ElementHandle
- extends: JSHandle
ElementHandle represents an in-page DOM element. ElementHandles can be created with the Page#query_selector method.
NOTE: The use of ElementHandle is discouraged, use Locator objects and web-first assertions instead.
href_element = page.query_selector("a")
href_element.click
ElementHandle prevents DOM element from garbage collection unless the handle is disposed with JSHandle#dispose. ElementHandles are auto-disposed when their origin frame gets navigated.
ElementHandle instances can be used as an argument in Page#eval_on_selector and Page#evaluate methods.
The difference between the Locator and ElementHandle is that the ElementHandle points to a particular element, while Locator captures the logic of how to retrieve an element.
In the example below, handle points to a particular DOM element on page. If that element changes text or is used by React to render an entirely different component, handle is still pointing to that very DOM element. This can lead to unexpected behaviors.
handle = page.query_selector("text=Submit")
handle.hover
handle.click
With the locator, every time the element
is used, up-to-date DOM element is located in the page using the selector. So in the snippet below, underlying DOM element is going to be located twice.
locator = page.get_by_text("Submit")
locator.hover
locator.click
bounding_box
def bounding_box
This method returns the bounding box of the element, or null
if the element is not visible. The bounding box is
calculated relative to the main frame viewport - which is usually the same as the browser window.
Scrolling affects the returned bounding box, similarly to
Element.getBoundingClientRect. That
means x
and/or y
may be negative.
Elements from child frames return the bounding box relative to the main frame, unlike the Element.getBoundingClientRect.
Assuming the page is static, it is safe to use bounding box coordinates to perform input. For example, the following snippet should click the center of the element.
Usage
box = element_handle.bounding_box
page.mouse.click(
box["x"] + box["width"] / 2,
box["y"] + box["height"] / 2,
)
check
def check(
force: nil,
noWaitAfter: nil,
position: nil,
timeout: nil,
trial: nil)
This method checks the element by performing the following steps:
- Ensure that element is a checkbox or a radio input. If not, this method throws. If the element is already checked, this method returns immediately.
- Wait for actionability checks on the element, unless
force
option is set. - Scroll the element into view if needed.
- Use Page#mouse to click in the center of the element.
- Ensure that the element is now checked. If not, this method throws.
If the element is detached from the DOM at any moment during the action, this method throws.
When all steps combined have not finished during the specified timeout
, this method throws a
TimeoutError
. Passing zero timeout disables this.
click
def click(
button: nil,
clickCount: nil,
delay: nil,
force: nil,
modifiers: nil,
noWaitAfter: nil,
position: nil,
timeout: nil,
trial: nil)
This method clicks the element by performing the following steps:
- Wait for actionability checks on the element, unless
force
option is set. - Scroll the element into view if needed.
- Use Page#mouse to click in the center of the element, or the specified
position
. - Wait for initiated navigations to either succeed or fail, unless
noWaitAfter
option is set.
If the element is detached from the DOM at any moment during the action, this method throws.
When all steps combined have not finished during the specified timeout
, this method throws a
TimeoutError
. Passing zero timeout disables this.
content_frame
def content_frame
Returns the content frame for element handles referencing iframe nodes, or null
otherwise
dblclick
def dblclick(
button: nil,
delay: nil,
force: nil,
modifiers: nil,
noWaitAfter: nil,
position: nil,
timeout: nil,
trial: nil)
This method double clicks the element by performing the following steps:
- Wait for actionability checks on the element, unless
force
option is set. - Scroll the element into view if needed.
- Use Page#mouse to double click in the center of the element, or the specified
position
.
If the element is detached from the DOM at any moment during the action, this method throws.
When all steps combined have not finished during the specified timeout
, this method throws a
TimeoutError
. Passing zero timeout disables this.
