Provides core language-agnostic functionality for LiveView Native across platforms

Related tags

GUI liveview-native-core
Overview

LiveView Native Core

This repository contains an implementation of the LiveView Native core library, which is intended to handle all the details which are common across the various platforms on which LiveView Native is used.

Features

Currently, the features planned to be provided by the Core library consists of:

  1. Connection management for the LiveView socket
  2. Initializing a virtual DOM from the page received from the LiveView server, and associated parsing out of components, live views, and statics
  3. Receipt, decoding, and application of changes sent by the LiveView server to the virtual DOM managed by Core
  4. Management of callbacks/event handlers registered from the host language in response to virtual DOM changes

Host languages (e.g. Swift) can then bind to this library, and focus on the details of rendering the UI, rather than on how to interact with the LiveView server.

Status

This library is not quite ready for production use yet, as there are still some details of the API being finalized, and much testing remains to be done. We'll plan to announce the library more publically when it is ready for the community to build with.

License

Apache 2.0. See LICENSE.md.

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Comments
  • Assertion failure when merging document

    Assertion failure when merging document

    Stack trace:

    thread '<unnamed>' panicked at 'assertion failed: old_cursor.depth > new_cursor.depth', crates/core/src/diff/diff.rs:339:17
stack backtrace:
   0: rust_begin_unwind
             at ./rustc/0ca356586fed56002b10920fd21ddf6fb12de797/library/std/src/panicking.rs:556:5
   1: core::panicking::panic_fmt
             at ./rustc/0ca356586fed56002b10920fd21ddf6fb12de797/library/core/src/panicking.rs:142:14
   2: core::panicking::panic
             at ./rustc/0ca356586fed56002b10920fd21ddf6fb12de797/library/core/src/panicking.rs:48:5
   3: liveview_native_core::diff::diff::diff
             at ./Users/shadowfacts/Work/liveview-native-core/crates/core/src/diff/diff.rs:339:17
   4: __liveview_native_core$Document$merge
             at ./Users/shadowfacts/Work/liveview-native-core/crates/core/src/ffi/mod.rs:146:23
   5: $s18LiveViewNativeCore8DocumentC5merge4withyAC_tF
             at ./Users/shadowfacts/Work/liveview-native-core-swift/Sources/LiveViewNativeCore/LiveViewNative.swift:88:12
   6: $s21PhoenixLiveViewNative0bC11CoordinatorC10handleDiff33_9E05CFBA1D5E03FCD0955515C76F9ED7LL7payload7baseURLySDySSypG_10Foundation0R0VtKF
             at ./Users/shadowfacts/Work/liveview-client-swiftui/Sources/PhoenixLiveViewNative/LiveViewCoordinator.swift:302:24
   7: $s21PhoenixLiveViewNative0bC11CoordinatorC07connectbC033_9E05CFBA1D5E03FCD0955515C76F9ED7LL5tokenyAC22ConnectionAttemptTokenCyx_G_tYaKFy05SwiftA6Client7MessageCcfU1_yyYaYbScMYccfU_TY0_
             at ./Users/shadowfacts/Work/liveview-client-swiftui/Sources/PhoenixLiveViewNative/LiveViewCoordinator.swift:425:27
   8: __ZN5swift34runJobInEstablishedExecutorContextEPNS_3JobE
   9: __ZL17swift_job_runImplPN5swift3JobENS_11ExecutorRefE
  10: __dispatch_main_queue_drain
  11: __dispatch_main_queue_callback_4CF
  12: ___CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
  13: ___CFRunLoopRun
  14: _CFRunLoopRunSpecific
  15: _GSEventRunModal
  16: -[UIApplication _run]
  17: _UIApplicationMain
  18: _OUTLINED_FUNCTION_51
  19: _OUTLINED_FUNCTION_51
  20: _OUTLINED_FUNCTION_10
  21: $s10NarwinChat0aB3AppV5$mainyyFZ
             at ./Users/shadowfacts/Work/narwin_chat/priv/clients/ios/narwin-chat/NarwinChat/NarwinChatApp.swift:10:1
  22: main

