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298 lines
8.4 KiB
C++
298 lines
8.4 KiB
C++
#ifndef VMDTAB_H
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#define VMDTAB_H
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#include <QString>
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#include <QPointer>
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#include <QSharedPointer>
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#include "vedittab.h"
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#include "vconstants.h"
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#include "vmarkdownconverter.h"
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#include "vconfigmanager.h"
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class VWebView;
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class VDocument;
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class VMdEditor;
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class VInsertSelector;
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class QTimer;
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class QWebEngineDownloadItem;
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class QSplitter;
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class VLivePreviewHelper;
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class VMathJaxInplacePreviewHelper;
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class VMdTab : public VEditTab
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{
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Q_OBJECT
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public:
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VMdTab(VFile *p_file, VEditArea *p_editArea, OpenFileMode p_mode, QWidget *p_parent = 0);
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// Close current tab.
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// @p_forced: if true, discard the changes.
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bool closeFile(bool p_forced) Q_DECL_OVERRIDE;
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// Enter read mode.
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// Will prompt user to save the changes.
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void readFile(bool p_discard = false) Q_DECL_OVERRIDE;
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// Save file.
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bool saveFile() Q_DECL_OVERRIDE;
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bool isModified() const Q_DECL_OVERRIDE;
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// Scroll to @p_header.
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void scrollToHeader(const VHeaderPointer &p_header) Q_DECL_OVERRIDE;
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void insertImage() Q_DECL_OVERRIDE;
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void insertTable() Q_DECL_OVERRIDE;
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void insertLink() Q_DECL_OVERRIDE;
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// Search @p_text in current note.
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void findText(const QString &p_text, uint p_options, bool p_peek,
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bool p_forward = true) Q_DECL_OVERRIDE;
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void findText(const VSearchToken &p_token,
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bool p_forward = true,
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bool p_fromStart = false) Q_DECL_OVERRIDE;
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// Replace @p_text with @p_replaceText in current note.
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void replaceText(const QString &p_text, uint p_options,
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const QString &p_replaceText, bool p_findNext) Q_DECL_OVERRIDE;
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void replaceTextAll(const QString &p_text, uint p_options,
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const QString &p_replaceText) Q_DECL_OVERRIDE;
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void nextMatch(const QString &p_text, uint p_options, bool p_forward) Q_DECL_OVERRIDE;
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QString getSelectedText() const Q_DECL_OVERRIDE;
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void clearSearchedWordHighlight() Q_DECL_OVERRIDE;
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VWebView *getWebViewer() const;
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VMdEditor *getEditor() const;
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MarkdownConverterType getMarkdownConverterType() const;
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void requestUpdateVimStatus() Q_DECL_OVERRIDE;
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// Insert decoration markers or decorate selected text.
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void decorateText(TextDecoration p_decoration, int p_level = -1) Q_DECL_OVERRIDE;
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// Create a filled VEditTabInfo.
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VEditTabInfo fetchTabInfo(VEditTabInfo::InfoType p_type = VEditTabInfo::InfoType::All) const Q_DECL_OVERRIDE;
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// Enable or disable heading sequence.
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void enableHeadingSequence(bool p_enabled);
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bool isHeadingSequenceEnabled() const;
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// Evaluate magic words.
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void evaluateMagicWords() Q_DECL_OVERRIDE;
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void applySnippet(const VSnippet *p_snippet) Q_DECL_OVERRIDE;
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void applySnippet() Q_DECL_OVERRIDE;
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void reload() Q_DECL_OVERRIDE;
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void handleFileOrDirectoryChange(bool p_isFile, UpdateAction p_act) Q_DECL_OVERRIDE;
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// Fetch tab stat info.
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VWordCountInfo fetchWordCountInfo(bool p_editMode) const Q_DECL_OVERRIDE;
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// Toggle live preview in edit mode.
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bool toggleLivePreview();
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bool expandRestorePreviewArea();
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public slots:
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// Enter edit mode.
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void editFile() Q_DECL_OVERRIDE;
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void handleVimCmdCommandCancelled() Q_DECL_OVERRIDE;
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void handleVimCmdCommandFinished(VVim::CommandLineType p_type, const QString &p_cmd) Q_DECL_OVERRIDE;
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void handleVimCmdCommandChanged(VVim::CommandLineType p_type, const QString &p_cmd) Q_DECL_OVERRIDE;
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QString handleVimCmdRequestNextCommand(VVim::CommandLineType p_type, const QString &p_cmd) Q_DECL_OVERRIDE;
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QString handleVimCmdRequestPreviousCommand(VVim::CommandLineType p_type, const QString &p_cmd) Q_DECL_OVERRIDE;
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QString handleVimCmdRequestRegister(int p_key, int p_modifiers) Q_DECL_OVERRIDE;
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protected:
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void writeBackupFile() Q_DECL_OVERRIDE;
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private slots:
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// Update m_outline according to @p_tocHtml for read mode.
