This reverts commit efba2cbfd3.
Unfortunately, the Docker image for 1.89 has not shown up yet. Once it
has, we should re-land this.
Release Notes:
- N/A
**Clipboard Behavior on Windows Under This PR:**
| User Action | Zed’s Behavior |
| ------------------- |
-------------------------------------------------- |
| Paste PNG | Worked |
| Paste JPEG | Worked |
| Paste WebP | Worked, but not in the way you expect (see Issue section
below) |
| Paste GIF | Partially worked (see Issue section below) |
| Paste SVG | Partially worked (see Issue section below) |
| Paste BMP | Worked, but not in the way you expect (see Issue section
below) |
| Paste TIFF | Worked, but not in the way you expect (see Issue section
below) |
| Paste Files | Worked, same behavior as macOS |
| Copy image in Zed | Not tested, as I couldn’t find a way to copy
images |
---
**Differences Between the Windows and macOS Clipboard**
The clipboard functionality on Windows differs significantly from macOS.
On macOS, there can be multiple items in the clipboard, whereas, on
Windows, the clipboard holds only a single item. You can retrieve
different formats from the clipboard, but they are all just different
representations of the same item.
For example, when you copy a JPG image from Microsoft Word, the
clipboard will contain data in several formats:
- Microsoft Office proprietary data
- JPG format data
- PNG format data
- SVG format data
Please note that these formats all represent the same image, just in
different formats. This is due to compatibility concerns on Windows, as
various applications support different formats. Ideally, multiple
formats should be placed on the clipboard to support more software.
However, in general, supporting PNG will cover 99% of software, like
Chrome, which only supports PNG and BMP formats.
Additionally, since the clipboard on Windows only contains a single
item, special handling is required when copying multiple objects, such
as text and images. For instance, if you copy both text and an image
simultaneously in Microsoft Word, Microsoft places the following data on
the clipboard:
- Microsoft Office proprietary data containing a lot of content such as
text fonts, sizes, italics, positioning, image size, content, etc.
- RTF data representing the above content in RTF format
- HTML data representing the content in HTML format
- Plain text data
Therefore, for the current `ClipboardItem` implementation, if there are
multiple `ClipboardEntry` objects to be placed on the clipboard, RTF or
HTML formats are required. This PR does not support this scenario, and
only supports copying or pasting a single item from the clipboard.
---
**Known Issues**
- **WebP, BMP, TIFF**: These formats are not explicitly supported in
this PR. However, as mentioned earlier, in most cases, there are
corresponding PNG format data on the clipboard. This PR retrieves data
via PNG format, so users copying images in these formats from other
sources will still see the images displayed correctly.
- **GIF**: In this PR, GIFs are displayed, but for GIF images with
multiple frames, the image will not animate and will freeze on a single
frame. Since I observed the same behavior on macOS, I believe this is
not an issue with this PR.
- **SVG**: In this PR, only the top-left corner of the SVG image is
displayed. Again, I observed the same behavior on macOS, so I believe
this issue is not specific to this PR.
---
I hope this provides a clearer understanding. Any feedback or
suggestions on how to improve this are welcome.
Release Notes:
- N/A
