1 package SL::Layout::Base;
4 use parent qw(Rose::Object);
6 use List::MoreUtils qw(uniq);
9 use Rose::Object::MakeMethods::Generic (
10 'scalar --get_set_init' => [ qw(menu auto_reload_resources_param) ],
11 'scalar' => qw(focus),
13 'add_stylesheets_inline' => { interface => 'add', hash_key => 'stylesheets_inline' },
14 'add_javascripts_inline' => { interface => 'add', hash_key => 'javascripts_inline' },
15 'sub_layouts', => { interface => 'get_set_init' },
16 'add_sub_layouts' => { interface => 'add', hash_key => 'sub_layouts' },
26 my ($class, @slurp) = @_;
28 my $self = $class->SUPER::new(@slurp);
32 my @menu_files = qw(menus/erp.ini);
33 unshift @menu_files, 'menus/crm.ini' if $::instance_conf->crm_installed;
34 Menu->new(@menu_files);
37 sub init_auto_reload_resources_param {
38 return '' unless $::lx_office_conf{debug}->{auto_reload_resources};
39 return sprintf('?rand=%d-%d-%d', Time::HiRes::gettimeofday(), int(rand 1000000000000));
42 ##########################################
43 # inheritable/overridable
44 ##########################################
47 join '', map { $_->pre_content } $_[0]->sub_layouts;
51 join '', map { $_->start_content } $_[0]->sub_layouts;
55 join '', map { $_->end_content } $_[0]->sub_layouts;
59 join '', map { $_->post_content } $_[0]->sub_layouts;
62 sub stylesheets_inline {
63 uniq ( map { $_->stylesheets_inline } $_[0]->sub_layouts ),
64 @{ $_[0]->{stylesheets_inline} || [] };
67 sub javascripts_inline {
68 uniq ( map { $_->javascripts_inline } $_[0]->sub_layouts ),
69 @{ $_[0]->{javascripts_inline} || [] };
72 sub init_sub_layouts { [] }
75 #########################################
77 ########################################
85 push @{ $self->{stylesheets} ||= [] }, @_ if @_;
86 @{ $self->{stylesheets} ||= [] };
91 my $css_path = $self->get_stylesheet_for_user;
93 return uniq grep { $_ } map { $self->_find_stylesheet($_, $css_path) }
94 $self->use_stylesheet, map { $_->stylesheets } $self->sub_layouts;
97 sub _find_stylesheet {
98 my ($self, $stylesheet, $css_path) = @_;
100 return "$css_path/$stylesheet" if -f "$css_path/$stylesheet";
101 return "css/$stylesheet" if -f "css/$stylesheet";
102 return $stylesheet if -f $stylesheet;
105 sub get_stylesheet_for_user {
106 my $css_path = 'css';
107 if (my $user_style = $::myconfig{stylesheet}) {
108 $user_style =~ s/\.css$//; # nuke trailing .css, this is a remnand of pre 2.7.0 stylesheet handling
109 if (-d "$css_path/$user_style" &&
110 -f "$css_path/$user_style/main.css") {
111 $css_path = "$css_path/$user_style";
113 $css_path = "$css_path/kivitendo";
116 $css_path = "$css_path/kivitendo";
118 $::myconfig{css_path} = $css_path; # needed for menunew, FIXME: don't do this here
123 sub add_javascripts {
129 push @{ $self->{javascripts} ||= [] }, @_ if @_;
130 @{ $self->{javascripts} ||= [] };
136 return uniq grep { $_ } map { $self->_find_javascript($_) }
137 map({ $_->javascripts } $self->sub_layouts), $self->use_javascript;
140 sub _find_javascript {
141 my ($self, $javascript) = @_;
143 return "js/$javascript" if -f "js/$javascript";
144 return $javascript if -f $javascript;
148 ############################################
149 # track state of form header
150 ############################################
153 $_[0]{_header_done} = 1;
172 SL::Layout::Base - Base class for layouts
176 package SL::Layout::MyLayout;
178 use parent qw(SL::Layout::Base);
182 For a description about the external interface of layouts in general see
183 L<SL::Layout::Dispatcher>.
185 This is a base class for layouts in general. It provides the basic interface
186 and some capabilities to extend and cascade layouts.
