Aaron Bohy
dc2be03dba
The jSignature lib is only used by the NameAndSignature component, which is not accessible on a many screens. This commit thus removes the lib and its extension from the bundles, and makes the NameAndSignature component load it on demand. Part of task~3439226 closes odoo/odoo#138054 Related: odoo/enterprise#48633 Signed-off-by: Samuel Degueldre (sad) <sad@odoo.com>
50 lines
2.0 KiB
JavaScript
50 lines
2.0 KiB
JavaScript
function _renderImageOnCanvas( data, formattype, rerendercallable ) {
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'use strict'
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// #1. Do NOT rely on this. No worky on IE
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// (url max len + lack of base64 decoder + possibly other issues)
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// #2. This does NOT affect what is captured as "signature" as far as vector data is
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// concerned. This is treated same as "signature line" - i.e. completely ignored
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// the only time you see imported image data exported is if you export as image.
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// we do NOT call rerendercallable here (unlike in other import plugins)
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// because importing image does absolutely nothing to the underlying vector data storage
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// This could be a way to "import" old signatures stored as images
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// This could also be a way to import extra decor into signature area.
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// Odoo override:
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// If a signature is saved in mobile resolution, when the user tries to sign a document in desktop, the size that is shown is the mobile size, which is strange for the user.
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// This modifies the library method that adds the image to the canvas, resizing the image to the canvas size, keeping the image ratio and showing it centered.
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var img = new Image()
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// this = Canvas DOM elem. Not jQuery object. Not Canvas's parent div.
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, c = this;
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img.onload = function () {
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var ctx = c.getContext("2d");
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var oldShadowColor = ctx.shadowColor;
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ctx.shadowColor = "transparent";
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var ratio = ((img.width / img.height) > (c.width / c.height)) ? c.width / img.width : c.height / img.height;
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ctx.drawImage(
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img,
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(c.width / 2) - (img.width * ratio / 2),
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(c.height / 2) - (img.height * ratio / 2)
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, img.width * ratio
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, img.height * ratio
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);
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ctx.shadowColor = oldShadowColor;
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};
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img.src = 'data:' + formattype + ',' + data;
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}
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// Override
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// Supported image types
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[
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'image',
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'image/png;base64',
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'image/jpeg;base64',
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'image/jpg;base64',
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].forEach(imageType => $.fn.jSignature("addPlugin", "import", imageType, _renderImageOnCanvas));
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