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Merge pull request #794 from Textualize/expand-shrink

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This commit is contained in:
Will McGugan
2022-09-20 17:18:11 +01:00
committed by GitHub
parent f70232ca5c 216d05b17f
commit 13f6edd9fe
15 changed files with 203 additions and 90 deletions
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2
docs/examples/events/dictionary.py
View File

@@ -19,7 +19,7 @@ class DictionaryApp(App):
def compose(self) -> ComposeResult:
yield TextInput(placeholder="Search for a word")
yield Vertical(Static(id="results", fluid=False), id="results-container")
yield Vertical(Static(id="results"), id="results-container")
async def on_text_input_changed(self, message: TextInput.Changed) -> None:
"""A coroutine to handle a text changed message."""

10
examples/code_browser.css
View File

@@ -13,14 +13,16 @@ CodeBrowser.-show-tree #tree-view {
dock: left;
height: 100%;
max-width: 50%;
background: $surface;
background: #151C25;
}
DirectoryTree {
padding-right: 1;
padding-right: 1;
}
#code {
width: auto;
#code-view {
overflow: auto scroll;
}
#code {
width: auto;
}

14
examples/code_browser.py
View File

@@ -1,3 +1,12 @@
"""
Code browser example.
Run with:
python code_browser.py PATH
"""
import sys
from rich.syntax import Syntax
@@ -30,7 +39,7 @@ class CodeBrowser(App):
yield Header()
yield Container(
Vertical(DirectoryTree(path), id="tree-view"),
Vertical(Static(id="code"), id="code-view"),
Vertical(Static(id="code", expand=True), id="code-view"),
)
yield Footer()
@@ -41,7 +50,7 @@ class CodeBrowser(App):
syntax = Syntax.from_path(
event.path,
line_numbers=True,
word_wrap=True,
word_wrap=False,
indent_guides=True,
theme="github-dark",
)
@@ -54,6 +63,7 @@ class CodeBrowser(App):
self.sub_title = event.path
def action_toggle_files(self) -> None:
"""Called in response to key binding."""
self.show_tree = not self.show_tree

31
examples/dictionary.css Normal file
View File

@@ -0,0 +1,31 @@
Screen {
background: $panel;
}
TextInput {
dock: top;
border: tall $background;
width: 100%;
height: 1;
padding: 0 1;
margin: 1 1 0 1;
background: $boost;
}
TextInput:focus {
border: tall $accent;
}
#results {
width: auto;
min-height: 100%;
padding: 0 1;
}
#results-container {
background: $background 50%;
margin: 1 2;
height: 100%;
overflow: hidden auto;
}

62
examples/dictionary.py Normal file
View File

@@ -0,0 +1,62 @@
import asyncio
from typing import Any
try:
import httpx
except ImportError:
raise ImportError("Please install httpx with 'pip install httpx' ")
from rich.markdown import Markdown
from textual.app import App, ComposeResult
from textual.layout import Vertical
from textual.widgets import Static, TextInput
class DictionaryApp(App):
"""Searches ab dictionary API as-you-type."""
CSS_PATH = "dictionary.css"
def compose(self) -> ComposeResult:
yield TextInput(placeholder="Search for a word")
yield Vertical(Static(id="results"), id="results-container")
async def on_text_input_changed(self, message: TextInput.Changed) -> None:
"""A coroutine to handle a text changed message."""
if message.value:
# Look up the word in the background
asyncio.create_task(self.lookup_word(message.value))
else:
# Clear the results
self.query_one("#results", Static).update()
async def lookup_word(self, word: str) -> None:
"""Looks up a word."""
url = f"https://api.dictionaryapi.dev/api/v2/entries/en/{word}"
async with httpx.AsyncClient() as client:
results = (await client.get(url)).json()
if word == self.query_one(TextInput).value:
markdown = self.make_word_markdown(results)
self.query_one("#results", Static).update(Markdown(markdown))
def make_word_markdown(self, results: list[Any]) -> str:
"""Convert the results in to markdown."""
lines = []
for result in results:
lines.append(f"# {result['word']}")
lines.append("")
for meaning in result.get("meanings", []):
lines.append(f"_{meaning['partOfSpeech']}_")
lines.append("")
for definition in meaning.get("definitions", []):
lines.append(f" - {definition['definition']}")
lines.append("---")
return "\n".join(lines)
if __name__ == "__main__":
app = DictionaryApp()
app.run()