NOTE: elementHandle.dblclick()
dispatches two click
events and a single dblclick
event.
dispatch_event
def dispatch_event(type, eventInit: nil)
The snippet below dispatches the click
event on the element. Regardless of the visibility state of the element, click
is dispatched. This is equivalent to calling
element.click().
Usage
element_handle.dispatch_event("click")
Under the hood, it creates an instance of an event based on the given type
, initializes it with
eventInit
properties and dispatches it on the element. Events are composed
, cancelable
and bubble by
default.
Since eventInit
is event-specific, please refer to the events documentation for the lists of initial
properties:
- DeviceMotionEvent
- DeviceOrientationEvent
- DragEvent
- Event
- FocusEvent
- KeyboardEvent
- MouseEvent
- PointerEvent
- TouchEvent
- WheelEvent
You can also specify JSHandle as the property value if you want live objects to be passed into the event:
# note you can only create data_transfer in chromium and firefox
data_transfer = page.evaluate_handle("new DataTransfer()")
element_handle.dispatch_event("dragstart", eventInit: { dataTransfer: data_transfer })
eval_on_selector
def eval_on_selector(selector, expression, arg: nil)
Returns the return value of expression
.
The method finds an element matching the specified selector in the ElementHandles subtree and passes it as a first
argument to expression
. If no elements match the selector, the method throws an error.
If expression
returns a Promise, then ElementHandle#eval_on_selector would wait for the promise to resolve and return its
value.
Usage
tweet_handle = page.query_selector(".tweet")
tweet_handle.eval_on_selector(".like", "node => node.innerText") # => "100"
tweet_handle.eval_on_selector(".retweets", "node => node.innerText") # => "10"
eval_on_selector_all
def eval_on_selector_all(selector, expression, arg: nil)
Returns the return value of expression
.
The method finds all elements matching the specified selector in the ElementHandle's subtree and passes an array of
matched elements as a first argument to expression
.
If expression
returns a Promise, then ElementHandle#eval_on_selector_all would wait for the promise to resolve and return its
value.
Usage
<div class="feed">
<div class="tweet">Hello!</div>
<div class="tweet">Hi!</div>
</div>
feed_handle = page.query_selector(".feed")
feed_handle.eval_on_selector_all(".tweet", "nodes => nodes.map(n => n.innerText)") # => ["hello!", "hi!"]
fill
def fill(value, force: nil, noWaitAfter: nil, timeout: nil)
This method waits for actionability checks, focuses the element, fills it and triggers an input
event after filling. Note that you can pass an empty string to clear the input field.
If the target element is not an <input>
, <textarea>
or [contenteditable]
element, this method throws an error. However, if the element is inside the <label>
element that has an associated control, the control will be filled instead.
To send fine-grained keyboard events, use Locator#press_sequentially.
focus
def focus
Calls focus on the element.
get_attribute
def get_attribute(name)
alias: []
Returns element attribute value.
hover
def hover(
force: nil,
modifiers: nil,
noWaitAfter: nil,
position: nil,
timeout: nil,
trial: nil)
This method hovers over the element by performing the following steps:
- Wait for actionability checks on the element, unless
force
option is set. - Scroll the element into view if needed.
- Use Page#mouse to hover over the center of the element, or the specified
position
.
If the element is detached from the DOM at any moment during the action, this method throws.
When all steps combined have not finished during the specified timeout
, this method throws a
TimeoutError
. Passing zero timeout disables this.
inner_html
def inner_html
Returns the element.innerHTML
.
inner_text
def inner_text
Returns the element.innerText
.
input_value
def input_value(timeout: nil)
Returns input.value
for the selected <input>
or <textarea>
or <select>
element.
Throws for non-input elements. However, if the element is inside the <label>
element that has an associated control, returns the value of the control.
checked?
def checked?
Returns whether the element is checked. Throws if the element is not a checkbox or radio input.
disabled?
def disabled?
Returns whether the element is disabled, the opposite of enabled.
editable?
def editable?
Returns whether the element is editable.
enabled?
def enabled?
