Summary:
Before this change, C++ couldn't propagate changes that updated TextInputs that were completely empty. In C++ the AttributedString cannot contain Fragments with empty text, so a completely empty TextInput would have no Fragments; this breaks the C++ state value updating infra since it relies on copying over existing fragments.
Instead, now we propagate default TextAttributes and ShadowView through State, so that State updates can use them to construct new Fragments.
Changelog: [Internal]
Reviewed By: shergin, mdvacca
Differential Revision: D18835048
fbshipit-source-id: 58ac94c5454c8610c6287b096b62199045e5879b
Summary:
Support for modifying AndroidTextInputs with multiple Fragments was added on the Java side in a previous diff.
This diff adds support on the C++ side for the following scenario:
A <TextInput> is initially given contents via children <Text> notes, which represents multiple Fragments (that could have different TextAttributes like color, font size, backgroundcolor, etc). The Android EditText view must get this initial data, and then all updates after that on the Android side must flow to C++ so that the C++ ShadowNode can perform layout and measurement with up-to-date data.
At the same time, the <TextInput> node could be updated from the JS side. All else equal, this would cause the native Android EditText to be replaced with the old, original contents of the <TextInput> that may not have been updated at all from the JS side.
To mitigate this, we keep track of two AttributedStrings with Fragments on the C++ side: the AttributedString representing the values coming from <TextInput> children, from JS (`treeAttributedString`); and the AttributedString representing the current value the user is interacting with (`attributedString`). If the children from JS don't change, we don't update Android/Java with that AttributedString. If the children from JS do change, we overwrite any user input with the tree from JS.
Changelog: [Internal]
Reviewed By: shergin, mdvacca
Differential Revision: D18785976
fbshipit-source-id: a1f3a935e02379cabca8ab62a39cb3c0cf3fbca5
Summary:
Currently the TextInput background is same as the background of the `text` value's attributes, because of the way we're parsing props and using the TextInput's props both for the background of the TextInput, and for the AttributedString/background color of the `text` prop node's attributes. If the background color has opacity, the `text` prop node will not have the correct background because it will be applied twice. Fix it.
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D18760384
fbshipit-source-id: 0cdcc8dd8839dd47e8fe0f593b4696bc16a62333
Summary:
Fix and simplify `AndroidTextInputShadowNode::getAttributedString` so that it (1) works, and (2) is aligned with the equivalents in the old Java code.
The issue is that we weren't picking up `text` attributes since we're only traversing children and not the TextInput node itself. If a `text` attribute is present it needs to be treated as its own Text node.
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D18739830
fbshipit-source-id: 4b3bc81dbe8c241c2e06fe5be1f9b50e49132890
Summary:
The diff implements a new class called `AttributedStringBox` that represents an object storing a shared `AttributedString` *or* a shared pointer to some opaque platform-specific object that can be used as an attributed string. The class serves two main purposes:
- Represent type-erased attributed string entity (which can be platform-specific or platform-independent);
- Represent a container that can be copied with constant complexity.
Why? Several reasons:
- Sometimes it makes sense to keep an attributed string as a shared resource. This way we don't need to pay for expensive copying and we also implement a copy-on-write semantics on top of that if needed.
- We need to extend a TextLayoutMeasure API to support measuring some platform-specific attributed string implementation to remove the necessity of converting a string back and forth between representations. That's especially important for TextInput because we will need to measure that very efficiently (and the source of measuring, in this case, is a platform attributed string).
In other words, we need something to store inside TextInputState to measure and update very efficiently. The source of this data might be a native TextInput control or a data from React, to represent that kinda object we need this data structure (and interfaces that deal with it).
Changelog: [Internal] Fabric-specific internal change.
Reviewed By: sammy-SC
Differential Revision: D18670793
fbshipit-source-id: bc0164f801f28642f7c6da340af12acf33b85d24
Summary:
In AndroidTextInput, support codegen'd ViewCommands in native and add three commands that will eventually replace usage of setNativeProps on Android.
TextInput will use these commands in a future diff.
Changelog: [Internal]
Reviewed By: TheSavior
Differential Revision: D18612150
fbshipit-source-id: 5d427040686e8c5ab504dd845bc8ef863f558c35
Summary:
In C++ we return default/placeholder text instead of text in `getAttributedString` so that measurement is correct. This is fine but we shouldn't actually set the attributedString on the ReactEditText view.
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D18672369
fbshipit-source-id: 1bb5cddda3cf78f2cff6f805e67c8994ab32ee7c
Summary:
Use a similar setup as Paragraph, and support in Fabric:
- Correct measuring of AndroidTextInput
- Correct display of AndroidTextInput attributed strings
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D18669957
fbshipit-source-id: 84e0ad8021c9edf8219e0c673c781276ca29787d
Summary:
In AndroidTextInput ShadowNode, return AttributedString for placeholder text if text is empty. This ensures that empty TextInputs will have non-zero height.
Changelog: [Internal]
Reviewed By: mdvacca
Differential Revision: D18623063
fbshipit-source-id: 2eec2b794b526e8ff5435352e20ccb659358fc84
Summary:
This is another step on the journey of removing `enable_shared_from_this`.
It's unclear why we used that before but it's clear now that using shared_ptr here is not necessary because all computation around happens inside the single callstack, so by definition we don't have object life-time concerns here.
Changelog: [Internal] Small Fabric-specific optimization.
Reviewed By: sammy-SC
Differential Revision: D17973957
fbshipit-source-id: 09a65c78e22083ed21b041240307f4858379cc60
Summary: Support existing, backwards-compatible AndroidTextInput component for minimal support of TextInput on Android.
Reviewed By: shergin, mdvacca
Differential Revision: D17086758
fbshipit-source-id: 25726f22229e0d5dfe96eb36b386a5317601283d
Joshua Gross
Valentin Shergin
Andres Suarez