This adds some special case handling in 'wp_check_filetype_and_ext()' that prevents some common file types from being blocked based on mismatched MIME checks, which were made more strict in WordPress 5.0.1.
Merges [44438], [44439], [44441], and [44442] to the 4.9 branch.
Props Kloon, birgire, tellyworth, joemcgill.
See #45615.
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Currently, when viewing the block editor with JavaScript disabled, the user sees a blank admin page with the admin menu sidebar. This adds an admin notice informing the user that JavaScript is required for the new block editor.
Props mkaz, pento, azaozz, ocean90, desrosj.
Merges [44437] to the 5.0 branch.
Fixes#45453.
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When existing scripts or styles are updated in default themes, the version numbers in the enqueues should also be bumped to make sure the old files don't cache. This update bumps version numbers for changes since version 5.0, for themes Twenty Eleven through Twenty Nineteen.
Props laurelfulford.
Merges [44382] to the 5.0 branch.
Fixes#45679.
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When the original block editor styles were added to the existing default themes, the button blocks were styled to match how each theme styled the `button` tag.
However, the styles should respect the block editor's default style, "Rounded", and allow switching to the other styles, like "Outlined" and "Square".
Props laurelfulford.
Merges [44381] to the 5.0 branch.
Fixes#45541.
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On pages and posts with featured images, the top level menu items have a slight transparency on hover, which was being inherited by their submenus. This update removes that inheritance, improving readability and consistency in the menu's appearance.
Props kjellr.
Merges [44368] to the 5.0 branch.
Fixes#45689.
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Twenty Seventeen's original styles for the block editor custom colors had some issues: they weren't being applied to the button blocks due to lack of specificity, and when applied to paragraph blocks, there was no padding in the editor. This update makes sure the colors and related styles work as expected.
Props laurelfulford.
Merges [44402] to the 5.0 branch.
Fixes#45426.
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The "Continue Reading" link that's generated by the More block is styled to include an arrow next to the text; that arrow shouldn't inherit the text underline style. This update removes it.
Props littlebigthing, kjellr.
Merges [44369] to the 5.0 branch.
Fixes#45715.
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Removes `file_exist()` checks before calling `load_script_translations()` to let the determined paths be passed to `load_script_translations()` which provides its own file check and the possibility to filter the path.
Merge of [44418] to the 5.0 branch.
Props swissspidy, johnbillion, ocean90.
Fixes#45769.
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A static variable contains an integer that is incremented with each call. This number is returned with the optional prefix.
As such the returned value is not universally unique, but it is unique across the life of the PHP process.
Props westonruter, dlh.
Merges [43658] and [44406] to the 5.0 branch.
See #44883.
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In [42523], `trunk` was updated to use explicit context instead of a trailing space for the Edit string in TinyMCE plugins. [43472] later backported this change, but the string in `class-wp-editor.php` was missed. This fixes the `Edit` string so not display as `Edit|button` in the 5.0 branch.
Props dimadin.
See #42543, #44134.
Fixes#44919.
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In the Classic Editor, the “Add Media” button was outside of the TinyMCE editor. In the Block Editor, the “Add Media” button was moved into the TinyMCE toolbar in the Classic block, but the tooltip was not added to the list of translatable strings. This adds “Add Media” to that list.
The corresponding keyboard shortcut is also specified for the “Add Media” button.
Props afercia.
Merges [44398-44399] to the 5.0 branch.
Fixes#45788.
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While the filter is documented to only support a `WP_Error`, it has been a common practice to return true in a validation function if no errors have occurred. This was already caught when the same filter was executed in `WP_Customize_Setting`, it was however missing in `WP_Customize_Manager::validate_setting_values()`.
Props flixos90.
Merges [43578] to the 5.0 branch.
Fixes#44809.
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The theme's original navigation JavaScript was making it so all links on a site were immediately followed on touchstart when using a touch-enabled device. This update makes sure links are followed at touchend, to improve usability and menu behavior.
Props anevins, panchen, kjellr.
Fixes#45510.
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In [44185], a bug was introduced where hierarchical post types would not display in the correct default order (hierarchically).
This was caused by a `! isset()` check, which returned `false` after [44185], causing the correct default value to not be applied. This switches that conditional to use an `empty()` check, ignoring the new empty string assignment that was added to prevent a PHP notice when `compact()` is called.
Merges [44338] to the 5.0 branch.
Props davidbinda.
Fixes#45711.
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