot" - creates a WiFi access point named
"CrossPoint-Reader"
- Modified `CrossPointWebServerActivity` to:
- Launch the network mode selection screen before proceeding
- Support starting an Access Point with mDNS (`crosspoint.local`) and
DNS server for captive portal behavior
- Display appropriate connection info for both modes
- Modified `CrossPointWebServer` to support starting when WiFi is in AP
mode (not just STA connected mode)
## Additional Context
* **AP Mode Details**: The device creates an open WiFi network named
"CrossPoint-Reader". Once connected, users can access the file transfer
page at `http://crosspoint.local/` or `http://192.168.4.1/`
* **DNS Captive Portal**: A DNS server redirects all domain requests to
the device's IP, enabling captive portal behavior on some devices
* **mDNS**: Hostname resolution via `crosspoint.local` is enabled for
both AP and STA modes
* **No breaking changes**: The "Join a Network" option preserves the
existing WiFi connection flow
* **Memory impact**: Minimal - the AP mode uses roughly the same
resources as STA mode
42 lines
1.5 KiB
C++
42 lines
1.5 KiB
C++
#pragma once
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#include <freertos/FreeRTOS.h>
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#include <freertos/semphr.h>
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#include <freertos/task.h>
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#include <functional>
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#include "../Activity.h"
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// Enum for network mode selection
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enum class NetworkMode { JOIN_NETWORK, CREATE_HOTSPOT };
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/**
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* NetworkModeSelectionActivity presents the user with a choice:
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* - "Join a Network" - Connect to an existing WiFi network (STA mode)
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* - "Create Hotspot" - Create an Access Point that others can connect to (AP mode)
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*
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* The onModeSelected callback is called with the user's choice.
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* The onCancel callback is called if the user presses back.
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*/
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class NetworkModeSelectionActivity final : public Activity {
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TaskHandle_t displayTaskHandle = nullptr;
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SemaphoreHandle_t renderingMutex = nullptr;
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int selectedIndex = 0;
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bool updateRequired = false;
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const std::function<void(NetworkMode)> onModeSelected;
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const std::function<void()> onCancel;
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static void taskTrampoline(void* param);
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[[noreturn]] void displayTaskLoop();
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void render() const;
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public:
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explicit NetworkModeSelectionActivity(GfxRenderer& renderer, InputManager& inputManager,
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const std::function<void(NetworkMode)>& onModeSelected,
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const std::function<void()>& onCancel)
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: Activity("NetworkModeSelection", renderer, inputManager), onModeSelected(onModeSelected), onCancel(onCancel) {}
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void onEnter() override;
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void onExit() override;
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void loop() override;
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};
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