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Diffstat (limited to 'extensions/vertical-workspaces/lib/util.js')
| -rw-r--r-- | extensions/vertical-workspaces/lib/util.js | 364 |
1 files changed, 364 insertions, 0 deletions
diff --git a/extensions/vertical-workspaces/lib/util.js b/extensions/vertical-workspaces/lib/util.js new file mode 100644 index 0000000..5f5c069 --- /dev/null +++ b/extensions/vertical-workspaces/lib/util.js @@ -0,0 +1,364 @@ +/** + * V-Shell (Vertical Workspaces) + * util.js + * + * @author GdH <G-dH@github.com> + * @copyright 2022 - 2023 + * @license GPL-3.0 + * + */ + +'use strict'; + +const Gi = imports._gi; +const { Shell, Meta, Clutter } = imports.gi; + +const Config = imports.misc.config; +const Main = imports.ui.main; + +const ExtensionUtils = imports.misc.extensionUtils; +const Me = ExtensionUtils.getCurrentExtension(); + +var shellVersion = parseFloat(Config.PACKAGE_VERSION); + +var Overrides = class { + constructor() { + this._overrides = {}; + } + + addOverride(name, prototype, overrideList) { + this._overrides[name] = { + originals: this.overrideProto(prototype, overrideList), + prototype, + }; + } + + removeOverride(name) { + const override = this._overrides[name]; + if (!override) + return false; + + this.overrideProto(override.prototype, override.originals); + this._overrides[name] = undefined; + return true; + } + + removeAll() { + for (let name in this._overrides) { + this.removeOverride(name); + this._overrides[name] = undefined; + } + } + + hookVfunc(proto, symbol, func) { + proto[Gi.hook_up_vfunc_symbol](symbol, func); + } + + overrideProto(proto, overrides) { + const backup = {}; + + for (let symbol in overrides) { + if (symbol.startsWith('after_')) { + const actualSymbol = symbol.slice('after_'.length); + const fn = proto[actualSymbol]; + const afterFn = overrides[symbol]; + proto[actualSymbol] = function (...args) { + args = Array.prototype.slice.call(args); + const res = fn.apply(this, args); + afterFn.apply(this, args); + return res; + }; + backup[actualSymbol] = fn; + } else { + backup[symbol] = proto[symbol]; + if (symbol.startsWith('vfunc')) { + if (shellVersion < 42) + this.hookVfunc(proto, symbol.slice(6), overrides[symbol]); + else + this.hookVfunc(proto[Gi.gobject_prototype_symbol], symbol.slice(6), overrides[symbol]); + } else { + proto[symbol] = overrides[symbol]; + } + } + } + return backup; + } +}; + +function getOverviewTranslations(opt, dash, tmbBox, searchEntryBin) { + // const tmbBox = Main.overview._overview._controls._thumbnailsBox; + let searchTranslationY = 0; + if (searchEntryBin.visible) { + const offset = (dash.visible && (!opt.DASH_VERTICAL ? dash.height + 12 : 0)) + + (opt.WS_TMB_TOP ? tmbBox.height + 12 : 0); + searchTranslationY = -searchEntryBin.height - offset - 30; + } + + let tmbTranslationX = 0; + let tmbTranslationY = 0; + let offset; + if (tmbBox.visible) { + switch (opt.WS_TMB_POSITION) { + case 3: // left + offset = 10 + (dash?.visible && opt.DASH_LEFT ? dash.width : 0); + tmbTranslationX = -tmbBox.width - offset; + tmbTranslationY = 0; + break; + case 1: // right + offset = 10 + (dash?.visible && opt.DASH_RIGHT ? dash.width : 0); + tmbTranslationX = tmbBox.width + offset; + tmbTranslationY = 0; + break; + case 0: // top + offset = 10 + (dash?.visible && opt.DASH_TOP ? dash.height : 0) + Main.panel.height; + tmbTranslationX = 0; + tmbTranslationY = -tmbBox.height - offset; + break; + case 2: // bottom + offset = 10 + (dash?.visible && opt.DASH_BOTTOM ? dash.height : 0) + Main.panel.height; // just for case the panel is at bottom + tmbTranslationX = 0; + tmbTranslationY = tmbBox.height + offset; + break; + } + } + + let dashTranslationX = 0; + let dashTranslationY = 0; + let position = opt.DASH_POSITION; + // if DtD replaced the original Dash, read its position + if (dashIsDashToDock()) + position = dash._position; + + if (dash?.visible) { + switch (position) { + case 0: // top + dashTranslationX = 0; + dashTranslationY = -dash.height - dash.margin_bottom - Main.panel.height; + break; + case 1: // right + dashTranslationX = dash.width; + dashTranslationY = 0; + break; + case 2: // bottom + dashTranslationX = 0; + dashTranslationY = dash.height + dash.margin_bottom + Main.panel.height; + break; + case 3: // left + dashTranslationX = -dash.width; + dashTranslationY = 0; + break; + } + } + + return [tmbTranslationX, tmbTranslationY, dashTranslationX, dashTranslationY, searchTranslationY]; +} + +function openPreferences() { + const windows = global.display.get_tab_list(Meta.TabList.NORMAL_ALL, null); + let tracker = Shell.WindowTracker.get_default(); + let metaWin, isVW = null; + + for (let win of windows) { + const app = tracker.get_window_app(win); + if (win.get_title().includes(Me.metadata.name) && app.get_name() === 'Extensions') { + // this is our existing window + metaWin = win; + isVW = true; + break; + } else if (win.wm_class.includes('org.gnome.Shell.Extensions')) { + // this is prefs window of another extension + metaWin = win; + isVW = false; + } + } + + if (metaWin && !isVW) { + // other prefs window blocks opening another prefs window, so close it + metaWin.delete(global.get_current_time()); + } else if (metaWin && isVW) { + // if prefs window already exist, move it to the current WS and activate it + metaWin.change_workspace(global.workspace_manager.get_active_workspace()); + metaWin.activate(global.get_current_time()); + } + + if (!metaWin || (metaWin && !isVW)) { + try { + Main.extensionManager.openExtensionPrefs(Me.metadata.uuid, '', {}); + } catch (e) { + log(e); + } + } +} + +function activateSearchProvider(prefix = '') { + const searchEntry = Main.overview.searchEntry; + if (!searchEntry.get_text() || !searchEntry.get_text().startsWith(prefix)) { + prefix = `${prefix} `; + const position = prefix.length; + searchEntry.set_text(prefix); + searchEntry.get_first_child().set_cursor_position(position); + searchEntry.get_first_child().set_selection(position, position); + } else { + searchEntry.set_text(''); + } +} + +function dashNotDefault() { + return Main.overview.dash !== Main.overview._overview._controls.layoutManager._dash; +} + +function dashIsDashToDock() { + return Main.overview.dash._isHorizontal !== undefined; +} + +// Reorder Workspaces - callback for Dash and workspacesDisplay +function reorderWorkspace(direction = 0) { + let activeWs = global.workspace_manager.get_active_workspace(); + let activeWsIdx = activeWs.index(); + let targetIdx = activeWsIdx + direction; + if (targetIdx > -1 && targetIdx < global.workspace_manager.get_n_workspaces()) + global.workspace_manager.reorder_workspace(activeWs, targetIdx); +} + +function exposeWindows(adjustment, activateKeyboard) { + // expose windows for static overview modes + if (!adjustment.value && !Main.overview._animationInProgress) { + if (adjustment.value === 0) { + adjustment.value = 0; + adjustment.ease(1, { + duration: 200, + mode: Clutter.AnimationMode.EASE_OUT_QUAD, + onComplete: () => { + if (activateKeyboard) { + Main.ctrlAltTabManager._items.forEach(i => { + if (i.sortGroup === 1 && i.name === 'Windows') + Main.ctrlAltTabManager.focusGroup(i); + }); + } + }, + }); + } + } +} + +function isShiftPressed(state = null) { + if (state === null) + [,, state] = global.get_pointer(); + return (state & Clutter.ModifierType.SHIFT_MASK) !