support Universal Entry

`Ctrl+G` to call out the Universal Entry.

src/resources/vnote.ini

@@ -300,6 +300,8 @@ FlashPage=Ctrl+Alt+L
 OpenViaDefaultProgram=F12
 ; Full screen
 FullScreen=F11
+; Universal Entry
+UniversalEntry=Ctrl+G
 
 [captain_mode_shortcuts]
 ; Define shortcuts in Captain mode here.

src/src.pro

@@ -117,7 +117,8 @@ SOURCES += main.cpp\
     vsearcher.cpp \
     vsearch.cpp \
     vsearchresulttree.cpp \
-    vsearchengine.cpp
+    vsearchengine.cpp \
+    vuniversalentry.cpp
 
 HEADERS  += vmainwindow.h \
     vdirectorytree.h \
@@ -224,7 +225,8 @@ HEADERS  += vmainwindow.h \
     vsearchresulttree.h \
     isearchengine.h \
     vsearchconfig.h \
-    vsearchengine.h
+    vsearchengine.h \
+    vuniversalentry.h
 
 RESOURCES += \
     vnote.qrc \

src/vcaptain.cpp

@@ -29,10 +29,10 @@ VCaptain::VCaptain(QWidget *p_parent)
 
     // Register Captain mode leader key.
     // This can fix the Input Method blocking issue.
-    QShortcut *shortcut = new QShortcut(QKeySequence(g_config->getShortcutKeySequence("CaptainMode")),
+    m_captainModeShortcut = new QShortcut(QKeySequence(g_config->getShortcutKeySequence("CaptainMode")),
                                           this);
-    shortcut->setContext(Qt::ApplicationShortcut);
-    connect(shortcut, &QShortcut::activated,
+    m_captainModeShortcut->setContext(Qt::ApplicationShortcut);
+    connect(m_captainModeShortcut, &QShortcut::activated,
             this, &VCaptain::trigger);
 
     // Register Navigation mode as Captain mode target.
@@ -280,3 +280,8 @@ bool VCaptain::handleKeyPressCaptainMode(int p_key,
 
     return true;
 }
+
+void VCaptain::setCaptainModeEnabled(bool p_enabled)
+{
+    m_captainModeShortcut->setEnabled(p_enabled);
+}

src/vcaptain.h

@@ -43,6 +43,8 @@ public:
                                void *p_target,
                                CaptainFunc p_func);
 
+    void setCaptainModeEnabled(bool p_enabled);
+
 signals:
     // Emit when mode changed.
     void captainModeChanged(bool p_captainMode);
@@ -171,6 +173,8 @@ private:
 
     // Ignore focus change during handling Captain and Navigation target actions.
     bool m_ignoreFocusChange;
+
+    QShortcut *m_captainModeShortcut;
 };
 
 inline void VCaptain::setMode(CaptainMode p_mode)
@@ -182,5 +186,4 @@ inline bool VCaptain::checkMode(CaptainMode p_mode) const
 {
     return m_mode == p_mode;
 }
-
 #endif // VCAPTAIN_H

src/veditarea.cpp

@@ -1105,3 +1105,14 @@ void VEditArea::handleFileTimerTimeout()
         }
     }
 }
+
+QRect VEditArea::editAreaRect() const
+{
+    QRect rt = rect();
+    int nrWin = splitter->count();
+    if (nrWin > 0) {
+        rt.setTopLeft(QPoint(0, getWindow(0)->tabBarHeight()));
+    }
+
+    return rt;
+}

src/veditarea.h

@@ -83,6 +83,9 @@ public:
     // Record a closed file in the stack.
     void recordClosedFile(const VFileSessionInfo &p_file);
 
+    // Return the rect not containing the tab bar.
+    QRect editAreaRect() const;
+
 signals:
     // Emit when current window's tab status updated.
     void tabStatusUpdated(const VEditTabInfo &p_info);

src/veditwindow.cpp

@@ -1191,3 +1191,8 @@ void VEditWindow::tabRequestToClose(VEditTab *p_tab)
         p_tab->deleteLater();
     }
 }
+
+int VEditWindow::tabBarHeight() const
+{
+    return tabBar()->height();
+}

src/veditwindow.h

@@ -83,6 +83,8 @@ public:
     // Auto save file.
     void saveAll();
 
