Use `ResizeObserver` to control the size of the canvas #2074

Liamolucko · 2021-11-27T00:10:11Z

Tested on all platforms changed

Specifically on Firefox Developer Edition and Safari.

Compilation warnings were addressed
cargo fmt has been run on this branch
cargo doc builds successfully
Added an entry to CHANGELOG.md if knowledge of this change could be valuable to users
Updated documentation to reflect any user-facing changes, including notes of platform-specific behavior
Created or updated an example program if it would help users understand this functionality
~~Updated feature matrix, if new features were added or implemented~~

Resolves #1661

I've changed the web backend to set the window size entirely based on the canvas' CSS size using ResizeObserver. It uses device-pixel-content-box where available, but falls back on ResizeObserverEntry.contentRect if it's not supported.

One issue is how to handle the window's initial size. ResizeObserver does fire an event for the initial size when created, but it won't run until the task finishes, which means it isn't available for any init code before the event loop starts. I've worked around this by just getting the element's computed size and subtracting padding, and using that to estimate its size for the initial inner_size value, but this doesn't work at all if the canvas is created by winit and then added to the DOM. If a canvas isn't in the DOM, its size is reported as 0, so if the canvas is created this way its initial size will always be 0.

At the moment this has to pull in a git version of web-sys and enable cfg(web_sys_unstable_apis), so it can't really be shipped. The API does seem to be supported in pretty much all modern browsers, but it's marked unstable since it's a draft.

To-do

Wait for web-sys to release a new version
Either wait for ResizeObserver to be stabilised or feature gate this somehow

Unresolved questions

Should this be hidden behind a mode, instead of always enabled? Applications which already resize manually using set_inner_size should work functionally identically anyway; this should only really affect things which don't touch the size at all.
Should setting min/max size set the CSS min/max-width/height properties?
Should outer size refer to the canvas' border box? Now that CSS can be freely applied to the canvas, it's possible for it to have padding or borders, in which case the element's outer size might not be the same as its content size.

maxammann · 2021-12-11T21:40:31Z

Looks very cool! Let me know if you need help testing.

rukai · 2021-12-23T02:57:46Z

I tried this branch on my app and my app blows up in wgpu because I'm giving it a window with size of 0x0.
Maybe we should we be respecting https://docs.rs/winit/latest/winit/window/struct.Window.html#method.set_min_inner_size or at least hardcode a minimum size of 1x1 ?

Would also be good to rebase, to make using the PR via [patch.crates-io] easier.

You can reproduce the problem by cloning https://github.com/rukai/wgpu/tree/resize_observer
and then running ./run-wasm-example.sh hello-triangle webgl

Liamolucko · 2022-01-07T01:38:40Z

I tried this branch on my app and my app blows up in wgpu because I'm giving it a window with size of 0x0. Maybe we should we be respecting https://docs.rs/winit/latest/winit/window/struct.Window.html#method.set_min_inner_size or at least hardcode a minimum size of 1x1 ?

That issue was occuring because the window's initial size was being measured in Window::new, before the canvas was added to the DOM. At that point, the canvas's size is reported as 0x0. To work around that, I've changed it to measure the canvas's initial size on the first call to Window::inner_size instead, if it isn't in the DOM during Window::new.

maroider · 2022-01-09T15:12:48Z

Maybe we should we be respecting https://docs.rs/winit/latest/winit/window/struct.Window.html#method.set_min_inner_size or at least hardcode a minimum size of 1x1?

Getting resize events that tell you the window is 0x0 is currently expected behaviour, so user code generally has to check for it before passing the size on to wgpu anyway. This is, however, a common stumbling block, so maybe there's room for changing the API to guide users toward something that works by default.

stephanemagnenat · 2022-02-15T16:05:14Z

Any status update on this PR? The bug it solves is likely to hit pretty much everyone using Rust with GPU on the web (through Bevy or something else), so even an imperfect implementation that relies on some unstable-but-widely-available feature is certainly much better than the status quo.

rukai · 2022-02-20T04:36:49Z

I tested again and it now works perfectly for my application!

Thanks so much for implementing this, I would love to see it merged under a feature flag before ResizeObserver is stabilized.

For anyone else wanting to make use of this, here is the html, css and rust I used to get value out of this.
The result is a winit app that fills all the available horizontal space at a 4/3 aspect ratio.