101
poetry.lock generated
View File

@@ -74,7 +74,7 @@ tests_no_zope = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>
[[package]]
name = "black"
version = "22.6.0"
version = "22.8.0"
description = "The uncompromising code formatter."
category = "dev"
optional = false
@@ -103,6 +103,14 @@ category = "dev"
optional = false
python-versions = "*"
[[package]]
name = "certifi"
version = "2022.9.14"
description = "Python package for providing Mozilla's CA Bundle."
category = "dev"
optional = false
python-versions = ">=3.6"
[[package]]
name = "cfgv"
version = "3.3.1"
@@ -166,7 +174,7 @@ toml = ["tomli"]
[[package]]
name = "distlib"
version = "0.3.5"
version = "0.3.6"
description = "Distribution utilities"
category = "dev"
optional = false
@@ -208,7 +216,7 @@ dev = ["twine", "markdown", "flake8", "wheel"]
[[package]]
name = "griffe"
version = "0.22.0"
version = "0.22.1"
description = "Signatures for entire Python programs. Extract the structure, the frame, the skeleton of your project, to generate API documentation or find breaking changes in your API."
category = "dev"
optional = false
@@ -222,7 +230,7 @@ async = ["aiofiles (>=0.7,<1.0)"]
[[package]]
name = "identify"
version = "2.5.3"
version = "2.5.5"
description = "File identification library for Python"
category = "dev"
optional = false
@@ -233,7 +241,7 @@ license = ["ukkonen"]
[[package]]
name = "idna"
version = "3.3"
version = "3.4"
description = "Internationalized Domain Names in Applications (IDNA)"
category = "main"
optional = false
@@ -345,7 +353,7 @@ mkdocs = ">=1.1"
[[package]]
name = "mkdocs-material"
version = "8.4.2"
version = "8.5.3"
description = "Documentation that simply works"
category = "dev"
optional = false
@@ -358,6 +366,7 @@ mkdocs = ">=1.3.0"
mkdocs-material-extensions = ">=1.0.3"
pygments = ">=2.12"
pymdown-extensions = ">=9.4"
requests = ">=2.26"
[[package]]
name = "mkdocs-material-extensions"
@@ -473,11 +482,11 @@ pyparsing = ">=2.0.2,<3.0.5 || >3.0.5"
[[package]]
name = "pathspec"
version = "0.9.0"
version = "0.10.1"
description = "Utility library for gitignore style pattern matching of file paths."
category = "dev"
optional = false
python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
python-versions = ">=3.7"
[[package]]
name = "platformdirs"
@@ -663,9 +672,27 @@ python-versions = ">=3.6"
[package.dependencies]
pyyaml = "*"
[[package]]
name = "requests"
version = "2.28.1"
description = "Python HTTP for Humans."
category = "dev"
optional = false
python-versions = ">=3.7, <4"
[package.dependencies]
certifi = ">=2017.4.17"
charset-normalizer = ">=2,<3"
idna = ">=2.5,<4"
urllib3 = ">=1.21.1,<1.27"
[package.extras]
socks = ["PySocks (>=1.5.6,!=1.5.7)"]
use_chardet_on_py3 = ["chardet (>=3.0.2,<6)"]
[[package]]
name = "rich"
version = "12.5.1"
version = "12.6.0a1"
description = "Render rich text, tables, progress bars, syntax highlighting, markdown and more to the terminal"
category = "main"
optional = false
@@ -730,9 +757,22 @@ category = "main"
optional = false
python-versions = ">=3.7"
[[package]]
name = "urllib3"
version = "1.26.12"
description = "HTTP library with thread-safe connection pooling, file post, and more."
