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=encoding utf8 |
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|
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=head1 NAME |
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|
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@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter |
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|
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=head1 SYNOPSIS |
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|
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# create a file grab_test in $HOME: |
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|
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sub on_sel_grab { |
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warn "you selected ", $_[0]->selection; |
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() |
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} |
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|
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# start a @@RXVT_NAME@@ using it: |
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|
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@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test |
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|
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=head1 DESCRIPTION |
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|
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Everytime a terminal object gets created, extension scripts specified via |
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the C<perl> resource are loaded and associated with it. |
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|
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Scripts are compiled in a 'use strict' and 'use utf8' environment, and |
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thus must be encoded as UTF-8. |
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|
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Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where |
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scripts will be shared (but not enabled) for all terminals. |
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|
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=head1 PREPACKAGED EXTENSIONS |
32 |
|
33 |
This section describes the extensions delivered with this release. You can |
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find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. |
35 |
|
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You can activate them like this: |
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|
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@@RXVT_NAME@@ -pe <extensionname> |
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|
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Or by adding them to the resource for extensions loaded by default: |
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|
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URxvt.perl-ext-common: default,automove-background,selection-autotransform |
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|
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=over 4 |
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|
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=item selection (enabled by default) |
47 |
|
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(More) intelligent selection. This extension tries to be more intelligent |
49 |
when the user extends selections (double-click and further clicks). Right |
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now, it tries to select words, urls and complete shell-quoted |
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arguments, which is very convenient, too, if your F<ls> supports |
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C<--quoting-style=shell>. |
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|
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A double-click usually selects the word under the cursor, further clicks |
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will enlarge the selection. |
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|
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The selection works by trying to match a number of regexes and displaying |
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them in increasing order of length. You can add your own regexes by |
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specifying resources of the form: |
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|
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URxvt.selection.pattern-0: perl-regex |
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URxvt.selection.pattern-1: perl-regex |
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... |
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|
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The index number (0, 1...) must not have any holes, and each regex must |
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contain at least one pair of capturing parentheses, which will be used for |
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the match. For example, the followign adds a regex that matches everything |
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between two vertical bars: |
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|
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URxvt.selection.pattern-0: \\|([^|]+)\\| |
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|
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Another example: Programs I use often output "absolute path: " at the |
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beginning of a line when they process multiple files. The following |
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pattern matches the filename (note, there is a single space at the very |
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end): |
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|
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URxvt.selection.pattern-0: ^(/[^:]+):\ |
78 |
|
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You can look at the source of the selection extension to see more |
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interesting uses, such as parsing a line from beginning to end. |
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|
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This extension also offers following bindable keyboard commands: |
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|
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=over 4 |
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|
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=item rot13 |
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|
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Rot-13 the selection when activated. Used via keyboard trigger: |
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|
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URxvt.keysym.C-M-r: perl:selection:rot13 |
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|
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=back |
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|
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=item option-popup (enabled by default) |
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|
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Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at |
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runtime. |
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|
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=item selection-popup (enabled by default) |
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|
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Binds a popup menu to Ctrl-Button3 that lets you convert the selection |
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text into various other formats/action (such as uri unescaping, perl |
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evaluation, web-browser starting etc.), depending on content. |
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|
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Other extensions can extend this popup menu by pushing a code reference |
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onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the |
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popup is displayed. |
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|
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It's sole argument is the popup menu, which can be modified. The selection |
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is in C<$_>, which can be used to decide wether to add something or not. |
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It should either return nothing or a string and a code reference. The |
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string will be used as button text and the code reference will be called |
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when the button gets activated and should transform C<$_>. |
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|
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The following will add an entry C<a to b> that transforms all C<a>s in |
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the selection to C<b>s, but only if the selection currently contains any |
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C<a>s: |
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|
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push @{ $self->{term}{selection_popup_hook} }, sub { |
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/a/ ? ("a to be" => sub { s/a/b/g } |
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: () |
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}; |
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|
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=item searchable-scrollback<hotkey> (enabled by default) |
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|
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Adds regex search functionality to the scrollback buffer, triggered |
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by a hotkey (default: C<M-s>). While in search mode, normal terminal |
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input/output is suspended and a regex is displayed at the bottom of the |
