Introduces `WP_Customize_Manager::get_previewable_devices()` with a `customize_previewable_devices` filter to change the default device and which devices are available for previewing. This is a feature that was first pioneered on WordPress.com.
Props celloexpressions, folletto, valendesigns, westonruter, welcher, adamsilverstein, michaelarestad, Fab1en.
Fixes#31195.
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Fixes a layout issue in the Customizer UI. Also de-duplicate title display logic, outputting "Loading..." as site title in PHP with actual title being set upon Customizer `ready`. Also update the site title in response to a `blogname` setting change as opposed to `input` DOM events on the control.
Fixes#35579.
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When there are hundreds of settings and controls (e.g. nav menu items and widget instances) the resulting object that is JSON-encoded can become very large, and `wp_json_encode()` can consume a lot of memory to serialize it. By breaking down the serialization into multiple calls the peak memory usage can be kept in line.
Moves logic out of `wp-admin/customize.php` into the `WP_Customize_Manager` class with new methods:
* `is_ios()`
* `get_document_title_template()`
* `get_preview_url()`/`set_preview_url()`
* `get_return_url()`/`set_return_url()`
* `get_autofocus()`/`set_autofocus()`
* `customize_pane_settings()`
Includes unit tests for these methods, for which the logic was formerly untestable in `customize.php`.
Fixes#33898.
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The pre-3.4 theme previewer doesn't work when using a static front page.
We kept the old theme preview for no-JS and some browsers that were less capable. But since browsers are doing a better job today we don't need to continue fixing/shipping this legacy code. Bye!
fixes#33178.
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* Unset `wp_get_sidebars_widgets()`' non-admin cache var `$_wp_sidebars_widgets` in Customize theme preview.
* Add `WP_Customize_Setting::$dirty` so that settings can be initially-dirty when the Customizer loads.
* Mark `old_sidebars_widgets_data` setting initially-dirty.
* Mark all `sidebars_widgets` settings as initially-dirty during theme switch.
props westonruter.
see #31484.
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* Brings into core the Customizer Theme Switcher feature plugin
* You can now browse, preview, and activate themes right from the Customizer
fixes#31303.
props celloexpressions, afercia, westonruter, folletto, designsimply
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* Only show the theme info when doing a live preview of another theme.
* Replace with helper text about what you are customizing and what the Customizer is for.
* Fix focus styling.
props celloexpressions, westonruter. fixes#28550.
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* Use a single close icon instead of a context-changing cancel/close button in the Customizer. In user testing, this small distinction in language was overlooked, and we use an AYS now instead. This also makes it consistent with the back arrow in Customizer panels.
* Use the same close icon as well as the previous/next arrows from the theme details browser in the theme install preview.
props celloexpressions. fixes#28655.
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Create a panel via `$GLOBALS['wp_customize']->add_panel( $panel_id, $args )` and use `$panel_id` for the `panel` argument in `$GLOBALS['wp_customize']->add_section( $section_id, $args )`. That's it.
As an example all widget area sections are now summarized into one panel. Feedback appreciated.
props celloexpressions.
see #27406.
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Some plugins are using custom scripts and styles for there widgets. These are available on the Widgets screens, but not in the Customizer yet.
Scripts and styles can be enqueued via:
* `admin_enqueue_scripts`
* `admin_print_scripts` and `admin_print_scripts-widgets.php`
* `admin_print_styles` and `admin_print_styles-widgets.php`
* `admin_print_footer_scripts` and `admin_footer-widgets.php`
All this hooks are now called in the Customizer too.
Previously we have add the `#widgets-right` ID to a container div via jQuery. Remember: `#widgets-right` exists on the Widgets screen and is used by many plugins to do event delegation from that element.
But since our script files are loaded in the footer, the JavaScript way is a bit late for some plugins.
We have decided to add a `div#widgets-right` container element to customizer. "Less hacky hack."
props westonruter, ocean90. Thanks dpe415 for testing.
fixes#27619.
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