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yii2
Commit 17807874 by Qiang Xue
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Fixes issue #53: implemented Menu.

parent b703169d
Showing with 136 additions and 131 deletions
apps/bootstrap/protected/views/layouts/main.php
......@@ -23,16 +23,17 @@ $this->registerAssetBundle('app');
<div class="navbar">
<div class="navbar-inner">
<div class="container">
<ul class="nav">
<li><?php echo Html::a('Home', Yii::$app->homeUrl); ?></li>
<li><?php echo Html::a('About', array('/site/about')); ?></li>
<li><?php echo Html::a('Contact', array('/site/contact')); ?></li>
<?php if (Yii::$app->user->isGuest): ?>
<li><?php echo Html::a('Login', array('/site/login')); ?></li>
<?php else: ?>
<li><?php echo Html::a('Logout (' . Html::encode(Yii::$app->user->identity->username) . ')', array('/site/logout')); ?></li>
<?php endif; ?>
</ul>
<?php $this->widget('yii\widgets\Menu', array(
'options' => array('class' => 'nav'),
'items' => array(
array('label' => 'Home', 'url' => array('/site/index')),
array('label' => 'About', 'url' => array('/site/about')),
array('label' => 'Contact', 'url' => array('/site/contact')),
Yii::$app->user->isGuest ?
array('label' => 'Login', 'url' => array('/site/login')) :
array('label' => 'Logout (' . Yii::$app->user->identity->username .')' , 'url' => array('/site/logout')),
),
)); ?>
</div>
</div>
</div>
......
framework/base/Controller.php
......@@ -8,7 +8,6 @@
namespace yii\base;
use Yii;
use yii\helpers\FileHelper;
use yii\helpers\StringHelper;
/**
......
framework/widgets/Menu.php
......@@ -7,10 +7,39 @@
namespace yii\widgets;
use Yii;
use yii\base\Widget;
use yii\helpers\Html;
/**
* Menu displays a multi-level menu using nested HTML lists.
*
* The main property of Menu is [[items]], which specifies the possible items in the menu.
* A menu item can contain sub-items which specify the sub-menu under that menu item.
*
* Menu checks the current route and request parameters to toggle certain menu items
* with active state.
*
* Note that Menu only renders the HTML tags about the menu. It does do any styling.
* You are responsible to provide CSS styles to make it look like a real menu.
*
* The following example shows how to use Menu:
*
* ~~~
* $this->widget('yii\widgets\Menu', array(
* 'items' => array(
* // Important: you need to specify url as 'controller/action',
* // not just as 'controller' even if default acion is used.
* array('label' => 'Home', 'url' => array('site/index')),
* // 'Products' menu item will be selected as long as the route is 'product/index'
* array('label' => 'Products', 'url' => array('product/index'), 'items' => array(
* array('label' => 'New Arrivals', 'url' => array('product/index', 'tag' => 'new')),
* array('label' => 'Most Popular', 'url' => array('product/index', 'tag' => 'popular')),
* )),
* array('label' => 'Login', 'url' => array('site/login'), 'visible' => Yii::app()->user->isGuest),
* ),
* ));
* ~~~
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
......@@ -18,154 +47,133 @@ use yii\helpers\Html;
class Menu extends Widget
{
/**
* @var array list of menu items. Each menu item is specified as an array of name-value pairs.
* Possible option names include the following:
* <ul>
* <li>label: string, optional, specifies the menu item label. When {@link encodeLabel} is true, the label
* will be HTML-encoded. If the label is not specified, it defaults to an empty string.</li>
* <li>url: string or array, optional, specifies the URL of the menu item. It is passed to {@link Html::normalizeUrl}
* to generate a valid URL. If this is not set, the menu item will be rendered as a span text.</li>
* <li>visible: boolean, optional, whether this menu item is visible. Defaults to true.
* This can be used to control the visibility of menu items based on user permissions.</li>
* <li>items: array, optional, specifies the sub-menu items. Its format is the same as the parent items.</li>
* <li>active: boolean, optional, whether this menu item is in active state (currently selected).
* If a menu item is active and {@link activeClass} is not empty, its CSS class will be appended with {@link activeClass}.
