svgWidget

geo.gui. svgWidget

new svgWidget(arg) → {geo.gui.svgWidget}

Description:

  • Create a new instance of class geo.gui.svgWidget.

    Due to the nature of d3 creating DOM elements as it inserts them, calls to appendChild don't appear in this widget.

    The canvas of an svgWidget always refers to the actual svg element. The parentCanvas can refer to another widget's svg element, dom element, or the UI layer's dom element. See geo.gui.widget#parentCanvas.

Source:
Parameters:
Name Type Description
arg geo.gui.widget.spec

Options for the widget.
Returns:
Type
geo.gui.svgWidget

Extends

Members

idle

Description:

  • Getter for the idle state. Read only.

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Inherited From:
Properties:
Name Type Description
idle boolean

true if the object is idle (onIdle would call a handler immediately).

Getter for the idle state. Read only.

Methods

addChild(child) → {this}

Description:

  • Add a child (or an array of children) to the object.

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Inherited From:
Parameters:
Name Type Description
child geo.object | Array.<geo.object>

A child object or array of child objects.
Returns:
Type
this

addPromise(promise) → {this}

Description:

  • Add the promise here and also propagate up the scene tree.

Source:
Inherited From:
Parameters:
Name Type Description
promise Promise

A promise object.
Returns:
Type
this

canvas(valopt) → {HTMLElement|this}

Description:

  • Get/Set the canvas for the widget.

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Inherited From:
Parameters:
Name Type Attributes Description
val HTMLElement <optional>

If specified, set the canvas, otherwise get the canvas.
Returns:

If getting the canvas, return the current value; otherwise, return this widget.

Type
HTMLElement | this

children() → {Array.<geo.object>}

Description:

  • Get an array of the child objects.

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Inherited From:
Returns:

A copy of the array of child objects.

Type
Array.<geo.object>

draw(arg) → {this}

Description:

  • Force redraw of a scene object, to be implemented by subclasses. Base class just calls draw of child objects.

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Inherited From:
Parameters:
Name Type Description
arg object

Options to pass to the child draw functions.
Returns:
Type
this

geoIsOn(event, handleropt) → {boolean}

Description:

  • Report if an event handler is bound to this object.

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Parameters:
Name Type Attributes Description
event string | Array.<string>

An event or list of events to check.
handler function <optional>

A function that might be bound. If undefined, this will report true if there is any handler for the specified event.
Returns:

true if any of the specified events are bound to the specified handler.

Type
boolean

geoOff(eventopt, argopt, nullable) → {this}

Description:

  • Remove handlers from one event or an array of events. If no event is provided all handlers will be removed.

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Parameters:
Name Type Attributes Description
event string | Array.<string> <optional>

An event or a list of events from geo.event or defined by the user, or undefined to remove all events (in which case arg is ignored).
arg function | Array.<function()> <optional>
<nullable>

A function or array of functions to remove from the events or a falsy value to remove all handlers from the events.
Returns:
Type
this

geoOn(event, handler) → {this}

Description:

  • Bind an event handler to this object.

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Inherited From:
Parameters:
Name Type Description
event string

An event from geo.event or a user-defined value.
handler function

A function that is called when event is triggered. The function is passed a geo.event object.
Returns:
Type
this

geoOnce(event, handler) → {function}

Description:

  • Bind an event handler to this object that will fire once and then deregister itself.

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Inherited From:
Parameters:
Name Type Description
event string

An event from geo.event or a user-defined value.
handler function

A function that is called when event is triggered. The function is passed a geo.event object.
Returns:

The actual bound handler. This is a wrapper around the handler that was passed to the function.

Type
function

geoTrigger(event, args, childrenOnlyopt) → {this}

Description:

  • Trigger an event (or events) on this object and call all handlers.

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Parameters:
Name Type Attributes Description
event string

The event to trigger.
args object

Arbitrary argument to pass to the handler.
childrenOnly boolean <optional>

If truthy, only propagate down the tree.
Returns:
Type
this

isInViewport() → {boolean}

Description:

  • Report if the top left of widget (or its current x, y position) is within the viewport.

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Returns:

True if the widget is within the viewport.

Type
boolean

layer() → {geo.layer}

Description:

  • Return the layer associated with this widget.

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Inherited From:
Returns:
Type
geo.layer

modified() → {this}

Description:

  • Update the timestamp to the next global timestamp value.

Source:
Inherited From:
Returns:
Type
this

onIdle(handler) → {this}

Description:

  • Bind a handler that will be called one time when all internal promises are resolved. If there are no outstanding promises, this is invoked synchronously.

Source:
Inherited From:
Parameters:
Name Type Description
handler function

A function taking no arguments.
Returns:
Type
this

parent(argopt) → {this|geo.sceneObject}

Description:

  • Get/set parent of the object.

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Parameters:
Name Type Attributes Description
arg geo.sceneObject <optional>

The new parent or undefined to get the current parent.
Returns:
Type
this | geo.sceneObject

parentCanvas() → {HTMLElement}

Description:

  • Get the parent canvas (top level widgets define their layer as their parent canvas).

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Returns:

The canvas of the widget's parent.

Type
HTMLElement

position(posopt, actualValueopt) → {geo.gui.widget.position|this}

Description:

  • Get or set the CSS positioning that a widget should be placed at.

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Parameters:
Name Type Attributes Description
pos geo.gui.widget.position <optional>

If unspecified, return the current position. Otherwise, set the current position.
actualValue boolean <optional>

If getting the position, if this is truthy, always return the stored value, not a value adjusted for display.
Returns:

Either the position or the widget instance. If this is the position and actualValue is falsy, positions that specify an explicit x and y parameter will be converted to a value that can be used by the display css.

Type
geo.gui.widget.position | this

removeChild(child) → {this}

Description:

  • Remove a child (or array of children) from the object.

Source:
Inherited From:
Parameters:
Name Type Description
child geo.object | Array.<geo.object>

A child object or array of child objects.
Returns:
Type
this

removePromise(promise) → {this}

Description:

  • Remove the promise here and also propagate up the scene tree.

Source:
Inherited From:
Parameters:
Name Type Description
promise Promise

A promise object.
Returns:
Type
this

reposition(positionopt) → {this}

Description:

  • Repositions a widget.

Source:
Inherited From:
Parameters:
Name Type Attributes Description
position geo.gui.widget.position <optional>

The new position for the widget. undefined uses the stored position value.
Returns:
Type
this

repositionEvent() → {this}

Description:

  • If the position is based on map coordinates, this gets called when the map is panned to resposition the widget.

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Inherited From:
Returns:
Type
this

timestamp() → {number}

Description:

  • Get time.

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Returns:

The timestamp. This is 0 if the timestamp has never been modified.

Type
number