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add API to create QR codes from any data

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This commit is contained in:
B. Petersen
2024-10-22 00:40:50 +02:00
parent f2e600dc55
commit b899989c8c
5 changed files with 99 additions and 2 deletions
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16
deltachat-ffi/deltachat.h
View File

@@ -2791,6 +2791,22 @@ dc_array_t* dc_get_locations (dc_context_t* context, uint32_t cha
void dc_delete_all_locations (dc_context_t* context);
// misc
/**
* Create a QR code from any input data.
*
* The QR code is returned as a square SVG image.
*
* @memberof dc_context_t
* @param payload The content for the QR code.
* @return SVG image with the QR code.
* On errors, an empty string is returned.
* The returned string must be released using dc_str_unref() after usage.
*/
char* dc_create_qr_svg (const char* payload);
/**
* Get last error string.
*

14
deltachat-ffi/src/lib.rs
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@@ -30,7 +30,7 @@ use deltachat::ephemeral::Timer as EphemeralTimer;
use deltachat::imex::BackupProvider;
use deltachat::key::preconfigure_keypair;
use deltachat::message::MsgId;
use deltachat::qr_code_generator::{generate_backup_qr, get_securejoin_qr_svg};
use deltachat::qr_code_generator::{create_qr_svg, generate_backup_qr, get_securejoin_qr_svg};
use deltachat::stock_str::StockMessage;
use deltachat::webxdc::StatusUpdateSerial;
use deltachat::*;
@@ -2594,6 +2594,18 @@ pub unsafe extern "C" fn dc_delete_all_locations(context: *mut dc_context_t) {
});
}
#[no_mangle]
pub unsafe extern "C" fn dc_create_qr_svg(payload: *const libc::c_char) -> *mut libc::c_char {
if payload.is_null() {
eprintln!("ignoring careless call to dc_create_qr_svg()");
return "".strdup();
}
create_qr_svg(&to_string_lossy(payload))
.unwrap_or_else(|_| "".to_string())
.strdup()
}
#[no_mangle]
pub unsafe extern "C" fn dc_get_last_error(context: *mut dc_context_t) -> *mut libc::c_char {
if context.is_null() {