зеркало из https://github.com/mozilla/gecko-dev.git
53 строки
2.0 KiB
Plaintext
53 строки
2.0 KiB
Plaintext
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
||
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
||
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
||
|
|
|
||
|
|
#include "nsISupports.idl"
|
||
|
|
|
||
|
|
interface nsIURI;
|
||
|
|
|
||
|
|
[function, scriptable, uuid(e4089e21-71b6-40af-b546-33c21b90e874)]
|
||
|
|
interface mozIRepresentativeColorCallback : nsISupports
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* Will be called when color analysis finishes.
|
||
|
|
*
|
||
|
|
* @param success
|
||
|
|
* True if analysis was successful, false otherwise.
|
||
|
|
* Analysis can fail if the image is transparent, imageURI doesn't
|
||
|
|
* resolve to a valid image, or the image is too big.
|
||
|
|
*
|
||
|
|
* @param color
|
||
|
|
* The representative color as an integer in RGB form.
|
||
|
|
* e.g. 0xFF0102 == rgb(255,1,2)
|
||
|
|
* If success is false, color is not provided.
|
||
|
|
*/
|
||
|
|
void onComplete(in boolean success, [optional] in unsigned long color);
|
||
|
|
};
|
||
|
|
|
||
|
|
[scriptable, uuid(d056186c-28a0-494e-aacc-9e433772b143)]
|
||
|
|
interface mozIColorAnalyzer : nsISupports
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* Given an image URI, find the most representative color for that image
|
||
|
|
* based on the frequency of each color. Preference is given to colors that
|
||
|
|
* are more interesting. Avoids the background color if it can be
|
||
|
|
* discerned. Ignores sufficiently transparent colors.
|
||
|
|
*
|
||
|
|
* This is intended to be used on favicon images. Larger images take longer
|
||
|
|
* to process, especially those with a larger number of unique colors. If
|
||
|
|
* imageURI points to an image that has more than 128^2 pixels, this method
|
||
|
|
* will fail before analyzing it for performance reasons.
|
||
|
|
*
|
||
|
|
* @param imageURI
|
||
|
|
* A URI pointing to the image - ideally a data: URI, but any scheme
|
||
|
|
* that will load when setting the src attribute of a DOM img element
|
||
|
|
* should work.
|
||
|
|
* @param callback
|
||
|
|
* Function to call when the representative color is found or an
|
||
|
|
* error occurs.
|
||
|
|
*/
|
||
|
|
void findRepresentativeColor(in nsIURI imageURI,
|
||
|
|
in mozIRepresentativeColorCallback callback);
|
||
|
|
};
|