+    int tabBarHeight() const;
+
 protected:
     void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
 

src/vmainwindow.cpp

@@ -39,6 +39,7 @@
 #include "vcart.h"
 #include "dialog/vexportdialog.h"
 #include "vsearcher.h"
+#include "vuniversalentry.h"
 
 extern VConfigManager *g_config;
 
@@ -64,7 +65,8 @@ VMainWindow::VMainWindow(VSingleInstanceGuard *p_guard, QWidget *p_parent)
       m_guard(p_guard),
       m_windowOldState(Qt::WindowNoState),
       m_requestQuit(false),
-      m_printer(NULL)
+      m_printer(NULL),
+      m_ue(NULL)
 {
     qsrand(QDateTime::currentDateTime().toTime_t());
 
@@ -145,7 +147,7 @@ void VMainWindow::registerCaptainAndNavigationTargets()
     m_captain->registerNavigationTarget(notebookSelector);
     m_captain->registerNavigationTarget(directoryTree);
     m_captain->registerNavigationTarget(m_fileList);
-    m_captain->registerNavigationTarget(editArea);
+    m_captain->registerNavigationTarget(m_editArea);
     m_captain->registerNavigationTarget(m_toolBox);
     m_captain->registerNavigationTarget(outline);
     m_captain->registerNavigationTarget(m_snippetList);
@@ -205,11 +207,11 @@ void VMainWindow::setupUI()
     m_fileList = new VFileList();
     m_fileList->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Expanding);
 
-    editArea = new VEditArea();
-    editArea->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
-    m_findReplaceDialog = editArea->getFindReplaceDialog();
-    m_fileList->setEditArea(editArea);
-    directoryTree->setEditArea(editArea);
+    m_editArea = new VEditArea();
+    m_editArea->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+    m_findReplaceDialog = m_editArea->getFindReplaceDialog();
+    m_fileList->setEditArea(m_editArea);
+    directoryTree->setEditArea(m_editArea);
 
     // Main Splitter
     m_mainSplitter = new QSplitter();
@@ -217,7 +219,7 @@ void VMainWindow::setupUI()
     m_mainSplitter->addWidget(directoryPanel);
     m_mainSplitter->addWidget(m_fileList);
     setTabOrder(directoryTree, m_fileList->getContentWidget());
-    m_mainSplitter->addWidget(editArea);
+    m_mainSplitter->addWidget(m_editArea);
     m_mainSplitter->setStretchFactor(0, 0);
     m_mainSplitter->setStretchFactor(1, 0);
     m_mainSplitter->setStretchFactor(2, 1);
@@ -226,10 +228,10 @@ void VMainWindow::setupUI()
     connect(directoryTree, &VDirectoryTree::currentDirectoryChanged,
             m_fileList, &VFileList::setDirectory);
     connect(directoryTree, &VDirectoryTree::directoryUpdated,
-            editArea, &VEditArea::handleDirectoryUpdated);
+            m_editArea, &VEditArea::handleDirectoryUpdated);
 
     connect(notebookSelector, &VNotebookSelector::notebookUpdated,
-            editArea, &VEditArea::handleNotebookUpdated);
+            m_editArea, &VEditArea::handleNotebookUpdated);
     connect(notebookSelector, &VNotebookSelector::notebookCreated,
             directoryTree, [this](const QString &p_name, bool p_import) {
                 Q_UNUSED(p_name);
@@ -239,16 +241,16 @@ void VMainWindow::setupUI()
             });
 