<div id="render">
    <canvas gets inserted here by rust code>
</div>

#render {
    width: 100%;
    aspect-ratio: 4 / 3;
}

        let window = Window::new(&event_loop).unwrap();

        let canvas = window.canvas();
        canvas
            .style()
            .set_css_text("display: block; width: 100%; height: 100%");

        document.get_element_by_id("render").unwrap()
            .append_child(&web_sys::Element::from(canvas))
            .unwrap();

maroider · 2022-02-24T08:56:28Z

Given that the spec for the API in question is still a "working draft", I'm a bit hesitant to enable it by default, despite its "wide availablity".

Liamolucko · 2022-02-25T07:21:53Z

I've put the ResizeObserver functionality behind a css-size feature, so that this can be used without everyone having to enable cfg(web_sys_unstable_apis).

I've noticed a bit of an issue, though - if the scale factor is changed before the event loop starts, it'll panic, since it tries to handle the event synchronously when the event loop isn't running. It used to just not check for them at all before the event loop started, but that's not great either. How do other platforms handle this?

Currently Bevy's web canvases are "fixed size". They are manually set to specific dimensions. This might be fine for some games and website layouts, but for sites with flexible layouts, or games that want to "fill" the browser window, Bevy doesn't provide the tools needed to make this easy out of the box. There are third party plugins like [bevy-web-resizer](https://github.com/frewsxcv/bevy-web-resizer/) that listen for window resizes, take the new dimensions, and resize the winit window accordingly. However this only covers a subset of cases and this is common enough functionality that it should be baked into Bevy. A significant motivating use case here is the [Bevy WASM Examples page](https://bevyengine.org/examples/). This scales the canvas to fit smaller windows (such as mobile). But this approach both breaks winit's mouse events and removes pixel-perfect rendering (which means we might be rendering too many or too few pixels). bevyengine/bevy-website#371 In an ideal world, winit would support this behavior out of the box. But unfortunately that seems blocked for now: rust-windowing/winit#2074. And it builds on the ResizeObserver api, which isn't supported in all browsers yet (and is only supported in very new versions of the popular browsers). While we wait for a complete winit solution, I've added a `fit_canvas_to_parent` option to WindowDescriptor / Window, which when enabled will listen for window resizes and resize the Bevy canvas/window to fit its parent element. This enables users to scale bevy canvases using arbitrary CSS, by "inheriting" their parents' size. Note that the wrapper element _is_ required because winit overrides the canvas sizing with absolute values on each resize. There is one limitation worth calling out here: while the majority of canvas resizes will be triggered by window resizes, modifying element layout at runtime (css animations, javascript-driven element changes, dev-tool-injected changes, etc) will not be detected here. I'm not aware of a good / efficient event-driven way to do this outside of the ResizeObserver api. In practice, window-resize-driven canvas resizing should cover the majority of use cases. Users that want to actively poll for element resizes can just do that (or we can build another feature and let people choose based on their specific needs). I also took the chance to make a couple of minor tweaks: * Made the `canvas` window setting available on all platforms. Users shouldn't need to deal with cargo feature selection to support web scenarios. We can just ignore the value on non-web platforms. I added documentation that explains this. * Removed the redundant "initial create windows" handler. With the addition of the code in this pr, the code duplication was untenable. This enables a number of patterns: ## Easy "fullscreen window" mode for the default canvas The "parent element" defaults to the `<body>` element. ```rust app .insert_resource(WindowDescriptor { fit_canvas_to_parent: true, ..default() }) ``` And CSS: ```css html, body { margin: 0; height: 100%; } ``` ## Fit custom canvas to "wrapper" parent element ```rust app .insert_resource(WindowDescriptor { fit_canvas_to_parent: true, canvas: Some("#bevy".to_string()), ..default() }) ``` And the HTML: ```html <div style="width: 50%; height: 100%"> <canvas id="bevy"></canvas> </div> ```

