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Class: TechnicalInsights

WebComponents. TechnicalInsights

This is a custom HtmlElement (Web Component). The tag name is the following:

<cq-technicalinsights>

This webcomponent activates the Technical Insights plug-in module in a chart.

Attributes

This component observes the following attributes and will change behavior if these attributes are modified:

attribute description
method A function within another web component to call.
classics Sets checkbox value of the Event class "Classic"
short-term Sets checkbox value of the Event class "Short-term"
indicators Sets checkbox value of the Event class "Indicators"
oscillators Sets checkbox value of the Event class "Oscillators"
education Sets checkbox value of the Education input
sbars Sets dropdown value of the Bars input

Emitters

A custom event will be emitted by the component when it is clicked. See CIQ.UI.BaseComponent#emitCustomEvent for details on how to listen for this event. The details of the event contain the following:

property value
emitter this component
cause "useraction"
effect "inputschanged", "enabled", "disabled"
action "click"

cause and action are set only when the effect "inputschanged" is issued as a direct result of clicking on the component.

Setup instructions:

  • Your package must include the module in the plugin directory.
  • In sample-template-advanced.html, un-comment the following line:
    import "./plugins/technicalinsights/components.js";
  • Set the vendor-provided token in the technicalAnalysis object within plugins in chartiq/js/defaultConfiguration.js. See example.
    • If the token is not properly set, the following error will be visible in the browser's console:
      CIQ.TechnicalInsights: No Authorization token (auth) provided

<protected> new TechnicalInsights()

Examples
// Include this in your HTML file. Some templates may already have this configuration setting commented out.
config.plugins.technicalInsights.token = <insert token here>;

Default configuration of the Technical Insights Plugin Object in defaultConfiguration.js.

technicalInsights: {
  container: ".ciq-menu-section .ciq-toggles",
  moduleName: "TCTechnicalInsights",
  lang: "en",
  token: "",
  channel: "channel.technicalinsights",
  toggleMarkup: `
      <cq-toggle class="stx-technicalinsights" member="technicalinsights" reader="Trading Central Technical Insights" icon tooltip="Technical Insights"></cq-toggle>`
};

Use dynamic loading on demand as an alternative to static loading.

config.plugins.technicalInsights.token = ""; // custom token for plugin
config.plugins.technicalInsights.load = () =>
  import("./plugins/technicalinsights/components.js");

Extends

Members

dom :object

Object containing DOM elements of the plugin.

Type:
  • object

initialized :boolean

Whether component has been initialized and the UI loaded.

Type:
  • boolean

stx :CIQ.ChartEngine

Chart Engine

Type:

<static> inputMap :Record.<string, string>

Mapping of input selectors to webcomponent attributes

Type:
  • Record.<string, string>
Since:

  • 9.1.0

<static> markup :string

Default markup for the component's innerHTML, to be used when the component is added to the DOM without any innerHTML.

Type:
  • string

Methods

addClaim()

Claim any keystrokes that come in. Once claimed, any keystrokes that come in are passed to the element. The element can then choose to capture or propagate the keystrokes. This enables an element to capture keystrokes even if it doesn't have mouse focus.

Inherited From:
Overrides:

addDefaultMarkup(component [, markup])

Adds default markup to a web component if the component does not have any child nodes.

Parameters:
Name Type Argument Description
component HTMLElement

The component to which the markup is added.
markup String <optional>

The markup to add to the web component. Unused if the component has a static markup property that specifies the markup; for example, MyComponent.markup.
Since:

  • 7.5.0

Inherited From:
Overrides:

adjustChartArea(pixels)

Use this method to create/remove display space above the chart.

Parameters:
Name Type Description
pixels number

pass a negative number to remove space or a positive number to create space
Examples
// move chart area down 38 pixels tcElement.adjustChartArea(38);
// move chart area up 38 pixels tcElement.adjustChartArea(-38);

channelMergeObject(path, value, stx)

Merges an object in the chart engine communication channel.

Parameters:
Name Type Description
path String

The channel path.
value Object

The value merged to the channel.
stx CIQ.ChartEngine

A reference to the chart engine.
Since:

  • 7.5.0

Inherited From:
Overrides:

channelRead(path [, stx])

Reads the current value in the chart engine communication channel.

Parameters:
Name Type Argument Description
path String

The channel path.
stx CIQ.ChartEngine <optional>

Unused.
Since:

  • 7.5.0

Inherited From:
Overrides:
Returns:

The current value in channel.

Type
*

channelSubscribe(path, cb, stx)

Subscribes to the chart engine messaging channel.

