FileManager: Add file properties tab for PDF documents

Userland/Applications/FileManager/CMakeLists.txt

@@ -12,6 +12,7 @@ compile_gml(PropertiesWindowAudioTab.gml PropertiesWindowAudioTabGML.h propertie
 compile_gml(PropertiesWindowFontTab.gml PropertiesWindowFontTabGML.h properties_window_font_tab_gml)
 compile_gml(PropertiesWindowGeneralTab.gml PropertiesWindowGeneralTabGML.h properties_window_general_tab_gml)
 compile_gml(PropertiesWindowImageTab.gml PropertiesWindowImageTabGML.h properties_window_image_tab_gml)
+compile_gml(PropertiesWindowPDFTab.gml PropertiesWindowPDFTabGML.h properties_window_pdf_tab_gml)
 
 set(SOURCES
     DesktopWidget.cpp
@@ -30,7 +31,8 @@ set(GENERATED_SOURCES
     PropertiesWindowFontTabGML.h
     PropertiesWindowGeneralTabGML.h
     PropertiesWindowImageTabGML.h
+    PropertiesWindowPDFTabGML.h
 )
 
 serenity_app(FileManager ICON app-file-manager)
-target_link_libraries(FileManager PRIVATE LibArchive LibAudio LibCore LibFileSystem LibGfx LibGUI LibDesktop LibConfig LibMain LibThreading)
+target_link_libraries(FileManager PRIVATE LibArchive LibAudio LibConfig LibCore LibDesktop LibFileSystem LibGfx LibGUI LibMain LibPDF LibThreading)

Userland/Applications/FileManager/PropertiesWindow.cpp

@@ -16,6 +16,7 @@
 #include <Applications/FileManager/PropertiesWindowFontTabGML.h>
 #include <Applications/FileManager/PropertiesWindowGeneralTabGML.h>
 #include <Applications/FileManager/PropertiesWindowImageTabGML.h>
+#include <Applications/FileManager/PropertiesWindowPDFTabGML.h>
 #include <LibArchive/Zip.h>
 #include <LibAudio/Loader.h>
 #include <LibCore/Directory.h>
@@ -39,6 +40,7 @@
 #include <LibGfx/Font/WOFF/Font.h>
 #include <LibGfx/ICC/Profile.h>
 #include <LibGfx/ICC/Tags.h>
+#include <LibPDF/Document.h>
 #include <grp.h>
 #include <pwd.h>
 #include <stdio.h>
@@ -238,6 +240,9 @@ ErrorOr<void> PropertiesWindow::create_file_type_specific_tabs(GUI::TabWidget& t
     if (mime_type.starts_with("image/"sv))
         return create_image_tab(tab_widget, move(mapped_file), mime_type);
 
+    if (mime_type == "application/pdf"sv)
+        return create_pdf_tab(tab_widget, move(mapped_file));
+
     return {};
 }
 
@@ -451,6 +456,59 @@ ErrorOr<void> PropertiesWindow::create_image_tab(GUI::TabWidget& tab_widget, Non
     return {};
 }
 
