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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.244 by sf-exg, Mon Oct 13 12:17:48 2014 UTC vs.
Revision 1.256 by sf-exg, Thu Jul 14 05:10:06 2016 UTC

45 45
46 URxvt.perl-ext-common: default,selection-autotransform 46 URxvt.perl-ext-common: default,selection-autotransform
47 47
48Extensions may add additional resources and C<actions>, i.e., methods 48Extensions may add additional resources and C<actions>, i.e., methods
49which can be bound to a key and invoked by the user. An extension can 49which can be bound to a key and invoked by the user. An extension can
50define the resources it support and also default bindings for one or 50define the resources it support using so called META comments,
51more actions it provides using so called META comments, described
52below. Similarly to builtin resources, extension resources can also be 51described below. Similarly to builtin resources, extension resources
53specified on the command line as long options (with C<.> replaced by 52can also be specified on the command line as long options (with C<.>
54C<->), in which case the corresponding extension is loaded 53replaced by C<->), in which case the corresponding extension is loaded
55automatically. For this to work the extension B<must> define META 54automatically. For this to work the extension B<must> define META
56comments for its resources. 55comments for its resources.
57 56
58=head1 API DOCUMENTATION 57=head1 API DOCUMENTATION
59 58
115Additional methods only supported for extension objects are described in 114Additional methods only supported for extension objects are described in
116the C<urxvt::extension> section below. 115the C<urxvt::extension> section below.
117 116
118=head2 META comments 117=head2 META comments
119 118
120rxvt-unicode recognizes special comments in extensions that define 119Rxvt-unicode recognizes special meta comments in extensions that define
121different types of metadata: 120different types of metadata.
121
122Currently, it recognises only one such comment:
122 123
123=over 4 124=over 4
124 125
125=item #:META:RESOURCE:name:type:desc 126=item #:META:RESOURCE:name:type:desc
126 127
127The RESOURCE comment defines a resource used by the extension, where 128The RESOURCE comment defines a resource used by the extension, where
128C<name> is the resource name, C<type> is the resource type, C<boolean> 129C<name> is the resource name, C<type> is the resource type, C<boolean>
129or C<string>, and C<desc> is the resource description. 130or C<string>, and C<desc> is the resource description.
130
131=item #:META:BINDING:sym:action
132
133The BINDING comment defines a default binding for an action provided
134by the extension, where C<sym> is the key combination that triggers
135the action, whose format is defined in the description of the
136B<keysym> resource in the urxvt(1) manpage, and C<action> is the name
137of the action method.
138 131
139=back 132=back
140 133
141=head2 Hooks 134=head2 Hooks
142 135
611 if ($pattern eq $prefix) { 604 if ($pattern eq $prefix) {
612 $name = "$urxvt::RESCLASS.$k$suffix"; 605 $name = "$urxvt::RESCLASS.$k$suffix";
613 606
614 push @{ $term->{perl_ext_3} }, $v->[0]; 607 push @{ $term->{perl_ext_3} }, $v->[0];
615 608
609 return 1 unless $isarg;
610
616 if ($v->[1] eq "boolean") { 611 if ($v->[1] eq "boolean") {
617 $term->put_option_db ($name, $flag ? "true" : "false"); 612 $term->put_option_db ($name, $flag ? "true" : "false");
618 return 1; 613 return 1;
619 } else { 614 } else {
620 $term->put_option_db ($name, $value); 615 $term->put_option_db ($name, $value);
721 @{ delete $TERM->{perl_ext_3} } 716 @{ delete $TERM->{perl_ext_3} }
722 ) { 717 ) {
723 if ($_ eq "default") { 718 if ($_ eq "default") {
724 719
725 $ext_arg{$_} = [] 720 $ext_arg{$_} = []
726 for
