New `JavaScript.download_buffer` method to create a prompt that let the user download a file.
74 lines
4 KiB
XML
74 lines
4 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<class name="JavaScript" inherits="Object" version="3.4">
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<brief_description>
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Singleton that connects the engine with the browser's JavaScript context in HTML5 export.
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</brief_description>
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<description>
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The JavaScript singleton is implemented only in the HTML5 export. It's used to access the browser's JavaScript context. This allows interaction with embedding pages or calling third-party JavaScript APIs.
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[b]Note:[/b] This singleton can be disabled at build-time to improve security. By default, the JavaScript singleton is enabled. Official export templates also have the JavaScript singleton enabled. See [url=https://docs.godotengine.org/en/3.3/development/compiling/compiling_for_web.html]Compiling for the Web[/url] in the documentation for more information.
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</description>
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<tutorials>
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<link>https://docs.godotengine.org/en/3.3/getting_started/workflow/export/exporting_for_web.html#calling-javascript-from-script</link>
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</tutorials>
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<methods>
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<method name="create_callback">
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<return type="JavaScriptObject">
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</return>
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<argument index="0" name="object" type="Object">
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</argument>
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<argument index="1" name="method" type="String">
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</argument>
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<description>
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Creates a reference to a script function that can be used as a callback by JavaScript. The reference must be kept until the callback happens, or it won't be called at all. See [JavaScriptObject] for usage.
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</description>
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</method>
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<method name="create_object" qualifiers="vararg">
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<return type="Variant">
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</return>
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<argument index="0" name="object" type="String">
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</argument>
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<description>
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Creates a new JavaScript object using the [code]new[/code] constructor. The [code]object[/code] must a valid property of the JavaScript [code]window[/code]. See [JavaScriptObject] for usage.
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</description>
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</method>
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<method name="download_buffer">
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<return type="void">
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</return>
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<argument index="0" name="buffer" type="PoolByteArray">
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</argument>
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<argument index="1" name="name" type="String">
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</argument>
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<argument index="2" name="mime" type="String" default=""application/octet-stream"">
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</argument>
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<description>
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Prompts the user to download a file containing the specified [code]buffer[/code]. The file will have the given [code]name[/code] and [code]mime[/code] type.
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[b]Note:[/b] The browser may override the [url=https://en.wikipedia.org/wiki/Media_type]MIME type[/url] provided based on the file [code]name[/code]'s extension.
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[b]Note:[/b] Browsers might block the download if [method download_buffer] is not being called from a user interaction (e.g. button click).
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[b]Note:[/b] Browsers might ask the user for permission or block the download if multiple download requests are made in a quick succession.
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</description>
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</method>
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<method name="eval">
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<return type="Variant">
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</return>
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<argument index="0" name="code" type="String">
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</argument>
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<argument index="1" name="use_global_execution_context" type="bool" default="false">
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</argument>
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<description>
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Execute the string [code]code[/code] as JavaScript code within the browser window. This is a call to the actual global JavaScript function [code]eval()[/code].
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If [code]use_global_execution_context[/code] is [code]true[/code], the code will be evaluated in the global execution context. Otherwise, it is evaluated in the execution context of a function within the engine's runtime environment.
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</description>
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</method>
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<method name="get_interface">
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<return type="JavaScriptObject">
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</return>
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<argument index="0" name="interface" type="String">
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</argument>
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<description>
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Returns an interface to a JavaScript object that can be used by scripts. The [code]interface[/code] must be a valid property of the JavaScript [code]window[/code]. The callback must accept a single [Array] argument, which will contain the JavaScript [code]arguments[/code]. See [JavaScriptObject] for usage.
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</description>
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</method>
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</methods>
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<constants>
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</constants>
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</class>
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