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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| <?php | ||
| /** | ||
| * Define the mechanism to replace the HTML depending on the block attributes. | ||
| * | ||
| * @package gutenberg | ||
| */ | ||
|
|
||
| if ( ! function_exists( 'block_bindings_replace_html' ) ) { | ||
| /** | ||
| * Depending on the block attributes, replace the proper HTML based on the value returned by the source. | ||
| * | ||
| * @param string $block_content Block Content. | ||
| * @param string $block_name The name of the block to process. | ||
| * @param string $block_attr The attribute of the block we want to process. | ||
| * @param string $source_value The value used to replace the HTML. | ||
| */ | ||
| function block_bindings_replace_html( $block_content, $block_name, $block_attr, $source_value ) { | ||
| $block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block_name ); | ||
| if ( null === $block_type ) { | ||
| return; | ||
| } | ||
|
|
||
| // Depending on the attribute source, the processing will be different. | ||
| switch ( $block_type->attributes[ $block_attr ]['source'] ) { | ||
| case 'html': | ||
| case 'rich-text': | ||
| $block_reader = new WP_HTML_Tag_Processor( $block_content ); | ||
|
|
||
| // TODO: Support for CSS selectors whenever they are ready in the HTML API. | ||
| // In the meantime, support comma-separated selectors by exploding them into an array. | ||
| $selectors = explode( ',', $block_type->attributes[ $block_attr ]['selector'] ); | ||
| // Add a bookmark to the first tag to be able to iterate over the selectors. | ||
| $block_reader->next_tag(); | ||
| $block_reader->set_bookmark( 'iterate-selectors' ); | ||
|
|
||
| // TODO: This shouldn't be needed when the `set_inner_html` function is ready. | ||
| // Store the parent tag and its attributes to be able to restore them later in the button. | ||
| // The button block has a wrapper while the paragraph and heading blocks don't. | ||
| if ( 'core/button' === $block_name ) { | ||
| $button_wrapper = $block_reader->get_tag(); | ||
| $button_wrapper_attribute_names = $block_reader->get_attribute_names_with_prefix( '' ); | ||
| $button_wrapper_attrs = array(); | ||
| foreach ( $button_wrapper_attribute_names as $name ) { | ||
| $button_wrapper_attrs[ $name ] = $block_reader->get_attribute( $name ); | ||
| } | ||
| } | ||
|
|
||
| foreach ( $selectors as $selector ) { | ||
| // If the parent tag, or any of its children, matches the selector, replace the HTML. | ||
| if ( strcasecmp( $block_reader->get_tag( $selector ), $selector ) === 0 || $block_reader->next_tag( | ||
| array( | ||
| 'tag_name' => $selector, | ||
| ) | ||
| ) ) { | ||
| $block_reader->release_bookmark( 'iterate-selectors' ); | ||
|
|
||
| // TODO: Use `set_inner_html` method whenever it's ready in the HTML API. | ||
| // Until then, it is hardcoded for the paragraph, heading, and button blocks. | ||
| // Store the tag and its attributes to be able to restore them later. | ||
| $selector_attribute_names = $block_reader->get_attribute_names_with_prefix( '' ); | ||
| $selector_attrs = array(); | ||
| foreach ( $selector_attribute_names as $name ) { | ||
| $selector_attrs[ $name ] = $block_reader->get_attribute( $name ); | ||
| } | ||
| $selector_markup = "<$selector>" . esc_html( $source_value ) . "</$selector>"; | ||
| $amended_content = new WP_HTML_Tag_Processor( $selector_markup ); | ||
| $amended_content->next_tag(); | ||
| foreach ( $selector_attrs as $attribute_key => $attribute_value ) { | ||
| $amended_content->set_attribute( $attribute_key, $attribute_value ); | ||
| } | ||
| if ( 'core/paragraph' === $block_name || 'core/heading' === $block_name ) { | ||
| return $amended_content->get_updated_html(); | ||
| } | ||
| if ( 'core/button' === $block_name ) { | ||
| $button_markup = "<$button_wrapper>{$amended_content->get_updated_html()}</$button_wrapper>"; | ||
| $amended_button = new WP_HTML_Tag_Processor( $button_markup ); | ||
| $amended_button->next_tag(); | ||
