Introdcing source code viewer

lib/commonmarker/src/commonmark.c

@@ -225,7 +225,7 @@ static int S_render_node(cmark_renderer *renderer, cmark_node *node,
       // this ensures that a following indented code block or list will be
       // inteprereted correctly.
       CR();
-      LIT("<!-- end list -->");
+      //LIT("<!-- end list -->");
       BLANKLINE();
     }
     break;

src/CMakeLists.txt

@@ -40,6 +40,7 @@ set(HEADERS
     md-parser.h
     network.h
     render-area.h
+    source-code-dialog.h
 )
 
 set(SOURCES 
@@ -52,6 +53,7 @@ set(SOURCES
   md-parser.cc
   network.cc
   render-area.cc
+  source-code-dialog.cc
   ${HEADERS}
 )
 

src/file.cc

@@ -29,6 +29,11 @@ cmark_node * File::fetch(const std::string& path)
     return parser.parseStream(contents);
 }
 
+std::string const File::getSource(cmark_node *node)
+{
+  return parser.getSource(node);
+}
+
 /**
  * Free AST cmark_node memory, to avoid memory leaks
  */

src/file.h

@@ -17,7 +17,8 @@ public:
 
     cmark_node * read(const std::string& path); /*!< Read file from disk */
     cmark_node * fetch(const std::string& path); /*!< Fetch file from IPFS network */
-    void free(cmark_node *node);
+    std::string const getSource(cmark_node *node);  /*!< Get source code from AST */
+    void free(cmark_node *node); /*!< Free pointer */
 private:
     Parser parser;
     Network network;

src/mainwindow.cc

@@ -15,7 +15,8 @@ MainWindow::MainWindow()
 : m_vbox(Gtk::ORIENTATION_VERTICAL, 0),
   m_hbox_bar(Gtk::ORIENTATION_HORIZONTAL, 0),
   requestPath(""),
-  finalRequestPath("")
+  finalRequestPath(""),
+  currentSourceCode("")
 {
     set_title("DBrowser");
     set_default_size(1000, 800);
@@ -24,14 +25,19 @@ MainWindow::MainWindow()
     // Connect signals
     m_menu.quit.connect(sigc::mem_fun(this, &MainWindow::hide)); /*!< hide main window and therefor closes the app */
     m_menu.reload.connect(sigc::mem_fun(this, &MainWindow::refresh)); /*!< Menu item for reloading the page */
+    m_menu.source_code.connect(sigc::mem_fun(this, &MainWindow::show_source_code_dialog)); /*!< Source code dialog */
+    m_sourceCodeDialog.signal_response().connect(sigc::mem_fun(m_sourceCodeDialog, &SourceCodeDialog::hide_dialog)); /*!< Close source code dialog */
     m_menu.about.connect(sigc::mem_fun(m_about, &About::show_about)); /*!< Display about dialog */
-    m_about.signal_response().connect(sigc::mem_fun(m_about, &About::hide_about)); /*!< Close about dialog */
     m_refreshButton.signal_clicked().connect(sigc::mem_fun(this, &MainWindow::refresh)); /*!< Button for reloading the page */
     m_homeButton.signal_clicked().connect(sigc::mem_fun(this, &MainWindow::go_home)); /*!< Button for home page */
     m_inputField.signal_activate().connect(sigc::mem_fun(this, &MainWindow::input_activate)); /*!< User pressed enter in the input */
 
     m_vbox.pack_start(m_menu, false, false, 0);
 
+
+    m_sourceCodeDialog.setText("Hallo!?");
+    m_sourceCodeDialog.setText("123");
+
     // Horizontal bar
     auto styleBack = m_backButton.get_style_context();
     styleBack->add_class("circular");
@@ -80,6 +86,7 @@ void MainWindow::go_home()
 {
     this->requestPath = "";
     this->finalRequestPath = "";
+    this->currentSourceCode = "";
     this->m_inputField.set_text("");
     m_renderArea.showStartPage();
 }
@@ -92,6 +99,7 @@ void MainWindow::input_activate()
 