…gine#4726) Currently Bevy's web canvases are "fixed size". They are manually set to specific dimensions. This might be fine for some games and website layouts, but for sites with flexible layouts, or games that want to "fill" the browser window, Bevy doesn't provide the tools needed to make this easy out of the box. There are third party plugins like [bevy-web-resizer](https://github.com/frewsxcv/bevy-web-resizer/) that listen for window resizes, take the new dimensions, and resize the winit window accordingly. However this only covers a subset of cases and this is common enough functionality that it should be baked into Bevy. A significant motivating use case here is the [Bevy WASM Examples page](https://bevyengine.org/examples/). This scales the canvas to fit smaller windows (such as mobile). But this approach both breaks winit's mouse events and removes pixel-perfect rendering (which means we might be rendering too many or too few pixels). bevyengine/bevy-website#371 In an ideal world, winit would support this behavior out of the box. But unfortunately that seems blocked for now: rust-windowing/winit#2074. And it builds on the ResizeObserver api, which isn't supported in all browsers yet (and is only supported in very new versions of the popular browsers). While we wait for a complete winit solution, I've added a `fit_canvas_to_parent` option to WindowDescriptor / Window, which when enabled will listen for window resizes and resize the Bevy canvas/window to fit its parent element. This enables users to scale bevy canvases using arbitrary CSS, by "inheriting" their parents' size. Note that the wrapper element _is_ required because winit overrides the canvas sizing with absolute values on each resize. There is one limitation worth calling out here: while the majority of canvas resizes will be triggered by window resizes, modifying element layout at runtime (css animations, javascript-driven element changes, dev-tool-injected changes, etc) will not be detected here. I'm not aware of a good / efficient event-driven way to do this outside of the ResizeObserver api. In practice, window-resize-driven canvas resizing should cover the majority of use cases. Users that want to actively poll for element resizes can just do that (or we can build another feature and let people choose based on their specific needs). I also took the chance to make a couple of minor tweaks: * Made the `canvas` window setting available on all platforms. Users shouldn't need to deal with cargo feature selection to support web scenarios. We can just ignore the value on non-web platforms. I added documentation that explains this. * Removed the redundant "initial create windows" handler. With the addition of the code in this pr, the code duplication was untenable. This enables a number of patterns: ## Easy "fullscreen window" mode for the default canvas The "parent element" defaults to the `<body>` element. ```rust app .insert_resource(WindowDescriptor { fit_canvas_to_parent: true, ..default() }) ``` And CSS: ```css html, body { margin: 0; height: 100%; } ``` ## Fit custom canvas to "wrapper" parent element ```rust app .insert_resource(WindowDescriptor { fit_canvas_to_parent: true, canvas: Some("#bevy".to_string()), ..default() }) ``` And the HTML: ```html <div style="width: 50%; height: 100%"> <canvas id="bevy"></canvas> </div> ```

rukai · 2022-07-10T08:39:22Z

From looking at the table here: https://developer.mozilla.org/en-US/docs/Web/API/Resize_Observer_API#browser_compatibility
It looks like all the unstable API's we need have been stabilized?
Can wasm-bindgen be updated accordingly and this PR progressed?

Maybe wasm-bindgen has stronger requirements for it to be considered stable though...?

Liamolucko · 2022-07-10T09:23:04Z

It was marked unstable because the spec is a 'Working Draft', which isn't technically a real spec yet. web-sys already has plenty of Working Drafts not marked unstable, though (e.g. the File API), so I think it'd be fine to stabilize it.

src/platform_impl/web/web_sys/mod.rs

rukai · 2022-09-04T11:07:05Z

#2209 has merged, so it would be good to rebase/merge to make it easy to test on the new example.

… `inner_size` doesn't get called.

src/window.rs

marcofugaro · 2022-11-16T15:49:12Z

This is indispensable for any canvas application compiled to wasm, any progress?

… resize-observer2

madsmtm

I gave parts of it a cursory look, but this is a huge change and I'm not well-versed enough in web technologies to really tell if things are correct or not.

Sadly, we currently don't have a maintainer for the web platform, so the best way forwards @marcofugaro and other interested parties, would be to review the changeset with your detail-oriented eyes on (adding a simple "approving" review via. GitHub is also data), and test it in edge-cases (e.g. also when the css-size feature is not enabled, or when changing monitors and the like).

That would give me more confidence that the change is correct, and I would be much more willing to merge it then.

madsmtm · 2023-01-21T18:09:54Z

src/platform_impl/web/web_sys/mod.rs

+        let prop = |name| -> f64 {
+            let value = style.get_property_value(name).unwrap();
+            // Cut off the last two characters to remove the `px` from the end.
+            value[..value.len() - 2].parse().unwrap()
+        };


Nit: Deduplicate this helper closure into a function (since it's the same as above).

madsmtm · 2023-01-21T18:10:32Z

src/platform_impl/web/web_sys/mod.rs

+    let window = web_sys::window().unwrap();
+    let style = window
+        .get_computed_style(raw)
+        // This can't fail according to the spec; I don't know why web-sys marks it as throwing and having an optional result.


