Druid-Extension/docs/modules/druid.drag.html
2020-09-29 23:46:32 +03:00

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<h1>Module <code>druid.drag</code></h1>
<p>Component to handle drag action on node.</p>
<p> Drag have correct handling for multitouch and swap
touched while dragging. Drag will be processed even
the cursor is outside of node, if drag is already started</p>
<h2><a href="#Functions">Functions</a></h2>
<table class="function_list">
<tr>
<td class="name" nowrap><a href="#init">init(node, on_drag_callback)</a></td>
<td class="summary">Drag component constructor</td>
</tr>
<tr>
<td class="name" nowrap><a href="#set_click_zone">set_click_zone(zone)</a></td>
<td class="summary">Strict drag click area.</td>
</tr>
</table>
<h2><a href="#Tables">Tables</a></h2>
<table class="function_list">
<tr>
<td class="name" nowrap><a href="#Events">Events</a></td>
<td class="summary">Component events</td>
</tr>
<tr>
<td class="name" nowrap><a href="#Fields">Fields</a></td>
<td class="summary">Components fields</td>
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<td class="summary">Component style params.</td>
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<h2 class="section-header "><a name="Functions"></a>Functions</h2>
<dl class="function">
<dt>
<a name = "init"></a>
<strong>init(node, on_drag_callback)</strong>
</dt>
<dd>
Drag component constructor
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">node</span>
<span class="types"><span class="type">node</span></span>
GUI node to detect dragging
</li>
<li><span class="parameter">on_drag_callback</span>
<span class="types"><span class="type">function</span></span>
Callback for on<em>drag</em>event(self, dx, dy)
</li>
</ul>
</dd>
<dt>
<a name = "set_click_zone"></a>
<strong>set_click_zone(zone)</strong>
</dt>
<dd>
Strict drag click area. Useful for
restrict events outside stencil node
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">zone</span>
<span class="types"><span class="type">node</span></span>
Gui node
</li>
</ul>
</dd>
</dl>
<h2 class="section-header "><a name="Tables"></a>Tables</h2>
<dl class="function">
<dt>
<a name = "Events"></a>
<strong>Events</strong>
</dt>
<dd>
Component events
<h3>Fields:</h3>
<ul>
<li><span class="parameter">on_touch_start</span>
<span class="types"><span class="type">druid_event</span></span>
(self) Event on touch start
</li>
<li><span class="parameter">on_touch_end</span>
<span class="types"><span class="type">druid_event</span></span>
(self) Event on touch end
</li>
<li><span class="parameter">on_drag_start</span>
<span class="types"><span class="type">druid_event</span></span>
(self) Event on drag start
</li>
<li><span class="parameter">on_drag</span>
<span class="types"><span class="type">druid_event</span></span>
(self, dx, dy) Event on drag progress
</li>
<li><span class="parameter">on_drag_end</span>
<span class="types"><span class="type">druid_event</span></span>
(self) Event on drag end
</li>
</ul>
</dd>
<dt>
<a name = "Fields"></a>
<strong>Fields</strong>
</dt>
<dd>
Components fields
<h3>Fields:</h3>
<ul>
<li><span class="parameter">is_touch</span>
<span class="types"><span class="type">bool</span></span>
Is component now touching
</li>
<li><span class="parameter">is_drag</span>
<span class="types"><span class="type">bool</span></span>
Is component now dragging
</li>
<li><span class="parameter">can_x</span>
<span class="types"><span class="type">bool</span></span>
Is drag component process vertical dragging. Default - true
</li>
<li><span class="parameter">can_y</span>
<span class="types"><span class="type">bool</span></span>
Is drag component process horizontal. Default - true
</li>
<li><span class="parameter">x</span>
<span class="types"><span class="type">number</span></span>
Current touch x position
</li>
<li><span class="parameter">y</span>
<span class="types"><span class="type">number</span></span>
Current touch y position
</li>
<li><span class="parameter">touch_start_pos</span>
<span class="types"><span class="type">vector3</span></span>
Touch start position
</li>
</ul>
</dd>
<dt>
<a name = "Style"></a>
<strong>Style</strong>
</dt>
<dd>
Component style params.
You can override this component styles params in druid styles table
or create your own style
<h3>Fields:</h3>
<ul>
<li><span class="parameter">DRAG_DEADZONE</span>
<span class="types"><span class="type">number</span></span>
Distance in pixels to start dragging
(<em>default</em> 10)
</li>
</ul>
</dd>
</dl>
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<i style="float:right;">Last updated 2020-09-29 23:46:16 </i>
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