editor_controller.cpp
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#include "editor_controller.h"
#include "menu_controller.h"
#include "script_parameter_controller.h"
#include "variable_box_controller.h"
#include "helpers.h"
#include <apps/code/app.h>
#include <escher/metric.h>
namespace Code {
EditorController::EditorController(MenuController * menuController) :
ViewController(nullptr),
m_textArea(this),
m_menuController(menuController)
{
m_textArea.setDelegate(this);
}
void EditorController::setScript(Script script){
m_textArea.setText(script.editableContent(), script.contentBufferSize());
}
bool EditorController::handleEvent(Ion::Events::Event event) {
if (event == Ion::Events::OK || event == Ion::Events::Back) {
stackController()->pop();
return true;
}
return false;
}
void EditorController::didBecomeFirstResponder() {
app()->setFirstResponder(&m_textArea);
}
void EditorController::viewWillAppear() {
m_textArea.moveCursor(strlen(m_textArea.text() - m_textArea.cursorLocation()));
}
void EditorController::viewDidDisappear() {
m_menuController->scriptContentEditionDidFinish();
}
bool EditorController::textAreaShouldFinishEditing(TextArea * textArea, Ion::Events::Event event) {
return false;
}
bool EditorController::textAreaDidReceiveEvent(TextArea * textArea, Ion::Events::Event event) {
const char * pythonText = Helpers::PythonTextForEvent(event);
if (pythonText != nullptr) {
if (!textArea->insertText(pythonText)) {
return false;
}
if (pythonText[strlen(pythonText)-1] == ')') {
textArea->moveCursor(-1);
}
return true;
}
if (event == Ion::Events::Var) {
VariableBoxController * varBoxController = (static_cast<App *>(textArea->app()))->scriptsVariableBoxController();
varBoxController->setTextAreaCaller(textArea);
textArea->app()->displayModalViewController(varBoxController, 0.f, 0.f, Metric::PopUpTopMargin, Metric::PopUpLeftMargin, 0, Metric::PopUpRightMargin);
return true;
}
if (event == Ion::Events::EXE) {
// Auto-Indent
char * text = const_cast<char *>(textArea->text());
int charBeforeCursorIndex = textArea->cursorLocation()-1;
int indentationSize = 0;
// Indent more if the previous line ends with ':'.
if (charBeforeCursorIndex >= 0 && text[charBeforeCursorIndex] == ':') {
indentationSize += k_indentationSpacesNumber;
}
// Compute the indentation of the current line.
int indentationIndex = charBeforeCursorIndex;
while (indentationIndex >= 0 && text[indentationIndex] != '\n') {
indentationIndex--;
}
if (indentationIndex >= 0) {
indentationIndex++;
while (text[indentationIndex] == ' ') {
indentationSize++;
indentationIndex++;
}
}
textArea->insertText("\n");
for (int i = 0; i < indentationSize; i++) {
textArea->insertText(" ");
}
return true;
}
if (event == Ion::Events::Backspace) {
// If the cursor is on the left of the text of a line,
// backspace one intentation space at a time.
char * text = const_cast<char *>(textArea->text());
int charBeforeCursorIndex = textArea->cursorLocation()-1;
int indentationSize = 0;
while (charBeforeCursorIndex >= 0 && text[charBeforeCursorIndex] == ' ') {
charBeforeCursorIndex--;
indentationSize++;
}
if (charBeforeCursorIndex >= 0 && text[charBeforeCursorIndex] == '\n'
&& indentationSize >= k_indentationSpacesNumber)
{
for (int i = 0; i < k_indentationSpacesNumber; i++) {
textArea->removeChar();
}
return true;
}
} else if (event == Ion::Events::Space) {
// If the cursor is on the left of the text of a line,
// a space triggers an indentation.
char * text = const_cast<char *>(textArea->text());
int charBeforeCursorIndex = textArea->cursorLocation()-1;
while (charBeforeCursorIndex >= 0 && text[charBeforeCursorIndex] == ' ') {
charBeforeCursorIndex--;
}
if (charBeforeCursorIndex >= 0 && text[charBeforeCursorIndex] == '\n') {
for (int i = 0; i < k_indentationSpacesNumber; i++) {
textArea->insertText(" ");
}
return true;
}
}
return false;
}
Toolbox * EditorController::toolboxForTextArea(TextArea * textArea) {
Code::App * codeApp = static_cast<Code::App *>(app());
codeApp->pythonToolbox()->setAction(codeApp->toolboxActionForTextArea());
return codeApp->pythonToolbox();
}
StackViewController * EditorController::stackController() {
return static_cast<StackViewController *>(parentResponder());
}
}