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-rw-r--r--library/Icingadb/Widget/StateChange.php133
1 files changed, 133 insertions, 0 deletions
diff --git a/library/Icingadb/Widget/StateChange.php b/library/Icingadb/Widget/StateChange.php
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+++ b/library/Icingadb/Widget/StateChange.php
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+<?php
+
+/* Icinga DB Web | (c) 2020 Icinga GmbH | GPLv2 */
+
+namespace Icinga\Module\Icingadb\Widget;
+
+use ipl\Html\BaseHtmlElement;
+use ipl\Web\Widget\Icon;
+use ipl\Web\Widget\StateBall;
+
+class StateChange extends BaseHtmlElement
+{
+ protected $previousState;
+
+ protected $state;
+
+ protected $previousStateBallSize = StateBall::SIZE_BIG;
+
+ protected $currentStateBallSize = StateBall::SIZE_BIG;
+
+ protected $defaultAttributes = ['class' => 'state-change'];
+
+ protected $tag = 'div';
+
+ /** @var ?Icon Current state ball icon */
+ protected $icon;
+
+ /** @var bool Whether the state is handled */
+ protected $isHandled = false;
+
+ public function __construct(string $state, string $previousState)
+ {
+ $this->previousState = $previousState;
+ $this->state = $state;
+ }
+
+ /**
+ * Set the state ball size for the previous state
+ *
+ * @param string $size
+ *
+ * @return $this
+ */
+ public function setPreviousStateBallSize(string $size): self
+ {
+ $this->previousStateBallSize = $size;
+
+ return $this;
+ }
+
+ /**
+ * Set the state ball size for the current state
+ *
+ * @param string $size
+ *
+ * @return $this
+ */
+ public function setCurrentStateBallSize(string $size): self
+ {
+ $this->currentStateBallSize = $size;
+
+ return $this;
+ }
+
+ /**
+ * Set the current state ball icon
+ *
+ * @param $icon
+ *
+ * @return $this
+ */
+ public function setIcon($icon): self
+ {
+ $this->icon = $icon;
+
+ return $this;
+ }
+
+ /**
+ * Set whether the current state is handled
+ *
+ * @return $this
+ */
+ public function setHandled($isHandled = true): self
+ {
+ $this->isHandled = $isHandled;
+
+ return $this;
+ }
+
+ protected function assemble()
+ {
+ $currentStateBall = (new StateBall($this->state, $this->currentStateBallSize))
+ ->add($this->icon);
+
+ if ($this->isHandled) {
+ $currentStateBall->getAttributes()->add('class', 'handled');
+ }
+
+ $previousStateBall = new StateBall($this->previousState, $this->previousStateBallSize);
+ if ($this->isRightBiggerThanLeft()) {
+ $this->getAttributes()->add('class', 'reversed-state-balls');
+
+ $this->addHtml($currentStateBall, $previousStateBall);
+ } else {
+ $this->addHtml($previousStateBall, $currentStateBall);
+ }
+ }
+
+ protected function isRightBiggerThanLeft(): bool
+ {
+ $left = $this->previousStateBallSize;
+ $right = $this->currentStateBallSize;
+
+ if ($left === $right) {
+ return false;
+ } elseif ($left === StateBall::SIZE_LARGE) {
+ return false;
+ }
+
+ $map = [
+ StateBall::SIZE_BIG => [false, [StateBall::SIZE_LARGE]],
+ StateBall::SIZE_MEDIUM_LARGE => [false, [StateBall::SIZE_BIG, StateBall::SIZE_LARGE]],
+ StateBall::SIZE_MEDIUM => [true, [StateBall::SIZE_TINY, StateBall::SIZE_SMALL]],
+ StateBall::SIZE_SMALL => [true, [StateBall::SIZE_TINY]]
+ ];
+
+ list($negate, $sizes) = $map[$left];
+ $found = in_array($right, $sizes, true);
+
+ return ($negate && ! $found) || (! $negate && $found);
+ }
+}