     connect(m_fileList, &VFileList::fileClicked,
-            editArea, &VEditArea::openFile);
+            m_editArea, &VEditArea::openFile);
     connect(m_fileList, &VFileList::fileCreated,
-            editArea, &VEditArea::openFile);
+            m_editArea, &VEditArea::openFile);
     connect(m_fileList, &VFileList::fileUpdated,
-            editArea, &VEditArea::handleFileUpdated);
-    connect(editArea, &VEditArea::tabStatusUpdated,
+            m_editArea, &VEditArea::handleFileUpdated);
+    connect(m_editArea, &VEditArea::tabStatusUpdated,
             this, &VMainWindow::handleAreaTabStatusUpdated);
-    connect(editArea, &VEditArea::statusMessage,
+    connect(m_editArea, &VEditArea::statusMessage,
             this, &VMainWindow::showStatusMessage);
-    connect(editArea, &VEditArea::vimStatusUpdated,
+    connect(m_editArea, &VEditArea::vimStatusUpdated,
             this, &VMainWindow::handleVimStatusUpdated);
     connect(m_findReplaceDialog, &VFindReplaceDialog::findTextChanged,
             this, &VMainWindow::handleFindDialogTextChanged);
@@ -705,7 +707,7 @@ void VMainWindow::initFileToolBar(QSize p_iconSize)
     VUtils::fixTextWithCaptainShortcut(m_discardExitAct, "DiscardAndRead");
     m_discardExitAct->setStatusTip(tr("Discard changes and exit edit mode"));
     connect(m_discardExitAct, &QAction::triggered,
-            editArea, &VEditArea::readFile);
+            m_editArea, &VEditArea::readFile);
 
     updateEditReadAct(NULL);
 
@@ -720,7 +722,7 @@ void VMainWindow::initFileToolBar(QSize p_iconSize)
     }
 
     connect(saveNoteAct, &QAction::triggered,
-            editArea, &VEditArea::saveFile);
+            m_editArea, &VEditArea::saveFile);
 
     newRootDirAct->setEnabled(false);
     newNoteAct->setEnabled(false);
@@ -778,7 +780,7 @@ void VMainWindow::initHelpMenu()
             this, [this](){
                 QString docFile = VUtils::getDocFile(VNote::c_markdownGuideDocFile);
                 VFile *file = vnote->getOrphanFile(docFile, false, true);
-                editArea->openFile(file, OpenFileMode::Read);
+                m_editArea->openFile(file, OpenFileMode::Read);
             });
 
     QAction *docAct = new QAction(tr("&Documentation"), this);
@@ -1306,12 +1308,12 @@ void VMainWindow::initToolsDock()
 
     // Outline tree.
     outline = new VOutline(this);
-    connect(editArea, &VEditArea::outlineChanged,
+    connect(m_editArea, &VEditArea::outlineChanged,
             outline, &VOutline::updateOutline);
-    connect(editArea, &VEditArea::currentHeaderChanged,
+    connect(m_editArea, &VEditArea::currentHeaderChanged,
             outline, &VOutline::updateCurrentHeader);
     connect(outline, &VOutline::outlineItemActivated,
-            editArea, &VEditArea::scrollToHeader);
+            m_editArea, &VEditArea::scrollToHeader);
 
     // Snippets.
     m_snippetList = new VSnippetList(this);
@@ -2196,7 +2198,7 @@ void VMainWindow::closeEvent(QCloseEvent *event)
         QVector<VFileSessionInfo> fileInfos;
         QVector<VEditTabInfo> tabs;
         if (saveOpenedNotes) {
-            tabs = editArea->getAllTabsInfo();
+            tabs = m_editArea->getAllTabsInfo();
 
             fileInfos.reserve(tabs.size());
 
@@ -2215,7 +2217,7 @@ void VMainWindow::closeEvent(QCloseEvent *event)
             }
         }
 
-        if (!editArea->closeAllFiles(false)) {
+        if (!m_editArea->closeAllFiles(false)) {
             // Fail to close all the opened files, cancel closing app.
             event->ignore();
             return;
@@ -2380,7 +2382,7 @@ void VMainWindow::handleFindDialogTextChanged(const QString &p_text, uint /* p_o
 
 void VMainWindow::openFindDialog()
 {
-    m_findReplaceDialog->openDialog(editArea->getSelectedText());
+    m_findReplaceDialog->openDialog(m_editArea->getSelectedText());
 }
 
 void VMainWindow::viewSettings()
@@ -2392,7 +2394,7 @@ void VMainWindow::viewSettings()
 void VMainWindow::closeCurrentFile()
 {
     if (m_curFile) {
-        editArea->closeFile(m_curFile, false);
+        m_editArea->closeFile(m_curFile, false);
     }
 }
 