| foreach ( $button_wrapper_attrs as $attribute_key => $attribute_value ) { | ||
| $amended_button->set_attribute( $attribute_key, $attribute_value ); | ||
| } | ||
| return $amended_button->get_updated_html(); | ||
| } | ||
| } else { | ||
| $block_reader->seek( 'iterate-selectors' ); | ||
| } | ||
| } | ||
| $block_reader->release_bookmark( 'iterate-selectors' ); | ||
| return $block_content; | ||
|
|
||
| case 'attribute': | ||
| $amended_content = new WP_HTML_Tag_Processor( $block_content ); | ||
| if ( ! $amended_content->next_tag( | ||
| array( | ||
| // TODO: build the query from CSS selector. | ||
| 'tag_name' => $block_type->attributes[ $block_attr ]['selector'], | ||
| ) | ||
| ) ) { | ||
| return $block_content; | ||
| } | ||
| $amended_content->set_attribute( $block_type->attributes[ $block_attr ]['attribute'], esc_attr( $source_value ) ); | ||
| return $amended_content->get_updated_html(); | ||
| break; | ||
|
|
||
| default: | ||
| return $block_content; | ||
| break; | ||
| } | ||
| return; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| <?php | ||
| /** | ||
| * Require the necessary files. | ||
| * | ||
| * @package gutenberg | ||
| */ | ||
|
|
||
| require_once __DIR__ . '/sources/index.php'; | ||
| require_once __DIR__ . '/html-processing.php'; | ||
|
|
||
| // Register the sources. | ||
| $gutenberg_experiments = get_option( 'gutenberg-experiments' ); | ||
| if ( $gutenberg_experiments ) { | ||
| if ( array_key_exists( 'gutenberg-pattern-partial-syncing', $gutenberg_experiments ) ) { | ||
| require_once __DIR__ . '/sources/pattern.php'; | ||
| } | ||
| if ( array_key_exists( 'gutenberg-block-bindings', $gutenberg_experiments ) ) { | ||
| require_once __DIR__ . '/sources/post-meta.php'; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| <?php | ||
| /** | ||
| * Define the mechanism to add new sources available in the block bindings API. | ||
| * | ||
| * @package gutenberg | ||
| */ | ||
|
|
||
| global $block_bindings_sources; | ||
| $block_bindings_sources = array(); | ||
| if ( ! function_exists( 'register_block_bindings_source' ) ) { | ||
| /** | ||
| * Function to register a new source. | ||
| * | ||
| * @param string $source_name The name of the source. | ||
| * @param string $label The label of the source. | ||
| * @param callable(object, object, string): string $apply - The callback executed when the source is processed during block rendering. | ||
| * - object $source_attrs: Object containing source ID used to look up the override value, i.e. {"value": "{ID}"}. | ||
| * - object $block_instance: The block instance. | ||
| * - string $attribute_name: The name of an attribute used to retrieve an override value from the block context. | ||
| * The callable should return a string that will be used to override the block's original value. | ||
| * | ||
| * | ||
| * @return void | ||
| */ | ||
| function register_block_bindings_source( $source_name, $label, $apply ) { | ||
| global $block_bindings_sources; | ||
| $block_bindings_sources[ $source_name ] = array( | ||
| 'label' => $label, | ||
| 'apply' => $apply, | ||
| ); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| <?php | ||
| /** | ||
| * Add the metadata source to the block bindings API. | ||
| * | ||
| * @package gutenberg | ||
| */ | ||
|
|
||
| if ( function_exists( 'register_block_bindings_source' ) ) { | ||
| $pattern_source_callback = function ( $source_attrs, $block_instance, $attribute_name ) { | ||
| if ( ! _wp_array_get( $block_instance->attributes, array( 'metadata', 'id' ), false ) ) { | ||
| return null; | ||
| } | ||
| $block_id = $block_instance->attributes['metadata']['id']; | ||
| return _wp_array_get( $block_instance->context, array( 'pattern/overrides', $block_id, $attribute_name ), null ); | ||
| }; | ||
| register_block_bindings_source( | ||
| 'pattern_attributes', | ||
| __( 'Pattern Attributes', 'gutenberg' ), | ||
| $pattern_source_callback | ||
| ); | ||
| } |
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