189 =head1 IMPLEMENTING LAYOUT CALLBACKS
191 There are eight callbacks (C<pre_content>, C<post_content>, C<start_content>,
192 C<end_content>, C<stylesheets>, C<stylesheets_inline>, C<javscripts>,
193 C<javascripts_inline>) which are documented in L<SL::Layout::Dispatcher>. If
194 you are writing a new simple layout, you can just override some of them like
197 package SL::Layout::MyEvilLayout;
200 '<h1>This is MY page now</h1>'
204 '<p align="right"><small><em>Brought to you by my own layout class</em></small></p>'
208 To preserve the sanitizing effects of C<stylesheets> and C<javascripts> you should instead do the following:
211 $_[0]->add_stylesheets(qw(mystyle1.css mystyle2.css);
212 $_[0]->SUPER::stylesheets;
215 If you want to add something to a different layout, you should write a sub
216 layout and add it to the other layouts.
221 Layouts can be aggregated, so that common elements can be used in different
222 layouts. Currently this is used for the L<None|SL::Layout::None> sub layout,
223 which contains a lot of the stylesheets and javascripts necessary. Another
224 example is the L<Top|SL::Layout::Top> layout, which is used to generate a
225 common top bar for all menu types.
227 To add a sub layout to your layout just overwrite the sub_layout method:
229 package SL::Layout::MyFinalLayout;
231 sub init_sub_layout {
233 SL::Layout::None->new,
234 SL::Layout::MyEvilLayout->new,
238 You can also add a sublayout at runtime:
240 $layout->add_sub_layout(SL::Layout::SideBar->new);
242 The standard implementation for the callbacks will see to it that the contents
243 of all sub layouts will get rendered.
246 =head1 COMBINING SUB LAYOUTS AND OWN BEHAVIOUR
248 This is still somewhat rough, and improvements are welcome.
250 For the C<*_content> callbacks this works if you just remember to dispatch to the base method:
253 return $_[0]->render_status_bar .
254 $_[0]->SUPER::post_content
257 For the stylesheet and javascript callbacks things are hard, because of the
258 backwards compatibility, and the built-in sanity checks. The best way currently
259 is to just add your content and dispatch to the base method.
262 $_[0]->add_stylesheets(qw(mystyle1.css mystyle2.css);
263 $_[0]->SUPER::stylesheets;
266 =head1 GORY DETAILS ABOUT JAVASCRIPT AND STYLESHEET OVERLOADING
268 The original code used to store one stylehsheet in C<< $form->{stylesheet} >> and
269 allowed/expected authors of potential C<bin/mozilla/> controllers to change
270 that into their own modified stylesheet.
272 This was at some point cleaned up into a method C<use stylesheet> which took a
273 string of space separated stylesheets and processed them into the response.
275 A lot of controllers are still using this methods so the layout interface
276 supports it to change as few controller code as possible, while providing the
277 more intuitive C<add_stylesheets> method.
279 At the same time the following things need to be possible:
287 $layout->add_stylesheets(...)
289 Since add_stylesheets adds to C<< $self->{stylesheets} >> there must be a way to read
290 from it. Currently this is the deprecated C<use_stylesheet>.
296 A leaf layout should be able to override a callback to return a list.
302 C<stylesheets> needs to retain it's sanitizing behaviour.
308 The standard implementation should be able to collect from sub layouts.
312 Preserving of Inclusion Order
314 Since there is currently no standard way of mixing own content and including
315 sub layouts, this has to be done manually. Certain things like jquery get added
316 in L<SL::Layout::None> so that they get rendered first.
320 The current implementation provides no good candidate for overriding in sub
321 classes, which should be changed. The other points work pretty well.
325 None yet, if you don't count the horrible stylesheet/javascript interface.
329 Sven Schöling E<lt>s.schoeling@linet-services.deE<gt>