Parameters:
Name Type Description
path *

The channel path.
cb *

A callback invoked upon subscribing and whenever a new message is posted in the channel.
stx CIQ.ChartEngine

A reference to the chart engine.
Since:

  • 7.5.0

Inherited From:
Overrides:
Returns:

A callback invoked when unsubscribing from the channel.

Type
function

channelWrite(path, value, stx)

Writes in the chart engine communication channel.

Parameters:
Name Type Description
path String

The channel path.
value *

The value written to the channel.
stx CIQ.ChartEngine

A reference to the chart engine.
Since:

  • 7.5.0

Inherited From:
Overrides:

checkStudies()

Make sure that required studies are available and inform if they are not.

clickFocusedItem(items, e)

Selects (clicks) the first element in items that has a cq-focused attribute.

Parameters:
Name Type Description
items NodeList

A list of elements that are selectable via keyboard navigation.
e Event

The keystroke event.
Since:

  • 8.3.0

Inherited From:
Overrides:

connectedCallback()

Convenience function that creates an array of injections for the component and sets a variable of node equal to self.

Designed to be used as a helper method for the included WebComponents. A full tutorial on how to work with and customize the WebComponents can be found here: Web Component Interface.

Inherited From:
Overrides:

deactivateItem(item)

Blurs and removes the cq-keyboard-active attribute from item.

Parameters:
Name Type Description
item HTMLElement
Since:

  • 8.4.0

Inherited From:
Overrides:

deactivateOnGrid()

Turn plugin off when returning from a solo mode to a multichart mode.

disconnectedCallback()

Removes all the the injections for a context tag and resets the tag to its default state.

Designed to be used as a helper method for the included WebComponents. A full tutorial on how to work with and customize the WebComponents can be found here: Web Component Interface.

Inherited From:
Overrides:

emitCustomEvent(params)

Emits a custom event from the webcomponent. The event type of the emitted event is determined by the particular user action taken. Up to two events are emitted when this function is executed. The first is an event with the type of action performed, if there is one. For example, events which are spawned without user action will not emit this first event. The second event will have a type derived from the component name. For example, the cq-study-legend component will emit a "StudyLegend" type event. The payload of the event will contain a detail section specifying the component which emitted the event as well as the effect - which more clearly defines the type of action causing the emittance. The detail section may also include custom fields further categorizing the event and providing additional information. These details are documented within the web component's documentation.

Parameters:
Name Type Description
params object
Properties
Name Type Argument Default Description
cause string <optional>

The cause of the event. e.g., useraction, timeout, alert. Defaults to "useraction" if not set and action parameter is set.
effect string <optional>

The effect of the user's action. Required if not provided in detail. e.g., open, help, toggle, select.
action string | null <optional>
 "click"

The action a user performed, if applicable. e.g. click, longpress, drag. Set to null if no user action was performed.
detail Object <optional>
 {}

Optional extra parameters to include in the detail of the Custom Event.
Since:
  • 8.9.0
  • 9.1.0 Changed params object's property names.
Inherited From:
Overrides:

findFocused(items)

Finds the elements in items that have a cq-focused attribute.

Parameters:
Name Type Description
items NodeList

A list of elements that are selectable via keyboard navigation.
Since:

  • 8.3.0

Inherited From:
Overrides:
Returns:

The elements in items that have a cq-focused attribute, or an empty array if no elements are found.

Type
array

findKeyboardActive(items)

Finds the elements in items that have a cq-keyboard-active attribute.

Parameters:
Name Type Description
items NodeList

A list of elements that are selectable via keyboard navigation
Since:

  • 8.4.0

Inherited From:
Overrides:
Returns:

The elements in items that have a cq-keyboard-active attribute, or an empty array if no elements are found.

Type
Array

focusItem(item)

Adds a cq-focused attribute to item and highlights item.

Parameters:
Name Type Description
item HTMLElement

Element that receives keyboard focus and is highlighted.
Since:

  • 8.3.0

Inherited From:
Overrides:

focusNextItem(items [, reverse] [, loop])

Focuses the next item in the tab order.

Locates the first element in items that has a cq-focused attribute. If an element is found, the attribute is removed from all elements in items, and cq-focused is applied to the element that follows (in the tab order) the element that was found.

If no elements are found with the cq-focused attribute, the attribute is applied to the first element in items (last element if reverse is true). If the last element in items (first element if reverse is true) is found to have the cq-focused attribute, focus remains on that element. Unless loop is set to true, then focus is applied to first element.

Parameters:
Name Type Argument Description
items NodeList

A list of elements that are selectable via keyboard navigation.
reverse boolean <optional>

If true, the operation is performed in reverse order; that is, from the last element in items to the first.
loop boolean <optional>

Loops back to the first item if the last element in items is selected.
Since:

  • 8.4.0 Added loop parameter. Return element, instead of true, if focus is changed.

