Class: UI::HtmlDialog

Inherits:
Object
  • Object
show all

Overview

The Ruby HtmlDialog class allows you to create and interact with HTML dialog boxes from Ruby. This is the best way to generate complex, embedded UIs inside SketchUp, but it does generally require HTML and JavaScript expertise.

If your goal is to simple display a website to your users, consider using #openURL, which will show them a web page in their default browser rather than inside a dialog in SketchUp.

The left, top, width, height etc. dimensions of the dialog are in logical units. This means you provide the units as if they where on a monitor with “normal” DPI. The units given will be multiplied by the same factor as returned by scale_factor.

For usage examples, including how to migrate from the old WebDialog class, see github.com/SketchUp/htmldialog-examples.

HtmlDialog uses the following versions of CEF (Chromium Embedded Framework):

SketchUp 2021.1

CEF 88

SketchUp 2019.0

CEF 64

SketchUp 2018.0

CEF 56

SketchUp 2017.0

CEF 52

Version:

  • SketchUp 2017

Constant Summary #

UI::HtmlDialog::STYLE_WINDOW
UI::HtmlDialog::STYLE_DIALOG
UI::HtmlDialog::STYLE_UTILITY
UI::HtmlDialog::CEF_VERSION
UI::HtmlDialog::CHROME_VERSION

Instance Method Summary # collapse

Constructor Details

↑ #initialize(properties) ⇒ HtmlDialog

Note:

Prior to SketchUp 2019 the :width and :height provided is ignored if a :preference_key is also present. To work around this bug on older versions use #set_size after you initialize the dialog.

Note:

Prefix preference_key with something unique to your extension.

Note:

If there is no reference kept to the HtmlDialog object, the window will close once the garbage collection runs. This behavior can be confusing in trivial test code but is usually not a concern in real life scenarios. Typically a persistent reference, e.g. an instance variable, should be kept to bring the dialog to front, rather than creating a duplicate, if the user should request it a second time.

The new method is used to create a new HtmlDialog.

When use_content_size is set to true, width, height, min_width, max width, min_height, max_height will represent the size of the content area of the window. This excludes the titlebar and the window frame. When use_content_size is set to false (the default value), the size dimensions will represent the outer frame size.

The properties hash accepts an optional key style where the value is one of:

UI::HtmlDialog::STYLE_DIALOG

HtmlDialog stays at the top of SketchUp.

UI::HtmlDialog::STYLE_WINDOW

HtmlDialog can go behind SketchUp and doesn't disappear when SketchUp looses focus.

UI::HtmlDialog::STYLE_UTILITY

HtmlDialog is shown with small titlebar and stays on top of SketchUp.

Examples:

With options Hash

dialog = UI::HtmlDialog.new(
{
  :dialog_title => "Dialog Example",
  :preferences_key => "com.sample.plugin",
  :scrollable => true,
  :resizable => true,
  :width => 600,
  :height => 400,
  :left => 100,
  :top => 100,
  :min_width => 50,
  :min_height => 50,
  :max_width =>1000,
  :max_height => 1000,
  :style => UI::HtmlDialog::STYLE_DIALOG
})
dialog.set_url("http://www.sketchup.com")
dialog.show

With keyword style argument

dialog = UI::HtmlDialog.new(
  dialog_title: "Dialog Example",
  preferences_key: "my_name_my_extension_my_dialog",
  scrollable: true,
  resizable: true,
  width: 600,
  height: 400,
  left: 100,
  top: 100,
  min_width: 50,
  min_height: 50,
  max_width: 1000,
  max_height: 1000,
  style: UI::HtmlDialog::STYLE_DIALOG
)
dialog.set_url("https://www.sketchup.com")
dialog.show

Parameters:

  • properties (Hash) —

    A hash containing the initial properties of the newly created dialog.

