RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 06:17:34 +00:00
Code Issues Activity Actions

LibGfx+LibUnicode: Support specifying the path to search for emoji

Browse source 
Similar to the FontDatabase, this will be needed for Ladybird to find
emoji images. We now generate just the file name of emoji image in
LibUnicode, and look for that file in the specified path (defaulting to
/res/emoji) at runtime.
This commit is contained in:
Timothy Flynn 2023-03-01 08:43:22 -05:00 • committed by Linus Groh
parent fb6ca386cc
commit fd1fbad1d2
4 changed files with 31 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

27
Userland/Libraries/LibGfx/Font/Emoji.cpp
View file

@ -8,9 +8,11 @@
#include <AK/Debug.h>
#include <AK/DeprecatedString.h>
#include <AK/HashMap.h>
#include <AK/LexicalPath.h>
#include <AK/Span.h>
#include <AK/Utf32View.h>
#include <AK/Utf8View.h>
#include <AK/Variant.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/Font/Emoji.h>
#include <LibUnicode/CharacterTypes.h>
@ -23,6 +25,17 @@ namespace Gfx {
// https://unicode.org/emoji/charts/emoji-zwj-sequences.html
static HashMap<StringView, RefPtr<Gfx::Bitmap>> s_emojis;
static Variant<String, StringView> s_emoji_lookup_path = "/res/emoji"sv;
static StringView emoji_lookup_path()
{
return s_emoji_lookup_path.visit([](auto const& path) -> StringView { return path; });
}
void Emoji::set_emoji_lookup_path(String emoji_lookup_path)
{
s_emoji_lookup_path = move(emoji_lookup_path);
}
Bitmap const* Emoji::emoji_for_code_point(u32 code_point)
{
@ -35,19 +48,21 @@ Bitmap const* Emoji::emoji_for_code_points(ReadonlySpan<u32> const& code_points)
if (!emoji.has_value() || !emoji->image_path.has_value())
return nullptr;
auto emoji_path = emoji->image_path.value();
if (auto it = s_emojis.find(emoji_path); it != s_emojis.end())
auto emoji_file = emoji->image_path.value();
if (auto it = s_emojis.find(emoji_file); it != s_emojis.end())
return it->value.ptr();
auto bitmap_or_error = Bitmap::load_from_file(emoji_path);
auto emoji_path = LexicalPath::join(emoji_lookup_path(), emoji_file);
auto bitmap_or_error = Bitmap::load_from_file(emoji_path.string());
if (bitmap_or_error.is_error()) {
dbgln_if(EMOJI_DEBUG, "Generated emoji data has path {}, but could not load image: {}", emoji_path, bitmap_or_error.error());
s_emojis.set(emoji_path, nullptr);
dbgln_if(EMOJI_DEBUG, "Generated emoji data has file {}, but could not load image: {}", emoji_file, bitmap_or_error.error());
s_emojis.set(emoji_file, nullptr);
return nullptr;
}
auto bitmap = bitmap_or_error.release_value();
s_emojis.set(emoji_path, bitmap);
s_emojis.set(emoji_file, bitmap);
return bitmap.ptr();
}