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Code Issues Releases Wiki Activity

Add updating emoji on the run.

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This commit is contained in:
John Preston
2018-12-10 17:26:53 +04:00
parent 8190b10680
commit 79fea49272
5 changed files with 115 additions and 21 deletions
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57
Telegram/SourceFiles/ui/widgets/input_fields.cpp
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@@ -45,6 +45,49 @@ const auto kClearFormatSequence = QKeySequence("ctrl+shift+n");
const auto kMonospaceSequence = QKeySequence("ctrl+shift+m");
const auto kEditLinkSequence = QKeySequence("ctrl+k");
class InputDocument : public QTextDocument {
public:
InputDocument(QObject *parent, const style::InputField &st);
protected:
QVariant loadResource(int type, const QUrl &name) override;
private:
const style::InputField &_st;
std::map<QUrl, QVariant> _emojiCache;
rpl::lifetime _lifetime;
};
InputDocument::InputDocument(QObject *parent, const style::InputField &st)
: QTextDocument(parent)
, _st(st) {
Ui::Emoji::Updated(
) | rpl::start_with_next([=] {
_emojiCache.clear();
}, _lifetime);
}
QVariant InputDocument::loadResource(int type, const QUrl &name) {
if (type != QTextDocument::ImageResource
|| name.scheme() != qstr("emoji")) {
return QTextDocument::loadResource(type, name);
}
const auto i = _emojiCache.find(name);
if (i != _emojiCache.end()) {
return i->second;
}
auto result = [&] {
if (const auto emoji = Ui::Emoji::FromUrl(name.toDisplayString())) {
const auto height = _st.font->height;
return QVariant(Ui::Emoji::SinglePixmap(emoji, height));
}
return QVariant();
}();
_emojiCache.emplace(name, result);
return result;
}
bool IsNewline(QChar ch) {
return (kNewlineChars.indexOf(ch) >= 0);
}
@@ -727,10 +770,6 @@ public:
Inner(not_null<InputField*> parent) : QTextEdit(parent) {
}
QVariant loadResource(int type, const QUrl &name) override {
return outer()->loadResource(type, name);
}
protected:
bool viewportEvent(QEvent *e) override {
return outer()->viewportEventInner(e);
@@ -1141,6 +1180,8 @@ InputField::InputField(
, _inner(std::make_unique<Inner>(this))
, _lastTextWithTags(value)
, _placeholderFactory(std::move(placeholderFactory)) {
_inner->setDocument(Ui::CreateChild<InputDocument>(_inner.get(), _st));
_inner->setAcceptRichText(false);
resize(_st.width, _minHeight);
@@ -1233,14 +1274,6 @@ bool InputField::viewportEventInner(QEvent *e) {
return _inner->QTextEdit::viewportEvent(e);
}
QVariant InputField::loadResource(int type, const QUrl &name) {
const auto imageName = name.toDisplayString();
if (const auto emoji = Ui::Emoji::FromUrl(imageName)) {
return QVariant(Ui::Emoji::SinglePixmap(emoji, _st.font->height));
}
return _inner->QTextEdit::loadResource(type, name);
}
void InputField::updatePalette() {
auto p = _inner->palette();
p.setColor(QPalette::Text, _st.textFg->c);