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<?php
/**
* The file that defines the core plugin class
*
* A class definition that includes attributes and functions used across both the
* public-facing side of the site and the admin area.
*
* @link https://kiranpotphode.com/
* @since 1.0.0
*
* @package Easy_Charts
* @subpackage Easy_Charts/includes
*/
/**
* The core plugin class.
*
* This is used to define internationalization, admin-specific hooks, and
* public-facing site hooks.
*
* Also maintains the unique identifier of this plugin as well as the current
* version of the plugin.
*
* @since 1.0.0
* @package Easy_Charts
* @subpackage Easy_Charts/includes
* @author Kiran Potphode <kiranpotphode15@gmail.com>
*/
class Easy_Charts {
/**
* The loader that's responsible for maintaining and registering all hooks that power
* the plugin.
*
* @since 1.0.0
* @access protected
* @var Easy_Charts_Loader $loader Maintains and registers all hooks for the plugin.
*/
protected $loader;
/**
* The unique identifier of this plugin.
*
* @since 1.0.0
* @access protected
* @var string $plugin_name The string used to uniquely identify this plugin.
*/
protected $plugin_name;
/**
* The current version of the plugin.
*
* @since 1.0.0
* @access protected
* @var string $version The current version of the plugin.
*/
protected $version;
/**
* Define the core functionality of the plugin.
*
* Set the plugin name and the plugin version that can be used throughout the plugin.
* Load the dependencies, define the locale, and set the hooks for the admin area and
* the public-facing side of the site.
*
* @since 1.0.0
*/
public function __construct() {
$this->plugin_name = 'easy-charts';
$this->version = '1.2.1';
$this->load_dependencies();
$this->set_locale();
$this->define_admin_hooks();
$this->define_public_hooks();
}
/**
* Load the required dependencies for this plugin.
*
* Include the following files that make up the plugin:
*
* - Easy_Charts_Loader. Orchestrates the hooks of the plugin.
* - Easy_Charts_i18n. Defines internationalization functionality.
* - Easy_Charts_Admin. Defines all hooks for the admin area.
* - Easy_Charts_Public. Defines all hooks for the public side of the site.
*
* Create an instance of the loader which will be used to register the hooks
* with WordPress.
*
* @since 1.0.0
* @access private
*/
private function load_dependencies() {
/**
* The class responsible for orchestrating the actions and filters of the
* core plugin.
*/
require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/class-easy-charts-loader.php';
/**
* The class responsible for defining internationalization functionality
* of the plugin.
*/
require_once plugin_dir_path( dirname( __FILE__ ) ) . 'includes/class-easy-charts-i18n.php';
/**
* The class responsible for defining all actions that occur in the admin area.
*/
require_once plugin_dir_path( dirname( __FILE__ ) ) . 'admin/class-easy-charts-admin.php';
/**
* The class responsible for defining all actions that occur in the public-facing
* side of the site.
*/
require_once plugin_dir_path( dirname( __FILE__ ) ) . 'public/class-easy-charts-public.php';
$this->loader = new Easy_Charts_Loader();
}
/**
* Define the locale for this plugin for internationalization.
*
* Uses the Easy_Charts_i18n class in order to set the domain and to register the hook
* with WordPress.
*
* @since 1.0.0
* @access private
*/
private function set_locale() {
$plugin_i18n = new Easy_Charts_i18n();
$this->loader->add_action( 'plugins_loaded', $plugin_i18n, 'load_plugin_textdomain' );
}
/**
* Register all of the hooks related to the admin area functionality
* of the plugin.
*
* @since 1.0.0
* @access private
*/
private function define_admin_hooks() {
$plugin_admin = new Easy_Charts_Admin( $this->get_plugin_name(), $this->get_version() );
$this->loader->add_action( 'admin_enqueue_scripts', $plugin_admin, 'enqueue_styles' );
$this->loader->add_action( 'admin_enqueue_scripts', $plugin_admin, 'enqueue_scripts' );
$this->loader->add_action( 'init', $plugin_admin, 'init' );
$this->loader->add_action( 'add_meta_boxes', $plugin_admin, 'add_meta_boxes' );
$this->loader->add_action( 'save_post', $plugin_admin, 'easy_charts_save_meta_box_data' );
$this->loader->add_action( 'admin_head', $plugin_admin, 'easy_charts_add_insert_chart_button' );
$this->loader->add_action( 'admin_print_scripts', $plugin_admin, 'admin_print_scripts' );
$this->loader->add_action( 'admin_menu', $plugin_admin, 'add_options_menu' );
}
/**
* Register all of the hooks related to the public-facing functionality
* of the plugin.