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screen. |
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|
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Inputting characters appends them to the regex and continues incremental |
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search. C<BackSpace> removes a character from the regex, C<Up> and C<Down> |
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search upwards/downwards in the scrollback buffer, C<End> jumps to the |
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bottom. C<Escape> leaves search mode and returns to the point where search |
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was started, while C<Enter> or C<Return> stay at the current position and |
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additionally stores the first match in the current line into the primary |
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selection. |
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|
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=item readline (enabled by default) |
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|
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A support package that tries to make editing with readline easier. At the |
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moment, it reacts to clicking with the left mouse button by trying to |
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move the text cursor to this position. It does so by generating as many |
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cursor-left or cursor-right keypresses as required (the this only works |
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for programs that correctly support wide characters). |
146 |
|
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To avoid too many false positives, this is only done when: |
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|
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=over 4 |
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|
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=item - the tty is in ICANON state. |
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|
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=item - the text cursor is visible. |
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|
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=item - the primary screen is currently being displayed. |
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|
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=item - the mouse is on the same (multi-row-) line as the text cursor. |
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|
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=back |
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|
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The normal selection mechanism isn't disabled, so quick successive clicks |
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might interfere with selection creation in harmless ways. |
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|
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=item selection-autotransform |
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|
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This selection allows you to do automatic transforms on a selection |
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whenever a selection is made. |
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|
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It works by specifying perl snippets (most useful is a single C<s///> |
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operator) that modify C<$_> as resources: |
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|
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URxvt.selection-autotransform.0: transform |
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URxvt.selection-autotransform.1: transform |
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... |
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|
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For example, the following will transform selections of the form |
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C<filename:number>, often seen in compiler messages, into C<vi +$filename |
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$word>: |
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|
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URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ |
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|
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And this example matches the same,but replaces it with vi-commands you can |
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paste directly into your (vi :) editor: |
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|
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URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/ |
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|
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Of course, this can be modified to suit your needs and your editor :) |
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|
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To expand the example above to typical perl error messages ("XXX at |
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FILENAME line YYY."), you need a slightly more elaborate solution: |
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|
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URxvt.selection.pattern-0: ( at .*? line \\d+[,.]) |
193 |
URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/ |
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|
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The first line tells the selection code to treat the unchanging part of |
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every error message as a selection pattern, and the second line transforms |
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the message into vi commands to load the file. |
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|
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=item tabbed |
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|
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This transforms the terminal into a tabbar with additional terminals, that |
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is, it implements what is commonly refered to as "tabbed terminal". The topmost line |
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displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one |
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button per tab. |
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|
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Clicking a button will activate that tab. Pressing B<Shift-Left> and |
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B<Shift-Right> will switch to the tab left or right of the current one, |
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while B<Shift-Down> creates a new tab. |
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|
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=item mark-urls |
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|
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Uses per-line display filtering (C<on_line_update>) to underline urls and |
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make them clickable. When middle-clicked, the program specified in the |
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resource C<urlLauncher> (default C<x-www-browser>) will be started with |
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the URL as first argument. |
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|
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=item automove-background |
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|
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This is basically a one-line extension that dynamically changes the background pixmap offset |
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to the window position, in effect creating the same effect as pseudo transparency with |
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a custom pixmap. No scaling is supported in this mode. Exmaple: |
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|
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@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background |
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|
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=item block-graphics-to-ascii |
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|
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A not very useful example of filtering all text output to the terminal, |
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by replacing all line-drawing characters (U+2500 .. U+259F) by a |
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similar-looking ascii character. |
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|
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=item digital-clock |
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|
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Displays a digital clock using the built-in overlay. |
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|
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=item example-refresh-hooks |
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|
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Displays a very simple digital clock in the upper right corner of the |
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window. Illustrates overwriting the refresh callbacks to create your own |
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overlays or changes. |
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|
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=item selection-pastebin |
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|
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This is a little rarely useful extension that Uploads the selection as |
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textfile to a remote site (or does other things). (The implementation is |
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not currently secure for use in a multiuser environment as it writes to |
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F</tmp> directly.). |
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|
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It listens to the C<selection-pastebin:remote-pastebin> keyboard command, |
