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Now Paginator has a renderer field. This should make pagination implementations easily replacable from user code.

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This commit is contained in:
Relintai 2022-02-06 16:07:01 +01:00
parent 034931d390
commit ec61d444e4
2 changed files with 69 additions and 39 deletions
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101
web/html/paginator.cpp
View File

@ -42,32 +42,44 @@ String Paginator::get_current() {
String Paginator::get_pagination_for_indx(const int page_index) { String Paginator::get_pagination_for_indx(const int page_index) {
if (use_links_array) { if (use_links_array) {
return render_links(page_index); return render_links(renderer, page_index);
} else { } else {
return render_indexed(page_index); return render_indexed(renderer, page_index);
} }
} }
String Paginator::get_pagination_for_num(const int page_num) { String Paginator::get_pagination_for_num(const int page_num) {
return get_pagination_for_indx(page_num - 1); return get_pagination_for_indx(page_num - 1);
} }
String Paginator::render_indexed(const int page_index) { String Paginator::render_indexed(Ref<Paginator> target, const int page_index) {
String s = base_url; if (!target.is_valid()) {
target = Ref<Paginator>(this);
}
String s = target->base_url;
if (s.size() > 0 && s[s.size() - 1] != '/') { if (s.size() > 0 && s[s.size() - 1] != '/') {
s += '/'; s += '/';
} }
int starti = page_index - _max_visible_links / 2; int max_visible_links = target->_max_visible_links;
int toi = page_index + _max_visible_links / 2; int page_count = target->_page_count;
const String &tclass_main_ul = target->class_main_ul;
const String &tclass_enabled_li = target->class_enabled_li;
const String &tclass_disabled_li = target->class_disabled_li;
const String &ttext_next_link = target->text_next_link;
const String &ttext_prev_link = target->text_prev_link;
int starti = page_index - max_visible_links / 2;
int toi = page_index + max_visible_links / 2;
if (starti < 0) { if (starti < 0) {
toi += -starti; toi += -starti;
starti = 0; starti = 0;
} }
if (toi > _page_count) { if (toi > page_count) {
starti -= toi - _page_count; starti -= toi - page_count;
toi = _page_count; toi = page_count;
if (starti < 0) { if (starti < 0) {
starti = 0; starti = 0;
@ -78,62 +90,76 @@ String Paginator::render_indexed(const int page_index) {
HTMLBuilder b; HTMLBuilder b;
b.ul()->clsse(class_main_ul); b.ul()->clsse(tclass_main_ul);
if (_page_count != 0 && page_index != 0) { if (page_count != 0 && page_index != 0) {
b.li()->clsse(class_enabled_li); b.li()->clsse(tclass_enabled_li);
{ {
b.a()->href(s + std::to_string(page_index - 1))->rel_prev()->f()->w(text_prev_link)->ca(); b.a()->href(s + std::to_string(page_index - 1))->rel_prev()->f()->w(ttext_prev_link)->ca();
} }
b.cli(); b.cli();
} else { } else {
b.li()->clsse(class_disabled_li)->f()->w(text_prev_link)->cli(); b.li()->clsse(tclass_disabled_li)->f()->w(ttext_prev_link)->cli();
} }
if (starti != toi) { if (starti != toi) {
for (uint32_t i = starti; i < toi; ++i) { for (uint32_t i = starti; i < toi; ++i) {
if (i != page_index) { if (i != page_index) {
b.li()->clsse(class_enabled_li); b.li()->clsse(tclass_enabled_li);
{ {
b.a()->href(s + std::to_string(i + 1))->f()->w(std::to_string(i + 1))->ca(); b.a()->href(s + std::to_string(i + 1))->f()->w(std::to_string(i + 1))->ca();
} }
b.cli(); b.cli();
} else { } else {
b.li()->clsse(class_disabled_li)->f()->w(std::to_string(i + 1))->cli(); b.li()->clsse(tclass_disabled_li)->f()->w(std::to_string(i + 1))->cli();
} }
} }
} else { } else {
b.li()->clsse(class_disabled_li)->f()->w(std::to_string(1))->cli(); b.li()->clsse(tclass_disabled_li)->f()->w(std::to_string(1))->cli();
} }
if (_page_count != 0 && page_index < _page_count - 1) { if (page_count != 0 && page_index < page_count - 1) {
b.li()->clsse(class_enabled_li); b.li()->clsse(tclass_enabled_li);
{ {
b.a()->href(s + std::to_string(page_index + 2))->rel_next()->f()->w(text_next_link)->ca(); b.a()->href(s + std::to_string(page_index + 2))->rel_next()->f()->w(ttext_next_link)->ca();
