149 lines
3.8 KiB
PHP
149 lines
3.8 KiB
PHP
<?php
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/**
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* @link http://www.yiiframework.com/
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* @copyright Copyright (c) 2008 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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namespace yii\bootstrap;
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use Yii;
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use yii\helpers\ArrayHelper;
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/**
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* Alert renders an alert bootstrap component.
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*
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* For example,
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*
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* ```php
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* echo Alert::widget([
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* 'options' => [
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* 'class' => 'alert-info',
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* ],
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* 'body' => 'Say hello...',
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* ]);
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* ```
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*
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* The following example will show the content enclosed between the [[begin()]]
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* and [[end()]] calls within the alert box:
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*
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* ```php
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* Alert::begin([
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* 'options' => [
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* 'class' => 'alert-warning',
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* ],
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* ]);
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*
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* echo 'Say hello...';
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*
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* Alert::end();
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* ```
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*
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* @see http://getbootstrap.com/components/#alerts
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* @author Antonio Ramirez <amigo.cobos@gmail.com>
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* @since 2.0
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*/
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class Alert extends Widget
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{
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/**
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* @var string the body content in the alert component. Note that anything between
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* the [[begin()]] and [[end()]] calls of the Alert widget will also be treated
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* as the body content, and will be rendered before this.
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*/
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public $body;
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/**
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* @var array|false the options for rendering the close button tag.
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* The close button is displayed in the header of the modal window. Clicking
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* on the button will hide the modal window. If this is false, no close button will be rendered.
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*
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* The following special options are supported:
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*
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* - tag: string, the tag name of the button. Defaults to 'button'.
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* - label: string, the label of the button. Defaults to '×'.
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*
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* The rest of the options will be rendered as the HTML attributes of the button tag.
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* Please refer to the [Alert documentation](http://getbootstrap.com/components/#alerts)
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* for the supported HTML attributes.
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*/
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public $closeButton = [];
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/**
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* Initializes the widget.
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*/
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public function init()
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{
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parent::init();
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$this->initOptions();
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echo Html::beginTag('div', $this->options) . "\n";
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echo $this->renderBodyBegin() . "\n";
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}
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/**
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* Renders the widget.
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*/
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public function run()
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{
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echo "\n" . $this->renderBodyEnd();
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echo "\n" . Html::endTag('div');
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$this->registerPlugin('alert');
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}
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/**
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* Renders the close button if any before rendering the content.
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* @return string the rendering result
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*/
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protected function renderBodyBegin()
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{
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return $this->renderCloseButton();
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}
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/**
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* Renders the alert body (if any).
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* @return string the rendering result
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*/
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protected function renderBodyEnd()
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{
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return $this->body . "\n";
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}
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/**
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* Renders the close button.
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* @return string the rendering result
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*/
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protected function renderCloseButton()
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{
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if (($closeButton = $this->closeButton) !== false) {
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$tag = ArrayHelper::remove($closeButton, 'tag', 'button');
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$label = ArrayHelper::remove($closeButton, 'label', '×');
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if ($tag === 'button' && !isset($closeButton['type'])) {
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$closeButton['type'] = 'button';
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}
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return Html::tag($tag, $label, $closeButton);
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} else {
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return null;
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}
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}
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/**
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* Initializes the widget options.
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* This method sets the default values for various options.
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*/
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protected function initOptions()
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{
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Html::addCssClass($this->options, ['alert', 'fade', 'in']);
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if ($this->closeButton !== false) {
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$this->closeButton = array_merge([
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'data-dismiss' => 'alert',
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'aria-hidden' => 'true',
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'class' => 'close',
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], $this->closeButton);
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}
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}
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}
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