727 qw(selection option-popup selection-popup readline), 721 for qw(selection option-popup selection-popup readline searchable-scrollback);
728 map $_->[0], values %{ $TERM->{meta}{binding} };
729 722
730 for ($TERM->_keysym_resources) { 723 for ($TERM->_keysym_resources) {
731 next if /^(?:string|command|builtin|builtin-string|perl)/; 724 next if /^(?:string|command|builtin|builtin-string|perl)/;
732 next unless /^([A-Za-z0-9_\-]+):/; 725 next unless /^([A-Za-z0-9_\-]+):/;
733 726
742 } elsif (/^([^<]+)<(.*)>$/) { 735 } elsif (/^([^<]+)<(.*)>$/) {
743 push @{ $ext_arg{$1} }, $2; 736 push @{ $ext_arg{$1} }, $2;
744 737
745 } else { 738 } else {
746 $ext_arg{$_} ||= []; 739 $ext_arg{$_} ||= [];
747 }
748 }
749
750 # now register default key bindings
751 for my $ext (sort keys %ext_arg) {
752 while (my ($k, $v) = each %{ $TERM->{meta}{ext}{$ext}{binding} }) {
753 $TERM->bind_action ($k, "$v->[0]:$v->[1]");
754 } 740 }
755 } 741 }
756 742
757 for my $ext (sort keys %ext_arg) { 743 for my $ext (sort keys %ext_arg) {
758 my @files = grep -f $_, map "$_/$ext", @dirs; 744 my @files = grep -f $_, map "$_/$ext", @dirs;
981 } 967 }
982 968
983 bless \%disable, "urxvt::extension::on_disable" 969 bless \%disable, "urxvt::extension::on_disable"
984} 970}
985 971
972=item $self->bind_action ($hotkey, $action)
973
986=item $self->x_resource ($pattern) 974=item $self->x_resource ($pattern)
987 975
988=item $self->x_resource_boolean ($pattern) 976=item $self->x_resource_boolean ($pattern)
989 977
990These methods support an additional C<%> prefix when called on an 978These methods support an additional C<%> prefix for C<$action> or
991extension object - see the description of these methods in the 979C<$pattern> when called on an extension object, compared to the
980C<urxvt::term> methods of the same name - see the description of these
992C<urxvt::term> class for details. 981methods in the C<urxvt::term> class for details.
993 982
994=cut 983=cut
984
985sub bind_action {
986 my ($self, $hotkey, $action) = @_;
987 $action =~ s/^%:/$_[0]{_name}:/;
988 $self->{term}->bind_action ($hotkey, $action)
989}
995 990
996sub x_resource { 991sub x_resource {
997 my ($self, $name) = @_; 992 my ($self, $name) = @_;
998 $name =~ s/^%(\.|$)/$_[0]{_name}$1/; 993 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
999 $self->{term}->x_resource ($name) 994 $self->{term}->x_resource ($name)
1140sub scan_extensions { 1135sub scan_extensions {
1141 my ($self) = @_; 1136 my ($self) = @_;
1142 1137
1143 return if exists $self->{meta}; 1138 return if exists $self->{meta};
1144 1139
1145 my @libdirs = perl_libdirs $self; 1140 my @urxvtdirs = perl_libdirs $self;
1141# my @cpandirs = grep -d, map "$_/URxvt/Ext", @INC;
1146 1142
1147# return if $self->{meta_libdirs} eq join "\x00", @libdirs;#d#
1148
1149# $self->{meta_libdirs} = join "\x00", @libdirs;#d#
1150 $self->{meta} = \my %meta; 1143 $self->{meta} = \my %meta;
1151 1144
1152 # first gather extensions 1145 # first gather extensions
1153 for my $dir (reverse @libdirs) { 1146
1147 my $gather = sub {
1148 my ($dir, $core) = @_;
1149
1154 opendir my $fh, $dir 1150 opendir my $fh, $dir
1155 or next; 1151 or return;
1152
1156 for my $ext (readdir $fh) { 1153 for my $ext (readdir $fh) {
1157 $ext !~ /^\./ 1154 $ext !~ /^\./
1155 or next;
1156
1158 and open my $fh, "<", "$dir/$ext" 1157 open my $fh, "<", "$dir/$ext"
1158 or next;
1159
1160 -f $fh
1161 or next;
1162
1163 $ext =~ s/\.uext$// or $core
1159 or next; 1164 or next;
1160 1165
1161 my %ext = (dir => $dir); 1166 my %ext = (dir => $dir);
1162 1167
1163 while (<$fh>) { 1168 while (<$fh>) {
1167 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) { 1172 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
1168 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n"; 1173 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
1169 } else { 1174 } else {