} }
b.cli(); b.cli();
} else { } else {
b.li()->clsse(class_disabled_li)->f()->w(text_next_link)->cli(); b.li()->clsse(tclass_disabled_li)->f()->w(ttext_next_link)->cli();
} }
b.cul(); b.cul();
return b.result; return b.result;
} }
String Paginator::render_links(const int page_index) { String Paginator::render_links(Ref<Paginator> target, const int page_index) {
if (!target.is_valid()) {
target = Ref<Paginator>(this);
}
if (page_index < 0) { if (page_index < 0) {
return ""; return "";
} }
String s = base_url;
String s = target->base_url;
if (s.size() > 0 && s[s.size() - 1] != '/') { if (s.size() > 0 && s[s.size() - 1] != '/') {
s += '/'; s += '/';
} }
uint32_t max = links.size(); uint32_t max = target->links.size();
int starti = page_index - _max_visible_links / 2;
int toi = page_index + _max_visible_links / 2; int max_visible_links = target->_max_visible_links;
int page_count = target->_page_count;
const String &tclass_main_ul = target->class_main_ul;
const String &tclass_enabled_li = target->class_enabled_li;
const String &tclass_disabled_li = target->class_disabled_li;
const String &ttext_next_link = target->text_next_link;
const String &ttext_prev_link = target->text_prev_link;
int starti = page_index - max_visible_links / 2;
int toi = page_index + max_visible_links / 2;
if (starti < 0) { if (starti < 0) {
toi += -starti; toi += -starti;
@ -153,42 +179,42 @@ String Paginator::render_links(const int page_index) {
HTMLBuilder b; HTMLBuilder b;
b.ul()->clsse(class_main_ul); b.ul()->clsse(tclass_main_ul);
if (max != 0 && page_index != 0) { if (max != 0 && page_index != 0) {
b.li()->clsse(class_enabled_li); b.li()->clsse(tclass_enabled_li);
{ {
b.a()->href(s + links[page_index - 1])->rel_prev()->f()->w(text_prev_link)->ca(); b.a()->href(s + target->links[page_index - 1])->rel_prev()->f()->w(ttext_prev_link)->ca();
} }
b.cli(); b.cli();
} else { } else {
b.li()->clsse(class_disabled_li)->f()->w(text_prev_link)->cli(); b.li()->clsse(tclass_disabled_li)->f()->w(ttext_prev_link)->cli();
} }
if (starti != toi) { if (starti != toi) {
for (uint32_t i = starti; i < toi; ++i) { for (uint32_t i = starti; i < toi; ++i) {
if (i != page_index) { if (i != page_index) {
b.li()->clsse(class_enabled_li); b.li()->clsse(tclass_enabled_li);
{ {
b.a()->href(s + links[i])->f()->w(std::to_string(i + 1))->ca(); b.a()->href(s + target->links[i])->f()->w(std::to_string(i + 1))->ca();
} }
b.cli(); b.cli();
} else { } else {
b.li()->clsse(class_disabled_li)->f()->w(std::to_string(i + 1))->cli(); b.li()->clsse(tclass_disabled_li)->f()->w(std::to_string(i + 1))->cli();
} }
} }
} else { } else {
b.li()->clsse(class_disabled_li)->f()->w(std::to_string(1))->cli(); b.li()->clsse(tclass_disabled_li)->f()->w(std::to_string(1))->cli();
} }
if (max != 0 && page_index < max - 1) { if (max != 0 && page_index < max - 1) {
b.li()->clsse(class_enabled_li); b.li()->clsse(tclass_enabled_li);
{ {
b.a()->href(s + links[page_index + 1])->rel_next()->f()->w(text_next_link)->ca(); b.a()->href(s + target->links[page_index + 1])->rel_next()->f()->w(ttext_next_link)->ca();
} }
b.cli(); b.cli();
} else { } else {
b.li()->clsse(class_disabled_li)->f()->w(text_next_link)->cli(); b.li()->clsse(tclass_disabled_li)->f()->w(ttext_next_link)->cli();
} }
b.cul(); b.cul();
@ -213,4 +239,5 @@ Paginator::Paginator() {
} }
Paginator::~Paginator() { Paginator::~Paginator() {
renderer.unref();
} }

7
web/html/paginator.h
View File

@ -39,8 +39,11 @@ public:
String get_pagination_for_indx(const int page_index); String get_pagination_for_indx(const int page_index);
String get_pagination_for_num(const int page_num); String get_pagination_for_num(const int page_num);
virtual String render_indexed(const int page_index); virtual String render_indexed(Ref<Paginator> target, const int page_index);
virtual String render_links(const int page_index); virtual String render_links(Ref<Paginator> target, const int page_index);
//If this is set, render_indexed and render_links will be called on this
Ref<Paginator> renderer;
Paginator(); Paginator();
~Paginator(); ~Paginator();