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i.e. |
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|
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URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin |
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|
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Pressing this combination runs a command with C<%> replaced by the name of |
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the textfile. This command can be set via a resource: |
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|
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URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/. |
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|
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And the default is likely not useful to anybody but the few people around |
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here :) |
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|
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The name of the textfile is the hex encoded md5 sum of the selection, so |
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the same content should lead to the same filename. |
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|
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After a successful upload the selection will be replaced by the text given |
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in the C<selection-pastebin-url> resource (again, the % is the placeholder |
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for the filename): |
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|
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URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/% |
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|
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=back |
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|
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=head1 API DOCUMENTATION |
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|
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=head2 General API Considerations |
275 |
|
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All objects (such as terminals, time watchers etc.) are typical |
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reference-to-hash objects. The hash can be used to store anything you |
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like. All members starting with an underscore (such as C<_ptr> or |
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C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or |
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modified). |
281 |
|
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When objects are destroyed on the C++ side, the perl object hashes are |
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emptied, so its best to store related objects such as time watchers and |
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the like inside the terminal object so they get destroyed as soon as the |
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terminal is destroyed. |
286 |
|
287 |
Argument names also often indicate the type of a parameter. Here are some |
288 |
hints on what they mean: |
289 |
|
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=over 4 |
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|
292 |
=item $text |
293 |
|
294 |
Rxvt-unicodes special way of encoding text, where one "unicode" character |
295 |
always represents one screen cell. See L<ROW_t> for a discussion of this format. |
296 |
|
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=item $string |
298 |
|
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A perl text string, with an emphasis on I<text>. It can store all unicode |
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characters and is to be distinguished with text encoded in a specific |
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encoding (often locale-specific) and binary data. |
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|
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=item $octets |
304 |
|
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Either binary data or - more common - a text string encoded in a |
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locale-specific way. |
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|
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=back |
309 |
|
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=head2 Extension Objects |
311 |
|
312 |
Very perl extension is a perl class. A separate perl object is created |
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for each terminal and each extension and passed as the first parameter to |
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hooks. So extensions can use their C<$self> object without having to think |
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about other extensions, with the exception of methods and members that |
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begin with an underscore character C<_>: these are reserved for internal |
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use. |
318 |
|
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Although it isn't a C<urxvt::term> object, you can call all methods of the |
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C<urxvt::term> class on this object. |
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|
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It has the following methods and data members: |
323 |
|
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=over 4 |
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|
326 |
=item $urxvt_term = $self->{term} |
327 |
|
328 |
Returns the C<urxvt::term> object associated with this instance of the |
329 |
extension. This member I<must not> be changed in any way. |
330 |
|
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=item $self->enable ($hook_name => $cb, [$hook_name => $cb..]) |
332 |
|
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Dynamically enable the given hooks (named without the C<on_> prefix) for |
334 |
this extension, replacing any previous hook. This is useful when you want |
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to overwrite time-critical hooks only temporarily. |
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|
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=item $self->disable ($hook_name[, $hook_name..]) |
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|
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Dynamically disable the given hooks. |
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|
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=back |
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|
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=head2 Hooks |
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|
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The following subroutines can be declared in extension files, and will be |
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called whenever the relevant event happens. |
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|
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The first argument passed to them is an extension oject as described in |
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the in the C<Extension Objects> section. |
350 |
|
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B<All> of these hooks must return a boolean value. If any of the called |
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hooks returns true, then the event counts as being I<consumed>, and the |
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relevant action might not be carried out by the C++ code. |
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|
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I<< When in doubt, return a false value (preferably C<()>). >> |
356 |
|
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=over 4 |
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|
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=item on_init $term |
360 |
|
361 |
Called after a new terminal object has been initialized, but before |
362 |
windows are created or the command gets run. Most methods are unsafe to |
363 |
call or deliver senseless data, as terminal size and other characteristics |
364 |
have not yet been determined. You can safely query and change resources |
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and options, though. For many purposes the C<on_start> hook is a better |
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place. |
367 |
|
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=item on_start $term |
369 |
|
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Called at the very end of initialisation of a new terminal, just before |
371 |
trying to map (display) the toplevel and returning to the mainloop. |
372 |
|
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=item on_destroy $term |
374 |
|
375 |
Called whenever something tries to destroy terminal, when the terminal is |
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still fully functional (not for long, though). |
377 |
|
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=item on_reset $term |
379 |
|
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Called after the screen is "reset" for any reason, such as resizing or |
381 |
control sequences. Here is where you can react on changes to size-related |
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variables. |
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|
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=item on_child_start $term, $pid |
385 |
|
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Called just after the child process has been C<fork>ed. |
387 |
|
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=item on_child_exit $term, $status |
389 |
|
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Called just after the child process has exited. C<$status> is the status |
391 |
from C<waitpid>. |
392 |
|
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=item on_sel_make $term, $eventtime |
394 |
|
395 |
Called whenever a selection has been made by the user, but before the |
396 |
selection text is copied, so changes to the beginning, end or type of the |
397 |
selection will be honored. |
398 |
|
399 |
Returning a true value aborts selection making by urxvt, in which case you |
400 |
