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package org.openqa.selenium;
import java.util.List;
/**
* Represents an HTML element. Generally, all interesting operations to do with interacting with a
* page will be performed through this interface.
*
* All method calls will do a freshness check to ensure that the element reference is still valid.
* This essentially determines whether or not the element is still attached to the DOM. If this test
* fails, then an {@link org.openqa.selenium.StaleElementReferenceException} is thrown, and all
* future calls to this instance will fail.
*/
public interface WebElement extends SearchContext, TakesScreenshot {
/**
* Click this element. If this causes a new page to load, you
* should discard all references to this element and any further
* operations performed on this element will throw a
* StaleElementReferenceException.
*
* Note that if click() is done by sending a native event (which is
* the default on most browsers/platforms) then the method will
* _not_ wait for the next page to load and the caller should verify
* that themselves.
*
* There are some preconditions for an element to be clicked. The
* element must be visible and it must have a height and width
* greater then 0.
*
* @throws StaleElementReferenceException If the element no
* longer exists as initially defined
*/
void click();
/**
* If this current element is a form, or an element within a form, then this will be submitted to
* the remote server. If this causes the current page to change, then this method will block until
* the new page is loaded.
*
* @throws NoSuchElementException If the given element is not within a form
*/
void submit();
/**
* Use this method to simulate typing into an element, which may set its value.
*
* @param keysToSend character sequence to send to the element
*
* @throws IllegalArgumentException if keysToSend is null
*/
void sendKeys(CharSequence... keysToSend);
/**
* If this element is a text entry element, this will clear the value. Has no effect on other
* elements. Text entry elements are INPUT and TEXTAREA elements.
*
* Note that the events fired by this event may not be as you'd expect. In particular, we don't
* fire any keyboard or mouse events. If you want to ensure keyboard events are fired, consider
* using something like {@link #sendKeys(CharSequence...)} with the backspace key. To ensure
* you get a change event, consider following with a call to {@link #sendKeys(CharSequence...)}
* with the tab key.
*/
void clear();
/**
* Get the tag name of this element. Not the value of the name attribute: will return
* "input" for the element <input name="foo" />.
*
* @return The tag name of this element.
*/
String getTagName();
/**
* Get the value of the given attribute of the element. Will return the current value, even if
* this has been modified after the page has been loaded.
*
*
More exactly, this method will return the value of the property with the given name, if it
* exists. If it does not, then the value of the attribute with the given name is returned. If
* neither exists, null is returned.
*
*
The "style" attribute is converted as best can be to a text representation with a trailing
* semi-colon.
*
*
The following are deemed to be "boolean" attributes, and will return either "true" or null:
*
*
async, autofocus, autoplay, checked, compact, complete, controls, declare, defaultchecked,
* defaultselected, defer, disabled, draggable, ended, formnovalidate, hidden, indeterminate,
* iscontenteditable, ismap, itemscope, loop, multiple, muted, nohref, noresize, noshade,
* novalidate, nowrap, open, paused, pubdate, readonly, required, reversed, scoped, seamless,
* seeking, selected, truespeed, willvalidate
*
*
Finally, the following commonly mis-capitalized attribute/property names are evaluated as
* expected:
*
*
* - If the given name is "class", the "className" property is returned.
*
- If the given name is "readonly", the "readOnly" property is returned.
*
*
* Note: The reason for this behavior is that users frequently confuse attributes and
* properties. If you need to do something more precise, e.g., refer to an attribute even when a
* property of the same name exists, then you should evaluate Javascript to obtain the result
* you desire.
*
* @param name The name of the attribute.
* @return The attribute/property's current value or null if the value is not set.
*/
String getAttribute(String name);
/**
* Determine whether or not this element is selected or not. This operation only applies to input
* elements such as checkboxes, options in a select and radio buttons.
*
* @return True if the element is currently selected or checked, false otherwise.
*/
boolean isSelected();
/**
* Is the element currently enabled or not? This will generally return true for everything but
* disabled input elements.
*
* @return True if the element is enabled, false otherwise.
*/
boolean isEnabled();
/**
* Get the visible (i.e. not hidden by CSS) innerText of this element, including sub-elements,
* without any leading or trailing whitespace.
*
* @return The innerText of this element.
*/
String getText();
/**
* Find all elements within the current context using the given mechanism. When using xpath be
* aware that webdriver follows standard conventions: a search prefixed with "//" will search the
* entire document, not just the children of this current node. Use ".//" to limit your search to
* the children of this WebElement.
* This method is affected by the 'implicit wait' times in force at the time of execution. When
* implicitly waiting, this method will return as soon as there are more than 0 items in the
* found collection, or will return an empty list if the timeout is reached.
*
* @param by The locating mechanism to use
* @return A list of all {@link WebElement}s, or an empty list if nothing matches.
* @see org.openqa.selenium.By
* @see org.openqa.selenium.WebDriver.Timeouts
*/
List findElements(By by);
/**
* Find the first {@link WebElement} using the given method. See the note in
* {@link #findElements(By)} about finding via XPath.
* This method is affected by the 'implicit wait' times in force at the time of execution.
* The findElement(..) invocation will return a matching row, or try again repeatedly until
* the configured timeout is reached.
*
* findElement should not be used to look for non-present elements, use {@link #findElements(By)}
* and assert zero length response instead.
*
* @param by The locating mechanism
* @return The first matching element on the current context.
* @throws NoSuchElementException If no matching elements are found
* @see org.openqa.selenium.By
* @see org.openqa.selenium.WebDriver.Timeouts
*/
WebElement findElement(By by);
/**
* Is this element displayed or not? This method avoids the problem of having to parse an
* element's "style" attribute.
*
* @return Whether or not the element is displayed
*/
boolean isDisplayed();
/**
* Where on the page is the top left-hand corner of the rendered element?
*
* @return A point, containing the location of the top left-hand corner of the element
*/
Point getLocation();
/**
* What is the width and height of the rendered element?
*
* @return The size of the element on the page.
*/
Dimension getSize();
/**
* @return The location and size of the rendered element
*/
Rectangle getRect();
/**
* Get the value of a given CSS property.
* Color values should be returned as rgba strings, so,
* for example if the "background-color" property is set as "green" in the
* HTML source, the returned value will be "rgba(0, 255, 0, 1)".
*
* Note that shorthand CSS properties (e.g. background, font, border, border-top, margin,
* margin-top, padding, padding-top, list-style, outline, pause, cue) are not returned,
* in accordance with the
* DOM CSS2 specification
* - you should directly access the longhand properties (e.g. background-color) to access the
* desired values.
*
* @param propertyName the css property name of the element
* @return The current, computed value of the property.
*/
String getCssValue(String propertyName);
}