InputIO::drawCenteredLine() - Code Metrics - Inspection of "WIP: Inputs" - php-school/cli-menu - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#78)

by Aydin

created 2018-04-15 21:02 UTC

InputIO::drawCenteredLine() B

↳ Parent: InputIO

Complexity

Conditions	1
Paths	1

Size

Total Lines	25
Code Lines	16

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	25
rs	8.8571
c	0
b	0
f	0
cc	1
eloc	16
nc	1
nop	3

<?php

namespace PhpSchool\CliMenu\Input;

use PhpSchool\CliMenu\CliMenu;
use PhpSchool\CliMenu\MenuStyle;
use PhpSchool\CliMenu\Terminal\TerminalInterface;
use PhpSchool\CliMenu\Util\StringUtil;

/**
 * @author Aydin Hassan <[email protected]>
 */
class InputIO
{
    /**
     * @var MenuStyle
     */
    private $style;

    /**
     * @var CliMenu
     */
    private $parentMenu;

    /**
     * @var TerminalInterface
     */
    private $terminal;

    /**
     * @var array
     */
    private $inputMap = [
        "\n"   => 'enter',
        "\r"   => 'enter',
        "\177" => 'backspace'
    ];

    /**
     * @var callable[][]
     */
    private $callbacks = [];

    public function __construct(CliMenu $parentMenu, MenuStyle $menuStyle, TerminalInterface $terminal)
    {
        $this->style        = $menuStyle;
        $this->terminal     = $terminal;
        $this->parentMenu   = $parentMenu;
    }

    public function collect(Input $input) : InputResult
    {
        $this->drawInput($input, $input->getPlaceholderText());

        $inputValue = $input->getPlaceholderText();

        while (($userInput = $this->terminal->getKeyedInput($this->inputMap)) !== false) {

            $this->parentMenu->redraw();
            $this->drawInput($input, $inputValue);

            if ($userInput === 'enter') {
                if ($input->validate($inputValue)) {
                    $this->parentMenu->redraw();
                    return new InputResult($inputValue);
                } else {
                    $this->drawInputWithError($input, $inputValue);
                    continue;
                }
            }

            if ($userInput === 'backspace') {
                $inputValue = substr($inputValue, 0, -1);
                $this->drawInput($input, $inputValue);
                continue;
            }

            if (!empty($this->callbacks[$userInput])) {
                foreach ($this->callbacks[$userInput] as $callback) {
                    $inputValue = $callback($this, $inputValue);
                    $this->drawInput($input, $inputValue);
                }
                continue;
            }

            $inputValue .= $userInput;
            $this->drawInput($input, $inputValue);
        }
    }

    public function registerInputMap(string $input, string $mapTo) : void
    {
        $this->inputMap[$input] = $mapTo;
    }

    public function registerControlCallback(string $control, callable $callback) : void
    {
        if (!isset($this->callbacks[$control])) {
            $this->callbacks[$control] = [];
        }

        $this->callbacks[$control][] = $callback;
    }

    private function getInputWidth(array $lines)
    {
        return max(
            array_map(
                function (string $line) {
                    return mb_strlen($line);
                },
                $lines
            )
        );
    }

    private function calculateYPosition(Input $input) : int

    {
        $lines = 5; //1. empty 2. prompt text 3. empty 4. input 5. empty


        return ceil($this->parentMenu->getCurrentFrame()->count() / 2) - ceil($lines /2) + 1;
    }

    private function calculateYPositionWithError() : int
    {
        $lines = 7; //1. empty 2. prompt text 3. empty 4. input 5. empty 6. error 7. empty


        return ceil($this->parentMenu->getCurrentFrame()->count() / 2) - ceil($lines /2) + 1;
    }

    private function calculateXPosition(Input $input, string $userInput) : int
    {
        $width = $this->getInputWidth(
            [
                $input->getPromptText(),
                $input->getValidationFailedText(),
                $userInput
            ]
        );