@@ -2454,7 +2456,7 @@ void VMainWindow::shortcutsHelp()
 {
     QString docFile = VUtils::getDocFile(VNote::c_shortcutsDocFile);
     VFile *file = vnote->getOrphanFile(docFile, false, true);
-    editArea->openFile(file, OpenFileMode::Read);
+    m_editArea->openFile(file, OpenFileMode::Read);
 }
 
 void VMainWindow::printNote()
@@ -2549,7 +2551,7 @@ bool VMainWindow::tryOpenInternalFile(const QString &p_filePath)
         VFile *file = vnote->getInternalFile(p_filePath);
 
         if (file) {
-            editArea->openFile(file, OpenFileMode::Read);
+            m_editArea->openFile(file, OpenFileMode::Read);
             return true;
         }
     }
@@ -2572,7 +2574,7 @@ void VMainWindow::openFiles(const QStringList &p_files,
             file = vnote->getOrphanFile(p_files[i], true);
         }
 
-        editArea->openFile(file, p_mode, p_forceMode);
+        m_editArea->openFile(file, p_mode, p_forceMode);
     }
 }
 
@@ -2667,7 +2669,7 @@ void VMainWindow::openStartupPages()
     {
         QVector<VFileSessionInfo> files = g_config->getLastOpenedFiles();
         qDebug() << "open" << files.size() << "last opened files";
-        editArea->openFiles(files);
+        m_editArea->openFiles(files);
         break;
     }
 
@@ -2788,7 +2790,7 @@ bool VMainWindow::closeFileByCaptain(void *p_target, void *p_data)
     VMainWindow *obj = static_cast<VMainWindow *>(p_target);
     obj->closeCurrentFile();
 
-    QWidget *nextFocus = obj->editArea->getCurrentTab();
+    QWidget *nextFocus = obj->m_editArea->getCurrentTab();
     if (nextFocus) {
         nextFocus->setFocus();
     } else {
@@ -2846,6 +2848,15 @@ void VMainWindow::initShortcuts()
         connect(closeNoteShortcut, &QShortcut::activated,
                 this, &VMainWindow::closeCurrentFile);
     }
+
+    keySeq = g_config->getShortcutKeySequence("UniversalEntry");
+    qDebug() << "set UniversalEntry shortcut to" << keySeq;
+    if (!keySeq.isEmpty()) {
+        QShortcut *ueShortcut = new QShortcut(QKeySequence(keySeq), this);
+        ueShortcut->setContext(Qt::WidgetWithChildrenShortcut);
+        connect(ueShortcut, &QShortcut::activated,
+                this, &VMainWindow::activateUniversalEntry);
+    }
 }
 
 void VMainWindow::openFlashPage()
@@ -3091,10 +3102,10 @@ void VMainWindow::toggleEditReadMode()
 
     if (m_curTab->isEditMode()) {
         // Save changes and read.
-        editArea->saveAndReadFile();
+        m_editArea->saveAndReadFile();
     } else {
         // Edit.
-        editArea->editFile();
+        m_editArea->editFile();
     }
 }
 
@@ -3154,3 +3165,34 @@ VNotebook *VMainWindow::getCurrentNotebook() const
 {
     return notebookSelector->currentNotebook();
 }
+
+void VMainWindow::activateUniversalEntry()
+{
+    if (!m_ue) {
+        m_ue = new VUniversalEntry(this);
+        m_ue->hide();
+        m_ue->setWindowFlags(Qt::Popup
+                             | Qt::FramelessWindowHint
+                             | Qt::NoDropShadowWindowHint);
+        connect(m_ue, &VUniversalEntry::exited,
+                this, [this]() {
+                    m_captain->setCaptainModeEnabled(true);
+                });
+    }
+
+    m_captain->setCaptainModeEnabled(false);
+
+    // Move it to the top left corner of edit area.
+    QPoint topLeft = m_editArea->mapToGlobal(QPoint(0, 0));
+    QRect eaRect = m_editArea->editAreaRect();
+    topLeft += eaRect.topLeft();
+
+    // Use global position.
+    m_ue->move(topLeft);
+
+    eaRect.moveTop(0);
+    m_ue->setAvailableRect(eaRect);
+
+    m_ue->show();
+    m_ue->raise();
+}

src/vmainwindow.h

@@ -41,6 +41,7 @@ class VSnippetList;
 class VCart;
 class VSearcher;
 class QPrinter;
+class VUniversalEntry;
 
 enum class PanelViewState
 {
@@ -182,6 +183,9 @@ private slots:
 
     void toggleEditReadMode();
 