*
* @since 1.0.0
* @access private
*/
private function define_public_hooks() {
$plugin_public = new Easy_Charts_Public( $this->get_plugin_name(), $this->get_version() );
$this->loader->add_action( 'wp_enqueue_scripts', $plugin_public, 'enqueue_styles' );
$this->loader->add_action( 'wp_enqueue_scripts', $plugin_public, 'enqueue_scripts' );
$this->loader->add_action( 'init', $plugin_public, 'init' );
$this->loader->add_action( 'wp_ajax_easy_charts_save_chart_data', $plugin_public, 'init' );
$this->loader->add_action( 'wp_ajax_easy_charts_get_published_charts', $plugin_public, 'init' );
}
/**
* Run the loader to execute all of the hooks with WordPress.
*
* @since 1.0.0
*/
public function run() {
$this->loader->run();
}
/**
* The name of the plugin used to uniquely identify it within the context of
* WordPress and to define internationalization functionality.
*
* @since 1.0.0
* @return string The name of the plugin.
*/
public function get_plugin_name() {
return $this->plugin_name;
}
/**
* The reference to the class that orchestrates the hooks with the plugin.
*
* @since 1.0.0
* @return Easy_Charts_Loader Orchestrates the hooks of the plugin.
*/
public function get_loader() {
return $this->loader;
}
/**
* Retrieve the version number of the plugin.
*
* @since 1.0.0
* @return string The version number of the plugin.
*/
public function get_version() {
return $this->version;
}
/**
* Create dropdown of available chart types.
*
* @param array $args An array of arguments to create chart options dropdown.
*
* @access private
* @return string HTML string of output.
*/
private function easy_chart_dropdown( $args = '' ) {
$defaults = array(
'selected' => 0,
'echo' => 1,
'name' => 'ec_dropdown',
'id' => '',
'options' => array(),
'show_option_none' => '',
'show_option_no_change' => '',
'option_none_value' => '',
);
$r = wp_parse_args( $args, $defaults );
$output = '';
// Back-compat with old system where both id and name were based on $name argument.
if ( empty( $r['id'] ) ) {
$r['id'] = $r['name'];
}
if ( ! empty( $r['options'] ) ) {
$output = "<select name='" . esc_attr( $r['name'] ) . "' id='" . esc_attr( $r['id'] ) . "' class='ec-dropdown-select'>\n";
if ( $r['show_option_no_change'] ) {
$output .= "\t<option value=\"-1\" " . selected( $r['selected'], - 1, 0 ) . '>' . $r['show_option_no_change'] . "</option>\n";
}
if ( $r['show_option_none'] ) {
$output .= "\t<option value=\"" . esc_attr( $r['option_none_value'] ) . '" ' . selected( $r['selected'], esc_attr( $r['option_none_value'] ), 0 ) . '>' . $r['show_option_none'] . "</option>\n";
}
foreach ( $r['options'] as $key => $value ) {
$output .= "\t<option value=\"" . esc_attr( $key ) . '" ' . selected( $r['selected'], esc_attr( $key ), 0 ) . '>' . $value . "</option>\n";
}
$output .= "</select>\n";
}
/**
* Filter the HTML output.
*
* @since 1.0.0
*
* @param string $output HTML output.
*/
$html = apply_filters( 'easy_chart_dropdown', $output );
if ( $r['echo'] ) {
echo $html;
}
return $html;
}
/**
* Helper to transpose any two dimensional array.
*
* @since 1.0.0
* @access private
*
* @param array $array An 2D array to transpose.
* @param integer|string|bool $selectkey Key on which transpose the array Optional Default us false.
*
* @return array Transposed array.