== 0; +} + +function isCtrlPressed(state = null) { + if (state === null) + [,, state] = global.get_pointer(); + return (state & Clutter.ModifierType.CONTROL_MASK) !== 0; +} + +function isAltPressed(state = null) { + if (state === null) + [,, state] = global.get_pointer(); + return (state & Clutter.ModifierType.MOD1_MASK) !== 0; +} + +function fuzzyMatch(term, text) { + let pos = -1; + const matches = []; + // convert all accented chars to their basic form and to lower case + const _text = text.normalize('NFD').replace(/[\u0300-\u036f]/g, '').toLowerCase(); + const _term = term.normalize('NFD').replace(/[\u0300-\u036f]/g, '').toLowerCase(); + + // if term matches the substring exactly, gains the highest weight + if (_text.includes(_term)) + return 0; + + for (let i = 0; i < _term.length; i++) { + let c = _term[i]; + let p; + if (pos > 0) + p = _term[i - 1]; + while (true) { + pos += 1; + if (pos >= _text.length) + return -1; + + if (_text[pos] === c) { + matches.push(pos); + break; + } else if (_text[pos] === p) { + matches.pop(); + matches.push(pos); + } + } + } + + // add all position to get a weight of the result + // results closer to the beginning of the text and term characters closer to each other will gain more weight. + return matches.reduce((r, p) => r + p) - matches.length * matches[0] + matches[0]; +} + +function strictMatch(term, text) { + // remove diacritics and accents from letters + let s = text.normalize('NFD').replace(/[\u0300-\u036f]/g, '').toLowerCase(); + let p = term.normalize('NFD').replace(/[\u0300-\u036f]/g, '').toLowerCase(); + let ps = p.split(/ +/); + + // allows to use multiple exact patterns separated by a space in arbitrary order + for (let w of ps) { // escape regex control chars + if (!s.match(w.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'))) + return -1; + } + return 0; +} + +function isMoreRelevant(stringA, stringB, pattern) { + let regex = /[^a-zA-Z\d]/; + let strSplitA = stringA.normalize('NFD').replace(/[\u0300-\u036f]/g, '').toLowerCase().split(regex); + let strSplitB = stringB.normalize('NFD').replace(/[\u0300-\u036f]/g, '').toLowerCase().split(regex); + let aAny = false; + strSplitA.forEach(w => { + aAny = aAny || w.startsWith(pattern); + }); + let bAny = false; + strSplitB.forEach(w => { + bAny = bAny || w.startsWith(pattern); + }); + + // if both strings contain a word that starts with the pattern + // prefer the one whose first word starts with the pattern + if (aAny && bAny) + return !strSplitA[0].startsWith(pattern) && strSplitB[0].startsWith(pattern); + else + return !aAny && bAny; +} + +function getEnabledExtensions(uuid = '') { + let extensions = []; + Main.extensionManager._extensions.forEach(e => { + if (e.state === 1 && e.uuid.includes(uuid)) + extensions.push(e); + }); + return extensions; +} + +function getScrollDirection(event) { + // scroll wheel provides two types of direction information: + // 1. Clutter.ScrollDirection.DOWN / Clutter.ScrollDirection.UP + // 2. Clutter.ScrollDirection.SMOOTH + event.get_scroll_delta() + // first SMOOTH event returns 0 delta, + // so we need to always read event.direction + // since mouse without smooth scrolling provides exactly one SMOOTH event on one wheel rotation click + // on the other hand, under X11, one wheel rotation click sometimes doesn't send direction event, only several SMOOTH events + // so we also need to convert the delta to direction + let direction = event.get_scroll_direction(); + + if (direction !== Clutter.ScrollDirection.SMOOTH) + return direction; + + let [, delta] = event.get_scroll_delta(); + + if (!delta) + return null; + + direction = delta > 0 ? Clutter.ScrollDirection.DOWN : Clutter.ScrollDirection.UP; + + return direction; +} |