        $parentStyle     = $this->parentMenu->getStyle();
        $halfWidth       = ($width + ($this->style->getPadding() * 2)) / 2;
        $parentHalfWidth = ceil($parentStyle->getWidth() / 2);

        return $parentHalfWidth - $halfWidth;
    }

    private function drawLine(Input $input, string $userInput, string $text) : void
    {
        $this->terminal->moveCursorToColumn($this->calculateXPosition($input, $userInput));

        printf(
            "%s%s%s%s%s\n",
            $this->style->getUnselectedSetCode(),
            str_repeat(' ', $this->style->getPadding()),
            $text,
            str_repeat(' ', $this->style->getPadding()),
            $this->style->getUnselectedUnsetCode()
        );
    }

    private function drawCenteredLine(Input $input, string $userInput, string $text) : void
    {
        $width = $this->getInputWidth(
            [
                $input->getPromptText(),
                $input->getValidationFailedText(),
                $userInput
            ]
        );

        $textLength = mb_strlen(StringUtil::stripAnsiEscapeSequence($text));
        $leftFill   = ($width / 2) - ($textLength / 2);
        $rightFill  = ceil($width - $leftFill - $textLength);

        $this->drawLine(
            $input,
            $userInput,
            sprintf(
                '%s%s%s',
                str_repeat(' ', $leftFill),
                $text,
                str_repeat(' ', $rightFill)
            )
        );
    }

    private function drawEmptyLine(Input $input, string $userInput) : void
    {
        $width = $this->getInputWidth(
            [
                $input->getPromptText(),
                $input->getValidationFailedText(),
                $userInput
            ]
        );

        $this->drawLine(
            $input,
            $userInput,
            str_repeat(' ', $width)
        );
    }

    private function drawInput(Input $input, string $userInput) : void
    {
        $this->terminal->moveCursorToRow($this->calculateYPosition($input));

        $this->drawEmptyLine($input, $userInput);
        $this->drawTitle($input, $userInput);
        $this->drawEmptyLine($input, $userInput);
        $this->drawInputField($input, $input->format($userInput));
        $this->drawEmptyLine($input, $userInput);
    }

    private function drawInputWithError(Input $input, string $userInput) : void
    {
        $this->terminal->moveCursorToRow($this->calculateYPositionWithError($input));


        $this->drawEmptyLine($input, $userInput);
        $this->drawTitle($input, $userInput);
        $this->drawEmptyLine($input, $userInput);
        $this->drawInputField($input, $input->format($userInput));
        $this->drawEmptyLine($input, $userInput);
        $this->drawCenteredLine(
            $input,
            $userInput,
            sprintf(
                '%s',
                $input->getValidationFailedText()
            )
        );
        $this->drawEmptyLine($input, $userInput);
    }

    private function drawTitle(Input $input, string $userInput) : void
    {

        $this->drawCenteredLine(
            $input,
            $userInput,
            $input->getPromptText()
        );
    }

    private function drawInputField(Input $input, string $userInput) : void
    {
        $this->drawCenteredLine(
            $input,
            $userInput,
            sprintf(
                '%s%s%s%s%s',
                $this->style->getUnselectedUnsetCode(),
                $this->style->getSelectedSetCode(),
                $userInput,
                $this->style->getSelectedUnsetCode(),
                $this->style->getUnselectedSetCode()
            )
        );
    }
}