*/
private function array_transpose( $array, $selectkey = false ) {
if ( ! is_array( $array ) ) {
return false;
}
$return = array();
foreach ( $array as $key => $value ) {
if ( ! is_array( $value ) ) {
return $array;
}
if ( $selectkey ) {
if ( isset( $value[ $selectkey ] ) ) {
$return[] = $value[ $selectkey ];
}
} else {
foreach ( $value as $key2 => $value2 ) {
$return[ $key2 ][ $key ] = $value2;
}
}
}
return $return;
}
/**
* Get available font Family
*
* @since 1.0.3
*
* @return array Array of font-family.
*/
public function get_font_family_array() {
$font_family = array(
'Arial' => 'Arial',
'Impact' => 'Impact',
'Palatino Linotype' => 'Palatino Linotype',
'Tahoma' => 'Tahoma',
'Century Gothic' => ' Century Gothic',
'Lucida Sans Unicode' => 'Lucida Sans Unicode',
'Arial Black' => 'Arial Black',
'Times New Roman' => 'Times New Roman',
'Arial Narrow' => 'Arial Narrow',
'Verdana' => 'Verdana',
'Lucida Console' => 'Lucida Console',
'Gill Sans' => 'Gill Sans',
'Trebuchet MS' => 'Trebuchet MS',
'Courier New' => 'Courier New',
'Georgia' => 'Georgia',
);
/**
* Filter to add font family.
*
* @since 1.0.3
*
* @param array $font_family Array of font familly.
*/
return apply_filters( 'easy_charts_fonts', $font_family );
}
/**
* Get chart data.
*
* @since 1.0.0
*
* @param integer|null $chart_id ID of chart to retrieve data Default is null.
*
* @return array Array of data.
*/
public function get_ec_chart_data( $chart_id = null ) {
if ( null === $chart_id ) {
return;
}
$ec_chart_data = array();
$ec_chart_categories = array();
$ec_chart_configuration = array();
$ec_chart_type = get_post_meta( $chart_id, '_ec_chart_type', true );
switch ( $ec_chart_type ) {
case 'ec_bar_chart':
$ec_chart_type = 'Bar';
break;
case 'ec_area_chart':
$ec_chart_type = 'Area';
break;
case 'ec_stacked_bar_chart':
$ec_chart_type = 'StackedBar';
break;
case 'ec_stacked_area_chart':
$ec_chart_type = 'StackedArea';
break;
case 'ec_percent_bar_chart':
$ec_chart_type = 'PercentBar';
break;
case 'ec_percent_area_chart':
$ec_chart_type = 'PercentArea';
break;
case 'ec_pie_chart':
$ec_chart_type = 'Pie';
break;
case 'ec_donut_chart':
$ec_chart_type = 'Donut';
break;
case 'ec_step_up_bar_chart':
$ec_chart_type = 'StepUpBar';
break;
case 'ec_waterfall_chart':
$ec_chart_type = 'Waterfall';
break;
case 'ec_line_chart':
$ec_chart_type = 'Line';
break;
case 'ec_polar_area_chart':
$ec_chart_type = 'PolarArea';
break;
default:
$ec_chart_type = 'Bar';
break;
}
$ec_chart_dataset = json_decode( get_post_meta( $chart_id, '_easy_charts_chart_data', true ) );
if ( null === $ec_chart_dataset ) {
return;
}
if ( 'Pie' === $ec_chart_type || 'Donut' === $ec_chart_type || 'PolarArea' === $ec_chart_type || 'StepUpBar' === $ec_chart_type ) {
$ec_chart_dataset = $this->array_transpose( $ec_chart_dataset );
}
$ec_chart_categories = array_shift( $ec_chart_dataset );
array_shift( $ec_chart_categories );
$translated_dataset = array();
foreach ( $ec_chart_categories as $key => $ec_chart_category ) {
$translated_dataset[ $ec_chart_category ] = array();
foreach ( $ec_chart_dataset as $data_key => $data_value ) {
$translated_dataset[ $ec_chart_category ][] = array(
'name' => $data_value[0],
'value' => floatval( $data_value[ $key + 1 ] ),
);
}
}
$ec_chart_graph = $this->ec_get_chart_configuration( $chart_id, 'graph' );
$ec_chart_meta = $this->ec_get_chart_configuration( $chart_id, 'meta' );
