feat: add message if text not found

src/widget/form/chatform.cpp

@@ -557,6 +557,7 @@ void ChatForm::onSearchUp(const QString& phrase, const ParameterSearch& paramete
         const QDateTime newBaseDate = history->getDateWhereFindPhrase(pk, earliestMessage, phrase, parameter);
 
         if (!newBaseDate.isValid()) {
+            emit messageNotFoundShow(true);
             return;
         }
 
@@ -568,7 +569,9 @@ void ChatForm::onSearchUp(const QString& phrase, const ParameterSearch& paramete
 
 void ChatForm::onSearchDown(const QString& phrase, const ParameterSearch& parameter)
 {
-    searchInText(phrase, parameter, false);
+    if (!searchInText(phrase, parameter, false)) {
+        emit messageNotFoundShow(false);
+    }
 }
 
 void ChatForm::onFileSendFailed(uint32_t friendId, const QString& fname)

src/widget/form/genericchatform.cpp

@@ -224,6 +224,7 @@ GenericChatForm::GenericChatForm(const Contact* contact, QWidget* parent)
     connect(searchForm, &SearchForm::searchUp, this, &GenericChatForm::onSearchUp);
     connect(searchForm, &SearchForm::searchDown, this, &GenericChatForm::onSearchDown);
     connect(searchForm, &SearchForm::visibleChanged, this, &GenericChatForm::onSearchTriggered);
+    connect(this, &GenericChatForm::messageNotFoundShow, searchForm, &SearchForm::showMessageNotFound);
 
     connect(chatWidget, &ChatLog::workerTimeoutFinished, this, &GenericChatForm::onContinueSearch);
 

src/widget/form/genericchatform.h

@@ -83,6 +83,7 @@ signals:
     void sendAction(uint32_t, QString);
     void chatAreaCleared();
     void messageInserted();
+    void messageNotFoundShow(const bool searchUp);
 
 public slots:
     void focusInput();

src/widget/form/groupchatform.cpp

@@ -214,12 +214,16 @@ void GroupChatForm::searchInBegin(const QString& phrase, const ParameterSearch&
 
 void GroupChatForm::onSearchUp(const QString& phrase, const ParameterSearch& parameter)
 {
-    searchInText(phrase, parameter, true);
+    if (!searchInText(phrase, parameter, true)) {
+        emit messageNotFoundShow(true);
+    }
 }
 
 void GroupChatForm::onSearchDown(const QString& phrase, const ParameterSearch& parameter)
 {
-    searchInText(phrase, parameter, false);
+    if (!searchInText(phrase, parameter, false)) {
+        emit messageNotFoundShow(false);
+    }
 }
 
 void GroupChatForm::onScreenshotClicked()

src/widget/searchform.cpp

@@ -23,15 +23,31 @@
 #include <QVBoxLayout>
 #include <QHBoxLayout>
 #include <QPushButton>
+#include <QLabel>
 #include <QKeyEvent>
 
+const QString STATE_NAME[] = {
+    QString{},
+    QStringLiteral("green"),
+    QStringLiteral("red"),
+};
+
 SearchForm::SearchForm(QWidget* parent) : QWidget(parent)
 {
     QVBoxLayout* layout = new QVBoxLayout();
     QHBoxLayout* layoutNavigation = new QHBoxLayout();
+    QHBoxLayout* layoutMessage = new QHBoxLayout();
+    QSpacerItem *lSpacer = new QSpacerItem(20, 20, QSizePolicy::Expanding, QSizePolicy::Ignored);
+    QSpacerItem *rSpacer = new QSpacerItem(20, 20, QSizePolicy::Expanding, QSizePolicy::Ignored);
     searchLine = new LineEdit();
     settings = new SearchSettingsForm();
+    messageLabel = new QLabel();
+
     settings->setVisible(false);
+    messageLabel->setProperty("state", QStringLiteral("red"));
+    messageLabel->setStyleSheet(Style::getStylesheet(QStringLiteral(":/ui/chatForm/labels.css")));
+    messageLabel->setText(tr("The text could not be found."));
+    messageLabel->setVisible(false);
 
     settingsButton = createButton("searchSettingsButton", "green");
     upButton = createButton("searchUpButton", "green");
@@ -51,6 +67,11 @@ SearchForm::SearchForm(QWidget* parent) : QWidget(parent)
     layout->addLayout(layoutNavigation);
     layout->addWidget(settings);
 
+    layoutMessage->addSpacerItem(lSpacer);
+    layoutMessage->addWidget(messageLabel);
+    layoutMessage->addSpacerItem(rSpacer);
+    layout->addLayout(layoutMessage);
+
     startButton->setHidden(true);
 
     setLayout(layout);
@@ -66,7 +87,7 @@ SearchForm::SearchForm(QWidget* parent) : QWidget(parent)
     connect(startButton, &QPushButton::clicked, this, &SearchForm::clickedStart);
     connect(settingsButton, &QPushButton::clicked, this, &SearchForm::clickedSearch);
 
-    connect(settings, &SearchSettingsForm::updateSettings, this, &SearchForm::changedButtons);
+    connect(settings, &SearchSettingsForm::updateSettings, this, &SearchForm::changedState);
 }
 
 void SearchForm::removeSearchPhrase()
@@ -128,8 +149,25 @@ ParameterSearch SearchForm::getAndCheckParametrSearch()
     return ParameterSearch();
 }
 
