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Added 2 pagination helpers to Utils.

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Relintai 2020-12-28 23:13:54 +01:00
parent d7951f8fdd
commit f146a6a7bc
2 changed files with 173 additions and 9 deletions
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166
core/utils.cpp
View File

@ -1,8 +1,10 @@
#include "utils.h" #include "utils.h"
#include <sstream> #include "html_builder.h"
#include <memory>
#include <maddy/parser.h> #include <maddy/parser.h>
#include <memory>
#include <sstream>
#include <string>
void Utils::newline_to_br(std::string *str) { void Utils::newline_to_br(std::string *str) {
str_replace(str, "\r\n", "<br>"); str_replace(str, "\r\n", "<br>");
@ -11,7 +13,7 @@ void Utils::newline_to_br(std::string *str) {
void Utils::markdown_to_html(std::string *str) { void Utils::markdown_to_html(std::string *str) {
std::shared_ptr<maddy::ParserConfig> config = std::make_shared<maddy::ParserConfig>(); std::shared_ptr<maddy::ParserConfig> config = std::make_shared<maddy::ParserConfig>();
config->isEmphasizedParserEnabled = true; config->isEmphasizedParserEnabled = true;
config->isHTMLWrappedInParagraph = true; config->isHTMLWrappedInParagraph = true;
std::shared_ptr<maddy::Parser> parser = std::make_shared<maddy::Parser>(config); std::shared_ptr<maddy::Parser> parser = std::make_shared<maddy::Parser>(config);
@ -23,6 +25,164 @@ void Utils::markdown_to_html(std::string *str) {
(*str) = htmlOutput; (*str) = htmlOutput;
} }
std::string Utils::get_pagination(const std::string base_url, const uint32_t max, const uint32_t current_index, const uint32_t max_visible_links) {
std::string s = base_url;
if (s.size() > 0 && s[s.size() - 1] != '/') {
s += '/';
}
int starti = current_index - max_visible_links / 2;
int toi = current_index + max_visible_links / 2;
if (starti < 0) {
toi += -starti;
starti = 0;
}
if (toi > max) {
starti -= toi - max;
toi = max;
if (starti < 0) {
starti = 0;
}
}
//int toi = max > max_visible_links ? max_visible_links : max;
HTMLBuilder b;
b.ul()->cls("pagination");
if (max != 0 && current_index != 0) {
b.li();
b.a()->href(s + std::to_string(current_index - 1));
b.w("previous");
b.ca();
b.cli();
} else {
b.li()->cls("disabled");
b.w("previous");
b.cli();
}
if (starti != toi) {
for (uint32_t i = starti; i < toi; ++i) {
if (i != current_index) {
b.li();
b.a()->href(s + std::to_string(i + 1));
b.w(std::to_string(i + 1));
b.ca();
b.cli();
} else {
b.li()->cls("disabled");
b.w(std::to_string(i + 1));
b.cli();
}
}
} else {
b.li()->cls("disabled");
b.w(std::to_string(1));
b.cli();
}
if (max != 0 && current_index < max - 1) {
b.li();
b.a()->href(s + std::to_string(current_index + 2));
b.w("next");
b.ca();
b.cli();
} else {
b.li()->cls("disabled");
b.w("next");
b.cli();
}
b.cul();
return b.result;
}
std::string Utils::get_pagination_links(const std::string base_url, const std::vector<std::string> &links, const uint32_t current_index, const uint32_t max_visible_links) {
std::string s = base_url;
if (s.size() > 0 && s[s.size() - 1] != '/') {
s += '/';
}
uint32_t max = links.size();
int starti = current_index - max_visible_links / 2;
int toi = current_index + max_visible_links / 2;
if (starti < 0) {
toi += -starti;
starti = 0;
}
if (toi > max) {
starti -= toi - max;
toi = max;
if (starti < 0) {
starti = 0;
}
}
//int toi = max > max_visible_links ? max_visible_links : max;
HTMLBuilder b;
b.ul()->cls("pagination");
if (max != 0 && current_index != 0) {
b.li();
b.a()->href(s + links[current_index - 1]);
b.w("previous");
b.ca();
b.cli();
} else {
b.li()->cls("disabled");
b.w("previous");
b.cli();
}
if (starti != toi) {
for (uint32_t i = starti; i < toi; ++i) {
if (i != current_index) {
b.li();
b.a()->href(s + links[i]);
b.w(std::to_string(i + 1));
b.ca();
b.cli();
} else {
b.li()->cls("disabled");
b.w(std::to_string(i + 1));
b.cli();
}
}
} else {
b.li()->cls("disabled");
b.w(std::to_string(1));
b.cli();
}
if (max != 0 && current_index < max - 1) {
b.li();
b.a()->href(s + links[current_index + 1]);
b.w("next");
b.ca();
b.cli();
} else {
b.li()->cls("disabled");
b.w("next");
b.cli();
}
b.cul();
return b.result;
}
void Utils::str_replace(std::string *str, const std::string &from, const std::string &to) { void Utils::str_replace(std::string *str, const std::string &from, const std::string &to) {
if (from.empty()) if (from.empty())
return; return;

16
core/utils.h
View File

@ -2,17 +2,21 @@
#define UTILS_H #define UTILS_H
#include <string> #include <string>
#include <vector>
class Utils { class Utils {
public: public:
static void newline_to_br(std::string *str); static void newline_to_br(std::string *str);
//htmlspecialchars //htmlspecialchars
static void markdown_to_html(std::string *str); static void markdown_to_html(std::string *str);
static std::string get_pagination(const std::string base_url, const uint32_t max, const uint32_t current_index, const uint32_t max_visible_links = 10);
static std::string get_pagination_links(const std::string base_url, const std::vector<std::string> &links, const uint32_t current_index, const uint32_t max_visible_links = 10);
static void str_replace(std::string *str, const std::string &from, const std::string &to);
static void str_replace(std::string *str, const std::string& from, const std::string& to);
protected: protected:
}; };
#endif #endif