Options Hash (properties):

  • :dialog_title (String)
  • :preferences_key (String)
  • :scrollable (Boolean)
  • :resizable (Boolean) — default: true
  • :use_content_size (Boolean) — default: false
  • :width (Integer) — default: 250
  • :height (Integer) — default: 250
  • :left (Integer) — default: 0
  • :top (Integer) — default: 0
  • :min_width (Integer) — default: 0
  • :min_height (Integer) — default: 0
  • :max_width (Integer) — default: -1
  • :max_height (Integer) — default: -1
  • :style (Integer) — default: UI::HtmlDialog::STYLE_DIALOG

Version:

  • SketchUp 2017

Instance Method Details

↑ #add_action_callback(callback_name) {|action_context, ...| ... } ⇒ Boolean

Note:

When an HtmlDialog is closed, all callbacks to that instance are cleared. Re-attach them if you need to open the dialog again.

The #add_action_callback method establishes a Ruby callback method that your html dialog can call to perform some function.

Use the sketchup.callback_method_name to invoke the callback method from your html dialog. Your JavaScript in the html dialog will invoke the callback with the same number of arguments.

The call is asynchronous. JavaScript call might return before Ruby callback even called. Use onCompleted callback to get notified for completion.

Basic types such as booleans, numbers, strings, arrays and hashes are automatically converted between Ruby and JavaScript.

Examples:

Ruby Code

dialog.add_action_callback("say") { |action_context, param1, param2|
  puts "JavaScript said #{param1} and #{param2}"
}

JavaScript

sketchup.say('Hello World', 42);

JavaScript with callback

sketchup.say('Hello World', 42, {
  onCompleted: function() {
    console.log('Ruby side done.');
  }
});

Returns true if action added successfully, false otherwise.

Parameters:

  • callback_name (String) —

    The name of the callback method to be invoked from the html dialog.

Yields:

  • (action_context, ...)

Yield Parameters:

  • action_context (Object) —

    action_context Currently unused.

  • ... (Object) —

    The parameters sent from JavaScript.

Returns:

  • (Boolean) —

    true if action added successfully, false otherwise.

Version:

  • SketchUp 2017

↑ #bring_to_front ⇒ nil

The #bring_to_front method is used to bring the window to the front, putting it on top of other windows even if its minimized.

Examples:

dialog.bring_to_front

Returns:

  • (nil)

See Also:

Version:

  • SketchUp 2017

Known Bugs:

  • Prior to SketchUp 2021.1, on Mac, the focus the was not being set on the UI::HtmlDialog.

↑ #center ⇒ true

The #center method is used to center the HtmlDialog relative to the active model window. If there is no active model window, this function doesn't do anything.

Examples:

dialog.center

Returns:

  • (true) —

    This always return true, never false.

Version:

  • SketchUp 2017

↑ #close ⇒ nil

The #close method is used to close a dialog box.

Examples:

dialog.close

Returns:

  • (nil)

Version:

  • SketchUp 2017

↑ #execute_script(script) ⇒ nil

The #execute_script method is used to execute a JavaScript string on the html dialog asynchronously.

Examples:

js_command = "document.getElementById('id').innerHTML = '<b>Hi!</b>'"
dialog.execute_script(js_command)

Parameters:

  • script (String) —

    The JavaScript script to execute on the HtmlDialog.

Returns:

  • (nil)

Version:

  • SketchUp 2017

↑ #get_content_size ⇒ Array(Integer, Integer)?

The #get_content_size method is used to get the content size of the HtmlDialog, in logical pixels.

Examples:

width, height = dialog.get_content_size

Returns:

  • (Array(Integer, Integer), nil) —

    Content width and height of the HtmlDialog. A nil value is returned if the HtmlDialog is not visible.

Version:

  • SketchUp 2021.1

↑ #get_position ⇒ Array(Integer, Integer)?

The #get_position method is used to get the position of the HtmlDialog relative to the screen, in logical pixels.

Examples:

left, top = dialog.get_position

Returns:

  • (Array(Integer, Integer), nil) —

    Left and top position of the dialog. A nil value is returned if the HtmlDialog is not visible.

Version:

  • SketchUp 2021.1

↑ #get_size ⇒ Array(Integer, Integer)?

The #get_size method is used to get the outer frame size of the HtmlDialog, in logical pixels.

Examples:

width, height = dialog.get_size

Returns:

  • (Array(Integer, Integer), nil) —

    Outer frame width and height of the HtmlDialog. A nil value is returned if the HtmlDialog is not visible.