have to make a selection yourself by calling C<< $term->selection_grab >>. |
401 |
|
402 |
=item on_sel_grab $term, $eventtime |
403 |
|
404 |
Called whenever a selection has been copied, but before the selection is |
405 |
requested from the server. The selection text can be queried and changed |
406 |
by calling C<< $term->selection >>. |
407 |
|
408 |
Returning a true value aborts selection grabbing. It will still be hilighted. |
409 |
|
410 |
=item on_sel_extend $term |
411 |
|
412 |
Called whenever the user tries to extend the selection (e.g. with a double |
413 |
click) and is either supposed to return false (normal operation), or |
414 |
should extend the selection itelf and return true to suppress the built-in |
415 |
processing. This can happen multiple times, as long as the callback |
416 |
returns true, it will be called on every further click by the user and is |
417 |
supposed to enlarge the selection more and more, if possible. |
418 |
|
419 |
See the F<selection> example extension. |
420 |
|
421 |
=item on_view_change $term, $offset |
422 |
|
423 |
Called whenever the view offset changes, i..e the user or program |
424 |
scrolls. Offset C<0> means display the normal terminal, positive values |
425 |
show this many lines of scrollback. |
426 |
|
427 |
=item on_scroll_back $term, $lines, $saved |
428 |
|
429 |
Called whenever lines scroll out of the terminal area into the scrollback |
430 |
buffer. C<$lines> is the number of lines scrolled out and may be larger |
431 |
than the scroll back buffer or the terminal. |
432 |
|
433 |
It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, |
434 |
$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total |
435 |
number of lines that will be in the scrollback buffer. |
436 |
|
437 |
=item on_osc_seq $term, $string |
438 |
|
439 |
Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = |
440 |
operating system command) is processed. Cursor position and other state |
441 |
information is up-to-date when this happens. For interoperability, the |
442 |
string should start with the extension name and a colon, to distinguish |
443 |
it from commands for other extensions, and this might be enforced in the |
444 |
future. |
445 |
|
446 |
Be careful not ever to trust (in a security sense) the data you receive, |
447 |
as its source can not easily be controleld (e-mail content, messages from |
448 |
other users on the same system etc.). |
449 |
|
450 |
=item on_add_lines $term, $string |
451 |
|
452 |
Called whenever text is about to be output, with the text as argument. You |
453 |
can filter/change and output the text yourself by returning a true value |
454 |
and calling C<< $term->scr_add_lines >> yourself. Please note that this |
455 |
might be very slow, however, as your hook is called for B<all> text being |
456 |
output. |
457 |
|
458 |
=item on_tt_write $term, $octets |
459 |
|
460 |
Called whenever some data is written to the tty/pty and can be used to |
461 |
suppress or filter tty input. |
462 |
|
463 |
=item on_line_update $term, $row |
464 |
|
465 |
Called whenever a line was updated or changed. Can be used to filter |
466 |
screen output (e.g. underline urls or other useless stuff). Only lines |
467 |
that are being shown will be filtered, and, due to performance reasons, |
468 |
not always immediately. |
469 |
|
470 |
The row number is always the topmost row of the line if the line spans |
471 |
multiple rows. |
472 |
|
473 |
Please note that, if you change the line, then the hook might get called |
474 |
later with the already-modified line (e.g. if unrelated parts change), so |
475 |
you cannot just toggle rendition bits, but only set them. |
476 |
|
477 |
=item on_refresh_begin $term |
478 |
|
479 |
Called just before the screen gets redrawn. Can be used for overlay |
480 |
or similar effects by modify terminal contents in refresh_begin, and |
481 |
restoring them in refresh_end. The built-in overlay and selection display |
482 |
code is run after this hook, and takes precedence. |
483 |
|
484 |
=item on_refresh_end $term |
485 |
|
486 |
Called just after the screen gets redrawn. See C<on_refresh_begin>. |
487 |
|
488 |
=item on_keyboard_command $term, $string |
489 |
|
490 |
Called whenever the user presses a key combination that has a |
491 |
C<perl:string> action bound to it (see description of the B<keysym> |
492 |
resource in the @@RXVT_NAME@@(1) manpage). |
493 |
|
494 |
=item on_x_event $term, $event |
495 |
|
496 |
Called on every X event received on the vt window (and possibly other |
497 |
windows). Should only be used as a last resort. Most event structure |
498 |
members are not passed. |
499 |
|
500 |
=item on_focus_in $term |
501 |
|
502 |
Called whenever the window gets the keyboard focus, before rxvt-unicode |
503 |
does focus in processing. |
504 |
|
505 |
=item on_focus_out $term |
506 |
|
507 |
Called wheneever the window loses keyboard focus, before rxvt-unicode does |
508 |
focus out processing. |
509 |
|
510 |
=item on_configure_notify $term, $event |
511 |
|
512 |
=item on_property_notify $term, $event |
513 |
|
514 |
=item on_key_press $term, $event, $keysym, $octets |
515 |
|
516 |
=item on_key_release $term, $event, $keysym |
517 |
|
518 |
=item on_button_press $term, $event |
519 |
|
520 |
=item on_button_release $term, $event |
521 |
|
522 |
=item on_motion_notify $term, $event |
523 |
|
524 |
=item on_map_notify $term, $event |
525 |
|
526 |
=item on_unmap_notify $term, $event |
527 |
|
528 |
Called whenever the corresponding X event is received for the terminal If |
529 |
the hook returns true, then the even will be ignored by rxvt-unicode. |
530 |
|
531 |
The event is a hash with most values as named by Xlib (see the XEvent |
532 |
manpage), with the additional members C<row> and C<col>, which are the |
533 |
(real, not screen-based) row and column under the mouse cursor. |
534 |
|
535 |
C<on_key_press> additionally receives the string rxvt-unicode would |
536 |
output, if any, in locale-specific encoding. |
537 |
|
538 |
subwindow. |
539 |
|
540 |
=item on_client_message $term, $event |
541 |
|
542 |
=item on_wm_protocols $term, $event |
543 |
|
544 |
=item on_wm_delete_window $term, $event |
545 |
|
546 |
Called when various types of ClientMessage events are received (all with |
547 |
format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW). |
548 |
|
549 |
=back |
550 |
|
551 |
=cut |
552 |
|
553 |
package urxvt; |
554 |
|
555 |
use utf8; |
556 |
use strict; |
557 |
use Carp (); |
558 |
use Scalar::Util (); |
559 |
use List::Util (); |
560 |
|
561 |
our $VERSION = 1; |
562 |
our $TERM; |
563 |
our @TERM_INIT; |
564 |
our @TERM_EXT; |
565 |
our @HOOKNAME; |
566 |
our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; |
567 |
our %OPTION; |
568 |
|
569 |
our $LIBDIR; |
570 |
our $RESNAME; |
571 |
our $RESCLASS; |
572 |
our $RXVTNAME; |
573 |
|
574 |
our $NOCHAR = chr 0xffff; |
575 |
|
576 |
=head2 Variables in the C<urxvt> Package |
577 |
|
578 |
=over 4 |
579 |
|
580 |
=item $urxvt::LIBDIR |
581 |
|
582 |
The rxvt-unicode library directory, where, among other things, the perl |
583 |
modules and scripts are stored. |
584 |
|
585 |
=item $urxvt::RESCLASS, $urxvt::RESCLASS |
586 |
|
587 |
The resource class and name rxvt-unicode uses to look up X resources. |
588 |
|
589 |
=item $urxvt::RXVTNAME |
590 |
|
591 |
The basename of the installed binaries, usually C<urxvt>. |
592 |
|
593 |
=item $urxvt::TERM |
594 |
|
595 |
The current terminal. This variable stores the current C<urxvt::term> |
596 |
object, whenever a callback/hook is executing. |
597 |
|
598 |
=item @urxvt::TERM_INIT |
599 |
|
600 |
All coderefs in this array will be called as methods of the next newly |
601 |
created C<urxvt::term> object (during the C<on_init> phase). The array |
602 |
gets cleared before the codereferences that were in it are being executed, |
603 |
so coderefs can push themselves onto it again if they so desire. |
604 |
|
605 |
This complements to the perl-eval commandline option, but gets executed |
606 |
first. |
607 |
|
608 |
=item @urxvt::TERM_EXT |
609 |
|
610 |
Works similar to C<@TERM_INIT>, but contains perl package/class names, which |
611 |
get registered as normal extensions after calling the hooks in C<@TERM_INIT> |
612 |
but before other extensions. Gets cleared just like C<@TERM_INIT>. |
613 |
|
614 |
=back |
615 |
|
616 |
=head2 Functions in the C<urxvt> Package |
617 |
|
618 |
=over 4 |
619 |
|
620 |
=item urxvt::fatal $errormessage |
621 |
|
622 |
Fatally aborts execution with the given error message. Avoid at all |
623 |
costs! The only time this is acceptable is when the terminal process |
624 |
starts up. |
625 |
|
626 |
=item urxvt::warn $string |
627 |
|
628 |
Calls C<rxvt_warn> with the given string which should not include a |
629 |
newline. The module also overwrites the C<warn> builtin with a function |
630 |
that calls this function. |
631 |
|
632 |
Using this function has the advantage that its output ends up in the |
633 |
correct place, e.g. on stderr of the connecting urxvtc client. |
634 |
|
635 |
Messages have a size limit of 1023 bytes currently. |
636 |
|
637 |
=item $time = urxvt::NOW |
638 |
|
639 |
Returns the "current time" (as per the event loop). |
640 |
|
641 |
=item urxvt::CurrentTime |
642 |
|
643 |
=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, |
644 |
Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, |
645 |
Button4Mask, Button5Mask, AnyModifier |
646 |
|
647 |
=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask, |
648 |
ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask, |
649 |
PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask, |
650 |
Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask, |
651 |
KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask, |
652 |
ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask, |
653 |
FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask |
654 |
|
655 |
=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify, |
656 |
EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose, |
657 |
GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify, |
658 |
UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify, |
659 |
ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify, |
660 |
CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest, |
661 |
SelectionNotify, ColormapNotify, ClientMessage, MappingNotify |
662 |
|
663 |
Various constants for use in X calls and event processing. |
664 |
|
665 |
=back |
666 |
|
667 |
=head2 RENDITION |
668 |
|
669 |
Rendition bitsets contain information about colour, font, font styles and |
670 |
similar information for each screen cell. |
671 |
|
672 |
The following "macros" deal with changes in rendition sets. You should |