category = "dev"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*, <4"
[package.extras]
brotli = ["brotlicffi (>=0.8.0)", "brotli (>=1.0.9)", "brotlipy (>=0.6.0)"]
secure = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "certifi", "urllib3-secure-extra", "ipaddress"]
socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
[[package]]
name = "virtualenv"
version = "20.16.3"
version = "20.16.5"
description = "Virtual Python Environment builder"
category = "dev"
optional = false
@@ -790,7 +830,7 @@ dev = ["aiohttp", "click", "msgpack"]
[metadata]
lock-version = "1.1"
python-versions = "^3.7"
content-hash = "61db56567f708cd9ca1c27f0e4a4b4aa3dd808fc8411f80967a90995d7fdd8c8"
content-hash = "675b2fee0c6462eb36040dfbb19cf2c72451c73dfd619b1e830962c5f21ad529"
[metadata.files]
aiohttp = [
@@ -881,35 +921,12 @@ asynctest = [
]
atomicwrites = []
attrs = []
black = [
{file = "black-22.6.0-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:f586c26118bc6e714ec58c09df0157fe2d9ee195c764f630eb0d8e7ccce72e69"},
{file = "black-22.6.0-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:b270a168d69edb8b7ed32c193ef10fd27844e5c60852039599f9184460ce0807"},
{file = "black-22.6.0-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:6797f58943fceb1c461fb572edbe828d811e719c24e03375fd25170ada53825e"},
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{file = "black-22.6.0-cp310-cp310-win_amd64.whl", hash = "sha256:f6fe02afde060bbeef044af7996f335fbe90b039ccf3f5eb8f16df8b20f77666"},
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{file = "black-22.6.0-cp36-cp36m-win_amd64.whl", hash = "sha256:2ea29072e954a4d55a2ff58971b83365eba5d3d357352a07a7a4df0d95f51c78"},
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{file = "black-22.6.0-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:187d96c5e713f441a5829e77120c269b6514418f4513a390b0499b0987f2ff1c"},
{file = "black-22.6.0-cp37-cp37m-win_amd64.whl", hash = "sha256:074458dc2f6e0d3dab7928d4417bb6957bb834434516f21514138437accdbe90"},
{file = "black-22.6.0-cp38-cp38-macosx_10_9_universal2.whl", hash = "sha256:a218d7e5856f91d20f04e931b6f16d15356db1c846ee55f01bac297a705ca24f"},
{file = "black-22.6.0-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:568ac3c465b1c8b34b61cd7a4e349e93f91abf0f9371eda1cf87194663ab684e"},
{file = "black-22.6.0-cp38-cp38-macosx_11_0_arm64.whl", hash = "sha256:6c1734ab264b8f7929cef8ae5f900b85d579e6cbfde09d7387da8f04771b51c6"},
{file = "black-22.6.0-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:c9a3ac16efe9ec7d7381ddebcc022119794872abce99475345c5a61aa18c45ad"},
{file = "black-22.6.0-cp38-cp38-win_amd64.whl", hash = "sha256:b9fd45787ba8aa3f5e0a0a98920c1012c884622c6c920dbe98dbd05bc7c70fbf"},
{file = "black-22.6.0-cp39-cp39-macosx_10_9_universal2.whl", hash = "sha256:7ba9be198ecca5031cd78745780d65a3f75a34b2ff9be5837045dce55db83d1c"},
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{file = "black-22.6.0-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:560558527e52ce8afba936fcce93a7411ab40c7d5fe8c2463e279e843c0328ee"},
{file = "black-22.6.0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:b154e6bbde1e79ea3260c4b40c0b7b3109ffcdf7bc4ebf8859169a6af72cd70b"},