Returns whether the element is enabled.
hidden?
def hidden?
Returns whether the element is hidden, the opposite of visible.
visible?
def visible?
Returns whether the element is visible.
owner_frame
def owner_frame
Returns the frame containing the given element.
press
def press(key, delay: nil, noWaitAfter: nil, timeout: nil)
Focuses the element, and then uses Keyboard#down and Keyboard#up.
key
can specify the intended
keyboardEvent.key value or a single character to
generate the text for. A superset of the key
values can be found
here. Examples of the keys are:
F1
- F12
, Digit0
- Digit9
, KeyA
- KeyZ
, Backquote
, Minus
, Equal
, Backslash
, Backspace
, Tab
,
Delete
, Escape
, ArrowDown
, End
, Enter
, Home
, Insert
, PageDown
, PageUp
, ArrowRight
, ArrowUp
, etc.
Following modification shortcuts are also supported: Shift
, Control
, Alt
, Meta
, ShiftLeft
, ControlOrMeta
.
Holding down Shift
will type the text that corresponds to the key
in the upper case.
If key
is a single character, it is case-sensitive, so the values a
and A
will generate different
respective texts.
Shortcuts such as key: "Control+o"
, key: "Control++
or key: "Control+Shift+T"
are supported as well. When specified with the
modifier, modifier is pressed and being held while the subsequent key is being pressed.
query_selector
def query_selector(selector)
The method finds an element matching the specified selector in the ElementHandle's subtree. If no elements match the selector,
returns null
.
query_selector_all
def query_selector_all(selector)
The method finds all elements matching the specified selector in the ElementHandles subtree. If no elements match the selector, returns empty array.
screenshot
def screenshot(
animations: nil,
caret: nil,
mask: nil,
maskColor: nil,
omitBackground: nil,
path: nil,
quality: nil,
scale: nil,
style: nil,
timeout: nil,
type: nil)
This method captures a screenshot of the page, clipped to the size and position of this particular element. If the element is covered by other elements, it will not be actually visible on the screenshot. If the element is a scrollable container, only the currently scrolled content will be visible on the screenshot.
This method waits for the actionability checks, then scrolls element into view before taking a screenshot. If the element is detached from DOM, the method throws an error.
Returns the buffer with the captured screenshot.
scroll_into_view_if_needed
def scroll_into_view_if_needed(timeout: nil)
This method waits for actionability checks, then tries to scroll element into view, unless it is
completely visible as defined by
IntersectionObserver's ratio
.
Throws when elementHandle
does not point to an element
connected to a Document or a ShadowRoot.
See scrolling for alternative ways to scroll.
select_option
def select_option(
element: nil,
index: nil,
value: nil,
label: nil,
force: nil,
noWaitAfter: nil,
timeout: nil)
This method waits for actionability checks, waits until all specified options are present in the <select>
element and selects these options.
If the target element is not a <select>
element, this method throws an error. However, if the element is inside the <label>
element that has an associated control, the control will be used instead.
Returns the array of option values that have been successfully selected.
Triggers a change
and input
event once all the provided options have been selected.
Usage
# single selection matching the value
element_handle.select_option(value: "blue")
# single selection matching both the label
element_handle.select_option(label: "blue")
# multiple selection
element_handle.select_option(value: ["red", "green", "blue"])
select_text
def select_text(force: nil, timeout: nil)
This method waits for actionability checks, then focuses the element and selects all its text content.
If the element is inside the <label>
element that has an associated control, focuses and selects text in the control instead.
set_checked
def set_checked(
checked,
force: nil,
noWaitAfter: nil,
position: nil,
timeout: nil,
trial: nil)
alias: checked=
This method checks or unchecks an element by performing the following steps:
- Ensure that element is a checkbox or a radio input. If not, this method throws.
- If the element already has the right checked state, this method returns immediately.