+ErrorOr<void> PropertiesWindow::create_pdf_tab(GUI::TabWidget& tab_widget, NonnullRefPtr<Core::MappedFile> mapped_file)
+{
+    auto maybe_document = PDF::Document::create(mapped_file->bytes());
+    if (maybe_document.is_error()) {
+        warnln("Failed to open '{}': {}", m_path, maybe_document.error().message());
+        return {};
+    }
+    auto document = maybe_document.release_value();
+
+    if (auto handler = document->security_handler(); handler && !handler->has_user_password()) {
+        // FIXME: Show a password dialog, once we've switched to lazy-loading
+        auto tab = TRY(tab_widget.try_add_tab<GUI::Label>("PDF"_short_string));
+        tab->set_text(TRY("PDF is password-protected."_string));
+        return {};
+    }
+
+    if (auto maybe_error = document->initialize(); maybe_error.is_error()) {
+        warnln("PDF '{}' seems to be invalid: {}", m_path, maybe_error.error().message());
+        return {};
+    }
+
+    auto tab = TRY(tab_widget.try_add_tab<GUI::Widget>("PDF"_short_string));
+    TRY(tab->load_from_gml(properties_window_pdf_tab_gml));
+
+    tab->find_descendant_of_type_named<GUI::Label>("pdf_version")->set_text(TRY(String::formatted("{}.{}", document->version().major, document->version().minor)));
+    tab->find_descendant_of_type_named<GUI::Label>("pdf_page_count")->set_text(TRY(String::number(document->get_page_count())));
+
+    auto maybe_info_dict = document->info_dict();
+    if (maybe_info_dict.is_error()) {
+        warnln("Failed to read InfoDict from '{}': {}", m_path, maybe_info_dict.error().message());
+    } else if (maybe_info_dict.value().has_value()) {
+        auto get_info_string = [](PDF::PDFErrorOr<Optional<DeprecatedString>> input) -> ErrorOr<String> {
+            if (input.is_error())
+                return String {};
+            if (!input.value().has_value())
+                return String {};
+            return String::from_deprecated_string(input.value().value());
+        };
+
+        auto info_dict = maybe_info_dict.release_value().release_value();
+        tab->find_descendant_of_type_named<GUI::Label>("pdf_title")->set_text(TRY(get_info_string(info_dict.title())));
+        tab->find_descendant_of_type_named<GUI::Label>("pdf_author")->set_text(TRY(get_info_string(info_dict.author())));
+        tab->find_descendant_of_type_named<GUI::Label>("pdf_subject")->set_text(TRY(get_info_string(info_dict.subject())));
+        tab->find_descendant_of_type_named<GUI::Label>("pdf_keywords")->set_text(TRY(get_info_string(info_dict.keywords())));
+        tab->find_descendant_of_type_named<GUI::Label>("pdf_creator")->set_text(TRY(get_info_string(info_dict.creator())));
+        tab->find_descendant_of_type_named<GUI::Label>("pdf_producer")->set_text(TRY(get_info_string(info_dict.producer())));
+        tab->find_descendant_of_type_named<GUI::Label>("pdf_creation_date")->set_text(TRY(get_info_string(info_dict.creation_date())));
+        tab->find_descendant_of_type_named<GUI::Label>("pdf_modification_date")->set_text(TRY(get_info_string(info_dict.modification_date())));
+    }
+
+    return {};
+}
+
 void PropertiesWindow::update()
 {
     m_icon->set_bitmap(GUI::FileIconProvider::icon_for_path(make_full_path(m_name), m_mode).bitmap_for_size(32));

Userland/Applications/FileManager/PropertiesWindow.h

@@ -34,6 +34,7 @@ private:
     ErrorOr<void> create_audio_tab(GUI::TabWidget&, NonnullRefPtr<Core::MappedFile>);
     ErrorOr<void> create_font_tab(GUI::TabWidget&, NonnullRefPtr<Core::MappedFile>, StringView mime_type);
     ErrorOr<void> create_image_tab(GUI::TabWidget&, NonnullRefPtr<Core::MappedFile>, StringView mime_type);
+    ErrorOr<void> create_pdf_tab(GUI::TabWidget&, NonnullRefPtr<Core::MappedFile>);
 
     struct PermissionMasks {
         mode_t read;