* @var array list of menu items. Each menu item should be an array of the following structure:
*
* - label: string, optional, specifies the menu item label. When [[encodeLabels]] is true, the label
* will be HTML-encoded. If the label is not specified, an empty string will be used.
* - url: string or array, optional, specifies the URL of the menu item. It will be processed by [[Html::url]].
* When this is set, the actual menu item content will be generated using [[linkTemplate]];
* otherwise, [[labelTemplate]] will be used.
* - visible: boolean, optional, whether this menu item is visible. Defaults to true.
* - items: array, optional, specifies the sub-menu items. Its format is the same as the parent items.
* - active: boolean, optional, whether this menu item is in active state (currently selected).
* If a menu item is active, its CSS class will be appended with [[activeCssClass]].
* If this option is not set, the menu item will be set active automatically when the current request
* is triggered by {@link url}. Note that the GET parameters not specified in the 'url' option will be ignored.</li>
* <li>template: string, optional, the template used to render this menu item.
* When this option is set, it will override the global setting {@link itemTemplate}.
* Please see {@link itemTemplate} for more details. This option has been available since version 1.1.1.</li>
* <li>linkOptions: array, optional, additional HTML attributes to be rendered for the link or span tag of the menu item.</li>
* <li>itemOptions: array, optional, additional HTML attributes to be rendered for the container tag of the menu item.</li>
* <li>submenuOptions: array, optional, additional HTML attributes to be rendered for the container of the submenu if this menu item has one.
* When this option is set, the {@link submenuHtmlOptions} property will be ignored for this particular submenu.
* This option has been available since version 1.1.6.</li>
* </ul>
* is triggered by [[url]]. For more details, please refer to [[isItemActive()]].
* - template: string, optional, the template used to render the content of this menu item.
* The token `{url}` will be replaced by the URL associated with this menu item,
* and the token `{label}` will be replaced by the label of the menu item.
* If this option is not set, [[linkTemplate]] or [[labelTemplate]] will be used instead.
*/
public $items = array();
/**
* @var string the template used to render an individual menu item. In this template,
* the token "{menu}" will be replaced with the corresponding menu link or text.
* If this property is not set, each menu will be rendered without any decoration.
* This property will be overridden by the 'template' option set in individual menu items via {@items}.
* @since 1.1.1
* @var string the template used to render the body of a menu which is a link.
* In this template, the token `{url}` will be replaced with the corresponding link URL;
* while `{label}` will be replaced with the link text.
* This property will be overridden by the `template` option set in individual menu items via [[items]].
*/
public $linkTemplate = '<a href="{url}">{label}</a>';
/**
* @var string the template used to render the body of a menu which is NOT a link.
* In this template, the token `{label}` will be replaced with the label of the menu item.
* This property will be overridden by the `template` option set in individual menu items via [[items]].
*/
public $itemTemplate;
public $labelTemplate = '{label}';
/**
* @var boolean whether the labels for menu items should be HTML-encoded. Defaults to true.
* @var string the template used to render a list of sub-menus.
* In this template, the token `{items}` will be replaced with the renderer sub-menu items.
*/
public $encodeLabel = true;
public $submenuTemplate = "\n<ul>\n{items}\n</ul>\n";
/**
* @var string the CSS class to be appended to the active menu item. Defaults to 'active'.
* If empty, the CSS class of menu items will not be changed.
* @var boolean whether the labels for menu items should be HTML-encoded.
*/
public $encodeLabels = true;
/**
* @var string the CSS class to be appended to the active menu item.
*/
public $activeCssClass = 'active';
/**
* @var boolean whether to automatically activate items according to whether their route setting
* matches the currently requested route. Defaults to true.
* @since 1.1.3
* matches the currently requested route.
* @see isItemActive
*/
public $activateItems = true;
/**
* @var boolean whether to activate parent menu items when one of the corresponding child menu items is active.
* The activated parent menu items will also have its CSS classes appended with {@link activeCssClass}.
* Defaults to false.
* The activated parent menu items will also have its CSS classes appended with [[activeCssClass]].
*/
public $activateParents = false;
/**
* @var boolean whether to hide empty menu items. An empty menu item is one whose 'url' option is not
* set and which doesn't contain visible child menu items. Defaults to true.
* @var boolean whether to hide empty menu items. An empty menu item is one whose `url` option is not
* set and which has no visible child menu items.
