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' },
27 my ($class, @slurp) = @_;
29 my $self = $class->SUPER::new(@slurp);
34 if(scalar(grep(/^Switzerland/, (selectrow_query($::form, $::form->get_standard_dbh, 'SELECT coa FROM defaults'))[0]))) {
35 @menu_files = qw(menus/erp_ch.ini);
37 @menu_files = qw(menus/erp.ini);
39 unshift @menu_files, 'menus/crm.ini' if $::instance_conf->crm_installed;
40 Menu->new(@menu_files);
43 sub init_auto_reload_resources_param {
44 return '' unless $::lx_office_conf{debug}->{auto_reload_resources};
45 return sprintf('?rand=%d-%d-%d', Time::HiRes::gettimeofday(), int(rand 1000000000000));
48 ##########################################
49 # inheritable/overridable
50 ##########################################
53 join '', map { $_->pre_content } $_[0]->sub_layouts;
57 join '', map { $_->start_content } $_[0]->sub_layouts;
61 join '', map { $_->end_content } $_[0]->sub_layouts;
65 join '', map { $_->post_content } $_[0]->sub_layouts;
68 sub stylesheets_inline {
69 uniq ( map { $_->stylesheets_inline } $_[0]->sub_layouts ),
70 @{ $_[0]->{stylesheets_inline} || [] };
73 sub javascripts_inline {
74 uniq ( map { $_->javascripts_inline } $_[0]->sub_layouts ),
75 @{ $_[0]->{javascripts_inline} || [] };
78 sub init_sub_layouts { [] }
81 #########################################
83 ########################################
91 push @{ $self->{stylesheets} ||= [] }, @_ if @_;
92 @{ $self->{stylesheets} ||= [] };
97 my $css_path = $self->get_stylesheet_for_user;
99 return uniq grep { $_ } map { $self->_find_stylesheet($_, $css_path) }
100 $self->use_stylesheet, map { $_->stylesheets } $self->sub_layouts;
103 sub _find_stylesheet {
104 my ($self, $stylesheet, $css_path) = @_;
106 return "$css_path/$stylesheet" if -f "$css_path/$stylesheet";
107 return "css/$stylesheet" if -f "css/$stylesheet";
108 return $stylesheet if -f $stylesheet;
111 sub get_stylesheet_for_user {
112 my $css_path = 'css';
113 if (my $user_style = $::myconfig{stylesheet}) {
114 $user_style =~ s/\.css$//; # nuke trailing .css, this is a remnant of pre 2.7.0 stylesheet handling
115 if (-d "$css_path/$user_style" &&
116 -f "$css_path/$user_style/main.css") {
117 $css_path = "$css_path/$user_style";
119 $css_path = "$css_path/kivitendo";
122 $css_path = "$css_path/kivitendo";
128 sub add_javascripts {
134 push @{ $self->{javascripts} ||= [] }, @_ if @_;
135 @{ $self->{javascripts} ||= [] };
141 return uniq grep { $_ } map { $self->_find_javascript($_) }
142 map({ $_->javascripts } $self->sub_layouts), $self->use_javascript;
145 sub _find_javascript {
146 my ($self, $javascript) = @_;
148 return "js/$javascript" if -f "js/$javascript";
149 return $javascript if -f $javascript;
153 ############################################
154 # track state of form header
155 ############################################
158 $_[0]{_header_done} = 1;
177 SL::Layout::Base - Base class for layouts
181 package SL::Layout::MyLayout;
183 use parent qw(SL::Layout::Base);
187 For a description of the external interface of layouts in general see
188 L<SL::Layout::Dispatcher>.
190 This is a base class for layouts in general. It provides the basic interface
191 and some capabilities to extend and cascade layouts.
194 =head1 IMPLEMENTING LAYOUT CALLBACKS
196 There are eight callbacks (C<pre_content>, C<post_content>, C<start_content>,
197 C<end_content>, C<stylesheets>, C<stylesheets_inline>, C<javascripts>,
198 C<javascripts_inline>) which are documented in L<SL::Layout::Dispatcher>. If
199 you are writing a new simple layout, you can just override some of them like
202 package SL::Layout::MyEvilLayout;
205 '<h1>This is MY page now</h1>'
209 '<p align="right"><small><em>Brought to you by my own layout class</em></small></p>'
213 To preserve the sanitizing effects of C<stylesheets> and C<javascripts> you should instead do the following:
216 $_[0]->add_stylesheets(qw(mystyle1.css mystyle2.css);
217 $_[0]->SUPER::stylesheets;
220 If you want to add something to a different layout, you should write a sub
221 layout and add it to the other layouts.
226 Layouts can be aggregated, so that common elements can be used in different
227 layouts. Currently this is used for the L<None|SL::Layout::None> sub layout,
228 which contains a lot of the stylesheets and javascripts necessary. Another
229 example is the L<Top|SL::Layout::Top> layout, which is used to generate a
230 common top bar for all menu types.
232 To add a sub layout to your layout just overwrite the sub_layout method:
234 package SL::Layout::MyFinalLayout;
236 sub init_sub_layout {
238 SL::Layout::None->new,
239 SL::Layout::MyEvilLayout->new,
243 You can also add a sublayout at runtime:
245 $layout->add_sub_layout(SL::Layout::SideBar->new);
247 The standard implementation for the callbacks will see to it that the contents
248 of all sub layouts will get rendered.
251 =head1 COMBINING SUB LAYOUTS AND OWN BEHAVIOUR
253 This is still somewhat rough, and improvements are welcome.
255 For the C<*_content> callbacks this works if you just remember to dispatch to the base method:
258 return $_[0]->render_status_bar .
259 $_[0]->SUPER::post_content
262 For the stylesheet and javascript callbacks things are hard, because of the
263 backwards compatibility, and the built-in sanity checks. The best way currently
264 is to just add your content and dispatch to the base method.
267 $_[0]->add_stylesheets(qw(mystyle1.css mystyle2.css);
268 $_[0]->SUPER::stylesheets;
271 =head1 GORY DETAILS ABOUT JAVASCRIPT AND STYLESHEET OVERLOADING
273 The original code used to store one stylesheet in C<< $form->{stylesheet} >> and
274 allowed/expected authors of potential C<bin/mozilla/> controllers to change
275 that into their own modified stylesheet.
277 This was at some point cleaned up into a method C<use stylesheet> which took a
278 string of space separated stylesheets and processed them into the response.
280 A lot of controllers are still using this method so the layout interface
281 supports it to change as little controller code as possible, while providing the
282 more intuitive C<add_stylesheets> method.
284 At the same time the following things need to be possible:
292 $layout->add_stylesheets(...)
294 Since add_stylesheets adds to C<< $self->{stylesheets} >> there must be a way to read
295 from it. Currently this is the deprecated C<use_stylesheet>.
301 A leaf layout should be able to override a callback to return a list.
307 C<stylesheets> needs to retain its sanitizing behaviour.
313 The standard implementation should be able to collect from sub layouts.
317 Preserving Inclusion Order
319 Since there is currently no standard way of mixing own content and including
320 sub layouts, this has to be done manually. Certain things like jquery get added
321 in L<SL::Layout::None> so that they get rendered first.
325 The current implementation provides no good candidate for overriding in sub
326 classes, which should be changed. The other points work pretty well.
330 None yet, if you don't count the horrible stylesheet/javascript interface.
334 Sven Schöling E<lt>s.schoeling@linet-services.deE<gt>