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