    Old DOM:

    <vstack nav-title="Cottonwood 4-5" roster-link="/room/16/roster">
    <messages-list>
        <vstack>
            <vstack id="102" alignment="leading" pad-leading="8" pad-trailing="8" pad-top="4" pad-bottom="4">
                <zstack>
                    <hstack>
                        <text font="body" font-weight="bold">
                            Test Test
                        </text>
                        <spacer />
                    </hstack>
                    <hstack>
                        <spacer />
                        <local-time datetime="2022-10-26T17:13:08Z" />
                    </hstack>
                </zstack>
                <link-text frame-alignment="leading" fix-multiline-text="">
                    A
                </link-text>
            </vstack>
        </vstack>
    </messages-list>
    <rectangle frame-height="1" fill-color="#cccccc" />
    <hstack pad-leading="8" pad-trailing="8">
        <phx-form id="post" phx-submit="send" submit-on-enter="">
            <hstack>
                <textfield name="text" border-style="none" clear-button="while-editing" placeholder="Message" return-key-type="send" />
                <phx-submit-button after-submit="clear">
                    <text>
                        Send
                    </text>
                </phx-submit-button>
            </hstack>
        </phx-form>
    </hstack>
</vstack>

    New DOM:

    <vstack nav-title="Cottonwood 4-5" roster-link="/room/16/roster">
    <messages-list>
        <vstack>
            <vstack id="102" alignment="leading" pad-leading="8" pad-trailing="8" pad-top="4" pad-bottom="4">
                <zstack>
                    <hstack>
                        <text font="body" font-weight="bold">
                            Test Test
                        </text>
                        <spacer />
                    </hstack>
                    <hstack>
                        <spacer />
                        <local-time datetime="2022-10-26T17:13:08Z" />
                    </hstack>
                </zstack>
                <link-text frame-alignment="leading" fix-multiline-text="">
                    A
                </link-text>
            </vstack>
            <vstack id="103" alignment="leading" pad-leading="8" pad-trailing="8" pad-top="4" pad-bottom="4">
                <zstack>
                    <hstack>
                        <text font="body" font-weight="bold">
                            Test Test
                        </text>
                        <spacer />
                    </hstack>
                    <hstack>
                        <spacer />
                        <local-time datetime="2022-10-26T17:13:17Z" />
                    </hstack>
                </zstack>
                <link-text frame-alignment="leading" fix-multiline-text="">
                    B
                </link-text>
            </vstack>
        </vstack>
    </messages-list>
    <rectangle frame-height="1" fill-color="#cccccc" />
    <hstack pad-leading="8" pad-trailing="8">
        <phx-form id="post" phx-submit="send" submit-on-enter="">
            <hstack>
                <textfield name="text" border-style="none" clear-button="while-editing" placeholder="Message" return-key-type="send" />
                <phx-submit-button after-submit="clear">
                    <text>
                        Send
                    </text>
                </phx-submit-button>
            </hstack>
        </phx-form>
    </hstack>
</vstack>
    bug area/diff 
    opened by shadowfacts 4
  • handle attr changes in simple case of 1 attr => 1 value

    handle attr changes in simple case of 1 attr => 1 value

    This PR adds support for changing an attributes' value -- in the common case, not the multiple-values case.

    (I needed this because I have a LiveView that changes attributes, and I saw that this was a 'todo').

    I marked it a draft because I see indications that LVNC aspires to handle multiple values for attributes -- an example used in the tests is web-inspired, like: <body class="a" class="b"></body>.

    In the case of LiveViewNative it feels like you could just say "people, let's not do that", if you really wanted ...

    opened by mrluc 1
  • Add a print_node helper and expose FFI

    Add a print_node helper and expose FFI

    Useful for debugging when you need to compare two nodes.

    Also re-adds the C headers that were removed in 9966a1851a487479a6d829dd212850869ac9872e, but in the new location.

    opened by shadowfacts 1
Releases(0.1.0-ca48f8c)
Owner
LiveView Native
Native platform implementations of the Phoenix LiveView protocol
LiveView Native
GitHub
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