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plugin_building_a_plugin.md

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Plugin: Building a Plugin

3 steps to build a plugin:

  • create an vConsole plugin object
  • bind plugin events to this object
  • add this object to vConsole

1. Create plugin object

Make sure you have imported vConsole, then simply new an instance of class VConsolePlugin:

vConsole.VConsolePlugin(id, name)
  • id (required) is an unique string.
  • name (optional) is a string used for tab's display name.

Example:

var myPlugin = new vConsole.VConsolePlugin('my_plugin', 'My Plugin');

2. Bind plugin events

While installing and running a plugin, vConsole will trigger some events to allow a plugin customizing it's functions.

use .on() to bind an event:

on(eventName, callback)
  • eventName (required) is a string.
  • callback (required) is a callback function when an event is triggered.

Example:

myPlugin.on('init', function() {
	console.log('My plugin init');
});

See Event List to learn more about each event.

In this tutorial, we'd like to build a plugin with a tab and a tool button.

To add a tab, use renderTab event:

myPlugin.on('renderTab', function(callback) {
	var html = '<div>Click the tool button below!</div>';
	callback(html);
});

renderTab will be triggered while a plugin is being initialized. We simply pass a HTML string to callback, then this HTML will be rendered as the content of a new tab, which name is name.

To add a tool button, use `addTool event:

myPlugin.on('addTool', function(callback) {
	var button = {
		name: 'Reload',
		onClick: function(event) {
			location.reload();
		}
	};
	callback([button]);
});

Again, addTool will be triggered during initialized, after renderTab. It's callback receives an array of tool button list. We make a button which can reload the current page.

3. Add to vConsole

The final step is add your new plugin to vConsole:

vConsole.addPlugin(pluginObject)

pluginObject (required) is an VConsolePlugin object.

Example:

vConsole.addPlugin(myPlugin);

Make sure you have finish binding all necessary events to your plugin before adding to vConsole. Some events (related to initialization) would not be trigger for second time after adding.

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