*/
public $hideEmptyItems = true;
/**
* @var array HTML attributes for the menu's root container tag
* @var array the HTML attributes for the menu's container tag.
*/
public $options = array();
/**
* @var array HTML attributes for the submenu's container tag.
*/
public $submenuHtmlOptions = array();
/**
* @var string the HTML element name that will be used to wrap the label of all menu links.
* For example, if this property is set as 'span', a menu item may be rendered as
* &lt;li&gt;&lt;a href="url"&gt;&lt;span&gt;label&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
* This is useful when implementing menu items using the sliding window technique.
* Defaults to null, meaning no wrapper tag will be generated.
* @since 1.1.4
*/
public $linkLabelWrapper;
/**
* @var array HTML attributes for the links' wrap element specified in
* {@link linkLabelWrapper}.
* @since 1.1.13
*/
public $linkLabelWrapperHtmlOptions = array();
/**
* @var string the CSS class that will be assigned to the first item in the main menu or each submenu.
* Defaults to null, meaning no such CSS class will be assigned.
* @since 1.1.4
*/
public $firstItemCssClass;
/**
* @var string the CSS class that will be assigned to the last item in the main menu or each submenu.
* Defaults to null, meaning no such CSS class will be assigned.
* @since 1.1.4
*/
public $lastItemCssClass;
/**
* @var string the CSS class that will be assigned to every item.
* Defaults to null, meaning no such CSS class will be assigned.
* @since 1.1.9
* @var string the route used to determine if a menu item is active or not.
* If not set, it will use the route of the current request.
* @see params
* @see isItemActive
*/
public $itemCssClass;
public $route;
/**
* Initializes the menu widget.
* This method mainly normalizes the {@link items} property.
* If this method is overridden, make sure the parent implementation is invoked.
* @var array the parameters used to determine if a menu item is active or not.
* If not set, it will use `$_GET`.
* @see route
* @see isItemActive
*/
public function init()
{
$route = $this->getController()->getRoute();
$this->items = $this->normalizeItems($this->items, $route, $hasActiveChild);
}
public $params;
/**
* Calls {@link renderMenu} to render the menu.
* Renders the menu.
*/
public function run()
{
if (count($this->items)) {
echo Html::beginTag('ul', $this->options) . "\n";
$this->renderItems($this->items);
echo Html::endTag('ul');
if ($this->route === null && Yii::$app->controller !== null) {
$this->route = Yii::$app->controller->getRoute();
}
if ($this->params === null) {
$this->params = $_GET;
}
$items = $this->normalizeItems($this->items, $hasActiveChild);
echo Html::tag('ul', $this->renderItems($items), $this->options);
}
/**
* Recursively renders the menu items.
* Recursively renders the menu items (without the container tag).
* @param array $items the menu items to be rendered recursively
* @return string the rendering result
*/
protected function renderItems($items)
{
$count = 0;
$n = count($items);
foreach ($items as $item) {
$count++;
$lines = array();
foreach ($items as $i => $item) {
$options = isset($item['itemOptions']) ? $item['itemOptions'] : array();
$class = array();
if ($item['active'] && $this->activeCssClass != '') {
if ($item['active']) {
$class[] = $this->activeCssClass;
}
if ($count === 1 && $this->firstItemCssClass !== null) {
if ($i === 0 && $this->firstItemCssClass !== null) {
$class[] = $this->firstItemCssClass;
}
if ($count === $n && $this->lastItemCssClass !== null) {
if ($i === $n - 1 && $this->lastItemCssClass !== null) {
$class[] = $this->lastItemCssClass;
}
if ($this->itemCssClass !== null) {
$class[] = $this->itemCssClass;
}
if (!empty($class)) {
if (empty($options['class'])) {
$options['class'] = implode(' ', $class);
......@@ -174,51 +182,46 @@ class Menu extends Widget
}
}
echo Html::beginTag('li', $options);
$menu = $this->renderItem($item);
if (isset($this->itemTemplate) || isset($item['template'])) {
$template = isset($item['template']) ? $item['template'] : $this->itemTemplate;
echo strtr($template, array('{menu}' => $menu));
} else {
echo $menu;
if (!empty($item['items'])) {
$menu .= strtr($this->submenuTemplate, array(
'{items}' => $this->renderItems($item['items']),
));
}
if (isset($item['items']) && count($item['items'])) {
echo "\n" . Html::beginTag('ul', isset($item['submenuOptions']) ? $item['submenuOptions'] : $this->submenuHtmlOptions) . "\n";
$this->renderItems($item['items']);
echo Html::endTag('ul') . "\n";
}
echo Html::endTag('li') . "\n";
$lines[] = Html::tag('li', $menu, $options);
}
return implode("\n", $lines);
}
/**
* Renders the content of a menu item.