673 |
never just create a bitset, you should always modify an existing one, |
674 |
as they contain important information required for correct operation of |
675 |
rxvt-unicode. |
676 |
|
677 |
=over 4 |
678 |
|
679 |
=item $rend = urxvt::DEFAULT_RSTYLE |
680 |
|
681 |
Returns the default rendition, as used when the terminal is starting up or |
682 |
being reset. Useful as a base to start when creating renditions. |
683 |
|
684 |
=item $rend = urxvt::OVERLAY_RSTYLE |
685 |
|
686 |
Return the rendition mask used for overlays by default. |
687 |
|
688 |
=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline |
689 |
|
690 |
Return the bit that enabled bold, italic, blink, reverse-video and |
691 |
underline, respectively. To enable such a style, just logically OR it into |
692 |
the bitset. |
693 |
|
694 |
=item $foreground = urxvt::GET_BASEFG $rend |
695 |
|
696 |
=item $background = urxvt::GET_BASEBG $rend |
697 |
|
698 |
Return the foreground/background colour index, respectively. |
699 |
|
700 |
=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour |
701 |
|
702 |
=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour |
703 |
|
704 |
Replace the foreground/background colour in the rendition mask with the |
705 |
specified one. |
706 |
|
707 |
=item $value = urxvt::GET_CUSTOM $rend |
708 |
|
709 |
Return the "custom" value: Every rendition has 5 bits for use by |
710 |
extensions. They can be set and changed as you like and are initially |
711 |
zero. |
712 |
|
713 |
=item $rend = urxvt::SET_CUSTOM $rend, $new_value |
714 |
|
715 |
Change the custom value. |
716 |
|
717 |
=back |
718 |
|
719 |
=cut |
720 |
|
721 |
BEGIN { |
722 |
# overwrite perl's warn |
723 |
*CORE::GLOBAL::warn = sub { |
724 |
my $msg = join "", @_; |
725 |
$msg .= "\n" |
726 |
unless $msg =~ /\n$/; |
727 |
urxvt::warn ($msg); |
728 |
}; |
729 |
} |
730 |
|
731 |
no warnings 'utf8'; |
732 |
|
733 |
my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; |
734 |
|
735 |
sub verbose { |
736 |
my ($level, $msg) = @_; |
737 |
warn "$msg\n" if $level <= $verbosity; |
738 |
} |
739 |
|
740 |
my %extension_pkg; |
741 |
|
742 |
# load a single script into its own package, once only |
743 |
sub extension_package($) { |
744 |
my ($path) = @_; |
745 |
|
746 |
$extension_pkg{$path} ||= do { |
747 |
$path =~ /([^\/\\]+)$/; |
748 |
my $pkg = $1; |
749 |
$pkg =~ s/[^[:word:]]/_/g; |
750 |
$pkg = "urxvt::ext::$pkg"; |
751 |
|
752 |
verbose 3, "loading extension '$path' into package '$pkg'"; |
753 |
|
754 |
open my $fh, "<:raw", $path |
755 |
or die "$path: $!"; |
756 |
|
757 |
my $source = |
758 |
"package $pkg; use strict; use utf8; no warnings 'utf8';\n" |
759 |
. "#line 1 \"$path\"\n{\n" |
760 |
. (do { local $/; <$fh> }) |
761 |
. "\n};\n1"; |
762 |
|
763 |
eval $source |
764 |
or die "$path: $@"; |
765 |
|
766 |
$pkg |
767 |
} |
768 |
} |
769 |
|
770 |
our $retval; # return value for urxvt |
771 |
|
772 |
# called by the rxvt core |
773 |
sub invoke { |
774 |
local $TERM = shift; |
775 |
my $htype = shift; |
776 |
|
777 |
if ($htype == 0) { # INIT |
778 |
my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); |
779 |
|
780 |
my %ext_arg; |
781 |
|
782 |
{ |
783 |
my @init = @TERM_INIT; |
784 |
@TERM_INIT = (); |
785 |
$_->($TERM) for @init; |
786 |
my @pkg = @TERM_EXT; |
787 |
@TERM_EXT = (); |
788 |
$TERM->register_package ($_) for @pkg; |
789 |
} |
790 |
|
791 |
for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { |
792 |
if ($_ eq "default") { |
793 |
$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline); |
794 |
} elsif (/^-(.*)$/) { |
795 |
delete $ext_arg{$1}; |
796 |
} elsif (/^([^<]+)<(.*)>$/) { |
797 |
push @{ $ext_arg{$1} }, $2; |
798 |
} else { |
799 |
$ext_arg{$_} ||= []; |
800 |
} |
801 |
} |
802 |
|
803 |
while (my ($ext, $argv) = each %ext_arg) { |
804 |
my @files = grep -f $_, map "$_/$ext", @dirs; |
805 |
|
806 |
if (@files) { |
807 |
$TERM->register_package (extension_package $files[0], $argv); |
808 |
} else { |
809 |
warn "perl extension '$ext' not found in perl library search path\n"; |
810 |
} |
811 |
} |
812 |
|
813 |
eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval"); |
814 |
warn $@ if $@; |
815 |
} |
816 |
|
817 |
$retval = undef; |
818 |
|
819 |
if (my $cb = $TERM->{_hook}[$htype]) { |
820 |
verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" |
821 |
if $verbosity >= 10; |
822 |
|
823 |
keys %$cb; |
824 |
|
825 |
while (my ($pkg, $cb) = each %$cb) { |
826 |
my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }; |
827 |
$retval ||= $retval_; |
828 |
|
829 |
if ($@) { |
830 |
$TERM->ungrab; # better to lose the grab than the session |
831 |
warn $@; |
832 |
} |
833 |
} |
834 |
|
835 |
verbose 11, "$HOOKNAME[$htype] returning <$retval>" |
836 |
if $verbosity >= 11; |
837 |
} |
838 |
|
839 |
if ($htype == 1) { # DESTROY |
840 |
# clear package objects |
841 |
%$_ = () for values %{ $TERM->{_pkg} }; |
842 |
|
843 |
# clear package |
844 |
%$TERM = (); |
845 |
} |
846 |
|
847 |
$retval |
848 |
} |
849 |
|
850 |
# urxvt::term::extension |
851 |
|
852 |
package urxvt::term::extension; |
853 |
|
854 |
sub enable { |
855 |
my ($self, %hook) = @_; |
856 |
my $pkg = $self->{_pkg}; |
857 |
|
858 |
while (my ($name, $cb) = each %hook) { |
859 |
my $htype = $HOOKTYPE{uc $name}; |
860 |
defined $htype |
861 |
or Carp::croak "unsupported hook type '$name'"; |
862 |
|
863 |
$self->set_should_invoke ($htype, +1) |
864 |
unless exists $self->{term}{_hook}[$htype]{$pkg}; |
865 |
|
866 |
$self->{term}{_hook}[$htype]{$pkg} = $cb; |
867 |
} |
868 |
} |
869 |
|
870 |
sub disable { |
871 |
my ($self, @hook) = @_; |
872 |
my $pkg = $self->{_pkg}; |
873 |
|
874 |
for my $name (@hook) { |
875 |
my $htype = $HOOKTYPE{uc $name}; |
876 |
defined $htype |
877 |
or Carp::croak "unsupported hook type '$name'"; |
878 |
|
879 |
$self->set_should_invoke ($htype, -1) |
880 |
if delete $self->{term}{_hook}[$htype]{$pkg}; |
881 |
} |
882 |
} |
883 |
|
884 |
our $AUTOLOAD; |
885 |
|
886 |
sub AUTOLOAD { |
887 |
$AUTOLOAD =~ /:([^:]+)$/ |
888 |
or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable"; |
889 |
|
890 |
eval qq{ |
891 |
sub $AUTOLOAD { |
892 |
my \$proxy = shift; |
893 |
\$proxy->{term}->$1 (\@_) |
894 |
} |
895 |
1 |
896 |
} or die "FATAL: unable to compile method forwarder: $@"; |
897 |
|
898 |
goto &$AUTOLOAD; |
899 |
} |
900 |
|
901 |
sub DESTROY { |
902 |
# nop |
903 |
} |
904 |
|
905 |
# urxvt::destroy_hook |
906 |
|
907 |
sub urxvt::destroy_hook::DESTROY { |
908 |
${$_[0]}->(); |
909 |
} |
910 |
|
911 |
sub urxvt::destroy_hook(&) { |
912 |
bless \shift, urxvt::destroy_hook:: |
913 |
} |
914 |
|
915 |
package urxvt::anyevent; |
916 |
|
917 |
=head2 The C<urxvt::anyevent> Class |
918 |
|
919 |
The sole purpose of this class is to deliver an interface to the |
920 |
C<AnyEvent> module - any module using it will work inside urxvt without |
921 |
further programming. The only exception is that you cannot wait on |
922 |
condition variables, but non-blocking condvar use is ok. What this means |
923 |
is that you cannot use blocking APIs, but the non-blocking variant should |
924 |
work. |
925 |
|
926 |
=cut |
927 |
|
928 |
our $VERSION = 1; |
929 |
|
930 |
$INC{"urxvt/anyevent.pm"} = 1; # mark us as there |
931 |
push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::]; |
932 |
|
933 |
sub timer { |
934 |
my ($class, %arg) = @_; |
935 |
|
936 |
my $cb = $arg{cb}; |
937 |
|
938 |
urxvt::timer |
939 |
->new |
940 |
->start (urxvt::NOW + $arg{after}) |
941 |
->cb (sub { |
942 |
$_[0]->stop; # need to cancel manually |
943 |
$cb->(); |
944 |
}) |
945 |
} |
946 |
|
947 |
sub io { |
948 |
my ($class, %arg) = @_; |
949 |
|
950 |
my $cb = $arg{cb}; |
951 |
|
952 |
bless [$arg{fh}, urxvt::iow |
953 |
->new |
954 |
->fd (fileno $arg{fh}) |
955 |
->events (($arg{poll} =~ /r/ ? 1 : 0) |
956 |
| ($arg{poll} =~ /w/ ? 2 : 0)) |
957 |
->start |
958 |
->cb (sub { |
959 |
$cb->(($_[1] & 1 ? 'r' : '') |
960 |
. ($_[1] & 2 ? 'w' : '')); |
961 |
})], |
962 |
urxvt::anyevent:: |
963 |
} |
964 |
|
965 |
sub DESTROY { |
966 |
$_[0][1]->stop; |
967 |
} |
968 |
|
969 |
sub condvar { |
970 |
bless \my $flag, urxvt::anyevent::condvar:: |
971 |
} |
972 |
|
973 |
sub urxvt::anyevent::condvar::broadcast { |
974 |
${$_[0]}++; |
975 |
} |
976 |
|
977 |
sub urxvt::anyevent::condvar::wait { |
978 |
unless (${$_[0]}) { |
979 |
Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API"; |
980 |
} |
981 |
} |
982 |
|
983 |
package urxvt::term; |
984 |
|
985 |
=head2 The C<urxvt::term> Class |
986 |
|
987 |
=over 4 |
988 |
|
989 |
=cut |
990 |
|
991 |
# find on_xxx subs in the package and register them |
992 |
# as hooks |
993 |
sub register_package { |
994 |
my ($self, $pkg, $argv) = @_; |
995 |
|
996 |
no strict 'refs'; |
997 |
|
998 |
urxvt::verbose 6, "register package $pkg to $self"; |
999 |
|
1000 |
@{"$pkg\::ISA"} = urxvt::term::extension::; |
1001 |
|
1002 |
my $proxy = bless { |
1003 |
_pkg => $pkg, |
1004 |
argv => $argv, |
1005 |
}, $pkg; |
1006 |
Scalar::Util::weaken ($proxy->{term} = $self); |
1007 |
|
1008 |
$self->{_pkg}{$pkg} = $proxy; |
1009 |
|
1010 |
for my $name (@HOOKNAME) { |
1011 |
if (my $ref = $pkg->can ("on_" . lc $name)) { |
1012 |
$proxy->enable ($name => $ref); |
1013 |
} |
1014 |
} |
1015 |
} |
1016 |
|
1017 |
=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] |
1018 |
|
1019 |
Creates a new terminal, very similar as if you had started it with system |
1020 |
C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like |
1021 |
hash which defines the environment of the new terminal. |
1022 |
|
1023 |
Croaks (and probably outputs an error message) if the new instance |
1024 |
couldn't be created. Returns C<undef> if the new instance didn't |
1025 |
initialise perl, and the terminal object otherwise. The C<init> and |
1026 |
C<start> hooks will be called during this call. |
1027 |
|
1028 |
=cut |
1029 |
|
1030 |
sub new { |
1031 |
my ($class, $env, @args) = @_; |
1032 |
|
1033 |
_new ([ map "$_=$env->{$_}", keys %$env ], @args); |
1034 |
} |
1035 |
|
1036 |
=item $term->destroy |
1037 |
|
1038 |
Destroy the terminal object (close the window, free resources |
1039 |
etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event |
1040 |
watchers (timers, io watchers) are still active. |
1041 |
|
1042 |
=item $term->exec_async ($cmd[, @args]) |
1043 |
|
1044 |
Works like the combination of the C<fork>/C<exec> builtins, which executes |
1045 |
("starts") programs in the background. This function takes care of setting |
1046 |
the user environment before exec'ing the command (e.g. C<PATH>) and should |
1047 |
be preferred over explicit calls to C<exec> or C<system>. |
1048 |
|
1049 |
Returns the pid of the subprocess or C<undef> on error. |
