refine tab list menu by adding VOpenedListMenu

1. Group opened files by notebook and directory;
2. Type the sequence number to activate a certain item in the popup menu;
3. Ctrl+[, Ctrl+J, Ctrl+K

src/src.pro

@@ -56,7 +56,8 @@ SOURCES += main.cpp\
     dialog/vsettingsdialog.cpp \
     dialog/vdeletenotebookdialog.cpp \
     dialog/vselectdialog.cpp \
-    vcaptain.cpp
+    vcaptain.cpp \
+    vopenedlistmenu.cpp
 
 HEADERS  += vmainwindow.h \
     vdirectorytree.h \
@@ -98,7 +99,8 @@ HEADERS  += vmainwindow.h \
     dialog/vsettingsdialog.h \
     dialog/vdeletenotebookdialog.h \
     dialog/vselectdialog.h \
-    vcaptain.h
+    vcaptain.h \
+    vopenedlistmenu.h
 
 RESOURCES += \
     vnote.qrc \

src/vconstants.h

@@ -8,4 +8,5 @@ enum class OpenFileMode {Read = 0, Edit};
 static const qreal c_webZoomFactorMax = 5;
 static const qreal c_webZoomFactorMin = 0.25;
 
+static const int c_tabSequenceBase = 1;
 #endif

src/veditwindow.cpp

@@ -8,6 +8,7 @@
 #include "vfile.h"
 #include "vmainwindow.h"
 #include "veditarea.h"
+#include "vopenedlistmenu.h"
 
 extern VConfigManager vconfig;
 
@@ -63,17 +64,14 @@ void VEditWindow::initTabActions()
 void VEditWindow::setupCornerWidget()
 {
     // Left corner button
-    tabListAct = new QActionGroup(this);
-    connect(tabListAct, &QActionGroup::triggered,
-            this, &VEditWindow::tabListJump);
     leftBtn = new QPushButton(QIcon(":/resources/icons/corner_tablist.svg"),
                               "", this);
     leftBtn->setProperty("CornerBtn", true);
-    QMenu *leftMenu = new QMenu(this);
+    VOpenedListMenu *leftMenu = new VOpenedListMenu(this);
+    connect(leftMenu, &VOpenedListMenu::fileTriggered,
+            this, &VEditWindow::tabListJump);
     leftBtn->setMenu(leftMenu);
     setCornerWidget(leftBtn, Qt::TopLeftCorner);
-    connect(leftMenu, &QMenu::aboutToShow,
-            this, &VEditWindow::updateTabListMenu);
 
     // Right corner button
     // Actions
@@ -453,49 +451,18 @@ void VEditWindow::tabbarContextMenuRequested(QPoint p_pos)
     menu.exec(bar->mapToGlobal(p_pos));
 }
 
-void VEditWindow::tabListJump(QAction *action)
+void VEditWindow::tabListJump(VFile *p_file)
 {
-    if (!action) {
+    if (!p_file) {
         return;
     }
 
-    QPointer<VFile> file = action->data().value<QPointer<VFile>>();
-    int idx = findTabByFile(file);
+    int idx = findTabByFile(p_file);
     Q_ASSERT(idx >= 0);
     setCurrentIndex(idx);
     noticeStatus(idx);
 }
 
-void VEditWindow::updateTabListMenu()
-{
-    // Re-generate the tab list menu
-    QMenu *menu = leftBtn->menu();
-    QList<QAction *> actions = menu->actions();
-    int nrActions = actions.size();
-    for (int i = 0; i < nrActions; ++i) {
-        QAction *tmpAct = actions.at(i);
-        menu->removeAction(tmpAct);
-        tabListAct->removeAction(tmpAct);
-        delete tmpAct;
-    }
-
-    int curTab = currentIndex();
-    int nrTab = count();
-    for (int i = 0; i < nrTab; ++i) {
-        VEditTab *editor = getTab(i);
-        QPointer<VFile> file = editor->getFile();
-        QAction *action = new QAction(tabIcon(i), tabText(i), tabListAct);
-        action->setStatusTip(generateTooltip(file));
-        action->setData(QVariant::fromValue(file));
-        if (i == curTab) {
-            QFont font;
-            font.setBold(true);
-            action->setFont(font);
-        }
-        menu->addAction(action);
-    }
-}
-
 void VEditWindow::updateSplitMenu()
 {
     if (canRemoveSplit()) {
@@ -757,11 +724,10 @@ bool VEditWindow::showOpenedFileList()
 
 bool VEditWindow::activateTab(int p_sequence)
 {
-    const int base = 1;
-    if (p_sequence < base || p_sequence >= (base + count())) {
+    if (p_sequence < c_tabSequenceBase || p_sequence >= (c_tabSequenceBase + count())) {
         return false;
     }
-    setCurrentIndex(p_sequence - base);
+    setCurrentIndex(p_sequence - c_tabSequenceBase);
     return true;
 }
 
