HTML5

Namespace: html5 Language: Lua Type: Defold Lua File: script_html5_js.cpp Source: engine/script/src/script_html5_js.cpp

HTML5 platform specific functions.

[icon:html5] The following functions are only available on HTML5 builds, the html5.* Lua namespace will not be available on other platforms.

API

html5.run

Type: FUNCTION Executes the supplied string as JavaScript inside the browser. A call to this function is blocking, the result is returned as-is, as a string. (Internally this will execute the string using the eval() JavaScript function.)

Parameters

• code (string) - Javascript code to run

Returns

• result (string) - result as string

Examples

local res = html5.run("10 + 20") -- returns the string "30"
print(res)
local res_num = tonumber(res) -- convert to number
print(res_num - 20) -- prints 10

html5.set_interaction_listener

Type: FUNCTION Set a JavaScript interaction listener callaback from lua that will be invoked when a user interacts with the web page by clicking, touching or typing. The callback can then call DOM restricted actions like requesting a pointer lock, or start playing sounds the first time the callback is invoked.

Parameters

• callback (function(self)

  nil) - The interaction callback. Pass an empty function or nil if you no longer wish to receive callbacks.

self

object The calling script</dd> </dl>

Examples

local function on_interaction(self)
    print("on_interaction called")
    html5.set_interaction_listener(nil)
end

function init(self)
    html5.set_interaction_listener(on_interaction)
end