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void updateOutlineFromHtml(const QString &p_tocHtml);
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// Update m_outline accroding to @p_headers for edit mode.
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void updateOutlineFromHeaders(const QVector<VTableOfContentItem> &p_headers);
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// Web viewer requests to update current header.
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// @p_anchor is the anchor of the header, like "toc_1".
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void updateCurrentHeader(const QString &p_anchor);
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// Editor requests to update current header.
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void updateCurrentHeader(int p_blockNumber);
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// Handle key press event in Web view.
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void handleWebKeyPressed(int p_key, bool p_ctrl, bool p_shift, bool p_meta);
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// m_editor requests to save changes and enter read mode.
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void saveAndRead();
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// m_editor requests to discard changes and enter read mode.
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void discardAndRead();
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// Restore from m_infoToRestore.
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void restoreFromTabInfo();
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// Handle download request from web page.
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void handleDownloadRequested(QWebEngineDownloadItem *p_item);
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// Handle save page request.
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void handleSavePageRequested();
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// Selection changed in web.
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void handleWebSelectionChanged();
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private:
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enum TabReady { None = 0, ReadMode = 0x1, EditMode = 0x2 };
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enum Mode { InvalidMode = 0, Read, Edit, EditPreview };
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struct WebViewState
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{
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qreal m_zoomFactor;
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};
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// Setup UI.
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void setupUI();
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// Show the file content in read mode.
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void showFileReadMode();
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// Show the file content in edit mode.
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void showFileEditMode();
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// Setup Markdown viewer.
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void setupMarkdownViewer();
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// Setup Markdown editor.
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void setupMarkdownEditor();
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// Use VMarkdownConverter (hoedown) to generate the Web view.
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void viewWebByConverter();
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// Scroll Web view to given header.
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// Return true if scroll was made.
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bool scrollWebViewToHeader(const VHeaderPointer &p_header);
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// @p_force: when true, will scroll even current mouse is under the specified header.
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bool scrollEditorToHeader(const VHeaderPointer &p_header, bool p_force = true);
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// Scroll web/editor to given header.
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// Return true if scroll was made.
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bool scrollToHeaderInternal(const VHeaderPointer &p_header);
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// Search text in Web view.
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void findTextInWebView(const QString &p_text, uint p_options, bool p_peek,
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bool p_forward);
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// Called to zoom in/out content.
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void zoom(bool p_zoomIn, qreal p_step = 0.25) Q_DECL_OVERRIDE;
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// Zoom Web View.
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void zoomWebPage(bool p_zoomIn, qreal p_step = 0.25);
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// Focus the proper child widget.
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void focusChild() Q_DECL_OVERRIDE;
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// Get the markdown editor. If not init yet, init and return it.
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VMdEditor *getEditor();
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// Restore from @p_fino.
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// Return true if succeed.
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bool restoreFromTabInfo(const VEditTabInfo &p_info) Q_DECL_OVERRIDE;
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// Prepare insert selector with snippets.
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VInsertSelector *prepareSnippetSelector(QWidget *p_parent = nullptr);
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// Called once read or edit mode is ready.
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void tabIsReady(TabReady p_mode);
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// Check if there exists backup file from previous session.
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// Return true if we could continue.
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bool checkPreviousBackupFile();
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// updateStatus() with only cursor position information.
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void updateCursorStatus();
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void textToHtmlViaWebView(const QString &p_text, int p_id, int p_timeStamp);
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void htmlToTextViaWebView(const QString &p_html, int p_id, int p_timeStamp);
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bool executeVimCommandInWebView(const QString &p_cmd);
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// Update web view by current content.
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void updateWebView();
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void setCurrentMode(Mode p_mode);
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bool previewExpanded() const;
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VMdEditor *m_editor;
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VWebView *m_webViewer;
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VDocument *m_document;
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MarkdownConverterType m_mdConType;
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// Whether heading sequence is enabled.
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bool m_enableHeadingSequence;
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QSplitter *m_splitter;
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// Timer to write backup file when content has been changed.
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QTimer *m_backupTimer;
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QTimer *m_livePreviewTimer;
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bool m_backupFileChecked;
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// Used to scroll to the header of edit mode in read mode.
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VHeaderPointer m_headerFromEditMode;
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VVim::SearchItem m_lastSearchItem;
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Mode m_mode;
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QSharedPointer<WebViewState> m_readWebViewState;
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QSharedPointer<WebViewState> m_previewWebViewState;
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VLivePreviewHelper *m_livePreviewHelper;
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VMathJaxInplacePreviewHelper *m_mathjaxPreviewHelper;
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int m_documentID;
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};
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inline VMdEditor *VMdTab::getEditor()
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{
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if (m_editor) {
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return m_editor;
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} else {
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setupMarkdownEditor();
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return m_editor;
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}
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}
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inline VMdEditor *VMdTab::getEditor() const
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{
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return m_editor;
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}
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#endif // VMDTAB_H
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