1050 |
|
1051 |
=cut |
1052 |
|
1053 |
sub exec_async { |
1054 |
my $self = shift; |
1055 |
|
1056 |
my $pid = fork; |
1057 |
|
1058 |
return $pid |
1059 |
if !defined $pid or $pid; |
1060 |
|
1061 |
%ENV = %{ $self->env }; |
1062 |
|
1063 |
exec @_; |
1064 |
urxvt::_exit 255; |
1065 |
} |
1066 |
|
1067 |
=item $isset = $term->option ($optval[, $set]) |
1068 |
|
1069 |
Returns true if the option specified by C<$optval> is enabled, and |
1070 |
optionally change it. All option values are stored by name in the hash |
1071 |
C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. |
1072 |
|
1073 |
Here is a a likely non-exhaustive list of option names, please see the |
1074 |
source file F</src/optinc.h> to see the actual list: |
1075 |
|
1076 |
borderLess console cursorBlink cursorUnderline hold iconic insecure |
1077 |
intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage |
1078 |
override-redirect pastableTabs pointerBlank reverseVideo scrollBar |
1079 |
scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput |
1080 |
scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs |
1081 |
transparent tripleclickwords utmpInhibit visualBell |
1082 |
|
1083 |
=item $value = $term->resource ($name[, $newval]) |
1084 |
|
1085 |
Returns the current resource value associated with a given name and |
1086 |
optionally sets a new value. Setting values is most useful in the C<init> |
1087 |
hook. Unset resources are returned and accepted as C<undef>. |
1088 |
|
1089 |
The new value must be properly encoded to a suitable character encoding |
1090 |
before passing it to this method. Similarly, the returned value may need |
1091 |
to be converted from the used encoding to text. |
1092 |
|
1093 |
Resource names are as defined in F<src/rsinc.h>. Colours can be specified |
1094 |
as resource names of the form C<< color+<index> >>, e.g. C<color+5>. (will |
1095 |
likely change). |
1096 |
|
1097 |
Please note that resource strings will currently only be freed when the |
1098 |
terminal is destroyed, so changing options frequently will eat memory. |
1099 |
|
1100 |
Here is a a likely non-exhaustive list of resource names, not all of which |
1101 |
are supported in every build, please see the source file F</src/rsinc.h> |
1102 |
to see the actual list: |
1103 |
|
1104 |
answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont |
1105 |
borderLess color cursorBlink cursorUnderline cutchars delete_key |
1106 |
display_name embed ext_bwidth fade font geometry hold iconName |
1107 |
imFont imLocale inputMethod insecure int_bwidth intensityStyles |
1108 |
italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier |
1109 |
mouseWheelScrollPage name override_redirect pastableTabs path perl_eval |
1110 |
perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay |
1111 |
preeditType print_pipe pty_fd reverseVideo saveLines scrollBar |
1112 |
scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness |
1113 |
scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle |
1114 |
secondaryScreen secondaryScroll selectstyle shade term_name title |
1115 |
transient_for transparent transparent_all tripleclickwords utmpInhibit |
1116 |
visualBell |
1117 |
|
1118 |
=cut |
1119 |
|
1120 |
sub resource($$;$) { |
1121 |
my ($self, $name) = (shift, shift); |
1122 |
unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); |
1123 |
&urxvt::term::_resource |
1124 |
} |
1125 |
|
1126 |
=item $value = $term->x_resource ($pattern) |
1127 |
|
1128 |
Returns the X-Resource for the given pattern, excluding the program or |
1129 |
class name, i.e. C<< $term->x_resource ("boldFont") >> should return the |
1130 |
same value as used by this instance of rxvt-unicode. Returns C<undef> if no |
1131 |
resource with that pattern exists. |
1132 |
|
1133 |
This method should only be called during the C<on_start> hook, as there is |
1134 |
only one resource database per display, and later invocations might return |
1135 |
the wrong resources. |
1136 |
|
1137 |
=item $success = $term->parse_keysym ($keysym_spec, $command_string) |
1138 |
|
1139 |
Adds a keymap translation exactly as specified via a resource. See the |
1140 |
C<keysym> resource in the @@RXVT_NAME@@(1) manpage. |
1141 |
|
1142 |
=item $rend = $term->rstyle ([$new_rstyle]) |
1143 |
|
1144 |
Return and optionally change the current rendition. Text that is output by |
1145 |
the terminal application will use this style. |
1146 |
|
1147 |
=item ($row, $col) = $term->screen_cur ([$row, $col]) |
1148 |
|
1149 |
Return the current coordinates of the text cursor position and optionally |
1150 |
set it (which is usually bad as applications don't expect that). |
1151 |
|
1152 |
=item ($row, $col) = $term->selection_mark ([$row, $col]) |
1153 |
|
1154 |
=item ($row, $col) = $term->selection_beg ([$row, $col]) |
1155 |
|
1156 |
=item ($row, $col) = $term->selection_end ([$row, $col]) |
1157 |
|
1158 |
Return the current values of the selection mark, begin or end positions, |
1159 |
and optionally set them to new values. |
1160 |
|
1161 |
=item $term->selection_make ($eventtime[, $rectangular]) |
1162 |
|
1163 |
Tries to make a selection as set by C<selection_beg> and |
1164 |
C<selection_end>. If C<$rectangular> is true (default: false), a |
1165 |
rectangular selection will be made. This is the prefered function to make |
1166 |
a selection. |
1167 |
|
1168 |
=item $success = $term->selection_grab ($eventtime) |
1169 |
|
1170 |
Try to request the primary selection text from the server (for example, as |
1171 |
set by the next method). No visual feedback will be given. This function |
1172 |
is mostly useful from within C<on_sel_grab> hooks. |
1173 |
|
1174 |
=item $oldtext = $term->selection ([$newtext]) |
1175 |
|
1176 |
Return the current selection text and optionally replace it by C<$newtext>. |
1177 |
|
1178 |
=item $term->overlay_simple ($x, $y, $text) |
1179 |
|
1180 |
Create a simple multi-line overlay box. See the next method for details. |
1181 |
|
1182 |
=cut |
1183 |
|
1184 |
sub overlay_simple { |
1185 |
my ($self, $x, $y, $text) = @_; |
1186 |
|
1187 |
my @lines = split /\n/, $text; |
1188 |
|
1189 |
my $w = List::Util::max map $self->strwidth ($_), @lines; |
1190 |
|
1191 |
my $overlay = $self->overlay ($x, $y, $w, scalar @lines); |
1192 |
$overlay->set (0, $_, $lines[$_]) for 0.. $#lines; |
1193 |
|
1194 |
$overlay |
1195 |
} |
1196 |
|
1197 |
=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) |
1198 |
|
1199 |
Create a new (empty) overlay at the given position with the given |
1200 |
width/height. C<$rstyle> defines the initial rendition style |
1201 |
(default: C<OVERLAY_RSTYLE>). |
1202 |
|
1203 |
If C<$border> is C<2> (default), then a decorative border will be put |
1204 |
around the box. |
1205 |
|
1206 |
If either C<$x> or C<$y> is negative, then this is counted from the |
1207 |
right/bottom side, respectively. |
1208 |
|
1209 |
This method returns an urxvt::overlay object. The overlay will be visible |
1210 |
as long as the perl object is referenced. |
1211 |
|
1212 |
The methods currently supported on C<urxvt::overlay> objects are: |
1213 |
|
1214 |
=over 4 |
1215 |
|
1216 |
=item $overlay->set ($x, $y, $text, $rend) |
1217 |
|
1218 |
Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts |
1219 |
text in rxvt-unicode's special encoding and an array of rendition values |
1220 |
at a specific position inside the overlay. |
1221 |
|
1222 |
=item $overlay->hide |
1223 |
|
1224 |
If visible, hide the overlay, but do not destroy it. |
1225 |
|
1226 |
=item $overlay->show |
1227 |
|
1228 |
If hidden, display the overlay again. |
1229 |
|
1230 |
=back |
1231 |
|
1232 |
=item $popup = $term->popup ($event) |
1233 |
|
1234 |
Creates a new C<urxvt::popup> object that implements a popup menu. The |
1235 |
C<$event> I<must> be the event causing the menu to pop up (a button event, |
1236 |
currently). |
1237 |
|
1238 |
=cut |
1239 |
|
1240 |
sub popup { |
1241 |
my ($self, $event) = @_; |
1242 |
|
1243 |
$self->grab ($event->{time}, 1) |
1244 |
or return; |
1245 |
|
1246 |
my $popup = bless { |
1247 |
term => $self, |
1248 |
event => $event, |
1249 |
}, urxvt::popup::; |
1250 |
|
1251 |
Scalar::Util::weaken $popup->{term}; |
1252 |
|
1253 |
$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy }; |
1254 |
Scalar::Util::weaken $self->{_destroy}{$popup}; |
1255 |
|
1256 |
$popup |
1257 |
} |
1258 |
|
1259 |
=item $cellwidth = $term->strwidth ($string) |
1260 |
|
1261 |
Returns the number of screen-cells this string would need. Correctly |
1262 |
accounts for wide and combining characters. |
1263 |
|
1264 |
=item $octets = $term->locale_encode ($string) |
1265 |
|
1266 |
Convert the given text string into the corresponding locale encoding. |
1267 |
|
1268 |
=item $string = $term->locale_decode ($octets) |
1269 |
|
1270 |
Convert the given locale-encoded octets into a perl string. |
1271 |
|
1272 |
=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle]) |
1273 |
|
1274 |
XORs the rendition values in the given span with the provided value |
1275 |
(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in |
1276 |
refresh hooks to provide effects similar to the selection. |
1277 |
|
1278 |
=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]]) |
1279 |
|
1280 |
Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing |
1281 |
whitespace will additionally be xored with the C<$rstyle2>, which defaults |
1282 |
to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines |
1283 |
it instead. Both styles I<MUST NOT> contain font styles. |
1284 |
|
1285 |
=item $term->scr_bell |
1286 |
|
1287 |
Ring the bell! |
1288 |
|
1289 |
=item $term->scr_add_lines ($string) |
1290 |
|
1291 |
Write the given text string to the screen, as if output by the application |
1292 |
running inside the terminal. It may not contain command sequences (escape |
1293 |
codes), but is free to use line feeds, carriage returns and tabs. The |
1294 |
string is a normal text string, not in locale-dependent encoding. |
1295 |
|
1296 |
Normally its not a good idea to use this function, as programs might be |
1297 |
confused by changes in cursor position or scrolling. Its useful inside a |
1298 |
C<on_add_lines> hook, though. |
1299 |
|
1300 |
=item $term->scr_change_screen ($screen) |
1301 |
|
1302 |
Switch to given screen - 0 primary, 1 secondary. |
1303 |
|
1304 |
=item $term->cmd_parse ($octets) |
1305 |
|
1306 |
Similar to C<scr_add_lines>, but the argument must be in the |
1307 |
locale-specific encoding of the terminal and can contain command sequences |
1308 |
(escape codes) that will be interpreted. |
1309 |
|
1310 |
=item $term->tt_write ($octets) |
1311 |
|
1312 |
Write the octets given in C<$data> to the tty (i.e. as program input). To |