Userland/Applications/FileManager/PropertiesWindowPDFTab.gml

@@ -0,0 +1,185 @@
+@GUI::Widget {
+    layout: @GUI::VerticalBoxLayout {
+        margins: [8]
+        spacing: 12
+    }
+
+    @GUI::GroupBox {
+        title: "PDF"
+        preferred_height: "shrink"
+        layout: @GUI::VerticalBoxLayout {
+            margins: [12, 8, 0]
+            spacing: 2
+        }
+
+        @GUI::Widget {
+            layout: @GUI::HorizontalBoxLayout {
+                spacing: 12
+            }
+
+            @GUI::Label {
+                text: "Version:"
+                text_alignment: "TopLeft"
+                fixed_width: 80
+            }
+
+            @GUI::Label {
+                name: "pdf_version"
+                text_alignment: "TopLeft"
+            }
+        }
+
+        @GUI::Widget {
+            layout: @GUI::HorizontalBoxLayout {
+                spacing: 12
+            }
+
+            @GUI::Label {
+                text: "Page count:"
+                text_alignment: "TopLeft"
+                fixed_width: 80
+            }
+
+            @GUI::Label {
+                name: "pdf_page_count"
+                text_alignment: "TopLeft"
+            }
+        }
+
+        @GUI::Widget {
+            layout: @GUI::HorizontalBoxLayout {
+                spacing: 12
+            }
+
+            @GUI::Label {
+                text: "Title:"
+                text_alignment: "TopLeft"
+                fixed_width: 80
+            }
+
+            @GUI::Label {
+                name: "pdf_title"
+                text_alignment: "TopLeft"
+            }
+        }
+
+        @GUI::Widget {
+            layout: @GUI::HorizontalBoxLayout {
+                spacing: 12
+            }
+
+            @GUI::Label {
+                text: "Author:"
+                text_alignment: "TopLeft"
+                fixed_width: 80
+            }
+
+            @GUI::Label {
+                name: "pdf_author"
+                text_alignment: "TopLeft"
+            }
+        }
+
+        @GUI::Widget {
+            layout: @GUI::HorizontalBoxLayout {
+                spacing: 12
+            }
+
+            @GUI::Label {
+                text: "Subject:"
+                text_alignment: "TopLeft"
+                fixed_width: 80
+            }
+
+            @GUI::Label {
+                name: "pdf_subject"
+                text_alignment: "TopLeft"
+            }
+        }
+
+        @GUI::Widget {
+            layout: @GUI::HorizontalBoxLayout {
+                spacing: 12
+            }
+
+            @GUI::Label {
+                text: "Keywords:"
+                text_alignment: "TopLeft"
+                fixed_width: 80
+            }
+
+            @GUI::Label {
+                name: "pdf_keywords"
+                text_alignment: "TopLeft"
+            }
+        }
+
+        @GUI::Widget {
+            layout: @GUI::HorizontalBoxLayout {
+                spacing: 12
+            }
+
+            @GUI::Label {
+                text: "Creator:"
+                text_alignment: "TopLeft"
+                fixed_width: 80
+            }
+
+            @GUI::Label {
+                name: "pdf_creator"
+                text_alignment: "TopLeft"
+            }
+        }
+
+        @GUI::Widget {
+            layout: @GUI::HorizontalBoxLayout {
+                spacing: 12
+            }
+
+            @GUI::Label {
+                text: "Producer:"
+                text_alignment: "TopLeft"
+                fixed_width: 80
+            }
+
+            @GUI::Label {
+                name: "pdf_producer"
+                text_alignment: "TopLeft"
+            }
+        }
+
+        @GUI::Widget {
+            layout: @GUI::HorizontalBoxLayout {
+                spacing: 12
+            }
+
+            @GUI::Label {
+                text: "Created:"
+                text_alignment: "TopLeft"
+                fixed_width: 80
+            }
+
+            @GUI::Label {
+                name: "pdf_creation_date"
+                text_alignment: "TopLeft"
+            }
+        }
+
+        @GUI::Widget {
+            layout: @GUI::HorizontalBoxLayout {
+                spacing: 12
+            }
+
+            @GUI::Label {
+                text: "Modified:"
+                text_alignment: "TopLeft"
+                fixed_width: 80
+            }
+
+            @GUI::Label {
+                name: "pdf_modification_date"
+                text_alignment: "TopLeft"
+            }
+        }
+    }
+}