edit_expression_controller.h
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#ifndef CALCULATION_EDIT_EXPRESSION_CONTROLLER_H
#define CALCULATION_EDIT_EXPRESSION_CONTROLLER_H
#include <escher.h>
#include <poincare/expression_layout.h>
#include "expression_field.h"
#include "../shared/text_field_delegate.h"
#include "../shared/expression_layout_field_delegate.h"
#include "history_controller.h"
#include "calculation_store.h"
namespace Calculation {
class HistoryController;
/* TODO: implement a split view */
class EditExpressionController : public DynamicViewController, public Shared::TextFieldDelegate, public Shared::ExpressionLayoutFieldDelegate {
public:
EditExpressionController(Responder * parentResponder, HistoryController * historyController, CalculationStore * calculationStore);
void didBecomeFirstResponder() override;
void viewDidDisappear() override;
bool handleEvent(Ion::Events::Event event) override;
void insertTextBody(const char * text);
/* TextFieldDelegate */
bool textFieldDidReceiveEvent(::TextField * textField, Ion::Events::Event event) override;
bool textFieldDidFinishEditing(::TextField * textField, const char * text, Ion::Events::Event event) override;
bool textFieldDidAbortEditing(::TextField * textField) override;
/* ExpressionLayoutFieldDelegate */
bool expressionLayoutFieldDidReceiveEvent(::ExpressionLayoutField * expressionLayoutField, Ion::Events::Event event) override;
bool expressionLayoutFieldDidFinishEditing(::ExpressionLayoutField * expressionLayoutField, Poincare::ExpressionLayout * layout, Ion::Events::Event event) override;
bool expressionLayoutFieldDidAbortEditing(::ExpressionLayoutField * expressionLayoutField) override;
void expressionLayoutFieldDidChangeSize(::ExpressionLayoutField * expressionLayoutField) override;
private:
class ContentView : public View {
public:
ContentView(Responder * parentResponder, TableView * subview, TextFieldDelegate * textFieldDelegate, ExpressionLayoutFieldDelegate * expressionLayoutFieldDelegate);
~ContentView();
ContentView(const ContentView& other) = delete;
ContentView(ContentView&& other) = delete;
ContentView& operator=(const ContentView& other) = delete;
ContentView& operator=(ContentView&& other) = delete;
void reload();
TableView * mainView() { return m_mainView; }
ExpressionField * expressionField() { return &m_expressionField; }
/* View */
int numberOfSubviews() const override { return 2; }
View * subviewAtIndex(int index) override;
void layoutSubviews() override;
private:
static constexpr int k_bufferLength = TextField::maxBufferSize();
TableView * m_mainView;
char m_textBody[k_bufferLength];
Poincare::ExpressionLayout * m_layout;
ExpressionField m_expressionField;
};
View * loadView() override;
void unloadView(View * view) override;
void reloadView();
bool inputViewDidReceiveEvent(Ion::Events::Event event);
bool inputViewDidFinishEditing(const char * text, Poincare::ExpressionLayout * layout);
bool inputViewDidAbortEditing(const char * text);
Shared::TextFieldDelegateApp * textFieldDelegateApp() override;
Shared::ExpressionFieldDelegateApp * expressionFieldDelegateApp() override;
char m_cacheBuffer[Calculation::k_printedExpressionSize];
HistoryController * m_historyController;
CalculationStore * m_calculationStore;
bool m_inputViewHeightIsMaximal;
};
}
#endif