@@ -777,3 +743,9 @@ bool VEditWindow::alternateTab()
     }
     return false;
 }
+
+VEditTab* VEditWindow::getTab(int tabIndex) const
+{
+    return dynamic_cast<VEditTab *>(widget(tabIndex));
+}
+

src/veditwindow.h

@@ -9,6 +9,7 @@
 #include "vnotebook.h"
 #include "vedittab.h"
 #include "vtoc.h"
+#include "vconstants.h"
 
 class VNote;
 class QPushButton;
@@ -53,6 +54,7 @@ public:
     bool activateTab(int p_sequence);
     // Switch to previous activated tab.
     bool alternateTab();
+    VEditTab *getTab(int tabIndex) const;
 
 protected:
     void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
@@ -73,11 +75,10 @@ private slots:
     void handleTabbarClicked(int p_index);
     void handleCurrentIndexChanged(int p_index);
     void contextMenuRequested(QPoint pos);
-    void tabListJump(QAction *action);
+    void tabListJump(VFile *p_file);
     void handleOutlineChanged(const VToc &p_toc);
     void handleCurHeaderChanged(const VAnchor &p_anchor);
     void handleTabStatusChanged();
-    void updateTabListMenu();
     void updateSplitMenu();
     void tabbarContextMenuRequested(QPoint p_pos);
     void handleLocateAct();
@@ -91,7 +92,6 @@ private:
     int insertEditTab(int p_index, VFile *p_file, QWidget *p_page);
     int appendEditTab(VFile *p_file, QWidget *p_page);
     int openFileInTab(VFile *p_file, OpenFileMode p_mode);
-    inline VEditTab *getTab(int tabIndex) const;
     void noticeTabStatus(int p_index);
     void noticeStatus(int index);
     inline QString generateTooltip(const VFile *p_file) const;
@@ -118,18 +118,12 @@ private:
     // Actions
     QAction *splitAct;
     QAction *removeSplitAct;
-    QActionGroup *tabListAct;
     // Locate current note in the directory and file list
     QAction *m_locateAct;
     QAction *m_moveLeftAct;
     QAction *m_moveRightAct;
 };
 
-inline VEditTab* VEditWindow::getTab(int tabIndex) const
-{
-    return dynamic_cast<VEditTab *>(widget(tabIndex));
-}
-
 inline QString VEditWindow::generateTooltip(const VFile *p_file) const
 {
     if (!p_file) {
@@ -142,9 +136,7 @@ inline QString VEditWindow::generateTooltip(const VFile *p_file) const
 inline QString VEditWindow::generateTabText(int p_index, const QString &p_name,
                                             bool p_modified) const
 {
-    // Based on 1.
-    const int base = 1;
-    QString seq = QString::number(p_index + base, 10);
+    QString seq = QString::number(p_index + c_tabSequenceBase, 10);
     return seq + ". " + (p_modified ? (p_name + "*") : p_name);
 }
 

src/vnote.cpp

@@ -52,6 +52,7 @@ void VNote::initPalette(QPalette palette)
     m_palette.append(QPair<QString, QString>("Teal2", "#80CBC4"));
     m_palette.append(QPair<QString, QString>("Teal3", "#4DB6AC"));
     m_palette.append(QPair<QString, QString>("Teal4", "#26A69A"));
+    m_palette.append(QPair<QString, QString>("Teal5", "#009688"));
 
     m_palette.append(QPair<QString, QString>("Indigo0", "#E8EAF6"));
     m_palette.append(QPair<QString, QString>("Indigo1", "#C5CAE9"));

