CursorLib: generates cursors from canvas

CursorLib generates cursors that works on any browser (Firefox, MSIE, Chrome,...) from canvas.

Getting a CSS cursor compatible with the current browser

var cursor = cursorLib.canvasToCssCursorProperty(
    canvas,     // The canvas where is drawn the cursor (128px × 128px maximum).
    hotspotX,   // Horizontal coordinates of the hotspot (optional, default=0).
    hotspotY,   // Vertical coordinates of the hotspot (optional, default=0).
    alternative // Alternative cursor if the image is not supported (optional, default="default").
);

document.getElementById("my-element").style.cursor = cursor;

Generating a Microsoft cursor Blob

NOTE: This is only useful if you want to export cursors for Windows/MSIE. CursorLib generates automatically the right cursor format for the current browser when you call the cursorLib.canvasToCssCursorProperty function.

var msCursorBlob = cursorLib.canvasToMsCursor(
    canvas,     // The canvas where is drawn the cursor (256px × 256px maximum).
    hotspotX,   // Horizontal coordinates of the hotspot (optional, default=0).
    hotspotY    // Vertical coordinates of the hotspot (optional, default=0).
);

License

Copyright (c) 2014, Wanadev <http://www.wanadev.fr/>
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright notice, this
    list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation
    and/or other materials provided with the distribution.
  * Neither Wanadev nor the names of its contributors may be used
    to endorse or promote products derived from this software without specific
    prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Authors

• Fabien LOISON http://www.flozz.fr/

Changelog

• 1.0.2: Fixed SPDX license name in package.json (@jbghoul, #11)
• 1.0.1: Detect Edge to generate a MS cursor for it (#10)
• 1.0.0: Initial release