1313 |
pass characters instead of octets, you should convert your strings first |
1314 |
to the locale-specific encoding using C<< $term->locale_encode >>. |
1315 |
|
1316 |
=item $old_events = $term->pty_ev_events ([$new_events]) |
1317 |
|
1318 |
Replaces the event mask of the pty watcher by the given event mask. Can |
1319 |
be used to suppress input and output handling to the pty/tty. See the |
1320 |
description of C<< urxvt::timer->events >>. Make sure to always restore |
1321 |
the previous value. |
1322 |
|
1323 |
=item $fd = $term->pty_fd |
1324 |
|
1325 |
Returns the master file descriptor for the pty in use, or C<-1> if no pty |
1326 |
is used. |
1327 |
|
1328 |
=item $windowid = $term->parent |
1329 |
|
1330 |
Return the window id of the toplevel window. |
1331 |
|
1332 |
=item $windowid = $term->vt |
1333 |
|
1334 |
Return the window id of the terminal window. |
1335 |
|
1336 |
=item $term->vt_emask_add ($x_event_mask) |
1337 |
|
1338 |
Adds the specified events to the vt event mask. Useful e.g. when you want |
1339 |
to receive pointer events all the times: |
1340 |
|
1341 |
$term->vt_emask_add (urxvt::PointerMotionMask); |
1342 |
|
1343 |
=item $window_width = $term->width |
1344 |
|
1345 |
=item $window_height = $term->height |
1346 |
|
1347 |
=item $font_width = $term->fwidth |
1348 |
|
1349 |
=item $font_height = $term->fheight |
1350 |
|
1351 |
=item $font_ascent = $term->fbase |
1352 |
|
1353 |
=item $terminal_rows = $term->nrow |
1354 |
|
1355 |
=item $terminal_columns = $term->ncol |
1356 |
|
1357 |
=item $has_focus = $term->focus |
1358 |
|
1359 |
=item $is_mapped = $term->mapped |
1360 |
|
1361 |
=item $max_scrollback = $term->saveLines |
1362 |
|
1363 |
=item $nrow_plus_saveLines = $term->total_rows |
1364 |
|
1365 |
=item $topmost_scrollback_row = $term->top_row |
1366 |
|
1367 |
Return various integers describing terminal characteristics. |
1368 |
|
1369 |
=item $x_display = $term->display_id |
1370 |
|
1371 |
Return the DISPLAY used by rxvt-unicode. |
1372 |
|
1373 |
=item $lc_ctype = $term->locale |
1374 |
|
1375 |
Returns the LC_CTYPE category string used by this rxvt-unicode. |
1376 |
|
1377 |
=item $env = $term->env |
1378 |
|
1379 |
Returns a copy of the environment in effect for the terminal as a hashref |
1380 |
similar to C<\%ENV>. |
1381 |
|
1382 |
=cut |
1383 |
|
1384 |
sub env { |
1385 |
if (my $env = $_[0]->_env) { |
1386 |
+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env } |
1387 |
} else { |
1388 |
+{ %ENV } |
1389 |
} |
1390 |
} |
1391 |
|
1392 |
=item $modifiermask = $term->ModLevel3Mask |
1393 |
|
1394 |
=item $modifiermask = $term->ModMetaMask |
1395 |
|
1396 |
=item $modifiermask = $term->ModNumLockMask |
1397 |
|
1398 |
Return the modifier masks corresponding to the "ISO Level 3 Shift" (often |
1399 |
AltGr), the meta key (often Alt) and the num lock key, if applicable. |
1400 |
|
1401 |
=item $screen = $term->current_screen |
1402 |
|
1403 |
Returns the currently displayed screen (0 primary, 1 secondary). |
1404 |
|
1405 |
=item $cursor_is_hidden = $term->hidden_cursor |
1406 |
|
1407 |
Returns wether the cursor is currently hidden or not. |
1408 |
|
1409 |
=item $view_start = $term->view_start ([$newvalue]) |
1410 |
|
1411 |
Returns the row number of the topmost displayed line. Maximum value is |
1412 |
C<0>, which displays the normal terminal contents. Lower values scroll |
1413 |
this many lines into the scrollback buffer. |
1414 |
|
1415 |
=item $term->want_refresh |
1416 |
|
1417 |
Requests a screen refresh. At the next opportunity, rxvt-unicode will |
1418 |
compare the on-screen display with its stored representation. If they |
1419 |
differ, it redraws the differences. |
1420 |
|
1421 |
Used after changing terminal contents to display them. |
1422 |
|
1423 |
=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) |
1424 |
|
1425 |
Returns the text of the entire row with number C<$row_number>. Row C<0> |
1426 |
is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost |
1427 |
terminal line. The scrollback buffer starts at line C<-1> and extends to |
1428 |
line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line |
1429 |
is requested. |
1430 |
|
1431 |
If C<$new_text> is specified, it will replace characters in the current |
1432 |
line, starting at column C<$start_col> (default C<0>), which is useful |
1433 |
to replace only parts of a line. The font index in the rendition will |
1434 |
automatically be updated. |
1435 |
|
1436 |
C<$text> is in a special encoding: tabs and wide characters that use more |
1437 |
than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535) |
1438 |
characters. Characters with combining characters and other characters that |
1439 |
do not fit into the normal tetx encoding will be replaced with characters |
1440 |
in the private use area. |
1441 |
|
1442 |
You have to obey this encoding when changing text. The advantage is |
1443 |
that C<substr> and similar functions work on screen cells and not on |
1444 |
characters. |
1445 |
|
1446 |
The methods C<< $term->special_encode >> and C<< $term->special_decode >> |
1447 |
can be used to convert normal strings into this encoding and vice versa. |
1448 |
|
1449 |
=item $rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]]) |
1450 |
|
1451 |
Like C<< $term->ROW_t >>, but returns an arrayref with rendition |
1452 |
bitsets. Rendition bitsets contain information about colour, font, font |
1453 |
styles and similar information. See also C<< $term->ROW_t >>. |
1454 |
|
1455 |
When setting rendition, the font mask will be ignored. |
1456 |
|
1457 |
See the section on RENDITION, above. |
1458 |
|
1459 |
=item $length = $term->ROW_l ($row_number[, $new_length]) |
1460 |
|
1461 |
Returns the number of screen cells that are in use ("the line |
1462 |
length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the |
1463 |
line is joined with the following one. |
1464 |
|
1465 |
=item $bool = $term->is_longer ($row_number) |
1466 |
|
1467 |
Returns true if the row is part of a multiple-row logical "line" (i.e. |
1468 |
joined with the following row), which means all characters are in use |
1469 |
and it is continued on the next row (and possibly a continuation of the |
1470 |
previous row(s)). |
1471 |
|
1472 |
=item $line = $term->line ($row_number) |
1473 |
|
1474 |
Create and return a new C<urxvt::line> object that stores information |
1475 |
about the logical line that row C<$row_number> is part of. It supports the |
1476 |
following methods: |
1477 |
|
1478 |
=over 4 |
1479 |
|
1480 |
=item $text = $line->t ([$new_text]) |
1481 |
|
1482 |
Returns or replaces the full text of the line, similar to C<ROW_t> |
1483 |
|
1484 |
=item $rend = $line->r ([$new_rend]) |
1485 |
|
1486 |
Returns or replaces the full rendition array of the line, similar to C<ROW_r> |
1487 |
|
1488 |
=item $length = $line->l |
1489 |
|
1490 |
Returns the length of the line in cells, similar to C<ROW_l>. |
1491 |
|
1492 |
=item $rownum = $line->beg |
1493 |
|
1494 |
=item $rownum = $line->end |
1495 |
|
1496 |
Return the row number of the first/last row of the line, respectively. |
1497 |
|
1498 |
=item $offset = $line->offset_of ($row, $col) |
1499 |
|
1500 |
Returns the character offset of the given row|col pair within the logical |
1501 |
line. Works for rows outside the line, too, and returns corresponding |
1502 |
offsets outside the string. |
1503 |
|
1504 |
=item ($row, $col) = $line->coord_of ($offset) |
1505 |
|
1506 |
Translates a string offset into terminal coordinates again. |
1507 |
|
1508 |
=back |
1509 |
|
1510 |
=cut |
1511 |
|
1512 |
sub line { |
1513 |
my ($self, $row) = @_; |
1514 |
|
1515 |
my $maxrow = $self->nrow - 1; |
1516 |
|
1517 |
my ($beg, $end) = ($row, $row); |
1518 |
|
1519 |
--$beg while $self->ROW_is_longer ($beg - 1); |
1520 |
++$end while $self->ROW_is_longer ($end) && $end < $maxrow; |
1521 |
|
1522 |
bless { |
1523 |
term => $self, |
1524 |
beg => $beg, |
1525 |
end => $end, |
1526 |
ncol => $self->ncol, |
1527 |
len => ($end - $beg) * $self->ncol + $self->ROW_l ($end), |
1528 |
}, urxvt::line:: |
1529 |
} |
1530 |
|
1531 |
sub urxvt::line::t { |
1532 |
my ($self) = @_; |
1533 |
|
1534 |
if (@_ > 1) |
1535 |
{ |
1536 |
$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) |
1537 |
for $self->{beg} .. $self->{end}; |
1538 |
} |
1539 |
|
1540 |
defined wantarray && |
1541 |
substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), |
1542 |
0, $self->{len} |
1543 |
} |
1544 |
|
1545 |
sub urxvt::line::r { |
1546 |
my ($self) = @_; |
1547 |
|
1548 |
if (@_ > 1) |
1549 |
{ |
1550 |
$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) |
1551 |
for $self->{beg} .. $self->{end}; |
1552 |
} |
1553 |
|
1554 |
if (defined wantarray) { |
1555 |
my $rend = [ |
1556 |
map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} |
1557 |
]; |
1558 |
$#$rend = $self->{len} - 1; |
1559 |
return $rend; |
1560 |
} |
1561 |
|
1562 |
() |
1563 |
} |
1564 |
|
1565 |
sub urxvt::line::beg { $_[0]{beg} } |
1566 |
sub urxvt::line::end { $_[0]{end} } |
1567 |
sub urxvt::line::l { $_[0]{len} } |
1568 |
|
1569 |
sub urxvt::line::offset_of { |
1570 |
my ($self, $row, $col) = @_; |
1571 |
|
1572 |
($row - $self->{beg}) * $self->{ncol} + $col |
1573 |
} |
1574 |
|
1575 |
sub urxvt::line::coord_of { |
1576 |
my ($self, $offset) = @_; |
1577 |
|
1578 |
use integer; |
1579 |
|
1580 |
( |
1581 |
$offset / $self->{ncol} + $self->{beg}, |
1582 |
$offset % $self->{ncol} |
1583 |
) |
1584 |
} |
1585 |
|
1586 |
=item $text = $term->special_encode $string |
1587 |
|
1588 |
Converts a perl string into the special encoding used by rxvt-unicode, |
1589 |
where one character corresponds to one screen cell. See |
1590 |
C<< $term->ROW_t >> for details. |
1591 |
|
1592 |
=item $string = $term->special_decode $text |
1593 |
|
1594 |
Converts rxvt-unicodes text reprsentation into a perl string. See |
1595 |
C<< $term->ROW_t >> for details. |
1596 |
|
1597 |
=item $success = $term->grab_button ($button, $modifiermask) |
1598 |
|
1599 |
Registers a synchronous button grab. See the XGrabButton manpage. |
1600 |
|
1601 |
=item $success = $term->grab ($eventtime[, $sync]) |
1602 |
|
1603 |
Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or |
1604 |
synchronous (C<$sync> is true). Also remembers the grab timestampe. |
1605 |
|
1606 |
=item $term->allow_events_async |
1607 |
|
1608 |
Calls XAllowEvents with AsyncBoth for the most recent grab. |
1609 |
|
1610 |
=item $term->allow_events_sync |
1611 |
|
1612 |
Calls XAllowEvents with SyncBoth for the most recent grab. |
1613 |
|
1614 |
=item $term->allow_events_replay |
1615 |
|
1616 |
Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most |
1617 |
recent grab. |
