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#!/usr/bin/perl -w use Data::Dumper; use Gtk; #use Gtk::HTML; use HTML::TreeBuilder; use HTTP::Request::Common; use LWP::UserAgent; use Tie::RefHash; use URI; use strict; init Gtk; #init Gtk::Gdk::Rgb; #init Gtk::HTML; ## ## ## my $TITLE = 'gHTMLTree'; my $false = 0; my $true = 1; my $show_tooltips = $false; ## ## ## my $tooltips; my $filedialog; my $window; my $menubar; my $pane; my $vbox; my $combo; my $tree_scroller; my $tree; my $notebook; my $raw_text_scroller; my $raw_text; my $text_scroller; my $text; my $attrlist_scroller; my $attrlist; my $html_scroller; my $html; my $status; my $status_context; ## ## ## my $p; my $ua = new LWP::UserAgent(); ## ## ## #Gtk::Widget->set_default_colormap(Gtk::Gdk::Rgb->get_cmap()); #Gtk::Widget->set_default_visual(Gtk::Gdk::Rgb->get_visual()); $tooltips = new Gtk::Tooltips(); $window = new Gtk::Window('toplevel'); $window->set_usize(800, 600); $window->set_title($TITLE); $window->signal_connect(delete_event => sub { Gtk->exit(0) }); $vbox = new Gtk::VBox($false, 5); $window->add($vbox); $vbox->show(); { my @menuitems = do { my $dummy = new Gtk::Entry(); $dummy->set_usize(0, 0); $vbox->pack_start($dummy, $false, $false, 0); ( { path => '/_File', type => '<Branch>', }, { path => '/File/_Open Location...', accelerator => '<control>O', callback => sub { $filedialog->show(); }, }, { path => '/File/_Quit', accelerator => '<control>Q', callback => sub { Gtk->exit(0) }, }, { path => '/_Edit', type => '<Branch>', }, { path => '/Edit/_Copy', accelerator => '<control>C', callback => sub { if ($combo->entry->has_focus()) { $combo->entry->copy_clipboard(); } elsif ($text->has_focus()) { $text->copy_clipboard(); } elsif ($raw_text->has_focus()) { $raw_text->copy_clipboard(); } elsif ($tree->selection() && $tree->selection()->has_f +ocus()) { $dummy->set_text(${$tree->selection()->get_user_da +ta()}[0]); $dummy->select_region(0, length($dummy->get_text() +)); $dummy->copy_clipboard(); } }, }, ); }; my $factory; my $accel = new Gtk::AccelGroup(); $factory = new Gtk::ItemFactory('Gtk::MenuBar', '<main>', $accel); $factory->create_items(@menuitems); $window->add_accel_group($accel); $menubar = $factory->get_widget('<main>'); } $vbox->pack_start($menubar, $false, $true, 0); $menubar->show(); $combo = new Gtk::Combo(); $vbox->pack_start($combo, $false, $false, 5); $combo->disable_activate(); $combo->set_use_arrows($true); $combo->set_use_arrows_always($true); $combo->set_case_sensitive($false); $combo->entry->signal_connect(activate => \&change_location); $combo->list->set_selection_mode('single'); $combo->list->signal_connect(selection_changed => sub { $combo->entry->select_region(0, length($combo->entry->get_text)); $combo->grab_focus(); }); $combo->show(); $pane = new Gtk::HPaned(); $vbox->pack_start($pane, $true, $true, 0); $pane->set_handle_size(10); $pane->set_gutter_size(8); $pane->show(); $tree_scroller = new Gtk::ScrolledWindow(); $pane->add1($tree_scroller); $tree_scroller->set_usize(300, 500); $tree_scroller->set_policy('automatic', 'always'); $tree_scroller->show(); $tree = new Gtk::Tree(); $tree_scroller->add_with_viewport( $tree ); $tree->set_selection_mode('browse'); $tree->set_view_mode('line'); $tree->show(); $notebook = new Gtk::Notebook(); $pane->add2($notebook); $notebook->set_tab_pos('bottom'); $notebook->show(); $text_scroller = new Gtk::ScrolledWindow(); $notebook->append_page($text_scroller, new Gtk::Label('HTML Source (Pr +ocessed)')); $text_scroller->set_policy('automatic', 'automatic'); $text_scroller->show(); $text = new Gtk::Text(); $text_scroller->add($text); $text->set_editable($false); $text->realize(); $text->show(); $raw_text_scroller = new Gtk::ScrolledWindow(); $notebook->append_page($raw_text_scroller, new