#include "widgets/helper/ResizingTextEdit.hpp" #include "common/Common.hpp" #include "common/CompletionModel.hpp" namespace chatterino { ResizingTextEdit::ResizingTextEdit() { auto sizePolicy = this->sizePolicy(); sizePolicy.setHeightForWidth(true); sizePolicy.setVerticalPolicy(QSizePolicy::Preferred); this->setSizePolicy(sizePolicy); this->setAcceptRichText(false); QObject::connect(this, &QTextEdit::textChanged, this, &QWidget::updateGeometry); this->setFocusPolicy(Qt::ClickFocus); } QSize ResizingTextEdit::sizeHint() const { return QSize(this->width(), this->heightForWidth(this->width())); } bool ResizingTextEdit::hasHeightForWidth() const { return true; } int ResizingTextEdit::heightForWidth(int) const { auto margins = this->contentsMargins(); return margins.top() + document()->size().height() + margins.bottom() + 5; } QString ResizingTextEdit::textUnderCursor(bool *hadSpace) const { auto currentText = this->toPlainText(); QTextCursor tc = this->textCursor(); auto textUpToCursor = currentText.left(tc.selectionStart()); auto words = textUpToCursor.splitRef(' '); if (words.size() == 0) { return QString(); } bool first = true; QString lastWord; for (auto it = words.crbegin(); it != words.crend(); ++it) { auto word = *it; if (first && word.isEmpty()) { first = false; if (hadSpace != nullptr) { *hadSpace = true; } continue; } lastWord = word.toString(); break; } if (lastWord.isEmpty()) { return QString(); } return lastWord; } void ResizingTextEdit::keyPressEvent(QKeyEvent *event) { event->ignore(); this->keyPressed.invoke(event); bool doComplete = (event->key() == Qt::Key_Tab || event->key() == Qt::Key_Backtab) && (event->modifiers() & Qt::ControlModifier) == Qt::NoModifier; if (doComplete) { // check if there is a completer if (!this->completer) { return; } QString currentCompletionPrefix = this->textUnderCursor(); // check if there is something to complete if (!currentCompletionPrefix.size()) { return; } auto *completionModel = static_cast(this->completer->model()); if (!this->completionInProgress) { // First type pressing tab after modifying a message, we refresh our completion model this->completer->setModel(completionModel); completionModel->refresh(); this->completionInProgress = true; this->completer->setCompletionPrefix(currentCompletionPrefix); this->completer->complete(); return; } // scrolling through selections if (event->key() == Qt::Key_Tab) { if (!this->completer->setCurrentRow(this->completer->currentRow() + 1)) { // wrap over and start again this->completer->setCurrentRow(0); } } else { if (!this->completer->setCurrentRow(this->completer->currentRow() - 1)) { // wrap over and start again this->completer->setCurrentRow(this->completer->completionCount() - 1); } } this->completer->complete(); return; } // (hemirt) // this resets the selection in the completion list, it should probably only trigger on actual // chat input (space, character) and not on every key input (pressing alt for example) // (fourtf) // fixed for shift+tab, there might be a better solution but nobody is gonna bother anyways if (event->key() != Qt::Key_Shift && event->key() != Qt::Key_Control && event->key() != Qt::Key_Alt && event->key() != Qt::Key_Super_L && event->key() != Qt::Key_Super_R) { this->completionInProgress = false; } if (!event->isAccepted()) { QTextEdit::keyPressEvent(event); } } void ResizingTextEdit::focusInEvent(QFocusEvent *event) { QTextEdit::focusInEvent(event); if (event->gotFocus()) { this->focused.invoke(); } } void ResizingTextEdit::focusOutEvent(QFocusEvent *event) { QTextEdit::focusOutEvent(event); if (event->lostFocus()) { this->focusLost.invoke(); } } void ResizingTextEdit::setCompleter(QCompleter *c) { if (this->completer) { QObject::disconnect(this->completer, nullptr, this, nullptr); } this->completer = c; if (!this->completer) { return; } this->completer->setWidget(this); this->completer->setCompletionMode(QCompleter::InlineCompletion); this->completer->setCaseSensitivity(Qt::CaseInsensitive); QObject::connect(completer, static_cast(&QCompleter::highlighted), this, &ResizingTextEdit::insertCompletion); } void ResizingTextEdit::insertCompletion(const QString &completion) { if (this->completer->widget() != this) { return; } bool hadSpace = false; auto prefix = this->textUnderCursor(&hadSpace); int prefixSize = prefix.size(); if (hadSpace) { ++prefixSize; } QTextCursor tc = this->textCursor(); tc.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor, prefixSize); tc.insertText(completion); this->setTextCursor(tc); } QCompleter *ResizingTextEdit::getCompleter() const { return this->completer; } }