Perhaps we should open an issue in web-sys about it, then?

madsmtm · 2023-01-21T18:14:08Z

src/platform_impl/web/event_loop/window_target.rs

+                        // I don't think it's possible for an element to become fullscreen whilst not being in the DOM.
+                        .unwrap()


Nit: Use expect with such a message instead

madsmtm · 2023-01-21T18:31:10Z

src/platform_impl/web/event_loop/runner.rs

-        if self.0.all_canvases.borrow().is_empty() {
+    /// Handle a change in scale factor, without any other information.
+    ///
+    /// `initial` is whether this is coming from the initial `ScaleChangeDetector`, rather than the `ResizeObserver`.


Flags like this is IMHO usually bad practice, perhaps things can be refactored slightly to avoid it? (concretely: I have trouble immediately parsing the !(initial && observer_will_run) conditional).

…gine#4726) Currently Bevy's web canvases are "fixed size". They are manually set to specific dimensions. This might be fine for some games and website layouts, but for sites with flexible layouts, or games that want to "fill" the browser window, Bevy doesn't provide the tools needed to make this easy out of the box. There are third party plugins like [bevy-web-resizer](https://github.com/frewsxcv/bevy-web-resizer/) that listen for window resizes, take the new dimensions, and resize the winit window accordingly. However this only covers a subset of cases and this is common enough functionality that it should be baked into Bevy. A significant motivating use case here is the [Bevy WASM Examples page](https://bevyengine.org/examples/). This scales the canvas to fit smaller windows (such as mobile). But this approach both breaks winit's mouse events and removes pixel-perfect rendering (which means we might be rendering too many or too few pixels). bevyengine/bevy-website#371 In an ideal world, winit would support this behavior out of the box. But unfortunately that seems blocked for now: rust-windowing/winit#2074. And it builds on the ResizeObserver api, which isn't supported in all browsers yet (and is only supported in very new versions of the popular browsers). While we wait for a complete winit solution, I've added a `fit_canvas_to_parent` option to WindowDescriptor / Window, which when enabled will listen for window resizes and resize the Bevy canvas/window to fit its parent element. This enables users to scale bevy canvases using arbitrary CSS, by "inheriting" their parents' size. Note that the wrapper element _is_ required because winit overrides the canvas sizing with absolute values on each resize. There is one limitation worth calling out here: while the majority of canvas resizes will be triggered by window resizes, modifying element layout at runtime (css animations, javascript-driven element changes, dev-tool-injected changes, etc) will not be detected here. I'm not aware of a good / efficient event-driven way to do this outside of the ResizeObserver api. In practice, window-resize-driven canvas resizing should cover the majority of use cases. Users that want to actively poll for element resizes can just do that (or we can build another feature and let people choose based on their specific needs). I also took the chance to make a couple of minor tweaks: * Made the `canvas` window setting available on all platforms. Users shouldn't need to deal with cargo feature selection to support web scenarios. We can just ignore the value on non-web platforms. I added documentation that explains this. * Removed the redundant "initial create windows" handler. With the addition of the code in this pr, the code duplication was untenable. This enables a number of patterns: ## Easy "fullscreen window" mode for the default canvas The "parent element" defaults to the `<body>` element. ```rust app .insert_resource(WindowDescriptor { fit_canvas_to_parent: true, ..default() }) ``` And CSS: ```css html, body { margin: 0; height: 100%; } ``` ## Fit custom canvas to "wrapper" parent element ```rust app .insert_resource(WindowDescriptor { fit_canvas_to_parent: true, canvas: Some("#bevy".to_string()), ..default() }) ``` And the HTML: ```html <div style="width: 50%; height: 100%"> <canvas id="bevy"></canvas> </div> ```

toji · 2023-04-29T02:53:30Z

Given that the spec for the API in question is still a "working draft", I'm a bit hesitant to enable it by default, despite its "wide availablity".

Pointed here from a conversation on Mastodon. I know effectively nothing about Rust but I am the editor of one or two web standards, so I figured I could help clarify this point at least.

A spec being a "Working Draft" doesn't mean much in terms of how stable, widespread, or standardized the specification has become. Ideally the spec authors want their specification to be granted "Candidate Recommendation" (CR) status by the W3C, but that typically isn't even considered until at least two independent browsers have been shipping compatible implementations of the feature for at least a little while. And even the spec moving from Draft to CR status is a formality that has no real bearing on how browsers, developers, or users approach the feature.