1			<?php
2
3			namespace PhpSchool\CliMenu\Input;
4
5			use PhpSchool\CliMenu\CliMenu;
6			use PhpSchool\CliMenu\MenuStyle;
7			use PhpSchool\CliMenu\Terminal\TerminalInterface;
8			use PhpSchool\CliMenu\Util\StringUtil;
9
10			/**
11			* @author Aydin Hassan <[email protected]>
12			*/
13			class InputIO
14			{
15			/**
16			* @var MenuStyle
17			*/
18			private $style;
19
20			/**
21			* @var CliMenu
22			*/
23			private $parentMenu;
24
25			/**
26			* @var TerminalInterface
27			*/
28			private $terminal;
29
30			/**
31			* @var array
32			*/
33			private $inputMap = [
34			"\n" => 'enter',
35			"\r" => 'enter',
36			"\177" => 'backspace'
37			];
38
39			/**
40			* @var callable[][]
41			*/
42			private $callbacks = [];
43
44			public function __construct(CliMenu $parentMenu, MenuStyle $menuStyle, TerminalInterface $terminal)
45			{
46			$this->style = $menuStyle;
47			$this->terminal = $terminal;
48			$this->parentMenu = $parentMenu;
49			}
50
51			public function collect(Input $input) : InputResult
52			{
53			$this->drawInput($input, $input->getPlaceholderText());
54
55			$inputValue = $input->getPlaceholderText();
56
57			while (($userInput = $this->terminal->getKeyedInput($this->inputMap)) !== false) {
			0 ignored issues – show Unused Code introduced 2018-04-15 21:05 UTC by Report Bug Copy Issue Report The call to `TerminalInterface::getKeyedInput()` has too many arguments starting with `$this->inputMap`. This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue. If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. In this case you can add the `@ignore` PhpDoc annotation to the duplicate definition and it will be ignored. Loading history...
58			$this->parentMenu->redraw();
59			$this->drawInput($input, $inputValue);
60
61			if ($userInput === 'enter') {
62			if ($input->validate($inputValue)) {
63			$this->parentMenu->redraw();
64			return new InputResult($inputValue);
65			} else {
66			$this->drawInputWithError($input, $inputValue);
67			continue;
68			}
69			}
70
71			if ($userInput === 'backspace') {
72			$inputValue = substr($inputValue, 0, -1);
73			$this->drawInput($input, $inputValue);
74			continue;
75			}
76
77			if (!empty($this->callbacks[$userInput])) {
78			foreach ($this->callbacks[$userInput] as $callback) {
79			$inputValue = $callback($this, $inputValue);
80			$this->drawInput($input, $inputValue);
81			}
82			continue;
83			}
84
85			$inputValue .= $userInput;
86			$this->drawInput($input, $inputValue);
87			}
88			}
89
90			public function registerInputMap(string $input, string $mapTo) : void
91			{
92			$this->inputMap[$input] = $mapTo;
93			}
94
95			public function registerControlCallback(string $control, callable $callback) : void
96			{
97			if (!isset($this->callbacks[$control])) {
98			$this->callbacks[$control] = [];
99			}
100
101			$this->callbacks[$control][] = $callback;
102			}
103
104			private function getInputWidth(array $lines)
105			{
106			return max(
107			array_map(
108			function (string $line) {
109			return mb_strlen($line);
110			},
111			$lines
112			)
113			);
114			}
115
116			private function calculateYPosition(Input $input) : int
			0 ignored issues – show Unused Code introduced 2018-04-15 21:05 UTC by Report Bug Copy Issue Report The parameter `$input` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
117			{
118			$lines = 5; //1. empty 2. prompt text 3. empty 4. input 5. empty
			0 ignored issues – show Unused Code Comprehensibility introduced 2018-04-15 21:05 UTC by Report Bug Copy Issue Report `39%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
119
120			return ceil($this->parentMenu->getCurrentFrame()->count() / 2) - ceil($lines /2) + 1;
121			}
122
123			private function calculateYPositionWithError() : int
124			{
125			$lines = 7; //1. empty 2. prompt text 3. empty 4. input 5. empty 6. error 7. empty
			0 ignored issues – show Unused Code Comprehensibility introduced 2018-04-15 21:05 UTC by Report Bug Copy Issue Report `38%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
126
127			return ceil($this->parentMenu->getCurrentFrame()->count() / 2) - ceil($lines /2) + 1;
128			}
129