{file = "black-22.6.0-cp39-cp39-win_amd64.whl", hash = "sha256:4af5bc0e1f96be5ae9bd7aaec219c901a94d6caa2484c21983d043371c733fc4"},
{file = "black-22.6.0-py3-none-any.whl", hash = "sha256:ac609cf8ef5e7115ddd07d85d988d074ed00e10fbc3445aee393e70164a2219c"},
{file = "black-22.6.0.tar.gz", hash = "sha256:6c6d39e28aed379aec40da1c65434c77d75e65bb59a1e1c283de545fb4e7c6c9"},
]
black = []
cached-property = [
{file = "cached-property-1.5.2.tar.gz", hash = "sha256:9fa5755838eecbb2d234c3aa390bd80fbd3ac6b6869109bfc1b499f7bd89a130"},
{file = "cached_property-1.5.2-py2.py3-none-any.whl", hash = "sha256:df4f613cf7ad9a588cc381aaf4a512d26265ecebd5eb9e1ba12f1319eb85a6a0"},
]
certifi = []
cfgv = [
{file = "cfgv-3.3.1-py2.py3-none-any.whl", hash = "sha256:c6a0883f3917a037485059700b9e75da2464e6c27051014ad85ba6aaa5884426"},
{file = "cfgv-3.3.1.tar.gz", hash = "sha256:f5a830efb9ce7a445376bb66ec94c638a9787422f96264c98edc6bdeed8ab736"},
@@ -937,10 +954,7 @@ ghp-import = [
]
griffe = []
identify = []
idna = [
{file = "idna-3.3-py3-none-any.whl", hash = "sha256:84d9dd047ffa80596e0f246e2eab0b391788b0503584e8945f2368256d2735ff"},
{file = "idna-3.3.tar.gz", hash = "sha256:9d643ff0a55b762d5cdb124b8eaa99c66322e2157b69160bc32796e824360e6d"},
]
idna = []
importlib-metadata = [
{file = "importlib_metadata-4.12.0-py3-none-any.whl", hash = "sha256:7401a975809ea1fdc658c3aa4f78cc2195a0e019c5cbc4c06122884e9ae80c23"},
{file = "importlib_metadata-4.12.0.tar.gz", hash = "sha256:637245b8bab2b6502fcbc752cc4b7a6f6243bb02b31c5c26156ad103d3d45670"},
@@ -1174,10 +1188,7 @@ packaging = [
{file = "packaging-21.3-py3-none-any.whl", hash = "sha256:ef103e05f519cdc783ae24ea4e2e0f508a9c99b2d4969652eed6a2e1ea5bd522"},
{file = "packaging-21.3.tar.gz", hash = "sha256:dd47c42927d89ab911e606518907cc2d3a1f38bbd026385970643f9c5b8ecfeb"},
]
pathspec = [
{file = "pathspec-0.9.0-py2.py3-none-any.whl", hash = "sha256:7d15c4ddb0b5c802d161efc417ec1a2558ea2653c2e8ad9c19098201dc1c993a"},
{file = "pathspec-0.9.0.tar.gz", hash = "sha256:e564499435a2673d586f6b2130bb5b95f04a3ba06f81b8f895b651a3c76aabb1"},
]
pathspec = []
platformdirs = [
{file = "platformdirs-2.5.2-py3-none-any.whl", hash = "sha256:027d8e83a2d7de06bbac4e5ef7e023c02b863d7ea5d079477e722bb41ab25788"},
{file = "platformdirs-2.5.2.tar.gz", hash = "sha256:58c8abb07dcb441e6ee4b11d8df0ac856038f944ab98b7be6b27b2a3c7feef19"},
@@ -1256,6 +1267,7 @@ pyyaml-env-tag = [
{file = "pyyaml_env_tag-0.1-py3-none-any.whl", hash = "sha256:af31106dec8a4d68c60207c1886031cbf839b68aa7abccdb19868200532c2069"},
{file = "pyyaml_env_tag-0.1.tar.gz", hash = "sha256:70092675bda14fdec33b31ba77e7543de9ddc88f2e5b99160396572d11525bdb"},
]
requests = []
rich = []
six = [
{file = "six-1.16.0-py2.py3-none-any.whl", hash = "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"},
@@ -1297,6 +1309,7 @@ typed-ast = [
{file = "typed_ast-1.5.4.tar.gz", hash = "sha256:39e21ceb7388e4bb37f4c679d72707ed46c2fbf2a5609b8b8ebc4b067d977df2"},
]
typing-extensions = []
urllib3 = []
virtualenv = []
watchdog = [
{file = "watchdog-2.1.9-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:a735a990a1095f75ca4f36ea2ef2752c99e6ee997c46b0de507ba40a09bf7330"},