What this means for developers is that CanIUse.com is a far more practical reference than the spec documents for determining what is actually shipped and stable. In this specific case ResizeObserver has been ~universally available since Jan 2020, and is definitely not going to be removed from the web platform or see any breaking changes in the foreseeable future. Chrome usage stats show that over 20% of web pages that users load make use of ResizeObserver, and nobody is eager to break 20% of the web, regardless of whether the spec says "Draft" at the top or not.

Hope that helps clear up some of the (admittedly confusing) verbiage around web specs!

mcclure · 2023-04-29T03:01:54Z

It appears that this code has been working for over a year and the ResizeObserver "draft" API has been unchanged for over three years. Caniuse has ResizeObserver working on everything except IE11.

I was hoping to release some wgpu sample code before Chrome's initial release of webgpu next week (?). --cfg=web_sys_unstable_apis is not a problem for this application because the whole of webgpu is unstable.
This PR is somewhere between useful and essential for practical webgpu use. I set the version of winit in my sample code's Cargo.toml ( https://github.com/mcclure/rs-hello 2b3303b / https://data.runhello.com/j/wgpu/2/) to directly pull this branch from github and as-is the PR works great (although it's too bad because I think this means I'm basing my code on a version of winit older than 0.28.3?). I can't speak to your package's stability policy but is there a way some version of this could get into shipping winit versions? The feature is a very good one.

Thanks!

maroider · 2023-05-17T06:23:20Z

Thanks for the clarification, @toji. If anyone is willing to pick up work on this again (merge conflicts and whatnot), then I'd be happy to see us use ResizeObserver by default.

I can't speak to your package's stability policy but is there a way some version of this could get into shipping winit versions?

If I'm not mistaken, some fixes do get back-ported, but I don't recall the criteria for it.

daxpedda · 2023-05-17T09:36:06Z

I'm happy to get this PR sorted out and rebased after #2789.

mcclure · 2023-05-17T14:27:57Z

Awesome!

If I'm not mistaken, some fixes do get back-ported, but I don't recall the criteria for it.

Sorry, I meant "can it get in a future shipping version", not that I needed it compatible with any specific shipping version.

daxpedda · 2023-06-05T12:54:00Z

I think the big problem right now is how to deal with --cfg=web_sys_unstable_apis, it's a pretty terrible user experience, though I wouldn't mind still going through with this as long as it's gated behind that instead of introducing a crate feature that requires it.

I made rustwasm/wasm-bindgen#3459 to avoid this whole issue though. So we should probably wait for that.

daxpedda · 2023-06-07T20:09:54Z

Replaced by #2859.

Currently Bevy's web canvases are "fixed size". They are manually set to specific dimensions. This might be fine for some games and website layouts, but for sites with flexible layouts, or games that want to "fill" the browser window, Bevy doesn't provide the tools needed to make this easy out of the box. There are third party plugins like [bevy-web-resizer](https://github.com/frewsxcv/bevy-web-resizer/) that listen for window resizes, take the new dimensions, and resize the winit window accordingly. However this only covers a subset of cases and this is common enough functionality that it should be baked into Bevy. A significant motivating use case here is the [Bevy WASM Examples page](https://bevyengine.org/examples/). This scales the canvas to fit smaller windows (such as mobile). But this approach both breaks winit's mouse events and removes pixel-perfect rendering (which means we might be rendering too many or too few pixels). bevyengine/bevy-website#371 In an ideal world, winit would support this behavior out of the box. But unfortunately that seems blocked for now: rust-windowing/winit#2074. And it builds on the ResizeObserver api, which isn't supported in all browsers yet (and is only supported in very new versions of the popular browsers). While we wait for a complete winit solution, I've added a `fit_canvas_to_parent` option to WindowDescriptor / Window, which when enabled will listen for window resizes and resize the Bevy canvas/window to fit its parent element. This enables users to scale bevy canvases using arbitrary CSS, by "inheriting" their parents' size. Note that the wrapper element _is_ required because winit overrides the canvas sizing with absolute values on each resize. There is one limitation worth calling out here: while the majority of canvas resizes will be triggered by window resizes, modifying element layout at runtime (css animations, javascript-driven element changes, dev-tool-injected changes, etc) will not be detected here. I'm not aware of a good / efficient event-driven way to do this outside of the ResizeObserver api. In practice, window-resize-driven canvas resizing should cover the majority of use cases. Users that want to actively poll for element resizes can just do that (or we can build another feature and let people choose based on their specific needs). I also took the chance to make a couple of minor tweaks: * Made the `canvas` window setting available on all platforms. Users shouldn't need to deal with cargo feature selection to support web scenarios. We can just ignore the value on non-web platforms. I added documentation that explains this. * Removed the redundant "initial create windows" handler. With the addition of the code in this pr, the code duplication was untenable. This enables a number of patterns: ## Easy "fullscreen window" mode for the default canvas The "parent element" defaults to the `<body>` element. ```rust app .insert_resource(WindowDescriptor { fit_canvas_to_parent: true, ..default() }) ``` And CSS: ```css html, body { margin: 0; height: 100%; } ``` ## Fit custom canvas to "wrapper" parent element ```rust app .insert_resource(WindowDescriptor { fit_canvas_to_parent: true, canvas: Some("#bevy".to_string()), ..default() }) ``` And the HTML: ```html <div style="width: 50%; height: 100%"> <canvas id="bevy"></canvas> </div> ```