1170 $ext{resource}{$pattern} = [$ext, $type, $desc]; 1175 $ext{resource}{$pattern} = [$ext, $type, $desc];
1171 } 1176 }
1172 } elsif (/^#:META:BINDING:(.*)/) {
1173 my ($keysym, $action) = split /:/, $1;
1174 $ext{binding}{$keysym} = [$ext, $action];
1175 } elsif (/^\s*(?:#|$)/) { 1177 } elsif (/^\s*(?:#|$)/) {
1176 # skip other comments and empty lines 1178 # skip other comments and empty lines
1177 } else { 1179 } else {
1178 last; # stop parsing on first non-empty non-comment line 1180 last; # stop parsing on first non-empty non-comment line
1179 } 1181 }
1180 } 1182 }
1181 1183
1182 $meta{ext}{$ext} = \%ext; 1184 $meta{ext}{$ext} = \%ext;
1183 } 1185 }
1184 } 1186 };
1185 1187
1188# $gather->($_, 0) for @cpandirs;
1189 $gather->($_, 1) for @urxvtdirs;
1190
1186 # and now merge resources and bindings 1191 # and now merge resources
1192
1193 $meta{resource} = \my %resource;
1194
1187 while (my ($k, $v) = each %{ $meta{ext} }) { 1195 while (my ($k, $v) = each %{ $meta{ext} }) {
1188 #TODO: should check for extensions overriding each other 1196 #TODO: should check for extensions overriding each other
1189 %{ $meta{resource} } = (%{ $meta{resource} }, %{ $v->{resource} }); 1197 %resource = (%resource, %{ $v->{resource} });
1190 %{ $meta{binding} } = (%{ $meta{binding} }, %{ $v->{binding} });
1191 } 1198 }
1192} 1199}
1193 1200
1194=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] 1201=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1195 1202
1341 my $res = &x_resource; 1348 my $res = &x_resource;
1342 1349
1343 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0 1350 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
1344} 1351}
1345 1352
1353=item $action = $term->lookup_keysym ($keysym, $state)
1354
1355Returns the action bound to key combination C<($keysym, $state)>,
1356if a binding for it exists, and C<undef> otherwise.
1357
1346=item $success = $term->bind_action ($key, $octets) 1358=item $success = $term->bind_action ($key, $action)
1347 1359
1348Adds a key binding exactly as specified via a C<keysym> resource. See the 1360Adds a key binding exactly as specified via a C<keysym> resource. See the
1349C<keysym> resource in the urxvt(1) manpage. 1361C<keysym> resource in the urxvt(1) manpage.
1362
1363To add default bindings for actions, an extension should call C<<
1364->bind_action >> in its C<init> hook for every such binding. Doing it
1365in the C<init> hook allows users to override or remove the binding
1366again.
1367
1368Example: the C<searchable-scrollback> by default binds itself
1369on C<Meta-s>, using C<< $self->bind_action >>, which calls C<<
1370$term->bind_action >>.
1371
1372 sub init {
1373 my ($self) = @_;
1374
1375 $self->bind_action ("M-s" => "%:start");
1376 }
1350 1377
1351=item $rend = $term->rstyle ([$new_rstyle]) 1378=item $rend = $term->rstyle ([$new_rstyle])
1352 1379
1353Return and optionally change the current rendition. Text that is output by 1380Return and optionally change the current rendition. Text that is output by
1354the terminal application will use this style. 1381the terminal application will use this style.
1512 1539
1513=item $term->scr_add_lines ($string) 1540=item $term->scr_add_lines ($string)
1514 1541
1515Write the given text string to the screen, as if output by the application 1542Write the given text string to the screen, as if output by the application
1516running inside the terminal. It may not contain command sequences (escape 1543running inside the terminal. It may not contain command sequences (escape
1517codes), but is free to use line feeds, carriage returns and tabs. The 1544codes - see C<cmd_parse> for that), but is free to use line feeds,
1518string is a normal text string, not in locale-dependent encoding. 1545carriage returns and tabs. The string is a normal text string, not in
1546locale-dependent encoding.