1618 |
|
1619 |
=item $term->ungrab |
1620 |
|
1621 |
Calls XUngrab for the most recent grab. Is called automatically on |
1622 |
evaluation errors, as it is better to lose the grab in the error case as |
1623 |
the session. |
1624 |
|
1625 |
=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists]) |
1626 |
|
1627 |
=item $atom_name = $term->XGetAtomName ($atom) |
1628 |
|
1629 |
=item @atoms = $term->XListProperties ($window) |
1630 |
|
1631 |
=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property) |
1632 |
|
1633 |
=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets) |
1634 |
|
1635 |
=item $term->XDeleteProperty ($window, $property) |
1636 |
|
1637 |
=item $window = $term->DefaultRootWindow |
1638 |
|
1639 |
=item $term->XReparentWindow ($window, $parent, [$x, $y]) |
1640 |
|
1641 |
=item $term->XMapWindow ($window) |
1642 |
|
1643 |
=item $term->XUnmapWindow ($window) |
1644 |
|
1645 |
=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height) |
1646 |
|
1647 |
=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y) |
1648 |
|
1649 |
=item $term->XChangeInput ($window, $add_events[, $del_events]) |
1650 |
|
1651 |
Various X or X-related functions. The C<$term> object only serves as |
1652 |
the source of the display, otherwise those functions map more-or-less |
1653 |
directory onto the X functions of the same name. |
1654 |
|
1655 |
=back |
1656 |
|
1657 |
=cut |
1658 |
|
1659 |
package urxvt::popup; |
1660 |
|
1661 |
=head2 The C<urxvt::popup> Class |
1662 |
|
1663 |
=over 4 |
1664 |
|
1665 |
=cut |
1666 |
|
1667 |
sub add_item { |
1668 |
my ($self, $item) = @_; |
1669 |
|
1670 |
$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal}; |
1671 |
$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover}; |
1672 |
$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active}; |
1673 |
|
1674 |
$item->{render} ||= sub { $_[0]{text} }; |
1675 |
|
1676 |
push @{ $self->{item} }, $item; |
1677 |
} |
1678 |
|
1679 |
=item $popup->add_title ($title) |
1680 |
|
1681 |
Adds a non-clickable title to the popup. |
1682 |
|
1683 |
=cut |
1684 |
|
1685 |
sub add_title { |
1686 |
my ($self, $title) = @_; |
1687 |
|
1688 |
$self->add_item ({ |
1689 |
rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" }, |
1690 |
text => $title, |
1691 |
activate => sub { }, |
1692 |
}); |
1693 |
} |
1694 |
|
1695 |
=item $popup->add_separator ([$sepchr]) |
1696 |
|
1697 |
Creates a separator, optionally using the character given as C<$sepchr>. |
1698 |
|
1699 |
=cut |
1700 |
|
1701 |
sub add_separator { |
1702 |
my ($self, $sep) = @_; |
1703 |
|
1704 |
$sep ||= "="; |
1705 |
|
1706 |
$self->add_item ({ |
1707 |
rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" }, |
1708 |
text => "", |
1709 |
render => sub { $sep x $self->{term}->ncol }, |
1710 |
activate => sub { }, |
1711 |
}); |
1712 |
} |
1713 |
|
1714 |
=item $popup->add_button ($text, $cb) |
1715 |
|
1716 |
Adds a clickable button to the popup. C<$cb> is called whenever it is |
1717 |
selected. |
1718 |
|
1719 |
=cut |
1720 |
|
1721 |
sub add_button { |
1722 |
my ($self, $text, $cb) = @_; |
1723 |
|
1724 |
$self->add_item ({ type => "button", text => $text, activate => $cb}); |
1725 |
} |
1726 |
|
1727 |
=item $popup->add_toggle ($text, $cb, $initial_value) |
1728 |
|
1729 |
Adds a toggle/checkbox item to the popup. Teh callback gets called |
1730 |
whenever it gets toggled, with a boolean indicating its value as its first |
1731 |
argument. |
1732 |
|
1733 |
=cut |
1734 |
|
1735 |
sub add_toggle { |
1736 |
my ($self, $text, $cb, $value) = @_; |
1737 |
|
1738 |
my $item; $item = { |
1739 |
type => "button", |
1740 |
text => " $text", |
1741 |
value => $value, |
1742 |
render => sub { ($_[0]{value} ? "* " : " ") . $text }, |
1743 |
activate => sub { $cb->($_[1]{value} = !$_[1]{value}); }, |
1744 |
}; |
1745 |
|
1746 |
$self->add_item ($item); |
1747 |
} |
1748 |
|
1749 |
=item $popup->show |
1750 |
|
1751 |
Displays the popup (which is initially hidden). |
1752 |
|
1753 |
=cut |
1754 |
|
1755 |
sub show { |
1756 |
my ($self) = @_; |
1757 |
|
1758 |
local $urxvt::popup::self = $self; |
1759 |
|
1760 |
my $env = $self->{term}->env; |
1761 |
# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. |
1762 |
delete $env->{LC_ALL}; |
1763 |
$env->{LC_CTYPE} = $self->{term}->locale; |
1764 |
|
1765 |
urxvt::term->new ($env, "popup", |
1766 |
"--perl-lib" => "", "--perl-ext-common" => "", |
1767 |
"-pty-fd" => -1, "-sl" => 0, |
1768 |
"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect", |
1769 |
"--transient-for" => $self->{term}->parent, |
1770 |
"-display" => $self->{term}->display_id, |
1771 |
"-pe" => "urxvt-popup") |
1772 |
or die "unable to create popup window\n"; |
1773 |
} |
1774 |
|
1775 |
sub DESTROY { |
1776 |
my ($self) = @_; |
1777 |
|
1778 |
delete $self->{term}{_destroy}{$self}; |
1779 |
$self->{term}->ungrab; |
1780 |
} |
1781 |
|
1782 |
=back |
1783 |
|
1784 |
=cut |
1785 |
|
1786 |
package urxvt::watcher; |
1787 |
|
1788 |
@urxvt::timer::ISA = __PACKAGE__; |
1789 |
@urxvt::iow::ISA = __PACKAGE__; |
1790 |
@urxvt::pw::ISA = __PACKAGE__; |
1791 |
@urxvt::iw::ISA = __PACKAGE__; |
1792 |
|
1793 |
=head2 The C<urxvt::timer> Class |
1794 |
|
1795 |
This class implements timer watchers/events. Time is represented as a |
1796 |
fractional number of seconds since the epoch. Example: |
1797 |
|
1798 |
$term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0); |
1799 |
$term->{timer} = urxvt::timer |
1800 |
->new |
1801 |
->interval (1) |
1802 |
->cb (sub { |
1803 |
$term->{overlay}->set (0, 0, |
1804 |
sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]); |
1805 |
}); |
1806 |
|
1807 |
=over 4 |
1808 |
|
1809 |
=item $timer = new urxvt::timer |
1810 |
|
1811 |
Create a new timer object in started state. It is scheduled to fire |
1812 |
immediately. |
1813 |
|
1814 |
=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) |
1815 |
|
1816 |
Set the callback to be called when the timer triggers. |
1817 |
|
1818 |
=item $tstamp = $timer->at |
1819 |
|
1820 |
Return the time this watcher will fire next. |
1821 |
|
1822 |
=item $timer = $timer->set ($tstamp) |
1823 |
|
1824 |
Set the time the event is generated to $tstamp. |
1825 |
|
1826 |
=item $timer = $timer->interval ($interval) |
1827 |
|
1828 |
Normally (and when C<$interval> is C<0>), the timer will automatically |
1829 |
stop after it has fired once. If C<$interval> is non-zero, then the timer |
1830 |
is automatically rescheduled at the given intervals. |
1831 |
|
1832 |
=item $timer = $timer->start |
1833 |
|
1834 |
Start the timer. |
1835 |
|
1836 |
=item $timer = $timer->start ($tstamp) |
1837 |
|
1838 |
Set the event trigger time to C<$tstamp> and start the timer. |
1839 |
|
1840 |
=item $timer = $timer->after ($delay) |
1841 |
|
1842 |
Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>. |
1843 |
|
1844 |
=item $timer = $timer->stop |
1845 |
|
1846 |
Stop the timer. |
1847 |
|
1848 |
=back |
1849 |
|
1850 |
=head2 The C<urxvt::iow> Class |
1851 |
|
1852 |
This class implements io watchers/events. Example: |
1853 |
|
1854 |
$term->{socket} = ... |
1855 |
$term->{iow} = urxvt::iow |
1856 |
->new |
1857 |
->fd (fileno $term->{socket}) |
1858 |
->events (urxvt::EVENT_READ) |
1859 |
->start |
1860 |
->cb (sub { |
1861 |
my ($iow, $revents) = @_; |
1862 |
# $revents must be 1 here, no need to check |
1863 |
sysread $term->{socket}, my $buf, 8192 |
1864 |
or end-of-file; |
1865 |
}); |
1866 |
|
1867 |
|
1868 |
=over 4 |
1869 |
|
1870 |
=item $iow = new urxvt::iow |
1871 |
|
1872 |
Create a new io watcher object in stopped state. |
1873 |
|
1874 |
=item $iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... }) |
1875 |
|
1876 |
Set the callback to be called when io events are triggered. C<$reventmask> |
1877 |
is a bitset as described in the C<events> method. |
1878 |
|
1879 |
=item $iow = $iow->fd ($fd) |
1880 |
|
1881 |
Set the filedescriptor (not handle) to watch. |
1882 |
|
1883 |
=item $iow = $iow->events ($eventmask) |
1884 |
|
1885 |
Set the event mask to watch. The only allowed values are |
1886 |
C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed |
1887 |
together, or C<urxvt::EVENT_NONE>. |
1888 |
|
1889 |
=item $iow = $iow->start |
1890 |
|
1891 |
Start watching for requested events on the given handle. |
1892 |
|
1893 |
=item $iow = $iow->stop |
1894 |
|
1895 |
Stop watching for events on the given filehandle. |
1896 |
|
1897 |
=back |
1898 |
|
1899 |
=head2 The C<urxvt::iw> Class |
1900 |
|
1901 |
This class implements idle watchers, that get called automatically when |
1902 |
the process is idle. They should return as fast as possible, after doing |
1903 |
some useful work. |
1904 |
|
1905 |
=over 4 |
1906 |
|
1907 |
=item $iw = new urxvt::iw |
1908 |
|
1909 |
Create a new idle watcher object in stopped state. |
1910 |
|
1911 |
=item $iw = $iw->cb (sub { my ($iw) = @_; ... }) |
1912 |
|
1913 |
Set the callback to be called when the watcher triggers. |
1914 |
|
1915 |
=item $timer = $timer->start |
1916 |
|
1917 |
Start the watcher. |
1918 |
|
1919 |
=item $timer = $timer->stop |
1920 |
|
1921 |
Stop the watcher. |
1922 |
|
1923 |
=back |
1924 |
|
1925 |
=head2 The C<urxvt::pw> Class |
1926 |
|
1927 |
This class implements process watchers. They create an event whenever a |
1928 |
process exits, after which they stop automatically. |
1929 |
|
1930 |
my $pid = fork; |
1931 |
... |
1932 |
$term->{pw} = urxvt::pw |
1933 |
->new |
1934 |
->start ($pid) |
1935 |
->cb (sub { |
1936 |
my ($pw, $exit_status) = @_; |
1937 |
... |
1938 |
}); |
1939 |
|
1940 |
=over 4 |
1941 |
|
1942 |
=item $pw = new urxvt::pw |
1943 |
|
1944 |
Create a new process watcher in stopped state. |
1945 |
|
1946 |
=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... }) |
1947 |
|
1948 |
Set the callback to be called when the timer triggers. |
1949 |
|
1950 |
=item $pw = $timer->start ($pid) |
1951 |
|
1952 |
Tells the wqtcher to start watching for process C<$pid>. |
1953 |
|
1954 |
=item $pw = $pw->stop |
1955 |
|
1956 |
Stop the watcher. |
1957 |
|
1958 |
=back |
1959 |
|
1960 |
=head1 ENVIRONMENT |
1961 |
|
1962 |
=head2 URXVT_PERL_VERBOSITY |
1963 |
|
1964 |
This variable controls the verbosity level of the perl extension. Higher |
1965 |
numbers indicate more verbose output. |
1966 |
|
1967 |
=over 4 |
1968 |
|
1969 |
=item == 0 - fatal messages |
1970 |
|
1971 |
=item >= 3 - script loading and management |
1972 |
|
1973 |
=item >=10 - all called hooks |
1974 |
|
1975 |
=item >=11 - hook reutrn values |
1976 |
|
1977 |
=back |
1978 |
|
1979 |
=head1 AUTHOR |
1980 |
|
1981 |
Marc Lehmann <pcg@goof.com> |
1982 |
http://software.schmorp.de/pkg/rxvt-unicode |
1983 |
|
1984 |
=cut |
1985 |
|
1986 |
1 |