* Note that the container and the sub-menus are not rendered here.
* @param array $item the menu item to be rendered. Please see {@link items} on what data might be in the item.
* @return string
* @since 1.1.6
* @param array $item the menu item to be rendered. Please refer to [[items]] to see what data might be in the item.
* @return string the rendering result
*/
protected function renderItem($item)
{
if (isset($item['url'])) {
$label = $this->linkLabelWrapper === null ? $item['label'] : Html::tag($this->linkLabelWrapper, $this->linkLabelWrapperHtmlOptions, $item['label']);
return Html::a($label, $item['url'], isset($item['linkOptions']) ? $item['linkOptions'] : array());
$template = isset($item['template']) ? $item['template'] : $this->linkTemplate;
return strtr($template, array(
'{url}' => Html::url($item['url']),
'{label}' => $item['label'],
));
} else {
return Html::tag('span', isset($item['linkOptions']) ? $item['linkOptions'] : array(), $item['label']);
$template = isset($item['template']) ? $item['template'] : $this->labelTemplate;
return strtr($template, array(
'{label}' => $item['label'],
));
}
}
/**
* Normalizes the {@link items} property so that the 'active' state is properly identified for every menu item.
* Normalizes the [[items]] property to remove invisible items and activate certain items.
* @param array $items the items to be normalized.
* @param string $route the route of the current request.
* @param boolean $active whether there is an active child menu item.
* @return array the normalized menu items
*/
protected function normalizeItems($items, $route, &$active)
protected function normalizeItems($items, &$active)
{
foreach ($items as $i => $item) {
if (isset($item['visible']) && !$item['visible']) {
......@@ -228,7 +231,7 @@ class Menu extends Widget
if (!isset($item['label'])) {
$item['label'] = '';
}
if ($this->encodeLabel) {
if ($this->encodeLabels) {
$items[$i]['label'] = Html::encode($item['label']);
}
$hasActiveChild = false;
......@@ -243,7 +246,7 @@ class Menu extends Widget
}
}
if (!isset($item['active'])) {
if ($this->activateParents && $hasActiveChild || $this->activateItems && $this->isItemActive($item, $route)) {
if ($this->activateParents && $hasActiveChild || $this->activateItems && $this->isItemActive($item)) {
$active = $items[$i]['active'] = true;
} else {
$items[$i]['active'] = false;
......@@ -257,19 +260,21 @@ class Menu extends Widget
/**
* Checks whether a menu item is active.
* This is done by checking if the currently requested URL is generated by the 'url' option
* of the menu item. Note that the GET parameters not specified in the 'url' option will be ignored.
* This is done by checking if [[route]] and [[params]] match that specified in the `url` option of the menu item.
* When the `url` option of a menu item is specified in terms of an array, its first element is treated
* as the route for the item and the rest of the elements are the associated parameters.
* Only when its route and parameters match [[route]] and [[params]], respectively, will a menu item
* be considered active.
* @param array $item the menu item to be checked
* @param string $route the route of the current request
* @return boolean whether the menu item is active
*/
protected function isItemActive($item, $route)
protected function isItemActive($item)
{
if (isset($item['url']) && is_array($item['url']) && !strcasecmp(trim($item['url'][0], '/'), $route)) {
if (isset($item['url']) && is_array($item['url']) && trim($item['url'][0], '/') === $this->route) {
unset($item['url']['#']);
if (count($item['url']) > 1) {
foreach (array_splice($item['url'], 1) as $name => $value) {
if (!isset($_GET[$name]) || $_GET[$name] != $value) {
if (!isset($this->params[$name]) || $this->params[$name] != $value) {
return false;
}
}
......
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