Merge pull request #4700 from zhaowenlan1779/swkbd-2

applets/swkbd: Add callback support

src/core/frontend/applets/swkbd.cpp

@@ -39,10 +39,6 @@ ValidationError SoftwareKeyboard::ValidateFilters(const std::string& input) cons
         // TODO: check the profanity filter
         LOG_INFO(Frontend, "App requested swkbd profanity filter, but its not implemented.");
     }
-    if (config.filters.enable_callback) {
-        // TODO: check the callback
-        LOG_INFO(Frontend, "App requested a swkbd callback, but its not implemented.");
-    }
     return ValidationError::None;
 }
 
@@ -132,11 +128,21 @@ ValidationError SoftwareKeyboard::Finalize(const std::string& text, u8 button) {
         return error;
     }
     data = {text, button};
+    data_ready = true;
     return ValidationError::None;
 }
 
-void DefaultKeyboard::Setup(const Frontend::KeyboardConfig& config) {
-    SoftwareKeyboard::Setup(config);
+bool SoftwareKeyboard::DataReady() const {
+    return data_ready;
+}
+
+const KeyboardData& SoftwareKeyboard::ReceiveData() {
+    data_ready = false;
+    return data;
+}
+
+void DefaultKeyboard::Execute(const Frontend::KeyboardConfig& config) {
+    SoftwareKeyboard::Execute(config);
 
     auto cfg = Service::CFG::GetModule(Core::System::GetInstance());
     ASSERT_MSG(cfg, "CFG Module missing!");
@@ -157,4 +163,8 @@ void DefaultKeyboard::Setup(const Frontend::KeyboardConfig& config) {
     }
 }
 
+void DefaultKeyboard::ShowError(const std::string& error) {
+    LOG_ERROR(Applet_SWKBD, "Default keyboard text is unaccepted! error: {}", error);
+}
+
 } // namespace Frontend

src/core/frontend/applets/swkbd.h

@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include <atomic>
 #include <unordered_map>
 #include <utility>
 #include <vector>
@@ -82,13 +83,27 @@ enum class ValidationError {
 
 class SoftwareKeyboard {
 public:
-    virtual void Setup(const KeyboardConfig& config) {
-        this->config = KeyboardConfig(config);
+    /**
+     * Executes the software keyboard, configured with the given parameters.
+     */
+    virtual void Execute(const KeyboardConfig& config) {
+        this->config = config;
     }
 
-    const KeyboardData& ReceiveData() const {
-        return data;
-    }
+    /**
+     * Whether the result data is ready to be received.
+     */
+    bool DataReady() const;
+
+    /**
+     * Receives the current result data stored in the applet, and clears the ready state.
+     */
+    const KeyboardData& ReceiveData();
+
+    /**
+     * Shows an error text returned by the callback.
+     */
+    virtual void ShowError(const std::string& error) = 0;
 
     /**
      * Validates if the provided string breaks any of the filter rules. This is meant to be called
@@ -118,11 +133,14 @@ public:
 protected:
     KeyboardConfig config;
     KeyboardData data;
+
+    std::atomic_bool data_ready = false;
 };
 
 class DefaultKeyboard final : public SoftwareKeyboard {
 public:
-    void Setup(const KeyboardConfig& config) override;
+    void Execute(const KeyboardConfig& config) override;
+    void ShowError(const std::string& error) override;
 };
 
 } // namespace Frontend