mirror of
https://github.com/matrix-construct/construct
synced 2024-11-30 02:32:43 +01:00
130 lines
3 KiB
JavaScript
130 lines
3 KiB
JavaScript
/*
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// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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*/
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'use strict';
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/**
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*
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* Menu controller
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*
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*/
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mc.ng.app.controller('menu', class extends mc.ng.controller
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{
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constructor($scope)
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{
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super("menu", $scope);
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}
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/* (a)ng-click on a menu button
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*
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* 1. Item tab can define a click(event) function.
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* 2. Item tab can define a target element, which will be shown/hidden.
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*/
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async toggle(menu, name, event, ...args)
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{
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let e = event.delegateTarget;
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let item = menu[name];
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if(item === undefined)
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return;
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if(item.disabled)
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return;
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if(item.holds !== undefined && event.type == "click")
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return;
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if(typeof(item.click) == "function")
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if(await item.click(event, ...args) === false)
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return;
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if(item.target !== undefined)
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{
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let state = mc.show[item.target]? true : false;
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mc.show[item.target] = !state;
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}
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}
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/* hold down on a menu button
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* use ng-mousedown and ng-mouseup, or ng-click
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*
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*/
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hold(menu, name, event, ...args)
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{
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let e = event.delegateTarget;
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let item = menu[name];
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if(item === undefined)
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return;
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if(item.holds === undefined)
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return;
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let click = () =>
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this.toggle(menu, name, event, ...args);
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switch(event.type)
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{
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case "mousedown":
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$(e).addClass("holding");
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item.holding = mc.timeout(item.holds, click);
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event.stopPropagation();
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break;
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case "mouseup":
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$(e).removeClass("holding");
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mc.timeout.cancel(item.holding);
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event.stopPropagation();
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break;
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}
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}
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/* Determines whether a menu button is considered "selected"
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* which generally applies a CSS class to change the color etc.
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*
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* The goal here is not simply to determine selection by the user's interaction
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* with the menu button itself, but to also allow distant functionality to assert
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* the menu button is no longer selected. For example: closing a div without using
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* menu button that opened it should not leave the menu button in the selected state.
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*
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* Options:
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* 1. Use mc.show boolean dictionary by element ID
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* 2. A boolean value in the menu item tab 'selected': true/false,
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* 3. A function in place of the boolean value in #1.
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* 4. If the menu item uses the "target" concept, the target element is :hidden.
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*/
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selected(menu, name, item)
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{
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if(item === undefined)
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return false;
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switch(typeof(item.selected))
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{
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case "undefined":
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break;
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case "function":
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return item.selected();
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default:
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return item.selected == true;
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}
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if(item.target !== undefined)
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{
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if($(item.target).length == 0)
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return false;
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return mc.show[item.target] === true? true : false;
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}
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return false;
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}
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});
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