130			private function calculateXPosition(Input $input, string $userInput) : int
131			{
132			$width = $this->getInputWidth(
133			[
134			$input->getPromptText(),
135			$input->getValidationFailedText(),
136			$userInput
137			]
138			);
139
140			$parentStyle = $this->parentMenu->getStyle();
141			$halfWidth = ($width + ($this->style->getPadding() * 2)) / 2;
142			$parentHalfWidth = ceil($parentStyle->getWidth() / 2);
143
144			return $parentHalfWidth - $halfWidth;
145			}
146
147			private function drawLine(Input $input, string $userInput, string $text) : void
148			{
149			$this->terminal->moveCursorToColumn($this->calculateXPosition($input, $userInput));
150
151			printf(
152			"%s%s%s%s%s\n",
153			$this->style->getUnselectedSetCode(),
154			str_repeat(' ', $this->style->getPadding()),
155			$text,
156			str_repeat(' ', $this->style->getPadding()),
157			$this->style->getUnselectedUnsetCode()
158			);
159			}
160
161			private function drawCenteredLine(Input $input, string $userInput, string $text) : void
162			{
163			$width = $this->getInputWidth(
164			[
165			$input->getPromptText(),
166			$input->getValidationFailedText(),
167			$userInput
168			]
169			);
170
171			$textLength = mb_strlen(StringUtil::stripAnsiEscapeSequence($text));
172			$leftFill = ($width / 2) - ($textLength / 2);
173			$rightFill = ceil($width - $leftFill - $textLength);
174
175			$this->drawLine(
176			$input,
177			$userInput,
178			sprintf(
179			'%s%s%s',
180			str_repeat(' ', $leftFill),
181			$text,
182			str_repeat(' ', $rightFill)
183			)
184			);
185			}
186
187			private function drawEmptyLine(Input $input, string $userInput) : void
188			{
189			$width = $this->getInputWidth(
190			[
191			$input->getPromptText(),
192			$input->getValidationFailedText(),
193			$userInput
194			]
195			);
196
197			$this->drawLine(
198			$input,
199			$userInput,
200			str_repeat(' ', $width)
201			);
202			}
203
204			private function drawInput(Input $input, string $userInput) : void
205			{
206			$this->terminal->moveCursorToRow($this->calculateYPosition($input));
207
208			$this->drawEmptyLine($input, $userInput);
209			$this->drawTitle($input, $userInput);
210			$this->drawEmptyLine($input, $userInput);
211			$this->drawInputField($input, $input->format($userInput));
212			$this->drawEmptyLine($input, $userInput);
213			}
214
215			private function drawInputWithError(Input $input, string $userInput) : void
216			{
217			$this->terminal->moveCursorToRow($this->calculateYPositionWithError($input));
			0 ignored issues – show Unused Code introduced 2018-04-15 21:05 UTC by Report Bug Copy Issue Report The call to `InputIO::calculateYPositionWithError()` has too many arguments starting with `$input`. This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue. If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. In this case you can add the `@ignore` PhpDoc annotation to the duplicate definition and it will be ignored. Loading history...
218
219			$this->drawEmptyLine($input, $userInput);
220			$this->drawTitle($input, $userInput);
221			$this->drawEmptyLine($input, $userInput);
222			$this->drawInputField($input, $input->format($userInput));
223			$this->drawEmptyLine($input, $userInput);
224			$this->drawCenteredLine(
225			$input,
226			$userInput,
227			sprintf(
228			'%s',
229			$input->getValidationFailedText()
230			)
231			);
232			$this->drawEmptyLine($input, $userInput);
233			}
234
235			private function drawTitle(Input $input, string $userInput) : void
236			{
237
238			$this->drawCenteredLine(
239			$input,
240			$userInput,
241			$input->getPromptText()
242			);
243			}
244
245			private function drawInputField(Input $input, string $userInput) : void
246			{
247			$this->drawCenteredLine(
248			$input,
249			$userInput,
250			sprintf(
251			'%s%s%s%s%s',
252			$this->style->getUnselectedUnsetCode(),
253			$this->style->getSelectedSetCode(),
254			$userInput,
255			$this->style->getSelectedUnsetCode(),
256			$this->style->getUnselectedSetCode()
257			)
258			);
259			}
260			}
261

php-school / cli-menu

Pull Request — master (#78)

InputIO::drawCenteredLine() B

Complexity

Size

Duplication

Importance

Duplication Side-by-Side

Filter issues like