2
pyproject.toml
View File

@@ -22,7 +22,7 @@ textual = "textual.cli.cli:run"
[tool.poetry.dependencies]
python = "^3.7"
rich = "^12.5.0"
rich = "^12.6.0a1"
#rich = {path="../rich", develop=true}
importlib-metadata = "^4.11.3"
typing-extensions = { version = "^4.0.0", python = "<3.8" }

1
sandbox/will/basic.css
View File

@@ -18,6 +18,7 @@ App > Screen {
layers: base sidebar;
layout: vertical;
overflow: hidden;
}
#tree-container {

4
sandbox/will/basic.py
View File

@@ -104,9 +104,11 @@ class Success(Static):
return Text("This is a success message", justify="center")
class BasicApp(App, css_path="basic.css"):
class BasicApp(App):
"""A basic app demonstrating CSS"""
CSS_PATH = "basic.css"
def on_load(self):
"""Bind keys here."""
self.bind("s", "toggle_class('#sidebar', '-active')", description="Sidebar")

7
src/textual/render.py
View File

@@ -13,9 +13,10 @@ def measure(console: Console, renderable: RenderableType, default: int) -> int:
Returns:
int: Width in cells
"""
width = default
renderable = rich_cast(renderable)
get_console_width = getattr(renderable, "__rich_measure__", None)
if get_console_width is not None:
render_width = get_console_width(console, console.options).normalize().maximum
return max(0, render_width)
return default
render_width = get_console_width(console, console.options).maximum
width = max(0, render_width)
return width

36
src/textual/widget.py
View File

@@ -87,8 +87,13 @@ class Widget(DOMNode):
COMPONENT_CLASSES: ClassVar[set[str]] = set()
can_focus: bool = False
"""Widget may receive focus."""
can_focus_children: bool = True
fluid = Reactive(True)
"""Widget's children may receive focus."""
expand = Reactive(True)
"""Rich renderable may expand."""
shrink = Reactive(True)
"""Rich renderable may shrink."""
def __init__(
self,
@@ -237,26 +242,6 @@ class Widget(DOMNode):
"""Clear arrangement cache, forcing a new arrange operation."""
self._arrangement = None
def watch_show_horizontal_scrollbar(self, value: bool) -> None:
"""Watch function for show_horizontal_scrollbar attribute.
Args:
value (bool): Show horizontal scrollbar flag.
"""
if not value:
# reset the scroll position if the scrollbar is hidden.
self.scroll_to(0, 0, animate=False)
def watch_show_vertical_scrollbar(self, value: bool) -> None:
"""Watch function for show_vertical_scrollbar attribute.
Args:
value (bool): Show vertical scrollbar flag.
"""
if not value:
# reset the scroll position if the scrollbar is hidden.
self.scroll_to(0, 0, animate=False)
def mount(self, *anon_widgets: Widget, **widgets: Widget) -> None:
"""Mount child widgets (making this widget a container).
@@ -350,7 +335,9 @@ class Widget(DOMNode):
renderable = self._render()
width = measure(console, renderable, container.width)
if self.fluid:
if self.expand:
width = max(container.width, width)
if self.shrink:
width = min(width, container.width)
self._content_width_cache = (cache_key, width)
@@ -514,6 +501,11 @@ class Widget(DOMNode):
elif overflow_y == "auto":
show_vertical = self.virtual_size.height > height
if overflow_x == "auto" and show_vertical and not show_horizontal:
show_horizontal = (
self.virtual_size.width + styles.scrollbar_size_vertical > width
)
self.show_horizontal_scrollbar = show_horizontal
self.show_vertical_scrollbar = show_vertical
self.horizontal_scrollbar.display = show_horizontal

