class Webview::Webview

Defined in:

webview.cr

Constructors

Instance Method Summary

Constructor Detail

def self.new(debug, title) #

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Instance Method Detail

def bind(name : String, fn : JSProc) #

binds a callback function so that it will appear under the given name as a global Javascript function.


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def bind_typed(name : String, t1 : T1.class, t2 : T2.class, t3 : T3.class, &block : T1, T2, T3 -> R) forall T1, T2, T3, R #

Type-safe binding for 3 parameters


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def bind_typed(name : String, t1 : T1.class, t2 : T2.class, &block : T1, T2 -> R) forall T1, T2, R #

Type-safe binding for 2 parameters


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def bind_typed(name : String, t1 : T1.class, &block : T1 -> R) forall T1, R #

Type-safe binding for 1 parameter


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def destroy #

destroys a WebView and closes the native window.


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def dispatch(&f : -> ) #

posts a function to be executed on the main thread. You normally do no need to call this function, unless you want to tweak the native window.


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def eval(js : String) #

evaluates arbitrary Javascript code. Evaluation happens asynchronously, also the result of the expression is ignored. Use RPC bindings if you want to receive notifications about the result of the evaluation.


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def eval_async(js : String, &callback : -> ) #

Evaluates JavaScript asynchronously with a callback


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def eval_with_channel(js : String) : Channel(Nil) #

Evaluates JavaScript and returns result via a channel (fiber-friendly)


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def html=(html : String) #

Set WebView HTML directly


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def init(js : String) #

injects Javascript code at the initialization of the new page. Every time the WebView will open the new page - this initialization code will be executed. It is guaranteed that code is executed before window.onload.


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def native_handle(kind : NativeHandleKind) #

Get a native handle of choice (window, widget, or browser controller)


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def navigate(url) #

navigates WebView to the given URL. URL may be a data URI, i.e. "data:text/text,..". It is often ok not to url-encode it properlty, WebView will re-encode it for you.


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def on_load : Proc(Nil) | Nil #

Lifecycle event callbacks


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def on_load=(on_load : Proc(Nil) | Nil) #

Lifecycle event callbacks


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def on_navigate : Proc(String, Nil) | Nil #

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def on_navigate=(on_navigate : Proc(String, Nil) | Nil) #

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def run #

runs the main loop until it's terminated. After this function exists you must destroy the WebView


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def size(width, height, hint : SizeHints) #

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def terminate #

Terminate stops the main loop. It is safe to call this function from a background thread.


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def title=(val) #

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def unbind(name : String) #

Removes a native Crystal callback that was previously set by #bind.


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def window #

returns a native window handle pointer. When using GTK backend the pointer is GtkWindow pointer, when using Cocoa backend the pointer is NSWindow pointer, when using Win32 backend the pointer is HWND pointer.


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