$ec_chart_dimension = $this->ec_get_chart_configuration( $chart_id, 'dimension' );
$ec_chart_margin = $this->ec_get_chart_configuration( $chart_id, 'margin' );
$ec_chart_frame = $this->ec_get_chart_configuration( $chart_id, 'frame' );
$ec_chart_axis = $this->ec_get_chart_configuration( $chart_id, 'axis' );
$ec_chart_label = $this->ec_get_chart_configuration( $chart_id, 'label' );
$ec_chart_legend = $this->ec_get_chart_configuration( $chart_id, 'legend' );
$ec_chart_scale = $this->ec_get_chart_configuration( $chart_id, 'scale' );
$ec_chart_tooltip = $this->ec_get_chart_configuration( $chart_id, 'tooltip' );
$ec_chart_caption = $this->ec_get_chart_configuration( $chart_id, 'caption' );
$ec_chart_subcaption = $this->ec_get_chart_configuration( $chart_id, 'subcaption' );
$ec_chart_bar = $this->ec_get_chart_configuration( $chart_id, 'bar' );
$ec_chart_line = $this->ec_get_chart_configuration( $chart_id, 'line' );
$ec_chart_area = $this->ec_get_chart_configuration( $chart_id, 'area' );
$ec_chart_pie = $this->ec_get_chart_configuration( $chart_id, 'pie' );
$ec_chart_donut = $this->ec_get_chart_configuration( $chart_id, 'donut' );
$ec_chart_data = array(
'chart_type' => $ec_chart_type,
'chart_data' => $translated_dataset,
'chart_categories' => $ec_chart_categories,
'chart_configuration' => array(
'graph' => $ec_chart_graph,
'meta' => $ec_chart_meta,
'frame' => $ec_chart_frame,
'axis' => $ec_chart_axis,
'dimension' => $ec_chart_dimension,
'margin' => $ec_chart_margin,
'label' => $ec_chart_label,
'legend' => $ec_chart_legend,
'scale' => $ec_chart_scale,
'tooltip' => $ec_chart_tooltip,
'caption' => $ec_chart_caption,
'subCaption' => $ec_chart_subcaption,
'bar' => $ec_chart_bar,
'line' => $ec_chart_line,
'area' => $ec_chart_area,
'pie' => $ec_chart_pie,
'donut' => $ec_chart_donut,
),
);
/**
* Filter for get data of chart require to render chart.
*
* @since 1.0.3
*
* @param array $ec_chart_data All chart related data.
* @param int $chart_is Chart id.
*/
$ec_chart_data = apply_filters( 'easy_charts_get_chart_data', $ec_chart_data, $chart_id );
return $ec_chart_data;
}
/**
* Render easy chart.
*
* @since 1.0.0
*
* @param integer|null $chart_id Chart id which is to be rendered.
*
* @return string html markup for chart container.
*/
public function ec_render_chart( $chart_id = null ) {
$chart_html = '';
if ( $chart_id ) {
$chart = get_post( $chart_id );
if ( ! empty( $chart ) && 'easy_charts' !== $chart->post_type ) {
return;
}
$ec_chart_data = $this->get_ec_chart_data( $chart_id );
if ( null !== $ec_chart_data ) {
if ( is_admin() ) {
wp_localize_script( 'easy-charts-admin-js', 'ec_chart_data', $ec_chart_data );
} else {
wp_localize_script( 'easy-charts-public-js', 'ec_object_' . $chart_id, $ec_chart_data );
}
}
$chart_html = '<div class="ec-uv-chart-container uv-div-' . $chart_id . '" data-object="ec_object_' . $chart_id . '"></div>';
/**
* Filter to replace html content of chart.
*
* @since 1.0.3
*
* @param string $chart_html HTML of chart to render.
* @param int $chart_id Chart ID.
*/
$chart_html = apply_filters( 'easy_charts_render_chart', $chart_html, $chart_id );
return $chart_html;
}
return $chart_html;
}
/**
* Get chart configuration options.
*
* @since 1.0.0
*
* @param integer|null $chart_id Chart id.
* @param string $meta_key Meta key of configuration.
*
* @return array Array of configuration.
