export: add option EmbedCssStyle for HTML

src/dialog/vexportdialog.cpp

@@ -150,9 +150,11 @@ void VExportDialog::setupUI()
     m_basicBox->setLayout(basicLayout);
 
     // Settings box.
+    m_htmlSettings = setupHTMLAdvancedSettings();
     m_pdfSettings = setupPDFAdvancedSettings();
 
     QVBoxLayout *advLayout = new QVBoxLayout();
+    advLayout->addWidget(m_htmlSettings);
     advLayout->addWidget(m_pdfSettings);
 
     m_settingBox->setLayout(advLayout);
@@ -172,20 +174,20 @@ QWidget *VExportDialog::setupPDFAdvancedSettings()
 {
     // Page layout settings.
     m_layoutLabel = new QLabel();
-    m_layoutBtn = new QPushButton(tr("Settings"));
+    QPushButton *layoutBtn = new QPushButton(tr("Settings"));
 
 #ifndef QT_NO_PRINTER
-    connect(m_layoutBtn, &QPushButton::clicked,
+    connect(layoutBtn, &QPushButton::clicked,
             this, &VExportDialog::handleLayoutBtnClicked);
 #else
-    m_layoutBtn->hide();
+    layoutBtn->hide();
 #endif
 
     updatePageLayoutLabel();
 
     QHBoxLayout *layoutLayout = new QHBoxLayout();
     layoutLayout->addWidget(m_layoutLabel);
-    layoutLayout->addWidget(m_layoutBtn);
+    layoutLayout->addWidget(layoutBtn);
     layoutLayout->addStretch();
 
     QFormLayout *advLayout = new QFormLayout();
@@ -199,6 +201,24 @@ QWidget *VExportDialog::setupPDFAdvancedSettings()
     return wid;
 }
 
+QWidget *VExportDialog::setupHTMLAdvancedSettings()
+{
+    // Embed CSS styles.
+    m_embedStyleCB = new QCheckBox(tr("Embed CSS styles"), this);
+    m_embedStyleCB->setToolTip(tr("Embed CSS styles in HTML file"));
+    m_embedStyleCB->setChecked(true);
+
+    QFormLayout *advLayout = new QFormLayout();
+    advLayout->addRow(m_embedStyleCB);
+
+    advLayout->setContentsMargins(0, 0, 0, 0);
+
+    QWidget *wid = new QWidget();
+    wid->setLayout(advLayout);
+
+    return wid;
+}
+
 void VExportDialog::initUIFields(MarkdownConverterType p_renderer)
 {
     // Notes to export.
@@ -282,7 +302,8 @@ void VExportDialog::startExport()
                      m_renderBgCB->currentData().toString(),
                      m_renderStyleCB->currentData().toString(),
                      m_renderCodeBlockStyleCB->currentData().toString(),
-                     &m_pageLayout);
+                     &m_pageLayout,
+                     m_embedStyleCB->isChecked());
 
     s_lastExportFormat = opt.m_format;
 
@@ -709,6 +730,7 @@ void VExportDialog::updatePageLayoutLabel()
 void VExportDialog::handleCurrentFormatChanged(int p_index)
 {
     bool pdfEnabled = false;
+    bool htmlEnabled = false;
 
     if (p_index >= 0) {
         switch (m_formatCB->currentData().toInt()) {
@@ -716,10 +738,15 @@ void VExportDialog::handleCurrentFormatChanged(int p_index)
             pdfEnabled = true;
             break;
 
+        case (int)ExportFormat::HTML:
+            htmlEnabled = true;
+            break;
+
         default:
             break;
         }
     }
 
     m_pdfSettings->setVisible(pdfEnabled);
+    m_htmlSettings->setVisible(htmlEnabled);
 }

src/dialog/vexportdialog.h

@@ -18,6 +18,7 @@ class VDirectory;
 class VFile;
 class VCart;
 class VExporter;
+class QCheckBox;
 
 
 enum class ExportSource
@@ -45,14 +46,16 @@ struct ExportOption
                  const QString &p_renderBg,
                  const QString &p_renderStyle,
                  const QString &p_renderCodeBlockStyle,
-                 QPageLayout *p_layout)
+                 QPageLayout *p_layout,
+                 bool p_embedCssStyle)
         : m_source(p_source),
           m_format(p_format),
           m_renderer(p_renderer),
           m_renderBg(p_renderBg),
           m_renderStyle(p_renderStyle),
           m_renderCodeBlockStyle(p_renderCodeBlockStyle),
-          m_layout(p_layout)
+          m_layout(p_layout),
+          m_embedCssStyle(p_embedCssStyle)
     {
     }
 
@@ -66,6 +69,8 @@ struct ExportOption
     QString m_renderStyle;
     QString m_renderCodeBlockStyle;
     QPageLayout *m_layout;
+
+    bool m_embedCssStyle;
 };
 
 
@@ -96,6 +101,8 @@ private:
 
     QWidget *setupPDFAdvancedSettings();
 
+    QWidget *setupHTMLAdvancedSettings();
+
     void initUIFields(MarkdownConverterType p_renderer);
 
     QString getOutputDirectory() const;
@@ -165,6 +172,8 @@ private:
 
     QWidget *m_pdfSettings;
 