 void MainWindow::doRequest(const std::string &path)
 {
+    currentSourceCode = "";
     if (!path.empty()) {
         requestPath = path;
     }
@@ -137,6 +145,7 @@ void MainWindow::fetchFromIPFS()
     try {
         cmark_node *fetchDoc = m_file.fetch(finalRequestPath);
         m_renderArea.processDocument(fetchDoc);
+        currentSourceCode = m_file.getSource(fetchDoc);
         m_file.free(fetchDoc);
     } catch (const std::runtime_error &error) {
         std::cerr << "IPFS Deamon is most likely down: " << error.what() << std::endl;
@@ -155,8 +164,15 @@ void MainWindow::openFromDisk()
     try {
         cmark_node *readDoc = m_file.read(finalRequestPath);
         m_renderArea.processDocument(readDoc);
+        currentSourceCode = m_file.getSource(readDoc);
         m_file.free(readDoc);
     } catch (const std::runtime_error &error) {
         m_renderArea.showMessage("Page not found!", "Detailed error message: " + std::string(error.what()));
     }
 }
+
+void MainWindow::show_source_code_dialog()
+{
+  m_sourceCodeDialog.setText(currentSourceCode);
+  m_sourceCodeDialog.run();
+}

src/mainwindow.h

@@ -11,6 +11,7 @@
 #include "menu.h"
 #include "file.h"
 #include "about.h"
+#include "source-code-dialog.h"
 
 class MainWindow : public Gtk::Window
 {
@@ -25,6 +26,7 @@ protected:
     void on_button_clicked(Glib::ustring data);
     void show_about();
     void hide_about(int response);
+    void show_source_code_dialog();
 
     // Child widgets
     Menu m_menu;
@@ -41,11 +43,13 @@ protected:
     Gtk::Image homeIcon;
     Gtk::ScrolledWindow m_scrolledWindow;
     RenderArea m_renderArea;
+    SourceCodeDialog m_sourceCodeDialog;
     About m_about;
 private:
     File m_file;
     std::string requestPath;
     std::string finalRequestPath;
+    std::string currentSourceCode;
 
     void doRequest(const std::string &path = "");
     void refresh();

src/md-parser.cc

@@ -64,6 +64,17 @@ std::string const Parser::renderHTML(cmark_node *node)
     return output;
 }
 
+/**
+ * Get just the plain text
+ */
+std::string const Parser::getSource(cmark_node *node)
+{
+    char *tmp = cmark_render_commonmark(node, options, 0);
+    std::string output = std::string(tmp);
+    free(tmp);
+    return output;
+}
+
 /**
  * This is a function that will make enabling extensions easier
  */

src/md-parser.h

@@ -15,6 +15,7 @@ public:
     cmark_node * parseFile(const std::string &filePath);
     cmark_node * parseStream(const std::stringstream &stream);
     std::string const renderHTML(cmark_node *node);
+    std::string const getSource(cmark_node *node);
 
 private:
     int options;

src/source-code-dialog.cc

@@ -0,0 +1,32 @@
+#include "source-code-dialog.h"
+#include <gtkmm/textbuffer.h>
+
+SourceCodeDialog::SourceCodeDialog()
+{
+  set_title("View source code");
+  set_default_size(700, 750);
+
+  m_scrolledWindow.add(m_sourceCode);
+  m_scrolledWindow.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
+
+  auto vbox = get_content_area();
+  vbox->pack_start(m_scrolledWindow, true, true, 0);
+
+  show_all_children();
+}
+SourceCodeDialog::~SourceCodeDialog() {}
+
+/**
+ * Set multi-line code source
+ * \param[in] text Source code text
+ */
+void SourceCodeDialog::setText(const std::string& text)
+{
+  Glib::RefPtr<Gtk::TextBuffer> buffer = m_sourceCode.get_buffer();
+  buffer->set_text(text);
+}
+
+void SourceCodeDialog::hide_dialog(__attribute__((unused)) int response)
+{
+    hide();
+}

src/source-code-dialog.h

@@ -0,0 +1,26 @@
+#ifndef SOURCE_CODE_WINDOW_H
+#define SOURCE_CODE_WINDOW_H
+
+#include <gtkmm/dialog.h>
+#include <gtkmm/textview.h>
+#include <gtkmm/scrolledwindow.h>
+#include <string>
+
+class SourceCodeDialog : public Gtk::Dialog
+{
+public:
+    SourceCodeDialog();
+    virtual ~SourceCodeDialog();
+
+    void setText(const std::string& text);
+
+    void hide_dialog(int response);
+protected:
+    // Child widgets
+    Gtk::ScrolledWindow m_scrolledWindow;
+    Gtk::TextView m_sourceCode;
+private:
+
+};
+
+#endif