const Clutter = imports.gi.Clutter;
const Meta = imports.gi.Meta;
const St = imports.gi.St;
/**
* Simplify global signals and function injections handling
* abstract class
*/
const BasicHandler = class DashToDock_BasicHandler {
constructor() {
this._storage = new Object();
}
add(/* unlimited 3-long array arguments */) {
// Convert arguments object to array, concatenate with generic
let args = Array.concat('generic', Array.slice(arguments));
// Call addWithLabel with ags as if they were passed arguments
this.addWithLabel.apply(this, args);
}
destroy() {
for( let label in this._storage )
this.removeWithLabel(label);
}
addWithLabel(label /* plus unlimited 3-long array arguments*/) {
if (this._storage[label] == undefined)
this._storage[label] = new Array();
// Skip first element of the arguments
for (let i = 1; i < arguments.length; i++) {
let item = this._storage[label];
item.push(this._create(arguments[i]));
}
}
removeWithLabel(label) {
if (this._storage[label]) {
for (let i = 0; i < this._storage[label].length; i++)
this._remove(this._storage[label][i]);
delete this._storage[label];
}
}
// Virtual methods to be implemented by subclass
/**
* Create single element to be stored in the storage structure
*/
_create(item) {
throw new Error('no implementation of _create in ' + this);
}
/**
* Correctly delete single element
*/
_remove(item) {
throw new Error('no implementation of _remove in ' + this);
}
};
/**
* Manage global signals
*/
var GlobalSignalsHandler = class DashToDock_GlobalSignalHandler extends BasicHandler {
_create(item) {
let object = item[0];
let event = item[1];
let callback = item[2]
let id = object.connect(event, callback);
return [object, id];
}
_remove(item) {
item[0].disconnect(item[1]);
}
};
/**
* Color manipulation utilities
*/
var ColorUtils = class DashToDock_ColorUtils {
// Darken or brigthen color by a fraction dlum
// Each rgb value is modified by the same fraction.
// Return "#rrggbb" string
static ColorLuminance(r, g, b, dlum) {
let rgbString = '#';
rgbString += ColorUtils._decimalToHex(Math.round(Math.min(Math.max(r*(1+dlum), 0), 255)), 2);
rgbString += ColorUtils._decimalToHex(Math.round(Math.min(Math.max(g*(1+dlum), 0), 255)), 2);
rgbString += ColorUtils._decimalToHex(Math.round(Math.min(Math.max(b*(1+dlum), 0), 255)), 2);
return rgbString;
}
// Convert decimal to an hexadecimal string adding the desired padding
static _decimalToHex(d, padding) {
let hex = d.toString(16);
while (hex.length < padding)
hex = '0'+ hex;
return hex;
}
// Convert hsv ([0-1, 0-1, 0-1]) to rgb ([0-255, 0-255, 0-255]).
// Following algorithm in https://en.wikipedia.org/wiki/HSL_and_HSV
// here with h = [0,1] instead of [0, 360]
// Accept either (h,s,v) independently or {h:h, s:s, v:v} object.
// Return {r:r, g:g, b:b} object.
static HSVtoRGB(h, s, v) {
if (arguments.length === 1) {
s = h.s;
v = h.v;
h = h.h;
}
let r,g,b;
let c = v*s;
let h1 = h*6;
let x = c*(1 - Math.abs(h1 % 2 - 1));
let m = v - c;
if (h1 <=1)
r = c + m, g = x + m, b = m;
else if (h1 <=2)
r = x + m, g = c + m, b = m;
else if (h1 <=3)
r = m, g = c + m, b = x + m;
else if (h1 <=4)
r = m, g = x + m, b = c + m;
else if (h1 <=5)
r = x + m, g = m, b = c + m;
else
r = c + m, g = m, b = x + m;
return {
r: Math.round(r * 255),
g: Math.round(g * 255),
b: Math.round(b * 255)
};
}
// Convert rgb ([0-255, 0-255, 0-255]) to hsv ([0-1, 0-1, 0-1]).
// Following algorithm in https://en.wikipedia.org/wiki/HSL_and_HSV
// here with h = [0,1] instead of [0, 360]
// Accept either (r,g,b) independently or {r:r, g:g, b:b} object.
// Return {h:h, s:s, v:v} object.
static RGBtoHSV(r, g, b) {
if (arguments.length === 1) {
r = r.r;
g = r.g;
b = r.b;
}
let h,s,v;
let M = Math.max(r, g, b);
let m = Math.min(r, g, b);
let c = M - m;
if (c == 0)
h = 0;
else if (M == r)
h = ((g-b)/c) % 6;
else if (M == g)
h = (b-r)/c + 2;
else
h = (r-g)/c + 4;
h = h/6;
v = M/255;
if (M !== 0)
s = c/M;
else
s = 0;
return {
h: h,
s: s,
v: v
};
}
};
/**
* Manage function injection: both instances and prototype can be overridden
* and restored
*/
var InjectionsHandler = class DashToDock_InjectionsHandler extends BasicHandler {
_create(item) {
let object = item[0];
let name = item[1];
let injectedFunction = item[2];
let original = object[name];
object[name] = injectedFunction;
return [object, name, injectedFunction, original];
}
_remove(item) {
let object = item[0];
let name = item[1];
let original = item[3];
object[name] = original;
}
};
/**
* Return the actual position reverseing left and right in rtl
*/
function getPosition(settings) {
let position = settings.get_enum('dock-position');
if (Clutter.get_default_text_direction() == Clutter.TextDirection.RTL) {
if (position == St.Side.LEFT)
position = St.Side.RIGHT;
else if (position == St.Side.RIGHT)
position = St.Side.LEFT;
}
return position;
}
function drawRoundedLine(cr, x, y, width, height, isRoundLeft, isRoundRight, stroke, fill) {
if (height > width) {
y += Math.floor((height - width) / 2.0);
height = width;
}
height = 2.0 * Math.floor(height / 2.0);
var leftRadius = isRoundLeft ? height / 2.0 : 0.0;
var rightRadius = isRoundRight ? height / 2.0 : 0.0;
cr.moveTo(x + width - rightRadius, y);
cr.lineTo(x + leftRadius, y);
if (isRoundLeft)
cr.arcNegative(x + leftRadius, y + leftRadius, leftRadius, -Math.PI/2, Math.PI/2);
else
cr.lineTo(x, y + height);
cr.lineTo(x + width - rightRadius, y + height);
if (isRoundRight)
cr.arcNegative(x + width - rightRadius, y + rightRadius, rightRadius, Math.PI/2, -Math.PI/2);
else
cr.lineTo(x + width, y);
cr.closePath();
if (fill != null) {
cr.setSource(fill);
cr.fillPreserve();
}
if (stroke != null)
cr.setSource(stroke);
cr.stroke();
}