Files
Upsilon/apps/shared/expression_field_delegate_app.cpp
Léa Saviot 13ae1d2545 [apps/escher/toolbox] handleEventWithText for all responders.
This makes the code in the various toolbox more generic. The arguments
of the text to insert are each replaced by a Ion::Charset::Empty.
These Empty chars are used to create layouts in ExpressionLayoutFields,
and to compute the position of the cursor in other fields, before being
removed.

Change-Id: Ie81c1e394b06fef2ab801ccff919d6550f70ec30
2018-04-23 17:18:48 +02:00

57 lines
2.2 KiB
C++

#include "expression_field_delegate_app.h"
#include "../i18n.h"
#include "../apps_container.h"
using namespace Poincare;
namespace Shared {
ExpressionFieldDelegateApp::ExpressionFieldDelegateApp(Container * container, Snapshot * snapshot, ViewController * rootViewController) :
TextFieldDelegateApp(container, snapshot, rootViewController),
ExpressionLayoutFieldDelegate()
{
}
bool ExpressionFieldDelegateApp::expressionLayoutFieldShouldFinishEditing(ExpressionLayoutField * expressionLayoutField, Ion::Events::Event event) {
return event == Ion::Events::OK || event == Ion::Events::EXE;
}
bool ExpressionFieldDelegateApp::expressionLayoutFieldDidReceiveEvent(ExpressionLayoutField * expressionLayoutField, Ion::Events::Event event) {
if (expressionLayoutField->isEditing() && expressionLayoutField->expressionLayoutFieldShouldFinishEditing(event)) {
if (!expressionLayoutField->hasText()) {
expressionLayoutField->app()->displayWarning(I18n::Message::SyntaxError);
return true;
}
int bufferSize = 256;
char buffer[bufferSize];
expressionLayoutField->writeTextInBuffer(buffer, bufferSize);
Expression * exp = Expression::parse(buffer);
if (exp != nullptr) {
delete exp;
}
if (exp == nullptr) {
expressionLayoutField->app()->displayWarning(I18n::Message::SyntaxError);
return true;
}
}
if (event == Ion::Events::Var) {
if (!expressionLayoutField->isEditing()) {
expressionLayoutField->setEditing(true);
}
AppsContainer * appsContainer = (AppsContainer *)expressionLayoutField->app()->container();
VariableBoxController * variableBoxController = appsContainer->variableBoxController();
variableBoxController->setExpressionLayoutFieldSender(expressionLayoutField);
expressionLayoutField->app()->displayModalViewController(variableBoxController, 0.f, 0.f, Metric::PopUpTopMargin, Metric::PopUpLeftMargin, 0, Metric::PopUpRightMargin);
return true;
}
return false;
}
Toolbox * ExpressionFieldDelegateApp::toolboxForExpressionLayoutField(ExpressionLayoutField * expressionLayoutField) {
Toolbox * toolbox = container()->mathToolbox();
toolbox->setSender(expressionLayoutField);
return toolbox;
}
}