+    QWidget *m_htmlSettings;
+
     QPlainTextEdit *m_consoleEdit;
 
     QDialogButtonBox *m_btnBox;
@@ -175,7 +184,7 @@ private:
 
     QLabel *m_layoutLabel;
 
-    QPushButton *m_layoutBtn;
+    QCheckBox *m_embedStyleCB;
 
     VNotebook *m_notebook;
 

src/resources/export_template.html

@@ -6,6 +6,10 @@
     /* BACKGROUND_PLACE_HOLDER */
     </style>
 
+    <style type="text/css">
+    /* STYLE_PLACE_HOLDER */
+    </style>
+
 <!-- HEAD_PLACE_HOLDER -->
 </head>
 <body>

src/resources/markdown_template.js

@@ -40,9 +40,8 @@ if (typeof VEnableImageCaption == 'undefined') {
     VEnableImageCaption = false;
 }
 
-var headContent = function() {
-    var styles = "<style type=\"text/css\">\n";
-
+var styleContent = function() {
+    var styles = "";
     for (var i = 0; i < document.styleSheets.length; ++i) {
         var styleSheet = document.styleSheets[i];
         if (styleSheet.cssRules) {
@@ -52,12 +51,11 @@ var headContent = function() {
         }
     }
 
-    var styles = styles + "</style>";
     return styles;
-};
+}
 
 var htmlContent = function() {
-    content.htmlContentCB(headContent(), placeholder.innerHTML);
+    content.htmlContentCB("", styleContent(), placeholder.innerHTML);
 };
 
 new QWebChannel(qt.webChannelTransport,

src/vconstants.h

@@ -38,6 +38,7 @@ namespace HtmlHolder
     static const QString c_extraHolder = "<!-- EXTRA_PLACE_HOLDER -->";
     static const QString c_bodyHolder = "<!-- BODY_PLACE_HOLDER -->";
     static const QString c_headHolder = "<!-- HEAD_PLACE_HOLDER -->";
+    static const QString c_styleHolder = "/* STYLE_PLACE_HOLDER */";
 }
 
 // Directory Config file items.

src/vdocument.cpp

@@ -114,7 +114,9 @@ void VDocument::finishLogics()
     emit logicsFinished();
 }
 
-void VDocument::htmlContentCB(const QString &p_head, const QString &p_body)
+void VDocument::htmlContentCB(const QString &p_head,
+                              const QString &p_style,
+                              const QString &p_body)
 {
-    emit htmlContentFinished(p_head, p_body);
+    emit htmlContentFinished(p_head, p_style, p_body);
 }

src/vdocument.h

@@ -70,7 +70,9 @@ public slots:
     // But the page may not finish loading, such as images.
     void finishLogics();
 
-    void htmlContentCB(const QString &p_head, const QString &p_body);
+    void htmlContentCB(const QString &p_head,
+                       const QString &p_style,
+                       const QString &p_body);
 
 signals:
     void textChanged(const QString &text);
@@ -103,6 +105,7 @@ signals:
     void requestHtmlContent();
 
     void htmlContentFinished(const QString &p_headContent,
+                             const QString &p_styleContent,
                              const QString &p_bodyContent);
 
 private:

src/vexporter.cpp

@@ -200,6 +200,7 @@ bool VExporter::exportViaWebView(VFile *p_file,
     case ExportFormat::HTML:
         exportRet = exportToHTML(m_webViewer,
                                  m_webDocument,
+                                 p_opt.m_embedCssStyle,
                                  p_outputFile);
         break;
 
@@ -235,13 +236,16 @@ exit:
 
 bool VExporter::exportToHTML(VWebView *p_webViewer,
                              VDocument *p_webDocument,
+                             bool p_embedCssStyle,
                              const QString &p_filePath)
 {
     Q_UNUSED(p_webViewer);
     int htmlExported = 0;
 
     connect(p_webDocument, &VDocument::htmlContentFinished,
-            this, [&, this](const QString &p_headContent, const QString &p_bodyContent) {
+            this, [&, this](const QString &p_headContent,
+                            const QString &p_styleContent,
+                            const QString &p_bodyContent) {
                 if (p_bodyContent.isEmpty() || this->m_state == ExportState::Cancelled) {
                     htmlExported = -1;
                     return;
@@ -257,7 +261,14 @@ bool VExporter::exportToHTML(VWebView *p_webViewer,
                 }
 
                 QString html(m_exportHtmlTemplate);
-                html.replace(HtmlHolder::c_headHolder, p_headContent);
+                if (!p_styleContent.isEmpty() && p_embedCssStyle) {
+                    html.replace(HtmlHolder::c_styleHolder, p_styleContent);
+                }
+
+                if (!p_headContent.isEmpty()) {
+                    html.replace(HtmlHolder::c_headHolder, p_headContent);
+                }
+
                 html.replace(HtmlHolder::c_bodyHolder, p_bodyContent);
 
                 file.write(html.toUtf8());

src/vexporter.h

@@ -74,6 +74,7 @@ private:
 
     bool exportToHTML(VWebView *p_webViewer,
                       VDocument *p_webDocument,
+                      bool p_embedCssStyle,
                       const QString &p_filePath);
 
     QPageLayout m_pageLayout;