*/
public function ec_get_chart_configuration( $chart_id = null, $meta_key = '' ) {
$ec_chart_option = get_post_meta( $chart_id, '_ec_chart_' . $meta_key, true );
if ( '' === $ec_chart_option ) {
switch ( $meta_key ) {
case 'meta':
$ec_chart_option = array(
'position' => '#uv-div',
'caption' => '',
'subcaption' => '',
'hlabel' => '',
'hsublabel' => '',
'vlabel' => '',
'vsublabel' => '',
'isDownloadable' => 0,
'downloadLabel' => 'Download',
);
break;
case 'graph':
$ec_chart_option = array(
'palette' => 'Brink',
'responsive' => 1,
'bgcolor' => '#ffffff',
'orientation' => 'Horizontal',
'opacity' => 1,
);
break;
case 'dimension':
$ec_chart_option = array(
'width' => 400,
'height' => 400,
);
break;
case 'margin':
$ec_chart_option = array(
'top' => 50,
'bottom' => 150,
'left' => 100,
'right' => 100,
);
break;
case 'frame':
$ec_chart_option = array(
'bgcolor' => '#ffffff',
);
break;
case 'axis':
$ec_chart_option = array(
'opacity' => 0.1,
'ticks' => 8,
'subticks' => 2,
'padding' => 5,
'strokecolor' => '#000000',
'minor' => - 10,
'fontfamily' => 'Arial',
'fontsize' => 11,
'fontweight' => 700,
'showticks' => 1,
'showsubticks' => 1,
'showtext' => 1,
);
break;
case 'label':
$ec_chart_option = array(
'fontfamily' => 'Arial',
'fontsize' => 11,
'fontweight' => 700,
'strokecolor' => '#000000',
'showlabel' => 1,
'precision' => 2,
'prefix' => '',
'suffix' => '',
);
break;
case 'legend':
$ec_chart_option = array(
'position' => 'bottom',
'fontfamily' => 'Arial',
'fontsize' => '11',
'fontweight' => 'normal',
'color' => '#000000',
'strokewidth' => 0.15,
'textmargin' => 15,
'symbolsize' => 10,
'inactivecolor' => '#DDD',
'legendstart' => 0,
'legendtype' => 'categories',
'showlegends' => true,
);
break;
case 'scale':
$ec_chart_option = array(
'type' => 'linear',
'ordinality' => 0.2,
);
break;
case 'tooltip':
$ec_chart_option = array(
'show' => 1,
'format' => '%c [%l] : %v',
);
break;
case 'caption':
$ec_chart_option = array(
'fontfamily' => 'Arial',
'fontsize' => 11,
'fontweight' => 700,
'textdecoration' => 'none',
'strokecolor' => '#000000',
'cursor' => 'pointer',
);
break;
case 'subcaption':
$ec_chart_option = array(
'fontfamily' => 'Arial',
'fontsize' => 11,
'fontweight' => 700,
'textdecoration' => 'none',
'strokecolor' => '#000000',
'cursor' => 'pointer',
);
break;
case 'bar':
$ec_chart_option = array(
'fontfamily' => 'Arial',
'fontsize' => 10,
'fontweight' => 700,
'strokecolor' => 'none',
'textcolor' => '#000000',
);
break;
case 'line':
$ec_chart_option = array(
'interpolation' => 'linear',
);
break;
case 'area':
$ec_chart_option = array(
'interpolation' => 'linear',
'opacity' => 0.2,
'offset' => 'zero',
);
break;
case 'pie':
$ec_chart_option = array(
'fontfamily' => 'Arial',
'fontsize' => 11,
'fontweight' => 700,
'fontvariant' => 'small-caps',
'fontfill' => '#000000',
'strokecolor' => '#ffffff',
'strokewidth' => 1,
);
break;
case 'donut':
$ec_chart_option = array(
'fontfamily' => 'Arial',
'fontsize' => 11,
'fontweight' => 700,
'fontvariant' => 'small-caps',
'fontfill' => '#000000',
'strokecolor' => '#ffffff',
'strokewidth' => 1,
'factor' => 0.4,
);
break;
default:
break;
}
}
/**
* Filter to get configuration options for selected meta key.
*
* @since 1.0.3
*
* @param array $ec_chart_option Chart configuration options.
* @param int $chart_id ID of chart.