- Wait for actionability checks on the matched element, unless
force
option is set. If the element is detached during the checks, the whole action is retried. - Scroll the element into view if needed.
- Use Page#mouse to click in the center of the element.
- Ensure that the element is now checked or unchecked. If not, this method throws.
When all steps combined have not finished during the specified timeout
, this method throws a
TimeoutError
. Passing zero timeout disables this.
set_input_files
def set_input_files(files, noWaitAfter: nil, timeout: nil)
alias: input_files=
Sets the value of the file input to these file paths or files. If some of the filePaths
are relative paths, then they
are resolved relative to the current working directory. For empty array, clears the selected files.
For inputs with a [webkitdirectory]
attribute, only a single directory path is supported.
This method expects ElementHandle to point to an
input element. However, if the element is inside the <label>
element that has an associated control, targets the control instead.
tap_point
def tap_point(
force: nil,
modifiers: nil,
noWaitAfter: nil,
position: nil,
timeout: nil,
trial: nil)
This method taps the element by performing the following steps:
- Wait for actionability checks on the element, unless
force
option is set. - Scroll the element into view if needed.
- Use Page#touchscreen to tap the center of the element, or the specified
position
.
If the element is detached from the DOM at any moment during the action, this method throws.
When all steps combined have not finished during the specified timeout
, this method throws a
TimeoutError
. Passing zero timeout disables this.
NOTE: elementHandle.tap()
requires that the hasTouch
option of the browser context be set to true.
text_content
def text_content
Returns the node.textContent
.
type
def type(text, delay: nil, noWaitAfter: nil, timeout: nil)
In most cases, you should use Locator#fill instead. You only need to press keys one by one if there is special keyboard handling on the page - in this case use Locator#press_sequentially.
Focuses the element, and then sends a keydown
, keypress
/input
, and keyup
event for each character in the text.
To press a special key, like Control
or ArrowDown
, use ElementHandle#press.
Usage
uncheck
def uncheck(
force: nil,
noWaitAfter: nil,
position: nil,
timeout: nil,
trial: nil)
This method checks the element by performing the following steps:
- Ensure that element is a checkbox or a radio input. If not, this method throws. If the element is already unchecked, this method returns immediately.
- Wait for actionability checks on the element, unless
force
option is set. - Scroll the element into view if needed.
- Use Page#mouse to click in the center of the element.
- Ensure that the element is now unchecked. If not, this method throws.
If the element is detached from the DOM at any moment during the action, this method throws.
When all steps combined have not finished during the specified timeout
, this method throws a
TimeoutError
. Passing zero timeout disables this.
wait_for_element_state
def wait_for_element_state(state, timeout: nil)
Returns when the element satisfies the state
.
Depending on the state
parameter, this method waits for one of the actionability checks
to pass. This method throws when the element is detached while waiting, unless waiting for the "hidden"
state.
"visible"
Wait until the element is visible."hidden"
Wait until the element is not visible or not attached. Note that waiting for hidden does not throw when the element detaches."stable"
Wait until the element is both visible and stable."enabled"
Wait until the element is enabled."disabled"
Wait until the element is not enabled."editable"
Wait until the element is editable.
If the element does not satisfy the condition for the timeout
milliseconds, this method will throw.
wait_for_selector
def wait_for_selector(selector, state: nil, strict: nil, timeout: nil)
Returns element specified by selector when it satisfies state
option. Returns null
if waiting for hidden
or detached
.
Wait for the selector
relative to the element handle to satisfy state
option (either
appear/disappear from dom, or become visible/hidden). If at the moment of calling the method selector
already
satisfies the condition, the method will return immediately. If the selector doesn't satisfy the condition for the
timeout
milliseconds, the function will throw.
Usage
page.content = "<div><span></span></div>"
div = page.query_selector("div")
# waiting for the "span" selector relative to the div.
span = div.wait_for_selector("span", state: "attached")
NOTE: This method does not work across navigations, use Page#wait_for_selector instead.