1519 1547
1520Normally its not a good idea to use this function, as programs might be 1548Normally its not a good idea to use this function, as programs might be
1521confused by changes in cursor position or scrolling. Its useful inside a 1549confused by changes in cursor position or scrolling. Its useful inside a
1522C<on_add_lines> hook, though. 1550C<on_add_lines> hook, though.
1523 1551
1531locale-specific encoding of the terminal and can contain command sequences 1559locale-specific encoding of the terminal and can contain command sequences
1532(escape codes) that will be interpreted. 1560(escape codes) that will be interpreted.
1533 1561
1534=item $term->tt_write ($octets) 1562=item $term->tt_write ($octets)
1535 1563
1536Write the octets given in C<$octets> to the tty (i.e. as program input). To 1564Write the octets given in C<$octets> to the tty (i.e. as user input
1565to the program, see C<cmd_parse> for the opposite direction). To pass
1537pass characters instead of octets, you should convert your strings first 1566characters instead of octets, you should convert your strings first to the
1538to the locale-specific encoding using C<< $term->locale_encode >>. 1567locale-specific encoding using C<< $term->locale_encode >>.
1539 1568
1540=item $term->tt_write_user_input ($octets) 1569=item $term->tt_write_user_input ($octets)
1541 1570
1542Like C<tt_write>, but should be used when writing strings in response to 1571Like C<tt_write>, but should be used when writing strings in response to
1543the user pressing a key, to invoke the additional actions requested by 1572the user pressing a key, to invoke the additional actions requested by
1590 1619
1591=item $term->key_release ($state, $keycode[, $time]) 1620=item $term->key_release ($state, $keycode[, $time])
1592 1621
1593Deliver various fake events to to terminal. 1622Deliver various fake events to to terminal.
1594 1623
1595=item $window_width = $term->width 1624=item $window_width = $term->width ([$new_value])
1596 1625
1597=item $window_height = $term->height 1626=item $window_height = $term->height ([$new_value])
1598 1627
1599=item $font_width = $term->fwidth 1628=item $font_width = $term->fwidth ([$new_value])
1600 1629
1601=item $font_height = $term->fheight 1630=item $font_height = $term->fheight ([$new_value])
1602 1631
1603=item $font_ascent = $term->fbase 1632=item $font_ascent = $term->fbase ([$new_value])
1604 1633
1605=item $terminal_rows = $term->nrow 1634=item $terminal_rows = $term->nrow ([$new_value])
1606 1635
1607=item $terminal_columns = $term->ncol 1636=item $terminal_columns = $term->ncol ([$new_value])
1608 1637
1609=item $has_focus = $term->focus 1638=item $has_focus = $term->focus ([$new_value])
1610 1639
1611=item $is_mapped = $term->mapped 1640=item $is_mapped = $term->mapped ([$new_value])
1612 1641
1613=item $max_scrollback = $term->saveLines 1642=item $max_scrollback = $term->saveLines ([$new_value])
1614 1643
1615=item $nrow_plus_saveLines = $term->total_rows 1644=item $nrow_plus_saveLines = $term->total_rows ([$new_value])
1616 1645
1617=item $topmost_scrollback_row = $term->top_row 1646=item $topmost_scrollback_row = $term->top_row ([$new_value])
1618 1647
1619Return various integers describing terminal characteristics. 1648Return various integers describing terminal characteristics. If an
1649argument is given, changes the value and returns the previous one.
1620 1650
1621=item $x_display = $term->display_id 1651=item $x_display = $term->display_id
1622 1652
1623Return the DISPLAY used by rxvt-unicode. 1653Return the DISPLAY used by rxvt-unicode.
1624 1654
1674Requests a screen refresh. At the next opportunity, rxvt-unicode will 1704Requests a screen refresh. At the next opportunity, rxvt-unicode will
1675compare the on-screen display with its stored representation. If they 1705compare the on-screen display with its stored representation. If they
1676differ, it redraws the differences. 1706differ, it redraws the differences.
1677 1707
1678Used after changing terminal contents to display them. 1708Used after changing terminal contents to display them.
1709
1710=item $term->refresh_check
1711
1712Checks if a refresh has been requested and, if so, schedules one.
1679 1713
1680=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 1714=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
1681 1715
1682Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >> 1716Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
1683is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost 1717is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost

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