Manual:Hooks/EditPage::showEditForm:initial

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function fnMyHook( $editPage ) { ... }

$wgHooks['EditPage::showEditForm:initial'][] = 'fnMyHook';

[edit] Details

• $editPage: the current EditPage object.

[edit] Notes

You can do something like:

if( $editPage->formtype == 'preview' ) {
    // performing a preview.
}

to only take action on certain types of edits.

[edit] Inject HTML

There are many locations within EditPage::showEditForm:initial that allow a user to inject HTML. These hook locations are represented by member variables of the editPage object.

$editPage->editFormPageTop
$editPage->editFormTextTop
$editPage->editFormTextBeforeContent
$editPage->editFormTextAfterWarn
$editPage->editFormTextAfterTools
$editPage->editFormTextBottom

To inject your HTML, append your HTML to one of the aforementioned member variables, e.g.

$editPage->editFormPageTop .= "<span>Hello World!</span>";

Some hook locations are inside forms; some not. Those inside the form allow you to inject HTML form elements.

• Inside form
  • editFormTextBeforeContent
  • editFormTextAfterWarn
  • editFormTextAfterTools
  • editFormTextBottom
• Outside form
  • editFormPageTop
  • editFormTextTop

Normally, we use EditPage::showEditForm:fields for form elements, but there may be some circumstances for which it is necessary to use the aforementioned hook locations.