src/vopenedlistmenu.cpp

@@ -0,0 +1,285 @@
+#include "vopenedlistmenu.h"
+#include <QActionGroup>
+#include <QAction>
+#include <QFont>
+#include <QVector>
+#include <QTimer>
+#include <QString>
+#include <QStyleFactory>
+
+#include "veditwindow.h"
+#include "vfile.h"
+#include "vedittab.h"
+#include "vdirectory.h"
+#include "utils/vutils.h"
+
+static const int c_cmdTime = 1 * 1000;
+
+static bool fileComp(const VOpenedListMenu::ItemInfo &a,
+                     const VOpenedListMenu::ItemInfo &b)
+{
+    QString notebooka = a.file->getNotebookName().toLower();
+    QString notebookb = b.file->getNotebookName().toLower();
+    if (notebooka < notebookb) {
+        return true;
+    } else if (notebooka > notebookb) {
+        return false;
+    } else {
+        QString patha = a.file->retriveRelativePath().toLower();
+        QString pathb = b.file->retriveRelativePath().toLower();
+        return patha < pathb;
+    }
+}
+
+VOpenedListMenu::VOpenedListMenu(VEditWindow *p_editWin)
+    : QMenu(p_editWin), m_editWin(p_editWin), m_cmdNum(0)
+{
+    // Force to display separator text on Windows and macOS.
+    setStyle(QStyleFactory::create("Fusion"));
+    setStyleSheet("::separator { color: #009688; height: 15px; padding-top: 5px; }");
+
+    setToolTipsVisible(true);
+
+    m_cmdTimer = new QTimer(this);
+    m_cmdTimer->setSingleShot(true);
+    m_cmdTimer->setInterval(c_cmdTime);
+    connect(m_cmdTimer, &QTimer::timeout,
+            this, &VOpenedListMenu::cmdTimerTimeout);
+
+    connect(this, &QMenu::aboutToShow,
+            this, &VOpenedListMenu::updateOpenedList);
+    connect(this, &QMenu::triggered,
+            this, &VOpenedListMenu::handleItemTriggered);
+}
+
+void VOpenedListMenu::updateOpenedList()
+{
+    // Regenerate the opened list.
+    m_seqActionMap.clear();
+    clear();
+
+    int curTab = m_editWin->currentIndex();
+    int nrTab = m_editWin->count();
+    QVector<ItemInfo> files(nrTab);
+    for (int i = 0; i < nrTab; ++i) {
+        files[i].file = m_editWin->getTab(i)->getFile();
+        files[i].index = i;
+    }
+
+    std::sort(files.begin(), files.end(), fileComp);
+
+    QString notebook;
+    const VDirectory *directory = NULL;
+    QFont sepFont;
+    sepFont.setItalic(true);
+    for (int i = 0; i < nrTab; ++i) {
+        QPointer<VFile> file = files[i].file;
+        int index = files[i].index;
+
+        // Whether add separator.
+        QString curNotebook = file->getNotebookName();
+        if (curNotebook != notebook || file->getDirectory() != directory) {
+            notebook = curNotebook;
+            directory = file->getDirectory();
+            QString text = QString("[%1] %2").arg(notebook).arg(directory->getName());
+            QAction *sepAct = addSection(text);
+            sepAct->setFont(sepFont);
+        }
+
+        QAction *action = new QAction(m_editWin->tabIcon(index),
+                                      m_editWin->tabText(index));
+        action->setToolTip(generateDescription(file));
+        action->setData(QVariant::fromValue(file));
+        if (index == curTab) {
+            QFont boldFont;
+            boldFont.setBold(true);
+            action->setFont(boldFont);
+        }
+        addAction(action);
+        m_seqActionMap[index + c_tabSequenceBase] = action;
+    }
+}
+
+QString VOpenedListMenu::generateDescription(const VFile *p_file) const
+{
+    if (!p_file) {
+        return "";
+    }
+    // [Notebook]path
+    return QString("[%1] %2").arg(p_file->getNotebookName()).arg(p_file->retrivePath());
+}
+
+void VOpenedListMenu::handleItemTriggered(QAction *p_action)
+{
+    if (!p_action) {
+        return;
+    }
+    QPointer<VFile> file = p_action->data().value<QPointer<VFile>>();
+    emit fileTriggered(file);
+}
+
+void VOpenedListMenu::keyPressEvent(QKeyEvent *p_event)
+{
+    int key = p_event->key();
+    int modifiers = p_event->modifiers();
+    switch (key) {
+    case Qt::Key_0:
+    case Qt::Key_1:
+    case Qt::Key_2:
+    case Qt::Key_3:
+    case Qt::Key_4:
+    case Qt::Key_5:
+    case Qt::Key_6:
+    case Qt::Key_7:
+    case Qt::Key_8:
+    case Qt::Key_9:
+    {
+        addDigit(key - Qt::Key_0);
+        return;
+    }
+
+    case Qt::Key_BracketLeft:
+    {
+        m_cmdTimer->stop();
+        m_cmdNum = 0;
+        if (modifiers == Qt::ControlModifier) {
+            hide();
+            return;
+        }
+        break;
+    }
+
+    case Qt::Key_J:
+    {
+        m_cmdTimer->stop();
+        m_cmdNum = 0;
+        if (modifiers == Qt::ControlModifier) {
+            QList<QAction *> acts = actions();
+            if (acts.size() == 0) {
+                return;
+            }
+            int idx = 0;
+            QAction *act = activeAction();
+            if (act) {
+                for (int i = 0; i < acts.size(); ++i) {
+                    if (acts.at(i) == act) {
+                        idx = i + 1;
+                        break;
+                    }
+                }
+            }
+            while (true) {
+                if (idx >= acts.size()) {
+                    idx = 0;
+                }
+                act = acts.at(idx);
+                if (act->isSeparator() || !act->isVisible()) {
+                    ++idx;
+                } else {
+                    break;
+                }
+            }
+            setActiveAction(act);
+            return;
+        }
+        break;
+    }
+
+    case Qt::Key_K:
+    {
+        m_cmdTimer->stop();
+        m_cmdNum = 0;
+        if (modifiers == Qt::ControlModifier) {
+            QList<QAction *> acts = actions();
+            if (acts.size() == 0) {
+                return;
+            }
+            int idx = acts.size() - 1;
+            QAction *act = activeAction();
+            if (act) {
+                for (int i = 0; i < acts.size(); ++i) {
+                    if (acts.at(i) == act) {
+                        idx = i - 1;
+                        break;
+                    }
+                }
+            }
+            while (true) {
+                if (idx < 0) {
+                    idx = acts.size() - 1;
+                }
+                act = acts.at(idx);
+                if (act->isSeparator() || !act->isVisible()) {
+                    --idx;
+                } else {
+                    break;
+                }
+            }
+            setActiveAction(act);
+            return;
+        }
+        break;
+    }
+
+    default:
+        m_cmdTimer->stop();
+        m_cmdNum = 0;
+        break;
+    }
+    QMenu::keyPressEvent(p_event);
+}
+
+void VOpenedListMenu::cmdTimerTimeout()
+{
+    if (m_cmdNum > 0) {
+        triggerItem(m_cmdNum);
+        m_cmdNum = 0;
+    }
+}
+
+void VOpenedListMenu::addDigit(int p_digit)
+{
+    V_ASSERT(p_digit >= 0 && p_digit <= 9);
+    m_cmdTimer->stop();
+    m_cmdNum = m_cmdNum * 10 + p_digit;
+
+    int totalItem = m_seqActionMap.size();
+    // Try to trigger it ASAP.
+    if (m_cmdNum > 0) {
+        if (getNumOfDigit(m_cmdNum) == getNumOfDigit(totalItem)) {
+            triggerItem(m_cmdNum);
+            m_cmdNum = 0;
+            return;
+        }
+        // Set active action to the candidate.
+        auto it = m_seqActionMap.find(m_cmdNum);
+        if (it != m_seqActionMap.end()) {
+            QAction *act = it.value();
+            setActiveAction(act);
+        }
+    }
+    m_cmdTimer->start();
+}
+
+int VOpenedListMenu::getNumOfDigit(int p_num)
+{
+    int nrDigit = 1;
+    while (true) {
+        p_num /= 10;
+        if (p_num == 0) {
+            return nrDigit;
+        } else {
+            ++nrDigit;
+        }
+    }
+}
+
+void VOpenedListMenu::triggerItem(int p_seq)
+{
+    auto it = m_seqActionMap.find(p_seq);
+    if (it != m_seqActionMap.end()) {
+        QAction *act = it.value();
+        act->trigger();
+        hide();
+    }
+}