* @param string $meta_key Meta key for which to get options.
*/
$ec_chart_option = apply_filters( 'easy_charts_get_chart_configurations', $ec_chart_option, $chart_id, $meta_key );
return $ec_chart_option;
}
/**
* Render input field.
*
* @since 1.0.0
*
* @param string $field_type Type of input field.
* @param string $field_name Name of field to refer in form.
* @param string $field_label Label to display along with input field.
* @param string $field_value Value of input field.
* @param array $field_options Optional array of options for input field.
*/
public function ec_render_field( $field_type, $field_name, $field_label, $field_value, $field_options = array() ) {
switch ( $field_type ) {
case 'text':
?>
<div class="field">
<table>
<tbody>
<tr>
<td class="ec-td-label">
<label><?php echo esc_html( $field_label ); ?> :</label>
</td>
<td class="ec-td-field">
<input type="text" name="<?php echo esc_attr( $field_name ); ?>" value="<?php echo esc_attr( $field_value ); ?>"/>
</td>
</tr>
</tbody>
</table>
</div>
<?php
break;
case 'number':
?>
<div class="field">
<table>
<tbody>
<tr>
<td class="ec-td-label">
<label><?php echo esc_html( $field_label ); ?> :</label>
</td>
<td class="ec-td-field">
<input type="number" name="<?php echo esc_attr( $field_name ); ?>"
min="<?php echo esc_attr( isset( $field_options['min'] ) ? $field_options['min'] : '' ); ?>"
max="<?php echo esc_attr( isset( $field_options['max'] ) ? $field_options['max'] : '' ); ?>"
step="<?php echo esc_attr( isset( $field_options['step'] ) ? $field_options['step'] : '' ); ?>"
value="<?php echo esc_attr( $field_value ); ?>" class="ec-field-number"/>
</td>
</tr>
</tbody>
</table>
</div>
<?php
break;
case 'radio':
?>
<div class="field">
<table>
<tbody>
<tr>
<td class="ec-td-label">
<label><?php echo esc_html( $field_label ); ?> :</label>
</td>
<td class="ec-td-field">
<div class="ec-field-buttonset">
<?php foreach ( $field_options as $key => $value ) { ?>
<input name="<?php echo esc_attr( $field_name ); ?>"
id="<?php echo esc_attr( $field_name . $value ); ?>" type="radio"
value="<?php echo esc_attr( $value ); ?>" <?php checked( $value, $field_value ); ?> />
<label for="<?php echo esc_attr( $field_name . $value ); ?>"><?php echo esc_html( $key ); ?></label>
<?php } ?>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<?php
break;
case 'slider':
?>
<div class="field">
<table>
<tbody>
<tr>
<td class="ec-td-label">
<label><?php echo esc_html( $field_label ); ?> :</label>
</td>
<td class="ec-td-field">
<input type="text" name="<?php echo esc_attr( $field_name ); ?>"
class="ec-field-slider-attach <?php echo esc_attr( $field_name ); ?>" readonly
value="<?php echo esc_attr( $field_value ); ?>"/>
<div class="ec-field-slider" data-attach=".<?php echo esc_attr( $field_name ); ?>"></div>
</td>
</tr>
</tbody>
</table>
</div>
<?php
break;
case 'color-picker':
?>
<div class="field">
<table>
<tbody>
<tr>
<td class="ec-td-label">
<label><?php echo esc_html( $field_label ); ?> :</label>
</td>
<td class="ec-td-field">
<input type="text" name="<?php echo esc_attr( $field_name ); ?>" class="ec-color-picker" value="<?php echo esc_attr( $field_value ); ?>"/>
</td>
</tr>
</tbody>
</table>
</div>
<?php
break;
case 'dropdown':
?>
<div class="field">
<table>
<tbody>
<tr>
<td class="ec-td-label">
<label><?php echo esc_html( $field_label ); ?> :</label>
</td>
<td class="ec-td-field">
<?php
$args = array(
'options' => $field_options,
'selected' => $field_value,
'id' => $field_name,
'name' => $field_name,
'echo' => 1,
);
$this->easy_chart_dropdown( $args );
?>
</td>
</tr>
</tbody>
</table>
</div>
<?php
break;
default:
break;
}
}
}