10
src/textual/widgets/_static.py
View File

@@ -31,7 +31,8 @@ class Static(Widget):
Args:
renderable (RenderableType, optional): A Rich renderable, or string containing console markup.
Defaults to "".
fluid (bool, optional): Enable fluid content (adapts to size of window). Defaults to True.
expand (bool, optional): Rich renderable may expand beyond optimal. Defaults to False.
shrink (bool, optional): Rich renderable may shrink below optional. Defaults to False.
name (str | None, optional): Name of widget. Defaults to None.
id (str | None, optional): ID of Widget. Defaults to None.
classes (str | None, optional): Space separated list of class names. Defaults to None.
@@ -43,14 +44,14 @@ class Static(Widget):
}
"""
fluid = reactive(True, layout=True)
_renderable: RenderableType
def __init__(
self,
renderable: RenderableType = "",
*,
fluid: bool = True,
expand: bool = False,
shrink: bool = False,
markup: bool = True,
name: str | None = None,
id: str | None = None,
@@ -58,7 +59,8 @@ class Static(Widget):
) -> None:
super().__init__(name=name, id=id, classes=classes)
self.fluid = fluid
self.expand = expand
self.shrink = shrink
self.markup = markup
self.renderable = renderable
_check_renderable(renderable)

4
tests/test_animator.py
View File

@@ -60,7 +60,7 @@ def test_simple_animation():
assert animate_test.foo == 40.0
assert animation(time + 2.9) is False # Not quite final value
assert pytest.approx(animate_test.foo, 49.0)
assert animate_test.foo == pytest.approx(49.0)
assert animation(time + 3.0) is True # True to indicate animation is complete
assert animate_test.foo is None # This is final_value
@@ -161,7 +161,7 @@ def test_animatable():
assert animate_test.bar.value == 40.0
assert animation(time + 2.9) is False
assert pytest.approx(animate_test.bar.value, 49.0)
assert animate_test.bar.value == pytest.approx(49.0)
assert animation(time + 3.0) is True # True to indicate animation is complete
assert animate_test.bar.value == 50.0

7
tests/test_integration_layout.py
View File

@@ -271,12 +271,6 @@ async def test_border_edge_types_impact_on_widget_size(
("overflow: auto", "scrollbar-size-horizontal: 3"),
Size(20 - SCROLL_V_SIZE, 20 - 3),
],
# scrollbar needed only vertically, custom scrollbar size
[
Size(20, 30),
("overflow: auto", "scrollbar-size: 3 3"),
Size(20 - 3, 20),
],
# scrollbar needed only horizontally, custom scrollbar size
[
Size(30, 20),
@@ -314,6 +308,7 @@ async def test_scrollbar_size_impact_on_the_layout(
)
large_widget = LargeWidget()
large_widget.expand = False
container = LargeWidgetContainer(large_widget, id="large-widget-container")
class MyTestApp(AppTest):

2
tests/test_widget.py
View File

@@ -37,7 +37,9 @@ def test_widget_content_width():
class TextWidget(Widget):
def __init__(self, text: str, id: str) -> None:
self.text = text
super().__init__(id=id)
self.expand = False
def render(self) -> str:
return self.text