Version:

  • SketchUp 2021.1

↑ #set_can_close ⇒ Boolean

The #set_can_close method is used to attach a block that is executed just before closing, this block has to return a boolean, if the block returns false the close will be canceled.

Examples:

dialog.set_can_close { false }

Yield Returns:

  • (Boolean) —

    Return a boolean to indicate if the dialogs should close.

Returns:

  • (Boolean)

Version:

  • SketchUp 2017

↑ #set_content_size(width, height) ⇒ nil

The #set_content_size method is used to set the content size of the HtmlDialog, in logical pixels.

Examples:

dialog.set_content_size(600, 400)

Parameters:

  • width (Integer) —

    Content width of the HtmlDialog.

  • height (Integer) —

    Content height of the HtmlDialog.

Returns:

  • (nil)

Version:

  • SketchUp 2021.1

↑ #set_file(filename) ⇒ nil

The #set_file method is used to identify a local HTML file to display in the HtmlDialog.

Examples:

dialog.set_file("c:/mypage.html")

Parameters:

  • filename (String) —

    The filename for the HtmlDialog file (HTML file)

Returns:

  • (nil)

Version:

  • SketchUp 2017

↑ #set_html(html_string) ⇒ nil

The #set_html method is used to load a HtmlDialog with a string of provided HTML.

Examples:

html = '<b>Hello world!</b>'
dialog.set_html(html)

Parameters:

  • html_string (String) —

    A string of valid html to display in your HtmlDialog.

Returns:

  • (nil)

Version:

  • SketchUp 2017

↑ #set_on_closed ⇒ Boolean

The #set_on_closed method is used to attach a block that will be executed when a dialog is already in the process of closing, do any last minute operations within this block such as saving the current state.

Examples:

dialog.set_on_closed { save_selection }

Returns:

  • (Boolean)

Version:

  • SketchUp 2017

↑ #set_position(left, top) ⇒ true

The #set_position method is used to set the position of the HtmlDialog relative to the screen, in pixels.

Examples:

dialog.set_position(100, 50)

Parameters:

  • left (Integer) —

    The number of pixels from the left.

  • top (Integer) —

    The number of pixels from the top of the screen.

Returns:

  • (true) —

    This always return true, never false.

Version:

  • SketchUp 2017

Known Bugs:

  • Prior to SketchUp 2021.1, on Windows, calling this method incorrectly set the focus on the UI::HtmlDialog.

↑ #set_size(width, height) ⇒ true

The #set_size method is used to set the outer frame size of the HtmlDialog, in pixels.

Examples:

dialog.set_size(320, 240)

Parameters:

  • width (Integer) —

    Outer frame width of the HtmlDialog.

  • height (Integer) —

    Outer frame height of the HtmlDialog.

Returns:

  • (true) —

    This always return true, never false.

Version:

  • SketchUp 2017

Known Bugs:

  • Prior to SketchUp 2021.1, on Windows, calling this method incorrectly set the focus on the UI::HtmlDialog.

↑ #set_url(url) ⇒ nil

The #set_url method is used to load a HtmlDialog with the content at a specific URL. This method allows you to load web sites in a HtmlDialog.

Examples:

dialog.set_url("https://www.sketchup.com")

Parameters:

  • url (String) —

    The URL for a specific web site.

Returns:

  • (nil)

Version:

  • SketchUp 2017

↑ #show ⇒ nil

The #show method is used to display a non-modal dialog box.

Examples:

dialog.show

Returns:

  • (nil)

Version:

  • SketchUp 2017

↑ #show_modal ⇒ nil

The #show_modal method is used to display a modal dialog box.

Examples:

dialog.show_modal

Returns:

  • (nil)

Version:

  • SketchUp 2017

↑ #visible? ⇒ Boolean

The #visible? method is useful to tell if the dialog is shown and still alive, if the dialog is minimized or not visible on the screen this will still return true.

Examples:

if dialog.visible?
  dialog.bring_to_front
else
  dialog = UI::HtmlDialog.new
  dialog.set_url("https://www.sketchup.com")
  dialog.show
end

Returns:

  • (Boolean) —

    Returns true if the dialog is open.

Version:

  • SketchUp 2017