Gtk::Label('HTML Source + (Raw)')); $raw_text_scroller->set_policy('automatic', 'automatic'); $raw_text_scroller->show(); $raw_text = new Gtk::Text(); $raw_text_scroller->add($raw_text); $raw_text->set_editable($false); $raw_text->realize(); $raw_text->show(); $attrlist_scroller = new Gtk::ScrolledWindow(); $notebook->append_page($attrlist_scroller, new Gtk::Label('Node Attrib +utes')); $attrlist_scroller->set_policy('automatic', 'always'); $attrlist_scroller->show(); { my @titles = qw(Name Value); $attrlist = new_with_titles Gtk::CList(@titles); $attrlist_scroller->add($attrlist); $attrlist->set_column_width(0, 75); $attrlist->set_column_auto_resize($_, $true) for (0 .. $#titles); $attrlist->set_selection_mode('single'); $attrlist->show(); } #$html_scroller = new Gtk::ScrolledWindow(); #$notebook->append_page($html_scroller, new Gtk::Label('HTML Viewer')) +; #$html_scroller->set_policy('automatic', 'automatic'); #$html_scroller->show(); #$html = new Gtk::HTML(); #$html_scroller->add($html); #$html->set_editable($false); #$html->realize(); #$html->show(); $status = new Gtk::Statusbar(); $vbox->pack_end($status, $false, $false, 0); $status_context = $status->get_context_id($TITLE); $status->show(); $filedialog = new Gtk::FileSelection(qq{$TITLE: File Browser}); $filedialog->set_modal($true); $filedialog->ok_button->signal_connect(clicked => sub { $filedialog->hide(); change_location($combo->entry, 'file:'.$filedialog->get_filename() +); }); $filedialog->cancel_button->signal_connect(clicked => sub { $filedialo +g->hide() }); unless (fork) { $window->show(); change_location($combo->entry, shift) if @ARGV; main Gtk; exit(0); } Gtk->_exit(0); ## ## ## { my $node_message; my $popup_node; my $attrlist_handle; sub select_node { my ($widget) = @_; my @data= @{$widget->get_user_data}; $status->remove($status_context, $node_message) if defined $no +de_message; $node_message = $status->push($status_context, $data[0]); if (@data >= 2) { $attrlist->clear() if $attrlist->rows(); my @attrs = @{$data[1]}; while (@attrs and @attrs % 2 == 0) { my ($key, $value) = splice(@attrs, 0, 2); $attrlist->append($key, $value); } Gtk->main_iteration while (Gtk->events_pending); } return 1; } } sub change_location { my ($widget, @data) = @_; my $url = @data ? shift(@data) : $widget->get_text; $url = "file:$url" unless $url =~ /^[a-z_0-9-]+:/i; $p->delete() if defined $p; $p = new HTML::TreeBuilder; $p->ignore_unknown($false); $p->store_comments($true); load_url($url); } { my %history; sub load_url { my $url = shift; $window->set_title($TITLE); $combo->entry->set_text($url); $history{$url} = time(); $combo->set_popdown_strings(sort { $history{$b} <=> $history{$a} } keys %history); my $children = $tree->children; $tree->clear_items(0, $children - 1) if $children; $text->set_point(0); $text->forward_delete($text->get_length); $raw_text->set_point(0); $raw_text->forward_delete($raw_text->get_length); Gtk->main_iteration while (Gtk->events_pending); my $fetch_msg = $status->push($status_context, "Fetching: $url + - 0 kB"); Gtk->main_iteration while (Gtk->events_pending); my $req = GET $url; #my $loader = $html->signal_connect('url_requested', get_html_ +resource_loader($url)); #my $handle = $html->begin(); my $handle_chunk = do { my $last_message; my $received = 0; sub { my ($data, $response, $proto) = @_; my $message; if ($data) { $received += length $data; $raw_text->freeze(); $raw_text->set_point($raw_text->get_length()); $raw_text->insert(undef, $raw_text->style->black, +undef, $data); $raw_text->set_position(0); $raw_text->thaw(); Gtk->main_iteration while (Gtk->events_pending); #$html->write($handle, $data); #Gtk->main_iteration while (Gtk->events_pending); $p->parse($data); $message = $status->push($status_context, sprintf("Fetching: %s - %0.1f", $url, $received / 1024).'kB'); } $status->remove($status_context, $last_message) if defined $last_message; $last_message = $message; Gtk->main_iteration while (Gtk->events_pending); }; }; my $res = $ua->request($req, $handle_chunk, 128); #$html->signal_disconnect($loader); # clear out the status bar $handle_chunk->(); if ($res->is_success) { my $build_msg = $status->push($status_context, "Building G +TK tree"); $status->remove($status_context, $fetch_msg); Gtk->main_iteration while (Gtk->events_pending); build_html_tree($p, $tree); $status->remove($status_context, $build_msg); Gtk->main_iteration while (Gtk->events_pending); $p->eof(); #$html->end($handle, 'ok'); $text->set_point($text->get_length()); $text->insert(undef, $text->style->black, undef, $p->as_HT +ML(undef, "\t", {})); $text->set_position(0); Gtk->main_iteration while (Gtk->events_pending); } else { $status->remove($status_context, $fetch_msg); $p->eof(); #$html->end($handle, 'error'); error_dialog(qq{Failed fetching "$url"}); } } } sub get_html_resource_loader { my $url = shift; $url =~ s{(?<=/)[^/]*$}//; my $base_uri = new URI($url); sub { my ($html, $url, $handle) = @_; my $uri = new_abs URI($url, $base_uri); $url = $uri->as_string; my $req = GET $url; my $res = $ua->request($req, sub { local $_ = shift; my ($response, $proto) = @_; Gtk->main_iteration while (Gtk->events_pending); if (defined and length) { $html->write($handle, $_); } else { die("Error fetching $url$/"); } }, 8192); if ($res->is_success) { $html->end($handle, 'ok'); } else { warn "Error fetching $url$/"; $html->end($handle, 'error'); } }; } sub error_dialog { my ($message) = @_; my $dialog = new Gtk::Dialog(); $dialog->set_modal($true); my $label = new Gtk::Label($message); $dialog->vbox->pack_start($label, $true, $true, 40); $label->show(); my $button = new Gtk::Button("Close"); $dialog->action_area->pack_start($button, $true, $true, 0); $button->signal_connect(clicked => sub { $dialog->hide; $dialog = +undef; 1; }); $button->show(); $dialog->show(); } sub build_html_tree { my $node = shift; my $branch = shift; my $path = shift; my $index = shift || 1; my $pos = shift || 0; $path .= '/'; $path .= ref $node ? ($node->tag eq '~comment' ? 'comment()' : $node->tag) : 'text()'; $path .= "[$index]"; my $leaf; my $expand = 0; if (ref $node) { $expand = 1 if $node->tag eq 'a'; my $label = $node->tag; if ($node->tag eq 'link' and defined(my $rel = $node->attr('rel'))) { $label .= " ($rel)"; } if (defined (my $href = $node->attr('href'))) { $label .= ": $href"; } elsif (defined (my $src = $node->attr('src'))) { $label .= ": $src"; } if ($node->tag eq '~comment') { my $text = create_label($node->attr('text')); $label = qq{<!-- $text -->}; } $leaf = new Gtk::TreeItem($label); $leaf->set_user_data([ $path, [ $node->all_external_attr() ] ] +); $branch->append($leaf); if (my @kids = $node->content_list) { my $subtree = new Gtk::Tree(); $leaf->set_subtree($subtree); my %child_types; for my $child (@kids) { my $tag; if (ref $child) { $tag = $child->tag; } else { $tag = ""; if ($node->tag eq 'title') { $window->set_title("$TITLE: $child"); } } $expand = build_html_tree($child, $subtree, $path, ++$child_types{$tag}) || $expand; } $leaf->expand() if $expand; } } else { my $label = create_label($node); $leaf = new Gtk::TreeItem(qq{"$label"}); $leaf->set_user_data([ $path, [] ]); $branch->append($leaf); $expand = 1; } $leaf->show(); $leaf->signal_connect('select', \&select_node); $tooltips->set_tip($leaf, $path, "") if $show_tooltips; return $expand; } sub create_label { my $label = shift || ''; $label =~ s/\s+/ /g; $label = substr($label, 0, 97).'...' unless length($label) < 100; $label; }

In reply to Gtk+ HTML Tree Viewer by mdillon

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