[no subject]

[Gavin D. Smith]

branch: old/qt-info
commit 947ec4beb7216859638418982966d3b1b0e5214a
Author: Gavin Smith <gavinsmith0123@gmail.com>
AuthorDate: Sun Apr 7 15:48:02 2019 +0100

    new file infopath.c, to look for a HTML manual
---
 js/docbrowser/docbrowser.pro |  6 +++--
 js/docbrowser/infopath.c     | 60 ++++++++++++++++++++++++++++++++++++++++++++
 js/docbrowser/infopath.h     | 15 +++++++++++
 js/docbrowser/mainwindow.cpp |  4 +++
 4 files changed, 83 insertions(+), 2 deletions(-)

diff --git a/js/docbrowser/docbrowser.pro b/js/docbrowser/docbrowser.pro
index 7de963d501..2558d080df 100644
--- a/js/docbrowser/docbrowser.pro
+++ b/js/docbrowser/docbrowser.pro
@@ -18,11 +18,13 @@ SOURCES += main.cpp\
         mainwindow.cpp \
     websocketclientwrapper.cpp \
     websockettransport.cpp \
-    core.cpp
+    core.cpp \
+    infopath.c
 
 HEADERS  += mainwindow.h \
     websocketclientwrapper.h \
     websockettransport.h \
-    core.h
+    core.h \
+    infopath.h
 
 FORMS    += mainwindow.ui
diff --git a/js/docbrowser/infopath.c b/js/docbrowser/infopath.c
new file mode 100644
index 0000000000..b56bd4c48c
--- /dev/null
+++ b/js/docbrowser/infopath.c
@@ -0,0 +1,60 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <dirent.h>
+#include <sys/stat.h>
+
+#include "infopath.h"
+
+static char *datadir;
+long datadir_len;
+
+/* Return pathname of the main index.html file for a HTML manual.*/
+char *
+locate_manual (const char *manual)
+{
+  fprintf (stderr, "In C now, looking for %s\n", manual);
+
+  if (!datadir)
+    {
+      datadir = getenv ("QTINFO_DATADIR");
+      if (!datadir)
+        return 0;
+      datadir_len = strlen (datadir);
+    }
+
+  /* Check if datadir exists. */
+  DIR *d = opendir (datadir);
+  if (!d)
+    {
+      fprintf (stderr, "Could not open %s\n", datadir);
+      return 0;
+    }
+  closedir (d);
+
+  char *s = malloc (datadir_len + strlen ("/examples/")
+                    + strlen (manual) + 1);
+  sprintf (s, "%s/examples/%s", datadir, manual);
+
+  d = opendir (s);
+  if (!d)
+    {
+      fprintf (stderr, "Could not open %s\n", s);
+      return 0;
+    }
+  closedir (d);
+
+  fprintf (stderr, "success so far\n");
+  free (s);
+  s = malloc (datadir_len + strlen ("/examples/")
+                    + strlen (manual) + strlen ("/index.html") + 1);
+  sprintf (s, "%s/examples/%s/index.html", datadir, manual);
+
+  struct stat dummy;
+  if (stat (s, &dummy) == -1)
+    {
+      fprintf (stderr, "no file %s\n", s);
+      return 0;
+    }
+  return s;
+}
diff --git a/js/docbrowser/infopath.h b/js/docbrowser/infopath.h
new file mode 100644
index 0000000000..cc3ded2746
--- /dev/null
+++ b/js/docbrowser/infopath.h
@@ -0,0 +1,15 @@
+#ifndef INFOPATH_H
+#define INFOPATH_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+char *locate_manual (const char *manual);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // INFOPATH_H
diff --git a/js/docbrowser/mainwindow.cpp b/js/docbrowser/mainwindow.cpp
index a01cc5b074..a10e4d43a8 100644
--- a/js/docbrowser/mainwindow.cpp
+++ b/js/docbrowser/mainwindow.cpp
@@ -3,6 +3,8 @@
 #include "websocketclientwrapper.h"
 #include "websockettransport.h"
 
+#include "infopath.h"
+
 #include <stdlib.h>
 
 #include <QWebEngineView>
@@ -108,4 +110,6 @@ void MainWindow::on_quitButton_clicked()
 void MainWindow::on_loadButton_clicked()
 {
     qDebug() << "load clicked";
+    char *path = locate_manual(qPrintable(ui->manualEdit->text()));
+    qDebug() << "got path" << path;
 }