+void SearchForm::setStateName(QPushButton *btn, ToolButtonState state)
+{
+    const int index = static_cast<int>(state);
+    btn->setProperty("state", STATE_NAME[index]);
+    btn->setStyleSheet(Style::getStylesheet(QStringLiteral(":/ui/chatForm/buttons.css")));
+    btn->setEnabled(index != 0);
+}
+
+void SearchForm::useBeginState()
+{
+    setStateName(upButton, ToolButtonState::Common);
+    setStateName(downButton, ToolButtonState::Common);
+    messageLabel->setVisible(false);
+}
+
 void SearchForm::changedSearchPhrase(const QString& text)
 {
+    useBeginState();
+
     if (searchPhrase == text) {
         return;
     }
@@ -144,16 +182,21 @@ void SearchForm::changedSearchPhrase(const QString& text)
     isChangedPhrase = true;
     if (isActiveSettings) {
         if (startButton->isHidden()) {
-            changedButtons(true);
+            changedState(true);
         }
     } else {
+        isSearchInBegin = true;
         emit searchInBegin(searchPhrase, getAndCheckParametrSearch());
     }
 }
 
 void SearchForm::clickedUp()
 {
+    setStateName(downButton, ToolButtonState::Common);
+    messageLabel->setVisible(false);
+
     if (startButton->isHidden()) {
+        isSearchInBegin = false;
         emit searchUp(searchPhrase, getAndCheckParametrSearch());
     } else {
         clickedStart();
@@ -162,7 +205,11 @@ void SearchForm::clickedUp()
 
 void SearchForm::clickedDown()
 {
+    setStateName(upButton, ToolButtonState::Common);
+    messageLabel->setVisible(false);
+
     if (startButton->isHidden()) {
+        isSearchInBegin = false;
         emit searchDown(searchPhrase, getAndCheckParametrSearch());
     } else {
         clickedStart();
@@ -177,7 +224,8 @@ void SearchForm::clickedHide()
 
 void SearchForm::clickedStart()
 {
-    changedButtons(false);
+    changedState(false);
+    isSearchInBegin = true;
     emit searchInBegin(searchPhrase, getAndCheckParametrSearch());
 }
 
@@ -185,18 +233,17 @@ void SearchForm::clickedSearch()
 {
     isActiveSettings = !isActiveSettings;
     settings->setVisible(isActiveSettings);
+    useBeginState();
 
     if (isActiveSettings) {
-        settingsButton->setProperty("state", QStringLiteral("red"));
+        setStateName(settingsButton, ToolButtonState::Active);
     } else {
-        settingsButton->setProperty("state", QStringLiteral("green"));
-        changedButtons(false);
+        setStateName(settingsButton, ToolButtonState::Common);
+        changedState(false);
     }
-    settingsButton->setStyleSheet(Style::getStylesheet(QStringLiteral(":/ui/chatForm/buttons.css")));
-    settingsButton->update();
 }
 
-void SearchForm::changedButtons(const bool isUpdate)
+void SearchForm::changedState(const bool isUpdate)
 {
     if (isUpdate) {
         startButton->setHidden(false);
@@ -207,6 +254,21 @@ void SearchForm::changedButtons(const bool isUpdate)
         upButton->setHidden(false);
         downButton->setHidden(false);
     }
+
+    useBeginState();
+}
+
+void SearchForm::showMessageNotFound(const bool searchUp)
+{
+    if (isSearchInBegin) {
+        setStateName(upButton, ToolButtonState::Disabled);
+        setStateName(downButton, ToolButtonState::Disabled);
+    } else if (searchUp) {
+        setStateName(upButton, ToolButtonState::Disabled);
+    } else {
+        setStateName(downButton, ToolButtonState::Disabled);
+    }
+    messageLabel->setVisible(true);
 }
 
 LineEdit::LineEdit(QWidget* parent) : QLineEdit(parent)

src/widget/searchform.h

@@ -25,6 +25,7 @@
 #include "searchtypes.h"
 
 class QPushButton;
+class QLabel;
 class LineEdit;
 class SearchSettingsForm;
 
@@ -32,6 +33,12 @@ class SearchForm final : public QWidget
 {
     Q_OBJECT
 public:
+    enum class ToolButtonState {
+        Disabled = 0,    // Grey
+        Common = 1,      // Green
+        Active = 2,      // Red
+    };
+
     explicit SearchForm(QWidget* parent = nullptr);
     void removeSearchPhrase();
     QString getSearchPhrase() const;
@@ -46,6 +53,8 @@ private:
     // TODO: Merge with 'createButton' from chatformheader.cpp
     QPushButton* createButton(const QString& name, const QString& state);
     ParameterSearch getAndCheckParametrSearch();
+    void setStateName(QPushButton* btn, ToolButtonState state);
+    void useBeginState();
 
     QPushButton* settingsButton;
     QPushButton* upButton;
@@ -54,12 +63,14 @@ private:
     QPushButton* startButton;
     LineEdit* searchLine;
     SearchSettingsForm* settings;
+    QLabel* messageLabel;
 
     QString searchPhrase;
     ParameterSearch parameter;
 
     bool isActiveSettings{false};
     bool isChangedPhrase{false};
+    bool isSearchInBegin{true};
 
 private slots:
     void changedSearchPhrase(const QString& text);
@@ -68,7 +79,10 @@ private slots:
     void clickedHide();
     void clickedStart();
     void clickedSearch();
-    void changedButtons(const bool isUpdate);
+    void changedState(const bool isUpdate);
+
+public slots:
+    void showMessageNotFound(const bool searchUp);
 
 signals:
     void searchInBegin(const QString& phrase, const ParameterSearch& parameter);

ui/chatForm/labels.css

@@ -7,3 +7,8 @@ QLabel:disabled
 {
     color: #ddd;
 }
+
+QLabel[state="red"]
+{
+    color: #e84747;
+}