+    // Activate Universal Entry.
+    void activateUniversalEntry();
+
 protected:
     void closeEvent(QCloseEvent *event) Q_DECL_OVERRIDE;
 
@@ -231,6 +235,7 @@ private:
     void initEditorLineNumberMenu(QMenu *p_menu);
 
     void initEditorStyleMenu(QMenu *p_emnu);
+
     void updateWindowTitle(const QString &str);
 
     void initVimCmd();
@@ -323,7 +328,7 @@ private:
     // Move directory and file panel in one compact vertical split.
     QSplitter *m_naviSplitter;
 
-    VEditArea *editArea;
+    VEditArea *m_editArea;
 
     QDockWidget *m_toolDock;
 
@@ -433,6 +438,8 @@ private:
 
     QPrinter *m_printer;
 
+    VUniversalEntry *m_ue;
+
     // Interval of the shared memory timer in ms.
     static const int c_sharedMemTimerInterval;
 };
@@ -444,7 +451,7 @@ inline VFileList *VMainWindow::getFileList() const
 
 inline VEditArea *VMainWindow::getEditArea() const
 {
-    return editArea;
+    return m_editArea;
 }
 
 inline VCaptain *VMainWindow::getCaptain() const

src/vuniversalentry.cpp

@@ -0,0 +1,58 @@
+#include "vuniversalentry.h"
+
+#include <QVBoxLayout>
+#include <QLabel>
+#include <QDebug>
+#include <QHideEvent>
+#include <QShowEvent>
+
+#include "vlineedit.h"
+#include "utils/vutils.h"
+
+#define MINIMUM_WIDTH 200
+
+VUniversalEntry::VUniversalEntry(QWidget *p_parent)
+    : QWidget(p_parent),
+      m_availableRect(0, 0, MINIMUM_WIDTH, MINIMUM_WIDTH)
+{
+    m_minimumWidth = MINIMUM_WIDTH * VUtils::calculateScaleFactor() + 0.5;
+    setupUI();
+}
+
+void VUniversalEntry::setupUI()
+{
+    m_cmdEdit = new VLineEdit(this);
+    m_cmdEdit->setPlaceholderText(tr("Welcome to Universal Entry"));
+
+    m_layout = new QVBoxLayout();
+    m_layout->addWidget(m_cmdEdit);
+
+    m_layout->setContentsMargins(0, 0, 0, 0);
+
+	setLayout(m_layout);
+
+    setMinimumWidth(m_minimumWidth);
+}
+
+void VUniversalEntry::hideEvent(QHideEvent *p_event)
+{
+    QWidget::hideEvent(p_event);
+    emit exited();
+}
+
+void VUniversalEntry::showEvent(QShowEvent *p_event)
+{
+    QWidget::showEvent(p_event);
+
+    m_cmdEdit->setFocus();
+    m_cmdEdit->selectAll();
+}
+
+void VUniversalEntry::setAvailableRect(const QRect &p_rect)
+{
+    m_availableRect = p_rect;
+
+    if (m_availableRect.width() < m_minimumWidth) {
+        m_availableRect.setWidth(m_minimumWidth);
+    }
+}

src/vuniversalentry.h

@@ -0,0 +1,43 @@
+#ifndef VUNIVERSALENTRY_H
+#define VUNIVERSALENTRY_H
+
+#include <QWidget>
+#include <QRect>
+
+class VLineEdit;
+class QVBoxLayout;
+class QHideEvent;
+class QShowEvent;
+
+class VUniversalEntry : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit VUniversalEntry(QWidget *p_parent = nullptr);
+
+    // Set the availabel width and height.
+    void setAvailableRect(const QRect &p_rect);
+
+signals:
+    // Exit Universal Entry.
+    void exited();
+
+protected:
+    void hideEvent(QHideEvent *p_event) Q_DECL_OVERRIDE;
+
+    void showEvent(QShowEvent *p_event) Q_DECL_OVERRIDE;
+
+private:
+    void setupUI();
+
+    VLineEdit *m_cmdEdit;
+
+    QVBoxLayout *m_layout;
+
+    // Rect availabel for the UE to use.
+    QRect m_availableRect;
+
+    int m_minimumWidth;
+};
+
+#endif // VUNIVERSALENTRY_H