Liamolucko changed the title ~~Resize observer2~~ Use ResizeObserver to control the size of the canvas Nov 27, 2021

maroider added the DS - web label Dec 11, 2021

Liamolucko force-pushed the resize-observer2 branch from 938841f to 2ead256 Compare January 6, 2022 00:21

Liamolucko force-pushed the resize-observer2 branch from 3206272 to caaa91b Compare February 25, 2022 06:47

Liamolucko marked this pull request as ready for review February 25, 2022 07:15

maroider added the C - waiting on maintainer A maintainer must review this code label Feb 25, 2022

maroider self-requested a review February 25, 2022 07:23

rukai mentioned this pull request Feb 26, 2022

Add web_aspect_ratio example #2209

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Liamolucko force-pushed the resize-observer2 branch from 8134ace to 7852e1b Compare February 27, 2022 07:00

frewsxcv mentioned this pull request Mar 21, 2022

Allow canvas size to be controlled by page layout on web target #1661

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This was referenced May 11, 2022

Canvas scaling on the example pages breaks mouse click events bevyengine/bevy-website#371

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[Merged by Bors] - Optionally resize Window canvas element to fit parent element bevyengine/bevy#4726

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Liamolucko force-pushed the resize-observer2 branch from 67f7ea6 to 5e926cf Compare July 12, 2022 04:49

maroider mentioned this pull request Jul 12, 2022

Web touch event #2188

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jwagner reviewed Aug 31, 2022

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rukai mentioned this pull request Sep 5, 2022

canvas dimensions are broken in 0.19 emilk/egui#1947

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Liamolucko added 8 commits September 5, 2022 18:05

Use ResizeObserver to control the size of the canvas

f5e3d77

Fix the changelog and add some documentation

f9a540b

Fix leak of ScaleChangeDetector and some unnecessary changes

63e15e0

Improve docs and make sure the first Resize event is always sent if…

10bd65c

… `inner_size` doesn't get called.

Fix outdated reference to Id

d1193e9

fix typo

22fa26e

Make inner_size a bit more robust

2c59062

Add a note about display: contents

a1a1210

Liamolucko force-pushed the resize-observer2 branch from 570b05e to a1a1210 Compare September 5, 2022 08:08

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Liamolucko added 2 commits November 17, 2022 13:40

Merge branch 'master' into resize-observer2

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Merge branch 'master' of https://github.com/rust-windowing/winit into…

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… resize-observer2

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silverlyra mentioned this pull request Mar 21, 2023

On web, the window module always resizes the <canvas> asny/three-d#339

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daxpedda mentioned this pull request Jun 5, 2023

Stabilize ResizeObserver rustwasm/wasm-bindgen#3459

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daxpedda mentioned this pull request Jun 7, 2023

Implement ResizeObserver #2859

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toji commented Apr 29, 2023

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daxpedda commented Jun 7, 2023

		// I don't think it's possible for an element to become fullscreen whilst not being in the DOM.
		.unwrap()

Use ResizeObserver to control the size of the canvas #2074

Use ResizeObserver to control the size of the canvas #2074

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Liamolucko commented Nov 27, 2021 • edited Loading

To-do

Unresolved questions

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toji commented Apr 29, 2023

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daxpedda commented Jun 7, 2023

Use `ResizeObserver` to control the size of the canvas #2074

Use `ResizeObserver` to control the size of the canvas #2074

Liamolucko commented Nov 27, 2021 •

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rukai commented Dec 23, 2021 •

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maroider commented Jan 9, 2022 •

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rukai commented Jul 10, 2022 •

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daxpedda commented Jun 5, 2023 •

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