src/vopenedlistmenu.h

@@ -0,0 +1,48 @@
+#ifndef VOPENEDLISTMENU_H
+#define VOPENEDLISTMENU_H
+
+#include <QMenu>
+#include <QMap>
+
+class VEditWindow;
+class VFile;
+class QAction;
+class QKeyEvent;
+class QTimer;
+
+class VOpenedListMenu : public QMenu
+{
+    Q_OBJECT
+public:
+    struct ItemInfo {
+        VFile *file;
+        int index;
+    };
+
+    explicit VOpenedListMenu(VEditWindow *p_editWin);
+
+protected:
+    void keyPressEvent(QKeyEvent *p_event) Q_DECL_OVERRIDE;
+
+signals:
+    void fileTriggered(VFile *p_file);
+
+private slots:
+    void updateOpenedList();
+    void handleItemTriggered(QAction *p_action);
+    void cmdTimerTimeout();
+
+private:
+    QString generateDescription(const VFile *p_file) const;
+    void addDigit(int p_digit);
+    int getNumOfDigit(int p_num);
+    void triggerItem(int p_seq);
+
+    VEditWindow *m_editWin;
+    // The number user pressed.
+    int m_cmdNum;
+    QTimer *m_cmdTimer;
+    QMap<int, QAction*> m_seqActionMap;
+};
+
+#endif // VOPENEDLISTMENU_H