In this section:
- Before you start
- Configuring the Live Edit update policy in the debugging mode
- Live Editing during a debugging session
Elements tab of the Debug tool window.
Currently the Live Edit functionality is supported only for Google Chrome and only during a debugging session.
Before you start
- Install and enable the LiveEdit plugin. The plugin is not bundled with IntelliJ IDEA, but it can be installed from the JetBrains plugin repository as described in Installing, Updating and Uninstalling Repository Plugins and Enabling and Disabling Plugins.
- Make sure the JetBrains Chrome Extension is installed in your Chrome browser, see Installing JetBrains Chrome extension.
Configuring the Live Edit update policy in the debugging mode
In the debugging mode, IntelliJ IDEA provides the Live Edit functionality which supports both automatic and manual upload of updated files on the server side. For the client side, Live Edit does not provide any way to apply the changes.
To configure the Live Edit update policy in the debugging mode
- Open the Settings / Preferences Dialog by pressing Ctrl+Alt+S or by choosing for Windows and Linux or for macOS. Expand the Debugger node under Build, Execution, Deployment, and then click Live Edit. The Live Edit page opens.
- In the Update area, configure the way changes made to the code during a debugging session are applied. Note that an update will now be performed only if none of the modified files have any syntax errors.
- Auto in (ms): Choose this option to have the changes applied automatically at certain time interval and specify the delay in ms in the text box. This policy is not available for the client-side code of Meteor applications.
- Restart if hotswap fails:
- Select this checkbox to have IntelliJ IDEA try restarting the server if the changes cannot be applied automatically. After the restart, IntelliJ IDEA brings you to the execution point where the problem took place.
- When the checkbox is cleared, IntelliJ IDEA just displays a pop-up window informing you about the failure and suggesting to restart the server manually.
Live Editing during a debugging session
To perform Live Editing during a debugging session
- When editing the code and monitoring how the changes are rendered in the browser, it is helpful to have the areas affected by the changes highlighted. To enable highlighting affected areas, open the IntelliJ IDEA settings dialog box, click Live Edit, and then select the Highlight current element in browser checkbox on the Live Edit page that opens.
- Edit the HTML file that implements the page opened in the browser and view the changes immediately rendered.
IntelliJ IDEA supports an operation that is somehow opposite to live editing. During a debugging session, the Elements tab of the Debug tool window shows the HTML source code that implements the actual browser page and its HTML DOM structure. Moreover, any changes made to the page through the browser are immediately reflected in the Elements tab. For more details, see Viewing Actual HTML DOM.