Inherited From:
Overrides:
See:
Returns:

The newly focused element if a cq-focused attribute has changed.

Type
HTMLElement | undefined

getChartContainer( [el])

Searches the DOM for the chart container element. Begins the search with el (or this) and proceeds parent-by-parent up the ancestry tree until an element is found.

Parameters:
Name Type Argument Description
el HTMLElement <optional>

The element on which to start the search. If not provided, this is used.
Since:

  • 7.5.0

Inherited From:
Overrides:
Returns:

The chart container element or undefined if an element is not found.

Type
HTMLElement | undefined

getContextContainer( [el])

Searches the DOM for the chart context element. Begins the search with el (or this if el is not provided) and proceeds up the ancestry tree until an element is found or the root of the tree has been reached.

Parameters:
Name Type Argument Description
el HTMLElement <optional>

The element on which to start the search. If not provided, this is used.
Since:

  • 7.5.0

Inherited From:
Overrides:
Returns:

The chart context element or undefined if an element is not found.

Type
HTMLElement | undefined

initialize()

Create and add DOM to chart for this plugin.

inputEntry(node, cb)

Attaches a keyboard input entry event.

Parameters:
Name Type Description
node HTMLElement

The element to which the input entry event is attached.
cb function

The callback function invoked when input entry occurs.
Inherited From:
Overrides:

notifyChannel(pixelChange)

Notify panel size change in channel

Parameters:
Name Type Description
pixelChange number

Change in pixels
Returns:
Type
boolean

notifyEvent(action)

Broadcast an event from the component.

Parameters:
Name Type Description
action string

qs(path, context)

Adapts the querySelector method.

Parameters:
Name Type Description
path String

The CSS selectors for which to search.
context HTMLElement | String

The chart context element, which is the starting point of the DOM query, or "thisChart" to indicate the chart context in which this function is called.
Since:

  • 7.5.0

Inherited From:
Overrides:
Returns:

The selected DOM element or undefined if an element is not found.

Type
HTMLElement | undefined

qsa(path, root, bustShadowRoots)

Adapts the querySelectorAll method. Returns an array instead of a node list to enable chaining of the array map, filter, forEach, and reduce functions.

Parameters:
Name Type Description
path String

The CSS selectors to find.
root HTMLElement | String

The root element, which is the starting point of the DOM query, or "thisChart" to indicate the chart context in which this function is called.
bustShadowRoots boolean

Set to true to penetrate shadow root boundaries.
Since:
  • 7.5.0
  • 8.9.0 Added bustShadowRoots parameter
Inherited From:
Overrides:
Returns:

An array of selected DOM element.

Type
Array.<HTMLElement>

registerLookupDriver()

Registers the lookupExchange method on the TechnicalInsights controller. We do this because the exchange (exchDisp) field is not set under all circumstances but is required for the plugin. By registering the lookup driver to a controller method, it becomes possible for the controller to execute symbol lookups for any symbols that do not have an exchange set.

removeClaim()

Remove a claim on keystrokes.

Inherited From:
Overrides:

removeFocused(items)

Removes the cq-focused attribute from all elements in items.

Parameters:
Name Type Description
items NodeList

A list of elements that are selectable via keyboard navigation.
Since:

  • 8.3.0

Inherited From:
Overrides:

run()

Start the plugin by fetching remote data.

setContext(context)

Called for a registered component when the context is constructed. Sets the context property of the component.

Parameters:
Name Type Description
context CIQ.UI.Context

The chart user interface context.
Overrides:

setContextHolder()

Stores the component in the context holder (an array associated with the cq-context element) so that when the context is started, it knows that this tag is contextual.

Designed to be used as a helper method for the included WebComponents. A full tutorial on how to work with and customize the WebComponents can be found here: Web Component Interface.

Inherited From:
Overrides:

setInput(name, value)

Sets input field to a value.

Parameters:
Name Type Description
name string

Input field name
value object

Value to set input field to

subscribeToActivation(context)

Connects to channel to observe enabling/disabling of plugin. Called by setContext().

Parameters:
Name Type Description
context CIQ.UI.Context

The chart user interface context.

switchContext(context)

Change to another context.

Parameters:
Name Type Description
context CIQ.UI.Context

The chart user interface context.

trimInnerHTMLWhitespace()

Returns a copy of the innerHTML of an element, with leading and trailing characters stripped. The following characters are stripped: newline, carriage return, tab.

Since:

  • 9.1.0

Inherited From:
Overrides:
Returns:

Trimmed innerHTML

Type
String

update( [inputsChanged])

Update input field and reload plugin.

Parameters:
Name Type Argument Description
inputsChanged boolean <optional>

True if user interaction caused the input field value change.