Adds spoken phrases history

Author: Kirill Belousov

src/historyStorage.cpp

@@ -0,0 +1,46 @@
+#include "historyStorage.h"
+
+#include <algorithm>
+
+void HistoryStorage::push(const std::string& text) {
+    m_messages.push_back(text);
+}
+
+std::string HistoryStorage::getNextByText(const std::string& text) {
+    if (m_messages.empty()) {
+        return "";
+    }
+    if (text.empty()) {
+        return "";
+    }
+    if (m_messages.size() == 1) {
+        return "";
+    }
+    auto iter = std::find(m_messages.begin(), m_messages.end(), text);
+    if (iter == m_messages.end()) {
+        return "";
+    }
+    auto idx = std::distance(m_messages.begin(), iter);
+    if (idx >= (m_messages.size() - 1)) {
+        return "";
+    }
+    return m_messages[idx + 1];
+}
+
+std::string HistoryStorage::getPreviousByText(const std::string& text) {
+    if (m_messages.empty()) {
+        return "";
+    }
+    if (text.empty()) {
+        return m_messages[m_messages.size() - 1];
+    }
+    auto iter = std::find(m_messages.begin(), m_messages.end(), text);
+    if (iter == m_messages.end()) {
+        return "";
+    }
+    auto idx = std::distance(m_messages.begin(), iter);
+    if (idx <= 0) {
+        return m_messages[0];
+    }
+    return m_messages[idx - 1];
+}

src/historyStorage.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "singleton.h"
+
+#include <string>
+#include <vector>
+
+class HistoryStorage {
+  public:
+    void push(const std::string& text);
+    std::string getNextByText(const std::string& text);
+    std::string getPreviousByText(const std::string& text);
+
+  private:
+    std::vector<std::string> m_messages;
+};
+
+#define g_HistoryStorage CSingleton<HistoryStorage>::GetInstance()

src/ui.cpp

@@ -1,6 +1,7 @@
 #include "ui.h"
 
 #include "audio.h"
+#include "historyStorage.h"
 #include "loggerSetup.h"
 #include "speech.h"
 
@@ -62,6 +63,7 @@ MainFrame::MainFrame(const wxString& title) : wxFrame(nullptr, wxID_ANY, title)
     m_rateSlider->Bind(wxEVT_SLIDER, &MainFrame::OnRateSliderChange, this);
     m_volumeSlider->Bind(wxEVT_SLIDER, &MainFrame::OnVolumeSliderChange, this);
     m_messageField->Bind(wxEVT_TEXT_ENTER, &MainFrame::OnEnterPress, this);
+    m_messageField->Bind(wxEVT_KEY_DOWN, &MainFrame::OnMessageFieldKeyDown, this);
     m_voicesList->Bind(wxEVT_LISTBOX, &MainFrame::OnVoiceChange, this);
     m_outputDevicesList->Bind(wxEVT_LISTBOX, &MainFrame::OnOutputDeviceChange, this);
     populateVoicesList();
@@ -104,10 +106,25 @@ void MainFrame::OnVolumeSliderChange(wxCommandEvent& event) {
 }
 
 void MainFrame::OnEnterPress(wxCommandEvent& event) {
-    Speech::GetInstance().speak(m_messageField->GetValue().ToUTF8().data());
+    auto text = m_messageField->GetValue();
+    Speech::GetInstance().speak(text.ToUTF8().data());
+    g_HistoryStorage.push(text.ToStdString());
     m_messageField->Clear();
 }
 
+void MainFrame::OnMessageFieldKeyDown(wxKeyEvent& event) {
+    auto text = m_messageField->GetValue().ToStdString();
+    switch (event.GetKeyCode()) {
+        case WXK_UP:
+            m_messageField->SetValue(g_HistoryStorage.getPreviousByText(text));
+            break;
+        case WXK_DOWN:
+            m_messageField->SetValue(g_HistoryStorage.getNextByText(text));
+            break;
+    }
+    event.Skip();
+}
+
 void MainFrame::OnVoiceChange(wxCommandEvent& event) {
     int value = m_voicesList->GetSelection();
     Speech::GetInstance().setVoice(value);

src/ui.h

@@ -18,6 +18,7 @@ class MainFrame : public wxFrame {
     void populateVoicesList();
     void populateDevicesList();
     void OnEnterPress(wxCommandEvent& event);
+    void OnMessageFieldKeyDown(wxKeyEvent& event);
     void OnVoiceChange(wxCommandEvent& event);
     void OnOutputDeviceChange(wxCommandEvent& event);
     void OnRateSliderChange(wxCommandEvent& event);