- in using the global clipboard, it'll be possible to copy from a
pdf and paste in an other one;
- it'll allow to edit a previously created annotation;
- copy the editors in the current page.
Previously it was created only on mouseover event but on a touch screen
there are no fingerover event...
The idea behind creating the ink editor on mouseover was to avoid to have
a canvas on each visible page.
So now, when the editor is created, the canvas has dimensions 1x1 and
only when the user starts drawing the dimensions are set to the page ones.
- and because of rounding errors it led to slightly resize again and again
the ink container;
- when zooming the size is changing but not the ratio, so in this case we
don't need to change the dimension of the container.
Rather than including all of this external code in the PDF.js repository, we should be using the npm package instead.
Unfortunately this is slightly more complicated than you'd hope, since the `fit-curve` package (which is older) isn't directly compatible with modern JavaScript modules.
In particular, the following cases needed to be considered:
- For the development viewer (i.e. `gulp server`) and the unit-tests, we thus need to build a fitCurve-bundle that can be directly `import`ed.
- For the actual PDF.js build-targets, we can slightly reduce the sizes by depending on the "raw" `fit-curve` source-code.
- For the Node.js unit-tests, the `fit-curve` package can be used as-is.
- this way the context menu in Firefox can take into account what we
have in the clipboard, if an editor is selected, ...
- when the user will click on a context menu item, an action will be
triggered, hence this patch adds what is required to handle it;
- some tests will be added in the Firefox' patch.
- for example in Dusk theme (Windows 11), black appears to be white, so
the user will draw something in white. But if they want to print or
save the used color must be black.
- fix a bug with the color input which only accepts hex string colors;
- adjust outline color of the selected/hovered editors in HCM.
- As in the annotation layer, use percent instead of pixels as unit;
- handle the rotation of the editor layer in allowing editing when rotation
angle is not zero;
- the different editors are rotated counterclockwise in order to be usable
when the main page is itself rotated;
- add support for saving/printing rotated editors.
- Right now, we must select the tool, then click to select a page and
click to start drawing and it's a bit painful;
- so just create a new ink editor when we're hovering a page without one.
- Approximate the drawn curve by a set of Bezier curves in using
js code from https://github.com/soswow/fit-curves.
The code has been slightly modified in order to make the linter
happy.
