PDF-form.lyx: add a note

[lyx.git] / src / Buffer.cpp

diff --git a/src/Buffer.cpp b/src/Buffer.cpp
index 10e67273a35aec5fffa6345fc2531e4356f9ec09..7022139daf1b960f1e0ff924ed6fe52efdf3a283 100644 (file)
--- a/src/Buffer.cpp
+++ b/src/Buffer.cpp
@@ -285,6 +285,10 @@ public:
        /// we ran updateBuffer(), i.e., whether citation labels may need
        /// to be updated.
        mutable bool cite_labels_valid_;
+       /// these hold the file name and format, written to by Buffer::preview
+       /// and read from by LFUN_BUFFER_VIEW_CACHE.
+       FileName preview_file_;
+       string preview_format_;
 
        mutable RefCache ref_cache_;
 
@@ -420,6 +424,8 @@ Buffer::Impl::Impl(Buffer * owner, FileName const & file, bool readonly_,
        cite_labels_valid_ = cloned_buffer_->d->cite_labels_valid_;
        unnamed = cloned_buffer_->d->unnamed;
        internal_buffer = cloned_buffer_->d->internal_buffer;
+       preview_file_ = cloned_buffer_->d->preview_file_;
+       preview_format_ = cloned_buffer_->d->preview_format_;
 }
 
 
@@ -2420,6 +2426,10 @@ bool Buffer::getStatus(FuncRequest const & cmd, FuncStatus & flag)
                enable = !isReadonly();
                break;
 
+       case LFUN_BUFFER_VIEW_CACHE:
+               enable = (d->preview_file_).exists();
+               break;
+
        default:
                return false;
        }
@@ -2759,6 +2769,12 @@ void Buffer::dispatch(FuncRequest const & func, DispatchResult & dr)
                break;
        }
 
+       case LFUN_BUFFER_VIEW_CACHE:
+               if (!formats.view(*this, d->preview_file_,
+                                 d->preview_format_))
+                       dr.setMessage(_("Error viewing the output file."));
+               break;
+
        default:
                dispatched = false;
                break;
@@ -4212,13 +4228,18 @@ Buffer::ExportStatus Buffer::preview(string const & format, bool includeall) con
        // (2) export with included children only
        ExportStatus const status = doExport(format, true, false, result_file);
        FileName const previewFile(result_file);
+
+       LATTEST (isClone());
+       d->cloned_buffer_->d->preview_file_ = previewFile;
+       d->cloned_buffer_->d->preview_format_ = format;
+
+       if (status != ExportSuccess)
+               return status;
        if (previewFile.exists()) {
                if (!formats.view(*this, previewFile, format))
                        return PreviewError;
-               else if (status == ExportSuccess)
-                       return PreviewSuccess;
                else
-                       return status;
+                       return PreviewSuccess;
        }
        else {
                // Successful export but no output file?